Cooperative control system for indoor environment adjusting system
Through the distributed environmental sensor network and improved indoor environment model, combined with the influence of different materials, dynamically adjust the indoor environment parameters, the problem of lack of a collaborative mechanism for indoor environment control in the existing technology is solved, and efficient environmental control and condensation prevention are achieved.
Patent Information
- Application Number
- CN202510485023.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2025-06-13
AI Technical Summary
The existing indoor environment control system lacks a coordinated mechanism, making it difficult to efficiently control temperature, humidity and TVOC, and is prone to condensation problems.
A distributed environmental sensor network is used to obtain multiple environmental parameters, establish an improved indoor environment model, take into account the influence of different materials, and coordinate the control through the main control unit to dynamically adjust the temperature, wind speed and dehumidification output power to prevent condensation.
It realizes efficient coordinated control of indoor temperature, humidity and TVOC, avoids condensation, and improves the comfort and energy efficiency of the indoor environment.
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Figure CN120140879A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of environmental regulation and control, and particularly to a collaborative control system for an indoor environmental regulation system. Background Art
[0002] The application of intelligent building systems in indoor environmental control has become a prominent research direction in the building field, providing new ways to improve the comfort of living and working environments, enhance energy efficiency, and promote sustainable development. In this field, intelligent building systems have achieved intelligent adjustment of indoor environmental parameters, including temperature, humidity, lighting, ventilation, etc., through the introduction of advanced technologies and automated control means, thereby creating a more pleasant living and working environment for occupants.
[0003] Existing indoor environmental control mostly adopts a discrete control system, that is, independent temperature and humidity controllers, fresh air units, and dehumidification equipment subsystems trigger actions through simple thresholds, lacking a coordination mechanism. For discrete control, the prior art CN119045581A proposes a centralized system that integrates multiple modules such as dynamic temperature and humidity adjustment, air quality monitoring and adjustment, sound environment control, lighting adjustment, microclimate control in the movement area, and emergency response. Through a centralized intelligent control platform, the system can monitor and automatically adjust the environmental parameters in the stadium in real time.
[0004] To improve the degree of intelligence, the prior art has also proposed solutions integrating AI. For example, CN118935701A provides an AI indoor environmental regulation system and method, including an emotion analysis module, a physical condition analysis module, and an indoor environmental regulation module; the emotion analysis module is used to analyze the user's emotion in real time through the data collected by the mobile phone terminal, and the physical condition analysis module is used to analyze the user's physical condition through the data collected by the mobile phone terminal; the indoor environment adjustment module adjusts the indoor environment according to the user's emotion and physical condition. Summary of the Invention
[0005] To solve the above technical problems, the present invention provides an efficient control system for an indoor environmental regulation system, which can achieve efficient control of indoor temperature, humidity, and TVOC (total volatile organic compounds) by combining different indoor materials, and at the same time ensure that there is no condensation in the room.
[0006] In a first aspect, the indoor multi-parameter regulation collaborative control system provided by the present invention specifically includes:
[0007] Indoor distributed environmental parameter acquisition unit, specifically, temperature and humidity sensors, carbon dioxide concentration sensors, TVOC detection sensors, and air flow sensors are set at each corner of the indoor area to obtain multiple environmental parameters such as the current indoor air temperature and humidity, carbon dioxide concentration, TVOC concentration, and air flow velocity V.
[0008] Indoor environmental model establishment unit, based on multiple environmental parameters, indoor condensation rate, predicted indoor surface condensation temperature, and indoor surface area, an indoor environmental model is established; considering the different materials of the room floor and wall surfaces, the indoor environmental model S is improved, and the indoor environmental model is established as follows:
[0009]
[0010] Among them, M is the indoor condensation rate, T is the average indoor air temperature, pa is the indoor water vapor pressure, T surface is the predicted indoor surface condensation temperature, A is the indoor surface area, and V is the indoor air flow velocity.
[0011] Among them, M is the indoor condensation rate, and the specific calculation formula is as follows:
[0012] S is the indoor effective condensation surface area, T and T surface are the indoor air temperature and the predicted indoor surface condensation temperature respectively, R t is the total thermal resistance of the distributed indoor surface material, RH is the indoor relative humidity, P is the indoor pressure value, f(θ,σ) is the indoor surface characteristic correction parameter, and k is a constant. In the present invention, considering the influence of different materials indoors, to ensure no condensation, f(θ,σ) = cos 2 θ·σ -0.3 , θ is the hydrophobicity, and σ is the roughness of the indoor surface material.
[0013] Among them, considering the differences in different indoor areas, the present invention proposes an improved calculation method for T surface where T is the average value of the distributed indoor temperature, T is obtained by averaging the temperatures obtained at each corner of the indoor area, φ is obtained by averaging the humidities obtained at each corner of the indoor area, T is the predicted condensation temperature, and T surface≥ is the set safety margin (the value ranges from 2 - 4 °C). safe
[0014] Main control unit, based on the output value of the indoor distributed environmental model, determines the interval in which the current output is the model output value, and combines the current indoor temperature and wind speed judgment thresholds to determine the indoor temperature adjustment output power, exhaust fan wind speed power, and dehumidification output power; further, a timing process is set, and the main control process completes the coordinated control of the indoor environment every certain period of time to achieve real-time dynamic control of the environmental parameters.
[0015] A system display unit for visually displaying the result data of the above-mentioned multiple units. Specifically, it includes distributed environment parameters, control parameters, and adjusted output power.
[0016] In a second aspect, the present invention provides a method for coordinated control of multi-parameter adjustment in an indoor environment, specifically including the following steps:
[0017] Obtaining indoor distributed environment parameters. Specifically, temperature and humidity sensors, carbon dioxide concentration sensors, TVOC detection sensors, and airflow sensors are set at each corner of the indoor environment to obtain multiple environmental parameters such as the current indoor air temperature, humidity, carbon dioxide concentration, TVOC concentration, and air velocity V.
[0018] Establishing an indoor distributed environment model. Considering the different materials of the room floor and wall surfaces, the indoor environment model S is improved, and an indoor environment model is established based on multiple environmental parameters, indoor condensation rate, predicted indoor surface condensation temperature, and indoor surface area.
[0019]
[0020] Among them, M is the indoor condensation rate, T is the average indoor air temperature, pa is the indoor water vapor pressure, T surface is the predicted indoor surface condensation temperature, A is the indoor surface area, and V is the indoor air velocity.
[0021] That is, where M is the indoor condensation rate, and the specific calculation formula is as follows:
[0022] S is the effective indoor condensation surface area, T and T surface are the indoor air temperature and the predicted indoor surface condensation temperature respectively, R t is the total thermal resistance of the distributed indoor surface material, RH is the relative humidity, P is the indoor pressure value, f(θ,σ) is the indoor surface characteristic correction parameter, and k is a constant. In the present invention, considering the influence of different materials indoors, to ensure no condensation, f(θ,σ) = cos 2 θ·σ -0.3 , θ is the hydrophobicity, and σ is the roughness of the indoor surface material.
[0023] Among them, considering the differences in different indoor areas, the present invention proposes an improved calculation method for T surface where T is the average value of the distributed indoor temperature, T is obtained by averaging the temperatures obtained at each corner of the indoor environment, φ is obtained by averaging the humidities obtained at each corner of the indoor environment, T surface≥ is the predicted condensation temperature, and T safe is the set safety margin (with a value of 2 - 4 °C).
[0024] The main control processing step is to judge the interval where the current output is the output value of the indoor distributed environment model based on the output value of the indoor distributed environment model, and determine the output power of the indoor temperature adjustment, the wind speed power of the exhaust fan, and the dehumidification output power by combining the temperature and wind speed judgment thresholds in the current indoor environment;
[0025] Furthermore, set up timed processing. The main control processing completes the collaborative control of the indoor environment every certain period of time to achieve real-time dynamic control of environmental parameters.
[0026] The result display processing step is used to visually display the result data of the above-mentioned multiple units, specifically including distributed environmental parameters, control parameters, and adjusted output power.
[0027] The embodiments of the present invention have the following technical effects:
[0028] 1. The present invention uses distributed environmental sensors to establish an indoor distributed environment model based on the obtained current environmental parameters, and adaptively determines and adjusts the output power of indoor temperature adjustment, the wind speed power of the exhaust fan, and the dehumidification output power based on the output value of the indoor distributed environment model. The collaborative control can dynamically complete the control of multiple environmental parameters;
[0029] 2. The environmental model proposed by the present invention comprehensively considers environmental parameters and the influence of different materials, and at the same time integrates the condensation factor to achieve collaborative dynamic adjustment of the environment. Specifically, the environmental parameters are obtained in real time through a multi-sensor distributed network, an improved condensation model is established in combination with the surface material characteristics, and the environmental control parameters are dynamically adjusted, which can also play a role in suppressing condensation. Description of the Drawings
[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0031] Figure 1 It is a schematic diagram of setting sensors at each corner point of the indoor of the present invention;
[0032] Figure 2 It is a block diagram of a collaborative control system for an indoor environment adjustment system provided by an embodiment of the present invention. Specific Embodiments
[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative efforts fall within the scope of protection of the present invention.
[0034] See the appendix Figure 1-2 , the multi-parameter regulation and coordination control system for the indoor environment provided by the present invention includes an indoor distributed environment parameter acquisition unit, an indoor environment model establishment unit, a main control unit, and a system display unit. The control processes implemented by each unit are as follows:
[0035] The indoor distributed environment parameter acquisition unit is specifically provided with temperature and humidity sensors, carbon dioxide concentration sensors, TVOC detection sensors, and air flow sensors at each corner of the indoor space to obtain multiple environmental parameters such as the current indoor air temperature and humidity, carbon dioxide concentration, TVOC concentration, and air flow velocity V.
[0036] See the appendix Figure 1 , taking the four corners of a common indoor space as an example, the present invention respectively sets sensors to collect indoor environmental parameters;
[0037] The indoor environment model establishment unit establishes an indoor environment model based on multiple environmental parameters, indoor condensation rate, predicted indoor surface condensation temperature, and indoor surface area; considering the different materials of the room floor and wall surfaces, the indoor environment model S is improved, and the indoor environment model is established as follows:
[0038]
[0039] Among them, M is the indoor condensation rate, T is the average indoor air temperature, pa is the indoor water vapor pressure, T surface is the predicted indoor surface condensation temperature, A is the indoor surface area, and V is the indoor air flow velocity.
[0040] That is, where M is the indoor condensation rate, and the specific calculation formula is as follows:
[0041] S is the indoor condensation surface area, T and T surface are the indoor air temperature and the predicted indoor surface condensation temperature respectively, R t is the total thermal resistance of the distributed indoor surface materials, RH is the relative humidity, P is the indoor pressure value, f(θ,σ) is the indoor surface characteristic correction parameter, and k is a constant. In the present invention, considering the influence of different indoor materials, to ensure no condensation, f(θ,σ) = cos 2 θ·σ -0.3, θ is hydrophobic, and σ is the roughness of the indoor surface material.
[0042] Among them, considering the differences in different areas of the room, the present invention proposes an improved calculation method for T surface , where T is the average value of the distributed indoor temperature, T is obtained by averaging the temperatures obtained at each corner point of the room, φ is obtained by averaging the humidities obtained at each corner point of the room, T surface≥ is the predicted dew condensation temperature, and T safe is the set safety margin (with a value of 2 - 4 °C).
[0043] The main control unit, based on the output value of the indoor distributed environment model, determines the interval in which the current output is the model output value, and combines the current indoor temperature and wind speed judgment thresholds to determine the output power for indoor temperature adjustment, the wind speed power of the exhaust fan, and the output power of dehumidification; further, a timing process is set, and the main control process completes the coordinated control of the indoor environment every certain period of time to achieve real-time dynamic control of the environmental parameters.
[0044] The system display unit is used to visually display the result data of the above multiple units. Specifically, it includes distributed environmental parameters, control parameters, and adjusted output power.
[0045] Among them, based on the output value of the indoor distributed environment model, determining the interval in which the current output is the model output value, and combining the current indoor temperature and wind speed judgment thresholds to determine the output power for indoor temperature adjustment, the wind speed power of the exhaust fan, and the output power of dehumidification; specifically, it includes:
[0046] Determine the interval in which the current model output value is located. If T1 ≤ S ≤ T2, determine whether the current relative humidity value φ in the room is greater than 50%. If so, control to increase the output power of dehumidification adjustment. Otherwise, determine whether the relative humidity value φ is less than 30%. If so, control to increase the output power of humidification adjustment; in this embodiment, T1 = -1.5 and T2 = 1.5.
[0047] In this embodiment, after the above humidity control adjustment, further, if S < T1 or S > T2, then determine the current indoor temperature. If the temperature then adjust the temperature output power according to the following rule for the output power Δe. When S < T1, Δe = k1 * (24 - Ti) (increase rate, k1 is the set proportionality coefficient); when S > T2, Δe = -k2 * (Ti - 26) (decrease rate, k2 is the set proportionality coefficient) m.
[0048] Furthermore, if the indoor wind speed V ≥ 2 m / s, the exhaust fan speed is reduced, and it is further determined whether the current relative humidity value φ in the room is greater than 50%. If so, the dehumidification output power is increased. Otherwise, it is determined whether the relative humidity value φ is less than 30%. If so, humidification treatment is performed. Through the collaborative control in this embodiment, to prevent condensation on the floor surface, it is necessary to ensure that the indoor surface temperature is higher than the indoor air dew point temperature. The present invention adopts the collaborative operation of the indoor air conditioning system and the radiant cooling / heating system, effectively increasing the indoor air dew point temperature, without the need for excessive cooling of the indoor air. The dehumidification capacity and energy consumption of the system both decrease. By combining the model output with the current environmental parameters, after cyclic control and adjustment, the balance state of the current indoor environment can be satisfied, ensuring that the temperature and humidity are appropriate and effectively preventing the occurrence of condensation on the indoor surface.
[0049] Furthermore, based on the obtained carbon dioxide concentration and TVOC concentration, the indoor air quality is monitored in real time. The user can customize the CO 2 concentration threshold (default adjustable from 800 - 1500 ppm) or the TVOC concentration threshold (0.6 mg / m 3 ) through the human-machine interface. When the detected value exceeds the set threshold, the fresh air system is automatically started and the air volume is adjusted. Integrated photocatalyst purification treatment is performed, and when the photocatalyst purification efficiency is insufficient, the fresh air auxiliary purification is automatically started through the detection module.
[0050] In a second aspect, the present invention provides a method for collaborative control of multi-parameter adjustment of the indoor environment, specifically including the following steps:
[0051] Obtaining indoor distributed environmental parameters. Specifically, a temperature and humidity sensor, a carbon dioxide concentration sensor, a TVOC detection sensor, and an air flow sensor are set at each corner point in the room to obtain multiple environmental parameters such as the current indoor air temperature, humidity, carbon dioxide concentration, TVOC concentration, and air flow velocity V in the room;
[0052] Establishing an indoor distributed environmental model. Based on multiple environmental parameters, the indoor condensation rate, predicting the indoor surface condensation temperature, and the indoor surface area, an indoor environmental model is established; considering the different materials of the room floor and wall surfaces, the indoor environmental model S is improved, and the indoor environmental model is established as follows:
[0053]
[0054] where M is the indoor condensation rate, T is the average indoor air temperature, pa is the indoor water vapor pressure, T surface is the predicted indoor surface condensation temperature, A is the indoor surface area, and V is the indoor air flow velocity.
[0055] For, where M is the indoor condensation rate, and the specific calculation formula is as follows:
[0056] S is the effective indoor condensation surface area, T and T surface are the indoor air temperature and the predicted indoor surface condensation temperature respectively, R t is the total thermal resistance of the distributed indoor surface materials, RH is the relative humidity, P is the indoor pressure value, f(θ, σ) is the correction parameter for indoor surface characteristics, and k is a constant. In the present invention, considering the influence of different materials indoors, to ensure no condensation, f(θ, σ) = cos 2 θ·σ -0.3 , where θ is the hydrophobicity and σ is the roughness of the indoor surface material. According to the different floor materials in each area of the distributed indoor, specifically including tiles, wooden boards, paint or cement, the hydrophobicity and roughness parameters corresponding to different materials can be obtained.
[0057] Among them, considering the differences in different areas indoors, the present invention proposes an improved calculation method for T surface where T is the mean value of the distributed indoor temperature, T is obtained by averaging the temperatures obtained at each corner point of the indoor, φ is obtained by averaging the humidities obtained at each corner point of the indoor, T is the predicted condensation temperature, and T surface≥ is the set safety margin (with a value of 2 - 4 °C). safe
[0058] Master control processing step: Based on the output value of the indoor distributed environment model, determine the interval in which the current output is the model output value, and combine the current indoor temperature and wind speed judgment thresholds to determine the output power of indoor temperature adjustment, the wind speed power of the exhaust fan, and the output power of dehumidification;
[0059] Furthermore, set timing processing. The master control processing completes the coordinated control of the indoor environment every certain period of time to achieve real-time dynamic control of the environmental parameters.
[0060] Result display processing step: used to visually display the result data of the above multiple units, specifically including distributed environmental parameters, control parameters, and adjusted output power.
[0061] Among them, based on the output value of the indoor distributed environment model, determine the interval in which the current output is the model output value, and combine the current indoor temperature and wind speed judgment thresholds to determine the output power of indoor temperature adjustment, the wind speed power of the exhaust fan, and the output power of dehumidification; specifically including:
[0062] Determine the interval in which the current model output value is located. If T1 ≤ S ≤ T2, determine whether the current relative humidity value φ of the indoor is greater than 50%. If so, control to increase the output power of dehumidification adjustment. Otherwise, determine whether the relative humidity value φ is less than 30%. If so, control to increase the output power of humidification adjustment; in this embodiment, T1 = -1.5 and T2 = 1.5.
[0063] In this embodiment, after the above humidity control adjustment, if further S < T1 or S > T2, then the current indoor temperature is judged. If the temperature then the output power Δe is adjusted according to the following rules to adjust the temperature output power. When S < T1, Δe = k1 * (24 - Ti) (increase rate, k1 is the set proportionality coefficient); when S > T2, Δe = -k2 * (Ti - 26) (decrease rate, k2 is the set proportionality coefficient)m.
[0064] If further the indoor wind speed V ≥ 2 m / s, then the exhaust fan wind is reduced. Further, it is judged whether the current relative humidity value φ in the room is greater than 50%. If so, the dehumidification output power is increased. Otherwise, it is judged whether the relative humidity value φ is less than 30%. If so, humidification treatment is carried out. Through the coordinated control in this embodiment, to prevent condensation on the floor surface, it is necessary to ensure that the indoor surface temperature is higher than the indoor air dew point temperature. The present invention adopts the coordinated operation of the indoor air conditioning system and the radiant cooling / heating system, effectively increasing the indoor air dew point temperature, without the need for excessive cooling of the indoor air, and the dehumidification capacity and energy consumption of the system are both reduced. By combining the model output with the current environmental parameters and performing cyclic control and adjustment, the balance state of the current indoor environment can be satisfied, ensuring that the temperature and humidity are appropriate and effectively preventing the occurrence of indoor surface condensation.
[0065] Furthermore, based on the obtained carbon dioxide concentration and TVOC concentration, the indoor air quality is monitored in real time. The user can customize the CO 2 concentration threshold (default adjustable from 800 - 1500 ppm) or the TVOC concentration threshold (0.6 mg / m 3 ) through the man-machine interface. When the detected value exceeds the set threshold, the fresh air system is automatically started and the air volume is adjusted, integrated with photocatalyst purification treatment, and when the photocatalyst purification efficiency is insufficient, the fresh air auxiliary purification is automatically started through the detection module.
[0066] The embodiment of the present invention also provides a computer-readable storage medium. Computer instructions are stored on the medium, and the computer instructions are used to make the computer execute the above method. The computer instructions on the computer-readable storage medium are used to make the computer execute the above coordinated control method, and thus at least have the same advantages as the above method.
[0067] The medium in the present invention may adopt any combination of one or more computer-readable media. The medium may be a computer-readable signal medium or a computer-readable storage medium. The medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the medium (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, the medium may be any tangible medium that contains or stores a program, and the program can be used by or in conjunction with an instruction execution system, apparatus, or device.
[0068] The computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, and the computer-readable medium can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.
[0069] The program code contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to wireless, wire, optical fiber cable, RF (Radio Frequency), etc., or any suitable combination of the above.
[0070] The computer program code for performing the operations of the present invention can be written in one or more programming languages or a combination thereof. The programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network - including a local area network (LAN) or a wide area network (WAN) - or can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).
[0071] It should be noted that the terms used in the present invention are only for describing specific embodiments and do not limit the scope of the present application. As shown in the specification of the present invention, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" do not specifically refer to the singular and may also include the plural. The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method or device comprising the said element.
[0072] It should also be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention.
Claims
1. A multi-parameter coordinated control system for indoor environment, characterized in that: include: An indoor distributed environmental parameter acquisition unit, specifically, multiple sensors are arranged at each corner point of the room to acquire multiple environmental parameters; An indoor environment model building unit, which builds an indoor environment model based on multiple environmental parameters, indoor condensation rate, predicted indoor surface condensation temperature, and indoor surface area; The main control unit determines the interval of the model output value based on the output value of the indoor distributed environment model, and determines the indoor temperature adjustment output power, exhaust fan wind speed power and dehumidification output power in combination with the current indoor temperature and wind speed judgment threshold; The system display unit is used to visualize the result data of the above multiple units, including distributed environmental parameters, control parameters, and adjusted output power.
2. The control system according to claim 1, characterized in that The indoor environment model building unit specifically includes building an indoor environment model based on multiple environmental parameters as follows: Where M is the indoor condensation rate, T is the mean indoor air temperature, pa is the indoor water vapor pressure, T surface To predict the indoor surface condensation temperature, A is the indoor surface area and V is the indoor air velocity; Where M is the indoor condensation rate, and the specific calculation formula is as follows: S is the effective condensation surface area of the room, T and T surface are the indoor air temperature and the predicted indoor surface condensation temperature, R t is the total thermal resistance of the distributed indoor surface material, RH is the indoor relative humidity, P is the indoor pressure value, f(θ,σ) is the indoor surface characteristic correction parameter, and k is a constant. In the present invention, considering the influence of different indoor materials, in order to ensure no condensation, f(θ,σ)=cos 2 θ·σ -0.3 ,θ is the hydrophobicity, σ is the roughness of the indoor surface material.
3. The control system according to claim 2, characterized in that T surface It is calculated by the following improved method: Where T is the mean value of the distributed indoor temperature, T is obtained by averaging the temperature obtained at each corner point in the room, φ is obtained by averaging the humidity obtained at each corner point in the room, T surface≥ To predict the condensation temperature, T safe is the safety margin set.
4. The control system according to claim 2, characterized in that: T safe The value is 2-4℃).
5. The control system according to claim 1, characterized in that: Set up timing processing, and the main control processing completes the coordinated control of the indoor environment at regular intervals to achieve real-time dynamic control of environmental parameters.
6. The control system according to claim 3, characterized in that: Based on the output value of the indoor distributed environment model, the current output is judged to be the interval of the model output value, and the indoor temperature adjustment output power, exhaust fan wind speed power and dehumidification output power are determined in combination with the current indoor temperature and wind speed judgment threshold; specifically including: Determine the range of the current model output value. If T1≤S≤T2, determine whether the current relative humidity value φ in the room is greater than 50%. If so, control to increase the output power of dehumidification adjustment. Otherwise, determine whether the relative humidity value φ is less than 30%. If so, control to increase the output power of humidification adjustment.
7. The control system according to claim 3, characterized in that: After adjustment by humidity control, further, if S < T1 or S > T2, then the current indoor temperature is judged. If the temperature then the output power Δe is adjusted according to the following rules for temperature output power; when S < T1, Δe = k1 * (24 - Ti) (increase rate, k1 is the set proportionality coefficient); when S > T2, Δe = -k2 * (Ti - 26) (decrease rate, k2 is the set proportionality coefficient) m.
8. The control system according to claim 7, characterized in that: If the indoor wind speed V≥2m / s, reduce the exhaust fan wind, and further determine whether the current indoor relative humidity value φ is greater than 50%. If so, increase the dehumidification output power. Otherwise, determine whether the relative humidity value φ is less than 30%. If so, perform humidification.
9. The control system according to claim 8, characterized in that: Based on the obtained carbon dioxide concentration and TVOC concentration, the indoor air quality can be monitored in real time. The user can customize the CO2 concentration threshold or TVOC concentration threshold (0.6mg / m 3 ), when the detection value exceeds the set threshold, the fresh air system is automatically started and the air volume is adjusted, the photocatalyst purification process is integrated, and the fresh air auxiliary purification is automatically started through the detection module when the photocatalyst purification efficiency is insufficient.
10. A method for coordinated control of multi-parameter adjustment of indoor environment, characterized in that: include: Indoor distributed environmental parameter acquisition, specifically, a temperature and humidity sensor, a carbon dioxide concentration sensor, a TVOC detection sensor and an airflow sensor are set at each corner of the room to obtain the current indoor air temperature and humidity, carbon dioxide concentration, TVOC concentration and air flow rate V multiple environmental parameters; Establishment of indoor distributed environmental model: Establishing indoor environmental model based on multiple environmental parameters, indoor condensation rate, predicted indoor surface condensation temperature, and indoor surface area; The main control processing step is to determine the interval of the model output value based on the output value of the indoor distributed environment model, and determine the indoor temperature adjustment output power, exhaust fan wind speed power and dehumidification output power in combination with the current indoor temperature and wind speed judgment threshold; Furthermore, a timing process is set, and the main control process completes the coordinated control of the indoor environment at regular intervals to achieve real-time dynamic control of environmental parameters. The result display processing step is used to visualize the result data of the above-mentioned multiple units, specifically including distributed environmental parameters, control parameters, and adjusted output power.
11. A computer-readable storage medium, characterized in that: The medium stores computer instructions, and the computer instructions are used to enable the computer to execute the indoor environment multi-parameter adjustment and coordinated control method as described in claim 10.
Citation Information
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