现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
10期
158-162
,共5页
PIC18F6520%数据拟合%太阳高度角与方位角%四象限硅光电池
PIC18F6520%數據擬閤%太暘高度角與方位角%四象限硅光電池
PIC18F6520%수거의합%태양고도각여방위각%사상한규광전지
PIC18F6520%data fitting%solar elevation angle and azimuth angle%four-quadrant silicon photovoltaic cell
由于单片机对追光系统中太阳高度角和方位角的计算公式计算能力不足等缺点，往往会导致追光系统不够精确和稳定。该设计在处理太阳高度角和方位角时摒弃了单片机直接套用太阳高度角和方位角计算公式的做法，而是利用计算机将某一地点确定月份的太阳高度角与方位角进行计算和统计，得到了其近似拟合函数，单片机可根据此拟合函数进行太阳高度角与方位角的近似计算并进行太阳跟踪，在完成近似跟踪后启动由四象限硅光电池和凸透镜组成的光电跟踪系统，完成对系统的精确调整。该方法的应用解决了单片机对天文算法计算能力不足的缺点，同时实现了对太阳高效、实时、精确的追踪，对实际工程实践有一定的指导意义。
由于單片機對追光繫統中太暘高度角和方位角的計算公式計算能力不足等缺點，往往會導緻追光繫統不夠精確和穩定。該設計在處理太暘高度角和方位角時摒棄瞭單片機直接套用太暘高度角和方位角計算公式的做法，而是利用計算機將某一地點確定月份的太暘高度角與方位角進行計算和統計，得到瞭其近似擬閤函數，單片機可根據此擬閤函數進行太暘高度角與方位角的近似計算併進行太暘跟蹤，在完成近似跟蹤後啟動由四象限硅光電池和凸透鏡組成的光電跟蹤繫統，完成對繫統的精確調整。該方法的應用解決瞭單片機對天文算法計算能力不足的缺點，同時實現瞭對太暘高效、實時、精確的追蹤，對實際工程實踐有一定的指導意義。
유우단편궤대추광계통중태양고도각화방위각적계산공식계산능력불족등결점，왕왕회도치추광계통불구정학화은정。해설계재처리태양고도각화방위각시병기료단편궤직접투용태양고도각화방위각계산공식적주법，이시이용계산궤장모일지점학정월빈적태양고도각여방위각진행계산화통계，득도료기근사의합함수，단편궤가근거차의합함수진행태양고도각여방위각적근사계산병진행태양근종，재완성근사근종후계동유사상한규광전지화철투경조성적광전근종계통，완성대계통적정학조정。해방법적응용해결료단편궤대천문산법계산능력불족적결점，동시실현료대태양고효、실시、정학적추종，대실제공정실천유일정적지도의의。
Since the calculating ability of single-chip microcomputer (SCM) for dealing with the calculational formula in the sun-tracking system for computing sun altitude angle and azimuth angle is insufficient,which often leads to inaccuracy and instability of the spotlight system,the calculation and statistics of the solar altitude angle and azimuth angle in a certain month are made by a computer to obtain their approximate fitting functions when the sun altitude angle and azimuth angle need to be calculated,instead of straightly using the sun altitude angle and azimuth angle calculation formula to calculate the sun altitude angle and azimuth. According to the fitting functions,SCM can be used to approximately calculate the sun altitude angle and azi-muth angle,and realize the sun tracking. After fulfilling the approximate tracking,the photoelectric tracking system composed of four quadrant silicon photocell and convex lens is started to complete the precise adjustment of the system. The method over-came the disadvantage of SCM for astronomical algorithm calculation,and at the same time realized the efficient,real-time and accurate tracking to the sun. It has certain guiding significance for the actual engineering application.
