基于LED的铁路信号灯的研究与开发

Research and Development of LED Railway Signal Lamp

本文介绍的一种白光LED光源,可以在任意类型铁路色灯信号机构中安装使用,兼容现有铁路信号灯的供电、监测、报警系统,LED光源通过不同颜色的玻璃后,光强和色坐标符合铁路标准要求。传统铁路色灯信号机是以双灯丝白炽灯为光源,它最大的缺点是所用双灯丝白炽灯寿命低;灯丝启动电流大,对供电装置的寿命影响大;系统维护工作量大。据了解我国铁路系统传统色灯信号机约有20万~30万套,白光LED铁路信号灯的研究有很大的经济和社会意义。

This paper Introduced a white-light LED light source,it can be installed in any color light type railway signal use,compatible with existing railway signal power supply,monitoring,alarm systems,different colors of the led light source through the glass,luminous intensity and chromaticity coordinates meet the standard requirements. Traditional rail color lamp signals in double-filament incandescent lamp as light source,its biggest shortcoming is the dual-filament incandescent lamp life and low; the filament current,effects on the supply of life system maintenance. According to China＇s traditional railway system color light signal about 20. 3 million units,study on white light LED railway signals have great economic and social significance.