Smart home is an efficient, comfortable, and safe home-based platform that is compatible with construction, network communications, information appliances, network appliances, automation, and intelligence, and integrates systems, structures, services, management, and control. , convenient, energy-saving, healthy and environmentally friendly home environment. With the improvement of living standards, intelligent home decoration has appeared in the lives of a very small number of people. However, this kind of proactive intelligent design is still out of reach for many consumers. In the relatively developed urban smart home market in China, It is beginning to take shape, but in some economically underdeveloped areas, smart home decoration is still in its infancy. With the development of the economy and the improvement of people's pursuit of quality of life, smart homes will gradually enter more families and lead the fashion trend of decoration. . So, do you have a clear understanding of the key points of the wiring system during smart home decoration?
1. Local area network system
The information network era has had an important impact on home life. We We should keep up with the times and set up a small local area network for new homes to meet the needs of family members for accessing the Internet, accessing information appliances to the network, and remote network monitoring. To set up a small local area network at home, you only need to apply for a broadband Internet line, so that every room can use computers to access the Internet at the same time. In addition, with the trend of networked home appliances, network audio and video centers, network refrigerators, network microwave ovens, and network video monitoring will appear one after another. These devices can all find the nearest network interface to connect to the network.
Key points of wiring: The LAN we want to build is a star topology. If any node or connecting cable fails, it will only affect one node. The information access box is installed to play the role of overall control. RJ45 wiring panel module, all lines from the network sockets are connected to the back of the wiring panel, and the information access box should also be equipped with a small network switch, which is connected to the front interface of the wiring panel through an RJ45 jumper.
To reserve network information interfaces for the current Internet access and the large number of network information appliances that will be available in the future, we need at least two network interfaces in each room, one can be used for the network, and the other can be used for the phone. This is based on the requirements for network and telephone multiplexing and mutual line backup. Including RJ45 wiring panels, twisted pairs, and RJ45 information modules? I have to choose the currently popular Category 5e to meet current and future needs.
2. Cable TV system
In home life, there may not only be a TV set in the living room, but also a TV set in the bedroom, especially now with large LCD screens The price of TVs has dropped significantly, and some families also need to update their TVs. The original TV can be moved to the bedroom. The cable TV system can transmit analog or digital telephone signals and send the signals to every room, so that you can watch both analog and digital TV programs.
Wiring points: Home cable TV systems should use better materials and use dedicated bidirectional, highly shielded, highly isolated 1000MHZ coaxial cables and panels, distributors, and amplifiers (when there are more than 4 branches) need). The distributor should use high-quality devices marked with 5-1000MHz technical indicators.
The cable should be a 75-5 type, four-shielded physical foam coaxial cable with good shielding performance against external interference signals to ensure the signal level in each room; the cable TV image is clear and free of mesh interference. . The wiring of cable TV is relatively simple. For ordinary commercial houses, we only need to install a one-to-four distributor module in the home information box to distribute the cable TV connected from the outside to the living room and various rooms.
3. Telephone system
Although mobile phones are very popular now, people are always accustomed to chasing various preferential packages and constantly changing phone cards. The mobile phone may also be lost, which leads to the loss of our mobile phone. Regardless of the number, this problem does not exist with wired phones. In addition, its tariff is always lower than that of mobile phones, so it is still necessary to install wired phones in new homes.
Nowadays, domestically produced small one-to-four and two-to-eight small telephone program-controlled switches are very cheap, with quotations only ranging from more than 100 to more than 200 yuan, so it has become possible to install small program-controlled telephone switches at home.
After installing a small telephone program-controlled switchboard at home, you only need to apply for an external telephone line so that every room can have a telephone. It can make both internal calls and outside calls. When an outside call comes in, it will ring until someone answers. If the call is not yours, you can press the room number on the phone to transfer to another room. Small telephone program-controlled switches can also be used as pagers in villas or duplexes.
Of course, there are ordinary telephone voice module panels that only use the information access box, but this panel can only enjoy access to the outside line of the telephone. When the call comes in, the ringtone rings at the same time. Calls can be monitored by other rooms, and there is no call confidentiality function.
Key points of wiring: The telephone system and the local area network system are wired together according to our "multiplexing and double backup" requirements. The materials used for the cables and interface sockets are the same, but the difference is in the information interface. The connection methods for entering the box are different. For network twisted pairs used as telephones, we use wire pairs with color codes of blue and blue and white with RJ11 crystal heads. If a small program-controlled switch is used, plug it directly into the interface of the program-controlled switch; if an ordinary one-to-several telephone module is used, , just insert the RJ11 crystal head into the phone module.
4. Home Theater System
Home theater system is the first choice for modern home entertainment. Building a home theater system should be the choice of many families. Home theater means that you can enjoy clear and colorful images at home that are the same as or similar to those in a movie theater, full of dynamic and live sound effects. Home theater equipment is divided into two parts: video and audio. The video part is a very important part of the entire system. It is usually played by a large-screen color TV or projector, and the projector requires wiring.
AV power amplifier is the center of audio playback, and its characteristic is multi-channel sound playback. When it comes to multi-channel playback, surround sound standards are indispensable. The popular surround sound standards now include: 1. Dolby Digital surround sound (5.1 channels); 2. DTS surround sound (5.1 channels); 3. DTS-ESDiscrete surround sound (6.1 channels); 4 , THXSurroundEX surround sound (7.1 channels). ?The speakers in the home theater are composed of five, six, seven, etc. plus one heavy speaker each. The main speakers and center speakers on the left and right sides of the front do not need to be wired, but the surround speakers and rear speakers at the rear should be wired.
Wiring points: Home theater system wiring mainly includes projector video cables (such as VGA, component cable, DVI, HDMI) and speaker cables. Since it is a top-level home theater system, these cables are not connected, that is, one line goes to the end, and the connectors and lines are all made by the original factory. Therefore, other wiring systems are independent and are generally only wired in the living room or study room. When designing, it is necessary to accurately calculate the length of the trace so that you can purchase a cable of appropriate length to ensure that it is pulled into place enough and that there is enough margin at the center of the audio and video equipment.
When wiring, one end of these expensive cables should be carefully wrapped with multiple layers of plastic, tied with iron wire, then tied again with electrical tape, and then pulled through the PVC sleeve Tube, pull at one end and send at the other end, no brute force can be used. In addition, the PVC pipe can be selected to be slightly larger so that it can be pulled through smoothly and the middle line of the pipe will not be kinked.
5. AV system
AV is a collection of audio and video. Friends who have used DVDs know that the signal output includes one video channel, one left channel, and one right channel. Generally, AV equipment is in the living room. If we need to enjoy these AV audio-visual equipment playing audio and video in each room, we must connect the above three lines to each room through home integrated wiring. AV systems in the home include: DVD AV system, satellite receiver AV system, digital TV AV system. Through the AV signal transmission system, you can watch DVDs, satellite TV programs, and digital TV programs in other rooms without having to repeatedly purchase multiple DVDs, satellite receivers, digital TV set-top boxes, and other equipment. AV signals can be transmitted to bedrooms, study rooms, bathrooms, kitchens and other rooms.
Wiring points: The AV system needs to lay three cables at the same time. The socket panel is a three-hole AV interface. The information access box uses an AV module panel. The AV signal is generally connected to the audio and video center and tapped out. Each room. Each group of three wires from the room is connected to each group of binding posts behind the AV module panel, and is turned on or off through the dial switch on the panel.
Since this kind of wiring line is connected, this is not allowed in the AV system in principle. However, for the sake of enjoyment and beauty, it can only be used in environments where the requirements are not very "audiophile-level". There is a compromise, so the most important thing for an AV system is the selection of wires. We need to choose good enough wires to offset some of the shortcomings. Video cables and audio cables should use high-purity oxygen-free copper as conductors, and the terminals of the interface panel and AV module should preferably be 24K gold-plated.
6. Home background music system
Background music has gradually become the new favorite of modern home decoration. When we do housework at home, when we take a nap at will, we must imagine that it can be like in a hotel. Beautiful, soft background music is heard everywhere. To fill every corner of your home with graceful and soft background music, you need to connect audio cables to every corner through home integrated wiring in each room, bathroom, kitchen, balcony and other places.
This is the first introduction to several key points about smart home wiring. I hope it can bring reference help to everyone and understand the knowledge of smart home wiring. We can make relevant preparations during decoration!
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