Analysis of intelligent lighting solutions for large stadiums
I. Project background
Modern large-scale comprehensive sports venues (hereinafter referred to as sports stadiums), which not only can meet various large-scale competitions and cultural performances, but also can undertake different large-scale exhibitions and gatherings; the museum is divided into main stadiums and general venues, usually They all include badminton halls, table tennis halls, volleyball halls, tennis courts, basketball courts and other venues.
Lighting is one of the important aspects of the stadium's functions. The focus of stadium lighting is sports field lighting, which is competition lighting. Secondly, general lighting, auditorium lighting, emergency lighting, site lighting, building facade lighting and roads. Lighting system is an important part of stadium lighting; how to meet the scene lighting of various competition venues, unified treatment of all parts of the lighting system, so that color temperature, illumination, glare, color rendering index have reached the prescribed standards; It is the choice of lamps and light sources. It also depends on the choice of control system and how to arrange the coordination of various parts to accurately express the requirements of various competitions. The intelligent lighting management system is a modern comprehensive function stadium. The necessary choice.
Second, the demand analysis
1. Modern stadium lighting features
The modern multi-purpose sports halls are divided into two areas according to functional areas, namely the main stadium and the auxiliary area. All auxiliary areas can be subdivided into auditoriums, restaurants, bars, cafes, conference rooms, and more. Modern sports venues have the following basic requirements for lighting:
1 Athletes and referees: able to clearly see any activity in the venue and play the best performance.
2 Spectators: Watch the game in a comfortable situation, while clearly seeing the surrounding environment, especially during the entry, viewing and exit security issues.
3 TV, film and journalists: The game, the athlete's near-mirror (big close-up), the auditorium, the scoreboard, etc., can take good results.
The lighting of the main stadium not only requires the lighting brightness to be stable and reliable, but also meets the visual requirements of the athletes during the competition, and must also meet the requirements of color television broadcasting and photography for lighting. Generally, the color rendering index Ra of the main stadium lighting should be greater than 70, the color temperature should be 3000-7000K, and the brightness should be 300-1500 Lux. In normal games, the training illumination can be reduced to below 750 Lux.
The lighting of the main stadium can generally be based on metal halide lamps, mixed with iodine tungsten lamps and PAR lamps as a supplement to meet the requirements of the control. Due to the high power of the metal halide lamp (250W-2000W), its starting current is 1.5 times larger than the normal working current. The starting time of the lamp is 4-10 minutes, and the starting time is longer, about 10-15 minutes. Perform the necessary control of the start of the metal halide lamp.
In the same competition venue, the requirements for the lighting mode of the venue vary according to different sports competitions. Even if the same competition is in different time periods, such as preparation for the game, the start of the official competition, the rest of the venue, the auditorium, etc., the lighting requirements for the venue are not The same, therefore, the lighting control of the playing field needs to adapt to different lighting modes, and it is difficult to achieve various control requirements with general control devices.
Lighting effects are particularly important in areas where the various functions of the auxiliary area are different and the lighting effect plays a key role in the overall environment. A variety of light sources are usually used, which are style and rich in layers. Through dimming and scene presetting functions, a variety of lighting effects are created to change different light spaces, giving people a comfortable and perfect visual enjoyment.
2, functional requirements analysis
Sports venues usually have the characteristics of multiple lighting circuits, high power, and scattered lamps. Different scenes are needed to meet the functional requirements of different occasions.
The traditional lighting circuit is connected from the circuit breaker to the switch to the luminaire. Because there are many circuits in the stadium, there are many cables to the control room, so the bridge size is getting bigger and bigger, and it consumes a lot of wires and bridges.
The output relay of the intelligent lighting control system is installed in the distribution box together with the circuit breaker. Multiple distribution boxes are distributed in various places in the stadium area. Five types of twisted pairs are used to connect multiple distribution boxes. The five types of twisted pairs are connected to the on-site control panel and then connected to the control room. In the control room, panels can be used to control the lighting of the entire stadium. In this way, a large number of wires and bridges can be saved.
In the traditional way, if the complex functions such as multi-point and regional control are realized, the circuit is particularly complicated; while the intelligent lighting control system realizes the functions of multi-point control and regional control, the circuit will be very simple.
Third, intelligent lighting control
1. Scene control: In the public area, the control of the light area is performed according to the preset scene through the scene control panel, and the opening and closing can be defined, and the delay can also be defined, for example, the automatic delay is turned off after the light is turned on.
2. Timing control: In some public areas, time control can be adopted, and the switching time of the lights can be arranged according to the normal working time, so that the lights can be turned on and off periodically.
3. Infrared movement control: The infrared movement sensor automatically controls the illumination of public areas (such as corridors, lounges, stairwells, etc.), and the working status can be changed by the central monitoring computer according to actual needs.
4, on-site panel control: each lamp zone can be controlled not only automatically (timed or computer), but also on-site control to facilitate the automatic (timed or computer) state to change to manual control lights when special circumstances occur. switch status.
5. Centralized switch control: Through the monitoring software with graphic display used on the central monitoring computer customized for the stadium, the end user is provided with a simple and clear interface, easy operation and friendly graphical interface, so that non-professionals can also be normal. Use to control the opening and closing of each or each set of lights.
6. Group combination control: Through the central monitoring host, all the lighting points can be combined and controlled in large scenes. In the holidays, the lighting of the whole building can be transformed by the preset lighting effect to form the whole building lighting. The effect changes.
7. Linkage with other systems: Through the interface, it can be linked with other systems (such as building control, fire protection, security, etc.), and the entire lighting system and other systems can be controlled according to specific needs.
8. Wide-area control: According to the needs, the working status of the entire lighting system can be remotely monitored through the Internet or mobile phones.
Fourth, the design principles
1. Advancement and applicability
While the technical performance and quality indicators of the system reach the domestic leading level, it ensures that the installation, debugging, software programming and operation of the system are easy and easy to use, and have the characteristics suitable for the project. Intelligent control system network technology adapts to the requirements of the development of the times. At the same time, the system can be used for various management levels. Our system functions are configured to provide users with comfortable, safe, convenient and fast guidelines, and the operation is simple and easy to learn.
2. Economic and practical
The system fully considers the user's actual needs and the trend of information technology development. According to the user's site environment, design a system configuration scheme suitable for the site situation and meet the user's needs. Through a strict and organic combination, the best performance-price ratio can be achieved. It saves users' engineering investment while ensuring the requirements of system function implementation and achieves economic and practical purposes.
3. Reliability and safety
Designed according to the principle of high starting point, high quality and high reliability, it can ensure the accuracy, completeness and consistency of data after system failure or system failure, and has the function of rapid recovery. The system has a complete set of management strategies to ensure the safe operation of the system.
4. Openness and standardness
Open, standardized technology enables easy integration of air conditioning, ventilation and lighting into a single platform. This will greatly reduce personnel training and equipment maintenance costs, improve energy efficiency, and provide value-added services by collecting and sharing a large amount of real-time equipment operation and capital consumption data. Open systems use protocols such as TCP/IP and LonWorks, which are compatible with almost all systems on the market and can be integrated into the same network architecture, so engineers can customize the solution according to the actual situation. Our systems are not limited to using one vendor's technology, giving you more choices.
5, expandability
The system design takes into account the future development and use of technology, has the possibility of updating, expanding and upgrading, and expands the system functions according to the actual requirements of future project engineering, while leaving redundancy in the design of the program to meet the future development of users. demand.
6, the pursuit of optimal system equipment configuration
In order to meet the requirements of users for functions, quality, performance, price and service, we pursue the optimal system and equipment configuration to minimize the user's system cost.
7, lifetime maintenance service
We are always convinced that every investment of investors should be exchanged for long-term returns – either tangible economic benefits or the cornerstone of career success. Taking into account the specificity of each building, we will work closely with you to tailor a practical solution to your changing needs. We are committed to providing you with maintenance and renewal services based on the latest technological research results, so that the building will remain youthful and provide you with a comfortable and energy-saving environment.
Fifth, the advantages of using intelligent lighting
1, to achieve intelligent control
The intelligent lighting control system adopts advanced electronic appliances and communication technology, which can realize single point, double point, multi-point, area, group control, scene setting, time switch, real-time monitoring on site, and can also be used in advance for various sports competitions. Illumination control mode, lighting quality requirements are pre-programmed with lighting control mode.
For example, the stadium has a pre-programmed scene of various lighting modes, such as basketball, tennis, handball, volleyball, etc., which can be played in advance through the intelligent lighting control system, and is stored in the panel button to make it fully automatic; According to the requirements of different scenes during the game, tap the button to realize various scenes required during the game.
2, in line with the green lighting plan
Intelligent lighting control system optimizes energy utilization, reduces operating costs; protects lamps and reduces lamp damage; intelligent control: makes full use of natural light illuminance changes, determines the range of electrical lighting; low-voltage system design, easy for economic accounting units Metering
In the stadiums, the lighting levels are pre-programmed according to the system, and the illumination values of the high, medium and low illuminance standards are selected. The appropriate lighting method is adopted, and the lighting requirements are adopted in the places with high lighting requirements. Lower partition lighting or other energy saving methods.
For example, for various competitions to be broadcast live and satellite, the illuminance standard should use a high illuminance value. For the training competition, the illuminance standard can be used to illuminate the value. For normal training, only the area illumination is turned on. They can be preset in the intelligent lighting control system to achieve the desired results.
3, easy to manage, reduce maintenance costs
The intelligent lighting control system changes the traditional lighting artificially simple switch management mode. It uses advanced electronic and electrical technology to display the entire integrated stadium lighting status on the monitoring interface for browsing and real-time monitoring; thus enabling the management of the entire stadium. Rising to a new management model, it also reduces the maintenance process and time of the entire system, reducing maintenance costs and bringing a huge return on investment.
4, simple design
The traditional lighting control circuit design is more complicated, and the design control and load should be considered comprehensively. The intelligent lighting control system only needs to consider the number of load circuits, the capacity and the position of the control points. The various complex functions required can be installed in the hardware. It is implemented by software programming after completion; even if you change the design at the last minute, it can be done because it only needs to be reconfigured.
5, easy to install
The traditional lighting control power line is long and the construction is troublesome. The wiring of the intelligent lighting control system is only between the control devices and between the control device and the load, so the amount of cable on the main line can be minimized, and the comprehensive statistics show that the intelligence Lighting control system wiring can save up to 30% in material costs compared to conventional wiring, and installation time can be greatly reduced. On-site construction personnel can clearly feel that the installation of intelligent lighting control systems is simple, fast and inexpensive.
6, safe to use, sustainable development
According to the user's needs and changes in the external environment, it is only necessary to modify the software settings instead of modifying the wiring to adjust the lighting layout and expansion functions, greatly reducing the transformation cost and shortening the modification cycle. The working voltage of the control circuit is the safety voltage DC24V. Even if the switch panel accidentally leaks, it can ensure personal safety. The system is open and can be combined with other property management systems (BMS), building automation systems (BA), security and fire protection systems. In line with the development trend of intelligent buildings.
7, energy saving and environmental protection
After adopting the intelligent lighting control system of the bus system, a large number of low-voltage non-shielded cables can be used to replace a large number of high-voltage cables, so that the use of PVC materials can be reduced during the construction process, and environmental pollution can be reduced.
8, using intelligent lighting system, is also an important symbol of modern sports venues
The perfect facilities, complete functions and advanced craftsmanship are the embodiment of the modern sports stadium level; its lighting design is a functional, technical and difficult design. Whether the stadium venue lighting can meet the high standard lighting quality requirements is one of the main signs to evaluate a comprehensive sports stadium; it also directly reflects the degree of modern technology application of the stadium.
Sixth, equipment configuration introduction
1, the selection of equipment principles
Different intelligent control devices are selected according to different functional areas. The control module is mainly installed in the control box. According to the different control loops, the corresponding control modules are selected to meet the control needs and make full use of the resources and features of each product. The selection of control panel, infrared detector, etc. is mainly based on different functional areas, and the most suitable equipment is selected to achieve the best effect. E.g:
Stairway aisle, bathroom, etc.: Use infrared detector to automatically open the control light path by sensing the human body movement, and automatically close after delaying for a period of time. Features inductive ambient brightness adjustment, time delay and function lock.
Ordinary functional area: The lighting layout of this area is relatively simple. Considering its specific use function, the intelligent control panel can be used to connect with other equipments of the system, meet the control requirements, and be economical and beautiful.