基于FPGA的跟踪伺服器在光电经纬仪中的应用

Application of Servo-control System Based on FPGA in the Electro Theodolites

针对现有光电设备的伺服控制系统存在的集成度差、价格昂贵、故障率高等问题,设计一种基于FPGA(EP1C12Q240C8)和DSP(TMS320F2812)芯片作为核心处理元件的伺服控制器,该控制器采用数字化控制算法,模块化设计思想,在FPGA内部完成复杂的时序和逻辑设计,实现了对选用直流力矩电机作为执行元件的光电经纬仪的伺服控制;经实际运行证明,该设计方案完全能实现光电经纬仪所要求的跟踪性能,满足高精度要求;在某型号经纬仪改造中应用效果良好,值得在相关研究所中推广。

Based on TMS320F2812,the electro-optical theodolite servo controlling system is designed,in which the DC torque motor is used.The digital control law is also proposed.In actual application,the result shows that it can satisfy high tracking performance and high precision.