Mining machine movement management system

• US 8,972,094 B2
• Filed: 09/13/2012
• Issued: 03/03/2015
• Est. Priority Date: 11/04/2011
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Itoi, Takashi, Taninaga, Tadashi, Fukasu, Hisataka, Ueda, Takahiro
• Primary Examiner(s): ARTHUR JEANGLAUD, GERTRUDE
• Application Number:
  US13/825,207
• Publication Number:
  US 20140297091A1
• Time in Patent Office: 901 Days
• Field of Search: 701/2, 701/24, 701/36, 701/29.3, 701/32.3, 701/31.5, 340/853.2, 340/854.6, 340/438, 340/439, 340/505
• US Class Current: 701/24
• CPC Class Codes: E02F 9/2054 Fleet management
• CPC Class Codes: E02F 9/267 Diagnosing or detecting failure of vehicles
• CPC Class Codes: G05D 1/0276 using signals provided by a source external to the vehicle involving a plurality of vehicles G05D1/0287; automatically controlling vehicle speed responsive to externally generated signals B60K31/0058
• CPC Class Codes: G06Q 50/02 Agriculture; Fishing; Forestry; Mining
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/50 using a mobile data collecting device, e.g. walk by or drive by
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

An information collection device transmits a position information request command for requesting transmission of position information of a dump truck at a predetermined point in time via a second wireless communication device and determines a state of at least one of the dump truck, a relay that relays communication from a first wireless communication device included in the dump truck to the second wireless communication device, and a travel route of the dump truck based on a response to the position information request command.

Claims

1. A mining machine movement management system comprising:

an in-vehicle information collection device that is mounted on a mining machine to collect operation information on an operation state of the mining machine;

a first wireless communication device that is mounted on the mining machine to perform communication; and

an information collection device that collects the operation information via a second wireless communication device that communicates with the first wireless communication device, wherein

the information collection device transmits a position information request command for requesting transmission of position information about the mining machine to the mining machine at a predetermined point in time via the second wireless communication device, and

the information collection device determines a state of at least one of a device mounted on the mining machine, a relay that relays communication from the first wireless communication device to the second wireless communication device, and a travel route of the mining machine based on a response from the mining machine with respect to the position information request command.

2. The mining machine movement management system according to claim 1, wherein

the information collection device determines an abnormality in the in-vehicle wireless communication device based on the number of times in which the response is received.

3. The mining machine movement management system according to claim 1, wherein

the information collection device specifies a relay that has relayed the operation information from the position information of the mining machine and a received time of the operation information, included in the response at a point in time when the operation state of the mining machine is received, and

the information collection device determines an abnormality in the specified relay based on the number of times in which the specified relay has relayed the operation information.

4. The mining machine movement management system according to claim 3, wherein

when the number of times in which the specified relay has relayed the operation information decreases with time, the information collection device determines presence of an abnormality in the specified relay or presence of a change in the travel route of the mining machine based on the number of times in which the specified relay has relayed the response.

5. The mining machine movement management system according to claim 4, wherein

the information collection device determines whether the travel route of the mining machine has changed based on a change in speed with time of the mining machine.

6. The mining machine movement management system according to claim 3, wherein

when an abnormality has not occurred in the specified relay, the information collection device determines presence of an abnormality in the device mounted on the mining machine based on the operation information and the response.