智能小区的视频传输技术研究

Study of Video Signal Transmitting in Intellectualized Community

高质量的视音频通讯是智能化住宅小区很重要的一部分,为了优化智能住宅小区视音频在多路带载质量和传输距离方面的性能,同时降低架设载体成本,本文提出了一种基于双绞线硬件基础长距离平衡传输的智能小区控制与通讯系统结构.利用双绞线代替传统使用的同轴电缆,采取平衡发送、差分接收的模拟信号传输技术代替单端视频信号的传输技术,有效地解决了普通视频电缆远距离传输信号时的图像失真及畸变等问题.可见,在智能小区使用双绞线传输视频信号具有同轴电缆所不具备的优势.

High quality transmission of video and audio signal is an important part of intelligent communities. In order to optimize the capability of video and audio of intelligent communities in the quality of multi-route capacity and the distance of transmission,and reduce the cost of spanning the carrier at the same time, a control and communication system based on twisted-pair＇s long-distance balanceable transmission is put forward. Using twisted-pair to replace the traditional coaxial line and using balance transmission and difference receive to replace the single terminal video signal transmission technical can settle the problems of image distortion and aberrance in long distance signal transmission. The advantages of using twisted-pair to transmit the signal are obvious. The coaxial line doesn＇t have the advantages.