WORK MACHINE

• US 20150371464A1
• Filed: 07/22/2013
• Published: 12/24/2015
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Fujimori, Toshiyuki, Sugimura, Shunsuke
• Granted Patent: US 9,905,062 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E02F 9/2054 Fleet management
• CPC Class Codes: E02F 9/267 Diagnosing or detecting failure of vehicles
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/0841 Registering performance data recording measured values G01D; information storage G11B
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

The work machine includes a controller including a first storage unit capable of storing work machine information and capable of rewriting the stored work machine information, and a processing unit configured to collect the work machine information, and when trigger information for causing the first storage unit to start storing the work machine information occurs, the processing unit causes at least a portion of the collected work machine information to be stored to the first storage unit. The first storage unit stores header information. At a time when the trigger information occurs, the processing unit generates the work machine data from the collected work machine information in accordance with the header information and stores the work machine data to the first storage unit.

Claims

1. A work machine comprising:

a controller including;

a storage unit capable of storing work machine information which is information about the work machine; and

a processing unit configured to collect the work machine information, and when trigger information for causing the storage unit to start storing the work machine information occurs, the processing unit causes at least a portion of the collected work machine information to be stored to the storage unit,

wherein the storage unit stores definition information which is information for generating work machine data including time-series data in which data collected at multiple points in time are selected for at least one type of work machine information from among multiple types of the work machine information, trigger time data which includes at least one piece of work machine information of a type different from the time-series data, in which data collected at a time when the trigger information occurs is selected, and a number of pieces of work machine information per one type is less than the time-series data, and

at a time when the trigger information occurs, the processing unit generates the work machine data from the work machine information collected according to the definition information, and stores the work machine data to the storage unit.

2. The work machine according to claim 1, wherein the trigger time data are one piece of data for one type of work machine information.

3. The work machine according to claim 1, wherein the definition information can be rewritten by an external unit provided outside of the controller.

4. The work machine according to claim 1, wherein the trigger time data include at least an external air temperature, an atmospheric pressure, and position information about the work machine.

5. The work machine according to claim 1, further comprising a plurality of the controllers, wherein each of the controllers can individually set the definition information.

6. The work machine according to claim 1, further comprising a communication unit for communicating with the external unit provided outside of the controller,

wherein the definition information can be rewritten by the external unit provided outside of the controller by wireless communication via the communication unit.

7. The work machine according to claim 1, wherein the trigger time data are described in a region provided at a head of the time-series data and describing at least information for interpreting the time-series data.

13. The work machine according to claim 1, wherein, for a same type of work machine information, the processing unit generates multiple different pieces of work machine data having different combinations of a number of pieces of work machine information collected by the processing unit before the trigger information, a number of pieces of work machine information collected by the processing unit after the trigger information, and a time interval with which the processing unit collects the work machine information.

14. The work machine according to claim 1, wherein the type of the work machine information can be changed.

15. The work machine according to claim 14, wherein the storage unit stores multiple types of definition information.

16. The work machine according to claim 15, wherein the multiple types of definition information can be changed individually from an external unit provided outside of the controller.

8. A work machine comprising:

a controller including;

a storage unit capable of storing work machine information which is information about the work machine; and

a processing unit configured to collect the work machine information, and when trigger information for causing the storage unit to start saving the work machine information occurs, the processing unit causes at least a portion of the collected work machine information to be stored to the storage unit,

wherein the storage unit stores definition information which is information for generating work machine data including time-series data in which data collected at multiple points in time are selected for at least one type of work machine information from among multiple types of the work machine information, trigger time data which includes at least one piece of work machine information of a type different from the time-series data and in which data collected at a time when the trigger information occurs is selected,

at a time when the trigger information occurs, the processing unit generates the work machine data from the work machine information collected according to the definition information, and stores the work machine data to the storage unit, and

the storage unit is different from a storage unit for storing a command for executing operation in which the processing unit causes the work machine information to be stored to the storage unit.

9. The work machine according to claim 8, wherein, for a same type of work machine information, the processing unit generates multiple different pieces of work machine data having different combinations of a number of pieces of work machine information collected by the processing unit before the trigger information, a number of pieces of work machine information collected by the processing unit after the trigger information, and a time interval with which the processing unit collects the work machine information.

10. The work machine according to claim 8, wherein the type of the work machine information can be changed.

11. The work machine according to claim 10, wherein the storage unit stores multiple types of definition information.

12. The work machine according to claim 11, wherein the multiple types of definition information can be changed individually from an external unit provided outside of the controller.