一种嵌入式视频监控终端拓展接入带宽的实现

The Realization of Broadening Access Bandwidth of Embedded Video Monitoring Terminal

采用随着数字无线网络的快速发展,基于无线网络的视频监控设备以其便携、机动和方便灵活的特点在多个领域得到了广泛的应用,已成为数字视频监控系统的一个重要组成部分。在实际应用过程中,由于现有的3G技术均采用了非对称的上下行接入速率且上行速率远小于下行速率,这成为了终端设备特别是多路视频接入设备和高清（720P）视频接入设备传输能力的瓶颈。本文提供了通过两路无线数字模块同时接入网络并传输数据,达到拓宽终端设备接入带宽的方法。

With the rapid development of digital wireless network, the video monitoring equipment based on wireless network has been widely applied in many fields due to its portability, motility, convenience and flexibility, which has been an important part of digital video monitoring system. But in actual applications, with present 3G technology, the upstream rate and down- stream rate is asymmetrical and the former is far less than the latter, which has been the bottleneck of transmission capability of the terminal equipment, especially the multiple video ac- cess equipment and HD （720P） video access equipment. This paper puts forward a method of broadening the access bandwidth of terminal equipment by accessing two-way wireless digital module simultaneously to the network and transmitting data.