FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10, Rule 13]
DATA COLLECTION DEVICE AND DATA COLLECTION 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 100-8310, JAPAN
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE
INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.
2
DESCRIPTION
5 Field
[0001] The present invention relates to a data
collection device to be installed on a train and a data
collection method.
10 Background
[0002] In a train, data indicating an operating state is
collected from on-board instruments such as a power
conversion device, a brake control device, and an air
conditioner, and is used for travel control of the train,
15 maintenance of the train, and the like. Patent Literature
1 discloses a technique in which a monitoring central
device collects data from each on-board instrument through
a command transmission line and an information transmission
line connecting a plurality of vehicles.
20
Citation List
Patent Literature
[0003] Patent Literature 1: Japanese Patent Application
Laid-open No. H06-90509
25
Summary
Technical Problem
[0004] In a recently manufactured vehicle, an in-vehicle
network based on Ethernet (registered trademark) or the
30 like is constructed, and a large capacity of data can be
transmitted. For example, by directly performing Ethernet
(registered trademark) communication or wireless
communication between a vehicle management device and an
3
on-board instrument, it is possible to acquire data
transmitted from the on-board instrument as it is. However,
in a conventional vehicle such as that described in Patent
Literature 1 having a small transmission capacity between a
5 monitoring central device and a terminal device or between
the monitoring central device and a display device, when
the monitoring central device collects data indicating an
operating state from each on-board instrument, it is
necessary to limit data depending on the small transmission
10 capacity and then to collect the limited data, and when
data is displayed on a display screen of the vehicle, it is
necessary to more carefully select data from the data
acquired by the monitoring central device from each onboard instrument and to transmit the selected data to a
15 display device. Therefore, in order to collect data
indicating an operating state from each on-board instrument
without limitation, it is necessary to additionally provide
each on-board instrument with a dedicated interface for
data collection, which is a problem.
20 [0005] The present invention has been made in view of
the above, and an object thereof is to provide a data
collection device capable of collecting data transmitted
from an on-board instrument installed on a train without
reviewing a system of a vehicle information management
25 device and additionally providing the on-board instrument
with an interface.
Solution to Problem
[0006] In order to solve the above-described problem and
30 achieve the object, the present invention provides a data
collection device that collects data transmitted by serial
communication from an on-board instrument connectable to a
vehicle information management device that collects data
4
from the on-board instrument. The data collection device
includes a data collection unit that collects data
transmitted from the on-board instrument.
5 Advantageous Effects of Invention
[0007] According to the present invention, the data
collection device achieves an effect that it is possible to
collect data transmitted from an on-board instrument
installed on a train without reviewing a system of a
10 vehicle information management device and additionally
providing the on-board instrument with an interface.
Brief Description of Drawings
[0008] FIG. 1 is a diagram illustrating an example
15 configuration of a data collection device according to a
first embodiment.
FIG. 2 is a diagram illustrating a first connection
example of the data collection device according to the
first embodiment.
20 FIG. 3 is a diagram illustrating a second connection
example of the data collection device according to the
first embodiment.
FIG. 4 is a flowchart illustrating operations of the
data collection device according to the first embodiment.
25 FIG. 5 is a diagram illustrating an example in which a
processing circuitry included in the data collection device
according to the first embodiment is configured with a
processor and a memory.
FIG. 6 is a diagram illustrating an example in which
30 the processing circuitry included in the data collection
device according to the first embodiment is configured with
dedicated hardware.
FIG. 7 is a diagram illustrating an example
5
configuration of a data collection device according to a
second embodiment.
FIG. 8 is a flowchart illustrating operations of the
data collection device according to the second embodiment.
5
Description of Embodiments
[0009] Hereinafter, a data collection device and a data
collection method according to each embodiment of the
present invention will be described in detail with
10 reference to the drawings. The present invention is not
limited to the embodiments.
[0010] First Embodiment.
FIG. 1 is a diagram illustrating an example
configuration of a data collection device 10 according to a
15 first embodiment of the present invention. The data
collection device 10 is a device installed on a train 100.
The train 100 may include a plurality of vehicles or may be
a single train including one vehicle. The data collection
device 10 is connected to a vehicle information management
20 device 20 and an on-board instrument 30 via a transmission
line 40 and a connector 41. In addition, the data
collection device 10 is connected to a measurement
instrument 50 and an on-board instrument 60.
[0011] The vehicle information management device 20
25 collects data indicating an operating state of the on-board
instrument 30 transmitted from the on-board instrument 30
via the transmission line 40 and the connector 41. For
example, the vehicle information management device 20
displays a part of the collected data on a display device
30 (not illustrated).
[0012] The on-board instrument 30 is an on-board
instrument connectable to the vehicle information
management device 20. The on-board instrument 30 is, for
6
example, a power conversion device, a brake control device,
an auxiliary power supply device, a main motor, an engine,
or the like, but is not limited thereto. The on-board
instrument 30 transmits, for example, data indicating an
5 operating state such as abnormality information of each onboard instrument and air-conditioning temperature
information, and a command to another instrument, and the
like to the vehicle information management device 20 via
the transmission line 40 and the connector 41. When the
10 on-board instrument 30 receives, after start-up, a data
transmission request from the vehicle information
management device 20, the on-board instrument 30 transmits
data indicating the operating state to the vehicle
information management device 20 continuously at regular
15 intervals.
[0013] The transmission line 40 is a transmission line
used for communication between the vehicle information
management device 20 and the on-board instrument 30. Here,
the vehicle information management device 20 and the on20 board instrument 30 perform communication by serial
communication. The serial communication is, for example,
communication using a transmission method in accordance
with a communication standard of recommended standard (RS)
485. The transmission line 40 is a transmission line used
25 in a transmission method based on serial communication,
which is not a transmission method in which a communication
destination is designated and transmission is performed
such as Ethernet (registered trademark). Therefore, even
if the data collection device 10 is connected between the
30 vehicle information management device 20 and the on-board
instrument 30 as illustrated in FIG. 1, transmission can be
performed between the vehicle information management device
20 and the on-board instrument 30, and transmission can be
7
performed also between the data collection device 10 and
the on-board instrument 30.
[0014] The number of data collection devices 10 provided
on the train 100 is the same as the number of on-board
5 instruments 30 from which data is desired to be collected.
The number of data collection devices 10 provided may be
the number of types of the on-board instruments 30 from
which data is desired to be collected. In addition, a
plurality of data collection devices 10 may be provided for
10 one on-board instrument 30. FIG. 2 is a diagram
illustrating a first connection example of the data
collection device 10 according to the first embodiment.
FIG. 3 is a diagram illustrating a second connection
example of the data collection device 10 according to the
15 first embodiment. In FIGS. 2 and 3, power conversion
devices 31a and 31b and brake control devices 32a and 32b
are examples of the on-board instrument 30. As illustrated
in FIGS. 2 and 3, the on-board instruments 30 are daisychained for each type, and are connected to the vehicle
20 information management device 20.
[0015] The data collection device 10 can collect data
without changing the configurations of the vehicle
information management device 20 and the on-board
instrument 30 by branching and wiring the transmission line
25 40 as illustrated in FIG. 1. In FIG. 2, branching is
performed inside each of the data collection devices 10,
but the branching may be performed by using, for example, a
cable outside each of the data collection devices 10.
[0016] Each data collection device 10 may be connected
30 between the vehicle information management device 20 and
the on-board instrument 30 as illustrated in FIG. 2, or may
be connected between the on-board instruments 30 as
illustrated in FIG. 3. The connection examples of the data
8
collection devices 10 illustrated in FIGS. 2 and 3 are
merely examples, and there is no limitation thereto. The
data collection devices 10 may be each connected to an end
of the daisy-chained on-board instrument 30 as in a state
5 obtained by removing the power conversion device 31b and
the brake control device 32b from FIG. 3. The end is a
side of the daisy-chained on-board instrument 30, the side
being opposite to a side to which the vehicle information
management device 20 is connected. In addition, one data
10 collection device 10 may collect data transmitted from the
power conversion devices 31a and 31b to the vehicle
information management device 20 and data transmitted from
the brake control devices 32a and 32b to the vehicle
information management device 20. In the train 100, by
15 connecting the data collection devices 10 as illustrated in
FIG. 2 or 3, the data collection devices 10 can collect
data transmitted by serial communication from the on-board
instruments 30 without changing the configurations of the
vehicle information management device 20 and the on-board
20 instruments 30.
[0017] The measurement instrument 50 is a temperature
sensor, a global positioning system (GPS) that measures a
position, a vibration sensor, or the like, installed around
the on-board instrument 30 or 60, or the like. The on25 board instrument 60 is an on-board instrument that is not
connected to the vehicle information management device 20,
that is, an on-board instrument that is additionally
installed on the train 100. The on-board instrument 60 is,
for example, a pantograph, a truck, a monitoring camera, or
30 the like. The measurement instrument 50 and the on-board
instrument 60 that are not connected to the vehicle
information management device 20 are collectively referred
to as an external instrument 70.
9
[0018] The data collection device 10 collects data
transmitted by serial communication from the on-board
instrument 30 connectable to the vehicle information
management device 20 that collects data from the on-board
5 instrument 30. The data collection device 10 collects data
transmitted from the on-board instrument 30 to the vehicle
information management device 20, or from the vehicle
information management device 20 to the on-board instrument
30 via the transmission line 40 and the connector 41. A
10 configuration of the data collection device 10 will be
described. The data collection device 10 includes a data
collection unit 11, a storage unit 12, a measurement
instrument 13, an output unit 14, and a data acquisition
unit 15.
15 [0019] The data collection unit 11 collects data
transmitted by serial communication from the on-board
instrument 30 to the vehicle information management device
20 via the transmission line 40 and the connector 41. The
data collection unit 11 stores the collected data in the
20 storage unit 12.
[0020] The measurement instrument 13 is a measurement
instrument installed inside the data collection device 10.
The measurement instrument 13 is, for example, a timepiece
that measures time, an acceleration sensor that detects
25 acceleration of the train 100, a temperature sensor that
measures temperature around the data collection device 10,
a GPS that measures a position, a vibration sensor, or the
like. The data collection device 10 may include one
measurement instrument 13 or a plurality of measurement
30 instruments 13.
[0021] The data acquisition unit 15 acquires data from
the measurement instrument 50 and the on-board instrument
60 outside the data collection device 10, that is, the
10
external instrument 70. For example, in a case where the
measurement instrument 50 is a temperature sensor, the data
acquisition unit 15 acquires data about a measurement value
of temperature from the measurement instrument 50, and in a
5 case where the on-board instrument 60 is a monitoring
camera, the data acquisition unit 15 acquires image data of
the monitoring camera from the on-board instrument 60.
[0022] The storage unit 12 stores and accumulates the
data collected by the data collection unit 11. In a case
10 where the data collection unit 11 acquires a measurement
value of the measurement instrument 13, the storage unit 12
stores and accumulates the data collected by the data
collection unit 11 together with the measurement value of
the measurement instrument 13. In a case where the data
15 acquisition unit 15 acquires data of the external
instrument 70, the storage unit 12 stores and accumulates
the data collected by the data collection unit 11 together
with the data of the external instrument 70. In a case
where the data collection unit 11 acquires a measurement
20 value of the measurement instrument 13 and the data
acquisition unit 15 acquires data of the external
instrument 70, the storage unit 12 stores and accumulates
the data collected by the data collection unit 11 together
with the measurement value of the measurement instrument 13
25 and the data of the external instrument 70.
[0023] The output unit 14 outputs the data stored in the
storage unit 12. Alternatively, the output unit 14 may
directly output the data collected by the data collection
unit 11 without via the storage unit 12. The output unit
30 14 may be, for example, a wireless instrument that
transmits the data stored in the storage unit 12 or the
data collected by the data collection unit 11 to a terminal
device (not illustrated) by wireless communication, or may
11
be an output interface that outputs the data stored in the
storage unit 12 or the data collected by the data
collection unit 11 to a storage medium (not illustrated) or
a display device (not illustrated). The output unit 14 may
5 function as both the wireless instrument and the output
interface.
[0024] Next, operations of the data collection device 10
will be described. FIG. 4 is a flowchart illustrating the
operations of the data collection device 10 according to
10 the first embodiment. In the data collection device 10,
the data collection unit 11 collects data transmitted from
the on-board instrument 30 to the vehicle information
management device 20 (step S1). The data acquisition unit
15 acquires a measurement value from the measurement
15 instrument 13 (step S2). The data acquisition unit 15
acquires data from the external instrument 70 (step S3).
Specifically, the data acquisition unit 15 acquires data
from an instrument that is not connected to the vehicle
information management device 20, that is, at least one of
20 the measurement instrument 50 and the on-board instrument
60. The data collection device 10 may change the order of
the operations from step S1 to step S3 and perform the
operations or may perform the operations at the same time.
The data collection unit 11 stores the collected data in
25 the storage unit 12 in association with the measurement
value of the measurement instrument 13 and the data of the
external instrument 70 acquired by the data acquisition
unit 15 (step S4).
[0025] Depending on the type of the on-board instrument
30 30 from which data is desired to be collected, the data
collection device 10 may be configured not to include the
measurement instrument 13 or may be configured not to be
connected to the external instrument 70. In a case where
12
the data collection device 10 does not include the
measurement instrument 13, the data collection device 10
skips the operation of step S2. The data collection unit
11 stores the collected data in the storage unit 12 in
5 association with the data of the external instrument 70
acquired by the data acquisition unit 15. In a case where
the data collection device 10 is not connected to the
external instrument 70, the data collection device 10 skips
the operation of step S3. The data collection unit 11
10 stores the collected data in the storage unit 12 in
association with the measurement value of the measurement
instrument 13. In a case where the data collection device
10 does not include the measurement instrument 13 and is
not connected to the external instrument 70, the data
15 collection device 10 skips the operations of steps S2 and
S3. The data collection unit 11 stores only the collected
data in the storage unit 12.
[0026] The output unit 14 outputs the data of the onboard instrument 30 stored in the storage unit 12 or the
20 data of the on-board instrument 30 collected by the data
collection unit 11 without via the storage unit 12 (step
S5). The output unit 14 may transmit the data to a
terminal device (not illustrated) by wireless communication,
or may output the data to a storage medium.
25 [0027] In a case where the data of the on-board
instrument 30 is stored in the storage unit 12 in
association with the measurement value of the measurement
instrument 13, the output unit 14 also outputs the
measurement value of the measurement instrument 13 together
30 with the data of the on-board instrument 30. In a case
where the data of the on-board instrument 30 is stored in
the storage unit 12 in association with the data of the
external instrument 70, the output unit 14 also outputs the
13
data of the external instrument 70 together with the data
of the on-board instrument 30. In a case where the data of
the on-board instrument 30 is stored in the storage unit 12
in association with the measurement value of the
5 measurement instrument 13 and the data of the external
instrument 70, the output unit 14 also outputs the
measurement value of the measurement instrument 13 and the
data of the external instrument 70 together with the data
of the on-board instrument 30.
10 [0028] Next, a hardware configuration of the data
collection device 10 will be described. In the data
collection device 10, the storage unit 12 is a memory. The
measurement instrument 13 is a timepiece, a temperature
sensor, or the like. The output unit 14 is a wireless
15 instrument or an output interface. The data collection
unit 11 and the data acquisition unit 15 are realized by a
processing circuitry. The processing circuitry may be a
processor that executes a program stored in a memory and
the memory, or may be dedicated hardware.
20 [0029] FIG. 5 is a diagram illustrating an example in
which a processing circuitry included in the data
collection device 10 according to the first embodiment is
configured with a processor and a memory. In a case where
the processing circuitry is configured with a processor 91
25 and a memory 92, functions of the processing circuitry of
the data collection device 10 are realized by software,
firmware, or a combination of software and firmware. The
software or the firmware is described as a program and
stored in the memory 92. In the processing circuitry, the
30 processor 91 reads and executes the program stored in the
memory 92, thereby realizing the functions. That is, the
processing circuitry includes the memory 92 for storing
programs with which a process of the data collection device
14
10 is executed as a result. It can also be said that these
programs cause a computer to execute procedures and methods
of the data collection device 10.
[0030] Here, the processor 91 may be a central
5 processing unit (CPU), a processing device, an arithmetic
device, a microprocessor, a microcomputer, a digital signal
processor (DSP), or the like. The memory 92 corresponds to,
for example, a non-volatile or volatile semiconductor
memory such as a random access memory (RAM), a read only
10 memory (ROM), a flash memory, an erasable programmable ROM
(EPROM), or an electrically EPROM (EEPROM (registered
trademark)), a magnetic disk, a flexible disk, an optical
disk, a compact disc, a mini disk, or a digital versatile
disc (DVD).
15 [0031] FIG. 6 is a diagram illustrating an example in
which the processing circuitry included in the data
collection device 10 according to the first embodiment is
configured with dedicated hardware. In a case where the
processing circuitry is configured with dedicated hardware,
20 a processing circuitry 93 illustrated in FIG. 6 corresponds
to, for example, a single circuit, a composite circuit, a
programmed processor, a parallel programmed processor, an
application specific integrated circuit (ASIC), a field
programmable gate array (FPGA), or a combination thereof.
25 Functions of the data collection device 10 may be
separately realized by the processing circuitry 93, or the
functions may be collectively realized by the processing
circuitry 93.
[0032] A part of the functions of the data collection
30 device 10 may be realized by dedicated hardware and another
part thereof may be realized by software or firmware. Thus,
the processing circuitry can realize each of the abovedescribed functions by dedicated hardware, software,
15
firmware, or a combination thereof.
[0033] As described above, according to the present
embodiment, the data collection device 10 is connected
between the vehicle information management device 20 and
5 the on-board instrument 30, between the on-board
instruments 30, or to the on-board instrument 30 as a
terminal of the same type of the on-board instruments 30
daisy-chained, collects and stores data transmitted from
the on-board instruments 30 to the vehicle information
10 management device 20, and outputs the stored data. As a
result, the data collection device 10 can collect data
transmitted by serial communication from the on-board
instrument 30 without additionally providing the on-board
instrument with an interface dedicated to the vehicle
15 information management device 20 and the on-board
instrument 30. In addition, there is no need to change the
configuration between the vehicle information management
device 20 and the on-board instrument 30, and furthermore,
data can be collected without specifying a destination such
20 as an Internet protocol (IP) address, and thereby it is
possible to collect data of the on-board instrument 30
while continuing communication between the vehicle
information management device 20 and the on-board
instrument 30. Furthermore, according to the present
25 embodiment, even in a case where the vehicle information
management device 20 limits data depending on a small
transmission capacity and then acquires the limited data,
it is possible to collect all data output from the on-board
instrument 30 including data discarded by the vehicle
30 information management device 20 when limiting the data.
[0034] Note that, in the train 100, as long as the onboard instrument 30 is configured to be connectable to the
vehicle information management device 20, the data
16
collection device 10 can collect data from the on-board
instrument 30 even if the on-board instrument 30 is not
actually connected to the vehicle information management
device 20. In a case where the on-board instrument 30 is
5 not connected to the vehicle information management device
20, instead of the vehicle information management device 20,
the data collection unit 11 in the data collection device
10 requests the on-board instrument 30 to transmit data
after start-up of the train 100. The on-board instrument
10 30 transmits the data of the on-board instrument 30 in
response to the data transmission request. The data
collection unit 11 collects data transmitted from the onboard instrument 30. The subsequent operations of the data
collection device 10 are similar to the above-described
15 operations.
[0035] Second Embodiment.
In the first embodiment, the method has been described
in which the data collection device 10 collects data
transmitted by serial communication from the on-board
20 instrument 30 without changing the conventional
configurations of the vehicle information management device
20 and the on-board instrument 30. In a second embodiment,
a case will be described where a signal such as a control
command is transmitted from the data collection device to
25 the on-board instrument 30.
[0036] FIG. 7 is a diagram illustrating an example
configuration of a data collection device 10a according to
the second embodiment. The data collection device 10a is
obtained by adding a signal generation unit 16 and a signal
30 transmission unit 17 to the data collection device 10 of
the first embodiment illustrated in FIG. 1.
[0037] The signal generation unit 16 generates a signal
such as a control command directed to the on-board
17
instrument 30. The signal generation unit 16 may generate
a signal upon receiving an instruction from a user, or may
generate a signal when data stored in the storage unit 12
falls under a prescribed condition. In a case of
5 generating a signal upon receiving an instruction from the
user, the signal generation unit 16 may include an input
interface such as a switch that receives the instruction
from the user.
[0038] The signal transmission unit 17 transmits the
10 signal generated by the signal generation unit 16 to the
on-board instrument 30 via the transmission line 40 and the
connector 41 through which the data collection unit 11
collects data.
[0039] Next, operations of the data collection device
15 10a will be described. FIG. 8 is a flowchart illustrating
the operations of the data collection device 10a according
to the second embodiment. First, in the data collection
device 10a, the signal generation unit 16 generates a
signal such as a control command directed to the on-board
20 instrument 30 (step S11). As described above, the signal
generation unit 16 may generate a signal upon receiving an
instruction from the user, or may generate a signal when
data stored in the storage unit 12 falls under a prescribed
condition. The signal transmission unit 17 transmits the
25 signal generated by the signal generation unit 16 to the
on-board instrument 30 via the transmission line 40 and the
connector 41 (step S12).
[0040] Here, in the first embodiment, the data
collection device 10 can collect the data transmitted from
30 the on-board instrument 30 without changing the
configurations of the vehicle information management device
20 and the on-board instrument 30. The second embodiment
is a data collection device and a data collection method
18
for the vehicle information management device 20 and the
on-board instrument 30 capable of responding to
transmission of a signal from the data collection device
10a. When receiving a signal from the data collection
5 device 10a, the vehicle information management device 20
can respond to transmission of the signal from the data
collection device 10a, for example, by ignoring the
received signal. The on-board instrument 30 can respond to
transmission of a signal from the data collection device
10 10a, for example, by operating on the basis of the signal
received from the data collection device 10a. In the
example of FIG. 7, the on-board instrument 30 is connected
to the vehicle information management device 20, but this
is merely an example, and the on-board instrument 30 may
15 not be connected to the vehicle information management
device 20. In the second embodiment, in a case where the
train 100 does not include the vehicle information
management device 20, instead of the vehicle information
management device 20, the data collection device 10a can
20 transmit a signal such as a control command to the on-board
instrument 30. Since the data collection device 10a can
transmit a signal, it is possible to collect data that has
not been able to be collected before without additionally
providing the on-board instrument 30 with a dedicated
25 interface.
[0041] A hardware configuration of the data collection
device 10a will be described. In the data collection
device 10a, the signal transmission unit 17 is a
communication instrument capable of transmitting a signal
30 to the on-board instrument 30 via the transmission line 40
and the connector 41. The signal generation unit 16 is
realized by a processing circuitry. Similarly to the first
embodiment, the processing circuitry may be a processor
19
that executes a program stored in a memory and the memory,
or may be dedicated hardware.
[0042] As described above, according to the present
embodiment, the data collection device 10a generates a
5 signal such as a control command directed to the on-board
instrument 30 and transmits the signal to the on-board
instrument 30. As a result, instead of the vehicle
information management device 20, the data collection
device 10a can control the on-board instrument 30. The
10 data collection device 10a of the second embodiment is
useful particularly in a case where the vehicle information
management device 20 is not installed on the train 100.
[0043] The configurations described in each embodiment
above are merely examples of the content of the present
15 invention and can be combined with other known technology
and part thereof can be omitted or modified without
departing from the gist of the present invention.
Reference Signs List
20 [0044] 10, 10a data collection device; 11 data
collection unit; 12 storage unit; 13, 50 measurement
instrument; 14 output unit; 15 data acquisition unit; 16
signal generation unit; 17 signal transmission unit; 20
vehicle information management device; 30, 60 on-board
25 instrument; 31a, 31b power conversion device; 32a, 32b
brake control device; 40 transmission line; 41 connector;
70 external instrument; 100 train.

20
We Claim :
1. A data collection device that collects data
transmitted by serial communication from an on-board
instrument connectable to a vehicle information management
5 device that collects data from the on-board instrument, the
data collection device comprising:
a data collection unit to collect data transmitted
from the on-board instrument.
10 2. The data collection device according to claim 1,
comprising:
a storage unit to store data collected by the data
collection unit.
15 3. The data collection device according to claim 1,
comprising:
an output unit to output data collected by the data
collection unit.
20 4. The data collection device according to claim 2,
comprising:
an output unit to output data stored in the storage
unit.
25 5. The data collection device according to claim 2 or 4,
comprising:
a measurement instrument, wherein
the data collection unit stores collected data in the
storage unit in association with a measurement value of the
30 measurement instrument.
6. The data collection device according to claim 2 or 4,
comprising:
21
a data acquisition unit to acquire data from an
external instrument, wherein
the data collection unit stores collected data in the
storage unit in association with data of the external
5 instrument acquired by the data acquisition unit.
7. The data collection device according to any one of
claims 1 to 6, wherein
the data collection unit collects data transmitted
10 from the on-board instrument to the vehicle information
management device.
8. The data collection device according to any one of
claims 1 to 6, wherein
15 in a case where the on-board instrument is not
connected to the vehicle information management device, the
data collection unit requests the on-board instrument to
transmit data and collects data transmitted from the onboard instrument.
20
9. The data collection device according to any one of
claims 1 to 8, comprising:
a signal generation unit to generate a signal directed
to the on-board instrument; and
25 a signal transmission unit to transmit the signal to
the on-board instrument via a transmission line through
which the data collection unit collects data.
10. A data collection method of a data collection device
30 that collects data transmitted by serial communication from
an on-board instrument connectable to a vehicle information
management device that collects data from the on-board
instrument, the data collection method comprising:
22
a collecting step of collecting, by a data collection
unit, data transmitted from the on-board instrument.
11. The data collection method according to claim 10,
5 comprising:
a storing step of storing, by the data collection unit,
collected data in a storage unit.
12. The data collection method according to claim 10,
10 comprising:
an output step of outputting, by an output unit, data
collected by the data collection unit.
13. The data collection method according to claim 11,
15 comprising:
an output step of outputting, by an output unit, data
stored in the storage unit.
14. The data collection method according to claim 11 or 13,
20 wherein
in the storing step, the data collection unit stores
collected data in the storage unit in association with a
measurement value of a measurement instrument.
25 15. The data collection method according to claim 11 or 13,
wherein
in the storing step, the data collection unit stores
collected data in the storage unit in association with data
of an external instrument.
30
16. The data collection method according to any one of
claims 10 to 15, wherein
in the collecting step, the data collection unit
23
collects data transmitted from the on-board instrument to
the vehicle information management device.
17. The data collection method according to any one of
5 claims 10 to 15, wherein
in the collecting step, in a case where the on-board
instrument is not connected to the vehicle information
management device, the data collection unit requests the
on-board instrument to transmit data and collects data
10 transmitted from the on-board instrument.
18. The data collection method according to any one of
claims 10 to 17, comprising:
a signal generation step of generating, by a signal
15 generation unit, a signal directed to the on-board
instrument; and
a signal transmission step of transmitting, by a
signal transmission unit, the signal to the on-board
instrument via a transmission line through which the data
20 collection unit collects data.