Turnout health state evaluation method based on dynamic time warping

• Main Authors: HAN ANPING, WANG NING, QIN YONG, ZHANG HUIYUE, XU DENGKE, KAN JIAYU, WANG ZHIPENG, JIA LIMIN
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a turnout health state evaluation method based on dynamic time warping. The method comprises the following steps: firstly, selecting an improved tanh function as a health assessment basic function according to mechanical characteristics of a turnout; setting a fitness function, calculating electric power data of normal operation of the turnout by using a dynamic time warpingalgorithm to obtain an average similarity distance, and then taking a new function as a CV (health degree index) for calculating the operation state of the turnout by calculating fitness parameters;and finally, respectively calculating electric power data of each running state of the turnout by using dynamic time warping and an improved xtanh function to obtain a similarity distance and a CV value. The health state of the turnout can be accurately evaluated, the evaluation is accurate, the method is convenient and reliable, and the method has obvious practical application value. 本发明提供一种基于动态时间规整的道岔健康状态评估方法，首先，根据道岔的机械特