I. Overview
The power supply bureau comprehensive dispatching building is the central project of power operation dispatching, and bears the important functions of integrated power dispatching, operation and transfer. A beautiful building landscape lighting effect and advanced lighting control system can enhance the cultural taste of the building and beautify the urban environment to express the image of a prosperous new city. Successful lighting design requires that its design closely follow the rhythm of modern architecture. Therefore, the quality of its lighting planning and design directly affects the social and economic benefits of modern architecture. As the cohesive and concrete manifestation of urban spiritual civilization, modern architecture reflects the cultural taste of modern new cities. The realization of this goal will contribute to the further improvement of the image of the night city.
Second, the system design principles
1 , Design Principles
As a supplier of intelligent control equipment, comprehensive consideration should be made according to the scale of the building, the function of use, the object of use and the management requirements, and a reasonable design that is suitable for the specific project use and management needs should be made. Similarly, the design of intelligent lighting control systems should follow this basic law.
For the night vision lighting control system of the power supply bureau comprehensive dispatching building, we have established the design goal of “safe and reliable, advanced technology, reasonable economy, high degree of automation, convenient maintenance and managementâ€, and provide advanced technical means to ensure the safe operation of the bridge.
l Advanced: The system design adopts advanced technology and has proven mature and reliable technology. In the next few years, technology will continue to lead and will continue to upgrade with the development of science and technology;
l Reliability: Ensure that the system operates safely and reliably during its life cycle;
l Standardization and modularization: All designs comply with relevant international standards, national standards or ministerial standards. All software and hardware designs are modularized to facilitate system expansion, operation, maintenance and upgrades;
l Scalability: As the demand for modern management grows, ensure that the system has sufficient scalability;
l Practicality: Ensure that the main problems of traditional lighting control systems can be solved after the system is put into operation, improve the level of automation, and improve economic and social benefits;
l Economic rationality: the system has high performance-price ratio and lowest life cycle cost;
l Ease of use and maintainability: the system is easy to use, friendly man-machine interface and easy to maintain;
l Flexibility and openness: The system is flexible enough to meet a wide range of special needs, and openness guarantees interface with smart devices from a variety of other vendors;
l Security: Ensure that the system operates safely and reliably, and prevent human error and external interference from affecting the security of the system.
2 , System design requirements
In addition to the conventional design principles, this technical solution is designed according to the specific requirements of the building for intelligent control systems, paying particular attention to the following details:
l Determine technical solutions in strict accordance with technical requirements, and select hardware systems and control software that fully meet the requirements.
l According to the construction of the building network information system, ensure that the resources of the building network system are used as much as possible.
l Ensure the effective integration of the lighting control system and other systems, focusing on the similarity of the front-end intelligent control module and the uniformity of the background control software.
Third, the overall structure of the lighting control system
The intelligent lighting control system of the whole building adopts the structure of a tree trunk network subnet. The relevant control devices in each subnet are connected into one subnet through an HDL-BUS control line. Each subnet is converted into a TCP/IP network signal through a bus switch and then connected to an Ethernet switch in the central monitoring system to form a complete subnet. Intelligent lighting control network to achieve intelligent control and automatic management of the entire building environment lighting.
The central control room is set up, and the lighting of the entire building can be monitored in the central control room through technical means such as timing, control panel, touch screen, and central graphic monitoring software.
As an important part of the city's night scene, the exhibition of modern architecture night scenes is a technical guarantee to enhance the city's cultural taste. The flexible lighting control system and the state-by-state control principle can prevent the phenomenon of bright and sunny days, and strive for high requirements, high standards and high grades.
The system network structure diagram is shown below:
Fourth, intelligent lighting control and monitoring system technical solutions
1 , the total control room:
The entire floodlight can be controlled and monitored through a lighting control server located in the central monitoring room. All functions of the system can be implemented on the server. According to the requirements of different occasions, that is, the different requirements of the usual lighting state, the usual power-saving lighting state and the holiday lighting state, different scene combinations can be set, and only one switch can be realized.
Through the event timer in the total control room, the illumination of the entire building can be automatically operated according to the astronomical clock, which greatly improves the management level. The event timer can still control the working state of the lighting circuit when the server is turned off. In an emergency, the 7-inch true color touch screen in the monitoring room can also be used to directly control the lighting circuit of the entire building.
Through the central graphic monitoring software in the total control room, the real-time operating status of the entire lighting control system (switching status, power consumption, system detection, etc. of each lighting circuit) can be monitored.
2 , podium lighting control system
The podium lighting control system is mainly for the dynamic effect control of LED illuminating tubes and LED floodlights with DMX signals. The DMX effect control is controlled by the server to control the DMX controller on the network, and then the DMX512 signal is used to control the effect of the luminaire through the DMX interface of each LED.
Through the DMX synchronous performance controller, you can realize a variety of combinations of changes to the LED of the podium, which can produce 99 kinds of dynamic changes, such as water, chase, jump, flicker and other changes between different colors, giving the building a night view. Lighting adds a more beautiful highlight.
3 , the roof floodlight control system
Through the intelligent switch module to achieve control of the floodlighting of the roof, a variety of lighting scene modes can be combined. Through the intelligent switch module, according to the reasonable combination of the loop configuration and the time period, a colorful and varied effect is created, and the single face of the past floodlight illumination is changed into a light effect demonstration. When preparing the lighting control program, the number of lights can be determined according to the needs of different dates and different time periods, which enriches the lighting effect, avoids unnecessary energy waste, prolongs the life of the lamps, reduces the maintenance cost of the lamps and runs the floodlights. Cost, greatly improving lighting economy.
4, external wall LED lighting control system Wall lighting is the focus of the lighting of the entire building. Creating a colorful effect will inject life into the building and add vitality to the building.
VIDOPALY DMX Performance Control Recorder
The control of the wall LED is realized by the VIDOPALY DMX performance control recorder, which can realize various changes of the lighting of the entire wall. The combination of red, yellow and blue lights, which are flickering and changing, is even more dazzling, and will present a colorful and picturesque dream.
At the same time, you can change the effect of the light change at any time according to the needs of the owner. Just download the required animation effect to the VIDOPALY DMX performance control recorder, and the controller can play the animation effect automatically or manually by timing, without cumbersome programming. At the same time, the download can be run offline. It can be master-slave backup to ensure stable and reliable operation of the system. 5. Building external environment lighting control system
The external environment lighting control system is connected through the intelligent switch module, and the total control system can be accessed at the same time to realize timing control.
V. System design advantages
1) The HDL-Bus system is very simple to implement dual control, multi-point control, area control and other functions through software programming, which simplifies the design.
2) Flexible hardware structure and software programmable to save investment cost and maintenance operation cost and improve return on investment.
3) The control information of each unit in the system is stored independently, and the system will not be paralyzed due to a unit failure in the system. The stored information has the function of not losing data after stopping. When the power is restored, the system will automatically resume the working state before the power outage.
5) All components of the HDL-Bus system are connected into a network, and the lighting layout can be modified at any time without changing the wiring, which reduces the construction difficulty and shortens the installation period.
6), HDL-Bus system control signals are packaged and transmitted on the bus in a chronological order in a specific way, with strong anti-interference ability and high reliability.
7), the system configuration is flexible, you need to add control switches or output relays can be incorporated into the original network operation.
8) The control circuit is separated from the load. The working voltage of the control circuit is the safety voltage DC24V. Even if the switch panel accidentally leaks, it can ensure personal safety.
9) The HDL-Bus system uses weak current signals to control the high-voltage circuit, so it can realize complex functions such as real-time monitoring through a computer.
10), HDL-Bus system has developed a powerful interface software that can be easily integrated with other systems.
11), simple wiring, easy maintenance:
The lighting circuit is simple in design, easy to install, and easy to operate and maintain. According to the changes of the environment and user needs, only the software modification settings or a small number of line transformations can realize the change and function expansion of the lighting layout distributed control system. Due to the Ethernet transmission used, one (network cable) transmits all control, setup and monitoring signals, saving wiring costs.
12), it is easy to expand and change:
To lay the foundation for future system expansion and integrated management. Can adapt to the access of various devices, DMX, LED, BA systems.
13), remote settings:
All network lighting equipment can accept remote settings and calls from the network, greatly reducing labor intensity.
14), network monitoring:
It is convenient to monitor the real-time running status of the entire lighting control system (switch status, power consumption, system detection...). It can also detect other power equipment for easy management.
15), network data:
l Automatic recording and development of historical data using the entire lighting control system. Through the arrangement of the simulated lighting fixtures on the total server, the light-on mode and on/off state of each light group are displayed; the cumulative startup time of the lamps is recorded, and the life of the automatic lamps is counted.
l The system control line adopts the 485 industrial bus structure, which can easily expand the control and control lamps at any time.
l The system has a manual panel control switch to manually operate the opening and closing of each lamp group when necessary.
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