【 Weak current College 】 take you through the home wiring tips 3

VII. infrared forwarding system (optional)


Infrared transmitting system is located in the rooms of the infrared receiver and is located in the living room of the IR emitter. Infrared receiver receives from various audio and video equipment remote control signals into electrical signals to the infrared transmitter, infrared emitter will signal to the same as the original remote control infrared signals, emission control for audio-visual equipment.
Infrared transmitting system wiring is the AV system for supporting projects through which the user can wait in the bedroom or study room on the living room, Department of audiovisual equipment such as DVD player, amplifier, satellite receiver, digital set-top box remote control for comfortable. Thus, by AV distribution system and infrared remote control device to forward system, you can fully enjoy the family information and audio-visual equipment more sharing brings convenience and comfort.


Distribution points: infrared repeater system wiring can not pass information access box, because the individual rooms of the infrared receiver of the signal cable can also join together, and then through a set of signal lines received IR emitter. Room in the infrared receiver to put the point is: and the audio-visual equipment in the room on the same side of the wall; the living room of the IR emitter to install the main points are: installation in the living room of audio-visual equipment on the opposite wall. Because the entire system only gives the transmitter power supply, so you should give it an a power switch, so that you can turn off the system when not in use.

VIII. monitoring alarm system (optional)


Family residential alarm system consists of a family of intelligent microcomputer alarm host and various front-end detector. Front-end probes can be divided into door sensor, magnetic window, gas detectors, smoke detectors, infrared detectors, emergency button, etc. When it was illegal invasion will trigger corresponding detectors, alarm host will immediately alert signal transmitted to the Community Center, or user-specified phone for security personnel to quickly '; at the Community Center of alarm host will record these information is available. Family residential alarm systems to alert the community security, networking is the best but, if the community has such a system, then the family residential alarm system should be installed.


Distribution points: family residential alarm system can be a part of the comprehensive wiring, micro-computer alarm host can be installed in the external walls of information access box. Various front-end detector-line cabling meeting received information access trunk of protection alert section of meter reading signal acquisition module, then from the module access micro-computer alarm host.




9. important notes for cabling


◇ How according to their own needs to arrange their own wiring?
Modern cabling concept basic hindmost "star topology" structure, this is the last "bus topology" instead. Star topology emphasized that each line is independent, that avoid single points of failure resulting in the paralysis of the whole system. The vast majority of home cabling is using advanced star topology cabling, set to converge to the information in the access box, facilitate centralized management, and facilitate extended the jumper, this is the main contents of the home wiring. However, we cannot generalize, and that any wiring is information access box, the summary administration also has several independent wiring system is, as the above mentioned infrared forward system, home theater systems, family background music system does not need to converge to information access box, as Scott Sudoku features and needs of independent wiring.
◇ Strong electric with power to pay attention to? (strong or weak to vertical cross)
Home cabling not only cabling, there are strong electric wiring, the strong electricity include: lighting electrical and power. Strong electric on weak and could not have avoided a electromagnetic impact. Therefore, we want to know the following strong electrical and cabling of considerations:
1, strong electricity to power the alignment you want to avoid the next parallel alignment, weak current pipeline and strong electric line parallel alignment needs 50cm distance, if you do not allow this, the available special shielding wire and metal nozzle instead of PVC pipe.
2, strong electric, power outlet intervals at least 30 cm.
3, strong and weak current alignment cross, at a 90 degree angle crossing.
4, for audio-visual quality requirements more stringent AV systems and home theater wiring it is better to use a metal casing, especially the home theater.

10. Summary


This article describes family excelent arrangements which are required, which is drawn and which are optional. We are in the "meet now, right ahead" principle, in the new house renovation project in financial resources to permit the greatest possible number of select suits their needs several routing system. In addition, this article also highlights the strong power and cabling project, also attracts our attention.

【 Weak current College 】 on (security, weak) intelligent system bidding strategy

As modern enterprises Informationization construction of more and more attention, information and intelligent systems building needs more and more, the project has also done a greater and greater, from the previous one millions of items can also be described as large, and now millions or even tens of projects is also very common, and more for the project developers, integration, are involved in the intelligent construction the industry wanted to fight for this big cake, the nearest several years the author in the bidding with integrators, briefly about this experience, I hope to share with colleagues.
The first step, integrators should find some powerful good price protection supplier. Review product maturity, system solutions, if necessary, it is best to look at the vendor the practical application of existing customers. Recommendations to find some middle and high-end products, the market price is not transparent, good price protection system, so that both can guarantee that the system functions and system stability, and has a flexible price policy, different items you can apply for the supplier to a reasonable price, most high end, the most famous brand product might instead as some high-end products as flexible and, at the well-known brands of the price is relatively transparent, to manufacturers remain empty run space relatively low, so look for products to find some mature brands in the high-end, not necessarily non-find well-known brands in the high-end products more price advantages for integrators who have a greater profit space, ensure the system's best value for money.
The second step, should meet the owners and experts to Exchange written tender documents. This is successful, the most crucial step. Let vendors provide products of technical requirements and performance parameters, according to the owner's actual demand order tender documents, while firms filing good project for a favorable price and let vendors report good the item and the price protection and proposes three competing products recommended brand: first, the vendor's own brand, to find two price or functionality and vendor products have great differences of brand, for example, the price is higher than the supply of or functionality, to find a very strong brand, price than the vendor to much higher; also recommended a feature is not perfect brand, low-end products for integrators-out technology sign more priority. If looking for well-known brands, technology will give priority, but offer will more than their recommended brand, let your opponent's offer for competitors at a disadvantage, if you find a lower-end brand, technology sign may not meet the needs of the owners, make their programmes more prominent, more competitive. After finishing out of the tender documents submitted to the landlord, the landlord may find experts to modify the tender documents, which need to communicate with experts fully functional requirements of the product, verify that the final version of the well in the tender documents.

The third step, carefully prepared a set of competitive bidding program. After the issue of the official tender documents, other competitive bidding integration are looking for suppliers for programmes and offer, let vendors offer protection, fight for their best price, and ultimately business standard prices of the highest priority, so that my one bid. This is also the key to winning is a step in the integrators should more thoughts on the bid, truly have technical superiority and price advantages, full analysis of the tender documents scoring criteria and competitors and supplier relationships, estimation of the competitor's offer, quotation do targeted, their bid and will also be able to take its course. All in all is thought to allow a competitor's bid at a disadvantage, so that my bid optimization, can one child abduction by owners and experts.
In addition, a very critical part of the business key is not in this alone describes, bookstore and more interpersonal related books, there are a lot of seniors experience than me, hope to share with the older Exchange together.
Summary, integrators should be more market-leading vendors to know the major brands of price classes and product features to avoid competitors also use these methods and their competition, General tender documents will have two or three recommended brand, if integration dealers and vendors, may seek to have the advantage of the prices and options; of course it is impossible to entirely integrated supplier can and brand suppliers report, only as many know the mainstream products of the brand, the greater the chance of success. In a Word and work closely with suppliers to bid for a large proportion, sometimes also allows vendors to go and do the work of the relevant owners. Last wishes all project developers and integrators to friends in the intelligent construction industry ludicrous win more profitable and able to play their own advantages of good projects.

【 Weak current College 】 interpretation of smart home new Protocol

Trace this entire broadband device in the past, all associated with the automation. On the WiFi, before the Internet before that time, CEBus and LonWorks X10. On the smart home, those are ever popular too.

But the Internet and related technologies from the 1990s into the new millennium has become the focus of attention. Today, home automation, a whole batch of new technological and industrial innovation is attracting people's attention, especially lighting control.

Therefore, such as WiFi, automation protocol and broadband technology? the former must be low-cost (low enough to support the lighting switches and thermostats) and low-energy (you hope to replace the one you security sensor batteries?). In General, technology will increase at least 5 to 10 dollars in equipment costs.

Today's noteworthy new automation technology "two-way", means that sends and receives commands can be confirmed. For example, a key to the dimmer "open" command until the dimmer to confirm receipt of this instruction, the lights are actually open. Press to display the immediate feedback, that is, through the Green LED to indicate the outside light is open. Former unidirectional Protocol cannot display a set of devices on/tube State of the real information.

The new agreement
In the past two years, emerged in a large number of standard and private technology provider. The new agreement is not only for lighting control and automation products bring a perfect tool, but also gives us insight into the ever since the 1980s X10 inception and then not seen before.

Zigbee and Z-Wave new wireless technology, using grid technology — each port also equipped with a sink and a transmission device, in the most effective manner from one port to another port to spread across the entire device. In your home has more port, this technique will work.

Zigbee is a group for commercial/industrial control technology provider manifest, they have, Invensys, Motorola, MitsubishiandPhilips. This technology is an industry standard, IEEE802.15.4.

Zensys Z-wave is a product of the company in Copenhagen in 1999 as the home automation market, creating a RF special programmes.

At that time these two technologies are almost at the same time-to-market, was smart home Z-Wave cater to the needs of the market, so it is in this area there is a good base. Especially Z-Wave attracted most of the market, such as the famous brand Sylvania, Intermatic, and recent Leviton WqyneDalton.

Zigbee's followers were also in the commercial/industrial areas, but most important, because this technology come together at home business system of the company are: AMX, Crestron and Control4, Vantage.

The above describes the wireless technology, but don't overlook a home use AC power to transfer information back and forth the power line technology. The most formidable is the UPB (universal Powerline bus) from the PCS (power control system) production. PCS is a company in the automation area is known as a lighting control, which led the company from a X10 unknown power line technology development to have two-way communication and have a good credit rating in perfect agreement.

The development of the UPB PCS increased experience, but it is important to note that the noise from the wire. When MD manufacturers are the technology used in products of Central audio system, the wire is connected to the same UPB loud noise.

Several accepted the UPB agreements, mostly of the manufacturers of lighting control. This technology has been in late 2005, HAI Revolution (handy) (mass market in the United States on the most popular security/automation system manufacturer), beginning in its control panel support this technology, but also in the light switch, dimmer and other parts use the UPB.

Finally, Insteon, home control in the field of the new agreement introduced a RF/PLC interactive, home of wireless or wired electrical installations can communicate without the need for a variety of lines and connectors. This technique was invented by the SmartHome, this is a long-term commitment to the production and marketing of intelligent home company.

The receiver of this technology is the first brand, their production FirstAlert smoke detectors using Insteon can interconnect, and compatible with the light switch. A smoke alarm makes the Interior light quickly open, outdoor lights flashing.

This is just in the United States domestic market momentum. Echelon LonWorks based on the invention of PLC technology has been built in the United States in the field of public commercial success and to the consumers in Europe and Asia. The company has recently reduced the technology costs and productivity several new products in the hope of attracting up United States domestic market's attention. And a company Yitran, Israel by LG Electronics emplaced home control technology, hoping to break into the United States market. Finally, the most famous HomePlugConsortium Powerline broadband network scenario, exit at the end of 2005 a PLC programmes — called HomePlugCommand & Control or HPCC — designed for low interest rates and low-cost home control developed.

【 Weak current College 】 home decoration cabling surf

Many consumers buy a new House, to be rebuilding, and spring and autumn as compared to dry, so the most suitable for the decoration of the season. In addition to the primary concern of decoration, home wiring should be carefully considered, particularly for homes with more than two computers, consider your computer network and ordinary household cable arrangements related to the future is easy to use.
Perfect family network planning, easy installation, reduce costs and facilitate new business scale promotion, allowing operators have greater income. And redundancy of the family network, may increase the carrier's business promotion costs, the impact of the decoration scheme for home users, increasing the family invalid communications costs, eliminating weak home users on broadband acceptance of new business.

Home wiring is a clique of engineering. Say, because this kind of project for the network company is too small, generally prefer not to receive such a project, unless it is a project of great community integrated wiring; that is, is because General decoration engineering wire wiring, and is highly specialized and complex project. Unless it is a community in the construction process has been conducted on the wiring layout, otherwise perfect ordinary new house renovation works in the network cabling is resolved by the landlord himself.

Since the phone's interior parallels in long distance attenuation at line quality, if the House is larger, the excessive use of the indoor line, line quality will be affected, especially in the use of telephone line installation of ADSL, ADSL on line request high, the Internet quality would be greatly reduced. And because the line closed in the wall, if you encounter any problems, solve the line up is very troublesome. Therefore, advance planning is very important.

Determine the network wiring design sketches

Network cabling, first of all you should be aware of your own room environment and the use of the various rooms, where you can slot catgut, where not? at the same time to understand the needs of the family network, somewhere where you want to surf the net? to see TV? own heart.

And then, depending on the room of power distribution box, cable inlet and telephone cables, network cables into account location, determine distribution boxes and splitters. General distribution boxes do not easily moved; telephone and network line wiring box should be chosen one neither affect beauty and ease of operation, considering that you want to put on routers and switches, so you should design a large wiring box; cable TV in inlet design one can display two TV splitter box.

Now according to their own ideas to draw sketches, and even then you need to change, the performance of the map is also very clear that in the construction process will not have any effect.

Computer and telephone wiring

In the home wiring in some decoration company and water electrician is not very clear function and a variety of cabling, or also to stay in a few years ago, pure line wiring level. Them in the phone and the network cable, often with a 4-cell or 8-core wire line, so while all the rooms of the phone can call on broadband (ADSL). However, this home can only use one phone number, and the room's telephone-line, the call is not very convenient. At the same time, with the development of the network, the home has 2 ~ 3 PC is also very good, if more than one computer at the same time on the Internet that you cannot meet the cabling.

It is recommended that you use a parallel wiring, and telephone and network cable using 4-and 8-core (5 line) line, for convenience, telephone and network line put in the same root PVC tubes (in theory, the phone line and Internet line spacing should be separate wiring, in order to prevent mutual interference 10cm), considering that home telephone and network at the same time is very short, it will not cause significant interference.

In the routing scenario, if you have more than one computer to the Internet, as long as the total wire Office plus a broadband router, or switch to present a selection of many home routers, the price is around $ 200.

CATV cabling

Cable TV cabling in the home decoration also affect larger, but the majority are used in decoration into line with a second of the dispenser into two separate again after a second, this TV signal after two distributor of attenuation, the TV signal is poor, the image will not clear.

Outside line House, it is recommended that the user according to the number of the rooms, the direct use of a (a three or four) Distributor after access to the room. If the House has two routes, recommended way to directly access the living room, living room TV sharpness will be better; the other one by the distributor receives the room. In short, as the case may require specific treatment, wiring should use better quality double shielded broadband video cable.

Electrical wiring

When it comes to home network cabling, the first thought is laying of cable is standard. Network cable for layout is important, but the layout of the power line to be ignored, because the power supply too stable is to guarantee the stable operation of the computer, network, and therefore also of fundamental is the need for the user.

Construction started

In accordance with the design of the zoning plan, will all need to prepare for the purchase of wire back to categorize the ends of the wire and then affix the corresponding labels (that's you). Afterwards, we will walk in a line of wire, then you'll get some bundles of lines are simple, and follow your plan they are arranged. As regards the integrated distribution management system placed at home where, according to the actual situation to resettlement, housed in the library can also be, or hidden in the corner of the living room. Here tend to remind everyone that the wiring time inevitably on the wall and ground punch cutting groove, but for the safety of you and others, this work best in accordance with the provisions of the property sector. Note that the phone cord outlet in the bathroom must be near the toilet, or meaningless (toilet on the telephone is not to resolveI feel that when not to hurry to go out on the phone!).

Thread former be sure to check the status of wire connectivity, dressed in only to find no is in trouble. In addition it is also important to note that all connectors are the best in the final production, many special connectors before the thread can only make a header, if both do not wear out. Like computer network lines, and other professional wire connectors, it is best to ask professionals for help.

If your tile surface is, the best route to the embedded line pipe. Line pipe role not only to protect the wire, it also has convenient features change line. Therefore, the embedded line pipe in the middle of the first cannot have a right to die-bending, to solve problems, make wire bend can be easily worked out in the on-line tube. Second line pipe best plastic coil (a half-hard, translucent, formal construction commonly used) so that the line tube no connector, this thread without card line. If you must have a connector in the Middle, nor to use the size of the head, and you want to dock orientation. Then there is the line pipe during construction, do not worry for threading, but first into the lead wire, wait until the last installed electrical on again when the corresponding wires.

Upon completion of the renovation works, you can make a variety of devices. We need to prepare tools in addition to a pair of pliers to have installed gaizhui telephone Crystal head professional pliers, install network cable Crystal head professional pliers. In each room to install a telephone and is set on the switch.

【 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.

【 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.

【 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.