无线话筒频道搜索/监听与频道锁定方法  

Research on Methods of Channels Searching/Listening and Locking using Wireless Microphone

作　　者：叶仁春[1] 陆云龙[1] 张会铭[1] 张莉 

机构地区：[1]华中科技大学现代教育技术中心,湖北武汉430074 [2]武汉第二轻工业学校计算机中心,湖北武汉430074

出　　处：《实验室研究与探索》2010年第12期38-40,44,共4页Research and Exploration In Laboratory

摘　　要：利用AVR控制器实现频道搜索/监听与频道锁定,改善现有基于随机射频协议技术无线话筒的使用状况,采用非标准无线通信协议思想简化无线通信协议栈,实现公共射频协议到私密射频协议转换,设计的轻量计算的控制数据帧减少处理数据量和同步处理要求,以提高音质和减少功耗。使用CodeV isionAVR开发平台编制以频道搜索/监听与频道锁定为核心软件模块的收发一体化工作流程,实现无线话筒的发射机与接收机通信频道自动连接,同时避开同频设备的干扰。实际应用表明,通过此方法改进的无线话筒,适用于在教室密集环境的教学楼里使用。Using an AVR controller for Channels Searching/Listening and Locking improved the application of wireless microphone which is currently based on random RF protocol.Established the concises wireless communication protocol stack to achieve public RF to private RF conversion.Design the data frame of lightweight computing to reduce the amount of data processing and synchronization requirements to improve sound quality and reduce power consumption.As aresuclt of using integrated receiver-transmitter workflow that takes the channel searching/listening and locking as a core soft module with CodeVisionAVR,the transmitter and receiver of wireless microphone is automatically connected without the interference from devices with the same frequency.It shows from the application of the improved wireless microphoue that it is suitable to be used in teaching buildings with many classroom.

关 键 词：无线话筒 频道搜索/监听 频道锁定 随机射频协议 自动连接 

分 类 号：TN836[电子电信—信息与通信工程] TN914