After years of development, the building intercom system has formed a certain scale. Various new technologies and new concepts have been applied in the building intercom system. At present, the building intercom system has reached a platform period and also encountered With new development opportunities, the building intercom system will gradually develop towards the direction of home intelligence.
Video intercom advantage
From the 1990s, the video intercom system was applied in the domestic security system. After more than 20 years of development, the video intercom has grown into an important member of the security family. From the earliest analog non-visual intercom to the development of video intercom system, the communication between the visitor and the host was realized, and later a series of functions such as unlocking, security management, alarm networking, etc. The real experience. With the development of network technology, a visual intercom system for TCP/IP protocol and digital audio and video transmission appeared in 2004. The emergence of visual intercom based on the form of network data transmission has caused a great response in the industry, and it has eliminated the trend of analog video intercom. At present, with the influence of the development trend of security intelligence, it is necessary for the video intercom system to take the road of network, digitization and high definition to meet the higher requirements of users. The digital video intercom system has the following five advantages:
The wiring is simple. Compared with the analog video intercom system transmitted by the bus system, the digital visual system is much more convenient in terms of wiring and installation and debugging. The digital visual system greatly simplifies the wiring engineering, making the installation and commissioning of the residential intercom system simple and the construction period shortened.
Powerful networking. When all signals are digitized, it is easy to meet the needs of networking. The indoor video of the digital video intercom system is like a small computer. The powerful data processing capability is that the networking function can be realized and become more powerful.
Excellent scalability. IP networking is highly scalable and extensible. It can realize visual walkie-talkie, and also realize multimedia information transmission, broadcasting, security alarm, smart home , impact monitoring and other functions.
The overall cost is low. From the point of view of installation, commissioning and wiring, the TCP/IP transmission method can reduce a lot of investment, plus the construction period is short, the wire and labor costs are saved, and it is very easy to maintain. Therefore, the digital visual pair is adopted. Talking about the system, the cost is more advantageous.
The transmission distance is long. Nowadays, the development of the community is getting bigger and bigger. The analog video intercom system can use the image amplifier, and can also extend the transmission distance to several kilometers, but the cost is too high. At present, the digital video intercom system adopts broadband carrier technology, which can realize low-cost long-distance transmission, and has advantages over optical cable transmission data.
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