Design and Implementation of a Web-based Surveillance System Using Internet Multicast Communications

Multicast connections with the one-to-many communication model can reduce the loads of server and network by removing redundant traffic. In this paper, based on this architecture, we present our design of a surveillance system where users can retrieve live and pre-recorded surveillance video from any spots under surveillance through wire/wireless WEB devices or PSTN auto-dialup networks. To provide effective and efficient delivery of surveillance videos over Internet, mechanisms for application-level traffic shaping and motion detection are proposed. Implementation results show that our traffic shaping method helps this system remit the performance penalty from the low bandwidth network. Additionally, the motion can be detected with low false alarm in real-time. In this paper, we present not only the experiences of multimedia system implementation but also schemes to utilize multicast communications. It contributes to design and implementation of other applications in the future.