文档介绍：基于nRF24Z1的数字无线话筒设计
摘要
无线数字音频传输技术是指利用无线电波作为数据传输的媒介,一切以数字化音频为处理对象的操作技术。它是利用将语音信息调制到载波频率上发射,实现发送端与接收端的通信。其涉及到模拟电子技术、信息技术、以及网络技术等多个学科领域。也通过无线音频传输系统,简单控制远端设备的运行情况以及实现两端之间的语音传输。随着无线音频技术越来越成熟,越来越多的公共场合如大型会议室、教室等程系统采用了此技术。与有线音频传输相比,无线音频传输具有成本低、安装简便、便于移动等优点。
本次所设计的数字无线话筒以低成本、设计结构简单为目标,对目前的射频芯片、音频芯片和微控制器进行筛选比较,以低功耗为首选,给出基于nRF24Z1数字无线话筒的硬件结构及软件实现方法。
关键词:nRF24Z1 ,短距离通信,无线传输,数字音频
design of the digital wireless microphones Based on nRF24Z1
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Abstract
Wireless digital audio transmission technology is the use of radio as a medium for data transmission, all in digital audio technology to deal with object manipulation. It is the use of the voice message to the carrier frequency modulated transmitter, the transmitter and receiver to munication. It relates to the analog electronics, information technology, work technology and other disciplines. Also through wireless audio transmission system, a simple remote control operation of devices and the realization of voice transmission between the two ends. As wireless audio technology es more mature, more and more public places such as large meeting rooms, classrooms and other process system using this technique. Compared with wired audio transmission, wireless audio transmission with low cost, easy to install, easy to move and so on.
The digital wireless microphone designed is for low cost, simple design goal of the current radio frequency chips, audio chips and microcontrollers were pared to the preferred low power consumption is given based on digital wireless microphone hardware nRF24Z1 Structure and software implementation. .
Keywords: nRF24Z1 Short-munication Wireless Digital Audio
目录
1
研究课题的现状与前景 1
此次课题研究的内容 1
3
短距离无线语音传输系统原理 3
3
4
4
(ATX) 4
5
5
5
6
音频接收器(ARX) 6
7
7
nRF24Z1音频数据传输射频协议 7
4 基于NRF24Z1数字无线话筒设计 10
10
4.