基于CAN总线的光纤陀螺自动测试系统

星载光纤陀螺的测试项目多,耗时长,同时需要实时监控陀螺状态.针对上述问题,提出了一种采用控制器局域网(CAN)总线与现场可编程门阵列(FPGA)相结合的方案.基于Verilog语言设计下位机采集程序,VC6.0的微软基础类(MFC)框架编写上位机采集程序,设计自动测试系统实现自动测试功能,可以实时采集并自动存储陀螺的输出数据,同时实时监控光纤陀螺的工作电压、电流和环境温度,在出现过压、欠压、过流和温度异常情况下开启故障保护功能并报警,达到了预期的技术指标,可靠地保障光纤陀螺测试的顺利进行.

FOG automatic test system based on CAN-bus

Lots of test projects of consume a large amount of time and need real-time monitoring. Aiming at the above problems,the spaceborne FOG automatic test system adopts program of controller area network(CAN)and FPGA is proposed,which bases on Verilog designing collecting lower computer (PC ) program and based on Microsoft foundation classes(MFC)of VC6. 0 designing upper PC program. The system can real-time acquire and automaticly store FOG data. Meanwhile,monitor working voltage,current and environmental temperature of FOG. In case of overvoltage,undervoltage,over current and abnormal temperature,the system opens fault protection function and alarm. The system achieves expected technical index,and successfully guarantees the test go well.