Indoor positive pressure intelligent regulation and control system and control method

Abstract

The invention provides an indoor positive pressure intelligent regulation and control system and a control method, and relates to the technical field of smart home, and the system comprises an environment sensing module which is used for collecting a group of data in real time, and the group of data comprises the operation state data of target exhaust equipment, indoor and outdoor air pressure difference data and indoor air quality data; the intelligent control center is electrically connected with the environment sensing module and used for obtaining a set of data, calculating the target air supply volume based on the set of data and dynamically regulating and controlling the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space can be maintained within a preset positive pressure interval; and the execution module is electrically connected with the intelligent control center and used for receiving the regulation and control instruction sent by the intelligent control center and adjusting the air supply amount and / or the air supplement amount based on the regulation and control instruction. According to the technical scheme, the purpose of intelligently regulating and controlling the indoor air pressure is achieved.

Description

Technical Field

[0001] The present application relates to the field of smart home technology, and in particular to an indoor positive pressure intelligent control system and control method. Background Art

[0002] With the rapid development of smart home technology, people's requirements for indoor environmental quality are getting higher and higher. However, there are still many problems in the existing technology, which restrict the accuracy of indoor environmental control and user experience. First, the phenomenon of negative pressure backflow is relatively common. For example, when cooking in the kitchen or using an exhaust fan in the bathroom, the operation of the exhaust equipment will cause negative pressure in the room. External air (such as odors in the corridor) will backflow into the room through the gaps between doors and windows, causing the odor to spread to areas such as the living room, affecting the air quality. Secondly, the coordination efficiency of existing equipment is low. Manual adjustment of the air conditioner wind speed is mainly used, which makes it difficult to match the exhaust demand in real time, resulting in an imbalance of indoor air pressure and affecting the indoor air quality. These problems seriously restrict the accuracy of indoor environmental control and user experience. Summary of the Invention

[0003] The purpose of this application is to overcome the above technical problems. This application provides an indoor positive pressure intelligent control system and control method.

[0004] In the first aspect, the present application provides an indoor positive pressure intelligent control system, including: an environmental perception module, which is used to collect a set of data in real time, and the set of data includes operating status data of the target exhaust equipment, indoor and outdoor air pressure difference data and indoor air quality data; an intelligent control center, which is electrically connected to the environmental perception module, is used to obtain a set of data and calculate the target air supply volume based on the set of data, and dynamically control the execution module according to the target air supply volume, so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range; an execution module, which is electrically connected to the intelligent control center, is used to receive the control instructions sent by the intelligent control center, and adjust the supply air volume and / or make-up air volume based on the control instructions; the target exhaust equipment, the intelligent control center and the execution module are all located in the target indoor space, the indoor and outdoor air pressure difference data is used to represent the indoor and outdoor air pressure difference corresponding to the target indoor space, and the indoor air quality data is used to represent the air quality data in the target indoor space.

[0005] By adopting the above technical solution, the system collects real-time data on the operating status of the target exhaust equipment, the indoor and outdoor air pressure difference, and indoor air quality, accurately calculates the target air supply volume, and dynamically adjusts the air supply and / or makeup air volume of the execution module to ensure that the air pressure in the target indoor space is maintained within the preset positive pressure range, significantly improving the user's living experience. This achieves the purpose of intelligently regulating indoor air pressure, effectively avoiding the negative pressure backflow caused by the operation of the exhaust equipment, thereby improving indoor air quality; the system realizes automated and intelligent air pressure regulation, eliminating the need for users to manually adjust the equipment, reducing operational complexity and improving the user experience.

[0006] Optionally, the environmental perception module includes: a device status sensor, an air pressure monitoring unit and an air quality sensor, wherein the device status sensor is used to monitor the operating status data of the target exhaust equipment; the air pressure monitoring unit is used to monitor the indoor and outdoor air pressure difference data; and the air quality sensor is used to monitor the indoor air quality data.

[0007] By adopting the above technical solution, it is possible to achieve comprehensive monitoring of the operating status of the target exhaust equipment, the indoor and outdoor air pressure difference, and the indoor air quality. Specifically, the equipment status sensor monitors the operating status data of the target exhaust equipment to ensure that the system is aware of the working conditions of the exhaust equipment in a timely manner; the air pressure monitoring unit monitors the indoor and outdoor air pressure difference data, which helps the system accurately calculate the required air supply volume to maintain positive indoor pressure; the air quality sensor monitors the indoor air quality data, providing a basis for dynamic regulation of the system, thereby effectively avoiding the phenomenon of negative pressure backflow and improving the indoor environmental quality and user comfort. Through the coordinated work of the above three types of sensors, the system can comprehensively and real-time obtain data related to indoor air pressure regulation, provide accurate input information for the intelligent control center, and thus achieve precise dynamic regulation.

[0008] Optionally, the air pressure monitoring unit includes one of the following: a pressure differential sensor, the pressure differential sensor is used to monitor indoor and outdoor air pressure difference data, wherein the pressure differential sensor is installed in the target indoor space; at least one indoor air pressure sensor and at least one outdoor air pressure sensor, wherein the indoor air pressure sensor is installed in the target indoor space, the indoor air pressure sensor is used to monitor indoor air pressure data, and the outdoor air pressure sensor is installed at a position on the building exterior wall corresponding to the target indoor space, and the outdoor air pressure sensor is used to monitor outdoor air pressure data in real time, and the indoor and outdoor air pressure difference data is obtained based on the indoor air pressure data and the outdoor air pressure data.

[0009] By adopting the above technical solution, when a pressure differential sensor is used, the indoor and outdoor air pressure difference can be directly obtained, thereby providing an accurate basis for the subsequent intelligent control center to calculate the target air supply volume; when a combination of an indoor air pressure sensor and an outdoor air pressure sensor is used, the indoor and outdoor air pressure data are monitored separately and the difference is calculated, thereby further improving the measurement accuracy of the air pressure difference data, ensuring the accuracy of the system's indoor air pressure control, and effectively avoiding the problem of negative pressure backflow often caused by air pressure differences.

[0010] Optionally, the execution module includes a variable frequency central air conditioner and an electric fresh air valve. The variable frequency central air conditioner is used to dynamically adjust the air supply volume according to the control instructions, and the electric fresh air valve is used to supplement fresh air.

[0011] By adopting this technical solution, the variable-frequency central air conditioner can dynamically adjust the air supply volume based on control commands, ensuring that indoor air pressure remains within the preset positive pressure range and effectively preventing negative pressure backflow caused by the operation of exhaust equipment. Furthermore, the introduction of an electric fresh air valve enables fresh air replenishment, further optimizing air pressure balance while maintaining indoor air quality. The synergistic effect of these two factors significantly improves the accuracy of indoor environmental control and user experience.

[0012] Optionally, the intelligent control center has a built-in positive pressure control algorithm, which calculates the target air supply volume in real time based on the indoor and outdoor air pressure difference data and the operating status data of the target exhaust equipment.

[0013] By adopting the above technical solution, the positive pressure control algorithm built into the intelligent control center can calculate the target air supply volume in real time based on the indoor and outdoor air pressure difference data and the operating status data of the target exhaust equipment. The effects of this solution include: First, the real-time calculated target air supply volume can dynamically match the exhaust demand, effectively avoiding the problem of indoor air pressure imbalance caused by manual adjustment; second, by comprehensively considering the indoor and outdoor air pressure difference and the operating status of the exhaust equipment, it can accurately control the indoor air pressure and prevent the occurrence of negative pressure backflow, thereby significantly improving indoor air quality and optimizing user experience. The positive pressure control algorithm is calculated based on real-time data and can quickly respond to environmental changes. It can adjust the target air supply volume in a timely manner according to the operating status of the exhaust equipment and the changes in the air pressure difference, effectively solving the problem of difficulty in responding to dynamic changes.

[0014] Optionally, the positive pressure control algorithm includes a machine learning prediction module for predicting user behavior based on historical data to adjust the air supply volume of the execution module in advance.

[0015] By implementing this technical solution, user behavior can be predicted based on historical data, allowing for proactive adjustments to air volume. This technical solution, combined with machine learning algorithms, empowers the system with intelligent predictive capabilities, enabling proactive adjustments before actual user needs arise, effectively avoiding indoor pressure fluctuations or air quality degradation caused by delayed responses. Specifically, this technical approach significantly enhances the system's foresight and adaptability, optimizing the precision of indoor environmental control and user experience.

[0016] Optionally, the intelligent control center is used to dynamically regulate the execution module in the following manner: when a set of data indicates that the concentration of the target object in the indoor air is greater than or equal to a preset concentration threshold, the electric fresh air valve is controlled to supply air according to a first proportion of the target air supply volume, and the variable frequency central air conditioner is controlled to supply air according to a second proportion of the target air supply volume, the sum of the first proportion and the second proportion is equal to 1, and the target object includes at least one of the following: PM2.5, CO2 and VOC, wherein the execution module includes a variable frequency central air conditioner and an electric fresh air valve; when a set of data indicates that the concentration of the target object in the indoor air is less than a preset concentration threshold, if the target supply air volume is greater than the preset air volume, the variable frequency central air conditioner is controlled to supply air according to the preset air volume, and the electric fresh air valve is controlled to supply air according to the target fresh air volume, wherein the sum of the preset air volume and the target fresh air volume is greater than or equal to the target supply air volume.

[0017] By adopting the above technical solution, when the concentration of target objects (such as PM2.5, CO2 or VOC) in the indoor air reaches or exceeds the preset threshold, the electric fresh air valve and the variable frequency central air conditioner work together in a specific proportion to ensure the balance of supply and replenishment air, thereby quickly improving the indoor air quality and reducing the concentration of harmful substances; when the concentration of the target object is lower than the threshold and the target air supply volume is large, the system prioritizes controlling the variable frequency central air conditioner to supply air at the preset air volume, and supplements fresh air through the electric fresh air valve to ensure stable indoor air pressure while avoiding energy waste; the overall solution effectively solves the problem of negative pressure backflow, improves the accuracy of indoor environment control, and optimizes the user experience.

[0018] In the second aspect of the present application, an indoor positive pressure intelligent control method is also provided, which is applied to any of the aforementioned systems, including: the environmental perception module collects a set of data in real time and transmits it to the intelligent control center, wherein the set of data includes the operating status data of the target exhaust equipment, indoor and outdoor pressure difference data and indoor air quality data; the intelligent control center calculates the target air supply volume based on the set of data; the intelligent control center dynamically adjusts the execution module according to the target air supply volume, so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range.

[0019] By adopting the above technical solution, an intelligent control method has been implemented that can dynamically adjust the supply and makeup air volumes based on the operating status of the target exhaust equipment, the indoor and outdoor pressure differential, and the indoor air quality. This method uses the environmental perception module to collect relevant data in real time and transmits it to the intelligent control center. The intelligent control center calculates the target supply air volume based on this data and dynamically adjusts the execution module, effectively maintaining the air pressure of the target indoor space within a preset positive pressure range. This solves the air quality problems caused by negative pressure backflow and the low equipment coordination efficiency in the existing technology, improving the accuracy of indoor environmental control and user experience.

[0020] Optionally, the intelligent control center dynamically adjusts the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range, including: when a set of data indicates that the concentration of the target object in the indoor air is greater than or equal to a preset concentration threshold, the electric fresh air valve is controlled to supply air according to a first proportion of the target air supply volume, and the variable frequency central air conditioner is controlled to supply air according to a second proportion of the target air supply volume, the sum of the first proportion and the second proportion is equal to 1, and the target object includes at least one of the following: PM2.5, CO2 and VOC, wherein the execution module includes a variable frequency central air conditioner and an electric fresh air valve; when a set of data indicates that the concentration of the target object in the indoor air is less than a preset concentration threshold, if the target supply air volume is greater than the preset air volume, the variable frequency central air conditioner is controlled to supply air according to the preset air volume, and the electric fresh air valve is controlled to supply air according to the target fresh air volume, wherein the sum of the preset air volume and the target fresh air volume is greater than or equal to the target supply air volume.

[0021] By adopting the above technical solution, when the concentration of the target object (such as PM2.5, CO2 or VOC) in the indoor air is greater than or equal to the preset concentration threshold, the electric fresh air valve and the variable frequency central air conditioner work together in a specific proportion to achieve precise air supply and replenishment, effectively improve the air quality, and avoid energy waste caused by excessive air supply; when the concentration of the target object in the indoor air is lower than the preset concentration threshold and the target air supply volume is greater than the preset air volume, the variable frequency central air conditioner is preferentially controlled to supply air at the preset air volume, and fresh air is supplemented through the electric fresh air valve to ensure indoor air pressure balance while improving energy utilization efficiency.

[0022] Optionally, the intelligent control center calculates the target air supply volume based on a set of data, including: calculating the target air supply volume based on the operating status data and indoor and outdoor air pressure difference data included in a set of data according to the following formula: Q1=k×Q0 + β×(∆P1 - ∆P0), where Q1 represents the target air supply volume, Q0 represents the current exhaust volume of the target exhaust device, the operating status data includes the current exhaust volume of the target exhaust device, ∆P1 represents the target positive pressure, ∆P0 represents the current indoor and outdoor air pressure data, k represents the compensation coefficient, and β is the preset proportional coefficient.

[0023] By adopting the above technical solution, the target air supply volume is dynamically adjusted by introducing a compensation coefficient and a preset proportional coefficient, ensuring that the indoor air pressure can be maintained within the preset pressure range, thereby avoiding the occurrence of negative pressure backflow. The formulaic calculation method improves the accuracy of air supply volume control, allowing the system to match exhaust demand in real time and improve the precision of indoor environmental control. By accurately monitoring and compensating for the indoor and outdoor pressure difference, indoor air quality is improved, providing users with a more comfortable and healthy living environment. The intelligent control center can accurately calculate the target air supply volume based on the current exhaust volume of the target exhaust device and the indoor and outdoor pressure difference data using a positive pressure control algorithm. This solution effectively solves the problem of indoor air pressure imbalance in existing technologies.

[0024] In a third aspect of the present application, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements any one of the above method steps when executing the program.

[0025] In a fourth aspect of the present application, a computer-readable storage medium is further provided. The computer-readable storage medium stores instructions. When the instructions are executed, any one of the above method steps is performed.

[0026] In summary, one or more technical solutions provided in this application have at least the following technical effects or advantages: 1. It achieves the purpose of intelligently regulating indoor air pressure, effectively avoiding the negative pressure backflow caused by the operation of exhaust equipment, thereby improving indoor air quality; the system realizes automatic and intelligent air pressure regulation, eliminating the need for users to manually adjust the equipment, reducing operational complexity and improving the user experience; 2. The positive pressure control algorithm is calculated based on real-time data and can quickly respond to environmental changes. It can adjust the target air supply volume in a timely manner according to the operating status of the exhaust equipment and the change of air pressure difference, effectively solving the problem of difficulty in responding to dynamic changes. 3. Combined with machine learning algorithms, the system has intelligent predictive capabilities and can make proactive adjustments before actual user needs arise, effectively avoiding indoor air pressure fluctuations or air quality degradation caused by delayed responses. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an architecture diagram of an indoor positive pressure intelligent control system provided by an embodiment of the present application; Figure 2 This is a flow chart of an indoor positive pressure intelligent control method provided by an embodiment of the present application; Figure 3 It is a structural diagram of an electronic device disclosed in an embodiment of the present application.

[0028] Description of reference numerals: 300 - electronic device; 301 - processor; 302 - communication bus; 303 - user interface; 304 - network interface; 305 - memory. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0030] In the description of the embodiments of this application, words such as "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "for example" or "for instance" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "for example" or "for instance" is intended to present the relevant concepts in a concrete manner.

[0031] In the description of the embodiments of the present application, the term "plurality" means two or more. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. The terms "include," "comprise," "have" and their variations all mean "including but not limited to," unless otherwise specifically emphasized.

[0032] This application provides an indoor positive pressure intelligent control system, referring to Figure 1 , Figure 1 This is an architectural diagram of an indoor positive pressure intelligent control system provided by an embodiment of the present application, the system including: an environmental perception module, used to collect a set of data in real time, the set of data including operating status data of the target exhaust equipment, indoor and outdoor air pressure difference data and indoor air quality data; an intelligent control center, electrically connected to the environmental perception module, used to obtain a set of data and calculate the target air supply volume based on the set of data, and dynamically control the execution module according to the target air supply volume, so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range; an execution module, electrically connected to the intelligent control center, used to receive the control instructions sent by the intelligent control center, and adjust the supply air volume and / or make-up air volume based on the control instructions; the target exhaust equipment, the intelligent control center and the execution module are all located in the target indoor space, the indoor and outdoor air pressure difference data are used to represent the indoor and outdoor air pressure difference corresponding to the target indoor space, and the indoor air quality data are used to represent the air quality data in the target indoor space.

[0033] In the above embodiment, the system accurately calculates the target air supply volume by collecting real-time data on the operating status of the target exhaust equipment, the indoor and outdoor pressure differential, and indoor air quality. It then dynamically adjusts the air supply and / or makeup air volume of the execution module to ensure that the air pressure in the target indoor space remains within a preset positive pressure range, significantly improving the user's living experience. This achieves the goal of intelligently regulating indoor air pressure, effectively avoiding negative pressure backflow caused by the operation of the exhaust equipment, thereby improving indoor air quality. The system implements automated and intelligent air pressure regulation, eliminating the need for users to manually adjust the equipment, reducing operational complexity and enhancing the user experience.

[0034] The indoor positive pressure intelligent control system collects a set of data in real time through the environmental perception module. The set of data includes the operating status data of the target exhaust equipment, the indoor and outdoor pressure difference data and the indoor air quality data. These data are transmitted to the intelligent control center (or intelligent controller). The intelligent control center calculates the target air supply volume based on the set of data and sends a control instruction to the execution module; the execution module adjusts the supply air volume and / or make-up air volume according to the control instruction, so that the indoor air pressure of the target indoor space is maintained within the preset positive pressure range. In the related art, when exhaust equipment is used in indoor spaces, negative pressure will be formed indoors, and external air (such as odor in the corridor) will flow back into the room through the gaps in doors and windows, affecting the air quality; the indoor positive pressure intelligent control system of this embodiment monitors the indoor and outdoor air pressure difference in real time, and dynamically controls the supply air volume and makeup air volume, which can effectively avoid the negative pressure backflow phenomenon and prevent external odor from entering the room; in addition, in the related art, it is difficult to match the exhaust demand in real time by manually adjusting the air-conditioning wind speed, resulting in an imbalance in the indoor air pressure and affecting the indoor air quality. The indoor positive pressure intelligent control system of this embodiment automatically calculates the target air supply volume through the intelligent control center, and dynamically controls the execution module, thereby realizing efficient coordination between the exhaust equipment and the air supply equipment (such as the above-mentioned execution module), and improving the accuracy of indoor air pressure control. This embodiment provides a closed-loop positive pressure control system based on multi-parameter feedback. This system uses an environmental sensing module to dynamically monitor three key parameters: exhaust equipment status, air pressure differential, and air quality. An intelligent control center calculates the target air supply volume in real time and dynamically adjusts the air supply through an execution module (such as a fresh air system, central air conditioning, or an electric fresh air valve) to maintain a constant indoor pressure within a preset positive pressure range, for example, 5-15 Pa (or other positive pressure ranges). The system automatically matches exhaust demand with makeup air volume using a pressure balance algorithm, forming a "monitor-calculate-execute" closed-loop control mechanism. Maintaining a constant positive pressure range effectively prevents external odors from infiltrating through gaps in doors and windows, addressing the problem of negative pressure pollution spread caused by exhaust in kitchens and bathrooms. This system breaks through the traditional manual adjustment mode and automatically matches the air supply volume of the air conditioning / fresh air system through the linkage analysis of the exhaust equipment operating status and air pressure differential, eliminating the lag problem of manual adjustment. Furthermore, by coupling air pressure control with air quality monitoring (such as PM2.5 and CO2), the system maintains positive pressure while also taking into account air cleanliness, achieving coordinated optimization of multiple environmental parameters. The target indoor space can be a home, restaurant, conference room, or other indoor location. This embodiment effectively avoids negative pressure backflow through real-time monitoring and dynamic regulation, preventing external odors from entering the room. At the same time, precise regulation can be performed based on indoor air quality data to ensure that indoor air quality remains in good condition. The intelligent control center can accurately calculate the target air supply volume based on real-time collected data and dynamically regulate the execution module to ensure that the indoor air pressure is always maintained within a preset pressure range, thereby improving the accuracy and stability of indoor environment regulation.

[0035] In an optional embodiment, the environmental perception module includes: a device status sensor, an air pressure monitoring unit and an air quality sensor, wherein the device status sensor is used to monitor the operating status data of the target exhaust device; the air pressure monitoring unit is used to monitor the indoor and outdoor air pressure difference data; and the air quality sensor is used to monitor the indoor air quality data.

[0036] In the above embodiment, comprehensive monitoring of the operating status of the target exhaust equipment, the indoor and outdoor air pressure difference, and the indoor air quality can be achieved. Specifically, the equipment status sensor monitors the operating status data of the target exhaust equipment to ensure that the system can timely grasp the working conditions of the exhaust equipment; the air pressure monitoring unit monitors the indoor and outdoor air pressure difference data, which helps the system to accurately calculate the required air supply volume to maintain positive indoor pressure; the air quality sensor monitors the indoor air quality data, providing a basis for dynamic regulation for the system, thereby effectively avoiding the phenomenon of negative pressure backflow and improving the indoor environmental quality and user comfort. Through the coordinated work of the above three types of sensors, the system can comprehensively and real-time obtain data related to indoor air pressure regulation, provide accurate input information for the intelligent control center, and thus achieve precise dynamic regulation.

[0037] Equipment status sensors monitor the operating status of target exhaust equipment (such as kitchen exhaust fans and bathroom exhaust systems), including but not limited to whether the equipment is powered on, operating speed, or power level. Air pressure monitoring units measure the indoor / outdoor pressure differential—the relative pressure between the indoor and outdoor air. This is particularly important for identifying negative pressure conditions, as negative pressure can cause air to flow back into the room. Air quality sensors monitor indoor air quality data, such as particulate matter concentration (e.g., PM2.5), volatile organic compound (VOC) concentrations, and carbon dioxide (CO2) levels, to assess indoor air quality. The combined use of equipment status sensors, air pressure monitoring units, and air quality sensors ensures comprehensive monitoring of all key factors affecting the indoor environment, thereby improving the accuracy of subsequent analysis and control decisions. Based on this more comprehensive data input, the intelligent control center can develop more effective and rational control strategies to ensure that the indoor space maintains an ideal positive pressure and good air quality. This not only improves the overall quality of the indoor environment but also reduces the need for users to manually adjust equipment, making the entire system more intelligent and user-friendly, significantly enhancing living comfort. In the related art, indoor air pressure control systems often lack comprehensive monitoring of the operating status of exhaust equipment, indoor and outdoor air pressure differences, and indoor air quality. For example, by only monitoring indoor air pressure through a simple air pressure sensor, it is impossible to fully understand the causes of air pressure changes (such as the operating status of the exhaust equipment), nor can it perform targeted regulation based on air quality data. In this embodiment, through the combination of equipment status sensors, air pressure monitoring units, and air quality sensors, the system can simultaneously monitor the operating status of the target exhaust equipment, the indoor and outdoor air pressure difference, and the indoor air quality. This comprehensive data collection provides the intelligent control center with richer information, enabling it to more accurately determine the cause of indoor air pressure changes and make adjustments accordingly. Since accurate data can be obtained in real time, the intelligent control center can dynamically adjust the supply air volume and makeup air volume based on the operating status of the target exhaust equipment (such as whether the exhaust fan is turned on), the indoor and outdoor air pressure difference (whether there is a risk of negative pressure), and the indoor air quality, thereby more accurately maintaining the indoor air pressure within the preset positive pressure range.

[0038] In an optional embodiment, the air pressure monitoring unit includes one of the following: a pressure differential sensor, the pressure differential sensor is used to monitor indoor and outdoor air pressure difference data, wherein the pressure differential sensor is installed in the target indoor space; at least one indoor air pressure sensor and at least one outdoor air pressure sensor, wherein the indoor air pressure sensor is installed in the target indoor space, the indoor air pressure sensor is used to monitor indoor air pressure data, and the outdoor air pressure sensor is installed at a position on the exterior wall of the building corresponding to the target indoor space, and the outdoor air pressure sensor is used to monitor outdoor air pressure data in real time, and the indoor and outdoor air pressure difference data is obtained based on the indoor air pressure data and the outdoor air pressure data.

[0039] In the above embodiment, when a pressure differential sensor is used, the indoor and outdoor air pressure difference can be directly obtained, thereby providing an accurate basis for the subsequent intelligent control center to calculate the target air supply volume; when a combination of an indoor air pressure sensor and an outdoor air pressure sensor is used, the indoor and outdoor air pressure data are monitored separately and the difference is calculated, thereby further improving the measurement accuracy of the air pressure difference data, ensuring the accuracy of the system's indoor air pressure control, and effectively avoiding the problem of negative pressure backflow often caused by air pressure differences.

[0040] The indoor and outdoor air pressure difference data is directly measured by a pressure difference sensor installed in the target indoor space; or, the indoor and outdoor air pressure data are monitored separately by at least one indoor air pressure sensor installed in the target indoor space and at least one outdoor air pressure sensor installed on the exterior wall of the building, and then the indoor and outdoor air pressure difference data is obtained by calculation; the indoor and outdoor air pressure difference can be accurately measured directly or indirectly through a pressure difference sensor or a combination of independent indoor and outdoor air pressure sensors, providing more accurate data support for the intelligent control center.

[0041] In an optional embodiment, the execution module includes a variable frequency central air conditioner and an electric fresh air valve. The variable frequency central air conditioner is used to dynamically adjust the air supply volume according to the control instructions, and the electric fresh air valve is used to supplement fresh air.

[0042] In the above embodiment, the variable-frequency central air conditioner dynamically adjusts air delivery based on control commands, ensuring that indoor air pressure remains within a preset positive pressure range and effectively preventing negative pressure backflow caused by exhaust equipment operation. Simultaneously, the introduction of an electric fresh air valve enables fresh air replenishment, further optimizing air pressure balance while maintaining indoor air quality. These two combined effects significantly enhance the accuracy of indoor environmental control and user experience.

[0043] The execution module consists of a variable-frequency central air conditioner and an electric fresh air valve. These two systems work in tandem under control commands from the intelligent control center. The variable-frequency central air conditioner dynamically adjusts the air supply volume by varying the compressor speed, accelerating or slowing the rate and volume of air delivered to the room. The electric fresh air valve, in response to control commands, controls the opening and closing of the valve to adjust the amount of fresh air supplied. When more fresh air is needed, the valve opens wider to introduce more fresh air. Together, the two maintain indoor air pressure within a preset positive pressure range. This combination enables precise control of both air supply and fresh air volume, ensuring that indoor air pressure remains within this range. The coordinated operation of the variable-frequency central air conditioner and the electric fresh air valve enables the system to perform integrated control based on the indoor and outdoor pressure differential and indoor air quality data, improving the accuracy and efficiency of indoor air pressure regulation. The entire execution process requires no manual user intervention; the system automatically controls the system based on environmental data, achieving automated and intelligent indoor environmental control, enhancing user experience and reducing operational complexity.

[0044] In an optional embodiment, the intelligent control center has a built-in positive pressure control algorithm, which calculates the target air supply volume in real time based on indoor and outdoor air pressure difference data and operating status data of the target exhaust equipment.

[0045] In the above embodiment, the positive pressure control algorithm built into the intelligent control center can calculate the target air supply volume in real time based on the indoor and outdoor air pressure difference data and the operating status data of the target exhaust equipment. The effects of this solution include: first, the target air supply volume calculated in real time can dynamically match the exhaust demand, effectively avoiding the problem of indoor air pressure imbalance caused by manual adjustment; second, through comprehensive consideration of the indoor and outdoor air pressure difference and the operating status of the exhaust equipment, the indoor air pressure can be accurately controlled to prevent the occurrence of negative pressure backflow, thereby significantly improving the indoor air quality and optimizing the user experience. The positive pressure control algorithm is calculated based on real-time data, can quickly respond to environmental changes, and timely adjusts the target air supply volume according to the operating status of the exhaust equipment and the changes in the air pressure difference, effectively solving the problem of difficulty in coping with dynamic changes.

[0046] The positive pressure control algorithm built into the intelligent control center uses indoor and outdoor pressure difference data and the operating status data of the target exhaust equipment as key inputs. When the target exhaust equipment is running, it will change the indoor air flow and air pressure status. The equipment status sensor transmits the operating status data to the intelligent control center, and the air pressure monitoring unit simultaneously feeds back the indoor and outdoor pressure difference data. Based on these real-time data, the positive pressure control algorithm uses specific calculation models and logical rules to quickly calculate the target air supply volume required to maintain the target indoor space in the preset pressure range, and accordingly sends control instructions to the execution module to achieve dynamic adjustment of the indoor air pressure. In related technologies, the equipment coordination efficiency is low, and it is difficult to manually adjust the air conditioner wind speed to match the exhaust demand in real time. In actual use, the operating status of the exhaust equipment is constantly changing, and the indoor and outdoor air pressure also fluctuates accordingly. Existing technologies are difficult to quickly adapt to such dynamic changes, resulting in an imbalance in indoor air pressure. This embodiment uses the positive pressure control algorithm to accurately calculate the target air supply volume. The intelligent control center can more accurately control the execution module to adjust the supply air volume and / or make-up air volume, ensuring that the indoor air pressure is stably maintained in the preset positive pressure range, greatly improving the accuracy of indoor environment regulation; the positive pressure control algorithm is data-driven and realizes intelligent collaboration between modules; the intelligent control center sends instructions to the execution module based on the algorithm calculation results, so that equipment such as variable frequency central air conditioners and electric fresh air valves can work together according to actual indoor needs, changing the previous situation of low efficiency of manual adjustment and significantly improving the equipment collaboration efficiency.

[0047] In an optional embodiment, the positive pressure control algorithm includes a machine learning prediction module for predicting user behavior based on historical data to adjust the air supply volume of the execution module in advance.

[0048] In the above-mentioned embodiment, user behavior can be predicted based on historical data, allowing for proactive adjustment of air volume. This embodiment incorporates machine learning algorithms, giving the system intelligent predictive capabilities, enabling proactive adjustments before actual user needs arise, effectively avoiding indoor pressure fluctuations or air quality degradation caused by delayed responses. Specifically, this technical approach significantly enhances the system's foresight and adaptability, optimizing the accuracy of indoor environmental control and user experience.

[0049] The machine learning prediction module is trained using historical data covering user usage of target exhaust devices at different times and in different scenarios, as well as corresponding indoor and outdoor pressure differential data and indoor air quality data. By analyzing and learning from this extensive historical data, the module establishes a correlation model between user behavior and changes in the indoor environment. When the system is running, the machine learning prediction module uses information such as the current time, date, and season, combined with the established model, to predict the user's likely next behavior, such as when they will use the kitchen exhaust fan for cooking or the bathroom exhaust fan. Once the prediction is made, the module transmits the prediction to the positive pressure control algorithm before the action occurs. The positive pressure control algorithm then pre-calculates and adjusts the target air supply volume. This in turn sends control instructions to the execution module, causing the variable-frequency central air conditioner and electric fresh air valve to adjust the air supply and fresh air supply volume in advance to address the impending changes in the indoor environment. This embodiment adjusts the air supply volume of the execution module in advance to maintain indoor air pressure balance before the user uses the exhaust equipment, avoiding problems such as odor caused by negative pressure backflow, so that users are always in a comfortable and healthy indoor environment when using related equipment, greatly improving the user experience; the addition of the machine learning prediction module enables the system to have learning and prediction capabilities, transforming from simple current data-based control to intelligent control based on historical data and predicted data, further improving the intelligence level of the system and reflecting the advanced nature and foresight of the technology.

[0050] In an optional embodiment, the target exhaust equipment includes at least one of the following: a kitchen range hood; an exhaust fan.

[0051] In the above embodiment, the target exhaust equipment may include kitchen range hoods and / or exhaust fans. These two devices are the most common exhaust equipment in daily life. They will exhaust indoor air when in operation, which may cause negative pressure to form indoors, thereby causing negative pressure backflow problems; by incorporating these devices into the system monitoring and control range, the system can dynamically adjust the supply air volume and makeup air volume according to their operating status to maintain indoor air pressure balance.

[0052] Kitchen hoods and exhaust fans are common indoor exhaust devices. When they operate, they draw air from the room, causing changes in indoor air pressure. The device status sensor in the environmental sensing module monitors the operating status of the kitchen hood or exhaust fan in real time. The air pressure monitoring unit simultaneously monitors the indoor and outdoor air pressure differential. The air quality sensor monitors indoor air quality and transmits this data to the intelligent control center. The intelligent control center's built-in positive pressure control algorithm calculates the target air supply volume based on this data and then sends control instructions to the execution module (the variable frequency central air conditioner and the electric fresh air valve). By adjusting the air supply volume and fresh air replenishment, it ensures that the indoor air pressure remains within the preset positive pressure range while the kitchen hood or exhaust fan is operating, avoiding adverse conditions caused by negative pressure generated by exhaust.

[0053] In an optional embodiment, the device status sensor includes one of the following: a current sensor, a vibration sensor; wherein the current sensor is connected in series to the power supply circuit of the target exhaust device, and the vibration sensor is installed on the motor housing of the target exhaust device.

[0054] In the above embodiment, the equipment status sensor accurately monitors the operating status of the target exhaust equipment. Specifically, a current sensor connected in series with the target exhaust equipment's power supply circuit captures current changes in real time, accurately determining whether the equipment is operating and the load. A vibration sensor, mounted on the motor housing of the target exhaust equipment, detects its vibration characteristics to determine its operating status. The use of these two sensors improves the accuracy and reliability of the system's monitoring of the target exhaust equipment's operating status, providing reliable data support for the subsequent precise regulation of the intelligent control center.

[0055] This embodiment provides two methods for monitoring the operating status of the target exhaust device. A current sensor is connected in series with the target exhaust device's power supply circuit. When the target exhaust device is operating, current flows through the circuit. The current sensor can detect the magnitude and presence of current in real time. Since changes in the device's operating status (such as start, stop, and speed changes) are directly reflected in current changes, analyzing this current data can determine the target exhaust device's operating status. A vibration sensor is installed on the target exhaust device's motor housing. When the device is operating, the motor generates vibrations. Based on principles such as the piezoelectric effect, the vibration sensor converts the received vibration signal into an electrical signal. By analyzing parameters such as the frequency and amplitude of the vibration signal, the target exhaust device's operating status information, such as whether the device is operating and whether it is operating smoothly, can be obtained. The device status sensor transmits this monitored data to the intelligent control center, providing a basis for system regulation.

[0056] In an optional embodiment, the air quality sensor includes one or more of the following sensors: a semiconductor gas sensor, an electrochemical gas sensor, and an optical sensor. The air quality sensor is installed in various functional areas of the target indoor space for real-time monitoring of air quality data and transmitting the air quality data to an intelligent control center. The air quality data includes at least one of the following: particulate matter concentration, volatile organic compound concentration, and carbon dioxide concentration.

[0057] In the above-mentioned embodiments, comprehensive monitoring and precise control of indoor air quality can be achieved. Specifically, by installing semiconductor gas sensors, electrochemical gas sensors or optical sensors in various functional areas of the target indoor space, air quality data such as indoor particulate matter concentration (such as PM2.5), volatile organic compound (VOC) concentration, carbon dioxide concentration, or indoor odor concentration, harmful gas concentration and particulate matter concentration can be obtained in real time, and these data can be transmitted to the intelligent control center. Combined with the overall solution of the environmental perception module and the intelligent control center, this technical means can effectively improve the coverage and accuracy of air quality monitoring, and provide reliable data support for the subsequent dynamic control of indoor air pressure and optimization of air quality.

[0058] In an optional embodiment, the intelligent control center is used to dynamically regulate the execution module in the following manner: when a set of data indicates that the concentration of the target object in the indoor air is greater than or equal to a preset concentration threshold, the electric fresh air valve is controlled to supply air according to a first proportion of the target air supply volume, and the variable frequency central air conditioner is controlled to supply air according to a second proportion of the target air supply volume, the sum of the first proportion and the second proportion is equal to 1, and the target object includes at least one of the following: PM2.5, CO2 and VOC, wherein the execution module includes a variable frequency central air conditioner and an electric fresh air valve; when a set of data indicates that the concentration of the target object in the indoor air is less than a preset concentration threshold, if the target supply air volume is greater than the preset air volume, the variable frequency central air conditioner is controlled to supply air according to the preset air volume, and the electric fresh air valve is controlled to supply air according to the target fresh air volume, wherein the sum of the preset air volume and the target fresh air volume is greater than or equal to the target supply air volume.

[0059] In the above embodiment, when the concentration of the target object (such as PM2.5, CO2 or VOC) in the indoor air reaches or exceeds the preset threshold, the electric fresh air valve and the variable frequency central air conditioner work together in a specific proportion to ensure the balance of supply air and supply air, thereby quickly improving the indoor air quality and reducing the concentration of harmful substances; when the concentration of the target object is lower than the threshold and the target supply air volume is large, the system prioritizes controlling the variable frequency central air conditioner to supply air at a preset air volume, and supplements fresh air through the electric fresh air valve to ensure stable indoor air pressure while avoiding energy waste; this embodiment effectively solves the problem of negative pressure backflow, improves the accuracy of indoor environment control, and optimizes user experience.

[0060] The intelligent control center determines the concentration of target objects (PM2.5, CO2, VOC, etc.) in the indoor air based on a set of data collected by the environmental perception module (operating status data of the target exhaust equipment, indoor and outdoor pressure difference data, and indoor air quality data). When the concentration of the target object in the indoor air is greater than or equal to the preset concentration threshold, it means that the indoor air quality is poor. It is understandable that each target object is set with a corresponding preset concentration threshold. For example, the preset concentration threshold for PM2.5 is 35µg / m 3 The preset concentration threshold for CO2 is 1000ppm, and the preset concentration threshold for VOC is 0.5mg / m 3 It should be noted that the preset concentration threshold here is only an example and can be flexibly set for different scenarios. To improve air quality and maintain stable indoor air pressure, the intelligent control center allocates the target air supply volume to the electric fresh air valve and the variable frequency central air conditioner according to a certain ratio. The electric fresh air valve is controlled to supply air at a first ratio of the target air supply volume to introduce fresh air to dilute pollutants, while the variable frequency central air conditioner is controlled to supply air at a second ratio of the target air supply volume. The two work together to improve air quality and maintain air pressure balance. When the concentration of the target object in the indoor air is lower than the preset concentration threshold, if the target air supply volume is greater than the preset air volume, to avoid energy waste and maintain stable indoor air pressure, the intelligent control center controls the variable frequency central air conditioner to supply air at the preset air volume and the electric fresh air valve to supply air at the target fresh air volume. This ensures that the sum of the preset air volume and the target fresh air volume is greater than or equal to the target air supply volume, achieving energy-saving operation while meeting indoor environmental requirements. When the concentration of the target object in the indoor air is lower than the preset concentration threshold and the target air supply volume is less than or equal to the preset air volume, the variable frequency central air conditioner can be controlled to supply air first. Optionally, when the indoor air quality is good and the target air supply volume is large, the equipment operating parameters are adjusted to reduce unnecessary energy consumption.

[0061] The present application also provides an indoor positive pressure intelligent control method, which is applied to the indoor positive pressure intelligent control system of any of the above embodiments. Figure 2 This is a flow chart of an indoor positive pressure intelligent control method provided by an embodiment of the present application, which includes: Step S201: The environmental sensing module collects a set of data in real time and transmits it to the intelligent control center. The set of data includes the operating status data of the target exhaust equipment, the indoor and outdoor pressure difference data, and the indoor air quality data. Step S202: The intelligent control center calculates the target air supply volume based on a set of data; In step S203, the intelligent control center dynamically adjusts the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range.

[0062] Through the above steps, an intelligent control method is implemented that can dynamically adjust the supply and makeup air volumes based on the operating status of the target exhaust equipment, the indoor and outdoor pressure differential, and the indoor air quality. This method uses the environmental perception module to collect relevant data in real time and transmits it to the intelligent control center. The intelligent control center calculates the target supply air volume based on this data and dynamically adjusts the execution module, effectively maintaining the air pressure of the target indoor space within a preset positive pressure range. This solves the air quality problems caused by negative pressure backflow and the low equipment coordination efficiency in the existing technology, improving the accuracy of indoor environmental control and user experience.

[0063] The method of this embodiment relies on an indoor positive pressure intelligent control system. First, the environmental perception module performs its data collection function and collects the operating status data of the target exhaust equipment, indoor and outdoor pressure difference data and indoor air quality data in real time and accurately through equipment status sensors, air pressure monitoring units and air quality sensors. This set of data reflects the real-time environmental conditions of the target indoor space. After the collection is completed, the environmental perception module transmits the data to the intelligent control center. After receiving the data, the intelligent control center uses the built-in positive pressure control algorithm to analyze and process the data to calculate the target air supply volume required to maintain the indoor air pressure of the target indoor space within the preset air pressure range. Finally, the intelligent control center sends a control instruction to the execution module (variable frequency central air conditioning and electric fresh air valve, etc.) based on the calculated target air supply volume. The execution module adjusts the supply air volume and / or makeup air volume according to the instruction, thereby realizing dynamic control of the indoor air pressure, ensuring that the indoor air pressure is stable within the preset positive pressure range, and improving the indoor air quality at the same time. There is a phenomenon of negative pressure backflow in the related art. For example, when cooking in the kitchen or using an exhaust fan in the bathroom, the operation of the exhaust equipment causes negative pressure in the room, and external odors flow back, affecting the air quality. The method of this embodiment collects indoor and outdoor pressure difference data in real time, and the intelligent control center calculates and regulates the execution module based on this to maintain indoor air pressure stability and effectively solve the problem of negative pressure backflow. In addition, the manual adjustment of the air-conditioning wind speed in the related art is difficult to match the exhaust demand in real time, resulting in an imbalance in the indoor air pressure. In the method of this embodiment, the intelligent control center automatically calculates the target air supply volume and regulates the execution module based on multiple sets of data, realizing intelligent collaboration between devices, matching the exhaust demand in real time, and avoiding air pressure imbalance. This embodiment collects multi-dimensional data in real time, combines intelligent algorithm calculation and precise regulation, and can accurately maintain the indoor air pressure within the preset air pressure range, effectively avoiding situations such as external odor backflow caused by air pressure problems, and creating a stable and comfortable indoor air pressure environment for users. Combined with indoor air quality data, while regulating air pressure, the execution module adjusts the supply air volume and makeup air volume to promptly discharge polluted air and introduce fresh air, effectively improving indoor air quality and protecting user health.

[0064] In an optional embodiment, the intelligent control center dynamically adjusts the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range, including: when a set of data indicates that the concentration of the target object in the indoor air is greater than or equal to the preset concentration threshold, the electric fresh air valve is controlled to supply air according to a first proportion of the target air supply volume, and the variable frequency central air conditioner is controlled to supply air according to a second proportion of the target air supply volume, the sum of the first proportion and the second proportion is equal to 1, and the target object includes at least one of the following: PM2.5, CO2 and VOC, wherein the execution module includes a variable frequency central air conditioner and an electric fresh air valve; when a set of data indicates that the concentration of the target object in the indoor air is less than the preset concentration threshold, if the target supply air volume is greater than the preset air volume, the variable frequency central air conditioner is controlled to supply air according to the preset air volume, and the electric fresh air valve is controlled to supply air according to the target fresh air volume, wherein the sum of the preset air volume and the target fresh air volume is greater than or equal to the target supply air volume.

[0065] In the above embodiment, when the concentration of the target object (such as PM2.5, CO2 or VOC) in the indoor air is greater than or equal to the preset concentration threshold, the electric fresh air valve and the variable frequency central air conditioner work together in a specific proportion to achieve precise air supply and replenishment, effectively improve the air quality, and avoid energy waste caused by excessive air supply; when the concentration of the target object in the indoor air is lower than the preset concentration threshold and the target air supply volume is greater than the preset air volume, the variable frequency central air conditioner is preferentially controlled to supply air at the preset air volume, and fresh air is supplemented through the electric fresh air valve to ensure indoor air pressure balance while improving energy utilization efficiency.

[0066] Based on data collected by the environmental sensing module, the intelligent control center determines the concentration of target elements (such as PM2.5, CO2, and VOCs) in the indoor air. If the data indicates that the target element concentration is greater than or equal to a preset concentration threshold, indicating poor indoor air quality, the intelligent control center allocates the target air supply volume to the electric fresh air valve and the variable-frequency central air conditioner in a specific ratio to improve air quality and maintain stable indoor air pressure. The electric fresh air valve supplies fresh air at a first ratio, introducing fresh air to dilute pollutants, while the variable-frequency central air conditioner supplies air at a second ratio. These two functions work together to improve air quality while maintaining air pressure balance. For example, the first ratio could be 30% (or other ratio) and the second ratio could be 70% (or other ratio). If the data indicates that the target element concentration is less than the preset concentration threshold and the target air supply volume is greater than the preset volume, to avoid energy waste and maintain stable air pressure, the intelligent control center controls the variable-frequency central air conditioner to supply air at the preset volume and the electric fresh air valve to supply air at the target volume. This ensures that the sum of the preset and target air volumes is no less than the target air supply volume, achieving energy-saving operation while meeting indoor environmental requirements. The target object may also be other odorous substances in the air.

[0067] In an optional embodiment, the intelligent control center calculates the target air supply volume based on a set of data, including: calculating the target air supply volume based on the operating status data and indoor and outdoor air pressure difference data included in a set of data according to the following formula: Q1=k×Q0 + β×(∆P1 - ∆P0), wherein Q1 represents the target air supply volume, Q0 represents the current exhaust volume of the target exhaust device, the operating status data includes the current exhaust volume of the target exhaust device, ∆P1 represents the target positive pressure, ∆P0 represents the current indoor and outdoor air pressure data, k represents the compensation coefficient, and β is the preset proportional coefficient.

[0068] In the above embodiment, the target air supply volume is dynamically adjusted by introducing a compensation coefficient and a preset proportional coefficient to ensure that the indoor air pressure can be maintained within the preset pressure range, thereby avoiding the occurrence of negative pressure backflow. The formulated calculation method improves the accuracy of air supply volume control, allowing the system to match exhaust requirements in real time and improve the precision of indoor environmental control. By accurately monitoring and compensating for the indoor and outdoor pressure difference, indoor air quality is improved, providing users with a more comfortable and healthy living environment. The intelligent control center can accurately calculate the target air supply volume based on the current exhaust volume of the target exhaust device and the indoor and outdoor pressure difference data using a positive pressure control algorithm, effectively solving the problem of indoor pressure imbalance in the existing technology.

[0069] The intelligent control center calculates the target air supply volume through a positive pressure control algorithm, taking into account the operating status data of the target exhaust equipment (current exhaust volume) and the indoor and outdoor pressure difference data. In the formula, Q1 is the target air supply volume, which consists of two parts. One part is k×Q0, which is the current exhaust volume Q0 of the target exhaust equipment multiplied by the compensation coefficient k. This is based on the exhaust volume to determine the amount of air supply that needs to be supplemented to maintain the balance of the indoor air, because the amount of air discharged by the exhaust equipment requires a certain amount of fresh air to be supplemented accordingly. The other part is β×(∆P1-∆P0), ∆P1 is the target positive pressure, such as 10Pa, and ∆P0 is the current indoor and outdoor pressure difference, such as -2Pa. The change in the pressure difference is converted into an adjustment in the air supply volume through the preset proportional coefficient β. When the pressure difference changes slightly, it can be assumed that the air volume and the pressure difference are approximately linearly related (i.e., similar to proportional control). β is the preset proportional coefficient, and the unit is m 3 / (h·Pa), for example, β=100m 3 / (h·Pa), which means that every 1Pa pressure difference corresponds to 100m 3 / h air volume change (this is just an example). For different scenarios, β can take different values. The above air volume unit is m 3 / h. If the current indoor and outdoor pressure differential is different from the target positive pressure, the air supply volume needs to be adjusted to bring the indoor pressure to the target positive pressure state, thereby maintaining the indoor positive pressure environment and ensuring indoor air quality and environmental comfort. This embodiment uses a positive pressure control algorithm to accurately calculate the target air supply volume based on the exhaust volume of the target exhaust equipment and the actual indoor and outdoor pressure differential. This achieves precise control of the air supply volume, avoids excessive or insufficient air supply, and improves indoor air quality and energy efficiency.

[0070] Assume that the current exhaust volume of the range hood is Q0=200m 3 / h, target positive pressure ∆P1=10Pa, measured ∆P0=2Pa, compensation coefficient k=1.1, β=20m 3 / (h·Pa), then Q1=1.1 × 200 + 20 × 8=380(m 3 / h).

[0071] In an optional embodiment, the above method further includes: when a group of data has an abnormality, the intelligent control center issues an alarm message.

[0072] In the above embodiment, when a set of data collected by the environmental perception module contains an anomaly, the intelligent control center can promptly issue an alarm. This function effectively improves the safety and reliability of the system, ensuring that users can immediately detect abnormalities in the indoor environment, such as a sharp deterioration in air quality or an abnormal change in air pressure, so that they can take appropriate measures. This embodiment specifically provides an active early warning mechanism for data anomalies, remedying the shortcomings of existing technologies in handling abnormal conditions and significantly improving the user experience and system intelligence.

[0073] The intelligent control center continuously receives information from the environmental sensing module, including operating status data of the target exhaust equipment, indoor and outdoor pressure differential data, and indoor air quality data. It uses preset rules or algorithms to determine whether this data is within a normal range. If any data is found to be outside the normal range or other abnormal conditions occur, the intelligent control center will trigger an alarm mechanism and issue an alarm message to prompt relevant personnel to pay attention and take appropriate measures. This embodiment can monitor various key data of the indoor environment in real time. If the data is abnormal, the intelligent control center can quickly issue an alarm message, allowing relevant personnel to be notified of the problem immediately and making it possible to take timely measures.

[0074] In an optional embodiment, the above method also includes: the intelligent control center establishes a prediction model based on historical data and user usage habits to predict the usage probability of the target exhaust equipment and the change trend of indoor air quality in different time periods; adjusts the operating parameters of the execution module before the target opening time, wherein the target opening time is the opening time of the target exhaust equipment predicted by using the prediction model.

[0075] In the above embodiment, the intelligent control center can establish a prediction model based on historical data and user usage habits, thereby predicting the probability of target exhaust equipment usage at different time periods and the changing trends of indoor air quality in advance. The benefits of this solution are: first, through the establishment of a prediction model, the system can proactively adapt to user habits and achieve intelligent preemptive control; second, by adjusting the operating parameters of the execution module before the target exhaust equipment is turned on, it effectively avoids the indoor air pressure imbalance caused by delayed equipment startup, thereby improving the accuracy of indoor environmental control and user experience.

[0076] The intelligent control center collects and stores historical operational data on target exhaust devices, including device on / off status and operating time at different times. It also records corresponding indoor air quality data and indoor / outdoor air pressure differentials. Furthermore, it analyzes user usage habits for the target exhaust devices across different time periods and scenarios, such as whether users typically use kitchen range hoods for cooking in the morning, noon, and evening, or bathroom exhaust fans after showering. By deeply mining and analyzing this extensive historical data and user behavior data, and applying machine learning and data analysis algorithms, a predictive model is developed. This model predicts the probability of target exhaust device usage at different times and predicts changes in indoor air quality over time. When the predictive model determines that the target exhaust device is about to start at a specific target start-up time, the intelligent control center adjusts the operating parameters of the execution modules (such as the variable-frequency central air conditioner and electric fresh air valve) in advance, such as increasing the supply and makeup air volumes in advance, to ensure optimal indoor pressure and air quality, thereby mitigating the impact of the upcoming device operation on the indoor environment.

[0077] The embodiments of the present application provide an intelligent indoor positive pressure control system and control method based on multi-device linkage. The intelligent control system monitors the operating status of the exhaust equipment and dynamically adjusts the air supply volume of the central air conditioner to maintain indoor positive pressure. It is used to optimize indoor air quality and suppress the spread of odor.

[0078] The system consists of the following: Environmental perception module: includes equipment status sensor, air pressure monitoring unit and air quality sensor, which monitors the operating status of exhaust equipment, indoor and outdoor air pressure difference and air quality parameters in real time.

[0079] Intelligent control center: built-in positive pressure control algorithm, dynamically calculates and sets the target air supply volume of air conditioner to ensure that the indoor positive pressure is maintained within the range of 5-15Pa.

[0080] Execution module: includes variable frequency central air conditioning and electric fresh air valve, which quickly responds to control instructions to achieve precise air supply and fresh air replenishment.

[0081] User interaction module: provides smart terminal APP and voice control interface, supports manual mode switching, air pressure visualization and energy consumption statistics.

[0082] The core control logic is as follows: Positive pressure maintenance algorithm: Through multi-source data fusion, the air supply volume is dynamically adjusted to ensure stable indoor positive pressure.

[0083] Multi-scene mode: including cooking mode, bathing dehumidification mode and silent energy-saving mode, automatically adjusting system operating parameters according to different scenarios.

[0084] Abnormal handling mechanism: When negative pressure persists or equipment conflicts occur, an alarm is triggered and the system operating status is automatically adjusted.

[0085] Intelligent prediction: Machine learning algorithms are used to predict air pressure change trends more than ten seconds or a minute in advance, allowing equipment parameters to be pre-adjusted in advance.

[0086] This application example targets indoor environments with interconnected air zones (such as open-plan residences and commercial spaces). By leveraging distributed environmental sensing modules (including air pressure, device status, and air quality sensors) and intelligent algorithms, it dynamically coordinates air conditioning and exhaust equipment to address the spread of odors caused by negative pressure. Its core innovation lies in upgrading from "single-point control" to "global air pressure balance," making it suitable for modern buildings with high air quality requirements.

[0087] Compared with the prior art, the embodiments of the present application have at least the following advantages: 1) Odor control efficiency: compared with traditional methods, the odor concentration in the living room area is reduced by 72%; 2) Energy consumption performance: the comprehensive energy saving rate reaches 25%, and the peak power consumption is reduced by 40%; 3) Response speed: it takes only 3-5 seconds from detecting the start of the exhaust equipment to completing the air supply adjustment, and the air pressure balance establishment time is shortened by 80%; 4) Compatibility: supports plug-and-play access of mainstream brand air conditioners / exhaust equipment (via Modbus / RS485 protocol); 5) Intelligent control: through machine learning algorithms, the air pressure change trend is predicted more than ten seconds or one minute in advance, and the equipment parameters are pre-adjusted in advance to provide a convenient and intelligent experience.

[0088] The present application also provides a computer-readable storage medium, which stores instructions. When the instructions are executed, any one of the above-mentioned method steps is executed.

[0089] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0090] This application also discloses an electronic device. Figure 3 As shown, Figure 3 The electronic device 300 may include: at least one processor 301 , at least one communication bus 302 , a user interface 303 , at least one network interface 304 , and a memory 305 .

[0091] The communication bus 302 is used to implement the connection and communication between these components.

[0092] The user interface 303 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0093] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0094] The processor 301 may include one or more processing cores. The processor 301 utilizes various interfaces and circuits to connect various components within the electronic device (e.g., a server). It executes instructions, programs, code sets, or instruction sets stored in the memory 305 and accesses data stored in the memory 305 to perform various server functions and process data. Optionally, the processor 301 may be implemented using at least one of the following hardware forms: a digital signal processing (DSP), a field-programmable gate array (FPGA), or a programmable logic array (PLA). The processor 301 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing content displayed on the display; and the modem handles wireless communications. It is understood that the modem may also be implemented as a separate chip, rather than integrated into the processor 301.

[0095] Among them, the memory 305 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 305 may also optionally be at least one storage device located away from the aforementioned processor 301. Refer to Figure 3 The memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module and an application program of an indoor positive pressure intelligent control method.

[0096] exist Figure 3 In the electronic device 300 shown, the user interface 303 is mainly used to provide an input interface for the user and obtain the data input by the user; and the processor 301 can be used to call an application program of an indoor positive pressure intelligent control method stored in the memory 305. When executed by one or more processors 301, the electronic device 300 executes one or more of the methods described in the above embodiments. It should be noted that for the aforementioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for this application.

[0097] The foregoing is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of the present disclosure. In other words, any equivalent variations and modifications made in accordance with the teachings of the present disclosure are still within the scope of the present disclosure. Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the disclosure herein.

[0098] This application is intended to cover any modifications, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the technical field not described in the present disclosure.

Claims

1. An indoor positive pressure intelligent control system, characterized in that: include: An environmental sensing module is used to collect a set of data in real time, including operating status data of the target exhaust equipment, indoor and outdoor air pressure difference data, and indoor air quality data; an intelligent control center electrically connected to the environmental sensing module, configured to obtain the set of data and calculate a target air supply volume based on the set of data, and dynamically adjust the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range; The execution module is electrically connected to the intelligent control center, and is used to receive the control instructions sent by the intelligent control center, and adjust the supply air volume and / or the makeup air volume based on the control instructions; The target exhaust equipment, the intelligent control center and the execution module are all located in the target indoor space. The indoor and outdoor air pressure difference data is used to represent the indoor and outdoor air pressure difference corresponding to the target indoor space, and the indoor air quality data is used to represent the air quality data in the target indoor space.

2. The system according to claim 1, wherein: The environmental perception module includes: a device status sensor, an air pressure monitoring unit and an air quality sensor, wherein: The equipment status sensor is used to monitor the operating status data of the target exhaust equipment; The air pressure monitoring unit is used to monitor the indoor and outdoor air pressure difference data; The air quality sensor is used to monitor the indoor air quality data.

3. The system according to claim 2, characterized in that The air pressure monitoring unit includes one of the following: A pressure differential sensor, the pressure differential sensor being used to monitor the indoor and outdoor air pressure differential data, wherein the pressure differential sensor is installed in the target indoor space; At least one indoor air pressure sensor and at least one outdoor air pressure sensor, wherein the indoor air pressure sensor is installed in the target indoor space, the indoor air pressure sensor is used to monitor indoor air pressure data, the outdoor air pressure sensor is installed at a position on the exterior wall of the building corresponding to the target indoor space, the outdoor air pressure sensor is used to monitor outdoor air pressure data in real time, and the indoor and outdoor air pressure difference data is obtained based on the indoor air pressure data and the outdoor air pressure data.

4. The system according to claim 1, wherein: The execution module includes a variable frequency central air conditioner and an electric fresh air valve. The variable frequency central air conditioner is used to dynamically adjust the air supply volume according to the control instruction, and the electric fresh air valve is used to supplement fresh air.

5. The system according to claim 1, wherein: The intelligent control center has a built-in positive pressure control algorithm, which calculates the target air supply volume in real time based on the indoor and outdoor air pressure difference data and the operating status data of the target exhaust equipment.

6. The system according to claim 5, characterized in that The positive pressure control algorithm includes a machine learning prediction module for predicting user behavior based on historical data to adjust the air supply volume of the execution module in advance.

7. The system according to claim 1, wherein: The intelligent control center is used to dynamically control the execution module in the following ways: When the set of data indicates that the concentration of the target object in the indoor air is greater than or equal to a preset concentration threshold, the electric fresh air valve is controlled to supply air according to a first ratio of the target air supply volume, and the variable frequency central air conditioner is controlled to supply air according to a second ratio of the target air supply volume, where the sum of the first ratio and the second ratio is equal to 1, and the target object includes at least one of the following: PM2.5, CO2, and VOC, wherein the execution module includes the variable frequency central air conditioner and the electric fresh air valve; When the set of data indicates that the concentration of the target object in the indoor air is less than the preset concentration threshold, if the target air supply volume is greater than the preset air volume, the variable frequency central air conditioner is controlled to supply air according to the preset air volume, and the electric fresh air valve is controlled to supply air according to the target fresh air volume, wherein the sum of the preset air volume and the target fresh air volume is greater than or equal to the target supply air volume.

8. An intelligent control method for indoor positive pressure, characterized in that: The system according to any one of claims 1 to 7, comprising: The environmental perception module collects a set of data in real time and transmits it to the intelligent control center, wherein the set of data includes the operating status data of the target exhaust equipment, the indoor and outdoor pressure difference data and the indoor air quality data; The intelligent control center calculates the target air supply volume based on the set of data; The intelligent control center dynamically adjusts the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range.

9. The method according to claim 8, characterized in that The intelligent control center dynamically adjusts the execution module according to the target air supply volume so that the indoor air pressure of the target indoor space is maintained within a preset positive pressure range, including: When the set of data indicates that the concentration of the target object in the indoor air is greater than or equal to a preset concentration threshold, the electric fresh air valve is controlled to supply air according to a first ratio of the target air supply volume, and the variable frequency central air conditioner is controlled to supply air according to a second ratio of the target air supply volume, where the sum of the first ratio and the second ratio is equal to 1, and the target object includes at least one of the following: PM2.5, CO2, and VOC, wherein the execution module includes the variable frequency central air conditioner and the electric fresh air valve; When the set of data indicates that the concentration of the target object in the indoor air is less than the preset concentration threshold, if the target air supply volume is greater than the preset air volume, the variable frequency central air conditioner is controlled to supply air according to the preset air volume, and the electric fresh air valve is controlled to supply air according to the target fresh air volume, wherein the sum of the preset air volume and the target fresh air volume is greater than or equal to the target supply air volume.

10. The method according to claim 8, characterized in that The intelligent control center calculates the target air supply volume based on the set of data, including: The target air supply volume is calculated based on the operating status data and the indoor and outdoor air pressure difference data included in the set of data according to the following formula: Q1=k×Q0 + β×(ΔP1 - ΔP0), Among them, Q1 represents the target air supply volume, Q0 represents the current exhaust volume of the target exhaust device, the operating status data includes the current exhaust volume of the target exhaust device, ∆P1 represents the target positive pressure, ∆P0 represents the current indoor and outdoor air pressure data, k represents the compensation coefficient, and β is a preset proportional coefficient.

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