System for managing mining machine and method for managing mining machine

Patent metadata

Field	Value
Publication number	US-9697654-B2
Application number	US-201414443456-A
Country	US
Kind code	B2
Filing date	Oct 30, 2014
Priority date	Oct 30, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A system for managing a mining machine is included in a mining machine that travels in a mine. The system includes: a positional information detecting unit configured to acquire positional information indicating a position of the mining machine; and a traveling path calculating unit configured to obtain, from each of a plurality of the mining machines, positional information about an actual traveling path on which each of the mining machines actually has traveled, and generate a reference traveling path in the mine with the obtained positional information.

First claim

The invention claimed is:

1. A system for managing a mining machine, the system comprising:
a positional information detecting unit included in a mining machine that travels in a mine, and configured to acquire positional information indicating a position of the mining machine;
a pressure sensor configured to measure a load acting on a wheel included in the mining machine;
a traveling path calculating unit configured to obtain, from each of a plurality of mining machines including the mining machine, positional information about an actual traveling path on which each of the mining machines has actually traveled, and to generate a reference traveling path in the mine by approximating a plurality pieces of the obtained positional information; and
an estimating unit configured to estimate damage to the wheel included in the mining machine from the positional information about the reference traveling path, an actual traveling speed at which the mining machine has traveled, the load acting on the wheel, and a curvature radius of a curve in the actual traveling path.

2. A system for managing a mining machine, the system comprising:
a positional information detecting unit included in a mining machine that travels in a mine, and configured to acquire positional information indicating a position of the mining machine;
a pressure sensor configured to measure a load acting on a wheel included in the mining machine; and
a reference traveling path storing unit configured to store information about a reference traveling path in the mine, the information being generated by approximating a plurality pieces of positional information that is about actual traveling paths on which a plurality of mining machines including the mining machine actually have traveled and that is detected with the positional information detecting unit; and
an estimating unit configured to estimate damage to the wheel included in the mining machine from the positional information about the reference traveling path, an actual traveling speed at which the mining machine has traveled, the load acting on the wheel, and a curvature radius of a curve in the actual traveling path.

3. The system for managing a mining machine according to claim 1 ,
wherein when the traveling path calculating unit newly obtains the positional information about the actual traveling path, the traveling path calculating unit regenerates the reference traveling path with the positional information including also the newly obtained positional information about the actual traveling path.

4. The system for managing a mining machine according to claim 1 ,
wherein the damage is expressed by an expression (1),
DM=k×LD×V 2 /R   (1), and

the DM indicates the damage, the k indicates a constant of proportion, the LD indicates the load acting on the wheel, the V indicates the actual traveling speed, and the R indicates a curvature radius of a curve in the reference traveling path.

5. The system for managing a mining machine according to claim 1 ,
wherein the estimating unit estimates the damage in a whole path on which the mining machine leaves a first position and moves to a second position at which materials are loaded on the mining machine, or in a whole path on which the mining machine leaves the second position and moves to a third position at which the mining machine dumps the materials.

6. The system for managing a mining machine according to claim 1 ,
wherein the estimating unit estimates the damage in a whole path on which the mining machine leaves a first position and moves to a third position at which the mining machine dumps materials through a second position at which the materials are loaded on the mining machine.

7. The system for managing a mining machine according to claim 1 , the system further comprising:
a report generating unit configured to generate a report about the estimated damage to the wheel.

8. A method for managing a mining machine, the method comprising:
acquiring, with a unit included in a mining machine that travels in a mine, positional information indicating a position of the mining machine;
measuring, with a pressure sensor, a load acting on a wheel included in the mining machine;
obtaining, from each of a plurality of mining machines including the mining machine, positional information about an actual traveling path on which each of the mining machines has traveled, and generating a reference traveling path in the mine by approximating a plurality pieces of the obtained positional information; and
estimating damage to the wheel included in the mining machine from the positional information about the reference traveling path, an actual traveling speed at which the mining machine has traveled, the load acting on the wheel, and a curvature radius of a curve in the actual traveling path.

9. The method for managing a mining machine according to claim 8 , further comprising:
regenerating, when the positional information about the actual traveling path is newly obtained, the reference traveling path with the positional information including also the newly obtained positional information about the actual traveling path.

10. The method for managing a mining machine according to claim 9 , further comprising:
generating a report about the estimated damage to the wheel.

11. The system for managing a mining machine according to claim 2 , the system further comprising:
an estimating unit configured to estimate damage to a wheel included in the mining machine from the positional information about the reference traveling path, an actual traveling speed at which the mining machine has traveled, and a load acting on the wheel.

12. The system for managing a mining machine according to claim 11 ,
wherein the damage is expressed by an expression (1),
DM=k×LD×V 2 /R   (1), and

the DM indicates the damage, the k indicates a constant of proportion, the LD indicates the load acting on the wheel, the V indicates the actual traveling speed, and the R indicates a curvature radius of a curve in the reference traveling path.

13. The system for managing a mining machine according to claim 12 ,
wherein the estimating unit estimates the damage in a whole path on which the mining machine leaves a first position and moves to a second position at which materials are loaded on the mining machine, or in a whole path on which the mining machine leaves the second position and moves to a third position at which the mining machine dumps the materials.

14. The system for managing a mining machine according to claim 11 ,
wherein the estimating unit estimates the damage in a whole path on which the mining machine leaves a first position and moves to a third position at which the mining machine dumps materials through a second position at which the materials are loaded on the mining machine.

15. The system for managing a mining machine according to claim 11 , the system further comprising:
a report generating unit configured to generate a report about the estimated damage to the wheel.

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Asada Hisashi
• Doishita Kenji
• Tsubone Dai
• Akiyama Tetsuya
• Kurokawa Ryomei

Classifications

• G06Q10/06 Primary

  Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling · CPC title

• G07C5/02 Primary

  Registering or indicating driving, working, idle, or waiting time only (apparatus forming part of taximeters G07B13/00) · CPC title

• G01L5/00

  Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes · CPC title

• E21F13/00

  Transport specially adapted to underground conditions (mine cars B61D; transport in general, loading {unless specially adapted to underground conditions} B65G) · CPC title

• G07C5/0808

  Diagnosing performance data (testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005) · CPC title