| 基于nRF2421的多媒体教室无线话筒设计 |
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| 引用本文： | 陆云龙,张会铭,雷志华.基于nRF2421的多媒体教室无线话筒设计[J].实验室研究与探索,2007,26(10):29-33. |
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| 作者姓名： | 陆云龙 张会铭 雷志华 |
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| 作者单位： | 华中科技大学现代教育技术中心,湖北武汉430074 |
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| 基金项目： | 华中科技大学2006年实验室技术研究项目 |
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| 摘 要： | 简述了多媒体教室无线话筒的基本要求和无线数字音频芯片nRF2421的基本特性。以此芯片为主体实现了符合多媒体教室要求的无线话筒发射端和接收端的硬件设计，分析了数字音频流的传输特性及射频发送接收控制流程。最后就此芯片低功耗低成本的原因说明用在多媒体教室无线话筒设计中的优越性。
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| 关 键 词： | nRF2421 无线话筒 多媒体教室 功耗 |
| 文章编号： | 1006-7167（2007）10-0029-05 |
| 收稿时间： | 2007-01-12 |
| 修稿时间： | 2007年1月12日 |
A Design of Wireless Microphone in Multimedia Classroom Based on nRF24Z1 |
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| LU Yun-long, ZHANG Hui-ming, LEI Zhi-hua.A Design of Wireless Microphone in Multimedia Classroom Based on nRF24Z1[J].Laboratory Research and Exploration,2007,26(10):29-33. |
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| Authors: | LU Yun-long ZHANG Hui-ming LEI Zhi-hua |
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| Institution: | Modern Educational Technology Center,Huazhong Univ. of Science and Technology, Wuhan 430074, China |
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| Abstract: | This paper introduced the basic requirements for wireless microphone used in multimedia classroom and the basic characteristics of wireless digital audio chip nRF24Z1. The chip is used as main part to realize the hardware design of the wireless microphone transceiver that fitted in multimedia classroom, and the transmission characteristics of digital audio flow and the control process of RF transceiver were also analyzed. Finally, the low consumption and low cost of this chip were narrated to veritfy the superiority of this wireless microphone used in multimedia classroom. |
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| Keywords: | nRF24Z1 wireless microphone multimedia classroom consumption |
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