【 Weak current College 】 buildings information system development and application of

Buildings information system, hereinafter referred to as BIS system (BuildingInformationSystem) is installed in a residential area, such as building danyuanlou, office buildings or buildings, image and voice to identify the visitor, with various front end sensor acquisition data and security information for a variety of intelligent control, control, door locks and emergency signal sent to the Central Administration Help and a variety of automatic control information management center can also be carried out with household voice, data, instructions or text information communication platform, or by a unified bus to the same network platform joins the device integration.
To Visual intercom system-based platform that includes security alarm system, surveillance video systems, home appliances, lighting control, home automation systems, home information systems, home entertainment system, property management information system (see Figure 1). By various gate host, household, or intermediate transfer switch and species composition of Central Administration, and other equipment.

Buildings information system due to its product development of historical reasons and technical characteristics of the product, has covered the Visual interphone, simple-speaking, residential alarm, IC card entrance guard, short information distribution, household appliances control, video surveillance and perimeter linkage, security information management, and other uses or fields, and building information systems are still in product integration and technology of fast development phase.

Buildings information system and cell security door, steel door, property management service households together for the benefit of residents, visitors access provides a convenient, safe and civilized, comfort, the smart way of life, while providing property management service provides a centralized, quick, effective management and control platform, enhancing the efficiency of information management, reducing adverse event or a case of incidence.

First, the buildings information system status and application

Buildings information system by building intercom and building control development and simple intercom system development earlier, in the late 1970s has application in my local area. Independent House type Visual interphone, danyuanlou Visual intercom system in the 1980s into mainland China. 1993 Shenzhen vision must get the company developed the first set of black and white video intercom products, then in Guangdong, Fujian, and has also appeared in some of the manufacturers began to produce intercom system products.

After ten years of development, the intercom system types have unique House, Villa, low level system, multi-tiered system, senior systems, intercom systems, intercom systems, intercom Visual styles system, versatile intercom system, color video intercom system, network, system, large gains, etc. Due to the Chinese mainland housing industry and the rapid development of property management, greatly contributed to the building information system, whether the product or technology are rapidly increasing. As a result of domestic manufacturers keep up with the demand of the domestic market, the characteristics, the intercom system development to set security, home intelligent, multimedia information network as one of the buildings information system. The original relative to foreign manufacturers relatively late in the product, only ten years crowd out the history of foreign products or forcing foreign products in turn on the Chinese market, learning Chinese products.

Product status and application:

Door machine types enclosed gantry crane, gantry crane danyuanmen machines, household, there are Visual, non-Visual, Visual has a color CCD, black and white CCD, from households with direct-call for capacity type, encoding type. Now in the high-end products usually have LCD Chinese operation menu prompts, bulk password lock function, IC card entrance guard lock and management capabilities, product operations tend to be more user-friendly, intelligent.

Indoor terminals types have viewable, non-Visual, Visual display with black and white CRT and LCD color display, a normal video intercom and multi-function alarm intercom. In addition to General also integrates emergency alarm and information display. High-grade product also uses the touch screen menu actions, household appliances control, image storage, and personalized Polyphonics choice, individual products or even also integrates automatic meter reading module and family information modules, products have been obvious to the role of the family intelligent Terminal, is no longer the traditional sense of the intercom products.

Management machine generally has monitored danyuanmen, call household, receive indoor call or Aviso, Chief garrison to information. After the computer joins can conduct information dissemination, communication and alarm information analysis of statistics on the use of electronic maps in General can visualize various residential layout information. Some software can do monitor the video, System Diagnostics, remote communications, remote control, etc., and can serve as an information sharing platform integrated meter reading, CCTV surveillance, perimeter defense, property repair, home multimedia, home entertainment and other subsystems.

Technical status:

Buildings information system electronic technology involved in a range, from traditional analog technology to advanced digital technology; from the ordinary level control to the modern CPU control, PC control and network communication technologies are applied.

The door the host mainly uses of technology are: CCD camera technology, infrared supplemental lighting technology, audio processing and transmission technologies, CPU control, bus or network communication technology, text compilation and display technology.

Indoor terminal extension key technologies include: audio processing and transmission technologies, video display technology, CPU control, decoding and communication technology, image processing and storage technology, touch screen control technology, text video overlay technology, bus or network communication technology, wireless receiver technology, TFT-LCD display technology.

Transport equipment mainly uses of technology are: CPU control, decoding and communication technology, custom coding, RS485, and other types of bus communication technologies, in a large network has launched audio and video digital compression decompression technology and TCP/IP broadband communications technology, optical fiber communication transmission technology. With the property management requirements, development and community building for large-scale development, in a large community networking in analog audio and video transmission technology and RS485 communication technology will soon be digital audio and video optical transmission technologySurgery and TCP/IP communication technology.

Front-end information acquisition equipment mainly uses of technology are: infrared sensor technology, smoke detectors, gas transmission technology, temperature, position, pressure, flow and humidity sensor technology.

Second, the buildings information system development


Buildings information system on the one hand by people seeking a safe, convenient, comfortable, intelligent residential construction demand-driven; on the other hand is protected by digital broadband network communication that mainstream technology drive, building information system both in product design or technology applications are in the process of rapid development. Technology development trends

1. the digital

System during the transfer process, audio and video signal and sensor acquisition of signal from analog to digital technology development. Digital technology chip prices. Audio and video digital compression, decompression, after by software extract gradually to hardware decompression transition. For compression, decompression, MFEG4 mainstream formats.

2. Networking:

With the application of digital audio and video, IP network will become the primary means of system interconnection, and the LAN to the INTERNET development, realization of remote information calls, remote control and remote maintenance. Current analog and digital networks co-exist.

3. integration:


Because digital technology standard, cross-industry, the system transfers and other security systems integration, integrated in the same information platform for transmission. From the initial computer management-integration to transport integration development, and ultimately the user terminal integration.

4. intelligent:

In digital technology level implementation of automatic data processing, information sharing, system interaction, automatic diagnosis.

Product development trends

1, intermediate transmission equipment:

Due to the application of digital technology, the progressive replacement of the TCP/IP protocol to RS485, CAN, pulse codec, control signal transmission, intermediate transmission of conversion equipment and relay devices disappear.

2. terminal equipment technical content promotion:

A and terminal equipment in the system to transmit digital after terminal equipment for digital and analog device usage reduction, digital IC usage increases, the volume is smaller, thinner.

B, terminal equipment integration increase: by 1-2 development of seed system functionality to the family of intelligent control Terminal. The home security features and home intelligent, home information direct integration.

C, a variety of Humanized interface: as many practical functions of the subsystem, the operations become more complex. The Chinese menu, touch screen, handwriting input, voice prompts, and other user action techniques step by step.

D, black and white image showing a low end product, color displays the image in the basic configuration of high-end products. And consists of 4 inch screen to large screen development, to 5 inch 5.6 inch mainstream, intelligent Terminal products to 7-inch 8-inch and larger screen.

E, mobile terminals will appear, because the system IP network transmission technology, System Administration, user terminal and INTERNET access, and mobile phones, PDA, laptop and other devices of information sharing.

3, product appearance by between civilian and industrial equipment between roles, gradual transition to home decoration, personalized role. And transmission equipment then transition to standards in the field of industrial control equipment.

As the electron, communication technology development for Chinese residential community building and management needs of the buildings information system has been in Visual interphone, based on the fusion of information appliances, smart control, computer network technology, a Chinese characteristics of the industry, its technology and products have come to the forefront of the like product in the world. Throughout the construction, building information system will be more rapid development, to build a harmonious society and create favourable conditions.