SYSTEM AND METHOD OF REMOTE MANAGEMENT OF
CONSTRUCTION EQUIPMENT FOR CONTROLLING TRANSMISSION AND
RECEPTION OF DATA IN A KEY-OFF STATE
Technical Field
The present invention relates to a system of remote management of a
construction equipment, and more particularly, to a system and a method of remote
management of a construction equipment for controlling transmission and reception of
data of the construction equipment in a a key-off state.
Background Art
In general, a remote management system of a construction equipment is the
system in which a communication terminal receives signals of various digital and
analog sensors mounted on a hydraulic system including an engine, a pump, a
transmission, and a main control valve in a construction such as an excavator, a wheel
loader, or the like to transmit data to a PC of a control station through a communication
network and operation data of the construction equipment is made into a database to
enable a equipment manager or a equipment repairer to easily recognize interested
operation information or history management contents of the construction equipment
through an Internet network to support maintenance of an optimal operation condition
of the equipment. Routinely, the system is also called a tele-management system or
tele-monitoring system (TMS).
Herein, the operation information of the construction equipment is the
information including various operation state information such as the temperature of
cooling water, the temperature of a working fluid, a fuel residual quantity, battery
voltage, an engine speed, a traveling speed, a warning, and a normal operation state of a
valve that are displayed on a monitor in a driver's seat.

In the remote management system of the construction equipment, data is
transmitted from the communication terminal mounted for each construction equipment
to a web server by using a predetermined communication network.
Besides, even in the case in which a necessary program such as firmware of
the construction equipment is required to be updated, the control station may update the
program through the communication network.
However, data transmission and reception between the construction
equipment and the control station, such as a request for necessary data and program
updating can be subjected to communication only when the construction equipment is
with a starting key in an on state and cannot perform communication when the
construction equipment is with the starting key in an off state. The reason for that is
that since electronic control devices of a general equipment use power generated from
an engine or are connected with a battery when a vehicle is driven, the power is not
applied to the electronic control devices, which do not operate with the starting key in
the on state.
As such, in a current equipment system, since the power is not applied to
electronic control devices such as a equipment control unit, an instrument panel, an
engine controller unit, and the like when the starting key is in the on state, equipment
operating information such as channel information for an audio used at the time of
starting the equipment, a wind speed and a wind direction of an air-conditioner, and like
cannot be stored/modified/extracted and information stored in volatile memories of
corresponding devices is deleted at the same time of stopping the supply of the power
and thus cannot be used at the time of restarting the equipment.
Further, when the equipment is in the a key-off state, the control station
cannot verify the operation information of the equipment.

In order to solve the problem, a method in which the equipment uploads all
the operation information to the PC of the control station before the equipment before
stopping the start may be used, but a method of transmitting all the operation
information to a server creates high cost for the communication expense due to the
increase of communication data. As a result, a method capable of accessing data of the
equipment which is with the starting key in the off state is required.
In addition, even when the control station intends to upgrade the firmware, the
control station cannot upgrade the firmware when the equipment is with the starting key
in the off state. Further, while the operator upgrades the firmware of the equipment
with the starting key in the on state, when the operator cannot recognize the starting key
in the on state and stops the starting, the program cannot be updated normally and thus
there is a possibility to generate a problem in driving the equipment.
As a result, a method capable of transmitting predetermined data such as
firmware upgrading with the equipment, which is with the starting key in the off state is
required.
Disclosure
Technical Problem
Accordingly, the present invention provides a system of remote management
of a construction equipment for controlling transmission and reception of data to a
construction equipment with a starting key in an off state.
Further, the present invention provides a system of remote management of a
construction equipment that can request and receive operation information of a
construction apparatus from controllers of the construction mechanical equipment and
other controllers even with the starting key in the off state and improve power
consumption efficiency.

In addition, the present invention provides a system of remote management of
a construction equipment for controlling transmission and reception of data of the
construction equipment so as to normally upgrade a firmware continually even in spite
of the off state of the starting key while upgrading the firmware with the starting key in
the on state.
Technical Solution
To this end, according to a first aspect of the present invention, a system of
remote management of a construction equipment includes a server communicatable with
a communication terminal through a communication network; and a construction
equipment where the communication terminal, a equipment control unit, and a plurality
of electronic control devices are installed, wherein the communication terminal, the
equipment control unit, and the electronic control devices are supplied standby power
from a battery provided in the construction equipment, when the equipment control unit
receives a key-off signal, the equipment control unit transfers a sleep mode switching
command to the communication terminal and the electronic control devices of which
operation modes are switched to a sleep mode, when the communication terminal wakes
up from the sleep mode state at the time of receiving an operation request from the
server and thereafter, wakes up the equipment control unit and transfers the requested
operation of the server, and the equipment control unit performs the operation singly
when performing the operation singly and thereafter, switches over to the sleep mode
when completing the operation, and when the operation is associated with at least one of
the electronic control devices, the equipment control unit performs the operation by
waking up the corresponding electronic control device and switches the waked up
electronic control device to the sleep mode when completing the operation.
Further, according to the exemplary embodiment of the present invention,

when the operation required by the server is a request for transmission of data possessed
by the equipment control unit or the electronic control devices, the equipment control
unit may wake up the corresponding electronic control device to collect the data and
switch the corresponding electronic control device to the sleep mode again when the
requested data is data possessed by at least one of the electronic control devices, and
output the collected data to the server through the communication terminal and
thereafter, also switch over to the sleep mode.
Furthermore, according to the exemplary embodiment of the present invention,
when the operation requested by the server is program updating of the equipment
control unit or the electronic control devices, the communication terminal may wake up
the equipment control unit and receive data required for updating from the server, the
equipment control unit may verify whether the data transmitted from the server is
program updating in the equipment control unit and thereafter, when the data is its own
program updating request, update the corresponding program and when the data is not
the program updating request in the equipment control unit, verify an electronic control
device in which program will be updated and thereafter, give a wake-up command to the
verified electronic control device and when the electronic control device wakes up,
transfer the program updating request signal, and the verified electronic control device
may wake up by the equipment control unit and thereafter, perform the program
updating.
In addition, according to the exemplary embodiment of the present invention,
when the operation requested by the server is the program updating of the equipment
control unit or the electronic control devices, the equipment control unit may supply
power to the electronic control device in which program updating is in progress until the
program updating is completed and switch the corresponding electronic control device

to the sleep mode, and switch the rest of the electronic control devices to the sleep mode,
when a starting key off signal is applied during updating a predetermined program in a
normal operation state.
Moreover, according to the exemplary embodiment of the present invention,
when the program updating is completed, the updated program may be stored and
thereafter, be applied to the equipment from the time of subsequent starting.
According to a second aspect of the present invention, a method for
controlling transmission and reception of data in a a key-off state of a construction
equipment in a system of remote management of the construction equipment including a
construction equipment including a communication terminal, a equipment control unit,
and a plurality of electronic control devices, and a server transmitting a predetermined
data request signal to the communication terminal through a communication network,
includes: transferring, by the equipment control unit, a sleep mode switching command
to the communication terminal and the electronic control devices and switching
operation modes thereof to a sleep mode, when receiving a key-off signal; transferring,
by the communication terminal, a wakeup command to the equipment control unit and
thereafter, transferring the data request signal when the equipment control unit wakes up,
when receiving the data request signal from the server in the sleep mode state; judging,
by the equipment control unit, whether or not to store requested data when receiving the
data request signal after waking up when receiving the wakeup command in the sleep
mode state; transmitting, by the equipment control unit, the corresponding data to the
server through the communication terminal, when storing the requested data; and
verifying, by the equipment control unit, an electronic control device storing the
corresponding data and waking up the corresponding electronic control device and
thereafter, transmitting data requested by the verified electronic control device to the

server, when not storing the requested data.
According to a third aspect of the present invention, a method for controlling
transmission and reception of data in a a key-off state of a construction equipment in a
system of remote management of the construction equipment including a construction
equipment including a communication terminal, a equipment control unit, and a
plurality of electronic control devices, and a server transmitting a predetermined data
request signal to the communication terminal through a communication network,
includes: requesting, by the server, program updating to the communication terminal;
transmitting, by the communication terminal, a wakeup command to the equipment
control unit and thereafter, transferring the program updating request when the
equipment control unit wakes up, when receiving the program updating request in a
sleep mode; verifying, by the equipment control unit, whether the program updating
request is a program updating request in the equipment control unit when receiving the
program updating request after waking up when receiving the wakeup command in the
sleep mode; updating the corresponding program when the program updating request is
the program updating request in the equipment control unit in accordance with the
verification result; verifying an electronic control device of which a program will be
updated and thereafter, giving the wakeup command to the verified electronic control
device , and transferring the program updating request signal when the electronic
control device wakes up, when the program updating request is not the program
updating request in the equipment control unit in accordance with the verification result;
and updating, by the verified electronic control device, the corresponding program when
receiving the program updating request signal after waking up when receiving the
wakeup command in the sleep mode.
Further, according to the exemplary embodiment of the present invention, the

method may further include continuously updating, by the equipment control unit, the
program by using standby power when receiving a starting key off signal during
updating a predetermined program in a normal operation state and switching over to the
sleep mode when the updating is completed.
In addition, according to the exemplary embodiment of the present invention,
the method may further include continuously updating, by the electronic control device,
the program by using standby power when receiving the starting key off signal during
updating a predetermined program in the normal operation state and switching over to
the sleep mode when the updating is completed.
Moreover, according to the exemplary embodiment of the present invention,
the method may further include storing the updated program and applying the updated
program to the equipment from the time of subsequent starting when the program
updating is completed.
Advantageous Effects
According to the present invention, standby power is minimally applied to a
controller of a construction equipment and other controllers in a key-off to store
operation information before a key-off, and as a result, equipment operation information
such as information including channel information of an audio, information regarding a
wind speed and a wind direction of an air conditioner used in starting the equipment
cannot be stored and thus, information used just before when starting is on afterwards
can be used as it is.
Further, since the standby power is minimally supplied even in a key-off,
predetermined information of a construction apparatus can be accessed by using a
control station or a user terminal.
In addition, firmware upgrading to the construction equipment can be

performed even in a a key-off and firmware upgrading can be normally performed
continuously even in the a key-off state while performing firmware upgrading in a a
key-on state.
[Description of Drawings]
FIG. 1 is a configuration diagram of a remote control system according to an
exemplary embodiment of the present invention,
FIG. 2 is a signal flowchart showing a process of controlling transmission and
reception of data at the time when a server requests predetermined data to a construction
equipment when the construction equipment is in a key off state according to an
exemplary embodiment of the present invention,
FIG. 3 is a signal flowchart showing a process of controlling transmission and
reception of data at the time when a server requests program updating to a construction
equipment when the construction equipment is in a a key-off state according to an
exemplary embodiment of the present invention, and
FIG. 4 is a signal flowchart showing a process of controlling transmission and
reception of data at the time when a construction equipment is in key off while
performing program updating in the state where the construction equipment is in a a
key-on state according to an exemplary embodiment of the present invention.
Best Mode
Hereinafter, exemplary embodiments of the present invention will be
described in detail with reference to the accompanying drawings. It should be noted
that the same components refer to the same reference numerals anywhere as possible in
the drawings. In the following description, specific detailed matters will be described
and are provided to the more overall understanding of the present invention. Further,
in describing the present invention, well-known functions or constructions will not be

described in detail since they may unnecessarily obscure the understanding of the
present invention.
Hereinafter, a method for controlling transmission and reception of data of a
construction equipment which is with a starting key in an off state according to an
exemplary embodiment of the present invention will be described in detail with
reference to the accompanying drawings.
FIG. 1 is a configuration diagram of a remote control system of a construction
equipment according to an exemplary embodiment of the present invention.
A system of remote management of a construction equipment according to the
present invention includes a communication terminal 110, a equipment control unit 102,
and various electronic control devices. The electronic control devices include
electronic equipment used essentially to drive a equipment and electronic equipment for
promoting driver's convenience. The electronic devices further include an engine
controller unit 104, a key switch 106, an air conditioner controller 108, an instrument
panel 114, an audio processor 112, and the like. Further, a battery (not shown) for
supplying power to all the electronic control devices is included.
According to the present invention, all the electronic control devices can
always supply standby power from the battery regardless of an on or ff state of a starting
key. By this configuration, all the electronic control devices can operate in a normal
operation mode by receiving battery power or engine generation power which is normal
power with a key in an on state and operates in a sleep mode by receiving the battery
power, however, receiving minimum power with the key in an off state. At this time,
the sleep mode is a mode to enter a standby state with minimum power. Each of the
electronic control devices switches over to a normal operation mode only when a
wakeup signal is applied depending on occurrence of a predetermined event by

receiving minimum power from the battery in the sleep mode to perform a necessary
operation and thereafter, switches over to the sleep mode again.
All the electronic control devices maintains the sleep mode by receiving the
standby power even with the key in the off state to perform data providing and program
updating required by waking up only a corresponding electronic control device at the
time of requesting predetermined data and requesting program updating in the
construction equipment through a predetermined server such as a control station or a
user's terminal.
Referring to FIG. 1, the communication terminal 110 is the terminal that is
mounted on the construction equipment 100 for remote management of the construction
equipment and performs communication through at least one of satellite communication
and mobile communication. The communication terminal 110 is connected with the
equipment control unit 102, performs communication through a server 120 and a
communication network 120, and serves to transmit and receive data between the server
120 and the equipment control unit 102. In particular, in the present invention, when
the communication terminal 110 receives a switching command to the sleep mode from
the equipment control unit 102, the communication terminal 110 switches an operation
state of the equipment control unit 102 to the sleep mode and when the communication
terminal 110 receives the request for the predetermined data or program updating in the
sleep mode state, the communication terminal 110 applies a wakeup signal to the
equipment control unit 102 of the sleep mode state to wake up the equipment control
unit 102.
The equipment control unit 102 controls an overall operation of the
construction equipment 100 and includes an internal memory (not shown) storing
necessary programs. When the equipment control unit 102 receives a key switch off

signal from the key switch 106, the equipment control unit 102 transfers the sleep mode
switching command to the communication terminal 110 and the electronic control
devices and switches the operation mode from the normal operation mode to the sleep
mode. At this time, the electronic control devices are called all electronic control
devices connected with the equipment control unit 102 in the construction equipment
100.
Further, the communication terminal 110 wakes up from the sleep mode state
at the time of receiving an operation request from the server 120 and thereafter, wakes
up the equipment control unit 102 and transfers the requested operation of the server
120.
Therefore, the equipment control unit 102 performs the operation singly when
performing the operation singly and thereafter, the equipment control unit 102 switches
over to the sleep mode when completing the operation and when the operation is
associated with at least one of the electronic control devices, the equipment control unit
102 performs the operation by waking up the corresponding electronic control device
and switches the waked up electronic control device to the sleep mode when completing
the operation.
As such, when the equipment control unit 102 receives the request for the
predetermined data and the request for program updating from the communication
terminal 110 in the sleep mode, the equipment control unit 102 wakes up and thereafter,
performs the operation with the request. A detailed operation will be described with
reference to FIGS. 2 to 6 below.
Although the configuration for transmitting and receiving data according to
the request for the data and the request for program updating from the server 120 to the
construction equipment has been described in the exemplary embodiment of FIG. 1, the

configuration is not limited to the server 120 and a user can access the data of the
construction equipment by using his/her own mobile terminal 130 in person.
Hereinafter, with reference to FIGS. 2 to 4, there will be described the flow of
a signal for controlling transmission and reception of data between the server 120 and
the construction equipment 100 in order for the server 120 to access the data of the
construction equipment 100 when the construction equipment 100 is with the starting
key in the off state in the remote control system configured as shown in FIG. 1.
FIG. 2 shows a flowchart of a signal to control transmission and reception of
data when a predetermined data request is made while the construction equipment 100
is in the sleep mode according to an exemplary embodiment of the present invention.
Hereinafter, in FIGS. 2 to 4, an electronic control device 200 is used as a term
including all the electronic control devices connected with the equipment control unit
102 in the construction equipment 100. Assuming that a first electronic control device
250 is the electronic control device that should perform an operation with a
predetermined request event among all the electronic control devices, the first electronic
control device 250 will be described.
Referring to FIG. 2, when the equipment control unit 102 receives the key
switch off signal from the key switch 106 in step S202, the equipment control unit 102
transfers the switching command to the sleep mode to the electronic control devices 200
connected with the communication terminal 110 in steps S204 and S206 and switches
its current state to the sleep mode. Therefore, the electronic control devices 200 and
the communication terminal 110 switch their current operation modes to the sleep mode
in steps S208 and S205.
Thereafter, when the server 120 receives a request for a predetermined
equipment from the user, the server 120 transmits a data request signal to the

communication terminal 110 through the communication network 140 in step S212.
At this time, the data request signal includes a flag representing what is requested data.
Further, the data request signal may include even destination address information for
representing data stored in which electronic control device of the construction
equipment 100.
Therefore, when the communication terminal 110 operating in the sleep mode
receives the data request signal, the communication terminal 110 wakes up to be in the
normal operation state in step S214 and transfers to a wakeup command to the
equipment control unit 102 in order to wake up the equipment control unit 102 in step
S216.
The equipment control unit 102 wakes up according to the wakeup command
and thereafter, notifies that the equipment control unit 102 wakes up by transmitting an
acknowledge ack signal in step S218.
When The communication terminal 110 recognizes that the equipment control
unit 102 wakes up by receiving the acknowledge signal, the communication terminal
110 transfers the received data request signal to the equipment control unit 102 in step
S220.
When the equipment control unit 102 receives the data request signal, the
equipment control unit 102 judges whether the data requested according to the data
request signal is stored in step S222. Although a process when a flag for the requested
data is included in the data request signal is shown in the exemplary embodiment of the
present invention, if the destination address information is included in the data request
signal transmitted from the server 120, the equipment control unit 102 will verify
whether a destination address is the address of the equipment control unit 102 or the
address of another electronic control device instead of inspecting whether the requested

data is stored in the equipment control unit 102 in step S222.
Referring back to FIG. 2, the equipment control unit 102 reads the requested
data when the requested data is stored therein according to the inspection result in step
S222 and transmits the read data to the communication terminal 110 in step S228.
Therefore, the communication terminal 110 transmits data received in step S234 to the
server 120.
Meanwhile, when the requested data is not stored in the equipment control
unit 102 according to the inspection result in step S222, it is verified which electronic
control device among the electronic control devices 200 stores the corresponding data.
At this time, since the equipment control unit 102 stores information regarding data
stored in all the electronic control devices 200, the equipment control unit 102 verifies
which the data corresponding to the flag included in the data request signal is stored in
by using the information.
Thereafter, the equipment control unit 102 transmits the wakeup signal to the
first electronic control device 250 in step S224 when the verified electronic control
device is the first electronic control device 250.
Therefore, since the corresponding electronic control device 250 receives the
wakeup command in the sleep mode, the corresponding electronic control device 250
wakes up and thereafter, is in the normal operation state in step S226.
The equipment control unit 102 transfers the data request signal received in
step S230 when the first electronic control device 250 wakes up.
The first electronic control device 250 receiving the data request signal reads
the requested data and transmits the requested data to the server 120 through steps S232
and S238.
Meanwhile, the first electronic control device 250, the equipment control unit

102, and the communication terminal 110 individually perform the necessary operations
and thereafter, switch over to the sleep mode again to minimize power consumption.
Therefore, hereinafter, a process of controlling transmission and reception of
data when the server 120 requests program updating to the construction equipment 100
while the construction equipment 110 is with the starting key in the off state according
to an exemplary embodiment of the present invention will be described with reference
to FIG. 3.
Referring to FIG 3, since the construction equipment 100 is with the key in
the off state, it is assumed that the operation modes of the electronic control devices 200,
the equipment control unit 102, and the communication terminal 110 are the sleep mode
in steps S300, S302, and S304.
In step S3 06, when an operator requests program updating to a predetermined
equipment, the server 120 requests program updating to the communication terminal
110 of the corresponding equipment.
Therefore, the communication terminal 110 in the sleep mode state wakes up
according to the request for program updating and thereafter, in step S308, the
communication terminal 110 transmits the wakeup command to the equipment control
unit 102.
When the equipment control unit 102 receives the wakeup command, the
equipment control unit 102 wakes up in the sleep mode and thereafter, transmits the
acknowledge signal for notifying that the equipment control unit 102 wakes up in step
S310 to the communication terminal 110. Thereafter, the communication terminal 110
recognizes that the equipment control unit 102 wakes up and transfers the program
updating request received from the server 120 to the equipment control unit 102.
Therefore, when the equipment control unit 102 receives the program

updating request, the equipment control unit 102 verifies whether the corresponding
program updating request is the program updating request in the equipment control unit
102 in step S314.
According to the verification result in step S314, when the corresponding
program updating request is the program updating request of the equipment control unit
102, the equipment control unit 102 performs program updating by receiving update
program data in step S316 and thereafter, transmits an update completion signal to the
server 120 through the communication terminal 110 in step S318. Thereafter, the
communication terminal 110 switches over to the sleep mode a predetermined time after
updating is completed.
The server 120 recognizes that program updating to the corresponding
construction equipment is successfully completed when receiving the update completion
signal.
Meanwhile, according to the verification result in step S314, when the
corresponding program is not the equipment control unit 102's own program but a
program for another electronic control device, the equipment control unit 102 verifies
the corresponding electronic control device. Herein, assuming that the verified
electronic control device is the first electronic control device 250, the equipment control
unit 102 transmits the wakeup command to the first electronic control device 250 in step
S320.
When the first electronic control device 250 receives the wakeup command,
the first electronic control device 250 wakes up and switches over to the normal
operation mode in step S321 and transfers the acknowledge signal to the equipment
control unit 102 and notifies that the first electronic control device 250 wakes up in step
S322.

Thereafter, the equipment control unit 102 that recognizes that the first
electronic control device 250 wakes up transfers the received program updating request
to the first electronic control device 250.
In this case, the first electronic control device 250 performs program updating
by receiving the update program data in step S3 26 and transmits the update completion
signal to the server 120 through the communication terminal 110 in steps S328 and
S330. Thereafter, in step S334, the first electronic control device 250 completes
program updating and switches over to the sleep mode after a predetermined time
elapsed.
From now on, a signal flow showing a process of controlling transmission and
reception of data when the construction equipment 100 is with the starting key in the off
state while performing program updating in the state in which the construction
equipment 100 is with the starting key in the on state will be described with reference to
FIG. 4.
In step S400, it is assumed that the electronic control device 200, the
equipment control unit 102, and the communication terminal 110 are in the normal
operation mode state.
When the server 120 receives the request for program updating to a
predetermined equipment from the operator, the server 120 requests program updating
to the communication terminal 110 of the corresponding equipment in step S402.
Therefore, the communication terminal 110 transfers the update request to the
equipment control unit 102 in step S404 according to the program updating request.
The equipment control unit 102 which is in the normal operation state verifies
whether the corresponding program updating request is the program updating request in
the equipment control unit 102 in step S406 and when the corresponding program

updating request is the program updating request of the equipment control unit 102, the
process proceeds to step S408 and when the corresponding program updating request is
not the program updating request in the equipment control unit 102 but the program for
another electronic control device, the equipment control unit 102 verifies the
corresponding electronic control device. Herein, assuming that the verified electronic
control device is the first electronic control device 250, the equipment control unit 102
transmits the program updating request to the first electronic control device 250 in step
S422.
Then, the first electronic control device 250 receives update program data to
perform updating in step S422 and when the updating is completed, the first electronic
control device 250 transmits the update completion signal to the server 120 through the
equipment control unit 102 and the communication terminal 110 in steps S426 to S428.
Thereafter, the operation mode of the first electronic control device 250 is switched to
the sleep mode.
Meanwhile, according to the inspection result in step S406, when the
corresponding program updating request is verified as the program updating request in
the equipment control unit 102, the process proceeds to step S408 and the equipment
control unit 102 receives the update program data and performs program updating.
However, when the key switch off signal is applied to the equipment control
unit 102 in step S410 while the updating is performed, the operation mode is not
immediately switched to the sleep mode and the process proceeds to step S414 to
continuously perform the program updating operation. Thereafter, it is inspected
whether the updating is completed in step S416 and when the updating is completed, the
update completion signal is transmitted to the server 120 through the communication
terminal 110 in step S420 and the operation mode is switched to the sleep mode.

However, when the updating is not completed in step S416, the process proceeds to step
S414 to continuously perform the program updating operation.
That is, when the operator stops starting while the equipment control unit 102
that receives the standby power is subjected to program updating during driving the
equipment, the program updating is terminated and after a predetermined times elapsed,
the operation mode is switched to the sleep mode.
Although the exemplary embodiment for the case in which starting stops
during program updating of the equipment control unit 102 has been described in the
exemplary embodiment of FIG. 4, program updating is terminated and thereafter, the
operation mode is switched to the sleep mode in the same method even when starting
stops during program updating of other electronic control devices.
Further, as shown in FIGS. 3 and 4, the equipment control unit 102 and the
electronic control devices 200 that perform program updating applies the updated
program from next starting and store the update program in memories and thereafter,
applies the update program from next starting even though receiving the update program
in driving the equipment.
As described above, although certain exemplary embodiments of the present
invention has bee described in detail, it is to be understood by those skilled in the art
that the spirit and scope of the present invention are not limited to the certain exemplary
embodiments, but are intended to cover various modifications and changes without
departing from the gist.
Accordingly, since the above-mentioned exemplary embodiments are
provided to inform those skilled in the art of the scope of the present invention, it should
be understood that they are exemplary in all aspects and not limited and the present
invention is just defined by the scope of the appended claims.

Industrial Applicability
The present invention can be applied to a system of remotely manage a
construction equipment.

CLAIMS
1.A system of remote management of a construction equipment, comprising:
a server communicatable with a communication terminal through a
communication network; and
a construction equipment where the communication terminal, a equipment
control unit, and a plurality of electronic control devices are installed,
wherein the communication terminal, the equipment control unit, and the
electronic control devices are supplied electric power from a battery provided in the
construction equipment,
when the equipment control unit receives a key-off signal, the equipment
control unit transfers a sleep mode switching command to the communication terminal
and the electronic control devices of which operation states are switched to a sleep
mode state,
when the communication terminal wakes up from the sleep mode state at the
time of receiving an operation request from the server and thereafter, wakes up the
equipment control unit and transfers the requested operation of the server, and
the equipment control unit performs the operation singly when performing the
operation singly and thereafter, switches over to the sleep mode state when completing
the operation, and when the operation is associated with at least one of the electronic
control devices, the equipment control unit performs the operation by waking up the
corresponding electronic control device and switches the waked up electronic control
device to the sleep mode when completing the operation.
2. The system of remote management of a construction equipment according
to claim 1, wherein when the operation required by the server is a request for
transmission of data possessed by the equipment control unit or the electronic control

devices,
the equipment control unit wakes up the corresponding electronic control
device to collect the data and switch the corresponding electronic control device to the
sleep mode state again when the requested data is data possessed by at least one of the
electronic control devices, and outputs the collected data to the server through the
communication terminal and thereafter, also switches over to the sleep mode.
3. The system of remote management of a construction equipment according
to claim 1, wherein when the operation requested by the server is program updating of
the equipment control unit or the electronic control devices,
the communication terminal wakes up the equipment control unit and receives
data required for updating from the server,
the equipment control unit verifies whether the data transmitted from the
server is program updating in the equipment control unit and thereafter, when the data is
its own program updating request, updates the corresponding program and when the
data is not the program updating request in the equipment control unit, verifies an
electronic control device in which program will be updated and thereafter, gives a wake-
up command to the verified electronic control device and when the electronic control
device wakes up, transfers the program updating request signal, and
the verified electronic control device wakes up by the equipment control unit
and thereafter, performs the program updating.
4. The system of remote management of a construction equipment according
to claim 1, wherein when the operation requested by the server is the program updating
of the equipment control unit or the electronic control devices,
the equipment control unit keeps suppling power to the electronic control
device in which program updating is in progress until the program updating is

completed and switches the corresponding electronic control device to the sleep mode
though the operation state is switched from the normal state to the sleep mode state by
receiving a key-off signal during updating a predetermined program, and the rest of the
electronic control devices are immediately switched to the sleep mode state, when a
starting key off signal is applied during updating a predetermined program in a normal
operation state.
5. The system of remote management of a construction equipment according
to claim 3, wherein when the program updating is completed, the updated program is
stored and thereafter, is applied to the equipment from the time of subsequent starting.
6. A method for controlling transmission and reception of data in a starting
key off state of a construction equipment in a system of remote management of the
construction equipment including a construction equipment including a communication
terminal, a equipment control unit, and a plurality of electronic control devices, and a
server transmitting a predetermined data request signal to the communication terminal
through a communication network, the method comprising:
transferring, by the equipment control unit, a sleep mode switching command
to the communication terminal and the electronic control devices and switching
operation states thereof to a sleep mode state, when receiving a key off signal;
transferring, by the communication terminal, a wakeup command to the
equipment control unit and thereafter, transferring the data request signal when the
equipment control unit wakes up, when receiving the data request signal from the server
in the sleep mode state;
judging, by the equipment control unit, whether or not to store requested data
when receiving the data request signal after waking up when receiving the wakeup
command in the sleep mode state;

transmitting, by the equipment control unit, the corresponding data to the
server through the communication terminal, when the equipment control unit stores the
requested data; and
verifying, by the equipment control unit, an electronic control device storing
the corresponding data and waking up the corresponding electronic control device and
thereafter, transmitting data requested by the verified electronic control device to the
server the equipment control unit don't store the requested data.
7. A method for controlling transmission and reception of data in a starting
key off state of a construction equipment in a system of remote management of the
construction equipment including a construction equipment including a communication
terminal, a equipment control unit, and a plurality of electronic control devices, and a
server transmitting a predetermined data request signal to the communication terminal
through a communication network, the method comprising:
requesting, by the server, program updating to the communication terminal;
transmitting, by the communication terminal, a wakeup command to the
equipment control unit and thereafter, transferring the program updating request when
the equipment control unit wakes up, when receiving the program updating request in a
sleep mode;
verifying, by the equipment control unit, whether the program updating
request is a program updating request in the equipment control unit when receiving the
program updating request after waking up when receiving the wakeup command in the
sleep mode state;
updating the corresponding program when the program updating request is the
program updating request in the equipment control unit in accordance with the
verification result;

verifying an electronic control device of which a program will be updated and
thereafter, giving the wakeup command to the verified electronic control device , and
transferring the program updating request signal when the electronic control device
wakes up, when the program updating request is not the program updating request in the
equipment control unit in accordance with the verification result; and
updating, by the verified electronic control device, the corresponding program
when receiving the program updating request signal after waking up when receiving the
wakeup command in the sleep mode.
8. The method for controlling transmission and reception of data in starting
off according to claim 7, further comprising: continuously updating, by the equipment
control unit, the program by using standby power when receiving a key off signal
during updating a predetermined program in a normal operation state and switching,
over to the sleep mode state after the updating is completed.
9. The method for controlling transmission and reception of data in starting
off according to claim 7, further comprising: continuously updating, by the electronic
control device, the program by using standby power when receiving the starting key off
signal during updating a predetermined program in the normal operation state and
switching over to the sleep mode when the updating is completed.
10. The method for controlling transmission and reception of data in starting
off according to any one of claims 7 to 9, further comprising: storing the updated
program and applying the updated program to the equipment from the time of
subsequent starting when the program updating is completed.

The present invention relates to a system and a method of remote
management of a construction equipment for controlling transmission and reception of
data of the construction equipment in a a key-off state. To this end, a system of remote
management of a construction equipment according to the present invention includes a
server communicatable with a communication terminal through a communication
network; and a construction equipment where the communication terminal, a equipment
control unit, and a plurality of electronic control devices are installed, wherein the
communication terminal, the equipment control unit, and the electronic control devices
are supplied standby power from a battery provided in the construction equipment,
when the equipment control unit receives a key-off signal, the equipment control unit
transfers a sleep mode switching command to the communication terminal and the
electronic control devices of which operation modes are switched to a sleep mode, when
the communication terminal wakes up from the sleep mode state at the time of receiving
an operation request from the server and thereafter, wakes up the equipment control unit
and transfers the requested operation of the server, and the equipment control unit
performs the operation singly when performing the operation singly and thereafter,
switches over to the sleep mode when completing the operation, and when the operation
is associated with at least one of the electronic control devices, the equipment control
unit performs the operation by waking up the corresponding electronic control device
and switches the waked up electronic control device to the sleep mode when completing
the operation.