星型光通信模块的组网方案研究与设计

Research and design of star type optical communication module's group net scheme

本文结合"铁路车站全电子化应急联锁系统"的研发,将该系统联锁通信单元与执行通信单元之间的通信方式由电缆改为光纤,提出并行星型耦合器组网方案,设计出能插入在室内执行机柜内的星型光通信模块实现联锁通信单元与执行通信单元之间的光通信;通过光电转换电路,隔断联锁通信机与执行机智能电子模块之间通信电路的电联系,给出了通信模块的硬件与软件实现。通过电磁兼容测试实验证明,该组网方案具有可靠性高、成本低、易升级等优点。

Based on the research of ＂Railway Station Whole Electronical Emergency Interlock System＂, the communication media between interlock communication unit and transact communication unit is changed from cable to optical. In this paper, an applied parallel star coupler scheme is presented. The star type optical communication modules are designed that can be dropped in transact machine cabinet indoors; the optical communication between interlock communication unit and transact communication unit is realized; the electron interosculate between interlock communication machine and the aptitude electronic module of transact is cut off by optical-electricity conversion circuit; and the realization of hardware and software of the communication module is also given. In the end, the electromagnetic compatible test experiment validates that the scheme has the merits of high feasibility, low cost and easy to upgrade.