Classroom environment monitoring intelligent control system

Abstract

The invention relates to an intelligent control system for classroom environment monitoring, which is an innovation in the field of energy conservation of campus buildings and belongs to an environment monitoring and control device. A plurality of parameters in a classroom are collected, such as the number of people, air temperature, humidity, carbon dioxide concentration, illumination and the like. On and off of lighting equipment are comprehensively controlled based on the illuminance and the number of people; operation and stop of the air conditioning system are comprehensively controlled according to the air temperature and humidity; and the air volume of the fresh air system is adjusted according to the carbon dioxide concentration. In addition, the device also collects data such as water consumption, electricity consumption, heat consumption and cold consumption, and realizes accurate metering of terminal energy. Through the intelligent system, the environment monitoring and comprehensive control functions are effectively integrated, so that a more efficient energy-saving management and comprehensive control means is provided for campus buildings.

Description

Technical Field

[0001] The invention relates to the field of campus building energy conservation, and in particular to an intelligent control system for classroom environment monitoring. Background Art

[0002] Building an energy-saving, ecological and green campus is an important branch of the current building energy conservation field. The school energy conservation management system is the focus of common concern of the education, construction and environmental protection departments. The school has heavy teaching tasks, but the professional energy conservation management engineering and technical personnel are limited, and the energy expenditure and inefficient operation problems need to be solved urgently. At present, some control products have been promoted and applied in school buildings, such as automatically adjusting indoor lighting fixtures according to the number of people and outdoor illumination, setting the use time of lamps and air conditioners according to the course schedule, and automatically turning off lighting, air conditioning, television, projection and other power-consuming equipment at night and holidays. These technical products are mainly based on energy-saving monitoring, ensuring that while meeting functional requirements, the on-off controller is used to reduce standby power consumption, especially the control of lighting equipment is more popular.

[0003] On the other hand, schools prioritize teaching quality, so air quality and environmental control in classrooms are crucial. Classrooms are crowded and in a closed environment for a long time, which will cause indoor dust, exhaled polluted air, etc., which will affect learning efficiency and even affect students' physical health. By improving the lighting and ventilation conditions in the classroom, improving the quality of the environment for teachers to teach and students to learn, and reducing the physical burden during the learning process, it will help students develop physically and mentally healthy and significantly improve the quality of education.

[0004] In some high-end projects, classrooms are installed with two systems: environmental quality control and energy-saving monitoring. However, these two systems operate completely independently, making it difficult to achieve collaborative work.

[0005] Therefore, it is necessary to provide an intelligent control system for classroom environment monitoring to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent control system for classroom environment monitoring.

[0007] The present invention achieves the above object through the following technical solutions:

[0008] A classroom environment monitoring intelligent control system, comprising:

[0009] Remote switch control module, the programmable controller controls the on and off of the main power supply in the classroom through the circuit breaker; then connects the lamps through the relay, connects to the air conditioner terminal, and controls the classroom fan through the frequency conversion controller;

[0010] The temperature preset module presets control parameters such as temperature and humidity, carbon dioxide, and illumination;

[0011] Environmental data acquisition module, the programmable controller collects data from the illumination sensor, carbon dioxide sensor, people counter and temperature and humidity sensor through wired mode;

[0012] Energy consumption data collection module, programmable controller (2) collects data of smart electric meter, cold and heat meter and smart remote water meter through Zigbee wireless transmission module;

[0013] The remote intelligent lighting control module uses a programmable controller to control the on and off of the main power supply in the classroom through a circuit breaker; the programmable controller controls the number of lamps turned on through relays;

[0014] Intelligent temperature and humidity control module, programmable controller adjusts the air conditioner terminal, the speed regulating fan at the terminal can work in four modes: high speed, medium speed, low speed and off, and the water valve at the air conditioner terminal can work in two modes: on and off;

[0015] Intelligent ventilation control module, the programmable controller controls the operating frequency of the classroom fan through the frequency conversion controller;

[0016] Mode selection module, the programmable controller transmits the measured parameters and on / off status to the touch screen, and the parameters are set through the touch screen.

[0017] Furthermore, the temperature preset module can be automatically operated according to the preset value or can be manually operated.

[0018] Furthermore, the remote intelligent lighting control module specifically calculates the target illumination value based on the number of people counted by the counting sensor and the lighting effect measured by the illumination sensor, and controls the number of lighting fixtures to be turned on through the relay.

[0019] Furthermore, the intelligent temperature and humidity control module specifically calculates the target temperature and humidity values ​​based on the number of people counted by the number sensor and the comfort parameters measured by the temperature and humidity sensor, and controls the wind speed gear and water flow switch of the air conditioning fan through the air conditioning control panel.

[0020] Furthermore, the intelligent ventilation control module specifically calculates the demand for indoor fresh air volume based on the number of people counted by the counting sensor and the carbon dioxide concentration measurement data, and adjusts the operating frequency of the classroom fresh air fan through the frequency conversion controller.

[0021] Furthermore, the touch screen can be automatically controlled or manually controlled.

[0022] Compared with the prior art, the present invention realizes comprehensive monitoring of environmental quality by collecting parameters such as the number of people in the classroom, air temperature, humidity, carbon dioxide concentration, and illumination. In terms of lamp control, the device comprehensively considers illumination and the number of people, and intelligently controls the opening and closing of lamps. For the air conditioning system, accurate control of the air conditioning terminal is achieved based on the comprehensive analysis of air temperature and humidity. At the same time, by monitoring the carbon dioxide concentration, the air volume of the fresh air fan is adjusted to ensure fresh indoor air.

[0023] In addition, the device also collects data such as water consumption, electricity consumption, heat consumption and cooling consumption to achieve accurate measurement of terminal energy consumption. In order to reduce the difficulty of wiring during construction and reduce the adverse effects on decoration, the present invention adopts two communication methods: 485 bus and short-range wireless transmission Zigbee. This innovative design not only improves the communication efficiency between devices, but also helps to simplify the wiring structure of the system, providing a more convenient solution for the deployment of environmental monitoring and control systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the present invention.

[0025] In the figure, the names of the components are as follows: 1. Touch screen panel; 2. Programmable controller; 3. Circuit breaker; 4. Illuminance sensor; 5. Carbon dioxide sensor; 6. People counter; 7. Temperature and humidity sensor; 8. Electrical appliances; 9. Lamps; 10. Air conditioning terminal; 11. Frequency conversion controller; 12. Fresh air fan for classroom; 13. Smart electricity meter; 14. Hot and cold water meter; 15. Smart remote water meter; 16. Zigbee wireless transmission module. DETAILED DESCRIPTION

[0026] Example:

[0027] See also Figure 1 This embodiment shows an intelligent control system for classroom environment monitoring, including:

[0028] Remote switch control module, programmable controller 2 controls the on and off of the main power supply in the classroom through circuit breaker 3; then connects lamps 9 through relay 8, connects air conditioning terminal 10, and controls classroom fan 12 through frequency conversion controller 11.

[0029] The temperature preset module presets control parameters such as temperature and humidity, carbon dioxide, and illumination. It can run automatically according to the preset values ​​or manually.

[0030] The environment data acquisition module, the programmable controller 2 collects data from the illumination sensor 4, the carbon dioxide sensor 5, the people counter 6 and the temperature and humidity sensor 7 in a wired manner.

[0031] Energy consumption data collection module, the programmable controller 2 collects data from the smart electricity meter 13, the cold and heat meter 14 and the smart remote water meter 15 through the Zigbee wireless transmission module 16.

[0032] In the remote intelligent control module for lighting, the programmable controller 2 controls the on and off of the total power supply in the classroom through the circuit breaker 3. The programmable controller 2 controls the number of lamps 9 to be turned on through the relay 8. Specifically, according to the number of people counted by the counting sensor and the lighting effect measured by the illumination sensor, the programmable controller calculates the target illumination value and controls the number of lighting lamps to be turned on through the relay.

[0033] The intelligent temperature and humidity control module, the programmable controller 2 adjusts the air conditioning terminal 10, the terminal speed regulating fan 10-1 can work in four modes: high speed, medium speed, low speed and off, and the air conditioning terminal water valve 10-2 can work in two modes: on and off. Specifically, according to the number of people counted by the number sensor and the comfort parameters measured by the temperature and humidity sensor, the programmable controller calculates the target temperature and humidity values, and controls the wind speed gear and water flow switch of the air conditioning fan disk through the air conditioning control panel.

[0034] In the intelligent ventilation control module, the programmable controller 2 controls the operating frequency of the classroom fan 12 through the frequency conversion controller 11. Specifically, according to the number of people counted by the counting sensor and the carbon dioxide concentration measurement data, the programmable controller calculates the demand for indoor fresh air volume and adjusts the operating frequency of the classroom fresh air fan through the frequency conversion controller.

[0035] Mode selection module, the programmable controller 2 transmits the measured parameters and on / off status to the touch screen 1, and the parameters are set through the touch screen; automatic control, or manual control.

[0036] Compared with the existing technology, the present invention ensures a good learning environment by monitoring multiple environmental parameters, effectively reduces the energy consumption of energy-consuming equipment, and ensures the air quality and comfort in the classroom. The comprehensive realization of these functions enables the smart classroom system to provide a high-quality learning environment while also having the characteristics of efficient energy management and convenient operation. It has the following significant optimizations:

[0037] 1) Realize the monitoring of various environmental parameters in the classroom to ensure a good learning environment.

[0038] 2) Automatic control of equipment is realized, and energy-consuming equipment is shut down when no one is around.

[0039] 3) The illumination, temperature, humidity and carbon dioxide concentration in the classroom are controlled to ensure indoor air quality and comfort.

[0040] 4) Realizes the measurement and monitoring of energy consumption, facilitating energy management.

[0041] 5) Comprehensive use of wired communication and short-range wireless transmission to reduce construction difficulty.

[0042] 6) Compact structure, easy to install and implement.

[0043] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A classroom environment monitoring intelligent control system, characterized in that: include: A remote switch control module, a programmable controller (2) controls the on and off of the main power supply in the classroom through a circuit breaker (3); and then connects to a lamp (9) through a relay (8), and also connects to an air conditioner terminal (10), and also controls a classroom fan (12) through a frequency conversion controller (11); The temperature preset module presets control parameters such as temperature and humidity, carbon dioxide, and illumination; The environment data acquisition module, the programmable controller (2) collects data from the illumination sensor (4), the carbon dioxide sensor (5), the number counter (6) and the temperature and humidity sensor (7) in a wired manner; Energy consumption data collection module, the programmable controller (2) collects data from the smart electric meter (13), the cold and heat meter (14) and the smart remote water meter (15) through the Zigbee wireless transmission module (16); A remote intelligent lighting control module, wherein a programmable controller (2) controls the on and off of the total power supply in the classroom through a circuit breaker (3); and the programmable controller (2) controls the number of lamps (9) turned on through a relay (8); The temperature and humidity intelligent control module, the programmable controller (2) adjusts the air conditioning terminal (10), the terminal speed regulating fan (10-1) can operate in four modes: high speed, medium speed, low speed and off, and the air conditioning terminal water valve (10-2) can operate in two modes: on and off; Intelligent ventilation control module, a programmable controller (2) controls the operating frequency of a classroom fan (12) through a frequency conversion controller (11); The mode selection module and the programmable controller (2) transmit the measured parameters and the on / off status to the touch screen (1), and the parameters are set through the touch screen.

2. The intelligent control system for classroom environment monitoring according to claim 1 is characterized in that: The temperature preset module can run automatically according to the preset value or manually.

3. The intelligent control system for classroom environment monitoring according to claim 1 is characterized in that: The remote intelligent lighting control module specifically calculates the target illumination value based on the number of people counted by the counting sensor and the lighting effect measured by the illumination sensor, and controls the number of lighting fixtures turned on through relays.

4. The intelligent control system for classroom environment monitoring according to claim 1 is characterized in that: The intelligent temperature and humidity control module specifically calculates the target temperature and humidity values ​​based on the number of people counted by the number sensor and the comfort parameters measured by the temperature and humidity sensor. The programmable controller then controls the wind speed and water flow switch of the air conditioning fan disc through the air conditioning control panel.

5. The intelligent control system for classroom environment monitoring according to claim 1 is characterized in that: The intelligent ventilation control module specifically calculates the demand for indoor fresh air volume based on the number of people counted by the counting sensor and the carbon dioxide concentration measurement data. The programmable controller then adjusts the operating frequency of the classroom fresh air fan through the frequency conversion controller.

6. The intelligent control system for classroom environment monitoring according to claim 1 is characterized in that: The touch screen can be controlled automatically or manually.

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