WORK MACHINE AND WORK MANAGEMENT SYSTEM

• US 20150240458A1
• Filed: 11/11/2013
• Published: 08/27/2015
• Est. Priority Date: 11/20/2012
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Nagato, Atsushi, Sagawa, Kiyokazu, Sasaki, Ryo
• Granted Patent: US 9,303,390 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E02F 3/435 for dipper-arms, backhoes or the like
• CPC Class Codes: E02F 9/2054 Fleet management
• CPC Class Codes: E02F 9/26 Indicating devices E02F5/145 takes precedence
• CPC Class Codes: E02F 9/264 Sensors and their calibration for indicating the position of the work tool
• CPC Class Codes: E02F 9/267 Diagnosing or detecting failure of vehicles
• CPC Class Codes: G07C 5/085 using electronic data carriers
• CPC Class Codes: G07C 5/10 using counting means or digital clocks

Abstract

A work machine includes: a work state detection unit detecting a physical amount; a time integration unit calculating a time integration value; a determination unit associating the time integration value with a predetermined operating angle of an excavation-loading mechanism and determining that an operation of an operation lever is performed at a time the time integration value is not smaller than a predetermined integration value; a counting unit performing accumulation adding with number of times of loading as once at a time each operation is an excavation-loading work performed in an order of: an excavation operation; a forward swing operation; a soil discharge operation; and a backward swing operation; a default setting unit setting a bucket capacity; a workload calculation unit calculating a workload by multiplying the number of times of loading by the bucket capacity; and an output unit outputting the workload.

Claims

1. A work machine comprising:

a work state detection unit configured to detect a physical amount output in response to an operation of an operation lever;

a time integration unit configured to calculate a time integration value by performing time-integration of the physical amount;

a determination unit configured to associate the time integration value with a predetermined operating angle of an excavation-loading mechanism, the operation angle being associated with the operation of the operation lever and to determine that the operation of the operation lever is performed at a time the time integration value is not smaller than a predetermined integration value;

a counting unit configured to perform accumulation adding with number of times of loading as once at a time each operation, of the excavation-loading mechanism, determined by the determination unit is an excavation-loading work performed in an order of;

an excavation operation;

a forward swing operation;

a soil discharge operation; and

a backward swing operation;

a default setting unit configured to set a bucket capacity;

a workload calculation unit configured to calculate a workload by multiplying the number of times of loading by the bucket capacity; and

an output unit configured to at least output the workload.

2. The work machine according to claim 1, wherein

the default setting unit is configured to further set a default including number of a collectors and a payload of a collector, and

the work machine further comprises:

a soil amount calculation unit configured to calculate a soil amount by multiplying the number of collectors by the payload of the collector;

a working rate calculation unit configured to calculate a working rate based on the workload and the soil amount; and

an output unit configured to at least output the working rate.

3. The work machine according to claim 1, wherein

the counting unit is configured to measure basic excavation and loading time which is time necessary for a series of excavation-loading work on which time accumulation adding is performed, and

the output unit is configured to output operation time of the work machine including the basic excavation and loading time.

4. The work machine according to claim 1, wherein the output unit is configured to output the number of times of loading.

5. The work machine according to claim 1, further comprising

a setting changing unit configured to change various set values necessary for determination of the series of excavation-loading work, wherein

the setting changing unit can change various set values.

6. The work machine according to claim 5, wherein

various set values are values previously calculated by a teaching operation.

7. The work machine according to claim 1, further comprising

an operator identification unit configured to perform individual authentication of an operator, and

a storage unit configured to associate operator identification information with number of times of loading of each operator and store the operator identification information associated with the number of times of loading of each operator.

8. The work machine according to claim 1, wherein

the operation lever is a pilot type or an electric type, and

the physical amount is a pilot pressure or an electric signal.

9. A work management system comprising:

at least one work machine including;

a work state detection unit configured to detect a physical amount output in response to an operation of an operation lever;

a time integration unit configured to calculate a time integration value by performing time-integration of the physical amount;

a determination unit configured to associate the time integration value with a predetermined operating angle of an excavation-loading mechanism, the operation angle being associated with the operation of the operation lever and to determine that the operation of the operation lever is performed at a time the time integration value is not smaller than a predetermined integration value;

a counting unit configured to perform accumulation adding with number of times of loading as once at a time each operation, of the excavation-loading mechanism, determined by the determination unit is an excavation-loading work performed in an order of;

an excavation operation;

a forward swing operation;

a soil discharge operation; and

a backward swing operation and also configured to measure basic excavation and loading time which is time necessary for a series of excavation-loading work on which time accumulation adding is performed; and

a work machine-side communication unit configured to communicate with a server side and to at least output the number of times of loading and the basic excavation and loading time; and

a server including;

a default setting unit configured to set a bucket capacity;

a workload calculation unit configured to calculate a workload by multiplying the number of times of loading by the bucket capacity;

an output unit configured to at least perform a display output of the workload; and

a server-side communication unit configured to communicate with the at least one work machine.

10. The work management system according to claim 9, wherein

the default setting unit is configured to further set a default including number of collectors and a payload of a collector, and

the work management system further comprises:

a soil amount calculation unit configured to calculate a soil amount by multiplying the number of collectors by the payload of the collector;

a working rate calculation unit configured to calculate a working rate based on the workload and the soil amount; and

an output unit configured to at least perform a display output of the working rate.

11. The work management system according to claim 10, wherein the working rate calculated by the working rate calculation unit is displayed on a display apparatus of a terminal which can access the server, and at least one of a daily working rate of a specific work machine, a working rate of each operator, a working rate of each of a plurality of work machines, and a working rate of each construction site is displayed as the working rate.

12. The work management system according to claim 9, wherein the basic excavation and loading time output from the work machine-side communication unit with respect to at least one of a specific work machine in each day, each operator, each of a plurality of work machines, and each construction site is displayed on a display apparatus of a terminal which can access the server.