| 基于FM的无线扩声系统 |
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| 引用本文： | 巩学芳,宋晓梅,霍小波,李楠.基于FM的无线扩声系统[J].西安工程科技学院学报,2014(5):604-607. |
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| 作者姓名： | 巩学芳 宋晓梅 霍小波 李楠 |
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| 作者单位： | 西安工程大学电子信息学院,陕西西安,710048 |
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| 基金项目： | 陕西省教育厅自然科学基金项目(12JK0547)；西安市科技局技术转移促进工程项目(CXY1349(2))；西安工程大学博士科研启动基金项目(BS1205)；西安工程大学研究生创新基金项目(CHX131122)；西安工程大学研究生创新基金项目 |
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| 摘 要： | 针对课堂教学、室内会议等对扩声系统的需求,提出了一种基于FM的无线扩声系统.该系统包括FM收发模块和图形用户界面（GUI）软件.FM收发模块采用C8051F340单片机控制RDA5820实现对语音信号的无线收发,同时通过USB从PC机获取工作频率并发送语音数据;用LabVIEW实现的GUI软件可通过USB修改FM收发频率,并将获取的语音数据进行扩声播放.该系统收发模块采用一体设计,实现语音的FM无线收发,可自动切换收发工作模式,实验表明该系统方案合理可行.
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| 关 键 词： | 无线扩声系统 FM C8051F340 RDA5820 自动切换 |
Wireless sound reinforcement system based on LabVIEW |
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| GONG Xue-fang,SONG Xiao-mei,HUO Xiao-bo,LI Nan.Wireless sound reinforcement system based on LabVIEW[J].Journal of Xi an University of Engineering Science and Technology,2014(5):604-607. |
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| Authors: | GONG Xue-fang SONG Xiao-mei HUO Xiao-bo LI Nan |
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| Institution: | (School of Electronics and Information, Xi＇an Polytechnic University, Xi＇an 710048, China) |
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| Abstract: | In response to the demand of sound reinforcement system used in the classroom,conference room and other places,wireless sound reinforcement system based on LabVIEW is proposed.The system includes FM transceiver modules and graphical user interface（GUI）software.The FM transceiver module implements voice signal wireless transceiver by using C8051F340 MCU to control RDA5820,which gets the operating frequency via USB from a PC and sends voice data;the GUI which is realized by LabVIEW software can modify FM transceiver frequency by USB,and the acquired voice data can be amplified and played.The system is integrated designed of transceiver module to and implement FM voice signal wireless transceiver,which can automatically switch the transceiver mode.The experiments show that the system is reasonable and feasible. |
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| Keywords: | wireless sound reinforcement system FM C8051F340 RDA5820 automatic switch |
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