多媒体教室无线话筒和接收机的任意配对技术  

Technique of Random Matching of Wireless Microphone and Receiver in Multi-media Classroom

作　　者：张会铭[1] 陆云龙[1] 罗杰[2] 雷志华[1] 

机构地区：[1]华中科技大学现代教育技术中心 [2]华中科技大学电子与信息工程系,武汉430074

出　　处：《科学技术与工程》2009年第17期5136-5139,共4页Science Technology and Engineering

基　　金：华中科技大学学校研究基金项目资助

摘　　要：在多媒体教室密集的教学楼里,如何实现无线话筒和接收机的任意配对,是值得进一步研究的课题。文中简要地概述了红外线载波调制解调音频技术、红外线传送载波频率资料技术、自动设置无干扰载波频率技术和随机射频协议自适应跳频技术等任意配对实现方式,并指出了各自优缺点以及不同的应用场合。最后为多媒体教室无线话筒和接收机的选购提供了指导性建议。It is desirable to study further on random matching of wireless microphone and receiver in a teaching building with many multi-media classrooms. The methods of random matching are summarized briefly such as technique of infrared carrier demodulation audio, infrared transmitted carrier frequency information, auto setup non-interference carrier frequency and random RF protocol self-adaptive frequency hopping and so on. Furthermore the advantages and disadvantages of these techniques are discussed in different situations. Finally, the suggestions to choose wireless microphones and receivers in multi-media classroom are proposed.

关 键 词：任意配对 无线话筒 接收机 载波频率 

分 类 号：TN836[电子电信—信息与通信工程] TN914