嵌入式3G无线视频监控系统硬件设计与信号完整性仿真  

Hardware design and signal integrity simulation of embedded 3G wireless video surveillance system

作　　者：黄帅[1] 许雪梅[1] 徐蔚钦[1] 周文[1] 

机构地区：[1]中南大学物理科学与技术学院,长沙410083

出　　处：《计算机应用》2010年第9期2535-2537,2540,共4页journal of Computer Applications

基　　金：中国博士后基金资助项目(20070420825);中南大学博士后基金资助项目

摘　　要：提出了一种基于DaVinci平台的嵌入式3G无线视频监控系统的解决方案。该方案充分利用WCDMA网络的高带宽,可进行两路视频的同步监控。对系统的硬件设计进行了深入的探讨,设计了各个功能模块。应用Hyperlynx软件与IBIS模型对硬件PCB设计进行了仿真分析,有效地解决了系统DDR2接口电路中出现的反射、串扰等信号完整性(SI)方面的问题,充分保证了高速PCB设计的质量和速度。相比传统的有线视频监控,该方案更加灵活,使用范围更加广泛。A solution of embedded 3G wireless video surveillance system based on DaVinci platform was proposed, which took full advantage of the high-bandwidth of WCDMA network and could realize two-way video surveillance in parallel. The hardware design was discussed in depth and various functional modules were designed. The simulation analysis of hardware PCB design was made by use of Hyperlynx software and IBIS models. The Signal Integrity （ SI） problems, which usually appeared in DDR2 interface circuit such as reflection and crosstalk, were resolved effectively. And the quality and speed during high-speed circuit PCB design were fully guaranteed. Compared to the traditional wired video surveillance, this solution is more flexible and can be used more widely.

关 键 词：DAVINCI 无线视频监控 PCB设计 DDR2 信号完整性 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]