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为进一步优化居室健康照明方案,提高调光质量、节能环保,对居室照明调光技术及照明方案进行研究,提出并设计了一种基于AVR数字PID的LED恒光照明系统。详细介绍了系统的硬件和软件设计。系统具有成本低、效率高、抗干扰等优点。试验结果表明,系统可以通过判别有无用户来实现关启照明;同时,PID系统能根据人的作息习惯和自然光强弱调整LED亮度,从而实现安全、舒适、健康的室内照明。
In order to further optimize the room health lighting program, improve the quality of dimming, energy saving and environmental protection, research on the dimming technology and lighting scheme of the room lighting, propose and design a LED constant light lighting system based on AVR digital PID. Described in detail the system hardware and software design. The system has the advantages of low cost, high efficiency, anti-interference and so on. The test results show that the system can determine the presence or absence of users to turn off the lighting; at the same time, PID system can adjust LED brightness according to people’s habits and natural light intensity to achieve safe, comfortable and healthy indoor lighting.