摘要
根据政府部门应急通信的需求,在考虑现有多个视频信息系统不能互通的基础上,根据现有的视频会议系统采用H.323体系架构和部分移动运营商采用SIP协议架构企业视频系统的情况下,提出了一种基于Web Service的可扩展视频互通网关设计架构,以实现无线图像传输系统、视频图像监控系统、3G移动通信系统,及卫星图像传输系统等视频信息系统接入到H.323/SIP视频会议系统中。在保持各系统特性和改动代价较少的条件下,研究了基于Web Service的视频互通网关设备的H.323/SIP的架构、呼叫过程、实现方案和扩展性等。该方案可以满足政府部门对现有视频信息系统视频业务的融合。
According to emergency communication needs of government departments and considering many video information system cannot interoperability,analyze the existing H.323 video conferencing system and some SIP video conferencing system used by mobile operators and studies a scalable Web Service-based framework of the video interoperability gateway.It achieves the wireless image transmission system,video surveillance systems,3G mobile communication systems and satellite image transmission system to access the H.323/SIP video conference system.This text research the H.323/SIP signalling structure,call process,design and scalability of the based on Web Service＇s video interoperation gateway device in maintaining the system features and costs less to change conditions.The project can meet the need of the government existing video information system＇s video integration,enhance its ability to respond to emergency situations and expansion in the future.
出处
《计算机技术与发展》
2011年第7期71-76,80,共7页
Computer Technology and Development
基金
国家973项目(613118010403)
