摘要随着信息技术的迅猛发展,人们对于语音通信设备的要求日益提高。集成度高、组网简单、携带方便的无线语音通信设备倍受青睐。因此设计一款带有语音通信功能的无线移动对讲机具有重要的实用意义。86507
本系统采用无线收发模块配合凌阳SPCE061A单片机的语音处理功能来实现无线移动对讲机功能。具体实现过程为:A套系统通过麦克风通道将输入的声音信号转换为电信号,采用SPCE061A单片机自带的ADC模块编码压缩后再由无线模块将编码后的数据发送出去;B套系统通过无线模块接收来自A套系统的编码数据,并采用DAC模块对编码数据进行解码,然后通过语音集成放大器输入到扬声器,从而实现声音的还原播放。
本文最先分析了无线对讲机系统的研究背景,并归纳阐明了国内外相应技术的研究现状,从而提出了无线移动对讲机系统的整体设计方案,在此方案基础上对硬件及软件子系统的设计与实现进行了详细说明,最后阐述了系统的整合与测试过程。
毕业论文关键词:语音传输; 61单片机;无线模块;无线移动对讲机
Abstract With the rapid development of information technology, people's increasing requirements for voice communication device。 High integration, networking simple, easy to carry wireless voice communication devices acclaimed。 Therefore, the design of wireless mobile voice communications with a walkie-talkie function has important practical significance。
The wireless transceiver module is used to cooperate with the voice processing function of the Ling Yang SPCE061A MCU in the system to realize the function of wireless mobile walkie-talkie。 Implementation process: A set of sound signal into the system via a microphone input channel for electrical signals, using built-in single-chip ADC module SPCE061A compression encoding before sending the data wireless module coded out; B sets of the system via the wireless module a set of receiving encoded data from the system, and using the DAC module decodes the encoded data, then input to the speaker by voice integrated amplifier, enabling playback of sound reduction。
Firstly, the research background of the wireless intercom system is analyzed, and summarizes the current research to clarify the appropriate technology, which made the overall design of wireless mobile phone systems, the design of hardware and software subsystems and on the basis of this program realization is described in detail, and finally describes the integration and system testing process。
Key words: Voice transmission; 61 Microcontroller; Wireless Modules; WMTW
目 录
第一章 绪论 1
1。1 课题研究的背景 1
1。2 国内外研究现状 2
1。3 本课题研究内容 3
第二章 系统总体设计 4
2。1 系统总体方案简介 4
2。2 硬件部分简介 5
2。2。1 SPCE061A开发板介绍 5
2。2。2 E39-TTL-100介绍 7
2。3 软件开发工具简介 8
第三章 硬件子系统的设计与实现 10
3。1 系统总体硬件框图 10
3。2 SPCE061A开发板主要模块 10
3。2。1 开发板内核子模块 10
3。2。2 电源子模块