摘要
50Hz相敏轨道电路被广泛应用于城市轨道交通的轨道电路系统,其接收端所采用二元二位继电器存在诸多不安全因素,给轨道交通的正常运营埋下了较大隐患。介绍所设计的一种微电子式的相敏轨道电路接收器,选用TI公司的TMS320LF2407A作为控制CPU,采用双DSP架构的硬件冗余设计,并执行双套软件,利用数字信息处理技术对轨道电路信息进行识别,从软件和硬件上提高设备的安全性。
50Hz phase-sensitive track circuit is widely applied to urban rail transit systems. Its receiver adopts AC two element two position relay, but the relay has various unsafe factors which may bring hidden troubles to normal operation of railway systems. The paper introduces a micro-electronics phase detecting track circuit receiver with CPU of TMS320LF2407A （TI） and dual-DSP, driving two sets of software. So the safety of the receiver can be improved both in hardware and software by using digital signal processing technology to recognize the track circuit information.
出处
《铁路通信信号工程技术》
2011年第6期69-72,共4页
Railway Signalling & Communication Engineering
