基于ARM嵌入式图像处理平台的太阳跟踪系统

Sun-tracking system based on ARM embedded image processing platform

基于计算机视觉原理,以ARM微控制器为核心构建嵌入式图像处理平台,实现了对太阳的实时跟踪。系统采用CMOS图像传感器采集太阳图像,通过微控制器计算太阳角度,通过串口控制转台,实现对太阳的高精度跟踪。同时,与视日运动规律相结合,保证系统的可靠性。试验表明,该系统在降低系统能耗的同时,能可靠有效地跟踪太阳运动。

Based on computer vision principle,the real-time tracking of sun was realized by taking ARM microcontroller as the core to construct the embedded image processing platform.The system collects images of sun through CMOS imaging sensor,and computes the sun angles relative to the tracking platform by a microcontroller.With the computed sun angles information,the system controls the turntable through a serial port to make the solar panel perpendicular to the sun radiations.Meanwhile,another tracking mode based on sun trajectory is integrated in the tracking strategy to insure the system reliability.The teat result indicates that the system can reduce the system energy consumption and effectively track sun.