Mine hoist fault diagnosis method and system based on expert system

A fault diagnosis system and mine hoist technology, applied in elevators, transportation and packaging, etc., can solve problems such as single function and difficulty in finding faults, and achieve the effects of simple programming, good real-time performance, and improved productivity

Inactive Publication Date: 2012-02-22
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a mine hoist fault diagnosis method and system based on an expert system to solve the problem that the existing mine hoist safety protection system has single function and difficult fault finding

Method used

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  • Mine hoist fault diagnosis method and system based on expert system
  • Mine hoist fault diagnosis method and system based on expert system
  • Mine hoist fault diagnosis method and system based on expert system

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] See figure 1 , which is a structural diagram of an embodiment of the mine hoist fault diagnosis system based on the expert system of the present invention, which includes a knowledge base 1 and an inference engine 2, the knowledge base 1 is used to store fault information and corresponding action signals, and the inference engine 2 It is used to compare the collected real-time working status information of the DC motor with the information in the knowledge base 1, and to determine whether the hoist is faulty. The inference engine 2 further includes fourteen general interface chips 3, decoders 4 and programmable interface chips 5, the fourteen general interface chips 3 are all connected to fault information sources, and the decoder 4 is connected to fourteen general interface chips respectively. The chip 3 is connected, and the programmable interface chip 5 is...

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Abstract

The invention provides a mine hoist fault diagnosis method and system based on an expert system. The method comprises the following steps of: (1) arranging a knowledge base for storing fault information and corresponding action signals; (2) monitoring and collecting the working state information of a direct current motor; (3) judging whether a fault exists according to the working state information of the direct current motor; (4) if the fault exists, comparing the fault information sorted in advance with the knowledge base, and obtaining the corresponding action signal; and (5) if no fault exists, circularly monitoring the working state of the motor. The mine hoist fault diagnosis method and system based on the expert system have the advantages of high reliability and capability of effectively prolonging the service life of a machine and increasing the production efficiency.

Description

technical field [0001] The invention relates to a mine hoist fault diagnosis system, in particular to a mine hoist fault diagnosis method and system based on an expert system. Background technique [0002] Mine hoisting equipment is the key equipment in mine production. Whether it can operate safely, economically and efficiently is closely related to its reasonable use, careful maintenance and repair, and scientific monitoring and control. The technical level of the existing coal mine hoists is uneven, and the reasons for the hoist failure are various. Once a failure occurs, it is difficult to make accurate protection actions in time. [0003] The early fault diagnosis device was realized by using the relay circuit, which played a certain role in monitoring and protecting the safe operation of the hoist. Fault protection is divided into two parts: safety braking and alarm. The single protection method causes frequent emergency braking of the system, accelerates mechanical w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02B66B3/00
Inventor 姜建国左东升戴鹏徐亚军吴玮王贵峰罗
Owner SHANGHAI JIAO TONG UNIV
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