Research Of A System For Transmitting Video Wirelessly Based On WinCE And Web

With the development of information and computer technology, people are no longer satisfied with the wire transmission, in some occasions they prefer wireless data transmission. The master's thesis tries to achieve wireless real-time video data transmission within local area network, in the occasions that wire is not convenient.This thesis analyzes the results of previous studies, designs an embedded wireless video data transmission system, on the basis of effective combination of advanced embedded technology, video technology, wireless local area network technology and Web technology. That is the innovation of my study. The program includes two parts, hardware and software. The software consists of Server-side and Client-side. Server-side consists of three modules, which are data acquisition module, web server module and wireless video transmission module. The three modules complete the video data collection and wireless transmission in local area network; on the Client-side, through the control module in the ActiveX control the server, at the same time receive and display video data. In this way, the client can achieve real-time data transmission with the server through the web browser, without connection to system software. The system has greatly enhanced the efficiency of maintenance and upgrades.The thesis is the part of the project of triaxial test pattern digital image measurement system, in Rock-Soil Mechanics Laboratory of Dalian University of Technology. There's not enough space to dispose wires, so the use of wireless communications to achieve real-time data transmission is needed.In this thesis, on the Server-side we use embedded processor S3C2440 as hardware platform, and Windows CE (WinCE) operating system as software platform. The first chapter describes the status quo and the development of embedded systems; the second chapter introduced the choice of embedded hardware and the design of interface electro circuit in detail; the third chapter introduces the customization and transplant of the core of the WinCE operating system, the use of Platform Builder, as well as the design of Bootloader; Chapter 4 studies embedded Web server-based communication protocol and designs the embedded Web server system structure; the fifth chapter introduces the WinCE device drivers, and gives a brief description how to achieve the camera's USB drive; Chapter 6 gives a detailed description of the software achievement of the whole system, put forward a number of shortcomings, and advance some suggest how to improve the work.