Mattress and control method and device thereof

Abstract

The invention discloses a mattress and a control method and device thereof. The control method of the mattress comprises the following steps: acquiring basic information of a user and a starting moment of the user in a bed; judging whether the starting moment is within a preset time range or not; if yes, first power supply voltage is determined according to the basic information, and the air pump is controlled to work under the action of the first power supply voltage; the first power supply voltage is smaller than rated voltage of the air pump. According to the technical scheme, the working power of the air pump is adjusted in real time, so that the influence degree of noise generated by working of the air pump on falling asleep of a user is reduced, and the falling asleep rate and the sleeping quality of the user are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mattresses, and in particular to a mattress and a control method and device thereof. Background Art

[0002] In order to improve the user's sleeping experience, most existing smart mattresses are equipped with air bags, and the hardness of the mattress can be adjusted by adjusting the air pressure in the air bags.

[0003] Currently, the more advanced mattresses with adjustable hardness and softness require that the hardness of each air-filled chamber of the mattress be adjusted in real time and adaptively according to the user's sleep depth, sleep posture, and other changes during sleep, so that the hardness of each contact area of ​​the mattress conforms to the human physiological curve and user habits. This means that during the user's sleep, the air pump must also be started from time to time to inflate and exhaust air and adjust the air pressure of each air-filled chamber. Obviously, if the air pump frequently makes a loud working noise during sleep, it will undoubtedly disturb the sleep of the user and others around him. Summary of the invention

[0004] The present invention provides a mattress and a control method and device thereof, so as to reduce the influence of noise generated by the operation of an air pump on a user and improve the user's sleeping speed and sleeping quality.

[0005] In a first aspect, the present invention provides a method for controlling a mattress, wherein the mattress at least comprises an air pump; the method for controlling the mattress comprises:

[0006] Obtaining basic information of the user and the starting time of the user in bed;

[0007] Determining whether the starting time is within a preset time range;

[0008] If so, a first power supply voltage is determined based on the basic information, and the air pump is controlled to operate under the first power supply voltage; the first power supply voltage is less than the rated voltage of the air pump.

[0009] Optionally, the basic information includes current weight;

[0010] Determining a first supply voltage according to the basic information includes:

[0011] Acquire a first mapping relationship between the body weight and the power supply voltage;

[0012] Based on the first mapping relationship, the supply voltage corresponding to the current weight is determined as the first supply voltage.

[0013] Optionally, if the starting time is not within a preset time range, controlling the air pump to operate at the rated voltage for a first preset time;

[0014] After the first preset time, obtaining the current sleep state of the user;

[0015] Determining whether the current sleep state is deep sleep;

[0016] If not, a second power supply voltage is determined according to the current sleep state, and the air pump is controlled to operate under the action of the second power supply voltage; the second power supply voltage is less than the rated voltage of the air pump.

[0017] Optionally, determining the second supply voltage according to the current sleep state includes:

[0018] Acquire a second mapping relationship between the sleep state and the supply voltage;

[0019] Based on the second mapping relationship, the power supply voltage corresponding to the current sleep state is determined to be the second power supply voltage.

[0020] Optionally, if the current sleep state is the deep sleep, the air pump is controlled to operate under the action of a third power supply voltage; the third power supply voltage is less than the rated voltage.

[0021] Optionally, the third supply voltage is lower than the second supply voltage.

[0022] Optionally, the third supply voltage is less than or equal to the first supply voltage.

[0023] In a second aspect, the present invention provides a mattress control device, comprising:

[0024] An information acquisition module, used to acquire basic information of the user and the starting time of the user in bed;

[0025] A time judgment module, used to judge whether the starting time is within a preset time range;

[0026] An air pump control module is used to determine a first power supply voltage based on the basic information when the starting time is within the preset time range, and control the air pump to operate under the action of the first power supply voltage; the first power supply voltage is less than the rated voltage of the air pump.

[0027] In a third aspect, the present invention provides a mattress, comprising at least: an air pump and a controller; the air pump is electrically connected to the controller;

[0028] The controller is used to execute the mattress control method described in the first aspect.

[0029] Optionally, the controller includes: a control unit, a digital potentiometer and a voltage adjustment unit;

[0030] The digital potentiometer is electrically connected to the control unit and the voltage adjustment unit respectively; the digital potentiometer is used to adjust the adjustment signal output to the voltage adjustment unit according to the control signal of the control unit; the voltage adjustment unit is used to output a power supply voltage corresponding to the adjustment signal to the air pump according to the adjustment signal.

[0031] The technical solution provided by the present invention obtains the basic information of the user and the starting time of the user in bed, so that the starting time is within a preset time range, determines the first power supply voltage according to the basic information of the user, and controls the air pump to work under the action of the first power supply voltage. By setting the first power supply voltage to be less than the rated voltage of the air pump, the working power of the air pump is reduced, thereby reducing the air intake or air output of the air pump, reducing the noise generated when the air pump is working, reducing the influence of the noise on the user's falling asleep, and improving the user's falling asleep speed and sleep quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A flowchart of a mattress control method provided by an embodiment of the present invention;

[0033] Figure 2 A flowchart of another mattress control method provided by an embodiment of the present invention;

[0034] Figure 3 A flowchart of another mattress control method provided by an embodiment of the present invention;

[0035] Figure 4 A schematic structural diagram of a mattress control device provided by an embodiment of the present invention;

[0036] Figure 5 A schematic diagram of the structure of a controller provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0038] Figure 1 This is a flowchart of a mattress control method provided by an embodiment of the present invention, which is applicable to the case where the power of the air pump is adjusted in real time when a user is on the mattress. The mattress is an intelligent mattress provided with air bags. The control method can be executed by a control device provided by an embodiment of the present invention, which can be implemented in the form of hardware and / or software, and the control device can be integrated into the mattress. Figure 1 As shown, the control method of the mattress includes:

[0039] S101, obtaining basic information of the user and the starting time when the user lies in bed.

[0040] The basic information may include the user's current weight, current height, user's resting heart rate, etc. The starting time indicates the initial time when the user lies on the bed.

[0041] Specifically, the user can input his or her basic information into the storage device in advance, so that it can be directly obtained from the storage device later. The side of the mattress that contacts the user's body is provided with devices such as pressure sensors, which can output sensing signals through pressure force sensors to determine whether the user is in bed and the starting time of the user in bed. Exemplarily, when the pressure signal obtained by the pressure sensor is less than the preset signal, it means that the user is not in bed. When the pressure signal obtained by the pressure sensor is greater than the preset signal, it means that the user is in bed. The starting time when the pressure sensor obtains the pressure signal greater than the preset signal is the starting time of the user in bed.

[0042] S102, determining whether the start time is within a preset time range; if so, executing S103.

[0043] Among them, the preset time range can be a fixed value or a non-fixed value, and can be set according to the actual needs of the user. When the user's rest time period is between 22:00 and 7:00, the preset time range can be set to 22:00-7:00. When the user's rest time period is between 8:00 and 17:00, the preset time range can be set to 8:00-17:00. In an exemplary embodiment, the preset time range can be 23:00-6:00, and the preset time range can also be other, which is not specifically limited here.

[0044] Specifically, the preset time range represents the user's sleep demand time period. If the user's starting time in bed is within the preset time range, it means that the user has a sleep demand.

[0045] S103: Determine a first power supply voltage according to the basic information, and control the air pump to operate under the first power supply voltage.

[0046] The first power supply voltage is less than the rated voltage of the air pump. The rated voltage refers to the normal operating voltage that the air pump can withstand.

[0047] Specifically, if the user's starting time in bed is within the preset time range, from the starting time, if the air pump is controlled to continue to work at the rated voltage, that is, the air pump is in a high-power operation state, the noise generated by inflation or deflation is relatively large, which is likely to affect the user's sleep effect. Therefore, if the user's starting time in bed is within the preset time range, from the starting time, according to the user's basic information, a first power supply voltage less than the rated voltage is determined, and the air pump is controlled to work under the first power supply voltage to reduce the working power of the air pump, reduce the air intake of the air pump, and thus reduce noise, thereby improving the user's sleep speed and sleep effect.

[0048] The technical solution of the present invention obtains the basic information of the user and the starting time of the user in bed, so that the starting time is within a preset time range, determines the first power supply voltage according to the basic information of the user, and controls the air pump to work under the action of the first power supply voltage. By setting the first power supply voltage to be less than the rated voltage of the air pump, the working power of the air pump is reduced, thereby reducing the air intake or air output of the air pump, reducing the noise generated when the air pump is working, reducing the influence of the noise on the user's falling asleep, and improving the user's falling asleep speed and sleep quality.

[0049] Based on the above embodiment, the embodiment of the present invention describes a case where the first power supply voltage is determined according to basic information. Figure 2 A flowchart of another mattress control method provided by an embodiment of the present invention, such as Figure 2 As shown, the control method of the mattress includes:

[0050] S201, obtaining basic information of the user and the starting time when the user lies in bed.

[0051] Among them, basic information includes current weight.

[0052] Specifically, the current weight indicates the total weight of the user's current body.

[0053] S202, determine whether the start time is within a preset time range; if so, execute S203.

[0054] S203: Obtain a first mapping relationship between body weight and power supply voltage.

[0055] The first power supply voltage is less than the rated voltage of the air pump.

[0056] Specifically, the first mapping relationship can be a curve graph of body weight and power supply voltage or a corresponding table of body weight and power supply voltage, which can be obtained through experiments or experience. The power supply voltage can be in direct proportion to the body weight, that is, the heavier the body weight, the larger the corresponding power supply voltage. However, the maximum power supply voltage in the first mapping relationship is less than the rated voltage of the air pump to ensure that the first power supply voltage determined by the first mapping relationship is less than the rated voltage of the air pump to reduce the working noise of the air pump.

[0057] S204: Based on the first mapping relationship, determine that the power supply voltage corresponding to the current weight is the first power supply voltage, and control the air pump to operate under the first power supply voltage.

[0058] Specifically, when the first mapping relationship is a curve graph of body weight and power supply voltage, after obtaining the current body weight, the curve graph of body weight and power supply voltage can be directly compared to determine the power supply voltage on the curve graph corresponding to the current body weight as the first power supply voltage. Alternatively, when the first mapping relationship is a corresponding table of body weight and power supply voltage, after obtaining the current body weight, the table can be directly looked up to obtain the power supply voltage corresponding to the current body weight, and the power supply voltage can be determined as the first power supply voltage. The air pump is then controlled to work under the action of the first power supply voltage so that the air pump has a smaller working power to reduce the noise generated when the air pump is working.

[0059] The technical solution of the present invention obtains a first mapping relationship between body weight and power supply voltage, determines the power supply voltage corresponding to the current body weight as the first power supply voltage based on the first mapping relationship, and controls the air pump to work under the first power supply voltage. In this way, different power supply voltages can be set for users with different body weights to ensure that the mattress has a certain degree of support and improve the user experience.

[0060] Based on the above embodiment, the embodiment of the present invention describes the situation where the start time is not within the preset time range. Figure 3 A flowchart of another mattress control method provided by an embodiment of the present invention is shown in FIG. Figure 3 As shown, the control method of the mattress includes:

[0061] S301, obtaining basic information of the user and the starting time when the user lies in bed.

[0062] Among them, the basic information at least includes the current weight.

[0063] S302, determine whether the start time is within a preset time range; if so, execute S303; if not, execute S304.

[0064] S303: Determine a first power supply voltage according to the basic information, and control the air pump to operate under the first power supply voltage.

[0065] The first power supply voltage is less than the rated voltage of the air pump.

[0066] S304, controlling the air pump to operate at rated voltage for a first preset time.

[0067] The first preset time may be a fixed value or a non-fixed value, and may be set according to the actual needs of the user. The first preset time may range from 2 minutes to 10 minutes. In an exemplary embodiment, the first preset time may be 3 minutes. The first preset time may also be other values, which are not specifically limited here.

[0068] Specifically, the preset time range indicates the user's sleep demand time period. If the user is not in the preset time range at the beginning of the bed, it means that the user may have a sleep demand or the user is just resting in bed and does not want to fall asleep. At this time, the air pump can be controlled to work at the rated voltage for the first preset time from the beginning, and the air pump is in a high-power operation state to fill the airbag in the mattress as quickly as possible. During the first preset time, the user is still awake or relatively awake, and the noise generated by the air pump during the first preset time will not have a significant impact on the user's sleep. At the same time, the air pump can fill the airbag to the preset air pressure to improve the user's experience.

[0069] S305: After the first preset time, obtain the current sleep state of the user.

[0070] The current sleep state indicates the sleep state of the user at the current moment, and the sleep state includes the awake stage, the light sleep stage, and the deep sleep stage.

[0071] Specifically, after the first preset time, if the air pump is still operated at the rated voltage, the noise generated by the air pump during operation will affect the user. Therefore, after the first preset time, the user's current sleep state can be obtained so that the current operating voltage of the air pump can be adjusted according to the current sleep state, so that the noise generated by the air pump during operation is maintained at a level that does not affect the user's sleep. The user's current sleep state can be determined by detecting the user's vital sign parameters. Among them, the vital sign parameters include breathing, heart rate, body movement, etc.

[0072] S306, determine whether the current sleep state is deep sleep; if not, execute S307; if yes, execute 308.

[0073] Among them, when the user's breathing is steady but at a low frequency, and the heart rate is decreased and stable, it means that the user is in deep sleep.

[0074] Specifically, the vital sign parameters of the current sleep state can be compared with the vital sign parameters corresponding to deep sleep. If all the current vital sign parameters correspond to the vital sign parameters corresponding to deep sleep, it means that the current sleep state is deep sleep. If at least one of the current vital sign parameters does not correspond to the vital sign parameters corresponding to deep sleep, it means that the current sleep state is not deep sleep.

[0075] S307. Determine a second power supply voltage of the air pump according to the current sleep state, and control the air pump to work under the second power supply voltage.

[0076] The second power supply voltage is less than the rated voltage of the air pump.

[0077] Specifically, if the user's current sleep state is not deep sleep, the power supply voltage corresponding to the current sleep state is determined to be the second power supply voltage according to the corresponding relationship between the current sleep state and the power supply voltage, and the second power supply voltage is less than the rated voltage. When the air pump works at the second power supply voltage, it can generate lower working power and reduce the noise generated during operation, so that the user can fall asleep in a lower ambient noise, prevent the noise generated by the air pump from affecting the user's sleeping speed, and improve the user's sleeping quality.

[0078] Optionally, determining the second power supply voltage of the air pump according to the current sleep state includes obtaining a second mapping relationship between the sleep state and the power supply voltage. Based on the second mapping relationship, determining the power supply voltage corresponding to the current sleep state as the second power supply voltage.

[0079] Specifically, the second mapping relationship can be a curve diagram of sleep state and power supply voltage or a corresponding table of sleep state and power supply voltage, which can be obtained through experiments or experience. The power supply voltage can be inversely proportional to the degree of sleep corresponding to the sleep state, that is, the deeper the degree of sleep, the smaller the corresponding power supply voltage. Exemplarily, the sleep state can be divided into awake sleep, shallow sleep and deep sleep according to the degree of sleep from shallow to deep, and the power supply voltage corresponding to deep sleep is less than the power supply voltage corresponding to shallow sleep, and the power supply voltage corresponding to shallow sleep is less than the power supply voltage corresponding to awake sleep. However, the maximum power supply voltage in the second mapping relationship is less than the rated voltage of the air pump to ensure that the second power supply voltage determined by the second mapping relationship is less than the rated voltage of the air pump to reduce the working noise of the air pump. When the second mapping relationship is a curve diagram of sleep state and power supply voltage, after obtaining the current sleep state, the curve diagram of sleep state and power supply voltage is directly compared to determine the power supply voltage on the curve diagram corresponding to the current sleep state as the second power supply voltage. Alternatively, when the second mapping relationship is a corresponding table of sleep states and power supply voltages, after obtaining the current sleep state, the table can be directly looked up to obtain the power supply voltage corresponding to the current sleep state, and the power supply voltage is determined as the second power supply voltage. The air pump is then controlled to operate under the second power supply voltage so that the air pump has a smaller operating power to reduce the noise generated when the air pump is operating.

[0080] S308. Control the air pump to operate under the action of the third power supply voltage.

[0081] The third supply voltage is lower than the rated voltage.

[0082] Specifically, if the user's current sleep state is deep sleep, the air pump is controlled to operate at a third power supply voltage that is less than the rated voltage, so that the air pump has a smaller working power, reduces the working noise of the air pump, and improves the user's deep sleep quality.

[0083] In an optional embodiment, the third supply voltage is less than or equal to the first supply voltage.

[0084] Specifically, under the premise that the first supply voltage is less than the rated voltage, the third supply voltage is set to be less than or equal to the first supply voltage to ensure that the air pump can operate at a lower supply voltage, thereby further reducing the working noise of the air pump when the user is in a deep sleep state and improving the user's sleep quality.

[0085] Optionally, the third supply voltage is lower than the second supply voltage.

[0086] Specifically, when the air pump is operated at the second power supply voltage, the user's sleep state has not yet reached deep sleep. When the air pump is operated at the third power supply voltage, the user's sleep state has reached deep sleep. By setting the third power supply voltage to be lower than the second power supply voltage, the working power of the air pump in deep sleep is smaller or minimized, and the noise generated in deep sleep is also minimized, so that when the user is in deep sleep, the working noise of the air pump will not wake the user, thereby ensuring the user's deep sleep quality.

[0087] According to the technical solution of the present invention, if the starting time is not within the preset time range, the air pump is first controlled to operate at the rated voltage for the first preset time. During the first preset time, the user is still in a relatively awake state, and the working noise of the air pump has little effect on the user's falling asleep. Therefore, the air pump can be controlled to operate at the rated voltage, so that the mattress can provide the user with a stronger support force more quickly, thereby improving the user's mattress usage experience; after the first preset time, if the user's current sleep state is not deep sleep, the second power supply voltage corresponding to the current sleep state is determined according to the current sleep state, and the air pump is controlled to operate under the action of the second power supply voltage, so that when the air pump operates at the second power supply voltage, the noise generated by the air pump has less effect on the user, thereby ensuring the user's sleep quality; if the user's current sleep state is deep sleep, the air pump is controlled to operate under the action of the third power supply voltage, and the third power supply voltage is less than the rated voltage, so that in deep sleep, the air pump can still generate less noise, thereby ensuring the user's sleep quality.

[0088] Figure 4 A schematic diagram of a control device for a mattress provided by an embodiment of the present invention is shown in FIG. Figure 4 As shown, the control device of the mattress includes:

[0089] The information acquisition module 11 is used to acquire the basic information of the user and the starting time of the user in bed;

[0090] A time determination module 12, used to determine whether the start time is within a preset time range;

[0091] The air pump control module 13 is used to determine a first power supply voltage based on basic information when the starting time is within a preset time range, and control the air pump to operate under the first power supply voltage; the first power supply voltage is less than the rated voltage of the air pump.

[0092] The mattress control device provided in the embodiment of the present invention can execute the mattress control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. The similarities can be referred to the above description.

[0093] Based on the same inventive concept, the present invention also provides a mattress, which mattress at least includes: an air pump and a controller; the air pump is electrically connected to the controller; the controller is used to execute the mattress control method provided by any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method. The similarities can be referred to the above description.

[0094] In an optional embodiment, Figure 5 A schematic diagram of the structure of a controller provided by an embodiment of the present invention is shown in FIG. Figure 5 As shown, the controller includes a control unit 21, a digital potentiometer 22 and a voltage adjustment unit 23. The digital potentiometer 22 is electrically connected to the control unit 21 and the voltage adjustment unit 23 respectively; the digital potentiometer 22 is used to adjust the adjustment signal output to the voltage adjustment unit 23 according to the control signal of the control unit 21; the voltage adjustment unit 23 is used to output the power supply voltage corresponding to the adjustment signal to the air pump according to the adjustment signal.

[0095] The control unit 21 includes a plurality of electrical terminals. Figure 5 Only the terminals electrically connected to the digital potentiometer 22 are shown, and other terminals in the control unit 21 can be set according to actual needs, and are not specifically limited here. The digital potentiometer 22 includes a power supply terminal VDD, a clock line SCL, a bidirectional data line SDA, a ground terminal GND, and output terminals H and W. The adjustment unit 23 includes a power supply input terminal in, a power supply output terminal out, and adjustment signal receiving terminals T1 and T2. The adjustment signal receiving terminal T1 is electrically connected to the output terminal H, the adjustment signal receiving terminal T2 is electrically connected to the output terminal W, the power supply input terminal in is electrically connected to the power supply, and the power supply output terminal out is electrically connected to the air pump.

[0096] Specifically, the PB8 terminal in the control unit 21 is electrically connected to the clock line SCL in the digital potentiometer 22, and the PB9 terminal is electrically connected to the bidirectional data line SDA in the digital potentiometer 22, so as to input a control signal to the digital potentiometer 22 through the PB8 terminal and the PB9 terminal. The digital potentiometer 22 can output different adjustment signals under the action of different control signals, and the voltage adjustment unit 23 can output different supply voltages under different adjustment signals. In this way, the control unit 21 can adjust the control signal output to the digital potentiometer 22 in real time according to the user's starting time in bed or the user's current sleep state, so that the digital potentiometer 22 outputs an adjustment signal corresponding to the control signal, and then the adjustment unit 23 outputs a corresponding supply voltage to the air pump, so as to adjust the working power of the air pump, so that the noise generated when the air pump works does not affect the user's sleep or has a smaller impact on the user's sleep, thereby improving the user's sleep quality.

[0097] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for controlling a mattress, characterized in that: The mattress at least comprises an air pump; and the control method of the mattress comprises: Obtaining basic information of the user and the starting time of the user in bed; Determining whether the starting time is within a preset time range; If so, a first power supply voltage is determined based on the basic information, and the air pump is controlled to operate under the first power supply voltage; the first power supply voltage is less than the rated voltage of the air pump.

2. The control method according to claim 1, characterized in that: The basic information includes current weight; Determining a first supply voltage according to the basic information includes: Acquire a first mapping relationship between the body weight and the power supply voltage; Based on the first mapping relationship, the supply voltage corresponding to the current weight is determined as the first supply voltage.

3. The control method according to claim 1, characterized in that: If the starting time is not within the preset time range, controlling the air pump to operate at the rated voltage for a first preset time; After the first preset time, obtaining the current sleep state of the user; Determine whether the current sleep state is deep sleep; If not, a second power supply voltage is determined according to the current sleep state, and the air pump is controlled to operate under the action of the second power supply voltage; the second power supply voltage is less than the rated voltage of the air pump.

4. The control method according to claim 3, characterized in that: Determining the second supply voltage according to the current sleep state includes: Acquire a second mapping relationship between the sleep state and the supply voltage; Based on the second mapping relationship, the power supply voltage corresponding to the current sleep state is determined to be the second power supply voltage.

5. The control method according to claim 3, characterized in that: If the current sleep state is the deep sleep state, the air pump is controlled to operate under the action of a third power supply voltage; the third power supply voltage is less than the rated voltage.

6. The control method according to claim 5, characterized in that: The third supply voltage is lower than the second supply voltage.

7. The control method according to claim 5, characterized in that: The third supply voltage is less than or equal to the first supply voltage.

8. A mattress control device, characterized in that: include: An information acquisition module, used to acquire basic information of the user and the starting time of the user in bed; A time judgment module, used to judge whether the starting time is within a preset time range; An air pump control module is used to determine a first power supply voltage based on the basic information when the starting time is within the preset time range, and control the air pump to operate under the action of the first power supply voltage; the first power supply voltage is less than the rated voltage of the air pump.

9. A mattress, characterized in that: At least comprising: an air pump and a controller; the air pump is electrically connected to the controller; The controller is used to execute the mattress control method according to any one of claims 1-7.

10. The mattress according to claim 9, characterized in that The controller comprises: a control unit, a digital potentiometer and a voltage adjustment unit; The digital potentiometer is electrically connected to the control unit and the voltage adjustment unit respectively; the digital potentiometer is used to adjust the adjustment signal output to the voltage adjustment unit according to the control signal of the control unit; the voltage adjustment unit is used to output a power supply voltage corresponding to the adjustment signal to the air pump according to the adjustment signal.

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