Error comprehensive diagnosis method and device for mass transit device maintenance system
A technology for equipment maintenance and comprehensive diagnosis, which is applied in the direction of measuring devices, instruments, etc., can solve complex fault diagnosis and other problems, achieve the effect of expanding the detectable range, reducing the incidence of faults, and improving maintenance work efficiency
Inactive Publication Date: 2007-05-23
上海轨道交通设备发展有限公司
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[0007] The present invention aims to provide a comprehensive fault diagnosis method and device for a rail transit equipment maintenance system to solve the complex fault diagnosis problem in the rail transit equipment system, improve the reliability of equipment operation, and reduce the incidence of faults
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[0031] Referring to Fig. 1, a kind of rail transit equipment maintenance system fault comprehensive diagnosis method of the present invention comprises the following steps:
[0032] 1) Divide equipment based on the principle of equipment maintenance unit, determine the minimum maintenance unit, and use the minimum maintenance unit as the basic unit to enter its data, including the service life of the minimum maintenance unit, the average trouble-free working time or the rated value of the number of actions (life) , optimal operating status curve analysis charts, operating experience values, and various thresholds for diagnostic alarms, etc.
[0033] For example: In the electromechanical equipment system, air conditioning units, fresh air fans, tunnel ventilation, chillers, elevators, screen door systems, and access control systems are the minimum maintenance units. In the power monitoring system, switch cabinets, transformers, and rail potential limiting devices are set as the...
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A fault synthesis diagnosis method and device for city orbital traffic equipment maintenance system, the method is: first, divides equipments with the principle of equipment maintenance unit, determines the smallest maintenance unit, and inputs their information using the smallest maintenance unit as basic unit; following, determines the collected equipment state information, judges the abundant amount of the said information, and if the information amount is not enough, ensures to add equipment measuring points or the relationship among relevant equipments to consummate the state information; meanwhile, establishes the discrimination formula or threshold; and by direct discrimination, indirect discrimination, trend discrimination and life discrimination model, processes whether to alarm or pre-alarm discrimination. The invention synthesis uses the four categories discrimination models, expands the detectable scope, and takes system maintenance work as the overall concept, to achieve the effect of reasonable arrangement primary and secondary, and melting the relevance considering method. The invention has both fault alarm and fault pre-alarm, to reduce the failure occurrence rate, and also it enables managers timely grasping the equipment health information, to improve the efficiency of maintenance work.
Description
technical field [0001] The invention relates to a comprehensive fault diagnosis method and device for an urban rail transit equipment maintenance system. Background technique [0002] Urban rail transit automation technology covers a very wide range, including signal, communication (including transmission, CCTV, wired telephone, wireless telephone, broadcasting), electric power, environment and equipment system, disaster prevention automatic alarm system, automatic fare collection, screen door, passenger information systems etc. And it is a geographically dispersed SCADA system, the monitoring network is a wide area network, and it is an event-driven monitoring system. [0003] At present, the rail transit monitoring system has changed the multi-island structure into a comprehensive structure, and related disciplines share a unified monitoring platform, peripheral equipment is shared throughout the system, and a unified software platform is shared. Considering the manageme...
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Inventor 韩玉雄吴坚何红欣王志
Owner 上海轨道交通设备发展有限公司