An intelligent system based on spray-air conditioning-lighting linkage control

Abstract

The present invention relates to the field of environmental monitoring technology and specifically discloses an intelligent system based on spray-air-conditioning-lighting linkage control. Environmental sensors detect indoor and outdoor environmental parameters at fixed time intervals and transmit the monitored data to a cloud server via a gateway. The cloud server receives and stores the environmental parameters and device control instructions monitored by the environmental sensors. A control device, based on a built-in spray-air-conditioning-lighting three-system linkage control strategy, calculates and outputs device control instructions for the next monitoring cycle to the cloud server based on the environmental parameters of the previous monitoring cycle, and retrieves device status from the cloud server. A controller controls the operating status of terminal devices based on the control instructions received from the cloud server. The present invention utilizes the aforementioned intelligent system based on spray-air-conditioning-lighting linkage control, combining environmental sensing, cloud computing, and intelligent regulation to ensure cooling and energy-saving effects while improving water resource utilization efficiency and reducing resource waste.

Description

Technical Field

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

[0002] Due to their high solar transmittance, translucent building envelopes (such as glass curtain walls, skylights, and transparent roofs) can easily lead to indoor overheating and glare, impacting thermal comfort for occupants. To alleviate these issues, misting systems are widely used. These systems reduce the surface temperature of translucent building envelopes through evaporation and partially block incoming solar radiation, improving the indoor thermal environment with minimal 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, it requires a stable water source, regular equipment maintenance, and high water consumption, so intelligent control of the spray system is extremely important.

[0004] Furthermore, air conditioning and lighting systems are now linked for optimal control of the building's light and heat environment and reduced energy consumption. For example, Chinese patent CN111059720A discloses a comprehensive indoor physical environment control system. This system adjusts the indoor acoustic, light, wind, and health environments in the order of "health-comfort-energy saving" by adjusting the operating status of terminal equipment (natural ventilators, fans, sliding windows, electric sunshades, lamps, dehumidifiers, heaters, and air conditioners). Chinese patent CN116430784A discloses a TinyML-based smart workstation energy-saving system. This system automatically adjusts air conditioning temperature and lighting status based on occupancy and external environmental conditions to reduce energy consumption. Furthermore, smart workstation badges at workstations facilitate office work and sign-in and sign-out.

[0005] Chinese patent CN114153150A discloses an intelligent building energy-saving control system and method based on human body sensing. By dividing the area and time period, combining the external environmental real-time parameters and their corresponding thresholds, it can simultaneously carry out linkage control of multiple external intelligent subsystems such as lighting, air conditioning and fresh air, achieving the goal of high efficiency and energy saving, and providing a safe, comfortable and intelligent working environment. Chinese patent CN113031457A discloses an intelligent ward control system and method, which integrates subsystems such as fresh air system, air conditioning system, air quality monitoring system, intelligent lighting system, electric curtain control system, security control system, constant temperature water control system, etc., and uses a master controller to uniformly monitor multiple wards and linkage control between sub-control systems. Although the above patents have made significant progress in the intelligent linkage control of air conditioning and lighting, none of them incorporates the spray system into the intelligent control system. When a spray system is installed on a light-transmitting enclosure structure, the cooling and shading effects generated by the spray system 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. Because multiple systems in the misting system don't coordinate efficiently, the regulation effect can't be precisely matched to actual needs. This can lead to increased energy consumption and suboptimal light and heat regulation in buildings with translucent envelope structures. For example, even when the misting system has lowered the indoor air temperature, the air conditioning system may still be over-operating, resulting in unnecessary energy waste. Summary of the Invention

[0006] The purpose of the present invention is to provide an intelligent system based on the linkage control of spraying, air conditioning and lighting. In view of the shortcomings of the existing light and thermal environment regulation technology, by constructing a three-system linkage control strategy of spraying, air conditioning and lighting, and combining it with intelligent control technology, it realizes the intelligent and coordinated regulation of the light and thermal environment of buildings with translucent enclosure structures.

[0007] To achieve the above objectives, the present invention provides an intelligent system based on spray-air conditioning-lighting linkage control, comprising 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 via a gateway. The cloud server receives and stores the environmental parameters monitored by the environmental sensor and the device control instructions.

[0008] Based on the built-in joint control strategy of the spray-air-conditioning-lighting system in the control program, the control device calculates and outputs the device control instructions for the next monitoring cycle according to the environmental parameters of the previous monitoring cycle to the cloud server, 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 from the cloud server.

[0009] Preferably, the cloud server and the controller are connected to the environmental monitoring sensor via a gateway, the control device is communicatively connected to the cloud server, and the controller is connected to the terminal device via wired or wireless communication.

[0010] Preferably, the environmental parameters include the outer surface temperature of the light-transmitting enclosure structure, the indoor new effective temperature and indoor illumination;

[0011] The controller includes a spray pump switch and inverter, an infrared transponder and a lamp switch;

[0012] Terminal equipment includes spray systems, air conditioning systems and lighting systems.

[0013] Preferably, the spray-air conditioning-lighting three-system joint control strategy specifically adjusts the indoor light and heat environment through the thermal environment control module and the light environment control module;

[0014] The thermal environment control module monitors the temperature parameter T of the outer surface of the light-transmitting enclosure structure. s , and calculate the external surface cooling demand value ΔT out-required ;

[0015] According to the preset value of the external surface temperature and the external surface temperature drop prediction value ΔT out-predict , adjust the operating status of the spray system;

[0016] By judging the indoor Temperature parameters, based on human comfort Preset value, adjust the operating status of the air conditioning system.

[0017] Preferably, the spray system control includes on-off control and flow dynamic control, and the on-off control is specifically:

[0018] If the outer surface temperature of the light-transmitting enclosure structure in the current monitoring period is T s Greater than or equal to the starting temperature T of the spray system spraying-on , then the spray system is started in the next monitoring cycle, and the single spray duration is set to 10 minutes;

[0019] If the external surface temperature T s 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 cycle.

[0020] Preferably, the starting temperature of the spray system is T spraying-on The shutdown temperature of the spray system is 33.7℃. spraying-off It is 22.6℃.

[0021] Preferably, the dynamic flow control is specifically as follows:

[0022] The flow rate of a single nozzle in the spray system is divided into three gears: high, medium and low, which are 5.6L / h, 4.6L / h and 4L / h. The default starting flow rate of the spray system is medium. According to the external surface cooling demand value ΔT in the current monitoring period, out-required and the predicted value of external surface temperature drop ΔT out-predict Comparison results of adjusted flow rates:

[0023] If ΔT out-predict Close to ΔT out-required , that is, ΔT out-predict ∈[0.9ΔT out-required , 1.1ΔT out-required ], the flow rate gear remains unchanged;

[0024] If ΔT out-predict <0.9ΔT out-required , then increase the flow rate by one gear;

[0025] If ΔT out-predict >1.1ΔT out-required , then lower the flow rate by one gear.

[0026] Preferably, the operating state of the air conditioning system is divided into low-frequency operation and high-frequency operation when the air conditioning system is turned off and started. The cooling capacity of the air conditioning corresponding to the low-frequency operation is approximately 50% to 80% of the rated cooling capacity, and the cooling capacity of the air conditioning corresponding to the high-frequency operation is approximately 90% to 110% of the rated cooling capacity;

[0027] The air conditioning system control strategy is as follows:

[0028] If the spray system is started, > Threshold If the air conditioning system is in the off state, the air conditioning system will be started in the next monitoring cycle. Threshold Comfortable for the human body The default value is 30℃;

[0029] If the spray system is started, > Threshold If the operating state of the air conditioning system is low-frequency operation, the operating state is adjusted to high-frequency operation in the next monitoring cycle;

[0030] If the spray system is started, ≤ Threshold If the operating state of the air conditioning system is high-frequency operation, the operating state is adjusted to low-frequency operation in the next monitoring cycle;

[0031] If the spray system is started, ≤ Threshold If the operating state of the air-conditioning system is low-frequency operation, the air-conditioning system will be shut down in the next monitoring cycle.

[0032] Preferably, the light environment control module determines the indoor illumination parameter ILL by regulating the lighting system, and determines the indoor illumination parameter ILL according to the preset illumination value I Threshold Adjust the operating status of the lighting system. The lighting system control strategy is as follows:

[0033] If the indoor brightness ILL>I Threshold , then turn off the light in the next monitoring cycle;

[0034] If the indoor brightness ILL≤I Threshold , then turn on the light in the next monitoring cycle.

[0035] Therefore, the present invention adopts the above-mentioned intelligent system based on spray-air conditioning-lighting linkage control, and the beneficial effects are as follows:

[0036] (1) The present invention proposes a joint control strategy for the three systems of spraying, air conditioning and lighting for the light-transmitting envelope structure of a building, and adopts intelligent control technology, combined with environmental perception, cloud computing and intelligent adjustment, to achieve dynamic perception and precise control of the three systems of spraying, air conditioning and lighting, and realize intelligent and coordinated control of the light and heat environment of the building.

[0037] (2) The present invention can dynamically adjust the operating status of each system based on the real-time changes in indoor and outdoor environmental parameters, thereby improving the accuracy and energy efficiency of light and heat environment regulation. In particular, the spray system can be accurately adjusted and regulated based on the model predictive control method, ensuring the spray cooling effect while reducing water resource consumption and improving overall energy efficiency.

[0038] (3) The present invention adjusts the indoor light and heat environment through the thermal environment control module and the light environment control module to improve the indoor thermal comfort and visual comfort.

[0039] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is an overall system block diagram of an embodiment of an intelligent system based on spray-air conditioning-lighting linkage control of the present invention;

[0041] Figure 2 The present invention is a schematic diagram of a spray-air-conditioning-lighting joint control strategy flow in an intelligent system embodiment based on spray-air-conditioning-lighting joint control. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0043] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0044] like Figure 1 As shown, the present invention constructs an intelligent system based on spray-air conditioning-lighting linkage control, combining environmental perception, cloud computing and intelligent adjustment to achieve collaborative perception and dynamic adjustment of spray, air conditioning and lighting systems, including environmental sensors, cloud servers, control devices, controllers and terminal devices. The cloud server and controller are connected to the environmental monitoring sensor through a gateway, the control device is connected to the cloud server for communication, and the controller is connected to the terminal device via wired or wireless communication.

[0045] 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 equipment control instructions. The environmental parameters include the outer surface temperature of the light-transmitting enclosure structure, the new effective temperature of the room, and the temperature of the room. and indoor illumination.

[0046] The control device receives data transmitted by environmental sensors from the cloud, and based on the built-in joint control strategy of the spray-air-conditioning-lighting three-system, calculates and outputs the equipment control instructions for the next monitoring cycle according to the environmental parameters of the previous monitoring cycle to the cloud server, and recovers the equipment status from the cloud server; the controller controls the operating status of the terminal device according to the control instructions received from the cloud server, and the controller includes a spray pump switch and inverter, an infrared repeater and a lamp switch; the terminal device includes a spray system, an air-conditioning system and a lighting system.

[0047] like Figure 2As shown in the figure, the proposed three-system joint control strategy of spraying, air conditioning, and lighting uses intelligent control and real-time sensor feedback to enable the spraying, air conditioning, and lighting systems to work together. The operating status of each system is dynamically adjusted according to changes in indoor and outdoor environmental parameters, ensuring more accurate and efficient regulation of the indoor light and heat environment. Specifically, the indoor light and heat environment is regulated through the thermal environment control module and the light environment control module.

[0048] The thermal environment control module monitors the temperature parameter T of the outer surface of the light-transmitting enclosure structure. s , and calculate the external surface cooling demand value ΔT out-required ; According to the preset value of the external surface temperature and the external surface temperature drop prediction value ΔT out-predict , adjust the operating status of the spray system; by judging the indoor Temperature parameters, based on human comfort Preset value, adjust the operating status of the air conditioning system.

[0049] The operation status control of the spray system includes two aspects: opening and closing control and dynamic flow control. The opening and closing control is specifically as follows:

[0050] If the outer surface temperature of the light-transmitting enclosure structure in the current monitoring period is T s Greater than or equal to the starting temperature T of the spray system spraying-on , then the spray system is started in the next monitoring cycle, and the single spray duration is set to 10 minutes;

[0051] If the external surface temperature T s 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 cycle.

[0052] Among them, the starting temperature of the spray system is T spraying-on The shutdown temperature of the spray system is 33.7℃. spraying-off It is 22.6℃.

[0053] Dynamic traffic control is as follows:

[0054] The flow rate of a single nozzle in the spray system is divided into three levels: high, medium and low, which are 5.6L / h, 4.6L / h and 4L / h respectively. The default starting flow rate of the spray system is medium. According to the external surface cooling demand value ΔT in the current monitoring period out-required and the predicted value of external surface temperature drop ΔT out-predict Comparison results of adjusted flow rates:

[0055] If ΔT out-predict Close to ΔT out-required , that is, ΔT out-predict ∈[0.9ΔT out-required , 1.1ΔT out-required], the flow rate gear remains unchanged;

[0056] If ΔT out-predict <0.9ΔT out-required , then increase the flow rate by one gear;

[0057] If ΔT out-predict >1.1ΔT out-required , then lower the flow rate by one gear.

[0058] External surface cooling demand value ΔT in the current monitoring period out-required By calculating the external surface temperature of the last monitoring cycle and the system shutdown temperature T spraying-off The difference is obtained, see formula (1); the predicted value of external surface temperature drop ΔT out-predict According to the external surface cooling prediction model, the calculation formula is shown in formula (2):

[0059] (1);

[0060] (2);

[0061] Where, 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 out is the outdoor wind speed. The calculation formula is as follows:

[0062] (3).

[0063] Where, T air-out is the outdoor air temperature, out is the relative humidity.

[0064] Air conditioning system control:

[0065] The operating states of the air-conditioning system are divided into low-frequency operation when the air-conditioning system is turned off and when the air-conditioning system is started, and high-frequency operation. The corresponding air-conditioning cooling capacity during low-frequency operation is approximately 50~80% of the rated cooling capacity, and the corresponding air-conditioning cooling capacity during high-frequency operation is approximately 90~110% of the rated cooling capacity.

[0066] The air conditioning system control strategy is as follows:

[0067] If the spray system is started, > ThresholdIf the air conditioning system is in the off state, the air conditioning system will be started in the next monitoring cycle (low frequency operation). Threshold Comfortable for the human body The default value is 30℃.

[0068] If the spray system is started, > Threshold If 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 period.

[0069] If the spray system is started, ≤ Threshold If 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 period.

[0070] If the spray system is started, ≤ Threshold If the operating state of the air-conditioning system is low-frequency operation, the air-conditioning system will be shut down in the next monitoring cycle.

[0071] The light environment control model is realized by controlling the lighting system, by judging the indoor illumination parameter ILL, according to the illumination preset value I Threshold (Minimum brightness threshold 150 Lx) Adjust the operating status of the lighting system. The lighting system control strategy is as follows:

[0072] If the indoor brightness ILL>I Threshold , then turn off the light in the next monitoring cycle;

[0073] If the indoor brightness ILL≤I Threshold , then turn on the light in the next monitoring cycle.

[0074] Therefore, the present invention adopts the above-mentioned intelligent system based on spray-air conditioning-lighting linkage control. By establishing a three-system joint control strategy, the operating status of each system is dynamically adjusted according to changes in indoor and outdoor environmental parameters, thereby achieving efficient coordination of air conditioning, lighting and spray systems, and improving the accuracy and energy efficiency of light and heat environment regulation.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to 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 by: It includes environmental sensors, cloud servers, control devices, controllers and terminal devices. The environmental sensors detect indoor and outdoor environmental parameters at fixed time intervals 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; Environmental parameters include the external surface temperature of the light-transmitting envelope structure, the new effective indoor temperature ET*, and the indoor illumination; The controller includes a spray pump switch and inverter, an infrared transponder and a lamp switch; Terminal equipment includes spray systems, air conditioning systems and lighting systems; Based on the three-system joint control strategy of spraying, air conditioning, and lighting built into the control program, the control device calculates and outputs the device control instructions for the next monitoring cycle based on the environmental parameters of the previous monitoring cycle to the cloud server, and retrieves the device status from the cloud server. The controller controls the operating status of the terminal device based on the control instructions received from the cloud server. The three-system joint control strategy of spraying, air conditioning and lighting specifically regulates the indoor light and heat environment through the thermal environment control module and the light environment control module; The thermal environment control module monitors the temperature parameter T of the outer surface of the light-transmitting enclosure structure. s , and calculate the external surface cooling demand value ΔT out-required ; According to the preset value of the external surface temperature and the external surface temperature drop prediction value ΔT out-predict , adjust the operating status of the spray system; By judging the indoor ET* temperature parameters, the operating status of the air-conditioning system is adjusted according to the ET* preset value that is comfortable for the human body.

2. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 1, characterized in that: The cloud server and controller are connected to the environmental monitoring sensor through the gateway, the control device is connected to the cloud server through communication, and the controller is connected to the terminal device through wired or wireless communication.

3. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 1, characterized in that: Spray system control includes on-off control and flow dynamic control. The on-off control is specifically as follows: If the outer surface temperature of the light-transmitting enclosure structure in the current monitoring period is T s Greater than or equal to the starting temperature T of the spray system spraying-on , then the spray system is started in the next monitoring cycle, and the single spray duration is set to 10 minutes; If the external surface temperature T s 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 cycle.

4. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 3, characterized in that: Start-up temperature T of the spray system spraying-on The shutdown temperature of the spray system is 33.7℃. spraying-off It is 22.6℃.

5. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 3, characterized in that: Dynamic traffic control is as follows: The flow rate of a single nozzle in the spray system is divided into three gears: high, medium and low, which are 5.6L / h, 4.6L / h and 4L / h. The default starting flow rate of the spray system is medium. According to the external surface cooling demand value ΔT in the current monitoring period, out-required and the predicted value of external surface temperature drop ΔT out-predict Comparison results of adjusted flow rates: If 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 the flow rate by one gear; If ΔT out-predict >1.1ΔT out-required , then lower the flow rate by one gear.

6. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 1, characterized in that: The operating status of the air conditioning system is divided into low-frequency operation and high-frequency operation when the air conditioning system is turned off and started. The corresponding cooling capacity of the air conditioning in low-frequency operation is 50-80% of the rated cooling capacity, and the corresponding cooling capacity of the air conditioning in high-frequency operation is 90-110% of the rated cooling capacity; The air conditioning system control strategy is as follows: If the spray system is started, If the air conditioning system is in the off state, the air conditioning system will be started in the next monitoring cycle. The ET* preset value for human comfort is 30℃; If the spray system is started, If the operating state of the air conditioning system is low-frequency operation, the operating state is adjusted to high-frequency operation in the next monitoring cycle; If the spray system is started, If the operating state of the air conditioning system is high-frequency operation, the operating state is adjusted to low-frequency operation in the next monitoring cycle; If the spray system is started, If the operating state of the air-conditioning system is low-frequency operation, the air-conditioning system will be shut down in the next monitoring cycle.

7. The intelligent system based on spray-air conditioning-lighting linkage control according to claim 1, characterized in that: The light environment control module determines the indoor illumination parameter ILL by regulating the lighting system, and Threshold Adjust the operating status of the lighting system. The lighting system control strategy is as follows: If the indoor brightness ILL>I Threshold , then turn off the light in the next monitoring cycle; If the indoor brightness ILL≤I Threshold , then turn on the light in the next monitoring cycle.

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