Air purification control method and device based on air conditioner, air conditioner and medium

Abstract

The invention discloses an air purification control method and device based on an air conditioner, the air conditioner and a medium. The method comprises the steps that when an air quality detection value is larger than or equal to a first target threshold value, meanwhile, it is detected that people exist in a working area where the air conditioner is located, or the current moment reaches the target moment, an air purification mode is controlled, the target moment is used for indicating an advanced starting moment of the air purification mode; or responding to the air purification instruction sent by the remote control equipment, and controlling to enter the air purification mode. According to the invention, a control mechanism capable of actively sensing the air quality, deciding and executing the air purification mode is constructed by combining multiple sensors (the air quality detection module and the human body existence detection module) and the purification efficiency of the user behavior learning and purification module, so that the on-demand active execution of the air purification mode is realized, and the air purification effect is effectively improved.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air conditioner control technology, and in particular to an air purification control method, device, air conditioner, and medium based on an air conditioner. Background Technology

[0002] In existing technologies, the air purification mode of air conditioners is often activated after the air conditioner starts cooling or heating, and it cannot actively sense changes in air quality, which limits its use scenarios and results in poor purification effect. Summary of the Invention

[0003] This application provides an air purification control method, device, air conditioner, and medium based on an air conditioner, which can effectively improve the purification effect.

[0004] In a first aspect, embodiments of this application provide an air purification control method based on an air conditioner. This method is applied to a control device of the air conditioner, which includes an air quality detection module, a human presence detection module, and a purification module. The control device is communicatively connected to a remote control device, the human presence detection module, the purification module, and the air quality detection module, respectively. The method includes:

[0005] When the detection value output by the air quality detection module is greater than or equal to the first target threshold, and the human presence detection module detects that there is someone in the work area where the air conditioner is located, or the current time reaches the target time, the air purification mode is activated. The target time is used to indicate the early start time of the air purification mode. The target time is determined based on the purification efficiency of the purification module, the first target threshold, the detection value, and a reference time. The reference time is the expected time when someone enters the work area. or, In response to an air purification command sent by the remote control device, the device is controlled to enter air purification mode.

[0006] In some embodiments, the air quality detection module is a first PM2.5 sensor, the human presence detection module is a radar sensor, the remote control device is bound to a target user, the detected value is the PM2.5 value, the first target threshold is a first threshold set by the target user through the remote control device or a second threshold determined by the radar sensor based on the working scene of the working area, and the target time is determined according to the following steps: Record the first moment when the target user leaves the work area and the second moment when the target user enters the work area within the first time period; The reference time is determined based on the first time and the second time. A reference threshold is determined from the first threshold and the second threshold, wherein the reference threshold is the threshold with the smallest value among the first threshold and the second threshold; Calculate the first difference between the current PM2.5 value and the reference threshold, and divide the first difference by the purification efficiency to obtain the advance activation time; The target time is obtained by subtracting the advance start time from the reference time.

[0007] In some embodiments, the purification efficiency of the purification module is calculated according to the following steps: Determine the third and fourth moments, and calculate the duration difference between the fourth and third moments, wherein the third and fourth moments are the boundary moments of the second time period, the third moment is earlier than the fourth moment, and the second time period is the previous purification cycle of the purification module. Determine the first PM2.5 value corresponding to the third time point and the second PM2.5 value at the fourth time point, and calculate the second difference between the first PM2.5 value and the second PM2.5 value; The purification efficiency is obtained by dividing the second difference by the duration difference.

[0008] In some embodiments, the air conditioner records a first reference purification efficiency of the purification module for different purification cycles. After the control enters the air purification mode, the method further includes: Select a preset number of target purification efficiencies from all the reference purification efficiencies, wherein the target purification efficiency is the first reference purification efficiency corresponding to the purification cycle before the current air purification mode is entered. Divide the target purification efficiency by the preset number to obtain the second target threshold; If the current purification efficiency of the purification module is less than the second target threshold, a door and window closing reminder message is generated and sent to the remote control device.

[0009] In some embodiments, after the control enters the air purification mode, the method further includes: If the current PM2.5 value is less than the first target threshold, and the air conditioner does not receive a start signal from the remote control device, the air purification mode will be turned off. or, When the current PM2.5 value is less than the first target threshold, when the air conditioner receives a start signal from the remote control device including the functional mode requirement, and when it is determined that the functional mode requirement is met, the air purification mode is turned off. or, If the current time is later than the reference time for more than a preset duration threshold, the air purification mode will be turned off regardless of whether the current PM2.5 value is less than the first target threshold.

[0010] In some embodiments, after the control enters the air purification mode, the method further includes: The initial purification efficiency of the air conditioner is multiplied by a preset ratio value to obtain the second reference purification efficiency. If the current purification efficiency of the purification module is less than the second reference purification efficiency, a replacement purification module reminder message is generated and sent to the remote control device.

[0011] In some embodiments, the air conditioner is equipped with a sterilization module, and the control device is communicatively connected to both a second PM2.5 sensor and the sterilization module. The second PM2.5 sensor is located in the working area. The method further includes: If the temperature difference between the current temperature and the previous day's temperature is greater than the difference threshold, when an air conditioner start command is received from the remote control device, the air conditioner is started and the sterilization module is controlled to start the sterilization mode. or, When the number of bacteria colonies in the air conditioner exceeds a preset threshold, or when the PM2.5 value detected by the first PM2.5 sensor exceeds the first target threshold, or when the PM2.5 value detected by the second PM2.5 sensor exceeds the first target threshold, the sterilization module is controlled to start the sterilization mode.

[0012] Secondly, embodiments of this application provide a control device, including at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor, which, when executed by the at least one control processor, enable the at least one control processor to perform the air purification control method based on an air conditioner as described in the first aspect.

[0013] Thirdly, embodiments of this application also provide an air conditioner, including the control device of the second aspect.

[0014] Fourthly, embodiments of this application also provide a computer-readable storage medium storing computer-executable instructions for performing the air purification control method based on an air conditioner as described in the first aspect.

[0015] This application provides an air purification control method, device, air conditioner, and medium based on an air conditioner. The method includes: when the detection value output by the air quality detection module is greater than or equal to a first target threshold, and simultaneously the human presence detection module detects that someone is in the work area where the air conditioner is located, or the current time reaches a target time, controlling the system to enter an air purification mode. The target time is used to indicate the early start time of the air purification mode, and the target time is determined based on the purification efficiency of the purification module, the first target threshold, the detection value, and a reference time, where the reference time is the estimated time when someone enters the work area. Alternatively, the system can control the system to enter an air purification mode in response to an air purification command sent by a remote control device. According to the solution provided in this application, by combining multiple sensors (air quality detection module, human presence detection module), user behavior learning, and the purification efficiency of the purification module, a control mechanism capable of proactively sensing air quality, making decisions, and executing an air purification mode is constructed, realizing on-demand proactive execution of the air purification mode and effectively improving the air purification effect. Attached Figure Description

[0016] Figure 1 This is a flowchart of the steps of an air purification control method based on an air conditioner provided in one embodiment of this application; Figure 2 This is a schematic diagram of an air conditioner and the working area where the air conditioner is located, provided in another embodiment of this application; Figure 3 This is a structural diagram of a control device provided in another embodiment of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] It is understandable that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0019] In existing technologies, the air purification mode of air conditioners is often activated after the air conditioner starts cooling or heating, and it cannot actively sense changes in air quality, which limits its use scenarios and results in poor purification effect.

[0020] To address the aforementioned problems, this application provides an air purification control method, device, air conditioner, and medium based on an air conditioner. The method includes: when the detection value output by the air quality detection module is greater than or equal to a first target threshold, and simultaneously the human presence detection module detects someone in the work area where the air conditioner is located, or the current time reaches a target time, controlling the system to enter an air purification mode. The target time is used to indicate the early start time of the air purification mode, and is determined based on the purification efficiency of the purification module, the first target threshold, the detection value, and a reference time, where the reference time is the estimated time when someone enters the work area. Alternatively, the system can control the system to enter an air purification mode in response to an air purification command sent by a remote control device. According to the solution provided in this application, by combining multiple sensors (air quality detection module, human presence detection module), user behavior learning, and the purification efficiency of the purification module, a control mechanism capable of proactively sensing air quality, making decisions, and executing an air purification mode is constructed, enabling on-demand proactive execution of the air purification mode and effectively improving the air purification effect.

[0021] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0022] refer to Figure 1 , Figure 1 This is a flowchart illustrating the steps of an air purification control method based on an air conditioner according to an embodiment of this application. This application provides an air purification control method based on an air conditioner, applied to an air conditioner control device. The air conditioner is equipped with an air quality detection module, a human presence detection module, and a purification module. The control device is communicatively connected to a remote control device, the human presence detection module, the purification module, and the air quality detection module. The method includes, but is not limited to, the following steps: Step S10: When the detection value output by the air quality detection module is greater than or equal to the first target threshold, and the human presence detection module detects that there is someone in the work area where the air conditioner is located, or the current time reaches the target time, the air purification mode is activated. The target time is used to indicate the early start time of the air purification mode. The target time is determined based on the purification efficiency of the purification module, the first target threshold, the detection value and the reference time. The reference time is the expected time when someone enters the work area. or, Step S20: In response to the air purification command sent by the remote control device, the device is controlled to enter the air purification mode.

[0023] It should be noted that the specific air quality detection module and human presence detection module can be selected by those skilled in the art according to actual needs. The air quality detection module can be a formaldehyde detector, PM2.5 sensor, etc., and the human presence detection module can be an infrared sensor, radar sensor, etc. Figure 2 As shown, the air quality detection module in this embodiment is a first PM2.5 sensor, and the human presence detection module in this embodiment is a radar sensor.

[0024] Understandably, based on such Figure 2 The hardware structure of the air conditioner shown can determine the air quality and user behavior in the current working area of ​​the air conditioner by acquiring sensor data (including determining whether there are people in the working area through radar sensors and whether the remote control device sends air purification commands), providing an effective data basis for determining whether to enter the air purification mode.

[0025] Specifically, in this embodiment, the activation of the air purification mode associated with the purification module includes automatic activation and passive activation. The passive activation method corresponds to step S20, which controls the entry into the air purification mode in response to the air purification command sent by the remote control device. The active activation method corresponds to step S10, which requires the simultaneous fulfillment of the following two conditions to trigger the entry into the air purification mode. In this embodiment, the air quality detection module is a first PM2.5 sensor, and the human presence detection module is a radar sensor. The corresponding conditions are (1): the PM2.5 value detected by the first PM2.5 sensor is greater than or equal to the first target threshold; and (2): the radar sensor detects that there is someone in the working area where the air conditioner is located, or the current time has reached the early start time of the air purification mode calculated by the air conditioning system (i.e., the target time).

[0026] It should be noted that the remote control device can be a wired controller or a remote control bound to a target user. Those skilled in the art can choose according to actual needs. In this embodiment, the remote control device is bound to a target user, and the trigger source for the air purification command sent by the remote control device can be the target user clicking the air purification button on the remote control device.

[0027] Specifically, in some embodiments, the first target threshold is a first threshold set by the target user through a remote control device or a second threshold determined by a radar sensor based on the working scene of the working area. Figure 1 The method for determining the target time in step S10 includes, but is not limited to, the following steps: Step S11: Record the first moment when the target user leaves the work area and the second moment when they enter the work area within the first time period. Step S12: Determine the reference time based on the first time and the second time. Step S13: Determine a reference threshold from the first threshold and the second threshold, wherein the reference threshold is the threshold with the smallest value among the first threshold and the second threshold; Step S14: Calculate the first difference between the current PM2.5 value and the reference threshold, and divide the first difference by the purification efficiency to obtain the advance activation time. Step S15: Subtract the advance start time from the reference time to obtain the target time.

[0028] Specifically, in this embodiment, the first target threshold is either a first threshold set by the target user through a remote control device or a second threshold determined by the radar sensor based on the working scene of the working area. The second threshold is a recommended value, determined by the control device based on the data returned by the radar sensor to determine the working scene of the current working area. For example, when the working scene is determined to be a home scene, the corresponding second threshold is a1; when the working scene is a shopping mall scene, the corresponding second threshold is a2; and when the working scene is a hospital, the corresponding second threshold is a3.

[0029] It should be noted that the first time period in this embodiment is the 10 consecutive days prior to the current time. During these 10 days, there are 10 first times and 10 second times recorded. Specifically, the method for determining the reference time based on the first and second times in this embodiment is to select the time period with the most concentrated time among all the first times and determine the reference time based on this time period with the most concentrated time. For example, within the first time period, there are 6 days where the first times are between 17:30 and 18:00, and the reference time is determined to be 17:30.

[0030] Understandably, after determining the reference time, a reference threshold is selected from the first and second thresholds. The reference threshold is the threshold with the smallest value between the first and second thresholds. The first difference between the current PM2.5 value and the reference threshold is calculated. This first difference is divided by the purification efficiency to obtain the advance activation time, which is calculated using the following formula: n = (x - min(a, b)) / cz, where n is the advance activation time, a is the first threshold, b is the second threshold, and cz is the purification efficiency corresponding to the previous purification cycle. After calculating the advance activation time, the reference time is subtracted from the advance activation time to obtain the target time, thus providing a valid data basis for determining whether the requirements for activating the air purification mode are met.

[0031] Specifically, in some embodiments, Figure 1 The method for determining the purification efficiency of the purification module in step S10 includes, but is not limited to, the following steps: Step S16: Determine the third time and the fourth time, and calculate the duration difference between the fourth time and the third time. The third time and the fourth time are the boundary times of the second time period. The third time is earlier than the fourth time. The second time period is the previous purification cycle of the purification module. Step S17: Determine the first PM2.5 value corresponding to the third time and the second PM2.5 value at the fourth time, and calculate the second difference between the first PM2.5 value and the second PM2.5 value; Step S18: Divide the second difference by the duration difference to obtain the purification efficiency.

[0032] It is understood that the purification efficiency of the purification module in this embodiment is calculated using the following formula: c = (x t1 -x t2 ) / (t2-t1); Where c is the purification efficiency, x t1 The first PM2.5 value, x t2 The second PM2.5 value is given, t2 is the fourth time point, and t1 is the third time point. △T = t2-t1 represents the second time period, which is the previous purification cycle of the purification module.

[0033] Additionally, in some embodiments, the air conditioner records a first reference purification efficiency of the purification module for different purification cycles during execution. Figure 1 Following step S10 or S20, the air purification control method based on an air conditioner provided in this application embodiment further includes, but is not limited to, the following steps: Step S31: Select a preset number of target purification efficiencies from all reference purification efficiencies, wherein the target purification efficiency is the first reference purification efficiency corresponding to the purification cycle before the current air purification mode is entered. Step S32: Divide the target purification efficiency by the preset quantity to obtain the second target threshold; Step S33: If the current purification efficiency of the purification module is less than the second target threshold, generate a door and window closing reminder message and send the door and window closing reminder message to the remote control device.

[0034] Specifically, the second target threshold d in this embodiment is calculated according to the following formula: d= ; Where i is the preset quantity, and ci is the first reference purification efficiency corresponding to the purification cycle before the current time node enters the air purification mode, i.e., the target purification efficiency. It should be noted that this embodiment does not limit the specific value of the preset quantity, and it can be 3, i.e., i=3 in this embodiment.

[0035] It is understandable that if the current purification efficiency is lower than the historical average level (i.e., the second target threshold), it is likely because polluted air from outside continues to enter (e.g., doors and windows are not closed). If the doors and windows in the work area are not closed, the purification module will run at high load for a long time but will still be unable to achieve the target cleanliness. Therefore, this embodiment is designed to generate and send a door and window closure reminder message in a timely manner if it is determined that the current purification efficiency is lower than the second target threshold. Sending the door and window closure reminder message to the remote control device can achieve timely intervention, reduce the ineffective operation of the purification module, and provide effective support for ensuring the purification effect.

[0036] Additionally, in some embodiments, the air conditioner records a first reference purification efficiency of the purification module for different purification cycles during execution. Figure 1 Following step S10 or S20, the air purification control method based on an air conditioner provided in this application embodiment further includes, but is not limited to, the following steps: Step S34: If the current PM2.5 value is less than the first target threshold, and the air conditioner does not receive a start signal from the remote control device, the air purification mode is turned off. or, Step S35: When the current PM2.5 value is less than the first target threshold, and the air conditioner receives a start signal from the remote control device including a function mode requirement, and it is determined that the function mode requirement is met, the air purification mode is turned off. or, Step S36: If the time between the current time and the reference time exceeds a preset time threshold, the air purification mode is turned off regardless of whether the current PM2.5 value is less than the first target threshold.

[0037] It is understandable that after the air conditioner enters the air purification mode, the triggering conditions for closing this mode in this embodiment are as follows: (1) The current PM2.5 value is less than the first target threshold, and the air conditioner does not receive a start signal from the remote control device (i.e., the current air conditioner does not have functional requirements such as cooling, heating, dehumidification, and air supply signals), and the air purification mode is controlled to be closed; (2) The current PM2.5 value is less than the first target threshold, and the air conditioner receives a start signal from the remote control device, and the air purification mode is controlled to be closed after the air conditioner meets the functional mode requirements; (3) If the current time is later than the reference time by more than the preset time threshold, the air purification mode is controlled to be closed regardless of whether the current PM2.5 value is less than the first target threshold. In this way, the energy waste caused by the opening of doors and windows in the work area and the late return of the target user can be avoided.

[0038] Additionally, in some embodiments, during execution Figure 1Following step S10 or S20, the air purification control method based on an air conditioner provided in this application embodiment further includes, but is not limited to, the following steps: Step S37: Multiply the preset initial purification efficiency of the air conditioner by a preset ratio value to obtain the second reference purification efficiency. Step S38: If the current purification efficiency of the purification module is less than the second reference purification efficiency, generate a reminder message to replace the purification module and send the reminder message to the remote control device.

[0039] It is understood that in this embodiment, a preset ratio value is set, and the preset initial purification efficiency of the air conditioner is multiplied by the preset ratio value to obtain a second reference purification efficiency. This second reference purification efficiency is used as the basis for judging the performance of consumables. When it is determined that the current purification efficiency of the purification module is less than the second reference purification efficiency, a replacement reminder message for the purification module is generated and sent to the remote control device. This can actively monitor the performance of the purification module, avoid users replacing it too early and causing waste, and also prevent replacement too late from affecting the purification effect.

[0040] In addition, in some embodiments, the air conditioner is equipped with a sterilization module, and the control device is communicatively connected to the second PM2.5 sensor and the sterilization module respectively. The second PM2.5 sensor is located in the working area. The air purification control method based on the air conditioner provided in this application embodiment also includes, but is not limited to, the following steps: Step S41: When the temperature difference between the current temperature and the temperature of the previous day is detected to be greater than the difference threshold, when the air conditioner start command is received from the remote control device, the air conditioner is started and the sterilization module is controlled to start the sterilization mode. Step S42: When the number of bacteria colonies in the air conditioner is greater than a preset threshold, or when the PM2.5 value detected by the first PM2.5 sensor is greater than a first target threshold, or when the PM2.5 value detected by the second PM2.5 sensor is greater than the first target threshold, the sterilization module is controlled to start the sterilization mode.

[0041] It is understandable that, such as Figure 2As shown, the second PM2.5 sensor is located in the working area. This second PM2.5 sensor can be deployed on an air-sensing device that communicates with the air conditioner's control unit. It can monitor the PM2.5 value in the working area, or acquire temperature data via Wi-Fi and transmit it back to the control unit. This allows the air conditioner to actively sense the air quality in the working area. If the temperature difference between the current temperature and the previous day's temperature exceeds a threshold, and the air conditioner receives a start command from the remote control device, it starts the air conditioner and simultaneously controls the sterilization module to activate sterilization mode. Alternatively, if the number of bacteria colonies detected by the air conditioner exceeds a preset threshold, or if the PM2.5 value detected by the first PM2.5 sensor exceeds a first target threshold, or if the PM2.5 value detected by the second PM2.5 sensor exceeds the first target threshold, the sterilization module is controlled to activate sterilization mode, effectively ensuring the air quality in the working area where the air conditioner is located.

[0042] like Figure 3 As shown, Figure 3 This is a structural diagram of a control device provided in one embodiment of this application. The present invention also provides a control device 300, comprising: The processor 310 can be implemented using a general-purpose central processing unit (CPU), microprocessor, application specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application. The memory 320 can be implemented as a read-only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM). The memory 320 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 320 and called and executed by the processor 310 using the air purification control method based on an air conditioner according to the embodiments of this application. Input / output interface 330 is used to realize information input and output; The communication interface 340 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.). Bus 350 transmits information between various components of the device (e.g., processor 310, memory 320, input / output interface 330, and communication interface 340); The processor 310, memory 320, input / output interface 330 and communication interface 340 are connected to each other within the device via bus 350.

[0043] In addition, this application also provides an electronic device, including the control device 300 described in the above embodiments.

[0044] In addition, this application embodiment also provides a storage medium, which is a computer-readable storage medium, storing a computer program that, when executed by a processor, implements the above-described air purification control method based on an air conditioner.

[0045] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof. The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separate, and may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0046] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0047] The above provides a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. An air purification control method based on an air conditioner, characterized in that, A control device for an air conditioner, the air conditioner being equipped with an air quality detection module, a human presence detection module, and a purification module, wherein the control device is communicatively connected to a remote control device, the human presence detection module, the purification module, and the air quality detection module, respectively, and the method includes: When the detection value output by the air quality detection module is greater than or equal to the first target threshold, and the human presence detection module detects that there is someone in the work area where the air conditioner is located, or the current time reaches the target time, the air purification mode is activated. The target time is used to indicate the early start time of the air purification mode. The target time is determined based on the purification efficiency of the purification module, the first target threshold, the detection value, and a reference time. The reference time is the expected time when someone enters the work area. or, In response to an air purification command sent by the remote control device, the device is controlled to enter air purification mode.

2. The air purification control method based on an air conditioner according to claim 1, characterized in that, The air quality detection module is a first PM2.5 sensor, the human presence detection module is a radar sensor, the remote control device is bound to a target user, the detected value is the PM2.5 value, the first target threshold is a first threshold set by the target user through the remote control device or a second threshold determined by the radar sensor based on the working scene of the working area, and the target time is determined according to the following steps: Record the first moment when the target user leaves the work area and the second moment when the target user enters the work area within the first time period; The reference time is determined based on the first time and the second time. A reference threshold is determined from the first threshold and the second threshold, wherein the reference threshold is the threshold with the smallest value among the first threshold and the second threshold; Calculate the first difference between the current PM2.5 value and the reference threshold, and divide the first difference by the purification efficiency to obtain the advance activation time; The target time is obtained by subtracting the advance start time from the reference time.

3. The air purification control method based on an air conditioner according to claim 2, characterized in that, The purification efficiency of the purification module is calculated according to the following steps: Determine the third and fourth moments, and calculate the duration difference between the fourth and third moments, wherein the third and fourth moments are the boundary moments of the second time period, the third moment is earlier than the fourth moment, and the second time period is the previous purification cycle of the purification module. Determine the first PM2.5 value corresponding to the third time point and the second PM2.5 value at the fourth time point, and calculate the second difference between the first PM2.5 value and the second PM2.5 value; The purification efficiency is obtained by dividing the second difference by the duration difference.

4. The air purification control method based on an air conditioner according to claim 1, characterized in that, The air conditioner records a first reference purification efficiency of the purification module for different purification cycles. After the control enters the air purification mode, the method further includes: Select a preset number of target purification efficiencies from all the reference purification efficiencies, wherein the target purification efficiency is the first reference purification efficiency corresponding to the purification cycle before the current air purification mode is entered. Divide the target purification efficiency by the preset number to obtain the second target threshold; If the current purification efficiency of the purification module is less than the second target threshold, a door and window closing reminder message is generated and sent to the remote control device.

5. The air purification control method based on an air conditioner according to claim 2, characterized in that, After the control enters the air purification mode, the method further includes: If the current PM2.5 value is less than the first target threshold, and the air conditioner does not receive a start signal from the remote control device, the air purification mode will be turned off. or, When the current PM2.5 value is less than the first target threshold, when the air conditioner receives a start signal from the remote control device including the functional mode requirement, and when it is determined that the functional mode requirement is met, the air purification mode is turned off. or, If the current time is later than the reference time for more than a preset duration threshold, the air purification mode will be turned off regardless of whether the current PM2.5 value is less than the first target threshold.

6. The air purification control method based on an air conditioner according to claim 1, characterized in that, After the control enters the air purification mode, the method further includes: The initial purification efficiency of the air conditioner is multiplied by a preset ratio value to obtain the second reference purification efficiency. If the current purification efficiency of the purification module is less than the second reference purification efficiency, a replacement purification module reminder message is generated and sent to the remote control device.

7. The air purification control method based on an air conditioner according to claim 2, characterized in that, The air conditioner is equipped with a sterilization module, and the control device is communicatively connected to both the second PM2.5 sensor and the sterilization module. The second PM2.5 sensor is located in the working area. The method further includes: If the temperature difference between the current temperature and the previous day's temperature is greater than the difference threshold, when an air conditioner start command is received from the remote control device, the air conditioner is started and the sterilization module is controlled to start the sterilization mode. or, When the number of bacteria colonies in the air conditioner exceeds a preset threshold, or when the PM2.5 value detected by the first PM2.5 sensor exceeds the first target threshold, or when the PM2.5 value detected by the second PM2.5 sensor exceeds the first target threshold, the sterilization module is controlled to start the sterilization mode.

8. A control device, characterized in that, It includes at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor, which, when executed by the at least one control processor, enable the at least one control processor to perform the air purification control method based on an air conditioner as described in any one of claims 1 to 7.

9. An air conditioner, characterized in that, Includes the control device as described in claim 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the air purification control method based on an air conditioner as described in any one of claims 1 to 7.

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