Axle temperature monitoring method and system for railway vehicles

Abstract

The embodiment of the invention provides an axle temperature monitoring method and system for a railway vehicle, and relates to the field of axle temperature measurement; the axle temperature monitoring method comprises the following steps: each electronic tag measures and stores the axle temperature of the railway vehicle where each electronic tag is located based on an electric energy acquisition condition and a corresponding electric energy acquisition time of each electronic tag, wherein each electronic tag also stores pre-stored data comprising a tag TID / EPC code, temperature calibrationdata, and data related to an axle number, a bearing position number, an axle model, a bearing model and the like where a tag installation position is located; an electronic tag reader obtains the axletemperature and pre-stored data of the railway vehicle where each electronic tag is located, wherein the axle temperature and pre-stored data are stored in each electronic tag; and alarm informationis determined based on the axle temperature of the railway vehicle acquired by the electronic tag reader, the pre-stored data and a preset temperature alarm threshold value of the bearing position number. According to the method and system, the temperature measurement time can be reduced, and the temperature can be accurately monitored.

Description

technical field [0001] The invention relates to the field of axle temperature measurement, in particular to an axle temperature monitoring method and system for railway vehicles. Background technique [0002] When the railway vehicle is running fast, due to bearing failure and abnormal high temperature of the bearing, it will cause the hot shaft of the vehicle or the hot shaft accident. At present, the infrared shaft temperature detection system is widely used in freight trains. However, due to the special environment of train operation, the existing infrared shaft temperature detection system is often affected by bad weather, which greatly affects the reliability of shaft temperature measurement, and the operation and maintenance costs are high. [0003] In recent years, with the rapid development of RFID technology, the shaft temperature monitoring method based on passive RFID technology has been gradually applied. The shaft temperature monitoring method of passive RFID ...

AI Technical Summary

Problems solved by technology

[0004] The existing temperature measurement method is to start the temperature measurement after receiving the measurement instruction after identifying the electronic tag through the multi-tag anti-collision process. This process takes a long time. When the railway vehicle is running at high speed, the tag is read The time in the electromagnetic field area of ​​the writer is extremely short, and more than one electronic tag enters the electromagnetic field at the same time. The above process may cause the problem that the electronic tag fails to transmit the measured data and its own data to the electronic tag reader after passing through the electromagnetic field.

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