Reliability Study Of The Train Operation Monitoring Apparatus Screen Displayer

These years, Traffic monitoring device have all locomotive renewal for LKJ2000type. Because the screen displayer have some design defects, it may cause high failure rate and big interference for rail transport. So the needs of screen displayer work reliality and make sure the safty stability reliality of LKJ2000are very eagerly. This dissertation has completely did some tabulation and surveys about the faults of Kunming Railway type LKJ2000these years and it also systemley analyses factors of screem displayer’s working status and service time. According to this researching it put forward by use of the low power voltage change device to reduce their power consumption, In order to improve the power supply board anti-interference ability; design a heat dissipation system which fit for work trait of the screen displayer to remedy the defects of original design; Seek product substitutions which has low power consumption, stable operation, long service life, to strengthen CPU’s and other key parts’s stability which long run under severe condition. And so on a series of measures to improve the reliability of the display screen.Improve the reliability of the display screen measures. Specifically As Follows:1. According to the display power supply, From the conversion efficiency low voltage output ripple much isolation transformer in improved cooling design.2. Put forward the temperature control fan and increase the temperature control circuit of related cooling device design scheme on the conditions that means not changing the screen displays the existing structure.3. Suitable for monitoring device screen display of the low power consumption alternative CPU motherboard, The improved designs for manufacturers put forward valuable opinions and Suggestions.Based on the research of the problem, Make monitoring device screen display working conditions、anti-interference ability、electronic components stability、using life and so on have improved considerably, Improve the reliability of the use of the display by strengthening the power、CPU card、heat elimination. Make sure the monitoring apparatus more stable and reliable as an "patron saint" up good patron saint role in the curse of transportation and production.