教室灯光自动控制系统设计学位论文.doc

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4、自动控制整体描述31.1灯光控制总体思想31.2灯光控制方案分析42硬件电路设计52.1控制核心模块52.2教室人数检测模块62.2.1热释电红外传感器的原理62.2.2教室人数检测模块的功能实现82.3教室光照强度检测模块92.3.1光敏三极管的选择及功能简述92.3.2光敏三极管检测光强原理及其模拟形式102.4灯控模拟模块112.5液晶显示和报警模块113系统程序设计133.1系统主程序流程图133.2系统子程序流程图143.2.1按键控制流程图143.2.2液晶显示控制流程图154系统仿真16结论17参考文献18致谢1918SelectionPa

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