Abstract:According to the characteristics of robot duty，this study designed a monocular vision system. With Complex Programmable Logic Device(CPLD) to form the control timing sequence，a Complementary Metal Oxide Semiconductor(CMOS) image sensor was adopted to build up a hardware platform with a resolution of 0.3 M pixel. Based on the simplified Hue Saturation Intensity(HSI) color model, the object status could be judged with a sampling method. The high-performance Digital Signal Processing(DSP) processor used could provide image processing and motion control functions simultaneously. The algorithm was verified with Matlab and then ported to DSP. Experimental result has shown that the system can implement the status judgment successfully.