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。

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 meth

该文研究了一套基于机器视觉的方法对太阳光斑自动定位系统的设计。它采用波门跟踪算法,可实时监测太阳光方位角和高度角,并调整步进电机使得整套装置的接收屏与太阳光线始终保持垂直夹角,在完成自动跟踪的同时大大提高了太阳能接收利用率。

This paper presents a method that it based on machine vision system for automatic positioning of the solar flare design. Using gate tracking algorithms, it can monitor the azimuth and elevation angle of sunlight timely, then adjust the stepping motor allowing that the receiver screen of the entire device remain vertical angle with the sun''s rays, while it can tracke solar automatic-ly and improve the utilization of solar receiver greatly.

目前在太阳能热发电领域，仅有槽式太阳能实现了商业发电，但是槽式太阳能需要实时进行太阳跟踪。为了提高槽式太阳能跟踪精度，该文研制了一种基于可编程逻辑控制器PLC的太阳自动跟踪系统，并采用视日运动轨迹算法主动式跟踪策略，计算出槽式太阳聚光器跟踪太阳的旋转角度，并用该角度产生控制指令驱动液压油缸，实现对南北布置东西跟踪的槽式太阳能聚光器的精确太阳跟踪，选取了4个典型日期分析该跟踪系统在4个典型日期时太阳位置的高度角、方位角、跟踪太阳的旋转角度以及聚光器的旋转角度等数据，研究聚光器的运行特性。应用结果显示，该跟踪控制系统计算的太阳位置算法与国际上比较先进的高精度太阳位置 SPA 计算算法之间的误差在0.12°以内，角度传感器的变送误差在0.044°以内，间歇跟踪驱动最大误差在0.4°以内，经过现场测试整个跟踪系统的误差在0.5°以内。同时，对聚光器的运行轨迹数据分析显示抛物槽式聚光器的全年最大运行速率出现在冬至日的正午时刻，达到0.398°/min。该研究可以为抛物槽式太阳能聚光器的传动机构设计提供理论依据。

Concentrating Solar Power (CSP) systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. Heat transfer fluid is heated by sun rays through the solar concentrator, then used as a heat source for a conventional power plant. A wide range of concentrating technologies has existed; the most developed are parabolic trough collector (PTC), linear fresnel reflector system (LF), power tower, and dish/engine system (DE). Parabolic trough collector is considered as one of the most mature applications of solar energy in these four technologies, which makes it worth developing. Sun-tracking system plays an important role in the development of solar energy applications, especially for the high solar concentration systems that directly convert the solar energy into thermal or electrical energy. High accuracy of sun-tracking is required to ensure that the solar collector is capable of harnessing the maximum solar energy throughout the day. Compa

近红外多视场恒星探测系统采用3个探测器同时进行恒星探测，分析了近红外波段白天恒星-背景对比度随探测参数的变化情况，对不同视场对比度进行对比，结果表明：随着探测天顶角的增大，恒星-背景对比度呈线性增大；太阳天顶角大于探测器天顶角以后，恒星-背景对比度随太阳天顶角近似于指数增长；一定高度时，对比度随探测器高度的增加近似指数增加；而随着探测方位角的增大，恒星-背景对比度呈高斯分布；三个视场内同一时刻的背景辐射比在主视场0o探测方位角时达到最小，探测到的恒星-背景对比度随主视场探测方位角变化呈对称分布，为星等修正奠定较好的基础。

Near-infrared star detection system used three detectors to detect stars at the same time, analysed the relation between contrast and the detection parameters of near-infrared band during daytime, what''s more, compared the contrast of different detectors, the result showed that: with the observer zenith angle increased, the star-background contrast increased linearly; when the solar zenith angle was greater than the observer zenith angle, the contrast similar to the exponential growth; out of a certain height, the contrast exponentially increased with the height increased; with the increased of the detection azimuth, contrast approximation Gaussian distribution; at the same time, background radiation contrast of different fields got minimum when the main field is 0o; star-background contrast nearly symmetrical distribution with the alter of main field''s detection azimuth, provide a better basis for the magnitude amendment.

在现有船舶太阳能光伏发电技术的基础上,基于碟式太阳能热发电技术,设计一种船用碟式斯特林太阳能热发电装置,并利用STM32 F3作为控制器,基于高度角-方位角双轴混合跟踪技术设计该船用碟式斯特林太阳能热发电装置的太阳跟踪控制系统。

Based on existing ships solar photovoltaic power generation technology and the dish solar thermal power technolo -gy, a marine dish Stirling solar power generation device was designed , which uses STM32 F3 as the controller .A solar tracking control system for the dish Stirling solar thermal power generation device was developed based on the elevation angle -position mix-ing angle axis tracking technology .