Design Of Remote Monitor System Based On Video Image

With the development of the computer,network,communication,remote monitor based on video image becomes a new direction of researching and developing. The combination of the technology and image processing can achieve that the remote site can be monitored of multi-users, and then the control policy is given by users who working together with the live pictures. It can not only save a lot of resources, and enables users in different locations can assist and help each other, so it becomes an important model for remote monitoring technology.Based on the overall analysis of remote monitoring system, the remote video monitoring system is designed. The system consists of three parts: remote video monitoring server, remote information transmission network, and user control terminal. Video image acquisition system to capture on-site video images by the CCD camera and collected to the server based on VFW approach; The target images are preprocessed through the relay server, and based on background difference method to achieve the measured target of the extraction of the monitoring field; At the same time, achieved the image compression based on H.263 encoding mode, so as to achieve the network transmission; In C / S structure, the network competition and network congestion when multi-client access and interoperate to the server at the same time is solved by the use of IOCP mechanism; The decoding and the recovering is achieved by user control terminal, so as to monitoring the remote site real-time.Remote information transmission network is discussed. Network communication is the key to the normal operation of the whole system, so connection oriented transport layer protocol (TCP) is inside, in the idea of object oriented programming, achieved the aim of high reliability and high real-time communication networking among multi-user monitoring terminals and server by using the Windows Socket and multi-threads technology.