基于STM32与串口服务器的IP语音通信系统设计

Research on IP Voice Communication Based on STM32 and Serial Server

摘要:

针对模拟训练系统中语音通信的应用需求,提出了一种基于TCP/IP协议在局域网内进行IP语音通信的实现方法;分析了该语音通信系统的组成结构和工作原理,设计了以微处理器STM32F103ZET6为核心、以语音编解码芯片VS1053B为驱动的语音控制电路,SD卡连接电路和电源电路；移植了UCOSⅢ嵌入式实时操作系统增强控制系统的实时性和稳定性,采用FatFs文件系统管理SD卡存储设备;利用串口服务器实现串口数据与以太网数据的快速交换,完成模拟训练系统局域网的搭建,实现基于TCP/IP协议的稳定高效的IP语音通信。采用.NET Framework的Socket模块和Winform模块设计了上位机模拟网控软件;测试结果表明,系统稳定可靠、扩展性强,语音通信质量满足模拟训练使用要求。

Abstract:

Aiming at the application of voice communication in simulation training system, a method of IP voice communication based on TCP / IP protocol in LAN is proposed. The composition and working principle of the voice communication system are analyzed, the voice control circuit driven by the microprocessor STM32F103ZET6 and the speech codec chip VS1053B is designed, the SD card connection circuit and the power supply circuit are also designed.The embedded real time operating system UCOS Ⅲ is transplanted in order to enhance the real-time and stability of the control system, and the FatFs file system is used to manage the SD card storage device. The serial port server is used to achieve rapid exchange of serial data and Ethernet data and build the LAN of simulation training system, IP voice communications based on TCP/IP protocol is accomplished stably and efficiently. The .NET Framework's Socket module and Winform module are used to design PC's simulation network control software.Test results show that the system is stable、reliable and scalable, voice communication quality is good to meet the requirements of simulation training.