LOGGING SYSTEM FOR A MINING MACHINE, AN ON-BOARD TERMINAL DEVICE, AND A LOGGING METHOD FOR A MINING MACHINE
First Claim
1. A logging system for a mining machine that travels along a target route, the logging system comprising:
- a position calculating device that measures a position of the mining machine as an own mining machine and outputs own mining machine position information, andan on-board terminal device that stores log data indicative of travel conditions of the mining machine;
wherein the on-board terminal device comprises;
a volatile storage unit that upon generating of the log data, temporarily store the log data,a non-volatile storage unit that continues to store immediately-preceding log data, which have been extracted from the log data temporarily stored in the volatile storage unit, until an instruction for data erasure is received,a map data storage unit that stores map data indicative of the target route,an error calculation unit that calculates an amount of positional offset of the own mining machine relative to the target route on a basis of the map data and the own mining machine position information,a departure determination unit which determines that the own mining machine has departed from the target route if the calculated amount of positional offset has increased to a permissible amount of offset, at which the own machine is considered to be traveling on the target route, or greater, anda data storage destination management unit that, if the departure determination unit determines to have departed, extracts immediately-preceding log data, which have been stored from before and until a time point of the departure, out of the log data temporarily stored in the volatile storage unit, archives and stores the immediately-preceding log data in the non-volatile storage unit, and stores log data, which would be outputted after the time point of the departure, in the non-volatile storage unit.
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Accused Products
Abstract
An on-board terminal device includes a volatile storage unit, a non-volatile storage unit, a map data storage unit that stores map data indicative of a target route, an error calculation unit that calculates an amount of positional offset of own mining machine from the target route on a basis of the map data and own mining machine position information, a departure determination unit which determines that the own mining machine has departed from the target route, and a data storage destination control unit that, if the departure determination unit determines to have departed, extracts log data out of the log data stored in the volatile storage unit, archives and stores the extracted log data in the non-volatile storage unit, and also stores log data, which would be outputted after the time point of the departure, in the non-volatile storage unit.
7 Citations
9 Claims
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1. A logging system for a mining machine that travels along a target route, the logging system comprising:
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a position calculating device that measures a position of the mining machine as an own mining machine and outputs own mining machine position information, and an on-board terminal device that stores log data indicative of travel conditions of the mining machine; wherein the on-board terminal device comprises; a volatile storage unit that upon generating of the log data, temporarily store the log data, a non-volatile storage unit that continues to store immediately-preceding log data, which have been extracted from the log data temporarily stored in the volatile storage unit, until an instruction for data erasure is received, a map data storage unit that stores map data indicative of the target route, an error calculation unit that calculates an amount of positional offset of the own mining machine relative to the target route on a basis of the map data and the own mining machine position information, a departure determination unit which determines that the own mining machine has departed from the target route if the calculated amount of positional offset has increased to a permissible amount of offset, at which the own machine is considered to be traveling on the target route, or greater, and a data storage destination management unit that, if the departure determination unit determines to have departed, extracts immediately-preceding log data, which have been stored from before and until a time point of the departure, out of the log data temporarily stored in the volatile storage unit, archives and stores the immediately-preceding log data in the non-volatile storage unit, and stores log data, which would be outputted after the time point of the departure, in the non-volatile storage unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An on-board terminal device to be mounted on a mining machine, which travels along a target route, for storing log data indicative of travel conditions of the mining machine, the on-board terminal device comprising:
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a volatile storage unit that upon generation of the log data, temporarily store the log data, a non-volatile storage unit that continues to store immediately-preceding log data, which have been extracted from the log data temporarily stored in the volatile storage unit, until an instruction for data erasure is received, a map data storage unit that stores map data indicative of the target route, an error calculation unit that calculates an amount of positional offset of the mining machine as an own mining machine relative to the target route on a basis of the map data and own mining machine position information obtained by measuring a position of the own mining machine, a departure determination unit which determines that the own mining machine has departed from the target route if the calculated amount of positional offset has increased to a permissible amount of offset, at which the own machine is considered to be passing on the target route, or grater, and a data storage destination management unit that, if the departure determination unit determines to have departed, extracts immediately-preceding log data, which have been stored from before and until a time point of the departure, out of the log data temporarily stored in the volatile storage unit, archives and stores the immediately-preceding log data in the non-volatile storage unit, and stores log data, which would be outputted after the time point of the departure, in the non-volatile storage unit.
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8. A logging method for a mining machine to store log data indicative of travel conditions of the mining machine by using a volatile storage device and a non-volatile storage device both of which are mounted on the mining machine, the logging method comprising the following steps:
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temporarily storing log data, in which image data generated by capturing images of peripheral of the mining machine as an own mining machine with an image capture device and travel control data indicative of operational conditions of the mining machine during traveling are synchronized, in the volatile storage device, calculating, on a basis of own mining machine position information obtained by measuring a position of the own machine and map data indicative of a predetermined target route for the own mining machine, an amount of positional offset of the own mining machine relative to the target route, determining that the own mining machine has departed from the target route if the calculated amount of positional offset has increased to a permissible amount of offset, at which the own mining machine is considered to be traveling on the target route, or greater and if determined to have departed, extracting immediately-preceding log data, which have been stored from before and until a time point of the departure, out of the log data temporarily stored in the volatile storage device, archiving and storing the immediately-preceding log data in the non-volatile storage device, and storing log data, which would be outputted after the time point of the departure, in the non-volatile storage device. - View Dependent Claims (9)
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Specification