Program Description:
The digital high-definition IP security monitoring system uses digital high-definition IP cameras for image acquisition and encoding. It is transmitted through existing or built-in proprietary IP networks in schools, and is stored by digital hard disk recorders or SANs. Video analysis servers can be optionally installed for video analysis. And through the digital video matrix and the access control alarm system linkage, allowing the sub-control at any place on the network, and the school's existing analog monitoring system can be connected to a complete set of campus security systems.
Since the digital network video device is a network as a transmission medium, based on the TCP/IP protocol, a digital video image monitoring system based on computer technology. It is different from analog monitoring. The analog video signal and control signal of the live camera are converted into digital signal transmission, reception, control, storage and display in the field. It is managed and controlled on a unified management platform to realize network and multi-level. Management.
The digital camera adopts digital signal transmission, which converts the optical signal into digital signal, then the image is compressed and processed by the DSP, and finally the digital compressed video is output through the network, in terms of anti-electromagnetic interference, progressive scan, and screen resolution. Both have the advantage that traditional analog cameras can't match. Digital cameras can reach megapixels or even tens of millions of pixels, and the colors are more realistic, more layered and better.
System upgrade, expansion, and stability
The IP monitoring system is a completely open, network-based architecture. Therefore, it is not important for storage devices and management software to be deployed. Only video capture devices such as front-end cameras are deployed on-site according to requirements. Other devices are theoretically located on any node on the network. can. Then there will be a lot less constraints on system upgrades and expansions. At the same time, the hardware devices adopt the plug-and-play structure, and the software adopts the modular method. Such software and hardware methods have two major advantages: the first is to improve the overall stability of the system, and the second is to greatly reduce the maintenance of the system.
Video analysis and linkage alarm
Video analytics technology comes from computer vision, which can establish a mapping relationship between image and image description, so that the computer can understand the content in the image through image processing and analysis. The essence is "automatic analysis and extraction of key in video source. information". IP intelligent video surveillance delivers a large amount of boring video image analysis work to an encoder or computer, freeing security personnel from traditional monitoring tasks. The system automatically detects and tracks and triggers alarms. Security personnel only need to perform video review and confirmation. Police and contact relevant departments to take measures.
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