基于ARM11+FPGA的多路视频监控系统关键技术研究  

Research of Multi-channel Video Monitoring System Key Technology Based on ARM11 & FPGA

作　　者：胡健生[1] 张倩[2] 蔡艳军[1] 

机构地区：[1]武警工程学院,陕西西安710086 [2]武警西安指挥学院,陕西西安710038

出　　处：《电视技术》2011年第21期120-123,共4页Video Engineering

摘　　要：针对当前多路视频采集远程传输系统存在的问题,提出一种基于ARM11和FPGA的解决方案,分析了系统的组成结构和关键技术。应用FPGA首先实现了对多路视频信号的同步采集,其次解决了对视频缓存操作过程中的存储、读写冲突及时钟同步问题,最后生成BT.656格式视频流进行后续处理。利用高性能ARM11处理器内部MFC模块,完成了对视频信号的H.264编码。系统采集到的多路视频信号通过网络发送,监控端实时接收数据,进行解码后显示,具有广阔的应用前景。Aimed at the problem of multi-channel video acquisition and transmission, a new scheme based on ARMll and FPGA is put forward. The configuration and key technology of system are analyzed. Firstly, FPGA realizes the acquisition of the multi-channel video signal with synchronization. Secondly, the problem of storage, collision between read and write, and the clock synchronization are resolved during operating the video cache. Finally, the video stream of BT.656 is created to deal with next. The video data is encoded by the MFC of ARM11 processor and transferred through net. The monitor decodes the receiving data and shows with strong practical and broad application prospects.

关 键 词：多路视频 采集传输 ARM11 FPGA 

分 类 号：TN876[电子电信—信息与通信工程] TN919.8