文档介绍：基于ARM的数字视频监控的设计
XXXXX
(长春大学电子信息工程学院,吉林省长春市,130022)
摘要:视频监控系统是安全防范系统的组成部分,它是一种防范能力较强的综合系统。现今监控系统已经步入了数字化、网络化时代,即视频从前端图像采集设备输出时即为数字信号,并以网络为传输媒介,基于TCP/IP协议,采用流媒体技术实现视频在网上的多路复用传输。使用嵌入式系统实现远程视频监控技术,符合网络化数字化的特点,对公安、安防等行业有着重要的现实意义。
视频监控系统一般采用基于PC平台+视频采集卡的形式,该方案系统体积大、成本高,在远距离、多点系统中实现困难。本设计采用Samsung公司基于ARM公司的ARM920T处理器核(CPU芯片含有视频采集接口),软件平台是Linux-,由于Linux操作系统的开放特性、优良的网络支持性能、模块化的结构,较好满足系统的需要。
关键词:视频监控;高级精简处理器;嵌入式;Linux操作系统
Based on ARM digital video monitoring design
XXXXXX
(Changchun University electronic information Engineering college, Jilin Province Changchun, 130022)
Abstract:Video surveillance security system is an integral part of the system,it is prehensive prevention system capability. The current monitoring system has entered the digital work era,that is,video from front-end image acquisition device when the output is digital signal, and work transmission medium, based on the TCP/IP protocol,using streaming media technology to achieve multi-line video multiplexing transmission systems using remote video surveillance technology,in line with the work characteristics of public security, security and other industries have an important practical significance. Video surveillance systems are generally based on the PC platform video capture card, the program system of large, expensive, in the long-range, multi-point system to achieve difficult. The design uses Samsung's ARM-based ARM920T processor core (CPU chip contains a video capture interface), software platform is a Linux- operating system kernel, as a result of the open Linux operating system features, excellent performance of work support, the module of the structure, better meet the needs of the system.
Keywords:video monitor and control;ARM;embedded;LinuxOS
1 ARM11简介
ARM11系列微处理器是ARM公司近年推出的新一代RISC处理器,它是ARM新指令架构——ARMv6的第一代设计实现。该系列主要有ARM1136J,ARM1156T2和ARM1176JZ三个内核型号,分别针对不同应用领域。
ARM内核的数个系列(ARM7、ARM9、ARM9E、ARM10E、SecurCore、Xscale、StrongARM),各自满足不同应用领域的需求,无孔不入的渗入嵌入式系统各个角落的应用。