基于PSD的太阳方位对准系统研究

计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (15): 215-219.

基于PSD的太阳方位对准系统研究

马帅旗

陕西理工学院电气工程学院，陕西汉中 723003

出版日期:2014-08-01 发布日期:2014-08-04

Research on solar azimuth alignment system based on PSD

MA Shuaiqi

School of Electrical Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723003, China

Online:2014-08-01 Published:2014-08-04

摘要/Abstract

摘要： 针对现有太阳方位跟踪系统中对准精度较低、易受环境制约等问题，设计了一种太阳方位对准系统。该系统一方面接收GPS输出数据信息，利用视日运动轨迹跟踪方法计算初始方位；另一方面利用斜入射平凸透镜的太阳光线在二维四边形PSD器件上形成光斑，计算光斑中心与PSD器件几何中心之间偏差，结合二者信息对太阳方位进行准确定位，对安装倾斜误差进行补偿。实验结果表明，该太阳方位对准系统能够实现全天候、大范围内准确定位，设计方法合理、可行。

关键词: 方位对准, 四边形位置敏感探测器（PSD）, 视日运动轨迹法, 光斑跟踪

Abstract: As to the issue of low accuracy and vulnerability in current solar azimuth measurement system, a solar azimuth alignment system is proposed. According to the GPS data frame, the initial azimuth is calculated by using sun trajectory algorithm, and the sun spot is formed on two-dimensional tetra-lateral PSD by solar ray oblique incidence. The deviations between sun spot center and geometrical center of PSD are calculated, and accurate solar azimuth is estimated by fusion algorithm, and installation tilt error is compensated. The experimental results show that the solar azimuth alignment system can locate solar azimuth for all-weather tracking, and the design method is reasonable and practicable.

Key words: azimuth alignment, tetra-lateral Position Sensitive Detector（PSD）, sun trajectory, sun spot tracking

马帅旗. 基于PSD的太阳方位对准系统研究[J]. 计算机工程与应用, 2014, 50(15): 215-219.

MA Shuaiqi. Research on solar azimuth alignment system based on PSD[J]. Computer Engineering and Applications, 2014, 50(15): 215-219.