一种交换式光纤总线系统监控方法研究

A Monitor Design Method of the Switching Fiber Optic Bus System on Board

针对交换式光纤应用于箭上时总线数据实时监控的需求,提出了一种总线数据监控方法;该方法通过对交换机的交换策略、地址管理、传输路径规划等进行改进,使监控终端具备监控多交换节点网络中所有数据的能力;并基于Altera公司FPGA建立了具备总线监控功能的实际总线网络,仿真高速数据传输实验表明使用该方法的系统能够在不妨碍箭上数据传输的条件下监控高速总线信息,设计具备较强的工程应用价值。

Faced with the real-time bus data monitoring requirement generated when the high-speed switching fiber optic bus system is used in rocket-borne background,a monitoring method was proposed. This method change the switch’s switching mode,address management and the transmitting trace to realize the ability to monitor fiber optic switching network which is composed of more than one switch with one termination. Then a real system was established based on the FPGA provided by Altera corporation. Simulation of high-speed transmitting experiment shows that the system with this method possess the advantages of no affection on rocket-borne data transmitting while monitoring the bus data correct. The method is of better engineering value.