文章设计并实现一种可运行于无线多媒体传感网中的无线视频节点。采用低功耗的S3C2440(一款ARM处理器为核心的开发板)为处理核心,完成基于V4L2(Video 4 linux 2,Linux中关于视频设备的内核驱动)的视频采集驱动及H.264硬件编解码,最终在其上运行实时传输协议(Realtime transport protocol,RTP),实现无线视频传输,取得了较好的传输效果。
A type of wireless video node running in wireless multimedia sensor networks is proposed in this paper. The low power modular S3C2440 is used as the processing core and the video capture as well as the H. 264 hardware coding and decoding process is driven by V4L2. The wireless video transmission system runs well with the help of the RTP protocol.