Analog to IP video surveillance, you ready? - Video - Radio and TV Industry

Analog to IP video surveillance, you ready? - Video - Radio and TV Industry

Today's security monitoring system has not only complicated wiring to go analog fiber-optic monitoring system, and it relies more on network video surveillance system, with the increasing development of science and technology, IP network video surveillance demand more and more heat. Together with a large analog control system architecture to make it difficult to meet the needs of users, therefore, IP-based trend will be unstoppable.

IP surveillance system is warming, on the one hand is the growing size of the market, on the other hand is the control system and computer, network, exchange, storage and other technology increasingly close linkage between computer, network, storage, exchange, chips to the IP of each innovation monitoring system will bring new opportunities and challenges, whether old or new construction project transformation, more and more people are considered and implemented the deployment of IP video surveillance system. Analog to IP video monitoring the transition, you ready?

Let us first look at monitoring technology development process.

Early monitoring system called CCTV, the CCTV monitoring system, is the first generation, the main component is an analog video camera equipment, Quad, video cable, matrix, keyboard and video equipment, VCR. CCTV system has nothing to do with computers and networks, even if the latter can use the computer GUI operation and increased matrix networking, but the core technology or analog switch.

Second generation of DVR products appear to people shines, DVR use Digital Video image processing methods, and applications of computer and network technology, video stored on the hard disk, you can use the network for remote management. However, its main application is with the matrix realization of digital image storage, have called this structure for the hybrid structure modulus, as matrix switching and control to achieve, DVR functionality to replace VCR to achieve a video.

IP cameras, encoders, and the emergence of NVR allow people to enter the full IP digital video age, we call the third generation, the traditional video matrix is replaced by networks and software, called virtual matrix; video camera into the nearest upload digital signal to the network (like the DVR did not need all the video needs to connect to the DVR's BNC access); large-capacity storage device to replace the limited internal DVR hard drive capacity; intelligent video analysis capabilities built into the IP camera or encoder; Cross-building, inter-regional and even inter-city network and video network for easy.

Advantages and disadvantages of analog matrix system

1, stability, technical maturity Analog era, the core product is the matrix which was born to present a history of several decades, is the video surveillance of the most important role, other analog equipment as its own characteristics, the stability matrix have been verified and recognized, and over the years, people used to give a strong preference matrix, it is difficult to accept and even out of history Arena .

2, installation, simple maintenance Simulation matrix of the times, is the video surveillance of the "workers" of the times, according to wire drawing, the workers can matrix and post-installation maintenance, just like DVD and home TV connection, like cable accordingly, the matrix power can work. Maintenance personnel do not need too many computers, networks, storage knowledge reserves.

3, expansion difficult Simulate the characteristics of the decision matrix itself bound by the core of its collection of architecture, the system of all video, control, need to connect all the control center where matrix, matrix itself is CPU + video card by way of case. System Expansion commonly used method is to increase the chassis and the board, the space, capacity, are limited. Must be increased, and the expansion of hardware?? Therefore its scalability, extensibility has done very well.

4, weak networking

Matrix often encountered in network video needs, but to achieve the matrix network, usually on the video input and output cards cascade, controlled by the serial cascade, requires a lot of coaxial cable, fiber optic and Optical Equipment, high cost and has distance limitations, interconnection matrix also has some functional limitations.

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