Perspective: Building Intercom Technology Development Trends And Application
Building intercom system evolved from non-visible on black and white video intercom mentioned, black and white video of the mentioned type of security video intercom, but also to color video intercom, color video intercom network building can be developed to as the intercom (Family Intelligent Terminal), building intercom system from the development of independent systems to networked systems, from the way the bus network through the development of the semi-digital network, to further develop the use of mature TCP / IP network Technology Networking, from the single function type to the intelligent integrated control type, developed rapidly.
Digital China building intercom Market Are undergoing from analog to digital, from the bus system to a TCP / IP network transformation. Prior to 2007 TCP / IP building intercom Product The specific implementation of the still at the concept stage, but in 2008, TCP / IP building intercom technology is maturing into a real product, and began to put on the market. Many in the industry generally reflected than in 2007, 2008, the number of intercom products, IP network, integrated in a universal state clearly. Digital, TCP / IP technology began in the user market has been widely accepted, semi-digital intercom products, digital intercom products into the substantive application stage.
Through the development of the 2008 Beijing security situation was found, all TCP / IP technology, semi-digital intercom products are quite common. Many manufacturers of analog and digital combination of semi-compelling digital products, and some manufacturers have introduced a fully digital intercom products have become the development of the 2008 Beijing Security intercom series of outstanding highlight shows, digital products has become on the intercom stresses the importance of indicators of technology development manufacturers.
Such as intelligent digital home Matsumoto 880 series is the all IP network transmission of digital building intercom system, door from the room extension to the machine, to the management center (PC) are using TCP / IP data transmission, due to network architecture based on IP network, with the fastest speed network communications and call features a full range of all households, also have a very powerful system extensions.
This stage, despite the traditional analog intercom systems still account for a large market share, but its shortcomings are increasingly prominent. For example in the wiring structure, the model would signal transmission network is divided into main bus (network) and the branch bus (unit). Device from the management machine, cell door machine, door machine unit, the second confirmed tenants door machine, indoor extension form from the top-down hierarchical bus architecture. Management plane to the cell door machine, door machine is a residential unit trunk bus network, and machine to the household unit entrance door of the second identified machine room extension is a two branch bus. Both the main branch of the bus or bus, voice, video and control signal lines are required for the laying of a separate dedicated cable, the cable type and quantity will be greater, which gave the system cost and engineering trouble.
Now, semi-digital approach has been more common networking methods, namely TCP / IP networking to the cell door machine, door machine unit to the door machine and indoor household use a conventional bus mode. It is understood that the reason is that TCP / IP networking in the wiring, networking, signal transmission, system scalability, functionality can be extended, easy maintenance, network interference, multi-channel communications capabilities, etc., have obvious advantage.
Then compare digital TCP / IP intercom system, wiring is much simpler and less, all kinds of signals (audio and video, control) all integrated together in just a digital cable transmission, simplifying the wiring, the system equipment installation, commissioning, maintenance is simple. TCP / IP network can not only achieve the sound, image, control signal transmission, also realized the block of flats, residential Intercom Equipment All network. Technology for the system and network-based digital system can be used integrated audio and video codec module, ARM platform, its powerful data processing capabilities and hundreds of megabytes of bandwidth makes the original more than a single type of signal into a digital signal, the signal transmission change too "simple", the signal quality significantly improved greatly improve anti-interference ability, and can achieve with the cell perimeter alarm, Access Control card, and community services system for seamless integration.
With traditional analog intercom systems compared to the bus, prominent figures feel the IP Intercom has the following characteristics: transmission distance without geographical restrictions, extend a very easy upgrade; transfer of audio and video, control signals is much better than traditional bus mode; can achieve family alarm Home Appliances Control, remote monitoring, community service and other functions integrated; installation convenience, reducing the project cycle, saving for the project.
I am an expert from China Quality Digital, usually analyzes all kind of industries situation, such as recumbent electric bike , outdoor chess tables.
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