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针对目前的局域网视频监控传输系统,以嵌入式Linux操作系统为平台,应用用户数据包协议(UDP,User Datagram Protocol)穿越网络地址转换(NAT,Network Address Translation)技术,设计了远程视频监控系统。该系统由2部分组成:发送端和接收端,由于2者分别处于不同的内网中,无法直接通信,故采用UDP穿越NAT技术,搭建公网服务器以协助双方建立连接并传输视频。经测试,该方案可以较好地穿越NAT,并且在接收端电脑上能实时的显示视频图像。
In view of the current LAN video surveillance transmission system, a remote video surveillance system is designed based on embedded Linux operating system and User Datagram Protocol (UDP) network address translation (NAT) technology. The system consists of two parts: the sender and the receiver, as the two are in different internal networks, can not communicate directly, so the use of UDP through NAT technology to build a public network server to help both establish a connection and transmit video. Tested, the program can better through the NAT, and the receiving computer can display real-time video images.