Charging pile failure cause diagnosis method and device

Abstract

The present application provides a method and device for diagnosing the cause of a charging pile failure. The method includes: obtaining the fault type of the target charging pile when the target charging pile fails; inputting the fault type of the target charging pile as a prediction sample into a preset shell The Bayesian network model, and the output of the Bayesian network model is used as the fault cause diagnosis result corresponding to the fault type of the target charging pile; wherein, the Bayesian network model includes the topology of the Bayesian network and the corresponding The conditional probability table, and the topology of the Bayesian network is used to represent the corresponding relationship between each fault type of the charging pile and each fault cause diagnosis result. The application can realize the automatic diagnosis of the cause of the failure of the charging pile, and the diagnosis process is efficient and the diagnosis result is accurate, so that when the charging pile fails, the cause of the failure can be quickly confirmed, and the charging pile can be repaired in a timely and targeted manner .

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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