A Fault Diagnosis Method for Automatic Calibration Line of Power Metering
An automatic verification and fault diagnosis technology, applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problems of difficult to find and find production faults, and achieve the goal of improving fault diagnosis speed, strong fault identification ability, and reducing search space Effect
Active Publication Date: 2019-02-05
STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT +2
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[0003] Aiming at the problems that the production faults of the current electric power metering automatic verification assembly line are difficult to find and deal with, the present invention provides a fault diagnosis method for the electric power metering automatic verification assembly line to improve the fault diagnosis speed of the electric power metering automatic verification assembly line
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as figure 1 The steps of the fault diagnosis method for the automatic verification assembly line of electric power metering shown are as follows:
[0020] 1) According to the physical structure of different automated verification lines, extract the influencing factors that affect the operation of each sub-equipment, and determine the relationship between each node according to the business production process of the automated verification line, and then carry out equipment modeling;
[0021] 2) Analyze the possible failure causes of the influencing factors that affect the operation of each sub-equipment, determine the model nodes by analyzing the influencing factors of the sub-equipment, and judge the influence relationship of each influencing factor on the nodes to form a preliminary SDG model;
[0022] 3) According to the number o...
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The invention discloses an electric metering automatic detecting assembly line fault diagnosis method. Production control policies between assembly lines are mutually independent at present, which severely influences production efficiency, and poses a security risk to automatic production equipment. The method is characterized by, according to physical structures of different automatic detecting assembly lines, extracting influence factors influencing operation of each subdevice; according to automatic detecting assembly line business production flow, determining correlation relation between nodes, and then, carrying out device modeling; forming an initial SDG model; according to the corresponding SDG model and influence factor number, obtaining a corresponding adjacent matrix; judging whether the system can be layered and obtaining a reachable matrix through a Warshall algorithm, and obtaining a hierarchical signed directed graph(HSDG) model; and based on the hierarchical signed directed graph(HSDG) model, carrying out fault reason judgment through backward reasoning. The search space of the effective nodes can be reduced effectively, and thus fault diagnosis speed is improved.
Description
technical field [0001] The invention belongs to the field of electric power metering, in particular to a method for diagnosing faults of an automatic verification assembly line for electric power metering. Background technique [0002] The demand for smart energy meters will increase day by day. The future metrological verification work will not only ensure the quality of verification, but also put forward higher requirements for the number of verification. The current automatic verification assembly line for electric power metering relies on intelligent warehouses to promote production and business circulation, and realizes inventory management, storage and exit, verification and loading, appearance inspection, pressure test, verification and testing, sealing and labeling of measuring instruments, etc. However, due to the fact that the production control strategies between the various assembly lines are independent of each other, congestion and starvation are prone to occur...
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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 沈曙明韩霄汉徐永进严华江周永佳周晨晖韩鑫泽曹志刚安泰魏磊侯艳丽储鹏飞蒋超皇甫高峻李明冉王超
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT