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提出了一种低成本、高精度的阳光自动跟踪系统。采用由光敏电阻组成的感光器进行定位,STC12C5A60S2单片机进行双轴控制,用小范围跟踪、大范围寻找的方式实现二维自动跟踪。系统跟踪时间长,在一年四季的早晚日出、正午、雨天时段均能稳定工作,跟踪精度达到0.1°,解决了太阳光时变性问题,提高了太阳能利用率。目前已成功应用于某隧道太阳光增强照明系统中。
A low cost, high precision sunlight automatic tracking system is proposed. Using photoreceptors composed of photosensitive resistors for positioning, STC12C5A60S2 microcontroller dual-axis control, with a small range of tracking, a wide range of ways to achieve two-dimensional automatic tracking. System tracking a long time, sunrise and noon in the morning and evening all year round, noon, rainy hours can work steadily, tracking accuracy of 0.1 °, to solve the problem of solar light time-dependent and improve the utilization of solar energy. Has been successfully applied to a tunnel solar lighting system.