【 Weak current College 】 intelligent home control system design

Summary: this article briefly introduces the intelligent home control system, travel, function, system design and product selection, engineering design examples, etc.
Keywords: family controller automatically monitoring security
L introduction
As the national economy and the improvement of science and technology, especially computer technology, communications technology, network technology, control technology, the rapid development and improve the lives of the families achieve a modern, comfortable living environment, and security. These high-tech has affected people's lives, changing the habits of life, improving people's quality of life, home intelligent is in such a situation has arisen.
2 Overview of intelligent home control system
Intelligent home control system is based on HFC, Ethernet, Profibus, public telephone network, wireless network transmission network for the physical platform, computer network technology is a technology platform, field bus for application platforms that form a complete set of family communication, family device of automatic control, family safety, and other functions of the control system.
Intelligent home control system's overall objective is through the use of computer technology, network technology, control technology and integration technology to establish a family to the community and the whole city of integrated information services and management systems to improve the residential high-tech content and the residents ' living environment.
Systems are typically determined by the system server, home controller (various modules), various router, cable modem head-end equipment CMTS, switches, transmitters, controller, wireless transceivers, various detectors, sensors, various executing agencies, printers, and other major parts.
3 intelligent home control system functionality
Intelligent home control system's main features include family communication, family device of automatic control, family security in three areas.
3.1 family communication
Family communication can use telephone lines, computer Internet, CATV line, wireless LAN, etc.
(1) telephone line
Through telephone lines to achieve a two-way transmission of voice signals and data signals.
(2) computer to the Internet
Through Internet information interactive, integrated information query, online education, healthcare, e-mail, e-shopping, etc.
(3) CATV transmission line
By CATV line for VOD and multimedia communications.
(4) wireless LAN
Through wireless transceivers, antennas, wireless terminal for bi-directional transmission of data signals.
3.2 family device automatically monitoring
Family device automatically monitoring including electric equipment of centralized, remote control, distance, off-site (via phone or Internet) monitoring, control and data acquisition.
(1) household appliances that monitor and control
In accordance with the procedure set out in advance of the requirements on the water heater, microwave oven, video and audio, and other household appliances that monitor and control.
(2) heat meters, gas meters, water meters, electricity meters of data acquisition, measurement and transmission according to the requirements of the residential property management by setting data acquisition program, through the sensor for heat meters, gas meters, water meters, electricity meters of dosage for automatic data collection, measurement, and the results will be delivered to the remote acquisition community property management system.
(3) air conditioners to monitor, regulate and control
In accordance with the procedures set in advance, according to time, temperature, humidity, and other parameters on air conditioners for monitoring, adjustment and control.
(4) lighting equipment monitoring, regulation and control in accordance with a pre-determined time procedures, on a per-room lighting equipment control on, off, and can automatically adjust the illumination of the room.
(5) curtain control
In accordance with a pre-determined time program, on the open/close the curtains.
3.3 home security
Family safety includes many fire alarm, combustible gas leak alarm, burglar alarm, emergency calls, multi zone settings, guest speaker, etc. Graded within domestic controller pre-set several alarm phone number (such as a family company phone number, mobile phone number, pager number, and residential property management Security Department phone numbers, etc.), the alarm occurs, the level of order in order to dial the phone alerts (nun can be reported in which the system alarm). At the same time, various alarm signal through control of the network to the community, and wuyeguanlizhongxin other functional modules for programmable linkage (such as combustible gas leak alarm, turn off gas pipeline linking the solenoid valve).
(1) fire prevention
By setting the kitchen thermal detectors and set in the living room, bedroom, smoke detector, monitoring each room there is no fire occurred. If there is fire home controller issued a sound and light alarm signal informing their families and community property management sector. Home controller can someone at home or at home, automatic adjustment of the temperature sensor detector and smoke detector sensitivity.
(2) non-combustible gas leak
Through the settings in the kitchen of combustible gas detector, monitor the gas pipeline, the stove has no gas leakage. If a gas leak home controller issued a sound and light alarm signal and interlocking off gas pipeline of solenoid valve, while informing their families and community property management sector.
(3) alarm
Burglar protection region into two parts, namely residential perimeter protection and flat area protection. Residential perimeter protection refers to a residential doors, Windows, door contact switch installed on the external glass Windows, door, glass break detectors installed in the vicinity; residential zone protection is the main channel, significant room to install the passive infrared detector or passive infrared/microwave detector dual technology. When there are people in charge of residential perimeter protection security alarm equipment (door contact switch, glass break detectors) fortification, residential area of the burglar alarm device protection (infrared detector or passive infrared/microwave double technology explorationSokki) removed immediately. Headed out, residential perimeter protection security alarm equipment (door contact switch, glass break detectors) and residential area of the burglar alarm device protection (passive infrared detector or passive infrared/microwave detector dual technology) fortification. When illegal intrusion, family controller issued a sound and light alarm signal and inform their families and community property management sector. In addition, the program can set alarm levels and the sensitivity of the detector.
(4) guest speaker
Residential owners through visitor intercom equipment and visitors for two-way voice or Visual call, confirm that allow the visitor into the person. Residential owners use visitor intercom equipment, building entrance door or the door lock conducting danyuanmen open and close the control.
(5) emergency
When you encounter unexpected situations (such as illness or illegal intrusion) occurs, pressing the alarm button to residential property management sector emergency alarm. Emergency signal transmission in the network have the highest priority level, because it is people in urgent cases of distress signal, the chance of false positives. 4 intelligent home control system type
4.1 system type
Intelligent home control system can be divided into the public telephone network for intelligent home control system, intelligent home control of HFC systems, Ethernet intelligent home control system, intelligent home control LonWorks systems, intelligent home control KS485 systems, wireless networks, intelligent home control system type.
Basic features, functionality, 4.2, scope of application
(1) use of public telephone networks of intelligent home control system uses the public telephone network for intelligent home control system diagram see national building standard design < intelligent home control system design and construction Atlas 03X602 page 14.
· Basic characteristics: family intelligent controller be configured with the phone line to connect the transceiver, as with telephone network information transmission network. The system not only functionally unable to fully meet the requirements, but also greatly simplifies wiring, saves wiring investment.
· System: the system by the system, server, home controller (built-in and phone line to connect the transceiver), routers, transceivers, various detectors, sensors, various executing agencies, printers, etc.
· System function: family communication, family device of automatic control, family safety precautions.
· Applications: the system applicable to the new, expanded the intelligent housing (community) project, and particularly suitable for renovation of intelligent housing (community) project, the use of existing phone lines to implement the data signal altogether NET transport.
(2) adopting HFC's intelligent home control system
Adopting HFC's smart home control system diagram see national building standard design < intelligent home control system design and construction Atlas 03X602 on page 15.
· Basic characteristics: family intelligent controller configured CableModem within, the use of CATV HFC network as a network information transmission. The system not only functionally unable to fully meet the requirements, but also greatly simplifies wiring, saves wiring investment.
HFC network used for sharing, its shared bandwidth as 36Mbps. When a large number of Internet access, Internet access speed is slower. Due to the Cable Modem equipment costs are relatively high, user network service costs.
· System: the system by the system, server, home controller (built-in Cable Modem), router, cable modem head-end equipment CMTS, cable television transmission network, various detectors, sensors, various executing agencies, printers, etc. o
· System function: family communication, family device of automatic control, family safety precautions.
· Applications: the system applicable to the new, expanded the intelligent housing (community) project, and particularly suitable for renovation of intelligent housing (community) project, only the original CATV HFC network bi-directional transformation, you can achieve data and image signal common network transmission.
(3) the introduction of Ethernet intelligent home control system
Using Ethernet intelligent home control system diagram see national building standard design < intelligent home control system design and construction Atlas 03X602 16, 17 pages.
· Basic characteristics: family intelligent controller is configured in the Ethernet card, Ethernet as the information transmission network. Ethernet while supporting household computers and intelligent home control system. The system not only functionally unable to fully meet the requirements, but also greatly simplifies wiring, saves wiring investment.
Ethernet transmission rate is high, the transfer rate is 10Mbps, 100Mbps, etc. According to the requirements of the transmission distance, by the community to the floor switch wuyeguanlizhongxin takes more than 4 to 5 class on the strand, multimode fiber optic cable or single-mode optical fiber cables, switch to the home controller adopts 5 class 4 on twisted pair cable.
· System: the system by the system, server, family controllers, routers, switches, all kinds of detectors, sensors, various executing agencies, printers, etc.
· System function: family communication, family device of automatic control, family safety precautions.
· Applications: the system applicable to the new, expanded and transformation of intelligent housing (community) project, use Ethernet for data and bi-directional transmission of image signal.
(4) the introduction of intelligent home control LonWorks system uses LonWorks smart home control system diagram see national building standard design of the intelligent home control system design and construction Atlas as 3X602 sections 21, 22, 23 pages.
· Basic characteristic: a coverage for all ISO/OSI standard seven-layer communication protocols, open LonWork bus technology, a single system you can connect up to 127 units LONWorks router, a LonWorks router can connect up to 63 stations home controller. Each family controller as LonWorkA channel of network nodes, each network node including neurons (NEURON) chip, oscillator, power supply, a media communications transceiver and monitoring device interface i/o device (circuit), storage, etc.
LonWorks direct communication distance of up to 2700m (twisted pair, 78Kbps), its communication transmission speeds up to 1.25Mbps (at this point the effective transmission distance is 130m). LonWorks router to community wuyeguanlizhongxin line length exceeds 2700m, need to install repeaters on the bus. Transmission line usually uses twisted-pair, according to needs or coaxial cable or power line.
· System: the system server, controller, router, router, switch, LonWorks, various detectors, sensors, various executing agencies, printers, etc.
· System function: family communication, family device of automatic control, family safety precautions.
· The scope of application: this system is particularly applicable to the new, expanded the intelligent housing (community) project.
(5) the introduction of intelligent home control KS485 system
Using intelligent home control KS485 system diagram see national building standard design <智能家居控制系统设计施工图集> 03X602 paragraphs 18, 19, 20 pages.
· Basic characteristics: KS485 serial interface bus master-slave network, its communication to half-duplex, with bi-directional single-channel connection. RS485 serial interface bus transmission medium use twisted pair, which can high-speed, long-distance transmission, transmission speed and transmission distance specifications are as follows: the transfer rate to 10Mbit/s, the maximum transmission distance is 12m; transfer rate to 1Mbit/s, the maximum transmission distance is 120m; transmission rate is 100kbit/s, the maximum transmission distance 1200m.
· System: the system server, home controller, router, Communications Manager, controller, all kinds of detectors, sensors, various executing agencies, printers, etc.
· System function: family communication, family device of automatic control, family safety precautions.
· The scope of application: this system is particularly applicable to the new, expanded the intelligent housing (community) project.
(6) the adoption of the wireless network of intelligent home control system
Wireless network intelligent home control system diagram see national building standard design <智能家居控制系统设计施工图集> 03X602 sections 24, 25 pages.
· Basic characteristics: using wireless as the information transmission network, the system not only functionally unable to fully meet the requirements, but also from a systems Server-family controllers and the controller to a variety of on-site family terminal device uses the wireless transmission mode, the community, building, indoor without wiring, construction is simple, saves construction investment.
Wireless network frequency comply with IEEE802.11b standard requirements.
· System: the system server, controller, wireless transceivers, various detectors, sensors, various executing agencies, printers, etc.
· System function: family communication, family device of automatic control, family safety precautions.
· Applications: the system applicable to the new, expanded the intelligent housing (community) project, and particularly suitable for renovation of intelligent housing (community) project, do not have to the laying of lines for the transmission of data signals.
5 system design and product selection points
5.1 intelligent home control system type selection
New, expanded the intelligent housing (community) project, the use of intelligent home control LonWorks systems, Ethernet intelligent home control system or adopt RS485 smart home control system. Transformation of intelligent housing (community) project, the use of public telephone networks of intelligent home control system, intelligent home control of HFC systems or wireless network, intelligent home control system.
5.2 home controller selection
Selection of family controller mainly includes function, bus technology and modular design, extended functionality, according to the user's basic requirements for configuration and selection requirements.
(1) selection of family controller features
Home controller typically has the following features:
· Home burglar alarm;
· Family fire alarm;
· Family gas leak alarm system;
· Family emergency;
· Remote fortification and removed immediately;
· Remote alarm;
· Guest intercom;
· Household appliance monitoring;
· Household table with data acquisition and processing;
· Air monitoring;
· Access network interfaces;
· Community electronic bulletin;
· Information enquiries;
· Household appliance repair, etc.
(2) the choice of domestic controller features
In engineering design, choice of family controller features can be found in the following table shows.
5.3 bus technology and modular design
· Family controller requires use of bus technology, such as LonWorks, R5485, BACnet, C ^ NBlls, CEBus, a 10 X;
· Family controller requires modular design so that users can choose different modules to complete different functions.
5.4 extensions
Families have the controller you want to extend the capabilities that can adapt to future developments into account.
5.5 according to the user to configure the basic requirements should be made according to the user what is accused of equipment and monitor control requirements (functional requirements), and other factors, for consisting of domestic controller be configured contain module types of select and the number of select the various modules.
6 equipment installation 6.1 switches, routers, controller, Zoom box, distribution boxes, phone line box housing residential home controlSystem-settings table level SI fire security visitors talk home appliance monitoring table with data transmitter basic level (1A) 1. households installed emergency push button switch. 2. in the install intrusion alarm in the households. Have the talk and control to open the corridor population Department security features. 1 ~ 2 point heat meters, gas meters, water meters, electricity meters of automatically copied and remote transmission, overlimit judgment, automatically checking, time billing, metering and management functions in real time. Raising the grade (2A) in indoor installation of combustible gas leak alarm device. And local issue a sound and light alarm signal. 1. in the household two installed emergency push button switch. 2. install in households, intrusion alarm detector and apartment, with terrace, exterior Windows intrusion alarm system installed one. Have the talk and controlling the population of la open corridor door at. For tenants and security monitoring centre's direct contact. 2 points above heat meters, gas meters, water meters, electricity meters of automatically copied and remote transmission, overlimit pan off, automatic checking, time billing, metering and management functions in real time. Advanced level (3A) 1. indoor installation combustible gas leak alarm system, when gas leaking alarm automatically when the source is open round the gas appliance, and be sent in place sound and light alarm signal. 2. in household settings automatic fire alarm installations. 1. in the households of not less than two installed emergency push button switch. 2. install in households, intrusion alarm detector and balcony doors, external Windows installation intrusion alarm device. With voice, video intercom and turn the open corridor entrance door function for domestic and security monitoring centre's direct contact.　　2 points above heat meters, gas meters, water meters, electricity meters of automatically copied and remote transmission, overlimit judgment, automatically checking, time billing, metering and management functions in real time. These devices should be installed in electric vertical or public sidewalk wall (Interior). 6.2 home controller concealed (or out) inside a wall (part one), its bottom margin around ground 1.4m. Home controller should be set in the household door near (within a suitable distance apartment 0.5m), and simple operation (including the fortification and removed immediately). 6.3 combustible gas detector installed in the gas pipeline in the kitchen, cooking facilities nearby, when households are using natural gas, gas detector suction ceiling installation in margin below the ceiling 300ram; when households are using liquefied petroleum gas, gas detectors installed in a place away from the ground up. 300mm 6.4 heat detector settings in the kitchen, it sucks the ceiling installation. 6.5 smoke detector set in the living room, bedroom, room, it sucks the ceiling installation. 6.6 emergency push button switch settings in the living room sofa and master bedroom bed near the wall, and bathroom wall. Emergency push button switch concealed inside a wall, its bottom margin ground 0.5m ~ 1.2m. 6, Mun (Windows) magnetic switch is installed in the door leaf and door frame or window sash and the window frame. 6.8 glass breakage detector installed in Windows and glass doors (balcony) near a wall or ceiling ceiling installation. 6.9 passive infrared intrusion detector and passive microwave infrared detector dual technology/installed in the main channel of households, the importance of the room, it sucks the ceiling installation or installation in the ceiling of the corner office. 6.10 infrared remote controller installed in a charged electrical equipment on the wall near the front, the distance must not exceed the scope of the work, and the infrared and the electrical equipment does not have a shelter. 7 engineering design instance to type, for example room introduce intelligent indoor home control system design, and design standards used for dwelling residential advanced level (3A). Using Ethernet home control systems, indoor home controller and the module between R $ 485., family controllers available through telephone line or computer network receives control directive, issue the information selected family controller has Visual visitor intercom functionality.　　Home control system diagram see national building standard design <智能家居控制系统设计施工图集> 03X602 page 17, second room sized home control plan see figures 1, 2, home controller and indoor devices see shown in Figure 3. In the living room, bedroom sets a smoke detector, kitchen set, thermal detectors, combustible gas detector, the Windows of the room and the balcony sliding door and door near set (Windows) magnetic switch and glass break detector, living room sets a passive infrared intrusion detector, living room, bedroom, bathroom set up emergency push button switch.　　For electricity, water, gas are measured; the dining room, living room, bedroom lamp control; when the combustible gas detector detects a gas leak, linkage control shutting down gas pipeline on the solenoid valve, exhaust fan, and when there are each kind of detector alarm, linkage alarm generator emits a beep sound.　　Home controller providing a total of 13 Road input: meter (meter installed in lighting distribution box), gas meters and heat meters, flammable gas detectors, heat detectors, smoke detectors, emergency push button switch, passive infrared intrusion detectors, glass break detector 1 Road, water meter, access (Windows) magnetic switch all 2 road.　　Home controller providing a total of 7-channel output: alert generator control 1 Road, gas pipeline solenoid valve control 1 Road, exhaust fan control 1-channel, 4-channel lighting control. Three-room apartments, Penthouse structure, Villa of intelligent home control plans and home controller and indoor devices see national building standard design < intelligent home control system design and construction Atlas 03X602. 8 design matters when fire prevention code provisions must be set when the fire alarm system, smoke detector and heat detector and combustible gas detector settings and components of the system shall be guided by the automatic fire alarm system design code GB50116-98.