Tuesday, January 31, 2012
【 Weak current College 】 based on telecommunications networks in the home gateway
First, the home networking and home gateway overview
Home Gateway (HomeGateWay) also known as RG resident gateway, is the realization of various devices within the home network and the external device to communicate with the device, and is home networking in the core components. Through the device in the home network, and interact with information telecommunication networks, or you can conduct an internal device information interaction. Home Gateway within the family to establish a unified data processing centre, on the data within the family, the external connection operator network. RG Forum organized on a residential gateway is defined as: a simple, smart, standard, flexible throughout the home network interface unit, you can select from various external network receive traffic signal, the signal is passed through a home network to all devices.
Next generation network (NGN) is a business-driven networks. The family currently used to consolidate multiple digital application device access home gateway's award-winning attention. Its driving forces on the one hand comes from the user's business requirements, on the other hand is carrier of all ages.
To the user, along with high-speed broadband Internet access and home PC's popularity, more and more digital multimedia devices such as notebook computers, mathematics, TV, mobile, fixed line, as well as other consumer electronic products, it is often necessary to at the same time by different network access to the Internet. At the same time, a user on network quality cheap service, such as Bluetooth VoIP phone services, business services, IPTV makes home gateway application is launched automatically. Home gateway allows users to easily set up a home network, intelligent connections, and to facilitate the management of the family and outside the network and multimedia equipment.
On operators, the residential gateway is upgrading its business on individual user penetration best weapon is its access network extensions and extension. Through a home gateway, operators can shorten the distance with the users themselves to facilitate new business and value-added business expansion. Home gateway can make operators from past the "last mile" to today's "last ten meters". In addition, due to the mobile network to fixed network operators to block the alternative, fixed-line operators will actively promote the FMC. FMC as its out optimization tool. FMC's Fusion for three levels of integration, including the integration of the Terminal side. Fixed and mobile networks of fusion, FMC systems require extensive home gateway terminal equipment. This will further contribute to home gateway standard promulgated and technology matures. United Kingdom and France Telecom Telecom BT FT business of FMC is a typical family network guanchenggong commercial cases. Therefore, you can view the family network is a fusion of the network, which combines fixed and mobile network.
Second, the residential gateway reference model
Based on the telecommunications network of home gateway must have two main features is the ability to provide broadband access and IP-based data processing. Home gateway is in the Centre of the home network, so in addition to meet user needs to consider its flexible extensibility. This can ensure that users of investment, but also to meet evolving business needs. Family network should include the following network entities: network access functional entity (NAE), responsible for the end of the access technology; home network core functional entity (HCE), is responsible for completing the core family networking features, including the networking of domestic devices, remote management, QoS, security, etc.; function processing entity (FPE) non-IP/IP conversion, as well as the signaling and media format conversion; user terminal functions, entity (EUTE) used directly by the user, provide a user interface (UI). The physical device on your home network can be divided into 4 categories: access network terminal equipment, home gateway, adapter device, user terminal equipment. Which adapter device complete non-IP devices to IP network transformation access feature.
Home Gateway provides business has the following categories:
(1) broadband access of family communication within the family and family communication is the most basic services, including telephone services, such as fixed telephone, VoIP, mobile phone, PHS and other voice calls. According to its characteristics, communication is mainly divided into family communication between internal members, family and the outside world of communication.
(2) the family entertainment and information services home entertainment is the telecom operator's expansion in the area of traditional communications. With IT vendors, appliance manufacturers, as well as radio and TV content providers with home entertainment further Telecom information delivery capabilities. Information business mainly meet family members on the domestic and external demand, and obtained through a variety of convenience for business and personal gain.
(3) Home Office with remote access to corporate networks and home office environments through the arrangement of fax machines, network printers and other equipment, using teleconferencing telephone immediately Coordination Office involved in the enterprise.
(4) the smart home service realization of intelligent home has far exceeded the scope of the telecommunications field, currently the biggest difficulties are not technical factors, but require different industry manufacturers coherence, concerted efforts to accelerate the development process.
From the application point of view home gateway should have two basic functions: connect all external public networks and family as a bridge between the internal network; enable users in the family can get all kinds of family services platform. Logically home gateway should include three functions: access features, business and administrative functions. From function can be seen in home gateway basic requirements: access on must have the Wan side of the interface and the LAN-side interfaces; on the business function must have a voice, data, and other business support capacity and application scalability; management functions must provide end-to-end security guarantee, provide QoS based on business level as well as remote management. Therefore, you can set the home gateway as several functional modules, access function module mainly for home networking and telecom network connection; networking module mainly for homeDivision of internal users the connection between the terminal equipment; transfer function module mainly for home networking equipment and telecommunications networks IP packet transmission; core functional modules, including the address of the function, QoS capabilities, security features, remote management capabilities, local management capabilities, including the address function main realization residential gateway to obtain its own IP address, as well as support for families to obtain an IP address inside the Terminal, the QoS feature is intended to achieve more business flow processing and forwarding of the classification, main security features to prevent the external network to access the home network and the internal network of illegal access, remote management, mainly for operators on home gateway for remote management and control, such as the Secure Hypertext Transfer Protocol (HTTP) method TR069 network management technology, local management main home gateway log on locally; manage and control business function modules and public telecommunication network business implementation-dependent. Business, its features are associated with specific business.
3. home gateway technology
Home gateway technology mainly access technology, QoS policies, security, management, and module integration and price/performance ratio. 1. the home gateway access technology
Home Gateway must support both WAN and LAN access. Current home gateway uplink unified interface and specification standards are under development, but also need to determine a lot of open optional technology. For the purposes of the access technology, xDSL and fibre technology is preferred, and future trends in home network to enable wuxianhua based on wireless LAN Wi-Fi or Bluetooth technology should also be widely used. The user can select a home wireless network with wired access this traditional model. In addition, access technology also need to consider is and 3 g network as well as the combination of the post and 3 g network. Current European research on some carriers are integrated into the home network UMTS network, as an extension of the 3 g network. Each home gateway is similar to a simplified small micro-cell. Through a dedicated access channel 3 g network (EVDO, WCDMA or HSDPA), to provide any type of cellular services, such as voice, Internet access, downloading, IPTV, etc. Through wireless access to the network, overcome TD-SCDMA 2GHz frequency of fading, the residential gateway as a small "base station". At the same time, due to interference environment confined to relatively small areas, the use of HSDPA and EVDO technology can achieve several Mbit/s transfer rate. The benefits of doing so on the one hand, you can do to overcome TD-SCDMA walking mobile fading, networking of complex issues; on the other hand mobile communication terminal does not need to dual-mode terminal can also use the indoor and outdoor 3 g wireless network. At the same time, the home gateway also requires integration within a variety of network connectivity technologies such as WLAN, Ethernet and UWB, Wi-Fi and Bluetooth, and so on.
2. home gateway QoS policy, management and security
Home gateway is an advanced integrated gateway and to implement integrated collaboration home network, a necessary requirement for a uniform set of QoS policy. The individual elements of the home network, including gateway, family terminal devices, network nodes, while supporting such a set of hierarchical QoS structure. From the horizontal level, in order to work together, within and outside the network need to provide a mapping of QoSWAN/LAN; from a vertical perspective, access network and upper-layer protocols need QoS interface and collaboration. At the same time, due to the different business needs after a home gateway, how complex networking mode, distinguish between different business flow, on different priority business streams appropriate scheduling on QoS offers very high requirements. Home gateway as part of the operator's network, you must have the remote control, remote monitoring, remote setting, etc. Home network management including the gateway's own management, gateway connection device management and zero-touch service of plug. Home Gateway management want users to participate in the less the better. Current remote management protocol primarily TR069 and simple network management protocol (SNMP), management systems based on TR069 will gradually become mainstream. At the same time, as a family unit connection broadband network, residential gateway to protect the security of your home network, so the heavy responsibility, the gateway must possess anti-hacking, intrusion prevention capabilities. Home gateway security primarily from three aspects to consider: device security, personal information management and information control filtering.
3. home gateway module integration and price/performance
Applied to the different occasions of home gateway represents the different types of products to meet specific needs, such as cable modems, set-top box, etc. combined with broadband modem to provide some of the specialized services of special family devices. Home gateway should integrate different types of applications, but because of external access network of the different characteristics, different service providers of different business models, as well as issues related to business, residential gateway unified solution cannot be reached within a short period of time. Telecom carrier development home gateway the biggest problem is how to integrate the modules to meet the needs of different users. Home gateway, but how on-demand, adapt to business development and rich demand also challenges the carriers existing operational mode. Therefore, the primary domestic business development presupposes resolve home gateway personalized questions, how to minimize the module combinations to meet the needs of most users. In addition, the residential gateway is facing the most significant issue is the demand and the balance between price, operators want the device to provide as many features to facilitate business and hoped that the lower the prices for the better, but the manufacturer's price far exceeded the expectations of the operators. But there is reason to believe that as a gateway to family and family network-related standards, individual manufacturers for product-related functionality to a common understanding, to produce cost-effective and feature-rich home gateway, in promoting and training of operators, the home network will quickly become a telecom business revenue in part to open the win-win situation.
IV.Home Gateway prospect
With the rise of home networking, home gateway's research work is in full swing. As has been the lack of uniform standards, appropriate product performance, restricted the home gateway for further development. Therefore need to refine and modify home gateway standard, through the industry chain are in different sectors of manufacturers promote, home gateway mature applications will be just around the corner.
The rise of the family network, its core is a residential gateway. Development of home gateway helps operators mining access portal value, creating comprehensive competitive advantage. The entire Telecom business operational value chain, operators should be from the original simple access to integrated information services. Next generation networks and convergence of the three networks is the trend, home gateways and carriers provide service, provides the integration will bring home more comfortable, efficient, convenient and safe, thus forming a complete set of family information service system. Home gateway, already with faint show new Regal posture.
Monday, January 30, 2012
【 Weak current College 】 decoration decorated home flea
Home flea is relative to the home lighting power 220 volt strong electric, the voltage in the 36-volt electrical safety. With the development of scientific and technological level, the traditional concept of home power fundamental changes also occurred, intelligent, entertainment, network, the security of the new concept gradually implanted in people's thinking. For this home flea power similar to project power also points the following categories:
1. communication network – in addition to telephone and broadband network, the home has (no) line LAN building, the AP AP, home appliance lighting intelligent control point of the settings for your fashion home convenience.
2. home entertainment — in addition to cable TV, DVD, AV entertainment, network TV, satellite TV, high definition TV, pay TV, you'll build new (no) line AV, VGA, HDMI, can give you the entertainment.
3. Security and remote control-infrared intelligence alarm system, intelligent lock, remote monitoring, and other settings as you unlock the extra worries.
4. home intelligent-SMART home design make you foot doesn't go out to work to shopping to the doctor's wish come true.
Sunday, January 29, 2012
【 Weak current College 】 cabling and smart home
Smart home wiring needed some smart home wiring should be said that a small cabling system. It can serve as a perfect intelligent community part of the comprehensive wiring system, or you can completely separate as a set of comprehensive wiring system. Smart home wiring system function, for it is from the intelligent home system is the basis of the transmission channel. At present, domestic and foreign manufacturers of cabling for smart home market with solutions and products. There are also some specialized in the production of the smart home wiring box manufacturers to enter the market.
Smart home wiring to reference design cabling standards, but its structure is relatively simple. Smart home wiring main reference standard for home cabling standard (TIA/EIA570-A). TIA/EIA570-A proposed requirements are primarily to provide a new generation of domestic telecommunications cabling to present and future of telecommunications services. Standard key for wiring a new level, and to establish a distribution medium basic norms and standards, the main application support voice, data, images, video, multimedia, home automation systems, environmental management, security, audio, TV, probes, alert and radio services. Standard key planning for new construction, the new device, a residential and buildings, etc.
Current applications more is to implement the four functional modules, including modules for high-speed data networks, telephone voice system module, cable TV network module, sound module. Smart home wiring system has the advantage of the service for the family, the ability to centrally manage the various features of family services; support for video applications, voice, data and monitor signal transmission; high-bandwidth, high-rate; flexibility and high reliability, compatibility and openness; easy to adapt to network management; present and future development; neat appearance. It can bring greater benefits, including increased domestic competitiveness; small investment, quick; residential district in the early installation costs; intelligent management and reduce operating costs, more comfortable and more modern life.
Smart home wiring products can be described as intelligent home in the most basic products, and many other smart home systems are based on the intelligent home wiring system to complete the transmission and distribution cable management, including broadband access system, family communication systems, home LAN, home security systems, home entertainment systems. Therefore a popular saying "start from wiring intelligent home" was very insightful. As end users may not care about wiring product production specification, transmission technology parameters, but it is important to understand the home wiring material types and materials match the method. OK, now we have the basic elements of the home wiring begins to get to know some of these products.
1, twisted pair (Twisted-Pair). Twisted-pair cable is now the most common transfer media, which consists of two mutually insulated copper wire, typical diameter of 1 mm. Two line splicing together in order to prevent its electromagnetic induction in the adjacent line of interference in the signal. Existing twisted-pair cable in General consists of 4 twisted pairs, specific to white Orange/Orange, white/blue, white and Green/Green, white, Brown/Brown. Cabling construction way home in strong electric wire dark reason lay hidden in the wall project. Due to network a wide variety of data, voice, audio and video cable types are more and more thin, therefore, we should pay special attention to the need for threading, and to timely quality identity to avoid termination confused.
2 wiring construction must be professional. Construction of intelligent home system involves weak integration expertise, at present, the wiring system quality accident occurred at the end of 90 per cent of the connection. Therefore, be sure to call the professional company construction, avoid leaving quality implications.
3 cable products focus on quality. Cable quality direct impact home wiring system. Cable long buried in the wall, not arbitrarily change, poor-quality products in the utility will gradually expose problems, causing the system may not function properly. If secondary wiring, the waste of resources.
Saturday, January 28, 2012
【 Weak current College 】 Villa design "eight livable index"
If you live in Villa because space wall of noise effects, space and the space between each other, the transmission of sound to hear very clearly; if this is your home for the elderly and children, and public spaces with their room everywhere full of obstacles and corners; if you want to enjoy the kitchen of Super audiovisual and entertainment network, and device and circuit control cable does not satisfy the needs of your fashion ... Then your villa decoration and luxury, but also those who never and comfortable. What kind of space design is suitable for residential villa design? from city planning to community environment to House living, interior space design is the impact on the living comfort of the Villa.
Livable Villa what features interior design?
The "humanization of care," to design the core, according to the space character and the villa owners of individual needs, lifestyle targeted innovation design.
By owners of deep-seated needs of mining, for owners to provide Visual affective, behavioral, environmental security and space, life style, the design of the eight aspects of care.
A, safety and security of
From the security and protection, water heating gas and barrier-free design, and other aspects of security design, life does not have to worry about.
1. detached villa is located in the quiet, I often worry about security issues?
Smart home systems, the security system to ensure the safety of the Villa and the owner, the owner was not at home when you can automatically start the fire alarm, combustible gas leak alerts and alarms, and eliminate the worries of the master.
2. my family's kitchen is open, the children often near the kitchen utensils, how to ensure safety.
Kitchen cupboard door safety open method:
Credit card-style door: inside the blooming of sharp edged tool. Usually the door is locked, open door card on the left drawer cabinets, you need to open the Cabinet, the card gently to a brush.
No handle door magnet adsorption principle applied to showcase appearance retention perfect straight line, avoid the handle might give children bring rubs.
Second, environmental protection, hierarchical integrity
Emphasizes environmental protection scope and depth, realized on the senses, indoor environment, health and environmental protection.
1. my wife and I have often invited some friends to come and visit, enjoy barbecue courtyard, garbage should do?
The courtyard is a small community, in a social gathering, the garden of swill should have the specialized treatment, BBQ area and garden corner set up reception of boxes and concealed the garbage can, is the realization of the living environment of a beautiful and healthy.
2. basement ventilation is not good, I worry about some wall paint cause air pollution, harmful to health.
Water-based coatings and environmental PuTTY are environmental performance better wall processing materials, or use the wallpaper and diatomaceous earth materials.
Third, the individuality demand satisfaction
According to family members of a particular lifestyle and individual tastes, space, Visual, functional and emotional needs of the design.
1. I have a second layer of Villa sizable balcony, balconies to take full advantage of it?
Terrace and garden in public space play different roles, courtyard, balcony should be dynamic and static campus landscape planning. The balcony is a continuation of the indoor lifestyle, if you like reading, you can set the balcony designed to your study room or reception, if you like, you can set the balcony into your garden in the air ... According to the preferences of the use of the advantages of balconies quiet xianqu meets your individual needs.
2. I really like reading, can in villas kitchen established a bookcase?
The open kitchen of the large space of the bookcase has become a possibility, you can customize the size, the bookcase in bookcase on some of my favorite book, enjoy a delicious afternoon tea while reading an own fond of books; Super disc enthusiasts can put the disc in the bookcase, enjoys a quiet, self reading experience.
Fourth, the Visual enjoyment of
Villa of Visual design mainly reflected in the indoor gardening and Landscape Association, the light changes, plastic art of harmonious and overall style coordination, color contrast and accessories of the mechanism of effect five areas. Is the master for Visual comfort.
1. I like the feeling of duplicating, how the introduction of green vegetation Villa kitchen?
As an important meeting place, Villa kitchen must reflect the owner of aesthetic taste, whether it is from an aesthetic point of view, or in order to purify the air in the kitchen planted into plants green is good choice, duplicating plant not only ease the nerves, also have good decoration effect. You can introduce a large tub of plants, but also can be used as a panache, kitchen space green small pot.
2. audio-visual room style, color and how design is the most comfortable?
If an audio-visual room in the basement, the color should not be excessive stimulation, elegant and clean colors can give people relaxing feel, to alleviate fatigue also have benefits of vision. Overall, audio-visual room and other space-like, it should be noted that the overall style of uniform and owner's preferences.
5. emotional care degree
Space design for the master degree of emotional needs met, can be mild, inclusive host's emotional, family members of Exchange and communication more harmonious. I just bought a new House, I want to live with my parents to, in their decoration bathroom is what details to consider?
In the old renovated bathroom, we should consider the following issues:
Corner treatment in tact.
A variety of devices to be relatively low, reduce the old man range of movement.
The ground of non-slip handling, more safety handle。
6. Rui life achievement degree
The new lifestyle of development and implementation.
My wife and I always invite your friends to audio-visual room guest, but I think the Club content single, how to solve?
In addition to the audiovisual room, set about tasting table, shower, gymnasium, actresses to cutting-edge lifestyle. In audio-visual room next to design a cigar-smoking for the host and hostess tasting chat can be in separate Spa room, enjoy a massage, aromatherapy and beauty.
7. conduct space features convenient degree
Reflect external traffic and indoor garden and indoor space traffic lines of patency, order is coordinating organized, convenient and user-friendly.
1. the night to urinate easy, bedroom lighting should be how to layout?
The lighting is very important in my bedroom, you should partition lighting. In the bedroom accommodation section to set the primary light relative bright, bed room, not set main lights, available through the ceiling, bed side through the ceiling area lighting, wall lights and table lamps, floor lamps, and the demand by convenient angle lamp nearby gets soft warm light source, lighting does not affect other people rest, Villa bedroom design requirements more circumspect.
8. technology energy-saving and intelligent
Interior equipment and construction technology of scientific and technological content and energy level. Mainly reflected in the intelligent home system.
Villa heating device should have a more professional, user-friendly features?
Floor heating is the preferred Villa heating, especially with soft circuit design of the heating, even in the bathroom and the windowsill, warm and pleasant. The Villa also should pay more attention to the safety and health to warm.
Friday, January 27, 2012
【 Weak current College 】 decoration on domestic intelligence which comprehensive wiring suggestions
With the recent residential broadband network for rapid development and popularization, modern family of telephone lines, TV cables, network cables, audio cables, alarm signal lines, lines more and more, the complicated, therefore become urgent family wiring needs. Now home cabling system — household light current total management of bins are gradually accepted by consumers. However, how can we build a suitable for their own smart home? according to experts, the family spirit "intelligent construction should be skills-oriented, right ahead" principle, according to their needs and spending power, choose different solutions:
1) Foundation: in the main hall, room telephone, network, cable TV and video export.
2) extended type: in a room all rooms installed telephone, Internet outlet, in the main hall, room installation cable TV and video export, domestic lighting, automatic control, and security interface layout magnetometer, gas leaks, smoke alarm, microwave infrared detector alarms, Visual/non-Visual interphone, etc.
3) luxury: indoor all needs and possible location to install telephone, network, cable TV and video export, domestic lighting, automatic control and security interface layout magnetometer, gas leaks, smoke alarm, microwave infrared detector alarms, Visual/non-Visual interphone, network monitoring, remote control, and other home appliances.
If the budget is not comfortable, you can install a standard "smart home line box", and planning, laying a good enough lines, to form a basis for the "intelligent home wiring system", so that both can immediately apply in the future, you can easily replace, configure more powerful intelligent line box.
Power cabling project example:
Sunny, a residential area a 180-square penthouse structure housing.
ELV-point design:
Cable TV: living room, kewo, children's room, master bedroom, dining room and main bathroom. Satellite TV: living room and master bedroom (separate wiring, other rooms can be shared via AV distribution satellite programs). AV system: living room, kewo, children's room, master bedroom, dining room and main bathroom. Phone: living room, den, kewo, children's room, master bedroom, dining room, kitchen, main bathroom and a guest toilet. Broadband: living room (two offices), kewo, study room, children's room, master bedroom, kitchen, main bathroom. Background music: master, kewo, children's room, dining room, kitchen, main bathroom and a guest toilet (separate for each room you can control the volume size).
Magnetic window: balcony 3, magnetometer: entrance 1, gas leaks: 1, smoke alarm: 3, infrared alarm probe: living room, den, kewo, children's room, master bedroom and 5, screen curtain infrared alarm probe: balcony 1, emergency buttons: four.
Visual/non-Visual intercom: Visual 2, a non-Visual (upstairs); home telephone PBX 2 into 1 to 8 or 8 out of 1 (optional); alarm: 1.
Total ELV point: 57; wiring length: 900 metres (all dark line); construction period: 7 days.
Debugging results: all rooms can watch cable TV, satellite programs shared AV and; user applications, ADSL, ETHERNET or ISDN line each room can be used and shared 128K ~ 10M speed can achieve telephone switching features; broadband high-speed surfing the Internet point is available, and may pass information home internal networking and game, and the future of intelligent information appliances part line was reserved; the line to be extremely flexible, you can separate management and settings, with strong scalable space; each room sharing music, and can be individually adjust the volume; home alarm, security protection system is working properly; lighting control switch flexibly, guaranteeing the safety and comfort.
Note: the system enhancements, such as
1. light dimming control;
2. the scene control and scheduling of individual design;
3. household equipment control;
4. household equipment of remote control (telephone or Internet).
For already decorated House: you can use wireless alarm, wireless LAN, wireless audio system and wireless video/non-Visual intercom doorbell, possible price is higher, but not much difference.
Thursday, January 26, 2012
【 Weak current College 】 intelligent housing and the relationship between household wiring
Intelligent residential automation, Chinese Academy of Sciences (SmartHome) embodies the realm of human comfort and high-profile, its greatest features is comfortable and ubiquitous information flow, thus also called information family iHOME. World countries are racing to develop. Smart House is built in to the computer (computer), communication (communication), and consumer electronics (consumption) and content (content) on the basis of 4C, top 3 C integration of information products will become a network of terminals and 4th C carrier, allowing a true Internet economy.
I. characteristics of smart residential
Constitute the basic conditions for intelligent House has the following three points:
(1) has the equivalent of the family residence neural network. The family network is a family bus system (HBS) and other information transmission device, it can make the device between the organic and anyone anywhere can freely select all information within and outside the family, if the previous home of electrical wiring and gas piping, etc. to the blood vessels, so now the family dwelling is the equivalent of the bus of the nervous system.
(2) to this network offers a variety of services; here is used to support the activities of the family of information services, and residential equipment control, family activities can be divided into domestic work, management, cultural activities and communication four categories.
Domestic (housekeeping) – refers to the household equipment, domestic equipment and security equipment automatic control, energy management and display, etc.; belonging to the consumer electronics (consumption).
Management (management) — including family shopping and financial management, transport, domestic work and medical health management; wider is to e-commerce, e-education, electronic entertainment as the representative of the content (content).
Cultural life (cultare) — including the use of computer aided teaching and learning at home, personal and family entertainment and creative activities, etc.; wider is to e-commerce, e-education, electronic entertainment as the representative of the content (content).
Communication (communication) — including the use of public communications networks and two-way CATV and external communication as well as consulting services and Community administrative services.
(3) and area community connected to the external world. Domestic intelligence system should include installation in the family of smart sensors and Executive devices, home wiring system and intelligent controller for this family of three basic parts. Home intelligent controller is a family of intelligent systems Center, is also intelligent network intelligent node.
Intelligent housing through family network (or family bus) within the family, including computers, televisions, stereos, phones, video LD, or DVD, and other information equipment and residential equipment integration, together into a network and is connected to the external environment and housing, in particular can be connected to the Internet, providing jobs, learning, entertainment and other services, the creation of multifunctional information of living space, constitute a perfect network of families.
Intelligent housing including indoor different locations more phone information outlets, you can communicate with the outside world; a PC socket, connect the LAN running, enabling to work from home, Internet browsing, Internet shopping, mail, etc; CCTV interface, both for security monitoring, families are also available through the interactive TV system with video on demand, and other entertainment activities. So as to achieve scholar does not scan, the ideal of the world. In addition, the indoor temperature and lighting control system according to the family environment changes automatically adjust the room temperature and lighting. High-grade system also automatically close the window when it rains; sunlight when the curtain whereabouts automatically; home no one when heating is automatically lowered; intelligent features are obvious.
The intelligent House emphasized people's initiative, attention to people and the coordination of living system, a number of ways to facilitate the residents living environment, and comprehensively improve the quality of life. This is it, and the difference between a home automation system.
Second, family intelligent bus protocol
In the smart home, except for information appliance for real-time control, problems are more prominent in the family of information appliances device communication, as well as the family and the outside world of communication problems, which require a more suitable for intelligent home and intelligent family controlled bus (HomeBus). In domestic intelligence system bus protocol is its essence, but because of the different systems of protocol incompatibility between, on the home automation market. At present, the main bus protocols are:
(1) LonWorks Protocol, it is not supported by fieldbus network topology, a single form of restriction, you can use any form of network topology. Network operating system structures you can use the master-slave, peer-and now the client/server mode, it's communication media are not restricted, the available power line and cable twisted pair, radio frequency, infrared, etc., and can be mixed within the same network. The current global established LonWorks node has exceeded 50 000.
(2) CEBuS-EIA consumer electronic bus protocol, is Europe and the home automation electronics industry recommended standards.
(3) BACnet-building automation network communication protocol. It is a completely open building automation network, building automatic control device features and information data representation, 5 norm LAN protocols and how they communicate using protocols such as part of the composition.
(4) BATIBus, building heating, air conditioning, lighting and access control systems communicate with the fieldbus.
(5) SmartHOuseLP smart housing agreement.
(6) X-10 Protocol. It is the leading United States home automation system. Born in 1978, has a history of the most simple, direct use of residential power line as the control bus, through the power line to the controller and the functional interface is connected to and implement the program control, do not have to pass through the hole punch, and more conducive to changes in the structure and space, users can install it yourself, the price is relatively cheap.
(7) power line media development and power line modem integrated circuits so that users can enter through the power line, Internet network from simple data transfer to join the network.
3. home network wiring system
Home network cabling requirements solving wiring easily and achieve plug two basic questions. The current development of the manufacturers of home network is divided into two camps: one is to Microsoft, AMD, Lucent HomeRun network led by the Alliance, its technology is the banner of xDSL this flag; the other is from 3Com, Cisco, and other components of the Epigram Alliance, which provides by the television networks to transfer the images, sounds, data, the overall solution.
Intelligent routing application has the following 3 types:
Category 1-CommandControlandCommunicationsforBuildings CCCB, is the control system wiring for complete household survival environment control, its applications such as fire alarms, CCTV, access control, air-conditioning automatic control, lighting control, water/electricity/gas three table automatically CC, which provides regular, accurate, effective, convenient automation environment. This type of wiring usually consists of twisted pair and coaxial cables together, topology can be a star, bus-or daisy chain of one or more forms of hybrid.
First ICT — InformationandCommunicationsTechnology, is information system wiring, provides information service platform for information management, and their use as a phone, fax, computer networking, Internet, e-mail, video conferencing, Home Office (HomeOffice), as well as all of the phone/computer network attach more and more services, this requires timely and convenient service.
Category 3-HomeEntertainmentandMultimedia, HE is home entertainment and multimedia wiring, its applications such as cable TV, satellite TV, home theater, interactive video on demand, and cable TV networks can provide all the features. This type of application of the main transmission media in General is coaxial cable, using the bus configuration. But there are also some application using computer network as a transport media, users at home on a TV set-top box with installation, you can complete the signal reception and conversion.
Smart residential wiring system characteristics but also in its transmission diversity, different transmission media can find their applications, including coax, twisted pair, fiber optic, cable and infrared remote control, radio frequency, power line carrier three common wireless signal transmission mode. Wired has a high security, large capacity, rates high, and the wireless remote-control mode is best suited for families.
IV. household wiring standards
1 intelligent residential cabling systems have ANSI/TIA/EIA570A home telecommunications cable standard (ResidentialTelecommunicationsCablingStandard), it provides household wiring cable includes 4 on 3 m or 5 75 Ω coaxial cable UTP, and indoor 2 core multi-molds optical fiber, the line from the socket to the wiring box must not exceed 90 meters, the length must not exceed the channel 100 meters, terminating use of 8 bit plug seat. Home wiring of the heart is to install box, video, voice, and data templates, the Setup box allocation and management of the various rooms, then the transmission medium for the entire home provides automation and Visual, home, Internet access, Home Office, the installation box while fixed various distribution frame and panels, installed within the embedded wall cabinet.
2 home wiring level
Rating system for the helped to select suitable for every home unit different services of wiring infrastructure. Table 1 and table 2 lists the optional home wiring infrastructure. Main meet home automation, security cabling requirements.
Grade a telecommunications services provided to meet the minimum requirements of the general wiring system, the class can provide telephone, CATV, and data services. Grade a is mainly made of twisted pair and use the star topology method to connect, grade a wiring the minimum requirement for a four to unshielded twisted pair (UTP), and must meet or exceed ANSI/TIA/EIA-568A provides three types of cable transmission requirements: as well as a 75, and must meet or exceed the requirements of SCTEIPS-SP-001. Recommends installing unshielded twisted pair (UTP) easy upgrade to level II.
Level II provides advanced to meet Foundation, and the multimedia telecommunications services of general wiring system, this level of support for current and ongoing development of telecommunications services. Level II wiring for minimum requirements for one or two of the four pairs of unshielded twisted pair (UTP), and must meet or exceed ANSI/TIA/EIA-568-A five types of cable transmission requirements, as well as one or two 75 Ω coaxial cable (Coaxial), and must meet or exceed the requirements of SCTEZPS-SP-001. Optional fiber optic cable, and must meet or exceed ANSI/ICEAS-87-640 of transmission requirements.
3General household wiring requirements are defined by this second level to set the programmes, and in every home set a boundary point (demarcationpoint) or a secondary isolation socket (Auxiliary&discountoutlet) to connect to a terminal device.
Every family must install a wiring enclosures (DD), wiring box is a cross-connection of the distribution frame, all the main terminal, jumper cables, sockets and equipment wiring, etc. The main distribution frame provides users increase, alter or change the services, and provides the connection port to external service providers with different systems and applications. Distribution frame must be installed in a suitable for installation and maintenance, and provides a protection device will introduce the building wiring. All termination if you want to connect, you must install the grounding and the introduction of building equipment, and in line with the appropriate standards and specifications.
5. home wiring products
1) siemon company has launched a smart HOMEsys residential wiring system, it includes home wiring instruction Center CTCommandCenter), MAX series Designer panels, line socket, cable and installation of the frame. In addition there are also mini MINIsys public environment wiring system.
Home wiring instruction Center CT function is to connect family communication, entertainment and security provides efficient passive wiring Center. Distribution frame and installation framework is very easy to install in the House, to terminating communication cables providing convenience methods. CT instruction Center can have 8 or 12 of the second kind of configuration, each port can be installed three standard CT module, support for up to 72 including voice, data, images, various signals. Each instruction Center also has a S110 distribution frame base, available to terminating access indoor voice or data signal. MAX series Designer panel is designed for home wiring system design of the product, with MAX series installation frame and MAX modules, providing users with family communication, entertainment and security end user interface.
2) NORDX/CDT company has launched a smart home solutions RUN (ResidentialUniversalNetwork), it consists of a series of easy installation of modular components, core is a modular wiring rack, is home to all the interconnection of telecommunication signals, simplified jumper is convenient to tenants to change the location of the line. Voice and digital signal transmission through category 5 twisted-pair cable, the cable TV signal to the individual room allocation. 4-hole information outlets of typical application is 1 coaxial module used to connect to the TV, 2 RJ-45 twisted pair modules connect phone and PC, plus 1 hole is to be left for future expansion. Modular distribution center configuration as shown in table 3.
Have a home wiring system, not only can enjoy the convenience of the information age and the benefits to families safer, farewell winding phone line, at look at the things you want to see, unfettered access to the Internet, set up a Home Office (SOHO), can have a future-oriented families.
3) ORTRONICS has launched the "intelligent home — INHOUSE" wiring system, modular design, can be easily added according to user needs. The programme uses custom installation box to a wall panel star distribution of household-multimedia network systems, and support for home audio and video entertainment systems, home automation system, INTERNET access, Home Office.
MOD 4) United States — TAP company launched home wiring system RCS (ResidentialCablingSystem), RCS is realization of the "central control, distributed plug". Through a channel to a variety of devices from every room, to select a device to use it, simply adjust the frequency.
There are 5) IBM HomeDirector that provides 16 video channels, 4 PC LAN, 4 telephone lines and four remote control camera. It uses the category 5 twisted-pair, all twisted pair ultimately connected to the ConnectionCenter cartridge box including cable TV and CCTV use coaxial cable module, 10Base-T Ethernet and telephone and ISDN connections of the lamp. The second box called HomenetworkController, its control system operation, such as infrared wireless remote control enables the user to set any housing a TV channel, etc.
6) Germany KRONE's BROADWAY star structure home wiring system.
Wednesday, January 25, 2012
【 Weak current College 】 home intelligent management
Home intelligent management refers to the owner's home in temperature/humidity, electrical appliances, lighting, security, external communication, such as centralized intelligence manipulation, making the entire residential operating optimally. It is a residential property management is an indispensable part, but also the future residential smart development trends. We use in every household settings "control box" approach, to achieve the owners family of intelligent management.
1 information acquisition
Collection owners home run of the various parameters, including three table data, the room temperature and humidity, etc. These data can be in its own display, also can upload to wuyeguanlizhongxin statistics and billing.
2 video intercom
Comes with intercom feature, owners can it and visitors intercom, observation of visitors, open danyuanmen. Video intercom door machine equipped with an IC card interface, this floor tenants to enter the time using IC card issued on the basis of the community.
3 household appliances start management
The owners home air conditioner and other major electrical equipment control.
Household appliances control as follows: the owner of the phone by dual audio or cell phone to dial specific telephone numbers, if home answering machine, centralized control and automatic calls to the voice information to owners, the owners at the voice prompt with the appropriate action, remote start home air conditioning, electric appliance, the owners home before beginning work to provide a comfortable environment
4 information service
Owners through centralized control box can understand their family functioning of various parameters, such as room temperature, humidity, three-meter readings, the State accused of electrical appliances and so on, while the network of various simple query submission fee. Through centralized control box with lC card interface for costs of settlement. The property management Department is available through the community network and control box issue fee notification and other relevant property management, notification, etc.
5 to apply for community service
Owners in need of repair, removal, corruption and other community services, by centralizing control box provides direct voice functionality gives you direct contact with community service centers. Specific actions that the owners as long as you pick up the centralized control of machine-Xin barrel and press communities services press, owner and community service officers to establish direct contact with owners of voice their demands. And community service center of the station will automatically display the requested service owners of the building and room number and record.
6 anti intrusion alarm
Connection door contact switch, dual technology probes, anti intrusion detector, if at the time of the invasion alarm information in a timely manner to the property management Department and community security sector. Centralized control box with emergency call function, there is an emergency situation occurs, the owners of pressing the emergency call button notification property and security departments to take emergency measures.
7 friendly man-machine interface
Centralized control box intercom Panel except for the show visit may also use outside the image to appear, and subfolders to Chinese characters to interact with users and with a simple voice prompts.
8 rating password operation
Centralized control of the operation of a three-level password control, different levels of permissions.
9 communication centralized control box
Centralized control box communications using direct connect floor cabling and then entered the community communication backbone of its communication protocol using standard TCPllP Protocol, this way ensuring centralized control box of the open, high speed communication and information, but also guarantee the functionality of the centralized control box.
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