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 increment variance, 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

Technical field [0001] The invention belongs to the field of railway infrared equipment, and relates to a train bearing fault discrimination technology, in particular to a hot axle discrimination technique of a train axle temperature detection system. Background technique [0002] Excessive temperature of the train axle box is one of the symptoms of train axle failure. The infrared axle temperature detection system of the train can detect the axle box temperature of the running train, and judge whether the bearing of the vehicle is faulty based on the axle temperature, and avoid train operation accidents caused by the bearing failure of the train vehicle. It is one of the important methods to ensure the safety of train operation. It uses infrared probes installed on both sides of the rail to detect the infrared radiation of each axle box when the train passes, and through the calculation of the detection system, it gives the temperature of each axle box, and judges whether there ...

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

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