Charging pile fault prediction method and device based on Markov chain

Abstract

The invention provides a charging pile fault prediction method and device based on a Markov chain, and the method comprises: obtaining a state vector of a target charging pile in an initial time period, and enabling the state vector to serve as the initial state probability distribution of a preset charging pile Markov chain prediction model; wherein the Markov chain prediction model of the charging pile is used for representing a discrete event random process in which a non-fault state and at least one fault state of the charging pile are mutually converted and different fault states of the charging pile are mutually converted; and according to the initial state probability distribution and the Markov chain prediction model, determining the probability that the target charging pile has atleast one fault in a prediction time period. Automatic fault prediction of the charging pile can be achieved, the prediction process is efficient, the prediction result is accurate, and then timely and targeted maintenance can be conducted on the fault of the charging pile.

Description

technical field [0001] The present application relates to the technical field of charging pile equipment, in particular to a Markov chain-based charging pile fault prediction method and device. 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 find the faults of charging piles and repair them in time has become an important research method in the subject of ensuring the operation quality of charging piles. [0003] In the prior art, the fault detection method of the charging pile is usually realized by manual planned inspection of the charging pile. If a fault is found during the inspection, the faulty charging pile will be repaired. [0004] Ho...

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Problems solved by technology

[0004] However, due to the existing fault detection method of charging piles, faults are discovered through manual planned inspections. This method can only be repaired after the faults are detected by manual inspections, making the maintenance of charging piles passive and inefficient. , In addition, due to the lack of customization basis for the manual planned inspection strategy, it is easy to lead to excessive inspection and lack of inspection, resulting in waste of resources and misallocation

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