I. Introduction
Modern colleges and universities usually include various supporting functional areas such as main teaching building, office building, dormitory building, library, laboratory building, lecture hall, dining hall and sports venue; and have advanced teaching equipment and campus communication network. The requirements for the intelligence level of the equipment are also getting higher and higher, especially as a large-area campus, often because the control points are not concentrated, and the management is inconvenient, resulting in a large amount of energy waste, and the traditional control The above requirements are very cumbersome and it is difficult to achieve good management. The best technology and talents in colleges and universities, the focus of training and education, should also promote the energy-saving wind, do the responsibility of saving energy, and make effective work in energy-saving management measures and technical measures.
The “management-type†energy-saving control technology can solve the above problems well. The so-called “management-type†energy-saving refers to the realization of energy management through the technical means of the intelligent control system, and the integration of the energy management system into the intelligent control technology, which makes people feel free. Wasted habits change. Reduce the waste of resources caused by the negligence of managers, save energy and human resources; enhance the flexibility and reliability of energy-saving control systems while fully meeting the requirements of use.
Second, the demand analysis of energy-saving control systems in modern schools
Because the school itself is a feature of teaching and student life, it is often because some students leave the classroom and forget to turn off the lights and air conditioners (or turn the cooling temperature of the air conditioners low when using them) and the power of other equipment. The phenomenon of frequent operation of lights and air conditioning has caused a lot of waste.
Among the energy consumption of buildings, the energy consumption of air conditioners and lighting accounts for a high proportion. In addition, the use of electricity in the dormitory is not standardized, and the use of high-power illegal electrical appliances is used, causing hidden dangers of power consumption and wasting energy. Therefore, energy conservation for these two parts will be a very effective energy saving method.
1. The teaching building requires a moderate learning environment to provide a good learning environment, so that teachers and students can feel comfortable in the classroom to reduce “light pollutionâ€.
2. The number of lamps in the teaching building is large, so the cost is high, and the control system is required to extend the life of the lamp and reduce the running cost.
3. The management building is required to be able to monitor the power of lights, air conditioners, fans and equipment in all areas of the classroom in real time and to switch scene functions automatically or manually according to the needs of different occasions.
4. The teaching building requirements can save energy consumption and save management costs through the control system.
Traditional control cannot be realized or it is difficult to achieve the above functional requirements. In the HDL-BUS intelligent control system, these functional requirements can be easily realized by various control settings of the output execution device and the function settings of the input device.
Fourth, energy-saving control system transformation design parameters
1. Do not change the original strong electric line of the teaching building, but add intelligent control equipment at the end of the air switch; the load line is directly connected to the intelligent control equipment.
2. The intelligent relay module is used to control the opening and closing of the lighting circuit and the power supply of the device, and the infrared code transmitter is used to control the switch, temperature, wind speed and mode of the air conditioner.
3. The intelligent relay module is installed on the standard 35mm Ding rail and installed in the distribution box; the infrared code transmitter is installed in the 86 bottom box and installed behind the air conditioner; the LCD control panel is installed in the 86 bottom box inlay wall. Next to the box.
4. The communication line of the control system equipment adopts five types of twisted pairs, and the devices are connected in series by hand.
5. Each layer of control equipment is connected in series and then connected to the campus optical LAN through the bus switch.
6. Program the control function to realize the timing switching between different scenarios to achieve energy saving under the premise of satisfying the use.
7. The energy-saving software can automatically or manually detect the running status of the equipment, and can alarm and prompt.
Energy-saving software main interface
8, smart meter can monitor the school's electricity current in real time, and can set SMS alarm and voice prompts.
9, intelligent voice prompt system, can achieve various voice prompts related to the alarm, public broadcasting, early reading broadcast and other functions.
Energy-saving software main interface
V. Implementation method of energy-saving control in classroom building
Each classroom has separate control, on-site manual control, total control room control, timing control and air conditioning remote control. The administrator can easily turn on or off the lighting scenes of all areas at the same time through the master control switch on the computer monitoring interface of the general control room, or separately control the switch of a certain loop. Through the time in the general control room according to the school's work schedule, the time of switching lights and air conditioners is uniformly set to achieve energy saving. In order to facilitate management, the temperature, wind speed, and working mode of each classroom air conditioner can be uniformly set in the management room.
A multi-function LCD control panel is set up in each classroom as the on-site manual control mode, and the management authority password is set to prevent misoperation by non-management personnel. The classrooms usually work under the management of the general control room. When the campus network fails, the administrator can enter the password to manually control the classroom.
The intelligent voice prompt system can be used to read students during early reading, and can play different music or public broadcast during the class.
Smart LCD control panel