文档介绍：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。
关键字:红外探测,时基电路, 灵敏度,集成电路
Infrared detection device circuit design eguests
Abstract
This installment mainly by willfully partitions the function digital voice integrated circuit[1], the high sensitivity human body sensing circuit and the sound production electric circuit and so on posed, can the auto-induction visitor's arrival, send out you to want to say any es the object. For example: es the visitor, this equipment may send out “hello! e the presence”, the visitor is in luck, it will say that “will e your next time presence” and so on pronunciation contents, therefore this installment definitely may replace ing guests young lady 24 hour work. One kind of pronunciation es 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 e guests the installment. Has the sensitivity adjustable, anti-ic wave disturbance ability, the volume is small, the structure is simple, can carry on the partition to record the playback, the pronunciation content may according to need to carry on the change, the easy to operate, the exterior audio frequency input signal may also through and so on this installment control external connection colored string lamp merits and so on load illumination twinkles.
Keywords:infrared acquisition, definite-time electric circuit, sensitivity, easy to operate.
目录
1 绪论 1
课题背景及意义 1
国内外研究状况 1
论文的构成及研究内容 2
2 总体设计电路方案 3
3 单元电路及工作原理 4
红外探测模块HN911及典型应用 4
时基电路555 5
555集成定时器简介 5
555定时器的应用 7