Method and device for diagnosing fault reason of charging pile

Abstract

The invention provides a method and a device for diagnosing fault reason of a charging pile. The method comprises the following steps: the fault type of a target charging pile is acquired when the target charging pile breaks down; the fault type of the target charging pile is used as a prediction sample to be input to a preset bayesian network model, and the output of the bayesian network model isused as a fault reason diagnosis result corresponding to the fault type of the target charging pile, wherein the bayesian network model comprises a topological structure of the bayesian network and acorresponding condition probability table, and the topological structure of the bayesian network is used for expressing the corresponding relation between each fault type of the charging pile and each fault reason diagnosis result. According to the method and the device, automatic diagnosis of the fault reason of the charging pile can be realized, the diagnosis process is efficient, the diagnosisresult is accurate, further, the cause for fault occurrence can be quickly confirmed when the charging pile breaks down, and the charging pile can be maintained in time and in a targeted mode.

Description

technical field [0001] The present application relates to the technical field of charging pile equipment, in particular to a method and device for diagnosing the cause of a charging pile failure. Background technique [0002] With the rapid development of science and technology and the increasing awareness of people's environmental protection, more and more electric vehicles are favored by people. As an important supporting equipment for electric-driven vehicles, charging piles have also emerged as the times require. As more and more charging piles are put into use, how to confirm the cause of the failure of the charging pile and repair it in time has become an important research method in the subject of ensuring the operation quality of the charging pile. [0003] In the prior art, the diagnosis of the cause of the fault of the charging pile is usually realized by manual planned maintenance of the charging pile. If a fault is found during the inspection process, the cause ...

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Problems solved by technology

[0004] However, since the existing charging pile fault diagnosis method is to determine the cause of the fault through manual planned maintenance, this method can only be confirmed after manual maintenance and troubleshooting, so that the diagnosis of the fault cause of the charging pile The process is passive and inefficient. In addition, due to the lack of customization basis for manual planned inspection strategies, it is easy to lead to over-maintenance and under-maintenance, resulting in resource waste and misallocation.

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