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In recent years, with the rapid development of computer network and communication technology , multimedia technology , the traditional video surveillance system toward a new direction of development with constantly updated and development . Thus the combination of computer network technology , multimedia technology and communication technology in multimedia digital video surveillance system . This topic is designed and implemented the video surveillance system in Ningbo City . In this paper, a digital video surveillance system project for research and development background , front-end acquisition technology , coding technology , mobile video technology streaming media technology research and analysis , and for the system design and development . The analysis from the actual needs of the necessity of the video surveillance system construction of Ningbo , and choose the networking mode of the system - security professionals network construction . System management service module , video master client module , WEB remote management module , video plan module , Police Inspector module system , all-weather , all-round monitoring capabilities , image scheduling control functions , image recording and backup features the historical image retrieval and recovery , network transmission and image sharing capabilities as well as GIS electronic maps and other features. In normative , advanced and practical security design , scalability and compatibility , openness , reliability , systematic , technical and management combine , stratification, the least privilege principle . Aspects of the design of user rights , authentication, security log . The successful construction of this system , multiple communication nodes , centralized configuration and management of mobile front-end video capture devices , making mobile video surveillance system flexible and rapid deployment possible , and then completed a key function of the dynamic security precautions \building a harmonious Ningbo .
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