基于MPEG-4编码的近距离无线视频传输系统  

A Short-range Wireless Video Transmission System Based on MPEG-4 Encoding

作　　者：关晓磊[1] 李志强 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]北京机科发展科技股份有限公司成套事业部,北京100044

出　　处：《电子科技》2011年第6期45-50,共6页Electronic Science and Technology

摘　　要：为实现近距离无线视频传输,提出了一种基于MPEG-4编码的近距离无线视频传输方案。由CMOS摄像头OV7620采集到的数据,通过专用MPEG-4编码器,ML86410得到速率低于2 Mbit.s-1的MPEG-4数据流,在FPGA控制器的控制下,通过nRF24L01无线发送;接收端利用同系列芯片nRF24LU1接收无线数据,其自带USB协议和接口,再把数据流送入PC显示。通过仿真板电路测试,获得了良好的图像,证明电路可以实现视频无线传输的结论。In order to achieve short-range wireless video transmission,this paper proposes a short-range wireless video transmission scheme based on MPEG-4 code.The data collected from a CMOS camera OV7620 are processed by a dedicated MPEG-4 encoder ML86410 to obtain the MPEG-4 data stream of less than 2 Mbit·s-1,which is then sent through the wireless nRF24L01 under the control of the FPGA controller.The receiver uses the same chips nRF24LU1 to receive wireless data with USB protocol and interface.Then the stream can be sent into PC for display.Circuit board simulation achieves good images,which shows that the wireless transmission of video circuit is successful.

关 键 词：MPEG-4编码 ML86410 无线传输 NRF24L01 nRF24LU1 

分 类 号：TN919.72[电子电信—通信与信息系统]