1、 红外探测迎宾装置电路设计 摘 要 本装置主要由高灵敏度人体传感电路、任意分段功能的数码话音集成电路1和发声电 路等组成，能自动感应客人的到来，发出迎宾语。例如：来客人时，本装置可以发出“您 好!欢迎光临”，客人走时，它就会说“欢迎您下次光临”等语音内容，所以本装置完全 可以代替迎宾小姐 24 小时的工作。在此语音迎宾装置机箱内置有由红外探测头、定时控 制电路，迎客语音电路、降压整流电路设计出简单的红外探测迎宾装置。具有灵敏度可调， 抗电磁波干扰能力强，体积小，结构简单等特点，能够进行分段录放音，语音内容可以根 据需要进行改变，外部音频输入信号可通过本装置控制外接彩色串灯等负载发光闪烁等优 点
2、。 关键字：红外探测，时基电路， 灵敏度，集成电路 Infrared detection device circuit design welcomeguests Abstract This installment mainly by willfully partitions the function digital voice integrated circuit1, the high sensitivity human body sensing circuit and the sound production electric circuit and so on is composed, c
3、an the auto-induction visitors arrival, send out you to want to say any welcomes the object. For example: When comes the visitor, this equipment may send out “hello! Welcome the presence”, the visitor is in luck, it will say that “will welcome your next time presence” and so on pronunciation content
4、s, therefore this installment definitely may replace welcoming guests young lady 24 hour work. One kind of pronunciation welcomes guests the installment, it includes the engine case, built-in has the infrared detecting head in the engine case, the timed control electric circuit, receives a guest the pronunciation electric circuit, the voltage dropping leveling circuit to design the simple infrared detection to welcome guests the installment. Has the sensitivity adjustable, anti-electromag
