短距视频信号无线通信网络的设计与实现
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摘要
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150m W.
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 5 m. 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 150 m W when superimposed characters.
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 5 m. 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 150 m W when superimposed characters.
引文
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[2]张妍,任崇玉,肖亚妮,等.短距视频信号无线通信网络的设计[J].信息通信,2015,155(11),234~235
[3]张振峰.安防市场的持续增长称为物联网技术应用的新动力[J].物联网技术,2011,008(08):95~96
[4]张继民.动态字库的视频字符叠加器设计[J].电光系统,2006,6:57~58
[5]卞爱琴,张金艺,何建波.视频字符叠加器件及其应用[J].电视技术,2003,(5):74~76
[5]高吉祥.高频电子线路设计[M].北京:电子工业出版社,2007
[6]黄智伟.全国大学生电子设计竞赛系统设计[M].北京:北京航天航空大学出版社,2006
[7]谢自美.电子线路设计·实验·测试[M].武汉:华中科技大学出版社,2006
[8]樊昌信,曹丽娜.通信原理[M].第6版.北京:国防工业出版社,2006