In the past two years, smart homes have become like a "fame overnight", ushered in a hot smart home trend. Therefore, there are only a few smart home integrated wiring projects that need to be constructed every day. So what do we need to pay attention to when designing the smart home weak wiring design? Beijing Integrated Cabling said that the following aspects are particularly important:
Smart home (home automation) is a residential platform that integrates home-related facilities with integrated wiring technology, network communication technology, security technology, automatic control technology, audio and video technology to build efficient residential facilities. The management system with family schedule affairs enhances home safety, convenience, comfort, and artistry, and realizes an environmentally friendly and energy-saving living environment.
1, LAN system
As we all know, the era of network information has had an important impact on home life. We should keep up with the pace of the times to build a small local area network for new homes to cope with the needs of family Internet access, information appliance access network, and remote network monitoring. To set up a small local area network at home, you only need to apply for an Internet broadband line, so that each room can use the computer to access the Internet at the same time.
In addition, with the trend of home appliance networking, network video and audio centers, network refrigerators, network microwave ovens, network video surveillance will appear one after another, these devices can find the nearest network interface access network.
The key to wiring: The LAN we want to build is a star topology. Any node or connection cable failure will only affect one node. The RJ45 wiring panel module with the total control function installed in the information access box, all The line access to the network outlet is behind the wiring panel. 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 the RJ45 jumper.
In order to reserve network information interfaces for online information and large-scale network information appliances, it is necessary to have at least two network interfaces in each room: one can be used as a network, and the other can be used as a telephone. This is based on network and telephone complex. Use and line backup requirements. Including RJ45 wiring panels, twisted pair cables, and RJ45 information modules, you must choose the current popular transmission media to meet your current and future needs.
2, cable TV system
In the home life, there may be not only a TV set in the living room, but also a TV set in the bedroom room. Especially now, the LCD big screen TV has greatly reduced the price, and some families also need to update the TV. The original TV can be moved to the bedroom. in. The cable TV system can transmit analog or digital TV signals and send signals to each room to watch both analog and digital TV programs.
The key to wiring: household cable TV systems should use better materials, should use dedicated two-way, high-shield, high-isolation 1000MHZ coaxial cable and panel, distributor, amplifier (required when more than 4 branches). The distributor should use high-quality devices marked with 5-1000MHz specifications.
The cable should be a 75-5 type, four-shielded physical foaming coaxial cable with good shielding performance from external interference signals to ensure the signal level of each room; the cable TV image is clear and there is no moire interference. Cable TV cabling is relatively simple. For ordinary commercial housing, we only need to install a one-four-fold distributor module in the home information box to connect the cable TV connected to the outside to the living room and each room.
3, telephone system
Although mobile phones are very popular nowadays, people are always used to chasing various preferential package of funds to change the calling card continuously, and the mobile phone may also be lost. This leads to the fact that our mobile phone number is not fixed, and the phone does not have this problem, plus its total cost ratio. The mobile phone is low, so it is still necessary to install a wired phone in the new home.
Nowadays, the domestically produced one-to-four, two-to-eight-small telephone program-controlled switches are very cheap, so it is possible to install small-scale telephone program-controlled switches at home. After installing a small telephone program-controlled switch at home, you only need to apply for an external telephone line so that each room can have a telephone. Moreover, it can communicate internally and dial the outside line. When the external power comes in, it will ring the bell until someone answers it.
If it is not your phone, you can go to another room by pressing the room number on the phone. The small telephone program-controlled switch can also be used as a pager in a villa or duplex type.
Of course, there are ordinary telephone voice module panels that only use the information access box, but this type of panel can only share the external line of the access phone. When the phone comes in, the ringtones are the same, one room calls, other rooms can be monitored, no call is kept secret. Features.
The key to wiring: telephone system and local area network system wiring are wired according to the requirements of our "reuse and double backup". The materials used in the cable and interface socket are the same, the difference is the connection method in the information access box. different. For the network twisted pair of the phone, we use the RJ11 crystal head with the blue and blue lines. If a small program-controlled switch is used, it is directly inserted into the interface of the program-controlled switch; if an ordinary one-to-one telephone module is used, the RJ11 crystal head is inserted into the telephone module.
4, home theater system
The home theater system is the first choice for modern home entertainment. The establishment of a home theater system should be the choice of many families. A home theater is a clear, colorful image that is the same or similar to a movie theater at home, full of dynamics and sound effects like the scene. Home theater equipment is divided into video and audio. The video part is a very important part of the whole system, usually by large-screen color TV or projector, in which the projector needs to be wired.
The AV amplifier is the center of audio playback and is characterized by multi-channel sound reproduction. The speaker in the home theater consists of five, six, seven and one plus one heavy speaker. The main and center speakers on the left and right sides of the front can be left unwired, and the surround speakers and rear speakers on the rear should be routed.
The key to wiring: Home theater system wiring mainly includes the projector's video cable, such as VGA, color line, DVI, HDMI and speaker cable. Since it is a top-of-the-line home theater system, these cables are not connected, that is, one line goes to the end, the connectors and wires are made by the original factory, so other wiring systems are independent, and are usually only wired in the living room or study. The length of the traces should be accurately calculated during the design to purchase a cable of the appropriate length to ensure that it is adequately pulled into place and has sufficient margin at the center of the AV equipment.
When wiring, one end of these expensive cables should be carefully wrapped in multi-layer plastic, tied with iron wire, then tied with electric tape, then pulled through the PVC casing, pulled at one end, and sent at the other end. Can not use brute force. In addition, the PVC pipe can be selected to be slightly larger so that it can be smoothly pulled, and the middle line of the pipe is not twisted.
5, AV system
AV is a collection of audio and video. Friends who have used DVD know that the output of the signal includes one channel of video, one channel of left channel, and one channel of right channel. Generally, the AV equipment is in the living room. If we need to enjoy the AV audio and video equipment in each room, we must connect the above three lines to each room through the home integrated wiring.
AV systems in the home include: DVD AV system, satellite receiver AV system, digital TV AV system. With the AV signal transmission system, you can watch videos, watch satellite TV programs, and watch digital TV programs in other rooms without having to repeatedly add multiple DVDs, satellite receivers, digital TV set-top boxes and other devices. AV signals can be transmitted to other rooms such as bedrooms, study rooms, bathrooms, kitchens, and more.
The key to wiring: AV system needs to lay three cables at the same time, the socket panel is a three-hole AV interface, the AV module panel is used in the information access box, and the AV signal of the audio-visual center is always connected and tapped out to each room. Each group of three wires from the room is respectively connected to each group of terminals behind the AV module panel, and is turned on or off through the panel's dial switch.
Because this kind of wiring line is connected, this is not allowed in the AV system in principle, but in order to share and be beautiful, in the use environment that is not very "fever grade", it can only be compromised, so the most important thing of the AV system is For the choice of wire, choose a wire that is good enough to offset some of the shortage. The video cable and the audio cable should be made of high-purity oxygen-free copper as the conductor, and the terminal block of the interface panel and the AV module should preferably be 24K gold-plated.
6, family background music system
Background music has gradually become the new favorite of modern home decoration. When people do housework at home, when people are free to squat, they must want to hear wonderful and soft background music everywhere in the hotel. It is necessary to have a wonderful background music in every corner of the house, which requires the audio cable to be connected to all corners through the home integrated wiring in various rooms, bathrooms, kitchens, balconies and the like. The ordinary family background music system adopts centralized control mode, which can directly input the sound source into the partitionable control power amplifier. The partition control power amplifier is the core of this system.
By selecting the switch of the audio input of the power amplifier, one program can be selected from the above multiple sound sources, and each room can only listen to the same program. The most important feature of this system is that the program broadcast of each room can be independently controlled by the partitionable control amplifier, the required room is played, and the unneeded room can be closed. The system is simple in structure, uncomplicated in construction, and economical and practical. And each playback speaker can be turned on and off separately.
The key to the wiring: the home background music system is also an independent wiring system, which can connect the speaker line letters of the speakers from each room to the speaker wiring panel located on the wall of the living room audio and video center, and can control the power amplifier and then connect the speakers in turn. The wiring panel forms a home background music system.
7, infrared forwarding system
The infrared forwarding system consists of an infrared receiver located in each room and an infrared emitter located in the living room. The infrared receiver receives signals from remote controllers of various audio and video devices, and turns the electrical signals into infrared emitters. The infrared transmitters convert the electrical signals into the same infrared signals as the original remote controllers, and transmit them to the audio and video equipment for control.
The wiring of the infrared forwarding system is a supporting project of the above AV system, through which the user can remotely control the audio-visual equipment such as a DVD player, a power amplifier, a satellite receiver, a digital TV set-top box, etc. in the living room, such as a bedroom or a study room. . Therefore, through the AV cabling system and the infrared forwarding system remote control device, the convenience and comfort brought by the home informationization and the multi-point sharing of the audiovisual equipment can be fully enjoyed.
The key to wiring: the wiring of the infrared forwarding system can not pass through the information access box, because the signal lines of the infrared receivers of each room can be connected together, and then connected to the infrared emitter through a set of signal lines. The main point of installation of the infrared receiver in the room is: on the same wall as the audio-visual equipment in the room.
The installation point of the infrared transmitter in the living room is: installed on the opposite wall of the audio-visual equipment in the living room. Since the entire system only supplies power to the transmitter, it should be given a power switch so that the system can be turned off when not in use.
8, monitoring and alarm system
The home residential alarm system consists of a home smart microcomputer alarm host and various front-end detectors. The front-end detector can be divided into door magnet, window magnet, gas detector, smoke detector, infrared probe, emergency button and so on.
When someone illegally invades, the corresponding detector will be triggered, and the home alarm host will immediately send the alarm signal to the cell management center or the user-specified phone, so that the security personnel can quickly alarm; meanwhile, the alarm host of the community management center will record This information is available for inspection. If the family home alarm system is connected to the alarm of the community security, it is best. If there is such a system in the community, then the family should install the residential alarm system.
The key to wiring: the home residential alarm system can be part of the integrated wiring, and the microcomputer alarm host can be installed next to the outer wall of the information access box. The integrated wiring of each front-end detector is connected to the security alarm meter reading signal acquisition module in the information access box, and then the microcomputer alarm host is connected from the module.
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