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The Design and Reality of Embeded Remote Monitoring WEB Server Based on Multi-thread

Author: WangLei
Tutor: YuQiang
School: West China University
Course: Computer Software and Theory
Keywords: Linux S3C2440 Multithreading Video surveillance Web Thread pool
CLC: TP393.05
Type: Master's thesis
Year: 2011
Downloads: 111
Quote: 2
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Abstract


Widely used Web technologies bring to people's work and life had a huge impact . Web technology has a strong open and platform independent , which greatly reduces the workload of the design , development and maintenance of software and network communications system to reduce the cost of staff training to improve the management level of the device control and field testing . Embedded system with a low cost , small size, low power consumption and strong real research and development of embedded RMON Web server has a higher value and practical significance . This paper describes the design and realization based on S3C2440 and Linux embedded RMON Web server . Mainly by an embedded chip , the use of embedded real-time operating system and after simplifying the TCP / IP protocol stack structure of a dedicated Web server , and the video signal sent by the video capture digital compression , to the Web server via the internal bus , and by ADSL line is connected to the Internet . Internet users as a client without having to install additional software , you can watch images collected from the the embedded remote Web server directly from the browser . This paper describes the embedded systems and the development of the Web server status, trends , and then describes the system design of the hardware platform , including the selection of the NIC and image acquisition module . Followed by the establishment of the system software platform , Bootloader, kernel and file system principles and transplant process . The fourth chapter describes the using V4L2 technology on the acquisition of the video image , and use Jpeglib acquisition to image compression . Chapter First HTTP protocol and TCP / IP protocol analysis , then SOCKET programming and server design and implementation of the technology . Sixth chapter first analyzes the Linux multi- thread mechanism , and the introduction of the system of the thread pool thread pool design based on the completion of the preparation of the entire web server . After the design is completed , the entire design verification , including test environment to build , system performance analysis .

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