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Yiwen made a corresponding analysis of the characteristics of intelligent lighting control system from the aspects of superiority, composition, control scope and control content, and introduced some experiences of the author on the specific application of intelligent lighting control system in an office building.
Advantages of intelligent lighting control system 1 Advantages of using intelligent lighting control system Energy saving effect The main purpose of intelligent lighting control system is to save energy. The intelligent lighting control system uses various "pre-set" control methods and control components to accurately set and manage the illumination of different time and environment to achieve energy saving. This way of automatically adjusting the illuminance takes full advantage of the natural light outside. Only when necessary, the lamp is illuminated to the required brightness and the required level of illumination is guaranteed with minimal energy. The power saving effect is very obvious, generally up to 30%. In addition, the intelligent lighting control system performs dimming control on fluorescent lamps and the like. Because the fluorescent lamp adopts the dimmable electronic ballast with active filtering technology, the harmonic content is reduced, the power factor is improved, and the low voltage reactive loss is reduced.
Extending the life of the light source Extending the life of the light source not only saves a lot of money, but also greatly reduces the workload of replacing the lamp, reduces the operating cost of the lighting system, and makes management and maintenance simple.
Whether it is a thermal radiation source or a gas discharge source, fluctuations in the grid voltage are a major cause of source damage. Therefore, effectively suppressing fluctuations in the grid voltage can extend the life of the light source.
The intelligent lighting control system can successfully suppress the surge voltage of the power grid, and also has functions such as voltage limitation and yoke filtering to avoid damage to the light source caused by overvoltage and undervoltage. Soft start and soft turn-off techniques are used to avoid damage to the light source by inrush current. By the above method, the life of the light source is usually extended by 24 times.
Improving the working environment and improving work efficiency A good working environment is a necessary condition for improving the efficiency of Ding. Good design, reasonable selection of light sources, lamps and excellent lighting control systems can improve the quality of lighting.
The intelligent lighting control system replaces the traditional flat switch control luminaire with the dimming module control panel, effectively controlling the overall illuminance value in each room, thereby improving illuminance uniformity. The electrical components used in this control method solve the stroboscopic effect and do not cause discomfort, dizziness, and eye fatigue.
Achieve a variety of lighting effects A variety of lighting control methods can make the same building with a variety of artistic effects, to add color to the building. In modern buildings, lighting does not simply satisfy the visual and dark effects of people. It should also have a variety of control schemes to make the building more vivid and artistic, giving a rich visual effect and aesthetics. Take a project as an example. If the exhibition hall, lecture hall, lobby, atrium, etc. in the building are equipped with intelligent lighting control system, according to their different time and different purposes, the corresponding pre-set scenes can be used to control, which can achieve rich art. effect.
Easy management and maintenance Intelligent lighting control system control of lighting is based on modular automatic control, supplemented by manual control. The parameters of the lighting preset scene are stored digitally in the EPROM. The setting and replacement of this information is very convenient, which makes the lighting management and equipment maintenance of the building easier.
With a high economic return rate, we use the Shanghai area as a reference point to make an estimate from the power saving and the provincial lights. It is concluded that the owner can basically recover the intelligent lighting control in three to five years. The full cost of the system. Intelligent lighting control systems can improve the environment, improve employee productivity and reduce maintenance and management costs, saving the owner a considerable amount of money.
2 The composition of the intelligent lighting control system The intelligent lighting control system is only one part of the building control system. If each control system is to be centralized in the control center for control, each control system must have a standard communication interface and protocol text. Such system integration is theoretically feasible, but it is very difficult to implement it. In the project, our building intelligent management system adopts distributed and distributed mode, that is, each control subsystem is relatively independent and self-contained, and implements specific control. The building intelligent management system only provides a signal collection for each control subsystem. And monitoring role.
At present, the intelligent lighting control system is roughly divided into the following two forms according to the topology of the network, a bus type and a hybrid type based on a star structure. These two forms have their own characteristics, the bus type is flexible, easy to expand, the control is relatively independent, and the cost is low; the hybrid reliability is high, the fault diagnosis and elimination are simple, the access protocol is simple, and the transmission rate is high.
In the engineering design, the intelligent lighting control system of the building is used as an independent subsystem, adopting the international standard communication interface and protocol text, and the intelligent building management system. The intelligent lighting control system adopts distributed and distributed mode, that is, the dimming control of each unit is relatively independent, self-contained, and does not interfere with each other. Through the centralized manager and information interface, it is connected with the building intelligent management system to realize the building control center. Signal collection and monitoring of this subsystem. In short, the intelligent lighting control main system is composed of components such as centralized manager, main line and information interface, and implements the same control and signal sampling network for each area; its subsystem consists of various dimming modules, control panels, and illumination dynamics. Components such as detectors and motion detectors are configured to implement different specific control networks for each E-domain. The main system and the subsystem are connected by components such as information interfaces to realize data transmission.
3 Intelligent lighting control system control range and control content The scope of an office building project using intelligent lighting control system control mainly includes: Ding. Public office halls, computer centers and other important computer rooms, lecture halls and other multi-purpose halls, exhibition halls, conference centers, foy halls and atriums, walkways and elevator halls; the overall and facade lighting of the building is also provided by the intelligent lighting control system. Take control.
Clock control: automatic control of different illumination illuminances for lighting fixtures for normal working conditions in various domains by electrical components such as clock managers: through the electrical components of each dimming module and illuminance dynamic detector The automatic dimming control for the lighting fixtures in the normal working state in each E domain is such that the illumination in the area does not change with changes in external factors such as sunshine, and is always maintained at a preset value of illumination. E-domain scene control: Through each electrical component such as the dimming module and the control panel, the scene switching control of the lighting fixtures for normal normal state in each area is realized under normal conditions.
Dynamic and static detection control: Through the electrical components such as each dimming module and motion detector, the automatic switch control of the lighting fixtures for normal working conditions in each area under normal conditions is realized. D emergency state reduction control: through each pair of normal The electrical components such as the lighting control dimming module realize the control of the number of lighting fixtures for normal working conditions in each K and the abandonment of dimming in an emergency state.
Manual remote control: The manual control and regional scene control of the lighting fixtures for normal working conditions in each area under normal conditions are realized by the infrared remote controller.
Control of emergency lighting: refers to the control performed by the intelligent lighting control system for emergency lighting in a special area, including the following two controls: automatic adjustment of illumination in normal state and E-field scene control, and adjustment of control mode of normal working lighting fixtures The same; in the emergency state, the automatic de-dimming control, through each of the electrical components such as the dimming module for emergency lighting control, realizes the control of abandoning dimming for the lighting fixtures used for emergency working conditions in various areas in an emergency state, The emergency lighting in the accident state is 100%. 4 Conclusion Above is the analysis of the characteristics of the intelligent lighting control system and some specific applications in an office building, hoping to play the role of bricks, so that the technology Fully play its role in the field of lighting.
(Continued from page 68) 4.5 Improve management level and reduce maintenance costs The intelligent lighting control system can be controlled at the same time in the central monitoring room and on-site. The area lighting control is very convenient, and the lighting status and lighting technical parameters are clear at a glance. Intelligent lighting management in the control hall reduces maintenance personnel and improves maintenance management. In addition, the extension of the service life of the luminaire to the height of the luminaire installation of the control hall of 69 meters, the maintenance cost savings are obvious.
Although the intelligent lighting control system has a higher one-time investment, the energy saving, the reduction of operation and maintenance costs, and the improvement of management efficiency will bring great return on investment to the owners. D 5 Conclusion Control Hall Intelligent Lighting Control System Engineering in 2004 In January, the initial acceptance was passed, and the owners gave a very good evaluation of the overall perception. Many experienced controllers went to the site to experience the light environment of the lighting system, the quality of the light environment, the effect of scene switching, the effect of daylight compensation and the convenience of operation. I feel very satisfied with the aspect. Since the process equipment on the control seat has not been installed, the equipment will have some impact on the light environment after installation. After the process equipment is installed and debugged, further adjustments are made to various scene settings to achieve the most ideal, most comfortable and most energy-saving. the goal of.
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