摘要
介绍了无线视频采集传输方案,利用CMOS微型数字图像传感器OV7660采样空间图像,DSP控制器TMS320DM642芯片根据OV7660同步时序控制图像数据采集,并实现基于H.263的实时编码压缩,压缩后的视频流经由基于TCP/IP协议的以太网无线传输到远程监控中心,最后通过上位机处理软件解码还原图像。另外,对压缩后的视频数据还可以通过USB接口进行本地存储,便于校验和查询。采用软硬件相结合的方式,降低了系统开发成本。
The project of video acquisition and wireless transfers was introduced in detail. The image was sampled by micro digital CMOS sensor OV7660. According to the synchronal timer of 7660, DSP controlled the whole capturing process. The image data was compressed in 14263 arithmetic by DSP. The compressed image data was transferred by multimedia network based on protocol TCP/IP to remote monitor center. The software on the remote PC decoded the transferred data and showed the video in the screen. In addition, the system can store origin video of YUV format by USB interface on local. The cost of the system is reduced by the method of combination of hardware and software.
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第10期46-48,共3页
Instrument Technique and Sensor
基金
国家自然科学基金资助(50535030)
