Application of ABB intelligent lighting system in

2022-08-04
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The application of ABB intelligent lighting system in intelligent buildings

1 the application effect of intelligent lighting system in intelligent buildings

intellectualization has become the mainstream technology in today's building development, covering from air conditioning system, fire protection system to security system, as well as perfect computer network and communication system. However, intelligent lighting has been neglected in China for a long time. Most buildings still use the traditional lighting control mode. Some intelligent buildings use building automation (BA) system to monitor lighting, but they can only realize simple regional lighting and timing switch functions. In contrast, intelligent lighting system shows strong advantages, and it is more and more widely used in intelligent buildings. The application effect of intelligent lighting system in intelligent building is as follows:

(1) realize intelligent lighting control. The intelligent lighting control system can make the lighting system work in the fully automatic state. The system will work according to several basic states set in advance, and these States will automatically switch with each other according to the preset time. For example, at the end of a working day, the system will automatically enter the working state at night, automatically and very slowly dim the lights in each area. At the same time, the movement detection function of the system will also take effect automatically, automatically turn off the lights in the unattended area, and adjust the lights in the occupied area to the most appropriate brightness. In addition, the deformation degree of the upper and lower end faces of the illumination in each area can be changed at will by programming to meet the requirements of different scenes in various occasions. Intelligent lighting can automatically adjust the illumination to the most appropriate level. For example, in places with good natural lighting such as windows, the system will make good use of natural lighting and adjust it to the most appropriate level. When the weather changes, the system can still automatically adjust the illumination to the most appropriate level. In short, no matter where or how the weather changes, the system can ensure that the indoor illumination is maintained at the preset level

(2) improve the working environment and work efficiency. In the traditional lighting system, the fluorescent lamp equipped with the traditional ballast flashes at the frequency of 100Hz. This kind of stroboscopic makes the staff's mind swell, eyes tired, and reduces the work efficiency. The dimmable optoelectronic ballast in the intelligent lighting system works at a very high frequency (40~70khz), which not only overcomes the stroboscopic, but also eliminates the brightness instability during the lighting, and improves the work efficiency while providing people with a healthy and comfortable environment

(3) considerable energy saving effect. The intelligent lighting control system uses advanced power electronic technology and can intelligently adjust the lighting of most lamps (including incandescent lamps, fluorescent lamps, sodium lamps, mercury lamps, neon lamps, etc. equipped with special ballasts). When the outdoor light is strong, the indoor illumination is automatically dimmed. When the outdoor light is weak, the indoor illumination is automatically dimmed, so that the indoor illumination is always kept near a constant value, so that the natural light can be fully used to achieve the purpose of energy saving. In addition, the management system of intelligent lighting adopts such methods as setting the working state of lighting to realize energy saving through intelligent management

(4) improve management level and reduce maintenance cost. The intelligent lighting control system converts the artificial opening and closing of ordinary lighting into intelligent management, which not only enables the building managers to apply their high-quality management consciousness to the lighting control system, but also greatly reduces the operation and maintenance costs of the building and brings a large return on investment

2 comparison between intelligent lighting and traditional lighting systems

2.1 comparison of line systems

(1) comparison of single control circuit systems. Features of traditional lighting single control circuit: a. the control switch is directly connected to the load circuit; b. When the load is large, the capacity of the control switch shall be increased correspondingly; c. When the switch is far away from the load, the consumption of large section cable increases; d. Only simple switching functions can be realized

features of single control circuit of bus type intelligent lighting system: a. the load circuit is connected to the output end of the output unit, and the control switch is also the initiator of "interconnection +" idea, and the EIB bus is used to connect with the output unit. When the load capacity is large, only increase the output unit capacity, and the control switch will not be affected; b. When the switching distance is long, only the length of the control bus needs to be lengthened to save the consumption of large section cables; c. Multiple functions (on/off, dimming, timing, etc.) can be set by software

(2) comparison of dual control circuit system. Characteristics of traditional lighting dual control circuit: A. two single pole dual switches are used to realize dual control, and lighting cables are connected between the switches; b. When multi-point control is carried out, the cable connection between switches is increased, which makes the line installation very complicated and the engineering construction more difficult

features of dual control circuit of bus type intelligent lighting system: A. to realize dual control, simply connect a switch in parallel on the control bus; b. When multi-point control is carried out, multiple switches are connected in parallel in turn, and only one bus is used to connect the switches. The circuit installation is simple and easy

2.2 comparison between intelligent lighting and traditional lighting control system

(1) comparison of control modes. a. Traditional control adopts manual switch, which must be opened or closed one way at a time; b. The intelligent lighting control adopts low-voltage secondary small signal control, which has strong control function, multiple modes, wide range and high degree of automation. By realizing the preset and memory functions of the scene, you can start a lighting scene only by pressing a key on the control panel (different light and dark combinations of each lighting circuit form a lighting effect), and each lighting circuit will automatically change to the corresponding state. The above functions can also be realized through other interfaces such as remote control

(2) comparison of lighting modes. a. The traditional control mode is single, only on and off; b. The intelligent lighting control system adopts the "dimming module", which produces different lighting effects in different occasions through the dimming of lights, creating different comfortable atmospheres

(3) comparison of management methods. a. The lighting management of traditional control is artificial; b. The intelligent control system can realize the automation of energy management. Through the distributed network, only one computer can manage the whole building

3 energy saving analysis of intelligent lighting system

3.1 centralized management to reduce man-made waste

in modern high-rise office buildings, the phenomenon of man-made waste of lighting energy is still very serious. Whether there are people or no people in the room, it is often a "constant light". The intelligent lighting system can be controlled in a decentralized manner and managed in a centralized manner. In the central control room of the building, the management personnel can turn off the lights in the unattended room by operating the keyboard

3.2 automatic dimming, making full use of natural light

the light sensing switch in the intelligent lighting system controls the lighting by measuring the illumination of the working face and comparing it with the set value Set up 16 office switches in key cities such as Shenyang, Changchun, Beijing, Guangzhou, Wenzhou, Shenzhen, Xi'an, Chengdu, Zhengzhou, Changsha, Taiyuan, Wuhan, etc., which can maximize the use of natural light, achieve the purpose of energy saving, and also provide a relatively stable visual environment that is not affected by seasons and external climate environment. Generally speaking, the closer to the window, the higher the natural illumination is, so the illumination provided by artificial lighting is low, but the synthetic illumination should be maintained at the design illumination value

3.3 automatic dimming to maintain the consistency of illumination

when designing new buildings, general lighting designers will consider that the efficiency of lamps and the reflectance of room walls will decline over time. Therefore, the initial illuminance is set high. This design not only causes inconsistent illuminance during the service life of the building, but also causes unnecessary waste due to the high illuminance design. After the intelligent lighting system is adopted, although the illuminance is still high, the system will maintain a constant illuminance in the lighting area according to the preset standard brightness due to the intelligent dimming, This is one of the reasons why the intelligent lighting control system can save energy

3.4 it is easy to install and save cables

abb intelligent lighting system adopts two core wire control, and uses EIB bus to connect all inputs, outputs and system components in the system. Large cross-section load cables are directly connected to lighting fixtures or other electrical loads from the output end of the output unit without going through intelligent switches. There is no need to consider any control relationship during installation. After the installation of the whole system, the address code of each unit is set through the software to establish the corresponding control relationship. Because the system only uses load cable connection between the output unit and the load, compared with the traditional control method, it saves a lot of cables originally connected to the common switch, shortens the installation and construction time, and saves labor costs

3.5 prolong lamp life

the fatal cause of lamp damage is electrical overvoltage. As long as the overvoltage can be controlled, the lamp life can be prolonged. The intelligent lighting control system adopts the soft start mode, which can control the electric impulse voltage and surge voltage, so that the filament is free from thermal shock and the service life of the lamp is prolonged. Intelligent lighting system can usually prolong the service life of lamps by 2~4 times, which not only saves a large number of lamps, but also greatly reduces the workload of replacing lamps, effectively reduces the operation cost of lighting system, and has special significance for a large number of lamps and areas with difficult installation. The intelligent lighting control system can not only meet the requirements of convenient control and lighting effect, but also get economic returns in reducing operating costs due to the considerable energy-saving effect (power saving can reach 20%~50%) and the extension of lamp life (lamp life can be extended by 2~4 times). It can also save most of the power distribution control equipment required for conventional lighting, and greatly simplify and save the workload of wiring through pipes. In addition, the intelligent lighting system has potential value returns. For example, the intelligent control system can make the whole system work in the most comfortable state for people, thus ensuring people's physical and mental health and improving work efficiency

intelligent lighting control system is widely used in the construction field, no matter indoor, outdoor, large and small occasions. The system is an ideal lighting control equipment for office buildings, hotels, entertainment places, commercial people, stadiums, apartments and villas, courtyard scenic spots and so on

in a word, with the further promotion of EIB system in the Chinese market, ABB i-bus EIB system will increasingly show its unique advantages, bring a variety of functions to users, and occupy a leading position in the development of intelligent building technology. (end)

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