Remote monitoring principle
First, the video signal from each camera is input to the RV-2000 video capture terminal. Then, the RV-2000 video capture terminal converts the video signal into a digital image of 25 frames per second through the MPEG-4 image compression algorithm, After the audio and video data stream through the optical fiber network forwarded to the video monitoring center; Finally, the video monitoring center of the computer to receive the front of the image and sound data from the decompression and through the computer display screen and sound card for real-time monitoring.
The system uses hardware compression software decompression technology, in the relevant departments of the computer terminal to add the appropriate software or Windows comes with the IE browser Web function can be achieved remote video monitoring function, set the video monitoring workstation.
Camera control, arming and other control signals are downlink transmission, by the monitoring center to monitor the host to send a variety of control signals, RV-2000 video capture terminal receives the control signal, through the PTZ lens controller or direct control of the camera, or complete the deployment The
When the alarm occurs, the alarm decoder will be linked to the alarm output device, and through the alarm decoder to enter the alarm signal RV-2000 video terminal, and transmitted to the monitoring center, the monitoring center of the video server to receive the alarm signal immediately after the sound signal, Record alarm events, such as hard disk video alarm operation.
Network communication using TCP / IP and network multicast (Multicast) technology, to maximize the use of the network transmission performance and network bandwidth, to avoid network congestion.
