短距视频信号无线通信网络的设计与实现

摘要

The communication network video signal with short-distance wireless is designed, and the system is composed of a video signal transmitting node B, video signal transmitting and relaying node C, the video signal receiving terminal node A, control and display of four parts. B and C nodes are designed with low power consumption. Under the control of single chip microcomputer, they can realize one-way overlay character video communication from B to C nodes to the A nodes. At the same time, the A nodes can also carry out the C node local and relay forwarding functions simultaneously. System test results: under the premise of guaranteeing the image quality, the communication distance between nodes can reach 5m. The communication distance from B node to A node can reach 10 meters in relay mode, and the total power consumption of B and C nodes is less than 150mW when superimposed characters.%设计了一种短距视频信号无线通信网络, 该系统由视频信号发射节点B、视频信号发射与中继节点C、视频信号接收终端节点A、控制与显示四部分组成. B、C节点采用低功耗设计, 在单片机的控制下, 可分别实现B、C节点到A节点的单向叠加字符视频通信, 亦可实现对A节点同时进行C节点本机及中继转发通信功能. 系统测试结果表明: 在保证图像质量的前提下, 节点间通信距离可达5m; 在中继方式下, B节点至A节点通信距离可达到10m; B、C节点在叠加字符时总功耗小于150mW.