Design Of The Alarm Equipment For Preventing Locomotive Tyre Relaxation

Tyre relaxation usually occurs in the course of locomotive running. It threatens running safety seriously. Many locomotive units make great and active efforts in the field of preventing it, but they often pay more research on one aspect that produces tyre relaxation. Hence they cannot find the phenomenon immediately. The dissertation regards tyre temperature as research object and put infrared radiation technology into temperature measurement. The new equipments can find tyre relaxation and alarm immediately by measuring tyre temperature. It gives help to ensure locomotive run safely.Infrared radiation technology has been used in measurement of railway systems, but it do not use as measurement ways of running locomotive. The main reason is that its application is restricted by many conditions such as working environments and radiativity. How to make amendment, to enhance measurement accuracy and reliability is the key technology in its application.The dissertation studies the principle of infrared radiation, factors of influencing measuring temperature and gives the measures to solve problem. It designs setting and protecting equipments for the system. The new equipments use single-chip microcomputer to control and analyze tyre relaxation. In the meantime it combines phonetic alarm and IC card technology perfectly. We can use IC card to saving datum and analyze accident reason. In addition we measure the critical temperature and confirm alarming temperature.It has used in locomotive, its effect demonstrates it can alarm immediately. It possesses use simplicity, system stability and strong extension character.