Abnormal data detection method and abnormal data detection device

• Main Authors: WU ZHENGZHONG, WANG SHENSHEN, ZHANG HUI, DENG NENGWEN, ZHANG YAN, JIANG ZIWANG, WANG XIAODONG
• Format: Patent
• Language: Chinese; English
• Published: 14.05.2024
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides an abnormal data detection method and an abnormal data detection device. The method comprises the steps that firstly, a log file with a predetermined mark in a line controller is obtained, and the log file comprises parameter data of train parameters in different periods; then, calculating a probability density function value of a train parameter corresponding to the log file; finally, under the condition that the probability density function value is smaller than a preset threshold value, it is determined that abnormal data exist in the log file. By calculating that the probability density function of the parameter corresponding to the log file is smaller than the preset threshold value, it is rapidly judged that the abnormal data exists in the log, the abnormal data can be rapidly captured even if the abnormal data does not cause program exception, then the cause of the abnormal data can be analyzed, and therefore relevant measures can be taken, and the program exception is avoided. T