Research And Realization Of The Groupware-based Video Surveillance System Based On ADSL

This document expatiates the analysis, designing and implement of the Groupware-based Video Surveillance System based on ADSL .Now, with the rise of digital industry and the rise of people's consciousness of security, there are more and more limitations of the traditional watching surveillant video at settled point, which course that the remote video surveillance is popularly mentioned, using the remote video surveillance , people can get real-time information of the place being watched across in space. At the same time , because of the great rise of network information industry, it is very easy to get high bandwidth network sever, such as: Great Wall Broadband Network ADSL and etc., which provide transmission technological base for realization of the remote video surveillance.This paper expatiates the realization of the remote Video Surveillance System based on ADSL, we use the COM-based programming technology to implement the system. The main contribution of this paper includes:1. After carefully studying and analyzing the network transmission technologies, considering the technology feasibility and the project actual feasibility, we propose the idea to realization the Remote Video Surveillance System based on ADSL.2. By using UML to analyze and design the system, we make our system realize more complicate function and the system be inherited easily.3. using the COM-based programming to develop the software of the Network Video Surveillance System , we compartmentalize the functions of the system, we make the better reuse performance and maintenance performance, and ground for farther development of remote video software.4. We realize the RTP/RTCP in the network transmission component, so to get a better solution of the network video data transmission problem.We discusses in detail the key technology involved in the realization of the system, such as :digital image compression technology , network streaming media technology , real-time transmission technology and etc., and give a detail discussof key technology-development and realization of the COM component of themain function of the system according to method of COM-based programming technology. We also expatiate the designing and implement of the system.We related it in the following 3 parts: Firstly, we introduced the technical background and actualities in the development of the Network Video Surveillance System. Secondly, we described the key technologies involved in realization of the system and provide a solution to implementation of the system. Thirdly, we described in detail the designing and realization of the system: 1.To introduce the design of the sever program and client program of the system based on C/S model. 2.To introduce the method of COM-based programming by brief account of COM and it's correlative knowledge at first, then to introduce the realization of the system according to the method of COM-based programming. We described in detail the IDL interface definition of each component and key code. 3. At the part of the realization of the network component, we also expatiated the realization of theRTP/RTCP protocol and the involved key arithmetic and key code.At the end of this paper, we point out the problems need to be resolved and gives perspectives of the further development direction of the system.