本控制系统以16 位微控制器XC164CS 为核心控制器。采用伺服系统的位置控制模式来驱动运动部件，利用高速光耦TLP521-4 对按钮开关、频闪光源和光纤传感器进行光电隔离；采用光纤传感器和伺服编码器反馈信号优势互补的控制策略。并从控制系统的分析与设计，曝光管时间与光源频率关系的分析和载物台的运动和CCD取像频率的关系的分析等方面做了深入的研究与论证。本控制系统已经成功应用于PCB 光电外观检查机系统。实验表明该系统具有控制和定位精度高，误差小，稳定性高和方便灵活的参数修改等显著性能。

16-bit microcontroller is used to control system as the core controller. Moving parts are driven by position-servo-system. Buttons switch, adjustable stroboscopic light source and fiber optic sensors are isolated by high-speed opto-couple TLP521-4. Optical fiber sensors and servo encoder feedback signals, complementing each other, were combined in the controller design. Through the analysis and design of the control system, the analysis of the relationship between the exposure time and light frequency and the analysis of relationship between the CCD image acquisition frequency, in-depth research and demonstration are done. The control system has been successfully applied to the appearance of PCB optical inspection machine. Experiments show that the system has many significant properties, such as high precision, small error，high stability and flexibility of parameter changing.