Health monitoring method, device and equipment of a positioning speed measurement system

Abstract

The present application discloses a health monitoring method of a positioning and speed measuring system, including: obtaining the full width at half maximum of the autocorrelation curve of the variables representing the state of the positioning and speed measuring system; determining each subdivision when subdividing the original matrix according to the full width at half maximum and the number of variables The number of columns of the matrix, where the original matrix is ​​composed of historical data of variables; the original matrix is ​​subdivided into multiple subdivision matrices according to the number of columns, and the multiple subdivision matrices are reconstructed to obtain a random matrix; the positioning is determined according to the random matrix The average spectral radius of the speed measurement system; according to the relationship between the average spectral radius and the preset threshold, determine whether the positioning speed measurement system is healthy. This health monitoring method does not need to know the failure mode, degradation mode and internal mechanism of the positioning speed measurement system, but only needs the historical data of the variable and the full width at half maximum. It has the advantages of small amount of calculation and no prior knowledge. In addition, the present application also provides a health monitoring device, equipment and computer-readable storage medium having the above-mentioned advantages.

Description

technical field [0001] The present application relates to the field of maglev trains, in particular to a health monitoring method, device, equipment and computer-readable storage medium of a positioning and speed measuring system. Background technique [0002] The maglev train is a modern high-tech rail vehicle, which realizes the non-contact suspension and guidance between the train and the track through electromagnetic force, and then uses the electromagnetic force generated by the linear motor to drive the train. [0003] The positioning and speed measurement system is one of the key systems of the maglev train. It is the key to realize the closed-loop traction and operation control of the maglev train by providing real-time relative position information for the train traction system to ensure the efficient traction of the maglev train. Therefore, the positioning and speed measurement system Health monitoring is very important. However, there are very few researches on t...

AI Technical Summary

Problems solved by technology

However, there are very few researches on the health monitoring of positioning and speed measurement systems, and because there are many kinds of positioning and speed measurement systems, and there are even many unknown failure modes and degradation modes, it is difficult to establish different health monitoring standards for all modes.

Images