基于GM8126的数字可视对讲系统设计与实现  

Design and implementation of digital video intercom system based on GM8126

作　　者：孙克辉[1] 喻炜[1] 

机构地区：[1]中南大学物理与电子学院,湖南长沙410083

出　　处：《计算机工程与设计》2014年第5期1619-1623,共5页Computer Engineering and Design

摘　　要：为了设计高性能数字可视对讲系统,采用GM8126芯片作为主控芯片,利用Android智能手机作为室内机,设计并实现了一款可视对讲系统。采用多线程技术实现音频数据、命令数据的双向传输、视频数据的单向传输,采用H.264格式对视频数据进行硬件编码、软件解码,选用G.711A率标准压缩音频数据,利用RTSP协议实现音视频数据的实时同步传输。测试结果表明,该系统音视频效果良好、运行稳定。To design a high-performance digital video intercom system, a digital video intercom system is designed. It is implemented by employing a GM8126 as the main controller and an Android smartphone as the receiver. Multi-thread technology is adopted to implement the bidirectional transmission of audio data and command data, the unidirectional transmission of video data. The H. 264 standard is used to implement hardware encoding and software decoding of the video data. The audio data are compressed according to the A-law of G. 711 standard. RTSP protocol is applied to realize real-time synchronous transmission. The test results show that the system has good audio and video effects, and stability.

关 键 词：GM8126 可视对讲 安卓 H 264 实时流传输协议 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]