【 Weak current College 】 digital communities of the concepts and related technology

Digital city-building people will associate the digital community, because the digital city will need to go through the community. Therefore, a digital community construction are bound and digital city. Digital communities will use many digital resources in urban construction. Digital community design should work with the cities of digital works closely with the development and construction, avoid duplication, as long as you stay out of the interface, you can avoid becoming islands of information.
　　
1 the concept of digital communities
Digital communities through digital information, management, service providers and each household to achieve organic connection of communities. It uses modern sensor technology, digital signal processing technology, digital communications technology, computer technology, multimedia technology and networking technologies to achieve the community's various information collection, processing, transmission, display, and highly integrated shared, communities and families of various mechanical and electrical equipment and security equipment automatic monitoring of building occupants, providing a safe, comfortable, convenient, fast, open, living and working environment, and ultimately save energy, reduce operating costs, protect the environment and improve service quality.

2 present situation of the digital communities
Since 1996, the national intelligence community building starting now, the number of new community reach 000, it is expected that by 2012 the number of tens of thousands of communities, the development speed and construction volume tops world. As the community's economy and the development of science and technology, from intelligent community development of the digital communities is a historical necessity.
The development of intelligent systems, digital communities, started by a single security system, and then will be gradually developed into a family and community safety, establish communication and computer network, configure the electromechanical equipment monitoring, three tables remote CC and property management office systems, so as to provide a highly residential district of security and convenient communication, integrated information service, modernization of property management, home management, intelligent and comfortable living environment.
　　
3 digital communities and intelligent community difference
Intelligent community is relatively independent information Islands, is a single, limited to the Community internal implementation of intelligent features. And digital communities is one intelligent community together as a network, is a comprehensive concept, its dependent basis apart from the community itself, cannot be separated from the digital city environment, it is hard to imagine an isolated digital communities able to leave the digital city.
Intelligent community oriented within communities to improve residential and technological means, mainly focused on the use of Community internal control network device control, and property management control. And digital communities emphasize the use of information within the community network for community information resource sharing.
Digital communities is a smart community improvement and perfection and further development of the digital communities have the intelligence community's main control functions, but with smart communities do not have some of the key digital information sharing capabilities. Intelligence community is built on the control system on the basis of the structure, digital communities is based on the information system on the basis of the structure. For LAN-based implementation of an integrated intelligence community to man as the basis for the integration of digital communities. Digital communities is the digital city of element node, the construction of the digital community is the foundation of the digital city construction.
　　
4 digital communities of content
Digital communities main content system includes four aspects:
◆ Community family digital life;
◆ Community digital property management;
◆ The community platform of digital equipment;
◆ Construction of community digital network.
Digital communities community site as the unified information platform, its main building digital reads as follows:
(1) community services
◆ Online query water, electricity, management fees, cost of consumption within the community, even if the owners are in the field, you can also log on to the Community authority website fees.

◆ Online booking community Clubhouse consumption, domestic services, household repair and other services.

◆ Community information statistics, complaint handling and other services.

(2) entertainment
◆ VOD
You can at home and on-demand the latest movie; enjoy online karaoke and music services, at any time on demand missed great TV.
◆ Network games
Community residents of their home, they can work together to play mahjong, chess, cards and the game world, you can chat while playing.
◆ Chat room
Community residents through chat rooms or OICQ, chat software, Exchange.
◆ IP phone
Community residents can download special software to a foreign relatives and friends play IP phones, if someone has a computer and network speed fast enough, you can also make video intercom.
◆ Community e-magazine
This is the community of entertainment publications, residents are free to contribute.
(3) information center
Community residents can learn more about their daily lives of various types of expenses, property management, community news, announcements and other information, or you can learn all kinds of news.
(4) community school
◆ Online schools
Community for children, the elderly, etc. through various online training courses, such as Web design, computer training, language training, leave school, old-age and calligraphy; over a network using a variety of interactive educational software, enjoy the brand new online education mode.
◆ Long-distance education
Community and school networking, home of counselling, access to information, parents and schools can also communicate in real time.
(5) of the stock market
And securities company networking, real-time quotes, technical analysis, stock analysis, principal trading, true high-speed "simple room".
(6) community e-commerce
◆ Online shopping

◆ Flea market
Community residents from the online trading market mutual garage, property management companies through management charge a Commission.
◆ Intermediary services
Online housing rent and other intermediary service.
(7) high-speed Internet access

(8) property management
Providing professional property management system, regulating a property management company's workflow, improve management level; on the other hand, through the community Web site so that tenants can at any time on-line query cost inventory, make service requests and complaints, etc, has enhanced its property management companies and communication among households.
(9) electronic mailbox
The establishment of a free email account within the community.

5 digital community building applications for major technology
Community Digital is a different discipline, using a variety of expertise, geographic range, relative and large complex systems engineering. At present in the community in the process of making the main technologies applied are:
(1) cabling technology: it is the intelligent building of the communication network and office automation systems, the establishment of a platform.
(2) access network technologies: the technology is digital communities and key external to the network, the current use of the access network in several ways: the traditional telephone system based XDSL technology, based on CATV HFC manner, based on fiber-to-area LAN access, and satellite broadcast network access methods.
(3) communication network technology: the typically used by a computer network, bidirectional cable TV network and telephone network, the first two as broadband home network.
(4) control network technology: computer distributed control mode has become mainstream, distributed control is the development trend.