短距离无线视频传输系统的设计

下载后可任意编辑短距离无线视频实时传输系统的设计 摘要短距离无线通信一般是在几十米范围之内的短距离无线电传输。本次作品以 MSP430 系列为主控制芯片，采纳无线信号的收发模块,由AV 摄像头采集的视频信号从 B 或者 C 节点传输到 A 节点。然后选择从 B 或者 C 节点的视频显示，并通过 MSP430G2553 单片机采集视频信号。然后，lm18811 芯片、字符叠加芯片 uPD6453 芯片，运算放大器芯片 opa836 和外围电路的同步视频信号分离，B 或 C 节点上发射视频信号，以及对应字符“B”或“C”叠加，或 B 节点通过 C 节点和 A 节点进行通信。并且，C 节点作为中继可以传输 B 节点的视频信号。关键词：MSP430，短距离无线通信，字符叠加下载后可任意编辑DESIGN OF SHORT DISTANCE WIRELESS REAL-TIME VIDEO TRANSMISSION SYSTEMABSTRACTIn general sense, as long as the communication and information transmission via radio waves, and the transmission distance is limited in a shorter range, is usually dozens of meters, can be referred to as the short distance wireless communication.Through the wireless transceiver module,this system uses MSP430G2553 single chip microcomputer as the main control chip. The video signal of B and C nodes, which is captured by AV camera, is transmitted to A nodes. By capturing switching signal,the MSP430G2553 microcomputer accomplishes the displaying chosen of the node B or C. Then by Synchronous video separation chip LM18811n,character superposition chip UPD6453gt, high-speed op-amp chips OPA836 and their peripheral circuits,we add the character design 'B' or 'C' at the video signal of the B or C node. We also finish relay communication from B node to A node in C node. The video signal is still can be sent from B node to A node when the C node is as the relay and the power consumption is less than 150mw and there is no distortion of the image.KeyWords:MSP430,Short distance wireless communicati...