In recent years, buildingsVisual intercomAs a part of building intelligence, the system has become an organic part of residential construction, and has played a positive role in the safety of residential quarters.

Analysis of the advantages of visual intercom:

1. Simple wiring. Compared with the analog video intercom system of dry bus transmission, digital video intercom is more convenient in wiring, installation and debugging. Because the digital video intercom system uses TCP/IP to transmit sound, data, image and other signals, a network cable can solve all problems, greatly simplifying the wiring project, making the installation and debugging of the residential intercom system simple, and greatly shortening the construction period.

2. The network is powerful. When all signals are digitized, it is easy to meet networking needs. The indoor machine of the digital video intercom system is like a small computer, which has both high-performance CPU and DSP digital processing chip. The powerful data processing capability makes the network powerful and provides more convenience for the integration of other security subsystems.

3. Good scalability IP network has strong scalability. It can not only achieveVisual intercomIt can also realize multimedia information transmission, broadcasting, security alarm, smart home, IP video phone, VOD, image monitoring, value-added services and other functions.

If you access the Internet, you can configure, monitor, remotely upgrade, remotely read meters and other functions for any terminal (video intercom) on the Internet. It can not only meet the traditional video intercom applications, but also provide security alarms, smart home control and other functions, and has become the core hub of the "digital home.

4. Long transmission distance. Now the development of the community is getting bigger and bigger. Using image amplifiers and other solutions, the transmission distance can also be extended to several kilometers, but the implementation cost is too high. The tcp/ip-based video intercom system has no distance limit and can realize low-cost long-distance transmission.

5. Low comprehensive cost has always been a fixed concept in people's minds: "New technology means high prices, and new products need to be more expensive than traditional products." Therefore, as a good digital intercom system, digital intercom system, does its cost need to be higher than that of traditional analog video intercom system? In fact, from the perspective of installation, debugging and wiring, using tcp/ip transmission mode can reduce a lot of investment. In addition, the construction period is shortened, wire and labor costs are saved, and maintenance is easy. Therefore, the use of digital video intercom system is more advantageous in terms of cost.

Building visual intercom system generally includesVisual intercomThe intelligent type and network alarm can meet the different needs of different occasions, such as single family, villa, ordinary residence, high-rise building, social residential area, etc.

1. Single building general intercom system

The system is suitable for high-rise and multi-storey buildings that only require walkie-talkies and electronic unlocking without networking. It consists of a door host, a user extension, an uninterruptible power supply and an electric control lock. The bus structure is adopted, the main line is a three-core line, which is connected to the user through an interlayer distributor with two-core non-polar lines. From the bus to the user extension, the hierarchical distributor is used to isolate and protect the bus, so that any extension fault or extension line short circuit will not affect the normal operation of the system, which greatly improves the reliability and stability of the system. The user's extension needs to be coded, and the extension needs to be interchangeable to facilitate after-sales service. The system also has direct calling and digital options.

2. Network alarm intelligent system

　　Visual intercom: The networked alarm intelligent system consists of a management center, a community entrance host, an elevator entrance host, a user extension, an interlayer distributor, and various alarms attached to the user extension. The system adopts bus structure. The main line is a four-core line plus video line. The ladder diagram host is a four-core line plus video line from the inter-layer distributor to the user extension.

The building networking system can be equipped with multiple community entrance hosts and connected to each elevator entrance converter through a four-core cable (another video cable for the vision system) using a bus ring structure.