The development history of the building intercom

The development history of the building intercom
Intelligent residential construction in China started late, but rapid development. With the popularity of Internet Internet, many communities have realized broadband connection
The information superhighway has been laid, to the community and into the family. Intelligent community system using TCP/IP technology conditions have been met. Intelligent community system
Basic operation is changing from small on-site bus to Internet, from decentralized management to centralized management, change. From the building intercom system development stage
This can be seen: Digital intercom is the inevitable trend of building intercom!
Building intercom technology development experience can be divided into four stages
The 1 single intercom
The earliest building intercom products have single function, only the unit talkback function, only a small area within a single building communication, not the whole district
Large area network. And decentralized control systems are not compatible, act of one's own free will, is not conducive to the management area, the system function is relatively simple. At that time
Market, small capacity, annual demand in domestic market less than one hundred thousand households.
The 2 single visual intercom
With the development of society, people's demand increased gradually, the original no networking and invisible requirements have been unable to meet, so the * * net. Building
Intercom products has entered a period of rapid development, large community network and integrated intelligent building intercom equipment began to emerge. The rudiment of network video intercom system too
The emergence of digital signal using wire transmission, control, building intercom system using coaxial cable transmission of audio and video, so it needs two sets of line wiring. This
The system broke the traditional bus architecture, building intercom systems for the transition to digital stage, and provides the possibility to witness.
Visual intercom 3 multi function
With the rapid development of computer technology and the popularization and application of Internet, so that the people's work, life has undergone tremendous changes, digital, intelligent small
The concept has been accepted by more and more people, building intercom products also carry this trend, the development of high-speed, multifunctional talkback device
The emergence of. Digital communication technology has a breakthrough development! With the network transmission of data, fuzzy concept of distance, can be extended indefinitely. The security system integration
To the device, improve the practicability of equipment.
4 take one's ease the visual intercom
Wide area network digital video intercom system of the market has quietly emerged in the national scope, and the stability of the system, operation is very stable and reliable.
Digital video intercom era coming true! Wide area network video intercom system is based on Internet Wan on the indoor machine, digital as small
Terminal in the network plays two roles. One is the visual intercom to realize multi cell communication by the indoor digital; two is through community Ethernet
Realization of communication between the same or the Internet anywhere on the net video IP telephone or PC.
In conclusion the main development direction of visual intercom product is digital, digital is the route one must take the development of visual intercom system. Building intercom system has been put into
Visual intercom times take one's ease of entry!

Source: Tian net community