Hotbox distinguishing method for train infrared shaft-temperature detecting system

Abstract

The invention provides a hot shaft distinguishing method for a train infrared shaft temperature probing system. The hot shaft temperatures are abnormal values of the train shaft temperatures which are statistically distributed; therefore, the hot shaft has great distance away from the average value; the distance from the shaft temperature to the average shaft temperature can be taken as a criterion for the hot shaft distinguishing. All the shaft temperatures on the same side of the train are taken as a group of samples; by adopting the temperature increment and the revin temperature incrementvariance, the vehicle temperature increment variance or the temperature increment and the revin temperature increment variance and the vehicle temperature increment as the criterion of the hot shaft distinguishing; by taking all the shaft temperatures on the same side of the train as a group of samples, the physical meaning is definite, the calculation is simple and the distinguishing result is exact. The method can be adopted to the train infrared shaft temperature probing system which adopts a photon probe, or can be adopted to the train infrared shaft temperature probing system which adopts other train shaft temperature probing system.

Description

A Thermal Axis Discrimination Method for a Train Infrared Axis Temperature Detection System technical field The invention belongs to the field of railway infrared equipment, and relates to a train bearing fault discrimination technology, in particular to a thermal shaft discrimination technology of a train shaft temperature detection system. Background technique Excessive temperature of the train axle box is one of the symptoms of train axle failure. The train infrared shaft temperature detection system can detect the temperature of the axle box of the running train, judge whether the vehicle bearing is faulty according to the shaft temperature, and avoid train operation accidents caused by the fault of the train vehicle bearing. It is one of the important methods to ensure the safety of train operation. It detects the infrared radiation of each axle box when the train passes through the infrared probes installed on both sides of the rail, and calculates the temperature of...

AI Technical Summary

Problems solved by technology

The column-to-vehicle ratio calculated in this way is related to the average temperature rise and cannot be used as a criterion

Images