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目 录
1 绪论1
2 方案论证2
3 系统框图4
4 电路的工作原理4
5 模块介绍6
5.1 电源模块6
5.2 检测模块7
5.2.1 红外信号发射模块7
5.2.2 红外信号接收模块8
5.3 互锁控制模块9
5.3.1 电压比较器LM3249
5.3.2 双四位加法计数器CD451810
5.4 语音控制模块11
5.4.1 主要特性11
5.4.2 封装形式12
5.4.3 引脚描述12
5.4.4 录放音的操作方式13
5.4.5应用线路图14
5.4.6 TDA2822功放集成电路14
6 模特动作控制模块16
7 整体电路图16
8 印刷电路板18
9 结束语19
谢辞20
参考文献21

摘 要
本电路可安装在商场、宾馆、舞厅等营业场所的门口，利用红外线检测技术自动识别顾客的进、出方向。客人进门时它会说欢迎光临，同时模特会做出弯腰和伸手的示意动作。客人出门时它又会说谢谢光临，同时做出和上述相同的动作。语音电路发出的语音能给人以愉悦、亲切的感觉。该装置不受情绪和天气冷热的影响，对顾客热情如一。增强顾客对该部门的好感，提高该部门的声誉。它将成为一个无人值守的自动迎宾礼仪小姐。用该装置来代替迎宾小姐，不仅经济，而且十分有趣。自动电子迎宾电路工作原理如附图所示。它由红外振荡器IC1、红外接收器D5及D6、互锁单稳态触发器U12A及U12B和语音存储器IC6和IC7等构成。IC1是一片单时基集成电路NE555，接成无稳态多谐振荡器模式，其振荡频率由R11、R9、C1确定，一般可按f=1.443/[(R9+R10+R11)C1]。
关键词：电子迎宾，语音模块，红外线发射，红外线接收

Abstract
This circuit can be installentrance in the market, hotel, dance hall and so on. It use infrared examine technology to distinguish the direction of guest coming and coming out automatic. When gust comes in, it says welcome presence, meanwhile, the module can make action of bent waist and put out hand. When gust comes out, it will say thank presence, meanwhile , above making same action. The pronunciation circuit sending out voice can give person joyful and cordial impression. Moreover, mood and weather temperature can’t affect the equipment. It give same cordial to gust. Strengthen the favorable impression of customer to department. And improves the department reputation . It will become a automatic welcoming guest lady with no person on duty. Using this equipment to replace welcome guest lady, it is not only economic but also interesting. The work principle of automatic electron welcoming guest circuit is shown in attached diagram. It consists of infrared oscillator IC1, infrared receiver D5 and D6, mutually locks single stable state trigger U12A and U12B. and pronunciation storage IC6, IC7 IC1 is a single time integrate circuit NE555 .Connect as non-stable state multivibrator pattern, its oscilation frequency determined by R11, R9, C1 generally according to f=1.443/[(R9+R10+R11)C1].

Key words: welcoming gusts of electron,The pronunciation module,Emission of infrared radiation,The infrared receive

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