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The Research of Embedded Digital Video Monitoring and Control Technology Based on ARM Platform

Author: LiuYingMing
Tutor: QianHuaMing
School: Harbin Engineering University
Course: Detection Technology and Automation
Keywords: Digital video surveillance ARM Linux MPEG-4
CLC: TP277
Type: Master's thesis
Year: 2009
Downloads: 301
Quote: 2
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Abstract


Digital video surveillance system is a set of computer technology , communication technology and digital video technology in an integrated system , and take full advantage of the LSI and the network of scientific and technological achievements , compact , stable performance , communications facilities , and is widely used in transportation , banks, hospitals , and video conferencing , unattended and many other areas . The system is based on ARM microprocessor platform , transplant embedded Linux operating system , complete video capture , compression, transmission and other tasks . In order to reduce the cost of the product , the system uses ARM9 microprocessor S3C2410 as the main processor , as a video capture device to the USB camera , MPEG-4 video data compression software . Firstly, from the overall analysis of the overall design of embedded digital video surveillance system , the hardware framework and software system . Followed by success in the ARM hardware platform built armlinux embedded systems , including the design of the bootloader Bootloader modify the configuration of the Linux kernel and the production of JFFS2 file system , the completion of the driver of the USB digital camera . Video4Linux - based video capture program , interception pictures mmap ( memory-mapped ) way in the application development process , design , analysis of motion estimation in the MPEG-4 encoding model XVID procedures , half-pixel fast search algorithm , which reduce the number of search points to improve the computing speed . Finally, the open source JRTPLIB library RTP transmission of video data stream . The entire design is S3C2410 hardware platform , using the 2.4.18 version of the Linux kernel . MPEG-4 encoding optimization test is completed in the ARM Developer Suite (ADS) version1.2 . This topic is in the design of the ARM platform for digital video surveillance beneficial exploratory attempt to further complete remote embedded video monitoring system design has a positive meaning .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Monitoring, alarm,fault diagnosis system
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