毕业设计(论文)题目:声光控制灯开关摘要在学校、机关、厂矿企业等单位的公共场所以及居民区的公共楼道,长明灯现象十分普遍,这造成了能源的极大浪费。在本设计中介绍了多种声光控路灯控制器的组成、性能,适用范围及工作原理,给出各电路原理图及元件参数选择,节电效果十分明显,同时也大大减少了维修量、节约了资金,使用效果良好。白天光照好,不管过路者发出多大声音,都不会使灯泡发亮。夜晚光暗,电路的拾音器只要检测到有碎发声响,就会自动亮为行人照明,过数十秒后又自动熄灭,节能节电。声光控制灯开关不仅适用于住宅区的楼道,而且也适用于工厂、办公楼、教学楼等公共场所,它具有体积小、外形美观、制作容易、工作可靠等优点。关键词:自动控制;信号放大;光电开关;声控电路;光控电路;·······························································································································································································································································································································································································································································································································································································································································································································································································································································································································································································································································································································、检常用方法····························································································································································15参考文献······························································· 声源表-,经声电转换器后转换成微弱的电信号,该信号经放大后送处理器处理,处理器将幅度、频率不尽
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