WORK MACHINE, MANAGEMENT SYSTEM AND MANAGEMENT METHOD

• US 20150163101A1
• Filed: 12/11/2013
• Published: 06/11/2015
• Est. Priority Date: 12/11/2013
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Watanabe, Mio
• Granted Patent: US 10,541,875 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E02F 9/2054 Fleet management
• CPC Class Codes: E02F 9/26 Indicating devices E02F5/145 takes precedence
• CPC Class Codes: G06F 8/71 Version control security arrangements therefor G06F21/57; Configuration management
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies

Abstract

A work machine includes: an electronic device; a signal line to which the electronic device is connected; a memory unit which stores at least identification information for identifying the electronic device; a communication unit which wirelessly communicates to an outside of the work machine; and a processing unit, wherein when the identification information acquired from the electronic device via the signal line is different from the identification information stored in the memory unit, the processing unit stores the identification information acquired from the electronic device in the memory unit and transmits the acquired identification information to the outside of the work machine via the communication unit.

Claims

1. A work machine comprising:

an electronic device;

a signal line to which the electronic device is connected;

a memory unit which stores at least identification information for identifying the electronic device;

a communication unit which wirelessly communicates to an outside of the work machine; and

a processing unit, wherein

when the identification information acquired from the electronic device via the signal line is different from the identification information stored in the memory unit, the processing unit stores the identification information acquired from the electronic device in the memory unit and transmits the acquired identification information to the outside of the work machine via the communication unit.

2. The work machine according to claim 1, wherein

a sub-electronic device is connected to the electronic device,

the memory unit stores identification information for identifying the sub-electronic device, and

when the identification information of the sub-electronic device which is acquired via the signal line and the electronic device is different from the identification information stored in the memory unit, the processing unit stores the identification information acquired from the sub-electronic device in the memory unit and transmits the acquired identification information to the outside of the work machine via the communication unit.

3. The work machine according to claim 1, wherein

the identification information of the electronic device includes part identification information as information for identifying a part of a controlled object which is controlled by the electronic device,

the memory unit stores the part identification information, and

when the part identification information acquired from the electronic device via the signal line is different from the part identification information stored in the memory unit, the processing unit stores the part identification information acquired from the electronic device in the memory unit and transmits the acquired part identification information to the outside of the work machine via the communication unit.

4. The work machine according to claim 1, further comprising:

a power supply which supplies power to the electronic device and the processing device; and

a switch which is provided between the power supply, and the electronic device and the processing device to turn on and off the power, wherein

the processing unit acquires the identification information from the electronic device connected to the signal line at a timing when the switch operates to supply the power.

5. A work machine comprising:

an electronic device;

a signal line to which the electronic device is connected;

a memory unit which stores at least identification information for identifying the electronic device;

a communication unit which wirelessly communicates to an outside of the work machine;

a processing unit which acquires the identification information from the electronic device connected to the signal line;

a power supply which supplies power to the electronic device, the processing unit, and the communication unit; and

a switch which is provided between the power supply, and the electronic device and the processing unit to turn on and off the power, wherein

the processing unit acquires the identification information from the electronic device connected to the signal line at a timing when the switch operates to supply the power, and

when the acquired identification information is different from the identification information stored in the memory unit, the processing unit stores the identification information acquired from the electronic device in the memory unit and transmits the acquired identification information to the outside of the work machine via the communication unit.

6. A management system comprising:

a work machine which includes an electronic device, a signal line to which the electronic device is connected, a first memory unit which is connected to the signal line and stores at least identification information for identifying the electronic device, a first communication device which wirelessly communicates to an outside of the work machine, and a processing unit which acquires the identification information from the electronic device; and

a management device which includes a second communication device which communicates with the first communication device and a second memory unit which stores at least identification information for identifying the electronic device, the management device exchanging information with the processing device via the second communication device and the first communication device, wherein

when the identification information acquired from the electronic device via the signal line is different from the identification information stored in the first memory unit, the processing unit stores the identification information acquired from the electronic device in the first memory unit and transmits the acquired identification information to the management device via the first communication device and the second communication device, and

the management device updates the identification information of the second memory unit using the identification information of the electronic device acquired via the second communication device.

7. The management system according to claim 6, wherein

the identification information includes a plurality of types of information, and

the management device changes the plurality of types of information, which are acquired by the processing unit, via the second communication device and the first communication device.

8. A management method of the management system of claim 6 comprising:

acquiring, at a timing when an electronic device provided in a work machine is supplied with power, identification information of the electronic device from the electronic device via a signal line provided in the work machine; and

transmitting the acquired identification information to an outside of the work machine when the acquired identification information is different from identification information which is stored so far in a memory unit provided in the work machine.