Equipment parameter monitoring evidence network construction method based on independence analysis and testing

Abstract

According to the equipment parameter monitoring evidence network construction method based on independence analysis and testing, different equipment parameters of target equipment are synchronously acquired by utilizing a plurality of sensors, and each equipment parameter is used as a node in the parameter monitoring evidence network of the target equipment. Wherein all the sensors synchronously sample according to the same time interval within the operation time of the target equipment, and monitoring data obtained by all the sensors through sampling within the operation time of the target equipment are used as node input data of all the nodes. And constructing an undirected evidence network structure model based on the maximum information coefficient among the nodes. And finally, on thebasis of the undirected evidence network model, determining the direction of the undirected edge according to the noise adding model, and constructing an equipment parameter monitoring evidence network corresponding to the target equipment. Historical data of multiple different equipment parameters of the target equipment are detected by using the sensor, and the network structure is constructed based on the historical data, so that the objectivity and the accuracy of the evidence network structure are improved.

Description

technical field [0001] The invention relates to the technical field of multiple information fusion in equipment monitoring, in particular to a method for building an evidence network for equipment parameter monitoring based on independence analysis and testing. Background technique [0002] In the fusion of multiple information in equipment monitoring, data correlation and information uncertainty are ubiquitous. In order to sort out the relationship between multiple information, and then realize the effective fusion of multiple information, it is necessary to consider the relationship between many different types of information that are interconnected and affect each other, as well as various internal and external factors in the process of equipment parameter information collection. Uncertainty due to combined effects. If these uncertainties cannot be described correctly, the relationship between information cannot be described reasonably, and the effective fusion of multip...

AI Technical Summary

Problems solved by technology

Although such a method is simple and fast, it has certain deficiencies and limitations in constructing evidence network structure only relying on domain knowledge. Influence, the accuracy of the results based on such network model analysis and inference is naturally not high

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