Intelligent system based on spray-air conditioner-illumination linkage control

Abstract

The invention relates to the technical field of environment monitoring, and specifically discloses an intelligent system based on spraying-air conditioning-illumination linkage control, an environment sensor detects indoor and outdoor environment parameters according to a fixed time interval, and transmits monitored data to a cloud server through a gateway; the cloud server receives and stores the environmental parameters monitored by the environmental sensor and the equipment control instruction; the control equipment calculates and outputs an equipment control instruction of a next monitoring period to the cloud server according to environmental parameters of a previous monitoring period based on a spraying-air conditioning-lighting three-system joint control strategy built in a control program, and recovers an equipment state from the cloud server; and the controller controls the running state of the terminal equipment according to the control instruction received by the cloud server. According to the intelligent system based on spraying-air conditioning-lighting linkage control, environment perception, cloud computing and intelligent adjustment are combined, the cooling and energy-saving effects are guaranteed, meanwhile, the water resource utilization efficiency is improved, and resource waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental monitoring, and more particularly to an intelligent system based on spray-air conditioner-lighting linkage control. Background Art

[0002] Transparent enclosures (such as glass curtain walls, daylighting roofs, transparent roofs, etc.) are prone to indoor overheating and glare problems due to their high solar radiation transmittance characteristics, which affect the thermal comfort of indoor occupants. To alleviate the above problems, spray systems are widely used. By evaporation, the surface temperature of the transparent enclosure is reduced and part of the solar radiation entering the room is blocked, thereby improving the indoor thermal environment and having a relatively small negative impact on indoor lighting.

[0003] Although the spray system provides an efficient, energy-saving, low-carbon, economical and pollution-free way to alleviate the thermal environment, the spray system requires a stable water source, regular equipment maintenance, and high water resource consumption. Therefore, intelligent control of it is extremely important.

[0004] In addition, currently, the air-conditioning system and the lighting system have achieved linkage control to optimize and regulate the building's light and thermal environment and reduce energy consumption. For example, Chinese Patent CN111059720A discloses an indoor physical environment comprehensive control system, which adjusts the operating states of terminal devices (natural ventilators, fans, push windows, electric sunshades, lamps, dehumidifiers, heaters, and air conditioners) to adjust the indoor sound environment, light environment, wind environment, and health environment in the order of "health-comfort-energy saving". Chinese Patent CN116430784A discloses an intelligent workstation energy-saving system based on TinyML. This system automatically adjusts the air-conditioning temperature and the lighting switch state according to the personnel distribution and the external environment state to reduce energy consumption. At the same time, the intelligent work card in front of the workstation serves as an auxiliary for office work, signing in and out.

[0005] Chinese Patent CN114153150A discloses an intelligent building energy-saving control system and method based on human body sensing. By dividing regions and time periods and combining the judgment of real-time external environmental parameters and their corresponding thresholds, it can simultaneously perform linkage control on multiple external intelligent subsystems such as lighting, air conditioning, and fresh air, achieving the purpose of high-efficiency energy saving and providing a safe, comfortable, and intelligent working environment. Chinese Patent CN113031457A discloses a smart ward control system and method, which integrates subsystems such as a fresh air system, an air conditioning system, an air quality monitoring system, a smart lighting system, an electric curtain control system, a security control system, and a constant temperature water control system. It uniformly monitors multiple wards through a master controller and performs linkage control between subsystems. Although the above patents have made remarkable progress in the intelligent linkage control of air conditioning and lighting, neither has incorporated a spray system into the intelligent control system. When a spray system is installed on a translucent enclosure structure, due to the cooling and sunshading effects generated by the spray system, it will affect the indoor light and heat environment and air conditioning energy consumption, and the traditional air conditioning-lighting control system will no longer be applicable. Due to the inability of multiple systems to cooperate efficiently, the adjustment effect is difficult to accurately match the actual needs, which may lead to an increase in energy consumption and the suboptimal adjustment effect of the light and heat environment of buildings with translucent enclosure structures. For example, when the spray system has already reduced the indoor air temperature of a building, the air conditioning system still operates excessively, causing unnecessary energy waste. Summary of the Invention

[0006] The object of the present invention is to provide an intelligent system based on spray-air conditioning-lighting linkage control. Aiming at the deficiencies of existing light and heat environment adjustment technologies, by constructing a three-system joint control strategy for spray-air conditioning-lighting and combining intelligent control technologies, it realizes the intelligent and coordinated control of the light and heat environment of buildings with translucent enclosure structures.

[0007] To achieve the above object, the present invention provides an intelligent system based on spray-air conditioning-lighting linkage control, including an environmental sensor, a cloud server, a control device, a controller, and a terminal device. The environmental sensor detects indoor and outdoor environmental parameters at fixed time intervals and transmits the monitored data to the cloud server through a gateway. The cloud server receives and stores the environmental parameters monitored by the environmental sensor and device control instructions. The control device calculates and outputs device control instructions for the next monitoring period to the cloud server based on the three-system joint control strategy for spray-air conditioning-lighting built into the control program, and retrieves the device status from the cloud server. The controller controls the operating status of the terminal device according to the control instructions received by the cloud server.

[0008] Preferably, both the cloud server and the controller are connected to the environmental monitoring sensor through a gateway. The control device is communicatively connected to the cloud server, and the controller is connected to the terminal device by wire or wirelessly.

[0009] Preferably, the environmental parameters include the outer surface temperature of the light-transmitting enclosure structure and the indoor new effective temperature and the indoor illuminance; The controller includes a spray water pump switch, a frequency converter, an infrared repeater, and a lamp switch; The terminal equipment includes a spray system, an air-conditioning system, and a lamp lighting system.

[0010] Preferably, the joint control strategy for the three systems of spray-air conditioning-lighting is specifically to adjust the indoor light and heat environment through a heat environment regulation module and a light environment regulation module; The heat environment regulation module monitors the outer surface temperature parameter T of the light-transmitting enclosure structure s , and calculates the outer surface cooling demand value ΔT out-required ; According to the outer surface temperature opening and closing preset value and the outer surface cooling prediction value ΔT out-predict , adjust the operating state of the spray system; By judging the indoor temperature parameter, according to the preset value of human comfort , adjust the operating state of the air-conditioning system.

[0011] Preferably, the regulation of the spray system includes on-off regulation and flow dynamic regulation. The on-off regulation is specifically as follows: If the outer surface temperature T of the light-transmitting enclosure structure in the current monitoring period s is greater than or equal to the start temperature T of the spray system spraying-on , then the spray system is started in the next monitoring period, and the single spray duration is set to 10 minutes; If the outer surface temperature T in the current monitoring period s is less than or equal to the shutdown temperature T of the spray system spraying-off , then the spray system is shut down in the next monitoring period.

[0012] Preferably, the start temperature T of the spray system spraying-on is 33.7 °C, and the shutdown temperature T of the spray system spraying-off is 22.6 °C.

[0013] Preferably, the flow dynamic regulation is specifically as follows: The flow rate gears of a single nozzle in the spray system are divided into three gears: high, medium, and low, which are 5.6 L / h, 4.6 L / h, and 4 L / h respectively. The default start flow rate of the spray system is medium gear. According to the outer surface cooling demand value ΔT in the current monitoring period out-required and the comparison result of the outer surface cooling prediction value ΔT out-predict , adjust the flow rate: If ΔT out-predict is close to ΔT out-required , that is, ΔTout-predict ∈ [0.9ΔT out-required , 1.1ΔT out-required , the flow rate gear remains unchanged; If ΔT out-predict <0.9ΔT out-required , the flow rate gear is increased by one; If ΔT out-predict >1.1ΔT out-required , the flow rate gear is decreased by one.

[0014] Preferably, the operating states of the air-conditioning system are divided into the air-conditioning system being off, low-frequency operation when the air-conditioning system is started, and high-frequency operation. When operating at low frequency, the corresponding air-conditioning cooling capacity is about 50-80% of the rated cooling capacity. When operating at high frequency, the corresponding air-conditioning cooling capacity is about 90-110% of the rated cooling capacity; The air-conditioning system regulation strategy is as follows: If the indoor temperature after the spray system is started > Threshold and the operating state of the air-conditioning system is off, the air-conditioning system will be started in the next monitoring cycle. Here, Threshold is the preset value for human comfort , taking 30°C; If the indoor temperature after the spray system is started > Threshold and the operating state of the air-conditioning system is low-frequency operation, the operating state will be adjusted to high-frequency operation in the next monitoring cycle; If the indoor temperature after the spray system is started ≤ Threshold and the operating state of the air-conditioning system is high-frequency operation, the operating state will be adjusted to low-frequency operation in the next monitoring cycle; If the indoor temperature after the spray system is started ≤ Threshold and the operating state of the air-conditioning system is low-frequency operation, the air-conditioning system will be turned off in the next monitoring cycle.

[0015] Preferably, the light environment regulation module determines the indoor illuminance parameter ILL by regulating the lighting system, and adjusts the operating state of the lighting system according to the illuminance preset value I Threshold . The lighting system regulation strategy is as follows: If the indoor brightness ILL>I Threshold , the lights will be turned off in the next monitoring cycle; If the indoor brightness ILL≤I Threshold , the lights will be turned on in the next monitoring cycle.

[0016] Therefore, the present invention adopts the above-mentioned intelligent system based on the linkage control of spray-air conditioning-lighting, and the beneficial effects are as follows: (1) The present invention proposes a three-system joint control strategy for spray-air conditioning-lighting of building transparent enclosures, and adopts intelligent control technology. Combining environmental perception, cloud computing and intelligent adjustment, it realizes the dynamic perception and precise control of the three systems of spray, air conditioning and lighting, and realizes the intelligent and coordinated control of the building's light and heat environment.

[0017] (2) The present invention can dynamically adjust the operating states of each system based on the real-time changes of indoor and outdoor environmental parameters, improve the accuracy and energy efficiency of light and heat environment adjustment. Especially, based on the model predictive control method, it accurately adjusts and controls the spray system. While ensuring the spray cooling effect, it reduces water resource consumption and improves the overall energy efficiency.

[0018] (3) The present invention adjusts the indoor light and heat environment through the thermal environment control module and the light environment control module, improving the indoor thermal comfort and visual comfort.

[0019] The technical solution of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0020] Figure 1 is the overall system block diagram of an embodiment of the intelligent system based on the linkage control of spray-air conditioning-lighting of the present invention; Figure 2 is the schematic flow chart of the spray-air conditioning-lighting joint control strategy of an embodiment of the intelligent system based on the linkage control of spray-air conditioning-lighting of the present invention. Detailed Embodiments

[0021] The technical solution of the present invention will be further described below through the drawings and embodiments.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meaning understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] Such asFigure 1 As shown in the figure, the present invention constructs an intelligent system based on the linkage control of spraying - air conditioning - lighting, which combines environmental perception, cloud computing and intelligent adjustment to realize the collaborative perception and dynamic adjustment of the spraying, air - conditioning and lighting systems. It includes environmental sensors, cloud servers, control devices, controllers and terminal devices. The cloud server and the controller are both connected to the environmental monitoring sensors through gateways. The control device is communicatively connected to the cloud server, and the controller is connected to the terminal device by wire or wirelessly.

[0024] The environmental sensors detect indoor and outdoor environmental parameters at fixed time intervals (the time interval between two monitoring cycles) and transmit the monitored data to the cloud server through the gateway. The cloud server receives and stores the environmental parameters monitored by the environmental sensors and device control instructions. The environmental parameters include the temperature of the outer surface of the light - transmitting enclosure structure, the indoor new effective temperature and indoor illuminance.

[0025] The control device receives the data transmitted by the environmental sensors from the cloud, calculates and outputs the device control instructions for the next monitoring cycle to the cloud server based on the joint control strategy of the spraying - air - conditioning - lighting three - system built in the control program, and retrieves the device status from the cloud server. The controller controls the operating status of the terminal device according to the control instructions received by the cloud server. The controller includes a spraying water pump switch and frequency converter, an infrared repeater and a lamp switch. The terminal devices include a spraying system, an air - conditioning system and a lamp lighting system.

[0026] As Figure 2 shown, the joint control strategy of the spraying - air - conditioning - lighting three - system proposed by the present invention enables the spraying, air - conditioning and lighting systems to work together through intelligent control and real - time sensor feedback, dynamically adjust the operating status of each system according to the changes in indoor and outdoor environmental parameters, and ensure more accurate and efficient regulation of the indoor light - heat environment. Specifically, the indoor light - heat environment is regulated through a thermal environment regulation module and a light environment regulation module.

[0027] The thermal environment regulation module monitors the temperature parameter T of the outer surface of the light - transmitting enclosure structure s and calculates the outer surface cooling demand value ΔT out-required ; adjusts the operating status of the spraying system according to the outer surface temperature opening and closing preset value and the outer surface cooling prediction value ΔT out-predict ; adjusts the operating status of the air - conditioning system by judging the indoor temperature parameter according to the preset value of human comfort .

[0028] The regulation of the operating status of the spraying system includes two aspects: opening and closing regulation and flow dynamic regulation. The opening and closing regulation is specifically as follows: If the temperature T of the outer surface of the light - transmitting enclosure structure in the current monitoring cycles Greater than or equal to the start temperature T of the spraying system spraying-on , then the spraying system is started in the next monitoring period, and the single spraying duration is set to 10 minutes; If the outer surface temperature T in the current monitoring period s is less than or equal to the shutdown temperature T of the spraying system spraying-off , then the spraying system is shut down in the next monitoring period.

[0029] Among them, the start temperature T of the spraying system spraying-on is 33.7 °C, and the shutdown temperature T of the spraying system spraying-off is 22.6 °C.

[0030] The specific dynamic regulation of the flow rate is as follows: The flow rate gears of a single nozzle in the spraying system are divided into three gears: high, medium, and low, which are 5.6 L / h, 4.6 L / h, and 4 L / h respectively. The default start flow rate of the spraying system is medium gear. According to the outer surface cooling demand value ΔT out-required and the predicted outer surface cooling value ΔT out-predict in the current monitoring period, the flow rate is adjusted according to the comparison result: If ΔT out-predict is close to ΔT out-required , that is, ΔT out-predict ∈[0.9ΔT out-required , 1.1ΔT out-required , then the flow rate gear remains unchanged; If ΔT out-predict <0.9ΔT out-required , then the flow rate gear is increased by one level; If ΔT out-predict >1.1ΔT out-required , then the flow rate gear is decreased by one level.

[0031] The outer surface cooling demand value ΔT in the current monitoring period out-required is obtained by calculating the difference between the outer surface temperature in the previous monitoring period and the system shutdown temperature T spraying-off ; the predicted outer surface cooling value ΔT out-predict is calculated according to the outer surface cooling prediction model, and the calculation formula is shown in Equation (2): (1); (2); In the formula, is the outdoor wet bulb globe temperature, T s is the outer surface temperature of the light-transmitting enclosure structure, I sol is the outdoor solar radiation intensity, w outis the outdoor wind speed. Among them, The calculation formula is as follows: (3).

[0032] In the formula, T air-out is the outdoor air temperature, 𝝋 out is the relative humidity.

[0033] Air conditioning system regulation: The operating states of the air conditioning system are divided into the air conditioning system being turned off, low-frequency operation when the air conditioning system starts, and high-frequency operation. When operating at low frequency, the corresponding air conditioning cooling capacity is about 50 - 80% of the rated cooling capacity. When operating at high frequency, the corresponding air conditioning cooling capacity is about 90 - 110% of the rated cooling capacity.

[0034] The air conditioning system regulation strategy is as follows: If the indoor > Threshold after the spray system starts and the operating state of the air conditioning system is off, then start the air conditioning system (low-frequency operation) in the next monitoring cycle. Here, Threshold is the preset value for human comfort, taking 30°C.

[0035] If the indoor > Threshold after the spray system starts and the operating state of the air conditioning system is low-frequency operation, then adjust the operating state to high-frequency operation in the next monitoring cycle.

[0036] If the indoor ≤ Threshold after the spray system starts and the operating state of the air conditioning system is high-frequency operation, then adjust the operating state to low-frequency operation in the next monitoring cycle.

[0037] If the indoor ≤ Threshold after the spray system starts and the operating state of the air conditioning system is low-frequency operation, then turn off the air conditioning system in the next monitoring cycle.

[0038] The light environment regulation mode is achieved by regulating the lighting system. By judging the indoor illuminance parameter ILL and adjusting the operating state of the lighting system according to the illuminance preset value I Threshold (the minimum brightness threshold is 150 Lx), the lighting system regulation strategy is as follows: If the indoor brightness ILL > I Threshold , then turn off the lights in the next monitoring cycle; If the indoor brightness ILL ≤ I Threshold, then turn on the light in the next monitoring cycle.

[0039] Therefore, the present invention adopts the above-mentioned intelligent system based on spray-air conditioner-lighting linkage control. By establishing a three-system joint control strategy and dynamically adjusting the operating states of each system according to the changes in indoor and outdoor environmental parameters, the efficient coordination of the air conditioner, lighting, and spray systems is achieved, and the accuracy and energy efficiency of the light and heat environment regulation are improved.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An intelligent system based on spray-air conditioning-lighting linkage control, characterized in that: It includes an environmental sensor, a cloud server, a control device, a controller and a terminal device. The environmental sensor detects indoor and outdoor environmental parameters at fixed time intervals and transmits the monitored data to the cloud server through a gateway. The cloud server receives and stores the environmental parameters monitored by the environmental sensor and device control instructions. Based on the spray-air conditioner-lighting three-system joint control strategy built into the control program, the control device calculates and outputs the device control instructions for the next monitoring period to the cloud server according to the environmental parameters of the previous monitoring period, and retrieves the device status from the cloud server. The controller controls the operating status of the terminal device according to the control instructions received by the cloud server.

2. The intelligent system based on spray-air conditioner-lighting linkage control according to claim 1, wherein: Both the cloud server and the controller are connected to the environmental monitoring sensor through a gateway. The control device is communicatively connected to the cloud server, and the controller is connected to the terminal device by wire or wirelessly.

3. An intelligent system based on spray-air conditioning-lighting linkage control according to claim 2, characterized in that: The environmental parameters include the temperature of the outer surface of the transparent building envelope and the indoor new effective temperature and indoor illuminance; The controller includes a spray water pump switch and frequency converter, an infrared repeater and a lamp switch. The terminal device includes a spray system, an air conditioning system and a lamp lighting system.

4. An intelligent system based on spray-air conditioning-lighting linkage control according to claim 3, characterized in that: The spray-air conditioner-lighting three-system joint control strategy specifically adjusts the indoor light and heat environment through a thermal environment regulation module and a light environment regulation module. The thermal environment control module monitors the temperature parameter T of the outer surface of the transparent envelope structure s and calculates the cooling demand value ΔT of the outer surface out-required ; Based on the preset value for opening and closing according to the outer surface temperature and the predicted value ΔT of the outer surface temperature drop out-predict , adjust the operating state of the spray system; By judging the indoor temperature parameter, according to the preset value for human comfort, adjust the operating state of the air conditioning system.

5. An intelligent system based on spray-air conditioner-lighting linkage control according to claim 4, characterized in that: The regulation of the spray system includes on-off regulation and flow dynamic regulation. The on-off regulation is specifically as follows: If the temperature T of the outer surface of the transparent envelope structure in the current monitoring period s is greater than or equal to the starting temperature T of the spraying system spraying-on , then start the spraying system in the next monitoring period, and set the single spraying duration to 10 minutes; If the outer surface temperature T in the current monitoring period s is less than or equal to the shutdown temperature T of the spray system spraying-off , the spray system will be shut down in the next monitoring period.

6. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 5, wherein: The starting temperature T of the spray system spraying-on is 33.7 °C, and the shutdown temperature T of the spray system spraying-off is 22.6 °C.

7. An intelligent system based on spray-air conditioning-lighting linkage control according to claim 5, characterized in that: The flow dynamic regulation is specifically as follows: The flow rate of a single nozzle in the spray system is divided into three gears: high, medium, and low, which are 5.6 L / h, 4.6 L / h, and 4 L / h respectively. The default starting flow rate of the spray system is medium gear. According to the external surface cooling demand value ΔT out-required and the predicted value of external surface cooling ΔT out-predict in the current monitoring period, the flow rate is adjusted according to the comparison result: If ΔT out-predict is close to ΔT out-required , that is, ΔT out-predict ∈[0.9ΔT out-required , 1.1ΔT out-required , the flow rate gear remains unchanged; If ΔT out-predict <0.9ΔT out-required , then increase one flow rate gear; If ΔT out-predict > 1.1ΔT out-required , then lower the flow rate by one level.

8. An intelligent system based on spray-air conditioning-lighting linkage control according to claim 4, characterized in that: The operating status of the air conditioning system is divided into the air conditioning system being off, low-frequency operation when the air conditioning system starts, and high-frequency operation. When operating at low frequency, the corresponding air conditioning cooling capacity is about 50-80% of the rated cooling capacity. When operating at high frequency, the corresponding air conditioning cooling capacity is about 90-110% of the rated cooling capacity. The control strategy of the air conditioning system is as follows: If the indoor temperature is higher than the set value after the spray system is started and the operating state of the air-conditioning system is off, the air-conditioning system will be started in the next monitoring cycle. Here, > Threshold and the operating state of the air-conditioning system is off, the air-conditioning system will be started in the next monitoring cycle. Here, Threshold is the preset value for human comfort , taking 30°C; If the indoor environment after the spray system is started > Threshold and the operating state of the air conditioning system is low-frequency operation, then the operating state is adjusted to high-frequency operation in the next monitoring cycle; If the indoor environment after the spray system is started ≤ Threshold and the operating state of the air-conditioning system is high-frequency operation, then the operating state is adjusted to low-frequency operation in the next monitoring cycle; If the indoor environment after the spray system is started ≤ Threshold and the operating state of the air conditioning system is low-frequency operation, the air conditioning system will be turned off in the next monitoring cycle.

9. An intelligent system based on spray-air conditioner-lighting linkage control according to claim 4, characterized in that: The light environment control module determines the indoor illuminance parameter ILL by regulating the lighting system, and adjusts the operating state of the lighting system according to the preset illuminance value I Threshold The lighting system regulation strategy is as follows: If the indoor brightness ILL > I Threshold , the lights will be turned off in the next monitoring period; If the indoor brightness ILL ≤ I Threshold , then turn on the light in the next monitoring cycle.

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