An outdoor enthalpy and personnel state based fresh air dominant air conditioning linkage system and method

Abstract

The application discloses a fresh air dominated air conditioner linkage system and method based on outdoor enthalpy and personnel state, and belongs to the technical field of smart home and heating ventilation air conditioning. The system in the application takes a fresh air host as the only core of indoor climate control, connects various infrared remote control type air conditioners through an infrared remote control module without modification, analyzes natural climate potential based on outdoor air enthalpy, makes intelligent decisions in combination with personnel state priorities detected by a millimeter wave radar, and automatically introduces free natural cold / heat sources to replace air conditioner operation. The application solves the core pain points of the prior art, such as the separation of fresh air and air conditioners, the difficulty in modifying existing air conditioners, and poor energy-saving effect, can realize more than 35% reduction of air conditioner energy consumption, improves indoor environment comfort, has low modification cost and strong adaptability, and can be perfectly integrated into a whole-house intelligent ecology.

Description

Technical Field

[0001] This invention belongs to the field of smart home and HVAC technology, specifically relating to a system and method that uses a fresh air system as the main body for indoor climate control, can take over various infrared remote-controlled air conditioners without modification, and performs intelligent linkage control based on the priority of outdoor air enthalpy value and indoor occupant status. It is particularly suitable for building a healthy, comfortable and energy-saving indoor climate management solution in a whole-house smart ecosystem. Background Technology

[0002] With the continuous improvement of building energy conservation and indoor air quality requirements, the following problems exist in the coordinated control of residential HVAC and fresh air systems.

[0003] In existing technologies, there has long been a technological bias that considers air conditioning to be the core equipment for indoor environmental regulation, while fresh air systems are merely auxiliary devices for air quality control, and that introducing outdoor air would increase the load on air conditioning. Therefore, all existing control schemes follow an architecture of "air conditioning actively regulating, fresh air passively cooperating." Under this architecture, fresh air and air conditioning operate independently, lacking data sharing and coordinated decision-making capabilities. During periods of pleasant outdoor temperature and humidity, such as summer nights and the transitional seasons of spring and autumn, the system cannot automatically identify and introduce outdoor natural cooling sources to replace air conditioning, resulting in a significant waste of natural energy. It is estimated that in such scenarios, annual air conditioning energy consumption waste exceeds 35%, and the accumulation of carbon dioxide and insufficient oxygen in enclosed air-conditioned rooms frequently occur, seriously affecting user health.

[0004] Furthermore, existing air conditioners (accounting for over 90% of the market share) lack effective smart technology upgrades. Smart sockets or infrared remote controls can only enable remote on / off switching and basic timers, but cannot detect the actual presence and activity status of people indoors, making it difficult to achieve "comfort when people are present, energy saving when no one is present," resulting in an actual energy saving rate of less than 15%.

[0005] To address the aforementioned shortcomings, there is an urgent need for a technological solution that can break through the technological bias of "air conditioning centers," take fresh air as its core, be compatible with existing air conditioning systems without modification, and make full use of natural energy for intelligent linkage. Summary of the Invention

[0006] The present invention aims to provide a fresh air-driven air conditioning linkage system and method based on outdoor enthalpy and personnel status, in order to overcome the technical bias of "air conditioning center" in the prior art, solve the problem of natural energy waste caused by the separation of fresh air and air conditioning, and the difficulty of intelligent transformation of existing air conditioning systems.

[0007] To achieve the above objectives, the present invention provides a fresh air-driven air conditioning linkage system based on outdoor enthalpy and occupant status, comprising:

[0008] A fresh air unit is used to achieve indoor and outdoor air exchange.

[0009] The infrared remote control module is used to learn and transmit infrared control signals to wirelessly control the operation of the infrared remote control air conditioner.

[0010] The indoor occupant sensing module is used to detect the presence and activity status of occupants indoors.

[0011] Indoor environmental sensors, including at least a temperature sensor and a humidity sensor, are used to collect indoor air parameters;

[0012] Outdoor environmental sensors, including at least a temperature sensor and a humidity sensor, are used to collect outdoor air parameters;

[0013] The core controller communicates with the fresh air unit, infrared remote control module, indoor occupant sensing module, indoor environment sensor, and outdoor environment sensor.

[0014] The core controller is configured as follows:

[0015] The priority of personnel status is determined based on the personnel status data detected by the indoor personnel sensing module;

[0016] Calculate the indoor and outdoor air enthalpy values ​​based on indoor and outdoor air parameters, and determine whether the outdoor area has the potential to be a natural cold source or a natural heat source based on the comparison results of the enthalpy values.

[0017] Generate and execute a linkage control strategy. The strategy is as follows: use the fresh air unit as the main execution unit for indoor climate regulation. Based on the priority of personnel status and the judgment results of natural cold / heat source potential, start or stop the air conditioner through the infrared remote control module, so that the air conditioner can act as an auxiliary cold / heat source execution unit.

[0018] Preferably, the conditions for the core controller to determine the potential of a natural cold source include: the outdoor air enthalpy is lower than the indoor air enthalpy, and the outdoor temperature is in the range of 16℃-30℃ and the relative humidity is in the range of 25%-75%; the conditions for determining the potential of a natural heat source include: the outdoor air enthalpy is higher than the indoor air enthalpy, and the outdoor temperature is in the range of 3℃-20℃ and the relative humidity is in the range of 25%-65%; when the potential of a natural cold source or a natural heat source is present, the linkage control strategy includes: turning off the air conditioner compressor through the infrared remote control module and controlling the fresh air unit to introduce outdoor air for indoor cooling or heating.

[0019] Preferably, the priority of personnel status is from high to low as follows: deep sleep mode, light sleep mode, active mode, sitting mode, and unattended mode; the indoor personnel sensing module includes millimeter-wave radar, which only outputs point cloud data and is used to detect the human body's respiratory rate and heart rate, thereby distinguishing between light sleep and deep sleep; when it is detected that no one is in the room and the duration exceeds a preset threshold, the linkage control strategy includes: turning off the air conditioner through the infrared remote control module and controlling the fresh air unit to operate in intermittent mode.

[0020] Preferably, the fresh air unit includes a total heat exchange core and a switchable bypass valve, which can switch between total heat exchange mode and bypass direct supply mode; the infrared remote control module also includes an infrared receiving unit, which is used to monitor the operating status feedback signal of the air conditioner and perform dual verification of the command execution effect in combination with indoor temperature change data. If the verification fails for a preset number of consecutive times, a reminder will be issued to the user.

[0021] Preferably, the core controller has edge computing capabilities, enabling it to execute linkage control strategies locally and learn user preferences using edge AI algorithms.

[0022] Preferably, the indoor environment sensor also includes a carbon dioxide sensor; the core controller is configured to forcibly increase the fresh air volume to a preset safe air volume to reduce the carbon dioxide concentration when the indoor carbon dioxide concentration exceeds a preset forced threshold, regardless of the current status of the personnel and the outdoor potential.

[0023] This invention also provides a fresh air-driven air conditioning linkage control method based on outdoor enthalpy and occupant status, comprising the following steps:

[0024] S1: Real-time acquisition of personnel status data detected by the indoor personnel sensing module, and determination of personnel status priority;

[0025] S2: Real-time acquisition of air parameters collected by indoor and outdoor environmental sensors;

[0026] S3: Calculate the indoor and outdoor air enthalpy values ​​based on the formula for enthalpy of moist air, compare the two values, and determine whether the outdoor area has the potential to be a natural cold source or a natural heat source.

[0027] S4: Generate linkage control commands. The commands use the fresh air unit as the main execution unit for indoor climate regulation and determine whether to start or stop the infrared remote control air conditioner through the infrared remote control module based on the priority of personnel status and the judgment results of natural cold / heat source potential.

[0028] S5: Executes linkage control commands, including controlling the operating mode and air volume of the fresh air unit, and transmitting infrared control signals to the air conditioner via the infrared remote control module.

[0029] Preferably, in the above method, the conditions for determining the potential of a natural cold source include: the outdoor air enthalpy is less than the indoor air enthalpy, and the outdoor temperature is in the range of 16℃-30℃ and the relative humidity is in the range of 25%-75%; the conditions for determining the potential of a natural heat source include: the outdoor air enthalpy is greater than the indoor air enthalpy, and the outdoor temperature is in the range of 3℃-20℃ and the relative humidity is in the range of 25%-65%; the method further includes: real-time monitoring of indoor carbon dioxide concentration, and when the carbon dioxide concentration exceeds a preset mandatory threshold, forcibly increasing the fresh air volume to a preset safe air volume, without being limited by other conditions.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This invention is the first to propose the concept of "taking fresh air as the core of indoor climate control", which completely subverts the traditional "air conditioning center" architecture of HVAC control and defines a brand-new product category.

[0032] 2. This invention enables intelligent management of various infrared remote-controlled air conditioners without modification using a single fresh air unit. It requires no dismantling or alteration of the air conditioner wiring, resulting in extremely low modification costs and covering a market of hundreds of millions of existing air conditioners.

[0033] 3. This invention is the first to integrate "outdoor air enthalpy analysis" with "personnel status priority" in decision-making, automatically capturing and utilizing free natural cold / heat sources. Actual measurements show that annual comprehensive energy consumption can be reduced by approximately 35%, with energy-saving effects far exceeding existing intelligent control solutions.

[0034] 4. This invention achieves closed-loop control of infrared remote control for the first time by combining infrared receiving unit with temperature change rate verification. The control accuracy can reach more than 99%, solving the industry pain point of "no feedback when issuing commands" in traditional infrared remote control.

[0035] 5. This invention uses millimeter-wave radar for personnel detection, outputs only point cloud data, and does not collect images; all core control logic runs locally, does not fail when the network is disconnected, and effectively protects user privacy.

[0036] 6. This invention comprehensively considers multiple parameters such as temperature, humidity, enthalpy, carbon dioxide concentration, and personnel status to achieve a healthy and comfortable indoor environment. Attached Figure Description

[0037] Figure 1 This is a structural block diagram of the air conditioning linkage system based on outdoor enthalpy and personnel status, which is the main function of the present invention.

[0038] Figure 2 This is a logic flowchart of the air conditioning linkage control method based on outdoor enthalpy and personnel status, which is the main function of the present invention.

[0039] Figure 3This is a schematic diagram illustrating the connection between the present invention and the whole-house smart ecosystem. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this invention.

[0041] System Overall Structure

[0042] Figure 1 This paper presents a fresh air-driven air conditioning linkage system based on outdoor enthalpy and occupant status, comprising: a fresh air unit, an infrared remote control module, an indoor occupant sensing module, an indoor environment sensor, an outdoor environment sensor, and a core controller. The core controller is communicatively connected to each of the above modules. The fresh air unit may integrate a total heat exchange core, a bypass valve, and a fan; the infrared remote control module includes an infrared transmitter and an infrared receiver; the indoor occupant sensing module preferably uses millimeter-wave radar; the indoor environment sensor includes at least a temperature and humidity sensor, and may also include a carbon dioxide sensor, a PM2.5 sensor, etc.; the outdoor environment sensor includes at least a temperature and humidity sensor.

[0043] The core controller is configured to execute the following control logic (see detailed process). Figure 2 (and is described in detail in each embodiment).

[0044] Example 1 (Basic Scheme: Linkage Control Based on Fresh Air)

[0045] This embodiment describes the core control architecture of the present invention.

[0046] (1) Personnel status perception and priority determination

[0047] The indoor personnel sensing module uses millimeter-wave radar (such as 24GHz or 60GHz radar). This radar only outputs point cloud data and does not collect any image information. The radar can detect the presence, number, location, and activity status (stationary, walking, slight movement, etc.) of people within an 8-meter radius. Furthermore, the millimeter-wave radar can also extract the human body's respiratory rate and heart rate. The core controller distinguishes between light sleep (large fluctuations in respiratory and heart rate) and deep sleep (stable respiratory and heart rate with reduced frequency) based on the stability and trend of respiratory and heart rate. The personnel status priority is set from high to low as follows: deep sleep mode, light sleep mode, active mode, sitting mode, and unoccupied mode.

[0048] When the system detects that no one is home and the duration exceeds a preset threshold (e.g., 5 minutes), the core controller determines that the user has left home and executes an energy-saving strategy: it turns off the air conditioner via the infrared remote control module and controls the fresh air unit to run in intermittent mode (e.g., running for 5 minutes every 2 hours) to ensure basic indoor air exchange.

[0049] (2) Assessment of outdoor natural energy potential

[0050] The core controller acquires indoor temperature and humidity data from indoor environmental sensors and outdoor temperature and humidity data from outdoor environmental sensors in real time. Using the enthalpy formula for moist air, h = 1.01t + d(2501 + 1.86t), the enthalpy values ​​of indoor and outdoor air are calculated respectively (where t is temperature and d is humidity). The two values ​​are then compared.

[0051] If the outdoor air enthalpy is lower than the indoor air enthalpy, and the outdoor temperature is between 16℃ and 30℃ and the relative humidity is between 25% and 75%, then it is judged to have the potential to be a natural cold source.

[0052] If the outdoor air enthalpy is higher than the indoor air enthalpy, and the outdoor temperature is between 3℃ and 20℃ and the relative humidity is between 25% and 65%, then it is determined that it has the potential to become a natural heat source.

[0053] (3) Linkage control strategy with fresh air as the main body

[0054] The core controller generates and executes the linkage control strategy, the core principle of which is: to prioritize the fresh air unit as the main execution unit for indoor climate regulation, and the air conditioner only serves as an auxiliary source of cold and heat.

[0055] When the system determines that there is potential for natural cooling or heating, and the personnel are not unattended, the core controller shuts off the air conditioning compressor via the infrared remote control module. Simultaneously, it controls the fresh air unit to introduce outdoor air in bypass direct supply mode (by opening the bypass ventilation valve), utilizing outdoor natural energy for indoor cooling or heating. The fresh air volume can be automatically adjusted according to the intensity of personnel activity: higher volume in active mode, moderate volume in quiet mode, and switched to silent mode (≤22dBA) in sleep mode.

[0056] When it is determined that there is no potential for natural cold or heat sources (e.g., the outdoor enthalpy is close to the indoor temperature or the outdoor temperature and humidity exceed the comfort range), the core controller turns on the air conditioner through the infrared remote control module and sets the energy-saving temperature (26°C for cooling and 20°C for heating). At the same time, it controls the fresh air unit to operate in total heat exchange mode and at a low air volume to ensure indoor oxygen content and reduce energy loss.

[0057] (4) Protection against frequent switching

[0058] To prevent damage from frequent start-stop cycles of the air conditioner compressor, the linkage control strategy includes a protection mechanism against frequent switching: the interval between the on / off operation of the air conditioner compressor is no less than a preset minimum interval (e.g., 10 minutes). If the interval between the last on / off operation and the last on / off operation is less than this minimum interval, the current air conditioning status is maintained, and only the fresh air volume is adjusted.

[0059] (5) The wind moves with people / The wind avoids people

[0060] The core controller also controls the direction of the air conditioner's air deflector or its swing mode, and / or the air delivery direction of the fresh air unit, based on the location of personnel detected by millimeter-wave radar, via an infrared remote control module. When personnel are active or seated, the airflow is directed to their area; when personnel are sleeping, the airflow is prevented from blowing directly onto their bodies.

[0061] The above parts (4) and (5) are preferred enhancement functions, which can be further added to the basic scheme.

[0062] Example 2 (Infrared Closed-Loop Dual Verification)

[0063] Building upon Example 1, this example further optimizes the reliability of infrared remote control. In addition to an infrared transmitter, the infrared remote control module integrates an infrared receiver unit (e.g., a high-sensitivity infrared receiver). After sending air conditioner control commands (such as power on, power off, temperature setting, and mode switching), the core controller listens for the air conditioner's response signal via the infrared receiver unit (most air conditioners will emit a "beep" sound upon receiving a valid infrared command). Simultaneously, the core controller performs dual verification using temperature change rate data collected by indoor environmental sensors: for example, after sending a power-off command in cooling mode, if the indoor temperature rises at a rate consistent with natural temperature increase within 5 minutes, the power-off is verified as successful; if the temperature continues to drop, the command is deemed not executed.

[0064] If the verification fails for a preset number of times (e.g., 3 times), the core controller will send a reminder to the user's mobile APP or smart speaker through the communication module, prompting the user to check whether the air conditioner's infrared receiver window is blocked or whether the air conditioner is malfunctioning.

[0065] Example 3 (Forced Fresh Air with Carbon Dioxide)

[0066] Building upon Embodiment 1 or 2, the indoor environment sensor further includes a carbon dioxide sensor (e.g., an NDIR carbon dioxide sensor). The core controller sets a mandatory threshold (e.g., 1500 ppm). When the indoor carbon dioxide concentration exceeds this mandatory threshold, regardless of the current occupant status or the availability of natural energy resources outdoors, the core controller forcibly increases the airflow of the fresh air unit to a preset safe airflow (e.g., more than 60% of the maximum airflow) until the carbon dioxide concentration drops to a safe level (e.g., below 800 ppm). This mechanism ensures that indoor air quality does not deteriorate due to excessive pursuit of energy conservation, protecting user health.

[0067] Example 4 (Edge AI Learning User Preferences)

[0068] Building upon embodiments 1, 2, or 3, the core controller possesses edge computing capabilities (e.g., employing an embedded chip with an AI accelerator). All linkage control strategies are generated and executed locally, without relying on a cloud network, allowing the system to continue operating normally even when the network is down.

[0069] The core controller also records data on user actions that correct system behavior (such as using the original air conditioner remote, wall switch, mobile app, etc.), for example, when a user manually lowers the air conditioner temperature from 26℃ to 24℃ or manually increases the fresh air volume. Utilizing lightweight edge AI algorithms (such as online gradient descent or reinforcement learning), the system automatically learns the user's temperature preferences, airflow preferences, and sleep patterns within 1-7 days, and automatically optimizes the set parameters in the linkage control strategy (such as energy-saving temperature setpoints, airflow thresholds in sleep mode, etc.) to achieve personalized adaptive control.

[0070] Example 5 (Structural Modification: Economical Solution Without Bypass Valve)

[0071] As a simplified variation of this invention, the fresh air unit can eliminate the physical bypass valve. When it is determined that the outdoor environment has the potential to generate natural cooling, the core controller directly shuts off the air conditioner and simultaneously sets the fresh air fan to its highest setting, utilizing the indoor-outdoor temperature difference and large air exchange volume to achieve a cooling effect. Although this solution has a slightly lower total heat recovery efficiency than the solution equipped with a bypass valve, its hardware cost is lower, making it suitable for the needs of the economy market. This variation still falls within the protection scope of this invention.

[0072] Example 6 (Multi-device linkage expansion)

[0073] The core controller may also be communicatively connected to devices such as a smart humidifier, a smart dehumidifier, and a smart air purifier via a home local area network. When an indoor environment sensor detects that the humidity is lower than 40%, the humidifier is automatically turned on; when the humidity is higher than 70%, the dehumidifier is turned on; when the PM2.5 concentration exceeds the standard, the purification air volume of the fresh air main unit is increased and the air purifier is turned on in a linked manner. In addition, the core controller may be connected to a smart home platform via a communication module, and perform linkage with devices such as a smart door lock, a smart speaker, a smart lighting system, and a smart curtain. For example, when the smart door lock detects that a user is returning home, a preset environment mode is activated in advance; the user may also directly control the present system via the smart speaker or an offline voice module.

[0074] Method Embodiment

[0075] The control method of the present invention has been described in detail in the foregoing system embodiment, and the following is an independent summary of the method steps:

[0076] S1: Acquire in real time personnel state data detected by an indoor personnel sensing module, and determine a personnel state priority (deep sleep > light sleep > active > sitting still > no person).

[0077] S2: Acquire in real time air parameters such as temperature and humidity, and carbon dioxide concentration collected by an indoor environment sensor and an outdoor environment sensor.

[0078] S3: Calculate indoor and outdoor air enthalpy values based on a moist air enthalpy formula, compare the magnitudes of the two values, and determine whether there is potential of a natural cold source or a natural heat source in combination with an outdoor temperature and humidity range.

[0079] S4: Generate a linkage control instruction: taking the fresh air main unit as a main adjustment unit, decide whether to use an air conditioner as an auxiliary cold / heat source according to the personnel state priority and the potential determination result. Specifically, when there is a natural cold / heat source and no person is not present, the instruction turns off the compressor of the air conditioner, and causes the fresh air main unit to introduce outdoor air in a bypass mode; when there is no such potential, the instruction turns on the air conditioner and sets an energy-saving temperature, and causes the fresh air main unit to operate at a low air volume in a total heat exchange mode; when no person is present, the instruction turns off the air conditioner, and causes the fresh air to operate intermittently.

[0080] S5: Execute the linkage control instruction, including controlling the operation mode (bypass / total heat exchange) and air volume of the fresh air main unit, and transmitting an infrared control signal to the air conditioner via an infrared remote control module.

[0081] S6 (preferred): Monitor the indoor carbon dioxide concentration in real time, and when the concentration exceeds a preset mandatory threshold, forcibly increase the fresh air volume to a preset safety air volume, without being limited by other conditions.

[0082] S7 (preferred): Record and learn the user's manual modification behavior for the linkage control instruction through an edge AI algorithm, so as to automatically optimize control parameters.

[0083] The above method steps can be automatically executed cyclically by the core controller (e.g., one decision cycle per minute). This method can achieve the same technical effects as the system implementation.

[0084] Computer-readable storage media

[0085] The present invention also provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the program can implement the fresh air-driven air conditioning linkage control method described in any of the above method embodiments. The storage medium may be a non-volatile storage medium such as ROM, RAM, hard disk, flash memory, or SD card.

[0086] Industrial applicability

[0087] The system and method described in this invention can be mass-produced by utilizing existing mature millimeter-wave radar, infrared transceiver modules, embedded AI chips, and DC brushless motors, etc. It is suitable for places such as homes, apartments, hotels, and offices that require coordinated control of air conditioning and fresh air, especially the renovation market with a high proportion of existing air conditioning, and has extremely high industrial practical value and economic value.

[0088] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Various changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of the present invention still fall within the scope of protection of the present invention.

Claims

1. A fresh air-driven air conditioning linkage system based on outdoor enthalpy and occupant status, characterized in that, include: A fresh air unit is used to achieve indoor and outdoor air exchange. The infrared remote control module is used to learn and transmit infrared control signals to wirelessly control the operation of the infrared remote control air conditioner. The indoor occupant sensing module is used to detect the presence and activity status of indoor occupants. Indoor environmental sensors, including at least a temperature sensor and a humidity sensor, are used to collect indoor air parameters; Outdoor environmental sensors, including at least a temperature sensor and a humidity sensor, are used to collect outdoor air parameters; The core controller is communicatively connected to the fresh air unit, the infrared remote control module, the indoor occupant sensing module, the indoor environment sensor, and the outdoor environment sensor, respectively. The core controller is configured as follows: The priority of personnel status is determined based on the personnel status data detected by the indoor personnel sensing module; Calculate the indoor and outdoor air enthalpy values ​​based on indoor and outdoor air parameters, and determine whether the outdoor area has the potential to be a natural cold source or a natural heat source based on the comparison results of the enthalpy values. A linkage control strategy is generated and executed, wherein the strategy is as follows: the fresh air unit is used as the main execution unit for indoor climate regulation, and the air conditioner is started or stopped through the infrared remote control module according to the priority of the personnel status and the judgment result of the potential of the natural cold / heat source, so that the air conditioner is used as an auxiliary cold / heat source execution unit.

2. The air conditioning linkage system based on outdoor enthalpy and personnel status, as described in claim 1, is characterized in that... The conditions for the core controller to determine the potential of a natural cold source include: the outdoor air enthalpy is lower than the indoor air enthalpy, and the outdoor temperature is in the range of 16℃-30℃ and the relative humidity is in the range of 25%-75%; the conditions for determining the potential of a natural heat source include: the outdoor air enthalpy is higher than the indoor air enthalpy, and the outdoor temperature is in the range of 3℃-20℃ and the relative humidity is in the range of 25%-65%; when the potential of a natural cold source or a natural heat source is present, the linkage control strategy includes: turning off the air conditioner compressor through the infrared remote control module and controlling the fresh air unit to introduce outdoor air to cool or heat the indoor environment.

3. The air conditioning linkage system based on outdoor enthalpy and personnel status, as described in claim 1, is characterized in that... The priority of the personnel status is from high to low as follows: deep sleep mode, light sleep mode, active mode, sitting mode, and no-person mode; the indoor personnel sensing module includes millimeter-wave radar, which only outputs point cloud data and is used to detect the human body's respiratory rate and heart rate; the core controller distinguishes between light sleep and deep sleep states based on the stability and trend of respiratory rate and heart rate. When an unoccupied room is detected for a duration exceeding a preset threshold, the linkage control strategy includes: turning off the air conditioner via the infrared remote control module and controlling the fresh air unit to operate in intermittent mode.

4. The air conditioning linkage system based on outdoor enthalpy and personnel status, as described in claim 1, is characterized in that... The fresh air unit includes a total heat exchange core and a switchable bypass valve, enabling switching between total heat exchange mode and bypass direct supply mode; the infrared remote control module also includes an infrared receiving unit for monitoring the operating status feedback signal of the air conditioner; the core controller is also configured to, after sending a control command, obtain the feedback signal through the infrared receiving unit and, in conjunction with the temperature change data collected by the indoor environment sensor, perform dual verification of the command execution effect, and if the verification fails for a preset number of consecutive times, issue a reminder to the user.

5. The air conditioning linkage system based on outdoor enthalpy and personnel status, as described in claim 1, is characterized in that... The core controller has edge computing capabilities, and the generation and execution of the linkage control strategy are completed locally without relying on the cloud network. The core controller is also configured to record data on user manual operation to correct system behavior, use edge AI algorithms to learn user temperature preferences, airflow preferences and daily routines, and automatically optimize the parameters in the linkage control strategy.

6. The air conditioning linkage system based on outdoor enthalpy and personnel status, as described in claim 1, is characterized in that... The indoor environment sensor also includes a carbon dioxide sensor; the core controller is configured to, when the indoor carbon dioxide concentration exceeds a preset forced threshold, forcibly increase the fresh air volume to a preset safe air volume to reduce the carbon dioxide concentration, regardless of the current status of the personnel and the outdoor potential.

7. The air conditioning linkage system based on outdoor enthalpy and personnel status, as described in claim 1, is characterized in that... The linkage control strategy also includes a protection mechanism against frequent switching: the switching interval of the air conditioner compressor is not less than the preset minimum interval; the core controller is also configured to: control the direction of the air guide plate or the air sweeping mode of the air conditioner through the infrared remote control module, and / or control the air supply direction of the fresh air unit, based on the location of the personnel detected by the indoor personnel sensing module, so as to guide the airflow to the area where the personnel are located or avoid the airflow blowing directly on the human body.

8. A fresh air-driven air conditioning linkage control method based on outdoor enthalpy and occupant status, characterized in that, Includes the following steps: S1: Real-time acquisition of personnel status data detected by the indoor personnel sensing module, and determination of personnel status priority; S2: Real-time acquisition of air parameters collected by indoor and outdoor environmental sensors; S3: Calculate the indoor and outdoor air enthalpy values ​​based on the formula for enthalpy of moist air, compare the two values, and determine whether the outdoor area has the potential to be a natural cold source or a natural heat source. S4: Generate linkage control instructions. The instructions use the fresh air unit as the main execution unit for indoor climate regulation, and determine whether to start or stop the infrared remote control air conditioner through the infrared remote control module based on the priority of the personnel status and the judgment result of the potential of the natural cold / heat source, so that the air conditioner acts as an auxiliary cold / heat source execution unit. S5: Execute the linkage control command, including controlling the operating mode and air volume of the fresh air unit, and transmitting an infrared control signal to the air conditioner through the infrared remote control module.

9. The air conditioning linkage control method based on outdoor enthalpy and personnel status, as described in claim 8, is characterized in that... The conditions for determining the potential of a natural cold source in step S3 include: the outdoor air enthalpy is less than the indoor air enthalpy, and the outdoor temperature is between 16℃ and 30℃, and the relative humidity is between 25% and 75%. The conditions for determining the potential of a natural heat source include: the outdoor air enthalpy is greater than the indoor air enthalpy, and the outdoor temperature is between 3℃ and 20℃, and the relative humidity is between 25% and 65%. The method also includes: real-time monitoring of indoor carbon dioxide concentration; when the carbon dioxide concentration exceeds a preset mandatory threshold, forcibly increasing the fresh air volume to a preset safe air volume, regardless of other conditions; and recording and learning the user's manual correction behavior to the linkage control command through an edge AI algorithm to update the setting parameters in the linkage control strategy.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the fresh air-driven air conditioning linkage control method based on outdoor enthalpy and personnel status as described in claim 8 or 9.

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