The United States recently released the "21st century technology: computers, information and communication" research report, for the 21st century high-tech in intelligent buildings in the application and development of the direction pointed out. The study pointed out that: "the future application of information technology will be built on the basis of interconnected networks, and has a good human-computer interaction and multi-dimensional processing capabilities. In terms of technology, the focus of development will be on virtual technology, collaborative work technology and visualization technology; in terms of application, it must be closely combined with application needs and emphasize comprehensive integration." Experts believe that the following high-tech will have a wide range of applications and prospects for sustained development in the 21st century intelligent buildings.
Network technology
Currently, Web-based Intranet network technology is becoming the mainstream form of information backbone network within the building or enterprise. With the advent of the new century, Intranet information network will certainly show vigorous vitality. Intranet / Intranet will create a new information world for people's information exchange and lifestyle.
Control network technology
Currently, the control network technology is to the architecture of the open network interconnection direction. Open control network has standardization, portability, scalability and operability. In the computer network technology, control networks to meet the requirements of openness, it is necessary to take the network interconnection of the development of the road, and thus from the field control bus to the control network is an inevitable trend.
Smart card technology with the continuous development of semiconductor chip technology, smart card small size, large storage capacity, easy to carry and use, good security and reliability, offline operation, a card with multiple superior performance is increasingly prominent. At present, the use of smart card systems in foreign countries for intelligent building security access control patrol management, parking lot fee management, property charges and management, commercial consumption and electronic purse, personnel and attendance management has become more and more common. These functions can be realized through a smart card "one card".
Visualization technology
This technology refers to the network-based video transmission, interaction and provision of multimedia video services technology. At this stage, digital video on demand and conference TV in intelligent buildings are using visualization technology to provide video transmission, interaction and service functions to the network desktop system in the building.
Mobile office technology uses network technology, communication technology, visualization technology, and home intelligence technology to provide a virtual office environment to off-site or mobile office workers. Mobile office technology is a synthesis of several modern technologies. The application of mobile office technology can make the home or travel on the way to the office staff as in their own office, you can enter the company's office processes at any time, anywhere, in a timely manner to deal with the documents and reading materials; to participate in the company held a teleconference, to participate in the speeches and discussions, and even through the family intelligence technology, remote operation of the office equipment in the office or remote control of electrical equipment at home.
Family intelligent technology in the early 1990s, some economically more developed countries have put forward the concept of "intelligent housing". Through the family intelligent technology, the realization of a variety of family and information-related communication equipment, home appliances and home security devices through the home bus technology HBS connected to a home intelligent system, centralized or off-site monitoring, control and management of family affairs, and to maintain these home design and residential environment in harmony and coordination. An informationized and automated living space with a high degree of security, living comfort and communication speed constituted by a home intelligent system will be able to satisfy the requirements of the 21st century information society in which people pursue a fast-paced way of working and a living environment that is completely open to the outside world.
Wireless LAN technology is a new technology of great practical value that emerged in the early 1990s. This new technology utilizes microwaves, lasers, and infrared rays as a transmission medium, freeing it from the constraints of cables. The use of wireless LAN technology can save the expensive expense of laying cables, avoiding the unreliability of cable termination, while at the same time to meet the needs of computers in a certain range can be arbitrarily changed geographic location, especially wireless LAN and mobile communications and satellite communications will play a greater role in the combination. Thus, the development of its technology is increasingly being people's attention and attention.
Data satellite communications technology in the international arena, it is widely recognized that data satellite communications technology and the emergence of the PC is the main symbol of information technology changes in the 80s. Data satellite, also known as small data satellite station?VSAT, the emergence of VSAT, the communications terminal extended to the office and home, the essence of its development is to lead the communications satellite technology to multi-functional, intelligent, equipment miniaturization, while the integrated application of multibeam coverage, satellite processing technology, terrestrial cellular mobile communications and computer software technology. In the 21st century, the development of data satellite communication technology will produce a new leap.
The two-way TV transmission technology can realize the TV signal from the front end to the user side of the top-down positive sending downstream transmission, but also can realize the signal from the user side of the bottom-up reverse sending? Uplink transmission. Downstream transmission of the signal is mainly television signals and data information, upstream transmission of the signal can be a computer terminal data information, or control or status signals generated by the control keypad, as well as the conversion of these signals into a form of signals that are easy to be transmitted over the two-way television transmission lines, and through the cable modulator, set-top box to achieve the interaction of information. At present, two-way television transmission technology can not only transmit high-quality television program picture, but also make intelligent buildings within the traditional CATV cable television transmission lines, transformed into a broadband high-speed network that can provide interactive information and data transmission for the future implementation of the intelligent building "Three Networks in One"? That is, the TV network, telephone network, computer network integrated transmission mode to provide a reserved network interface.
Experts predict that with the development and wide application of modern high-tech, some cutting-edge technology will also be in the field of intelligent buildings to show their skills. For example, laser communication technology, robotics, distance learning technology, virtual community technology, telemedicine technology and so on will play an important role in the intelligent building.
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