FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10, Rule 13]
DRAWING COMPONENT GENERATION DEVICE, DISPLAY SYSTEM, AND
DRAWING COMPONENT GENERATION METHOD;
MITSUBISHI ELECTRIC CORPORATION, A CORPORATION ORGANISED
AND EXISTING UNDER THE LAWS OF JAPAN, WHOSE ADDRESS IS 7-
3, MARUNOUCHI 2-CHOME, CHIYODA-KU, TOKYO 1008310, JAPAN
5
10
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE
15 INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.
20
2
DESCRIPTION
Field
[0001] The present invention relates to a drawing
5 component generation device, to a display system, and to a
drawing component generation method, for generating a
drawing component for use in display of the status of a
device installed in a car of a train.
10 Background
[0002] An operational state of a device installed in a
car of a train or the like is conventionally displayed on a
display device installed in the train cab using display
components, each of which is a modularized part of display
15 content. Such technology is disclosed in Patent Literature
1.
Citation List
Patent Literature
20 [0003] Patent Literature 1: Japanese Patent Application
Laid-open No. 2009-101964
Summary
Technical Problem
25 [0004] However, the foregoing conventional technology
requires a user to manually enter necessary information to
generate a display component. This presents a problem in
that generation of a display component is laborious and
time-consuming.
30 [0005] The present invention has been made in view of
the foregoing, and it is an object of the present invention
to provide a drawing component generation device that
allows a reduction in the amount of user operation to
3
generate a drawing component for use in display of the
status of a device installed in a car of a train.
Solution to Problem
5 [0006] In order to solve the above-stated problem and
achieve the object, the present invention provides a
drawing component generation device that generates a
drawing component being a modularized part of display
content to be displayed on the display screen when a
10 display device installed in a train is to display a status
of a device installed in a car of the train on a display
screen using the drawing component. The drawing component
generation device includes: a reception unit to provide an
input screen displaying entries for information for use in
15 generation of the drawing component, based on a train
display definition that defines a train formation pattern
representing an arrangement of cars in a formation of the
train, and on a device layout definition that defines a
layout pattern representing a device layout in the car, and
20 to receive an input of information for the entries from a
user; and a generation unit to generate the drawing
component based on the train display definition, on the
device layout definition, on input information being
information input from the user on the reception unit, and
25 on a display pattern definition that defines display
content relating to the status of the device.
Advantageous Effects of Invention
[0007] The present invention provides an advantage in
30 that the drawing component generation device allows a
reduction in the amount of user operation to generate a
drawing component for use by a display device installed in
a train to display the status of a device installed in a
4
car of the train.
Brief Description of Drawings
[0008] FIG. 1 is a block diagram illustrating an example
5 configuration of a display system according to a first
embodiment.
FIG. 2 is a diagram illustrating an example of display
format for the display of the statuses of devices on a
display screen provided by the train cab display device
10 according to the first embodiment.
FIG. 3 is a diagram illustrating an example of
modularization, into multiple drawing components, of
display content to be displayed on a display screen by the
train cab display device according to the first embodiment.
15 FIG. 4 is a diagram illustrating an example of drawing
component 1 displayed by the train cab display device
according to the first embodiment.
FIG. 5 is a diagram illustrating an example of drawing
table for drawing component 1 held by the train cab display
20 device according to the first embodiment.
FIG. 6 is a diagram illustrating an example of drawing
component 2 displayed by the train cab display device
according to the first embodiment.
FIG. 7 is a diagram illustrating an example of drawing
25 table for drawing component 2 held by the train cab display
device according to the first embodiment.
FIG. 8 is a diagram illustrating an example of drawing
component 3 displayed by the train cab display device
according to the first embodiment.
30 FIG. 9 is a diagram illustrating an example of drawing
table for drawing component 3 held by the train cab display
device according to the first embodiment.
FIG. 10 is a block diagram illustrating an example
5
configuration of the display system including the drawing
component generation device according to the first
embodiment.
FIG. 11 is a diagram illustrating an example of a
5 first train formation pattern presented by the train
display definition held by the train display definition
holding unit of the drawing component generation device
according to the first embodiment.
FIG. 12 is a diagram illustrating an example of a
10 second train formation pattern presented by the train
display definition held by the train display definition
holding unit of the drawing component generation device
according to the first embodiment.
FIG. 13 is a diagram illustrating an example provided
15 in tabular form, of the first train formation pattern
presented by the train display definition held by the train
display definition holding unit of the drawing component
generation device according to the first embodiment.
FIG. 14 is a diagram illustrating an example provided
20 in tabular form, of the second train formation pattern
presented by the train display definition held by the train
display definition holding unit of the drawing component
generation device according to the first embodiment.
FIG. 15 is a diagram illustrating a first example of
25 layout pattern presented by a device layout definition held
by the device layout definition holding unit of the drawing
component generation device according to the first
embodiment.
FIG. 16 is a diagram illustrating a second example of
30 layout pattern presented by the device layout definition
held by the device layout definition holding unit of the
drawing component generation device according to the first
embodiment.
6
FIG. 17 is a diagram illustrating an example of
display screen displayed on a display unit during a process
of generation of a drawing component performed by a
reception unit of the drawing component generation device
5 according to the first embodiment.
FIG. 18 is a diagram illustrating an example of input
screen displayed on the display unit by the reception unit
of the drawing component generation device according to the
first embodiment.
10 FIG. 19 is a diagram illustrating an example of color
patterns held by the generation unit of the drawing
component generation device according to the first
embodiment.
FIG. 20 is a diagram illustrating an example of image
15 pattern held by the generation unit of the drawing
component generation device according to the first
embodiment.
FIG. 21 is a diagram illustrating an example of text
patterns held by the generation unit of the drawing
20 component generation device according to the first
embodiment.
FIG. 22 is a diagram illustrating a first example of
drawing component generated by the drawing component
generation device according to the first embodiment.
25 FIG. 23 is a diagram illustrating a second example of
drawing component generated by the drawing component
generation device according to the first embodiment.
FIG. 24 is a diagram illustrating a third example of
drawing component generated by the drawing component
30 generation device according to the first embodiment.
FIG. 25 is a diagram illustrating drawing component 1
generated by the generation unit of the drawing component
generation device according to the first embodiment.
7
FIG. 26 is a diagram illustrating an example of
display pattern definition assigned to drawing component 1
to be generated by the generation unit of the drawing
component generation device according to the first
5 embodiment.
FIG. 27 is a diagram illustrating drawing component 2
generated by the generation unit of the drawing component
generation device according to the first embodiment.
FIG. 28 is a diagram illustrating an example of
10 display pattern definition assigned to drawing component 2
to be generated by the generation unit of the drawing
component generation device according to the first
embodiment.
FIG. 29 is a diagram illustrating drawing component 3
15 generated by the generation unit of the drawing component
generation device according to the first embodiment.
FIG. 30 is a diagram illustrating an example of
display pattern definition assigned to drawing component 3
to be generated by the generation unit of the drawing
20 component generation device according to the first
embodiment.
FIG. 31 is a diagram illustrating another example of
the input screen displayed on the display unit by the
reception unit of the drawing component generation device
25 according to the first embodiment.
FIG. 32 is a flowchart illustrating an operation of
generating a drawing component performed by the drawing
component generation device according to the first
embodiment.
30 FIG. 33 is a diagram illustrating an example of a case
in which a processor and a memory constitute processing
circuitry included in the drawing component generation
device according to the first embodiment.
8
FIG. 34 is a diagram illustrating an example of a case
in which a dedicated hardware element implements processing
circuitry included in the drawing component generation
device according to the first embodiment.
5 FIG. 35 is a block diagram illustrating an example
configuration of the display system including the train cab
display device according to a second embodiment.
FIG. 36 is a diagram illustrating an example of signal
definition held for drawing component 2 by the signal
10 definition holding unit of the train cab display device
according to the second embodiment.
FIG. 37 is a diagram illustrating an example of
storage method when the signal data storage unit stores
values of second signals for drawing component 2 in a
15 drawing table of the drawing data holding unit in the train
cab display device according to the second embodiment.
FIG. 38 is a diagram illustrating another example of
drawing component 2 displayed by the train cab display
device according to the second embodiment.
20 FIG. 39 is a flowchart illustrating an operation of
displaying the statuses of devices installed in each of the
cars of a train performed by the train cab display device
according to the second embodiment.
FIG. 40 is a block diagram illustrating an example
25 configuration of a display system including a train cab
display device according to a third embodiment.
FIG. 41 is a diagram illustrating an example of signal
definition held by the signal definition holding unit of
the train cab display device according to the third
30 embodiment.
FIG. 42 is a diagram illustrating an example of the
orientation of a train and the travel direction of the
train displayed by the train cab display device according
9
to the third embodiment.
FIG. 43 is a flowchart illustrating an operation of
displaying the statuses of devices installed in each of the
cars of a train performed by the train cab display device
5 according to the third embodiment.
Description of Embodiments
[0009] A drawing component generation device, a display
system, and a drawing component generation method according
10 to embodiments of the present invention will be described
in detail below with reference to the drawings. Note that
these embodiments are not intended to limit the scope of
this invention.
[0010] First Embodiment.
15 FIG. 1 is a block diagram illustrating an example
configuration of a display system 300 according to a first
embodiment of the present invention. The display system
300 includes a train cab display device 100 and a drawing
component generation device 200. The train cab display
20 device 100 is a display device that is installed in the
train cab (not illustrated) and displays statuses of
respective devices installed in each of the cars
constituting the train and the like on a display screen.
The phrase “devices installed in each of the cars” refers
25 to, for example, a door (DOOR), a brake (BRAKE), a traction
(TRACTION), a heating ventilating air conditioning (HVAC),
and the like. The operation performed by the train cab
display device 100 of displaying the statuses of devices on
a display screen may hereinafter also be described as “the
30 train cab display device 100 draws the statuses of devices
on a display screen”. For displaying the statuses of
devices and the like on a display screen, the train cab
display device 100 performs a drawing process using
10
multiple drawing components, each of which is a modularized
part of display content to be displayed on a display screen.
[0011] When the train cab display device 100 is to
display the statuses of devices installed in a car of the
5 train on a display screen using drawing components, the
drawing component generation device 200 generates the
drawing components for use by the train cab display device
100. The drawing component generation device 200 provides
a user with an input screen that displays entries for
10 information for use in generation of a drawing component,
receives inputs of information for the entries from the
user, and generates the drawing component to be used in the
train cab display device 100. The drawing component
generation device 200 may be permanently installed in the
15 train together with the train cab display device 100, or
may be detachable from the train cab display device 100 and
be connected to the train cab display device 100 only when
the drawing component generation device 200 has generated
or modified a drawing component.
20 [0012] Usage of the drawing components generated by the
drawing component generation device 200 in the train cab
display device 100 will now be specifically described as an
overview of process performed by the train cab display
device 100 to display the statuses of devices on a display
25 screen using the multiple drawing components.
[0013] FIG. 2 is a diagram illustrating an example of
display format for the display of the statuses of devices
on a display screen 71 provided by the train cab display
device 100 according to the first embodiment. The
30 illustration in FIG. 2 assumes a train having a six-car
formation by way of example. As illustrated in FIG. 2, the
train cab display device 100 displays, on the display
screen 71, the six cars reflecting the train formation and
11
an arrow indicating the travel direction. The train cab
display device 100 also displays, on the display screen 71,
the statuses of respective doors installed in each of the
cars as the statuses of devices. The illustration in FIG.
5 2 assumes, by way of example, that each of the cars has two
doors in each of the right and left sides, i.e., four doors
in total. The train cab display device 100 further
displays, on the display screen 71, a use status, a fault
status, or the like of each of the brakes, of the tractions,
10 and of the HVACs as the statuses of devices.
[0014] The train cab display device 100 provides display
control through modularization of the display screen 71
illustrated in FIG. 2 into multiple drawing components
rather than displaying as an integrated unit. FIG. 3 is a
15 diagram illustrating an example of modularization, into
multiple drawing components, of display content to be
displayed on the display screen 71 by the train cab display
device 100 according to the first embodiment. FIG. 3
illustrates the display screen 71 illustrated in FIG. 2 as
20 being formed of three drawing components by way of example.
Drawing component 1 is a component for displaying the
status of the train formation. Drawing component 2 is a
component for displaying the statuses of the doors.
Drawing component 3 is a component for displaying the
25 statuses of the brakes, of the tractions, and of the HVACs.
As illustrated in FIG. 3, the content displayed on the
display screen 71 is modularized such that one drawing
component is used to draw the entire six-car formation of
the train, that is, modularized on a per-train basis.
30 [0015] The train cab display device 100 holds drawing
data in tabular form having rows corresponding to
respective cars and columns corresponding to respective car
properties on a per-drawing component basis. The drawing
12
data is information on the statuses of respective devices
obtained by the train cab display device 100 from devices
installed in that car itself and in other cars. The train
cab display device 100 performs a drawing process based on
5 the drawing data, and provides a display on the display
screen 71 as illustrated in FIGS. 2 and 3. Description
will be presented below specifically of the drawing
components to be displayed on the display screen 71 by the
train cab display device 100, and of the drawing data held
10 in the drawing table for each drawing component by the
train cab display device 100 during this operation.
[0016] FIG. 4 is a diagram illustrating an example of
drawing component 1 displayed by the train cab display
device 100 according to the first embodiment. Drawing
15 component 1 of FIG. 4 has a solid arrow indicating that the
train travels to the left. FIG. 4 illustrates an example
in which the leading car is the car M001, and the train cab
display device 100 installed in the leading car displays
that car on the left. Note that when the same train
20 changes the travel direction, causing the last car to
become the car M001, and the train cab display device 100
installed in the last car now displays that car on the left,
the train travels in the direction indicated by the dotted
arrow. In addition, drawing component 1 of FIG. 4 provides
25 a different display depending on whether there is a fault,
and indicates that the cars M003 and M006 have a fault.
The method of displaying differently is, for example, to
change the display color, but other method may be used. As
described later herein, the drawing component generation
30 device 200 is capable of setting how each drawing component
is to be displayed.
[0017] FIG. 5 is a diagram illustrating an example of a
drawing table 22a for drawing component 1 held by the train
13
cab display device 100 according to the first embodiment.
The drawing table 22a for drawing component 1 illustrated
in FIG. 5 holds drawing data for the six cars. In FIG. 5,
a cell of presence or absence of a fault contains drawing
5 data of “1” for a car without a fault, or drawing data of
“2” for a car having a fault. In addition, in FIG. 5, a
cell of travel direction contains drawing data of “1”
indicating the left. In the example of FIG. 5, a cell of
travel direction will contain drawing data of “2” to
10 indicate the right, and drawing data of “0” when there is
no travel direction to indicate. The table of FIG. 5
assumes that the displayed car numbers from 1 to 6
respectively correspond to the cars M001 to M006 of the
train illustrated in FIG. 4. This applies throughout the
15 following description. The train cab display device 100
displays, on the display screen 71, drawing component 1 for
the six-car train illustrated in FIG. 4 based on the
drawing data in the drawing table illustrated in FIG. 5.
Note that in FIG. 5, the values “0” and “1” in the left
20 column are numbers for identifying a group of information
displayed in the drawing component, and are each referred
to as item number. In addition, the titles “presence or
absence of fault” and “travel direction” in FIG. 5
represent the types of information displayed in the drawing
25 component, and are each referred to as item name. An item
name may represent the status of a device or a device
itself. This applies throughout the following description.
[0018] FIG. 6 is a diagram illustrating an example of
drawing component 2 displayed by the train cab display
30 device 100 according to the first embodiment. Drawing
component 2 of FIG. 6 indicates that a door L2 of the car
M001 and a door R1 of the car M002, of the cars M001 to
M006, are faulty. Drawing component 2 of FIG. 6 also
14
indicates that a door R1 of the car M004 has a sign of
fault. Drawing component 2 of FIG. 6 further indicates
that the other doors are normal. The information on the
status of a door may be information on the open-close
5 status instead of or in addition to information on whether
there is a fault.
[0019] FIG. 7 is a diagram illustrating an example of a
drawing table 22b for drawing component 2 held by the train
cab display device 100 according to the first embodiment.
10 The drawing table 22b for drawing component 2 illustrated
in FIG. 7 holds drawing data for the six cars. In FIG. 7,
the cells for the doors R1, the doors R2, the doors L1, and
the doors L2 contain drawing data of “1” for a normal door,
“2” for a door having a sign of fault, and “3” for a faulty
15 door. The train cab display device 100 displays, on the
display screen 71, drawing component 2 with respect to the
doors of the six-car train illustrated in FIG. 6 based on
the drawing data in the drawing table illustrated in FIG. 7.
[0020] FIG. 8 is a diagram illustrating an example of
20 drawing component 3 displayed by the train cab display
device 100 according to the first embodiment. Drawing
component 3 of FIG. 8 illustrates the operational state and
the like of devices installed in each of the cars M001 to
M006.
25 [0021] FIG. 9 is a diagram illustrating an example of a
drawing table 22c for drawing component 3 held by the train
cab display device 100 according to the first embodiment.
The drawing table 22c for drawing component 3 illustrated
in FIG. 9 holds drawing data for the six cars. In FIG. 9,
30 the cells of BRAKE contain drawing data of “0” for a car
having no brake, “1” for a car having the brake in normal
operation, and “2” for a car having the brake in an
isolation state. In addition, in FIG. 9, the cells of
15
TRACTION contain drawing data of “0” for a car having no
traction, “1” for a car having an ON traction, and “2”for a
car having an OFFLINE traction. Moreover, in FIG. 9, the
cells of HVAC contain drawing data of “0” for a car having
5 no HVAC, “1” for a STOP car not being air-conditioned, “2”
for a HEATING car being heated, and “3” for a COOLING car
being cooled. The train cab display device 100 displays,
on the display screen 71, drawing component 3 with respect
to devices such as the brakes of the six-car train
10 illustrated in FIG. 8 based on the drawing data in the
drawing table 22c illustrated in FIG. 9.
[0022] The drawing component generation device 200
generates a drawing component to be used as described above
in the train cab display device 100. A configuration and
15 an operation of the drawing component generation device 200
will now be described. FIG. 10 is a block diagram
illustrating an example configuration of the display system
300 including the drawing component generation device 200
according to the first embodiment. FIG. 10 also
20 illustrates the train cab display device 100 connected to
the drawing component generation device 200. The drawing
component generation device 200 includes a train display
definition holding unit 201, a device layout definition
holding unit 202, a reception unit 203, a display unit 204,
25 a generation unit 205, a modification unit 206, a storage
unit 207, and an output unit 208.
[0023] The train display definition holding unit 201
holds a train display definition that defines a train
formation pattern representing the arrangement of the cars
30 relating to the train formation. Specifically, the train
display definition provides the maximum number of displayed
cars, which is the maximum number of cars to be displayed
on the display screen 71 of the train cab display device
16
100; the configuration of the formation of the cars of the
train for the maximum number of displayed cars; and the
orientation of each of the cars. A conventional drawing
component is generated such that the user manually
5 generates and arranges elements that are each a constituent,
and generates setting data of the cars to be displayed and
the like for each of the elements by manual input. In this
regard, elements that display the same status of device
will be set with similar setting. In addition, the layout
10 pattern has regularity such as a linear lateral arrangement
of elements that display the same type of devices. Such
regularity can in general be standardized into patterns
depending on the formation of the train. A train is
constituted by multiple train-units, and a train-unit is
15 constituted by multiple cars. The train, the train-units,
and the cars each have an orientation. The orientation of
a train is either forward or reverse. The orientation of a
train-unit is either forward or reverse depending on the
orientation of the train, and the orientation of a car is
20 either forward or reverse depending on the orientation of
the train-unit.
[0024] FIG. 11 is a diagram illustrating an example of a
first train formation pattern presented by the train
display definition held by the train display definition
25 holding unit 201 of the drawing component generation device
200 according to the first embodiment. The first train
formation pattern illustrated in FIG. 11 is a form of train
in which one train-unit is constituted by eight cars 1 to 8,
and the train is constituted by the one train-unit. The
30 first train formation pattern indicates that the cars are
connected to each other in alternately different
orientations. FIG. 12 is a diagram illustrating an example
of a second train formation pattern presented by the train
17
display definition held by the train display definition
holding unit 201 of the drawing component generation device
200 according to the first embodiment. The second train
formation pattern illustrated in FIG. 12 is a form of train
5 in which one train-unit is constituted by two cars, and the
train is constituted by four train-units. The second train
formation pattern indicates that the cars are connected to
each other such that they face away from each other in each
of the train-units, and the train-units are connected to
10 each other in alternately different orientations. The
train formation pattern may assume a variety of patterns,
and is not limited to the train formation patterns of the
examples of FIGS. 11 and 12. The train display definition
holding unit 201 may hold the information of the train
15 formation patterns illustrated in FIGS. 11 and 12 in
tabular form. FIG. 13 is a diagram illustrating an example
provided in tabular form, of the first train formation
pattern presented by the train display definition held by
the train display definition holding unit 201 of the
20 drawing component generation device 200 according to the
first embodiment. FIG. 14 is a diagram illustrating an
example provided in tabular form, of the second train
formation pattern presented by the train display definition
held by the train display definition holding unit 201 of
25 the drawing component generation device 200 according to
the first embodiment. The orientation of the train is not
included in the tables of FIGS. 13 and 14 because of the
same orientation, but information on the orientation of the
train may also be included in the tables of FIGS. 13 and 14.
30 [0025] The device layout definition holding unit 202
holds a device layout definition that defines a layout
pattern representing the device layout in a car.
Specifically, the device layout definition is a layout
18
pattern of devices when one car includes multiple devices
to be displayed. As described above, the layout pattern of
elements each representing a device has regularity.
[0026] FIG. 15 is a diagram illustrating a first example
5 of the layout pattern presented by the device layout
definition held by the device layout definition holding
unit 202 of the drawing component generation device 200
according to the first embodiment. The left column in FIG.
15 provides, in order from top to bottom, a first layout
10 pattern, a second layout pattern, a third layout pattern,
and a fourth layout pattern. In the left column in FIG. 15,
a dotted rectangle represents a car, and the numbers 1 and
2 are numbers for identifying the devices in that car. A
number for identifying a device corresponds to the item
15 number described above. The layout scheme in the right
column in FIG. 15 describes the layout of the devices of
each layout pattern. When the item numbers are assigned to
respective devices in order from front to back in each of
the car, the second layout pattern corresponds to the train
20 having the first train formation pattern illustrated in FIG.
11, and the third layout pattern corresponds to the train
having the second train formation pattern illustrated in
FIG. 12. Note that the device layout scheme in the lateral
direction is merely by way of example, and a device layout
25 scheme in the vertical direction may also be used.
[0027] FIG. 16 is a diagram illustrating a second
example of the layout pattern presented by the device
layout definition held by the device layout definition
holding unit 202 of the drawing component generation device
30 200 according to the first embodiment. The left column
inFIG. 16 provides, in order from top to bottom, a fifth
layout pattern and a sixth layout pattern. In the left
column in FIG. 16, a dotted rectangle represents a car, and
19
the numbers 1 to 6 are numbers for identifying the devices
in that car. A number for identifying a device corresponds
to the item number described above. The layout scheme in
the right column in FIG. 16 describes the layout of the
5 devices of each layout pattern. In a case in which the
devices cannot be arranged in one lateral direction as
illustrated in FIG. 15, the devices may be arranged in a
clockwise direction from upper left as the fifth layout
pattern, or may be arranged in a staggered manner in order
10 from upper left to bottom, then shifting in the lateral
direction, and then from top to bottom as the sixth layout
pattern.
[0028] The reception unit 203 receives an operation of
generation of a drawing component from the user. FIG. 17
15 is a diagram illustrating an example of the display screen
71 displayed on the display unit 204 during a process of
generation of a drawing component performed by the
reception unit 203 of the drawing component generation
device 200 according to the first embodiment. The display
20 screen 71 illustrated in FIG. 17 is a typical display
screen 71 displayed during generation of a drawing
component. The user selects an element such as a line, a
polyline, a rectangle, or a text from the left pane, i.e.,
area, illustrated in FIG. 17, and places the element on the
25 center pane. In FIG. 17, the right pane displays the
property list of the element selected by the user.
[0029] When a drawing component is to be generated using
the element selected by the user, the reception unit 203
generates an input screen that displays entries for
30 information for use in generation of the drawing component,
based on the train display definition held by the train
display definition holding unit 201 and on the device
layout definition held by the device layout definition
20
holding unit 202. The reception unit 203 displays the
input screen generated, on the display unit 204, thus to
present the input screen to the user. FIG. 18 is a diagram
illustrating an example of the input screen displayed on
5 the display unit 204 by the reception unit 203 of the
drawing component generation device 200 according to the
first embodiment. The reception unit 203 displays, on the
display unit 204, and thus presents to the user, the input
screen, i.e., an entry of “car” to specify the car(s)
10 including the device(s) to be displayed in that drawing
component; an entry of “number of devices” to indicate the
number of devices installed in each of the car(s) specified
above; an entry of “layout scheme” to indicate the layout
pattern of the devices; an entry of “drawing component
15 number”, which is identification information for
identifying the drawing component; and an entry of “first
item number” to specify the first number of the item
numbers identifying the status displayed in that drawing
component, as the entries for information for use in
20 generation of that drawing component. The reception unit
203 receives an input of information for each entry from
the user via the input screen displayed on the display unit
204. The reception unit 203 outputs the information input
from the user, i.e., input information, to the generation
25 unit 205.
[0030] The display unit 204 displays the input screen
generated by the reception unit 203. The display unit 204
may display the drawing component generated by the
generation unit 205 described later. Note that in a case
30 in which the drawing component generation device 200 is
capable of displaying the display content on another device
such as the train cab display device 100 or a personal
computer, the drawing component generation device 200 may
21
be configured not to include the display unit 204.
[0031] The generation unit 205 generates a drawing
component based on the train display definition held by the
train display definition holding unit 201, on the device
5 layout definition held by the device layout definition
holding unit 202, on the input information having been
input from the user on the reception unit 203, and on a
display pattern definition that defines the display content
relating to the statuses of devices. A detailed operation
10 of the generation unit 205 will be described later. The
generation unit 205 stores the drawing component generated,
in the storage unit 207.
[0032] When the reception unit 203 receives input
information different from the input information received
15 upon generation with respect to a drawing component stored
in the storage unit 207, the modification unit 206 modifies
the drawing component associated with the input information
received and stored in the storage unit 207. The
modification unit 206 stores the drawing component modified,
20 in the storage unit 207.
[0033] The storage unit 207 stores the drawing component
generated by the generation unit 205 and the drawing
component modified by the modification unit 206.
[0034] The output unit 208 outputs the drawing component
25 stored in the storage unit 207 to a drawing component
holding unit 24 included in the train cab display device
100.
[0035] An operation of the generation unit 205 will now
be described in detail. The display pattern definition
30 held by the generation unit 205 is a definition of display
content dependent on the statuses of respective devices
obtained by the train cab display device 100. The display
pattern definition is set in advance by the user in the
22
generation unit 205 of the drawing component generation
device 200. Note that the generation unit 205 may store in
advance the display pattern definition in the storage unit
207.
5 [0036] The types of the display pattern definition
include a color pattern, an image pattern, a text pattern,
and the like. FIG. 19 is a diagram illustrating an example
of color patterns held by the generation unit 205 of the
drawing component generation device 200 according to the
10 first embodiment. The display content, i.e., a set of
colors, is defined therein for each color pattern with
respect to the drawing data that indicates the status of a
device obtained by the train cab display device 100. For
example, it is indicated that when color pattern 1 is set,
15 a drawing data value of 2 causes the portion corresponding
to the applicable device in the drawing component to be
displayed in red. The generation unit 205 is capable of
generating a drawing component that allows the train cab
display device 100 to provide a display in a display color
20 dependent on the status of a device based on one of the
color patterns included in the display pattern definition.
That is, the generation unit 205 generates a drawing
component that is set with display colors dependent on the
respective statuses of devices.
25 [0037] FIG. 20 is a diagram illustrating an example of
image pattern held by the generation unit 205 of the
drawing component generation device 200 according to the
first embodiment. The display content, i.e., a set of
images, is defined therein for each image pattern with
30 respect to the drawing data that indicates the status of a
device obtained by the train cab display device 100. For
example, it is indicated that when image pattern 1 is set,
a drawing data value of 1 causes a left arrow to be
23
displayed in the portion corresponding to the applicable
device in the drawing component. The generation unit 205
is capable of generating a drawing component that allows
the train cab display device 100 to display a display image
5 dependent on the status of a device based on the image
pattern included in the display pattern definition. That
is, the generation unit 205 generates a drawing component
that is set with a display image dependent on the status of
device.
10 [0038] FIG. 21 is a diagram illustrating an example of
text patterns held by the generation unit 205 of the
drawing component generation device 200 according to the
first embodiment. The display content, i.e., a set of
texts, is defined therein for each text pattern with
15 respect to the drawing data that indicates the status of a
device obtained by the train cab display device 100. For
example, it is indicated that when text pattern 1 is set, a
drawing data value of 1 causes a text of “OK” to be
displayed in the portion corresponding to the applicable
20 device in the drawing component. The generation unit 205
is capable of generating a drawing component that allows
the train cab display device 100 to display a displayed
text dependent on the status of a device based on one of
the text patterns included in the display pattern
25 definition. That is, the generation unit 205 generates a
drawing component that is set with displayed texts
dependent on the respective statuses of devices.
[0039] FIG. 22 is a diagram illustrating a first example
of drawing component generated by the drawing component
30 generation device 200 according to the first embodiment.
For example, upon reception of a request for “device
assignment” through a user operation such as a double click
ora right click for the element selected in the display
24
screen 71 illustrated in FIG. 17 described above (FIG.
22(a)), the reception unit 203 displays the input screen
illustrated in FIG. 18 on the display unit 204. The
reception unit 203 outputs the input information input from
5 the user through the input screen illustrated in FIG. 22(b),
to the generation unit 205. The generation unit 205
generates the drawing component illustrated in FIG. 22(c)
based on the input information illustrated in FIG. 22(b).
The drawing component illustrated in FIG. 22(c) is a
10 drawing component that allows the statuses of twelve
respective devices to be displayed in total for the six
cars in a case in which two devices are installed in each
of the cars. As illustrated in FIG. 22(c), each device has
been set with the drawing component number, the displayed
15 car number indicating the display position of the car in
which the device is installed, and the item number, each
dependent on the input information illustrated in FIG.
22(b). The generation unit 205 copies the element selected
in the display screen 71 illustrated in FIG. 17, arranges
20 in alignment with one another the copied elements according
to the positions for the element selected in the display
screen 71 illustrated in FIG. 17, and thus generates a
drawing component including the elements each set with the
input information illustrated in FIG. 22(b). The user
25 further specifies, via the reception unit 203, the display
content presented by the display pattern definition, for
the item numbers illustrated in FIG. 22(c). The generation
unit 205 is capable of setting a display content associated
with the status of device corresponding to each item number
30 for the drawing component based on the information of the
display pattern definition received by the reception unit
203. Note that the user may specify only one display
pattern or two or more display patterns for one device,
25
i.e., for one item number.
[0040] FIG. 23 is a diagram illustrating a second
example of drawing component generated by the drawing
component generation device 200 according to the first
5 embodiment. Similarly to the foregoing case of FIG. 22,
upon reception of a request for “device assignment” for the
element selected (FIG. 23(a)), the reception unit 203
displays the input screen illustrated in FIG. 18 on the
display unit 204. The reception unit 203 outputs the input
10 information input from the user through the input screen
illustrated in FIG. 23(b), to the generation unit 205. The
generation unit 205 generates the drawing component
illustrated in FIG. 23(c) based on the input information
illustrated in FIG. 23(b). The drawing component
15 illustrated in FIG. 23(c) is a drawing component that
allows the statuses of two respective devices to be
displayed in total for two cars in a case in which one
device is installed in two cars specified. The drawing
component illustrated in FIG. 23(c) specifies, for example,
20 the leading and last cars of the train, and is thus used to
display the travel direction of the train.
[0041] FIG. 24 is a diagram illustrating a third example
of drawing component generated by the drawing component
generation device 200 according to the first embodiment.
25 Similarly to the foregoing case of FIG. 22, upon reception
of a request for “device assignment” for the element
selected (FIG. 24(a)), the reception unit 203 displays the
input screen illustrated in FIG. 18 on the display unit 204.
The reception unit 203 outputs the input information input
30 from the user through the input screen illustrated in FIG.
24(b), to the generation unit 205. The generation unit 205
obtains train formation information from the train display
definition holding unit 201, and generates the drawing
26
component illustrated in FIG. 24(c) based on the input
information illustrated in FIG. 24(b). The drawing
component illustrated in FIG. 24(c) is a drawing component
that allows the statuses of 24 respective devices to be
5 displayed in total for the six cars in a case in which four
devices are installed in one car. The drawing component
illustrated in FIG. 24(c) is used, for example, to display
the statuses of the doors installed in each of the cars of
the train.
10 [0042] A case of generation of each of the drawing
components illustrated in FIG. 3 will now be specifically
described. FIG. 25 is a diagram illustrating drawing
component 1 generated by the generation unit 205 of the
drawing component generation device 200 according to the
15 first embodiment. The illustration in FIG. 25 assumes a
drawing component for displaying whether there is a fault
in a car and the travel direction of the train. The
generation unit 205 can generate drawing component 1
illustrated in FIG. 25 by using the input information when
20 the number of devices in the foregoing input screen of FIG.
22(b) is “1”, and using the foregoing input information of
FIG. 23(b). FIG. 26 is a diagram illustrating an example
of display pattern definition assigned to drawing component
1 to be generated by the generation unit 205 of the drawing
25 component generation device 200 according to the first
embodiment. The user assigns at least one display pattern
defined in the display pattern definition to each item
number. The generation unit 205 receives, via the
reception unit 203, setting relating to the display pattern
30 definition from the user. FIG. 26 illustrates an example
in which color pattern 1 is assigned to item number 0, and
image pattern 1 is assigned to item number 1. Note that it
is sufficient that a display pattern be assigned to each
27
item number of drawing component 1, and the user does not
need to set an item name. This also applies throughout the
following description. In addition, item number 0 has no
setting of text pattern or image pattern, and item number 1
5 has no setting of color pattern or text pattern. In this
case, a value “0” may be input thereto which indicates no
setting. This also applies throughout the following
description. In a case in which the drawing data
illustrated in FIG. 5 is obtained, the train cab display
10 device 100 can provide the display as illustrated in FIG.
25 using drawing component 1. Specifically, in FIG. 25,
the train cab display device 100 displays the cars M001,
M002, M004, and M005 having no fault in green, and displays
the cars M003 and M006 having a fault in red. In addition,
15 in FIG. 25, the train cab display device 100 displays a
left arrow indicating the travel direction of the train, on
the left side of the car M001.
[0043] FIG. 27 is a diagram illustrating drawing
component 2 generated by the generation unit 205 of the
20 drawing component generation device 200 according to the
first embodiment. The illustration in FIG. 27 assumes a
drawing component for displaying the statuses of the doors
in each of the cars. The generation unit 205 can generate
drawing component 2 illustrated in FIG. 27 by using the
25 foregoing input information of FIG. 24(b). FIG. 28 is a
diagram illustrating an example of display pattern
definition assigned to drawing component 2 to be generated
by the generation unit 205 of the drawing component
generation device 200 according to the first embodiment.
30 The user assigns at least one display pattern defined in
the display pattern definition to each item number. The
generation unit 205 receives, via the reception unit 203,
setting relating to the display pattern definition from the
28
user. FIG. 28 illustrates an example in which color
pattern 3 is assigned to item numbers 1 to 4. In a case in
which the drawing data illustrated in FIG. 7 is obtained,
the train cab display device 100 can provide the display as
5 illustrated in FIG. 27 using drawing component 2.
Specifically, in FIG. 27, the train cab display device 100
displays the door indicated by L2 of displayed car number 1
and the door indicated by R1 of displayed car number 2 in
red, displays the door indicated by R1 of displayed car
10 number 4 in yellow, and displays the other doors in green.
[0044] FIG. 29 is a diagram illustrating drawing
component 3 generated by the generation unit 205 of the
drawing component generation device 200 according to the
first embodiment. The illustration in FIG. 29 assumes a
15 drawing component for displaying the statuses of the brakes,
of the tractions, and of the HVACs installed in the cars.
The generation unit 205 can generate drawing component 3
illustrated in FIG. 29 by using the input information when
the number of devices is “3” and the layout scheme is
20 “ascending order, vertical arrangement” in the foregoing
input screen illustrated in FIG. 22(b). FIG. 30 is a
diagram illustrating an example of display pattern
definition assigned to drawing component 3 to be generated
by the generation unit 205 of the drawing component
25 generation device 200 according to the first embodiment.
The user assigns at least one display pattern defined in
the display pattern definition to each item number. The
generation unit 205 receives, via the reception unit 203,
setting relating to the display pattern definition from the
30 user. FIG. 30 illustrates an example in which color
pattern 4 and text pattern 1 are assigned to item number 0,
color pattern 5 and text pattern 2 are assigned to item
number 1, and color pattern 6 and text pattern 3 are
29
assigned to item number 2. In a case in which the drawing
data illustrated in FIG. 9 is obtained, the train cab
display device 100 can provide the display as illustrated
in FIG. 29 using drawing component 3. Specifically, in FIG.
5 29, the train cab display device 100 displays the device
representing the brake in the car M001 in yellow with a
text of ISOLATE, and displays the devices representing the
respective brakes in the cars M003 and M005 in white with a
text of OK.
10 [0045] The reception unit 203 may display the entries
for the display pattern definition in the input screen to
receive the setting relating to the display pattern
definition through the input screen. FIG. 31 is a diagram
illustrating another example of the input screen displayed
15 on the display unit 204 by the reception unit 203 of the
drawing component generation device 200 according to the
first embodiment. The reception unit 203 includes the
received information about the display pattern definition
into the input information, and outputs the input
20 information to the generation unit 205. The reception unit
203 may display the input screen that allows display
pattern setting to be received on a per-device basis, that
is, on a per-item number basis, in a case in which a
different display pattern needs to be set for a different
25 device.
[0046] An operation of the drawing component generation
device 200 will now be described with reference to a
flowchart. FIG. 32 is a flowchart illustrating an
operation of generating a drawing component performed by
30 the drawing component generation device 200 according to
the first embodiment. In the drawing component generation
device 200, the generation unit 205 receives, via the
reception unit 203, a selection of an element that will
30
constitute a drawing component (step S1). Upon reception
of a request for “device assignment”, the reception unit
203 displays, on the display unit 204, an input screen for
receiving information necessary for generating the drawing
5 component from the user, based on the train display
definition held by the train display definition holding
unit 201 and on the device layout definition held by the
device layout definition holding unit 202 (step S2). The
reception unit 203 receives the input information from the
10 user via the input screen (step S3). The reception unit
203 outputs the input information received, to the
generation unit 205. The generation unit 205 generates the
drawing component based on the train display definition
held by the train display definition holding unit 201, on
15 the device layout definition held by the device layout
definition holding unit 202, on the input information
having been input from the user via the reception unit 203,
and on the display pattern definition that defines the
display content relating to the statuses of devices (step
20 S4). The generation unit 205 stores the drawing component
generated, in the storage unit 207 (step S5). The output
unit 208 outputs the drawing component stored in the
storage unit 207 to the train cab display device 100 (step
S6).
25 [0047] A hardware configuration of the drawing component
generation device 200 will next be described. In the
drawing component generation device 200, the train display
definition holding unit 201, the device layout definition
holding unit 202, and the storage unit 207 are a memory.
30 The functionality of the reception unit 203 to receive an
input from a user is implemented by an input interface such
as a button, a keyboard, or a mouse. The display unit 204
is a monitor such as a liquid crystal display (LCD). The
31
functionality of the reception unit 203 to provide a
display on the display unit 204, and the generation unit
205, the modification unit 206, and the output unit 208 are
implemented in processing circuitry. The processing
5 circuitry may be a combination of a processor that executes
a program stored in a memory and the memory, or a dedicated
hardware element.
[0048] FIG. 33 is a diagram illustrating an example of a
case in which a processor and a memory constitute the
10 processing circuitry included in the drawing component
generation device 200 according to the first embodiment.
In a case in which the processing circuitry includes a
processor 91 and a memory 92, each functionality of the
processing circuitry of the drawing component generation
15 device 200 is implemented in software, firmware, or a
combination of software and firmware. The software or
firmware is described as a program or programs, and is
stored in the memory 92. In the processing circuitry, the
processor 91 reads and executes a program stored in the
20 memory 92 to implement each functionality. That is, the
processing circuitry includes the memory 92 for storing
programs that cause the processing of the drawing component
generation device 200 to be performed. It can also be said
that these programs cause a computer to perform the
25 procedure and the method of the drawing component
generation device 200.
[0049] In this regard, the processor 91 may be a central
processing unit (CPU), a processing unit, a computing unit,
a microprocessor, a microcomputer, a digital signal
30 processor (DSP), or the like. In addition, the memory 92
is, for example, a non-volatile or volatile semiconductor
memory such as a random access memory (RAM), a read-only
memory (ROM), a flash memory, an erasable programmable ROM
32
(EPROM), an electrically EPROM (EEPROM) (registered
trademark); a magnetic disk, a flexible disk, an optical
disk, a compact disc, a MiniDisc, a digital versatile disc
(DVD), or the like.
5 [0050] FIG. 34 is a diagram illustrating an example of a
case in which a dedicated hardware element implements the
processing circuitry included in the drawing component
generation device 200 according to the first embodiment.
In a case in which the processing circuitry includes a
10 dedicated hardware element, a processing circuitry 93
illustrated in FIG. 34 is, for example, a single circuit, a
set of multiple circuits, a programmed processor, a set of
programmed parallel processors, an application specific
integrated circuit (ASIC), a field programmable gate array
15 (FPGA), or a combination thereof. The functionality of the
drawing component generation device 200 may be implemented
in the circuitry 93 on a function-by-function basis, or be
implemented in the processing circuitry 93 collectively as
a whole.
20 [0051] Note that the functionality of the drawing
component generation device 200 may be implemented partly
in the dedicated hardware element, and partly in software
or firmware. Thus, the processing circuitry can provide
the functionality described above by a dedicated hardware,
25 software, firmware, or a combination thereof.
[0052] The drawing component generation device 200 may
also be configured such that the reception unit 203 only
includes the input interface for receiving an input from
the user, whereas the functionality to display the input
30 screen and the like on the display unit 204 is provided in
the generation unit 205.
[0053] As described above, according to the present
embodiment, the drawing component generation device 200
33
provide an input screen that displays entries for
information for use in generation of a drawing component,
and generates the drawing component based on a train
display definition, on a device layout definition, on input
5 information having been input from the user, and on a
display pattern definition in a case in which the drawing
component is generated using an element selected by the
user. This enables the drawing component generation device
200 to generate a drawing component with a reduced amount
10 of user operation, i.e., of task of inputting by the user.
[0054] Second Embodiment.
A second embodiment will be described in the context
of an operation in which the train cab display device 100
displays the statuses of devices installed in cars of a
15 train using the drawing components generated by the drawing
component generation device 200 in the display system 300.
[0055] FIG. 35 is a block diagram illustrating an
example configuration of the display system 300 including
the train cab display device 100 according to the second
20 embodiment. FIG. 35 also illustrates the drawing component
generation device 200 connected to the train cab display
device 100. The train cab display device 100 includes an
input device 10, a drawing processing unit 20, a data
collection unit 30, a train formation information providing
25 unit 40, an on-board information transmission unit 50, an
on-board information providing unit 60, and an output
device 70.
[0056] The input device 10 receives event information,
for example, a request for displaying the statuses of
30 devices, from a user such as the driver. The input device
10 is, for example, a switch, but may also be a keyboard, a
mouse, or the like. Alternatively, the input device 10 may
constitute a touch panel together with the output device 70.
34
[0057] The data collection unit 30 includes a signal
mapping management unit 31, a train information collection
unit 32, a signal definition holding unit 33, a signal
mapping generation unit 34, and a signal data storage unit
5 35.
[0058] The signal mapping management unit 31 obtains
formation information, including information on the number
of cars and on the travel direction of the train, from the
train information collection unit 32. In addition, the
10 signal mapping management unit 31 generates a first signal
based on a signal definition and on the formation
information obtained, and outputs the first signal
generated, to the train information collection unit 32 to
request information on the status of a device from the
15 train information collection unit 32. The signal
definition is a basis for the first signal that requests
information on the status of a device installed in a car,
and is being held by the signal definition holding unit 33.
Moreover, the signal mapping management unit 31 outputs the
20 formation information obtained, to the signal mapping
generation unit 34. The signal mapping management unit 31
also outputs the number of cars, i.e., number-of-cars
information, to the signal data storage unit 35.
[0059] Upon obtaining the formation information of the
25 train from the train formation information providing unit
40, the train information collection unit 32 outputs the
formation information obtained, to the signal mapping
management unit 31. The train information collection unit
32 may obtain the formation information by requesting the
30 formation information from the train formation information
providing unit 40 in response to a request from the signal
mapping management unit 31, or may obtain the formation
information by periodically requesting the formation
35
information from the train formation information providing
unit 40. In addition, upon reception of the first signal
from the signal mapping management unit 31, the train
information collection unit 32 requests information on the
5 status of a device corresponding to the first signal from
the on-board information providing unit 60. The train
information collection unit 32 obtains a second signal,
which is a response to the first signal, from the on-board
information providing unit 60. The train information
10 collection unit 32 outputs the value of the second signal
obtained from the on-board information providing unit 60 to
the signal data storage unit 35. The value of the second
signal is information on the status of a device installed
in that car and in another car.
15 [0060] The signal definition holding unit 33 holds the
signal definition that is a basis for the first signal that
requests information on the status of a device installed in
a car. It is assumed that the signal definition is set in
advance by train traffic management personnel or the like,
20 and is stored in the signal definition holding unit 33 in a
manner associated with the items of the status of device to
be displayed by the drawing processing unit 20 on the
output device 70.
[0061] The signal mapping generation unit 34 generates
25 signal mapping information based on the formation
information obtained from the signal mapping management
unit 31, and outputs the signal mapping information to the
signal data storage unit 35. The signal mapping
information is information specifying the arrangement of
30 the cars on the display screen 71 of the output device 70,
on which the drawing processing unit 20 displays the
statuses of devices. The signal mapping information
specifically indicates which one of the leading car and the
36
last car of the cars in the train composition is displayed
on which side, e.g., on the left side or on the right side,
of the display screen 71.
[0062] The signal data storage unit 35 holds the value
5 of the second signal obtained from the train information
collection unit 32 in relation to a request from the signal
mapping management unit 31. The signal data storage unit
35 controls the storing position of the value of the second
signal in the drawing processing unit 20, more specifically,
10 in a drawing data holding unit 22 described later, based on
the signal mapping information obtained from the signal
mapping generation unit 34 to store the value of the second
signal in the drawing data holding unit 22.
[0063] The drawing processing unit 20 includes an event
15 reception unit 21, the drawing data holding unit 22, a
drawing process execution unit 23, and the drawing
component holding unit 24.
[0064] The event reception unit 21 outputs event
information received from the user through the input device
20 10 to the data collection unit 30.
[0065] The drawing data holding unit 22 holds the
drawing data, which is the value of the second signal
stored by the data collection unit 30, in the drawing table
of each of the drawing components, which are modularized
25 parts of display content to be displayed on the display
screen 71, based on the drawing components held by the
drawing component holding unit 24. The drawing tables are
specifically the drawing tables 22a to 22c described in the
first embodiment.
30 [0066] The drawing process execution unit 23 displays
the statuses of devices on the display screen 71 of the
output device 70 using the multiple drawing components
based on the drawing components held by the drawing
37
component holding unit 24 and on the drawing data held in
the drawing tables in the drawing data holding unit 22.
[0067] The drawing component holding unit 24 holds the
drawing components generated by the drawing component
5 generation device 200.
[0068] The train formation information providing unit 40
outputs the formation information to the train information
collection unit 32 in response to a request from the train
information collection unit 32. Note that the on-board
10 information transmission unit 50 is installed in each of
the cars constituting a train. The train formation
information providing unit 40 can be aware of the number of
the on-board information transmission units 50 on the train,
i.e., the number of cars of the train, from the contents of
15 the respective signals from the on-board information
transmission units 50 installed in the other cars, obtained
from the on-board information transmission unit 50. In
addition, by outputting of the use status of the cab and/or
the like by the on-board information transmission unit 50
20 installed in the leading car in the travel direction of the
train to the on-board information transmission units 50 of
the other cars, the train formation information providing
unit 40 that has received the information on the use status
of the cab via the on-board information transmission unit
25 50 can be aware of the travel direction of the train. The
train formation information providing unit 40 generates
formation information including information on the number
of cars and the travel direction of the train, and outputs
the formation information to the train information
30 collection unit 32.
[0069] The on-board information transmission unit 50
obtains information on the statuses of devices installed in
another car, and the like, via the on-board information
38
transmission unit 50 installed in the other car, of those
installed in the respective cars constituting the train.
The on-board information transmission unit 50 also obtains
information on the statuses of devices installed in that
5 car, and the like. In addition, the on-board information
transmission unit 50 outputs the information on the
statuses of devices installed in that car, and the like, to
the on-board information transmission unit 50 installed in
another car.
10 [0070] The on-board information providing unit 60
obtains the second signal, which is information on the
status of a device installed in that car or in another car
corresponding to the first signal, via the on-board
information transmission unit 50 upon reception of the
15 first signal from the train information collection unit 32,
and outputs the second signal to the train information
collection unit 32. The on-board information providing
unit 60 performs a similar process on all the first signals
to obtain a second signal corresponding to the first signal
20 and to output the second signal to the train information
collection unit 32.
[0071] The output device 70 is a display unit to display
the statuses of devices on the display screen 71 under
control of the drawing process execution unit 23 of the
25 drawing processing unit 20. The output device 70 is, for
example, a monitor including an LCD or the like.
Alternatively, the output device 70 may constitute a touch
panel together with the input device 10 as described above.
[0072] The train cab display device 100 performs a
30 drawing process using multiple drawing components, each of
which is a modularized part of display content to be
displayed on the display screen 71, to display the statuses
of devices on the display screen 71 of the output device 70.
39
[0073] As illustrated in FIG. 2, the train cab display
device 100 displays six cars corresponding to the train
formation with an arrow indicating the travel direction on
the display screen 71 of the output device 70. The train
5 cab display device 100 also displays the open-close
statuses of the doors installed in each of the cars, as the
statuses of devices, on the display screen 71 of the output
device 70. The train cab display device 100 further
displays the use status, the fault status, or the like of
10 each of the brakes, the tractions, and the HVACs, as the
statuses of devices, on the display screen 71 of the output
device 70.
[0074] In the train cab display device 100, the drawing
processing unit 20 provides display control to modularize
15 the display screen 71 illustrated in FIG. 2 into multiple
drawing components illustrated in FIG. 3 rather than
displaying as an integrated unit. As illustrated in FIG. 3,
the content displayed on the display screen 71 is
modularized such that a set of drawing of the train
20 formation having six cars forms one drawing component, that
is, modularized on a per-train basis.
[0075] The drawing data holding unit 22 of the drawing
processing unit 20 holds the drawing data in tabular form
having rows corresponding to respective cars and columns
25 corresponding to respective car properties on a per-drawing
component basis. The drawing process execution unit 23
performs a drawing process based on the drawing data held
by the drawing data holding unit 22, and provides a display
on the display screen 71 as illustrated in FIGS. 2 and 3.
30 [0076] To allow the drawing data holding unit 22 to hold
the drawing data in tabular form on a per-drawing component
basis, the signal definition holding unit 33 of the data
collection unit 30 is configured to assign a signal to a
40
drawing component on a per-car property basis, that is, to
provide a definition of signal information on a per-column
basis in each drawing table. Note that the number of
columns, i.e., the number of cars, is determined by the
5 formation information of the train obtained by the data
collection unit 30. To obtain the second signal necessary
for storing the drawing data in the drawing table for each
drawing component, the signal mapping management unit 31
generates a first signal for each of the cars using the
10 signal definition for each of the car properties, i.e., for
each column of a drawing table. For example, to obtain the
drawing data necessary for the drawing table corresponding
to drawing component 3 illustrated in FIG. 3, the signal
mapping management unit 31 generates a first signal for
15 obtaining the second signal for the brakes, for the
tractions, and for the HVACs of the six cars.
[0077] In addition, when the train cab display device
100 is installed in each of the leading car of the train
where the driver resides and the last car of the train
20 where the conductor resides, a different display pattern,
i.e., a different arrangement of the cars, may be displayed
in a different car. One example is that the train cab
display device 100 displays the car in which that train cab
display device 100 is installed on the left side of the
25 display screen 71, in each of the leading car and the last
car. In this case, although the information itself on the
statuses of respective devices displayed on the display
screen 71 of the train cab display device 100 is the same
for the leading car and the last car, the display in the
30 leading car and the display in the last car will be in a
mutually laterally inverted configuration. In the context
of the example of FIGS. 2 and 3, the train cab display
device 100 in the leading car where the driver resides
41
provides a display in the orientation illustrated in FIGS.
2 and 3, that is, displays the car indicated as “M001” on
the left side. In contrast, the train cab display device
100 in the last car where the conductor resides provides a
5 display in the orientation opposite the orientation in FIGS.
2 and 3, that is, displays the car indicated as “M006” on
the left side.
[0078] The train cab display device 100 in the leading
car and the train cab display device 100 in the last car on
10 the same train obtain the same second signals, and hold the
values of the respective second signals in the same
arrangement up to the signal data storage unit 35. However,
the signal data storage unit 35 of one of the train cab
display devices 100 stores the values of the second signals
15 in the drawing data holding unit 22 without changing the
arrangement, whereas the signal data storage unit 35 of the
other one of the train cab display devices 100 stores the
values of the second signals in the drawing data holding
unit 22 after changing the arrangement. The phrase
20 “changing the arrangement” means that when the signal data
storage unit 35 of the other one of the train cab display
devices 100 is holding, for example, the value of the
second signal of each device in an arrangement in order of
the cars M001, M002, …, and M006 from left to right, the
25 arrangement is changed to be in order of the cars M006,
M005, …, and M001 from left to right, and the value of the
second signal of each device is then stored in the drawing
data holding unit 22.
[0079] In the train cab display device 100, the signal
30 mapping generation unit 34 generates, based on the
formation information of the train, signal mapping
information, which is mapping information indicating
whether to change the arrangement upon storing of the
42
second signal obtained from the device to be displayed, in
a table of the drawing data holding unit 22. The signal
data storage unit 35 stores the value of the second signal
obtained from the train information collection unit 32 in
5 the drawing data holding unit 22, based on the signal
mapping information.
[0080] The signal definition held by the signal
definition holding unit 33, the first signal generated by
the signal mapping management unit 31, and the value of the
10 second signal stored in the drawing data holding unit 22
will now be described. FIG. 36 is a diagram illustrating
an example of signal definition held for drawing component
2 by the signal definition holding unit 33 of the train cab
display device 100 according to the second embodiment. The
15 signal mapping management unit 31 obtains the second signal
with respect to the number of cars from the train formation
information providing unit 40 via the train information
collection unit 32. The example of FIG. 36 illustrates
that the signal mapping management unit 31 uses the signal
20 definition of “door[1].R1” to generate the first signal for
obtaining the information on the status of the door R1 from
each car. The signal mapping management unit 31 knows that
the train has a six-car formation from information on the
number of cars of the train as described above. To obtain
25 the second signal for the door R1 of the car M001 from the
on-board information providing unit 60 via the train
information collection unit 32, the signal mapping
management unit 31 generate a signal of “car[1].door[1].R1”
as the first signal. The signal mapping management unit 31
30 outputs the first signal generated, to the train
information collection unit 32 to request information on
the status of the door R1 of the car M001 from the train
information collection unit 32. Upon reception of the
43
first signal from the signal mapping management unit 31,
the train information collection unit 32 obtains
information on the door R1 of the car M001 from the onboard
information providing unit 60, and outputs the
5 information on the door R1 of the car M001 to the signal
data storage unit 35 as the second signal, which is the
response to the first signal.
[0081] The signal data storage unit 35 receives a signal
of “car[1].door[1].R1”, i.e., the second signal being the
10 response to the first signal, from the train information
collection unit 32, and holds the value of the second
signal. The data collection unit 30 of the train cab
display device 100 also obtains information on the statuses
of the door R2, of the door L1, and of the door L2 in a
15 similar manner, and holds the information in the signal
data storage unit 35 as the values of the second signals.
The first signal is represented such that, for example, the
first signal for the door R2 of the car M001 is expressed
as “car[1].door[2].R2”, and the first signal for the door
20 R1 of the car M002 is expressed as “car[2].door[1].R1”.
The signal mapping management unit 31 uses the number
corresponding to the car number in car[] to generate a
different first signal for the doors in a different car.
The signal mapping management unit 31 generates 24 first
25 signals to obtain information on the statuses of the four
doors from the six cars.
[0082] FIG. 37 is a diagram illustrating an example of
storage method when the signal data storage unit 35 stores
values of the second signals for drawing component 2 in the
30 drawing table 22b of the drawing data holding unit 22 in
the train cab display device 100 according to the second
embodiment. In a case in which the orientation of the
train is the same as the orientation on the display, the
44
signal data storage unit 35 stores the signal data (FIG.
37(a)) stored in the signal data storage unit 35 in the
drawing table 22b of the drawing data holding unit 22
without changing the order (FIG. 37(b)). For example, the
5 signal data storage unit 35 stores the signal data for car
1 in the column for the displayed car number 1 in the
drawing table 22b of the drawing data holding unit 22, and
stores the signal data for car 6 in the column for the
displayed car number 6 in the drawing table 22b of the
10 drawing data holding unit 22. The drawing process
execution unit 23 can display a drawing component having
the display content illustrated in FIG. 6 on the display
screen 71 of the output device 70 by using the drawing data
having the content of FIG. 37(b) held in the drawing table
15 of the drawing data holding unit 22.
[0083] In contrast, in a case in which the orientation
of the train differs from the orientation on the display,
the signal data storage unit 35 stores the signal data (FIG.
37(a)) stored in the signal data storage unit 35 in the
20 drawing table 22b of the drawing data holding unit 22 after
reversing the order (FIG. 37(c)). For example, the signal
data storage unit 35 stores the signal data for car 1 in
the column for the displayed car number 6 in the drawing
table 22b of the drawing data holding unit 22, and stores
25 the signal data for car 6 in the column for the displayed
car number 1 in the drawing table 22b of the drawing data
holding unit 22. FIG. 38 is a diagram illustrating another
example of drawing component 2 displayed by the train cab
display device 100 according to the second embodiment. The
30 train illustrated in FIG. 38 differs from the train
illustrated in FIG. 6 in the direction by 180 degrees. The
drawing process execution unit 23 can display a drawing
component having the display content illustrated in FIG. 38
45
on the display screen 71 of the output device 70 by using
the drawing data having the content of FIG. 37(c) held in
the drawing table of the drawing data holding unit 22.
[0084] An operation has been described in which the
5 train cab display device 100 provides a display on the
display screen 71 of the output device 70 using drawing
component 2. However, this is merely an example, and the
train cab display device 100 can provide a display on the
display screen 71 of the output device 70 using drawing
10 component 1 and drawing component 3 using similar
operations.
[0085] An operation up to displaying the statuses of
devices installed in each of the cars of the train on the
display screen 71 of the output device 70 in the train cab
15 display device 100 will be described with reference to a
flowchart. FIG. 39 is a flowchart illustrating an
operation of displaying the statuses of devices installed
in each of the cars of the train performed by the train cab
display device 100 according to the second embodiment.
20 First, in the train cab display device 100, the input
device 10 receives a request for displaying the statuses of
devices from outside the train cab display device 100, for
example, from the user (step S11). The input device 10
outputs information on the event of the request for
25 displaying the statuses of devices to the event reception
unit 21. The event reception unit 21 outputs the
information on the event of the request for displaying the
statuses of devices to the signal mapping management unit
31.
30 [0086] Upon reception of the information on the event of
the request for displaying the statuses of devices, the
signal mapping management unit 31 obtains the formation
information of the train from the train formation
46
information providing unit 40 via the train information
collection unit 32 as described above (step S12).
[0087] The signal mapping management unit 31 generates
first signals based on the signal definition held by the
5 signal definition holding unit 33 and on the formation
information received, and outputs the first signals to the
train information collection unit 32 to request information
on the statuses of devices installed in each of the cars
from the train information collection unit 32 (step S13).
10 The signal mapping management unit 31 may generate the
first signals by obtaining the formation information in
response to reception of a request for displaying the
statuses of devices from outside, i.e., through the input
device 10 via the event reception unit 21, or may generate
15 the first signals upon a change in the formation
information in a case of periodic reception of the
formation information from the train formation information
providing unit 40 via the train information collection unit
32.
20 [0088] The train information collection unit 32 requests
information on the statuses of devices installed in each of
the cars from the on-board information providing unit 60,
and obtains information on the statuses of devices
installed in each of the cars from the on-board information
25 providing unit 60. The train information collection unit
32 outputs values of second signals, which are information
on the statuses of devices installed in each of the cars,
to the signal data storage unit 35. The signal data
storage unit 35 holds the values of the second signals
30 received (step S14).
[0089] Meanwhile, the signal mapping management unit 31
outputs the formation information to the signal mapping
generation unit 34. The signal mapping generation unit 34
47
generates, based on the formation information, signal
mapping information specifying the arrangement of the cars
on the display screen 71 that displays the statuses of
devices (step S15). The signal mapping generation unit 34
5 outputs the signal mapping information generated, to the
signal data storage unit 35.
[0090] The signal data storage unit 35 controls the
storing positions of the respective values of the second
signals in the drawing data holding unit 22 based on the
10 signal mapping information generated by the signal mapping
generation unit 34, and stores the values of the second
signals in the drawing data holding unit 22 (step S16).
[0091] The drawing process execution unit 23 then
displays the statuses of devices on the display screen 71
15 of the output device 70 using multiple drawing components
based on the drawing data held in the drawing tables in the
drawing data holding unit 22 (step S17).
[0092] A hardware configuration of the train cab display
device 100 will next be described. In the train cab
20 display device 100, the input device 10 and the output
device 70 are implemented by a touch panel. The on-board
information transmission unit 50 is implemented in an
interface circuit communicable with the on-board
information transmission unit 50 on another car. The
25 drawing processing unit 20, the data collection unit 30,
the train formation information providing unit 40, and the
on-board information providing unit 60 are implemented in
processing circuitry. The processing circuitry of the
train cab display device 100 is implemented in a
30 configuration similar to the foregoing configuration of the
processing circuitry of the drawing component generation
device 200.
[0093] As described above, according to the present
48
embodiment, the train cab display device 100 generates a
first signal based on the signal definition, which is a
basis for the first signal that requests information on the
status of a device installed in a car, and based on the
5 formation information of the train to request information
on the status of a device, obtains the value of the second
signal, which is information on the status of the device,
controls the storing position of the value of the second
signal in the drawing data holding unit 22, and stores the
10 value of the second signal in the drawing data holding unit
22. The train cab display device 100 is capable of
displaying the statuses of devices on the display screen 71
using multiple drawing components based on drawing data
held in the drawing tables in the drawing data holding unit
15 22. The train cab display device 100 is also capable of
displaying the statuses of devices on the display screen 71
after changing the color, image, text, and/or the like
depending on the statuses of devices.
[0094] Third Embodiment.
20 In the second embodiment, one first signal corresponds
to one item of the drawing data held in the drawing data
holding unit 22. In a third embodiment, a new value of a
second signal is obtained by computation using the values
of multiple second signals obtained in response to multiple
25 first signals, and the new value of a second signal
obtained by this computation is stored in the drawing data
holding unit 22. Differences from the second embodiment
will be described.
[0095] FIG. 40 is a block diagram illustrating an
30 example configuration of a display system 300a including a
train cab display device 100a according to the third
embodiment. FIG. 40 also illustrates the drawing component
generation device 200 connected to the train cab display
49
device 100a. As illustrated in FIG. 40, the train cab
display device 100a and the drawing component generation
device 200 constitute the display system 300a. The train
cab display device 100a includes a data collection unit 30a
5 in place of the data collection unit 30 of the train cab
display device 100 of the first embodiment. The data
collection unit 30a includes a signal mapping management
unit 31a, a train information collection unit 32, a signal
definition holding unit 33a, the signal mapping generation
10 unit 34, a signal data storage unit 35a, and a signal data
computing unit 36.
[0096] The signal definition holding unit 33a also holds,
in addition to the signal definition held by the signal
definition holding unit 33, information on an arithmetic
15 expression for enabling the signal data computing unit 36
to compute a new value of a second signal using the values
of multiple second signals, and signal definition serving
as the basis for the first signals for obtaining the values
of multiple second signals described above.
20 [0097] The signal mapping management unit 31a has
functionality equivalent to the functionality of the signal
mapping management unit 31, but due to the additional
signal definition held by the signal definition holding
unit 33a, needs to perform a higher amount of process of
25 generation of the first signals than the signal mapping
management unit 31.
[0098] The signal data computing unit 36 is a computing
unit that obtains by computation the new value of a second
signal indicating one status of a specified device using
30 the values of multiple second signals.
[0099] The signal data storage unit 35a holds the new
value of a second signal in addition to the values of the
multiple second signals, and stores the new value of a
50
second signal in the drawing data holding unit 22. Due to
additional holding of the values of multiple second signals
for obtaining the new value of a second signal, the signal
data storage unit 35a has a larger area for holding the
5 second signals than the signal data storage unit 35.
[0100] In the drawing processing unit 20, the drawing
data held in a drawing table may possibly have no one-toone
correspondence with the value of a second signal
obtained by the train information collection unit 32 in the
10 process performed by the drawing process execution unit 23
to provide a display based on the drawing tables in the
drawing data holding unit 22. For example, a status of a
certain device may be derived from a combination of
multiple types of second signals. Example of the multiple
15 types of second signals include a signal indicating whether
the device is installed or not, a signal indicating whether
the status of the device is valid or not, a signal
indicating the status of the device, and the like.
Determination of a status of a device based on a
20 combination of multiple types of second signals requires a
computing process in the train cab display device 100a.
[0101] Thus, in the third embodiment, the signal
definition holding unit 33a holds signal definition serving
as the basis for the first signals for obtaining the
25 multiple second signals to obtain by computation a new
value of a second signal corresponding to an applicable
item of the drawing data, in addition to the signal
definition serving as the basis for the first signals for
obtaining the second signals corresponding to the drawing
30 data. The signal definition holding unit 33a also holds
information on the arithmetic expression for computing the
new value of a second signal using the values of multiple
second signals.
51
[0102] The signal data computing unit 36 determines the
necessity of computation based on the signal definition and
on the information on the arithmetic expression held by the
signal definition holding unit 33a, performs a computing
5 process as needed, and stores the computation result, i.e.,
the new value of a second signal, in the signal data
storage unit 35a. The signal mapping management unit 31a
outputs the signal definition and the information on the
arithmetic expression held by the signal definition holding
10 unit 33a to the signal data computing unit 36 via the
signal data storage unit 35a. Obtaining of a new value of
a second signal by computation by the signal data computing
unit 36 enables the train cab display device 100a to use,
as the drawing data, the result of computation using
15 multiple pieces of on-board information, i.e., information
on the multiple statuses of devices, in combination.
[0103] FIG. 41 is a diagram illustrating an example of
signal definition held by the signal definition holding
unit 33a of the train cab display device 100a according to
20 the third embodiment. FIG. 41 illustrates that a new value
of a second signal corresponding to an applicable item of
the drawing data is obtained by computation of the values
of two types of second signals to obtain a corresponding
piece of drawing data to be held in the drawing table 22b
25 of the drawing data holding unit 22. The example of FIG.
41 indicates that the signal definition for the travel
direction of the train is “TRAIN_DIRECTION”, and that
“TRAIN_DIRECTION” is computed using the values of two types
of second signals obtained in response to two types of
30 first signals based on two signal definitions of
“CCU[1].DriverKeyStatus” and “train.global[1].Direction”.
The definition “CCU[1].DriverKeyStatus” represents the
status of the driver key to be inserted by the train driver.
52
For example, the state in which the driver key is inserted
is represented by “1”, whereas the state in which the
driver key is not inserted is represented by “0”. The
definition “train.global[1].Direction” represents the
5 orientation of the train. For example, the case in which
the travel direction of the train is the direction of the
car having the driver key in an inserted state is
represented by “1”, whereas the case in which the travel
direction of the train is opposite to the direction of the
10 car having the driver key in an inserted state is
represented by “2”.
[0104] The signal data storage unit 35a performs
operation on the new value of a second signal obtained by
computation by the signal data computing unit 36 similarly
15 to the operation performed on the values of one type of
second signal corresponding to one item of the drawing data,
that is, similarly to the operation performed on the values
of the second signals of the second embodiment. The new
value of a second signal is also managed such that the
20 signal data storage unit 35a controls the storing position
of the value of the second signal in the drawing data
holding unit 22 based on the signal mapping information,
and stores the value of the second signal in the drawing
data holding unit 22.
25 [0105] FIG. 42 is a diagram illustrating an example of
the orientation of the train and the travel direction of
the train displayed by the train cab display device 100a
according to the third embodiment. As illustrated in
Example 1, when the car having the driver key in an
30 inserted state is car 1, and the travel direction of the
train is the direction toward car 1, “TRAIN_DIRECTION” has
a value of “1”. When the data representing the travel
direction of the train is “1”, the displayed arrow is a
53
left arrow as illustrated in FIGS. 20 and 26. Thus, the
train cab display device 100a obtains by computation a new
value of the signal representing one status of a specified
device using multiple values of respective signals
5 representing statuses of devices, and can thus provide a
display depending on the computed value obtained, using a
drawing component.
[0106] FIG. 43 is a flowchart illustrating an operation
of displaying the statuses of devices installed in each of
10 the cars of the train performed by the train cab display
device 100a according to the third embodiment. The
operation from step S11 to step S15 is similar to the
operation in the second embodiment illustrated in FIG. 39.
The signal data computing unit 36 obtains a new value of a
15 second signal using the values of multiple second signals
required of computation, of the second signals held by the
signal data storage unit 35a, based on the signal
definition and on the information on the arithmetic
expression held by the signal definition holding unit 33a
20 (step S21). The signal data computing unit 36 stores the
new value of a second signal obtained by the computation in
the signal data storage unit 35a. The operation of step
S16 and step S17 after step S21 is similar to the operation
in the second embodiment illustrated in FIG. 39.
25 [0107] A hardware configuration of the train cab display
device 100a in the third embodiment is implemented in a
configuration similar to the hardware configuration of the
train cab display device 100 in the second embodiment.
[0108] As described above, according to the present
30 embodiment, the train cab display device 100a obtains by
computation a new value of a second signal from the values
of multiple second signals, and stores the new value of a
second signal in the drawing data holding unit 22. This
54
enables the train cab display device 100a to use, as the
drawing data, the result of computation using information
on the multiple statuses of devices in combination.
[0109] The configurations described in the foregoing
5 embodiments are merely examples of various aspects of the
present invention. These configurations may be combined
with a known other technology, and moreover, a part of such
configurations may be omitted and/or modified without
departing from the spirit of the present invention.
10
Reference Signs List
[0110] 10 input device; 20 drawing processing unit; 21
event reception unit; 22 drawing data holding unit; 22a,
22b, 22c drawing table; 23 drawing process execution
15 unit; 24 drawing component holding unit; 30, 30a data
collection unit; 31, 31a signal mapping management unit;
32 train information collection unit; 33, 33a signal
definition holding unit; 34 signal mapping generation
unit; 35, 35a signal data storage unit; 36 signal data
20 computing unit; 40 train formation information providing
unit; 50 on-board information transmission unit; 60 onboard
information providing unit; 70 output device; 71
display screen; 100, 100a train cab display device; 200
drawing component generation device; 201 train display
25 definition holding unit; 202 device layout definition
holding unit; 203 reception unit; 204 display unit; 205
generation unit; 206 modification unit; 207 storage unit;
208 output unit; 300, 300a display system.
55
WE CLAIM:
1. A drawing component generation device that generates a
drawing component being a modularized part of display
content when a display device installed in a train is to
5 display a status of a device installed in a car of the
train on a display screen using the drawing component, the
drawing component generation device comprising:
a reception unit to provide an input screen displaying
entries for information for use in generation of the
10 drawing component, based on a train display definition that
defines a train formation pattern representing an
arrangement of cars in a formation of the train, and on a
device layout definition that defines a layout pattern
representing a device layout in the car, and to receive an
15 input of information for the entries from a user; and
a generation unit to generate the drawing component
based on the train display definition, on the device layout
definition, on input information being information input
from the user on the reception unit, and on a display
20 pattern definition that defines display content relating to
the status of the device.
2. The drawing component generation device according to
claim 1, wherein
25 the reception unit provides, as the entries for
information, an entry for a car including a device to be
displayed in the drawing component, an entry for a number
of devices installed in each of the cars, an entry for the
layout pattern, an entry for identification information of
30 the drawing component, and an entry for a first number of
an item number that identifies a status to be displayed in
the drawing component, and the reception unit receives an
input of information for each of the entries from the user.
56
3. The drawing component generation device according to
claim 1 or 2, wherein
the generation unit generates a drawing component that
allows a display to be provided in a display color
5 dependent on the status of the device, based on a color
pattern included in the display pattern definition.
4. The drawing component generation device according to
any one of claims 1 to 3, wherein
10 the generation unit generates a drawing component that
allows a display image to be displayed that is dependent on
the status of the device, based on an image pattern
included in the display pattern definition.
15 5. The drawing component generation device according to
any one of claims 1 to 4, wherein
the generation unit generates a drawing component that
allows a displayed text to be displayed that is dependent
on the status of the device, based on a text pattern
20 included in the display pattern definition.
6. The drawing component generation device according to
any one of claims 1 to 5, comprising:
a storage unit to store the drawing component; and
25 a modification unit to, upon reception by the
reception unit of input information different in content
from input information received upon generation with
respect to the drawing component stored in the storage unit,
modify the drawing component stored in the storage unit and
30 relating to the input information received.
7. A display system comprising:
the drawing component generation device according to
57
any one of claims 1 to 6; and
a display device to display the status of the device
installed in the car of the train using the drawing
component generated by the drawing component generation
5 device.
8. The display system according to claim 7, wherein
the display device obtains by computation a new value
of a signal indicating one status of a specified device
10 using a plurality of values of signals each representing
the status of the device, and provides a display depending
on a computed value obtained, using the drawing component.
9. A drawing component generation method performed in a
15 drawing component generation device that generates a
drawing component being a modularized part of display
content when a display device installed in a train is to
display a status of a device installed in a car of the
train on a display screen using the drawing component, the
20 drawing component generation method comprising:
a reception step of, by a reception unit, providing an
input screen displaying entries for information for use in
generation of the drawing component based on a train
display definition that defines a train formation pattern
25 representing an arrangement of cars in a formation of the
train, and on a device layout definition that defines a
layout pattern representing a device layout in the car, and
receiving an input of information for the entries from a
user; and
30 a generation step of, by a generation unit, generating
the drawing component based on the train display definition,
on the device layout definition, on input information being
information input from the user in the reception step, and
58
on a display pattern definition that defines display
content relating to the status of the device.
10. The drawing component generation method according to
5 claim 9, wherein
in the reception step, the reception unit provides, as
the entries for information, an entry for a car including a
device to be displayed in the drawing component, an entry
for a number of devices installed in each of the cars, an
10 entry for the layout pattern, an entry for identification
information of the drawing component, and an entry for a
first number of an item number that identifies a status to
be displayed in the drawing component, and the reception
unit receives an input of information for each of the
15 entries from the user.
11. The drawing component generation method according to
claim 9 or 10, wherein
in the generation step, the generation unit generates
20 a drawing component that allows a display to be provided in
a display color dependent on the status of the device,
based on a color pattern included in the display pattern
definition.
25 12. The drawing component generation method according to
any one of claims 9 to 11, wherein
in the generation step, the generation unit generates
a drawing component that allows a display image to be
displayed that is dependent on the status of the device,
30 based on an image pattern included in the display pattern
definition.
13. The drawing component generation method according to
59
any one of claims 9 to 12, wherein
in the generation step, the generation unit generates
a drawing component that allows a displayed text to be
displayed that is dependent on the status of the device,
5 based on a text pattern included in the display pattern
definition.
14. The drawing component generation method according to
any one of claims 9 to 13, comprising:
10 a modification step of, by a modification unit, upon
reception by the reception unit of input information
different in content from input information received upon
generation with respect to the drawing component stored in
a storage unit that stores the drawing component, modifying
15 the drawing component stored in the storage unit and
relating to the input information received.