摘要: 为实现灵活、畅通、可靠的井下通信,设计一种基于嵌入式Linux的移动会话初始协议(SIP)通信终端。该终端利用SIP作为应用层协议,在流动会话过程中提供对语音连续性的支持。设计一种灵活高效的SIP协议栈,在嵌入式平台下结合无线局域网技术,实现井下实时语音通话功能。实验结果表明,该终端通话质量较好。
关键词:
嵌入式技术,
会话初始协议,
无线局域网,
VoIP技术,
通信终端
Abstract: According to the current mine safety and actual needs, this paper introduces a design of mobile Session Initiation Protocol(SIP) communication terminal unit based on embedded Linux. The terminal uses SIP as application-layer protocol which provides the liquidity support for voice continuity during an ongoing session, and designs a flexible and efficient SIP protocol stack which implements in the embedded platform with wireless LAN technology to achieve real-time voice calls under-mine. Experimental results show that the terminal has good calls quality and a broad application and promotion aspects in improving underground communications and other functions.
Key words:
embedded technology,
Session Initiation Protocol(SIP),
Wireless Local Area Network(WLAN),
Voice over IP(VoIP) technology,
communication terminal
中图分类号:
程磊, 方天平, 鲍红杰, 程运安. 井下移动SIP通信终端的设计与实现[J]. 计算机工程, 2012, 38(7): 217-219,223.
CHENG Lei, FANG Tian-Beng, BAO Gong-Jie, CHENG Yun-An. Design and Implementation of Mobile SIP Communication Terminal Under Mine[J]. Computer Engineering, 2012, 38(7): 217-219,223.