大学毕业论文—毕业论文—无线遥控音乐门铃的设计与制作.doc

无线遥控音乐门铃的设计与制作 摘 要 随着微电子技术、无线技术和网络技术的飞速发展以及人们生活水平的大幅度提高，人们对居住环境的安全、方便提出了越来越高的要求，尤其是在智能化住宅中，人们迫切需要一种不仅安全可靠、使用方便等优点于一体的智能门铃产品，因此无线遥控音乐门铃系统的设计成为本课题研究的目标。 本文介绍了一种新型遥控门铃,它采用具有编码功能的遥控发射-接收专用集成电路.结合高音质机电式门铃做声源,成为一种声音动听、门铃按钮与声源之间免去连线、安装方便的新型遥控高音质门铃.这种门铃具有功耗低,电路简单可靠,抗干扰能力强,遥控距离远,电路体积小等优点,其接收电路连同机电式门铃为一体,可以随意放置在室内有220V交流电源的地方,具有广阔的发展前景.针对目前世界范围内经济严峻形式和我国经济运行面临新的不确定性因素，如何根据急剧变化的外部经济环境调整企业发展规划和经营方针，成为摆在我国无线音乐门铃企业面前亟待解决的问题。全球金融危机该无线音乐门铃用TC4069集成块来作发射和接收主电路，该电路用先进的脉码调制发射及石英晶振稳频技术，接收由解调、放大、整形、声响电路组成，性能稳定，遥控距离远，功耗低等特点。Abstract With the rapid development of micro-electron technology, wireless technical and network technology as well as the large scale enhancement of people living standard , the people set out the more and more high request about environment security, particularly in intellectualized house-building, the people urgently need one kind of intelligent doorbell, which is not only safe reliable, but also the picture is clear .therefore the design of system of wireless visible speaking doorbell becomes the research goal of this paper . This paper introduces a kind of new doorbell system based on the Single-Chip computer AT89C2051, which is wireless visible speaking system .In this system, the system’s total structure and the principle of work was elaborated, and have introduced the essential technology of the design and the realization in detail, and consisted of full duplex pronunciation correspondence and picture information processing. The wireless transmission and intelligent module was designed and realized .etc. The system of Wireless visible speaking doorbell combines with microcomputer technology, the wireless communication and the digital signal processing technology, using in the high frequency band translation receive. Through the system digitization, the picture signal quality was the enhanced and the interference immunity was greatly strengthened. Simultaneously the overall system volume comparing with other transmission modes will reduce a lot , extraordin