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1、Intelligent Lighting Control SystemAbstract: This paper describes the development of lighting control systems, intelligent lighting control system mainly System functions and applications are discussed.Key words: intelligent lighting control bus transfer protocol green energy1、IntroductionWith the c
2、ontinuous development of our economy, rapidly rising living standards, people working and living environment have become increasingly demanding, while the lighting system requirements have become more sophisticated, the traditional lighting technology has been a strong blow. On the one hand because
3、of information technology and computer technology changes in lighting technology, providing technical support; the other hand, due to energy shortage, the state more and more attention on energy-saving lighting, new lighting control technology to develop rapidly to meet with By energy conservation,
4、comfort, convenience requirements. Lighting control lighting control from the traditional manual method, automated lighting control to todays intelligent lighting control.Intelligent lighting control system is based on computer-controlled all-digital platform, modular, distributed bus control system
5、, the central processor modules communicate directly through the network bus, the bus makes use of lighting, dimming, blinds, scene control to achieve intelligent, and become a complete bus system. Can be based on changes in the external environment in the device automatically adjust the status of t
6、he bus to reach safety, energy conservation, human effects, and can use in the future, in accordance with the requirements of users through the computer re- Way to increase or modify the systems functionality, without having to re-laying of cables, intelligent lighting control system, high reliabili
7、ty, flexible control, lighting control is the traditional way can not be done. 2.1 The basic components and monitoring the contents of the system 2.1.1 System components Intelligent lighting control system is usually dimmer module, switch module, input module, the control panel, liquid crystal displ
8、ay touch screen, smart sensors, PC interface, time management module, hand-held programmer, monitoring computer (need to bridge a large network connection) and other components composition. 1) The basic principle of the dimming module is a microprocessor (CPU) The size of the opening angle control S
9、CR to control the average amplitude of the output voltage to adjust the brightness of light sources. 2) switch module is controlled by the power switch relay output to control light. 3) input module is to accept passive contact signals transmitted to the microprocessor via the bus. 4) The control pa
10、nel is intuitive operation for control of lighting scenes were the parts, which is controlled by a microprocessor, can be programmed to complete a variety of different control requirements. Enter symbol identifying the microprocessor, after processing control information sent via the bus, to control
11、 the corresponding dimming of the light source module or switching module control the dimming or switch control. 5) The illumination of the sensor interface module for connection to detection, there is detection, motion detection and other sensors. 6) Time Management module control system with anoth
12、er device on the bus interface to automate tasks and time control. 2.1.2 Monitoring Contents 1) The central control system through the central station and the system software on the switch, dimming, clock, lighting, monitoring and management of the state. 2) switch control, by the central station, l
13、ocal control panel for lights for open, close control. 3) dimming control, by the central station, local control panel for lighting the illumination from zero to maximum control. 4) The time clock control system based on pre-set time for light to open and close control. 5) The astronomical clock con
14、trol, enter the local latitude and longitude, the system automatically calculate the day of the sunset time, this time to control lighting according to the scene changes. 6) The scene control, through the central station, local control panel programming, lights were on, off, dimming control settings
15、. 7) Remote control, remote control via hand-held control panel with infrared light for the region under the control turned off, dimming control. 8) The illumination system according to the illumination detection sensor detection data (light, light and dark), in accordance with the pre-set parameter
16、s to automatically turn on lights, turn off, dimming control. 9) exists, motion control, according to presence detection, motion detection sensors and other detection data, in accordance with the pre-set parameters to automatically turn on lights, turn off, dimming control. 10) joint control, throug
17、h the input module receives the video security monitoring system, intrusion alarm systems, access control systems, automatic fire alarm system in the coordinated control signals to switch on the light source control or dimming control. 11) Remote control, lighting control through the Internet for re
18、mote monitoring and control system: including lighting box lighting system parameter setting changes; on the system to monitor the state of the scene illumination; state of the system to control lighting scenes. 12) Graphic control, users can use the electronic map function on the entire region for
19、visual control of the lighting, the floor plan of the whole building can be entered into the system, and use different colors to represent the current state of the region. 2.2 Intelligent lighting control system data transmission In the international lighting control system data transmission network
20、 without uniform standards, the current way of the main twisted pair, power line carrier transmission and three types of radio frequency transmission. These three transmission data rates, reliability of transmission is quite different. 2.2.1 twisted-pair transmission To twisted pair transmission twi
21、sted pair transmission network for information, the laying of lines separately for new construction, expansion of the project. There are in this way The following advantages: 1) hardware and software protocol completely open, perfect, common good.2) lines at both ends of transformer isolation, immun
22、ity to interference, lightning protection performance. 3) transmission speed. 4) The system capacity is almost unlimited, the system will not increase the emergence of unexpected failures. 5) as an information transmission medium, a large number of sophisticated equipment for general use. 2.2.2 Powe
23、r Line Carrier transmission Use of electric power line carrier transmission of information transmission network, without laying a single line for data transmission of the signals can be applied to new construction, expansion of the project, and especially for reconstruction projects. Power line carr
24、ier transmission in the current fluctuations due to power lines, data transfer rate and reliability of data transmission by a greater impact, reducing efficiency. When the monitoring equipment for a long time, no reliable data transmission may cause the system to a standstill. 2.2.3 Radio frequency
25、transmission Radio frequency transmission of information using wireless radio transmission network as the system can not only satisfy the functional requirements, indoor no wiring, simple construction, can save the construction investment for new construction, expansion of the project, and especiall
26、y for reconstruction project. RF operating frequency consistent with IEEE802.11b standards. 2.3 The scope of application of intelligent lighting control system Lighting control system can be incandescent, fluorescent, energy saving lamps, quartz lamps and other light dimming the lights on all occasi
27、ons to control the environment to meet a variety of lighting requirements. 1) offices, schools, hospitals, factories and other places of the lighting system, using the time control system on the light on, turn off the automatic control, the use of illumination sensor that automatically adjusts the i
28、llumination, energy conservation. Can be the central monitoring and control system can be connected with the construction equipment. 2) Theatre, conference rooms, clubs and other places of use of system functions and dimming the scene switches can be easily converted a variety of lighting scenarios,
29、 multi-point control. Light source can be controlled through the system, air conditioning, electric fans, electric curtains, Canada Heater and other electrical equipment. 3) The venue sports venues match required by hierarchical control, large venue should be a single light control. 4) The municipal
30、 works, squares, parks and other outdoor public places, the group using the system control software can control lighting throughout the region, the use of illumination sensors, time switches to achieve lighting automation control, system monitoring software using intelligent lighting control. 5) are
31、as where street lighting should be based on the geographical location and seasonal variation to determine a reasonable time to switch lights and the sky brightness changes according to the necessary amendments, the use of light control and time control of a combination of intelligent control. 6) Lan
32、dscape lighting used in peacetime, the general holidays, major holidays and other control mode. 2.4 Application of intelligent lighting control system features 2.4.1 use of lighting control system, realization of the intelligent lighting control, lighting systems can run in automatic state. 1) The s
33、ystem will be pre-set to switch a number of basic working conditions, such as: day, night, security and clean, Weekend and lunch and, according to pre-set time automatically in the to switch between various working conditions. For example, work time comes, the system will automatically turn on the l
34、ights and the light intensity is automatically adjusted to the most appropriate level of staff. In the window Room, the system can intelligently use of outdoor natural light, when the weather was fine, automatically dimming interior lamp; weather and dark, indoor lamp auto light, to always maintain
35、a constant brightness of room (at pre-set requirements of the brightness). 2) When the end of each working day, the system will automatically enter the evening work status, auto slow dimming the lights of the region; the same time, the system function will automatically detect the presence of force,
36、 so that no one in the office of the lights automatically turn off ; same time, there can guarantee detection of the office employees to work overtime at the appropriate brightness light. 3) The system of public corridors and staircases and other public areas of the light coordination, when the offi
37、ce has employees to work overtime, the staircases, corridors and other public areas to maintain the basic brightness of the lights, only when the person has completed all the post-office before the light transferred to the safe state or turned off. 4) manual control panel or remote control, free to
38、change the illumination of the region. 5) For the reception hall, restaurant, conference rooms, lounges and entertainment venues, may be based on different times of day, different uses of the pre-set lighting scenes, use only the best call to pre-set lighting scenes, to desired visual effects. 2.4.2
39、 maintain the consistency of illumination of new buildings into use, the illumination than the required high illumination. This is taken into account as time goes on, the efficiency of light reflection rate and room walls the sake of continued decay. If the designers in the early design of the stand
40、ard illumination, then, not how long it will less than the standard room illumination, illumination not meet business requirements. It is because of the high illumination of this new design of the room, not only resulted in use of office space (or twice at intervals decoration) of the illumination i
41、nconsistency, and because of the high illumination unnecessary waste of energy. Use of lighting control systems, as can be intelligent dimming, though still high illumination design, but the system will be in accordance with the standard pre-set brightness to the office during the period in the use
42、of constant illumination, without reducing the efficiency of lighting and wall reflection coefficient of attenuation. 2.4.3 create a good working environment, improve work efficiency in the office, with dimmable electronic ballasts for fluorescent lamps in the smart Under the control of lighting con
43、trol system with the traditional fluorescent lighting systems have significant advantages compared to. Conventional fluorescent ballasts to 100Hz frequency flashing (2 times the grid frequency), this strobe enable staff to head swollen, eye fatigue and reduce work efficiency. The dimmable electronic
44、 ballasts are working in very high frequency (40kHz 70kHz), not only to overcome the flicker, but also to eliminate the starter when the brightness of the instability, provides a comfortable environment conducive to health, but also improve the efficiency. 2.4.4 create a good environment for good li
45、ghting design service is able to create a warm, comfortable environment, adding to its artistic charm. For example, the customers first impression of the hotel entrance to the lobby of the hotel reception area, elegant and unique light environment may give care Customers feel at home, add the goodwi
46、ll of customers of the hotel, friendly and warm to attract a large number of customers; the banquet hall, function rooms such as the use light colors, and different shading intensity projection method can create three-dimensional, layered different color atmosphere, not only the guests have a comfor
47、table living environment, but also to bring art to the guests to enjoy, so that people have the feeling linger. 2.4.5 Open Lighting control system can be integrated into the construction equipment through the network monitoring system (BAS), Building Management System (BMS), the realization of the u
48、nified management of the building. 2.5 Technical Analysis 2.5.1 Line Investment savings Intelligent lighting control system is a system through the control bus to the various input, output and system support unit connected, power cable directly received from the distribution cabinet lighting or othe
49、r electrical load, and without going through the switch. Do not have to consider when installing any control relationship, and then installed in the system settings through the software code of each units address in order to establish relations between the corresponding control. Compared with the traditional control method saves a lot of the original receipt of the switch to cable, but also shorten the time