CN114198833A

CN114198833A - Method and device for controlling a humidifier, humidifier and storage medium

Info

Publication number: CN114198833A
Application number: CN202111363969.1A
Authority: CN
Inventors: 钟安富; 马韵华; 顾超
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-03-18
Anticipated expiration: 2041-11-17
Also published as: CN114198833B

Abstract

The application relates to the technical field of intelligent household appliances and discloses a method for controlling a humidifier. The method comprises the following steps: obtaining the pressure difference before and after the wet film; controlling the humidifier to enter a first descaling mode under the condition that the pressure difference is greater than or equal to a first preset value and smaller than a second preset value; controlling the humidifier to enter a second descaling mode under the condition that the pressure difference is greater than or equal to a second preset value; wherein the first preset value is smaller than the second preset value. After acquiring the pressure difference between the front and the back of the wet film, different descaling modes are entered according to the actual pressure difference. Therefore, different descaling modes can be operated according to the actual scaling condition of the humidifier, and the descaling efficiency of the humidifier is improved. The application also discloses a device for controlling the humidifier, the humidifier and a storage medium.

Description

Method and device for controlling a humidifier, humidifier and storage medium

Technical Field

The present application relates to the field of intelligent household appliance technologies, and for example, to a method and an apparatus for controlling a humidifier, and a storage medium.

Background

The wet film humidifying system can generate scale after being used for a long time, and the scale amount is increased to a certain degree to cause the problems of humidification amount attenuation, shortened service life of a wet film core body and the like.

In order to reduce the scale formation of the humidification system, the prior art discloses an automatic cleaning type descaling device, wherein a water inlet pressure sensor is arranged on a pipeline of a water inlet pipe of the device, a water outlet pressure sensor is arranged on a pipeline of a water outlet pipe, and the water outlet pressure sensor and the water inlet pressure sensor are respectively and electrically connected with a pressure difference controller. The outside water enters the system from the water inlet pipe and flows out of the system from the water outlet pipe, and when the pressure difference controller detects that the pressure difference sent by the water outlet pressure sensor and the water inlet pressure sensor is greater than a preset value, the scale is automatically cleaned.

In the process of implementing the embodiment, it is found that at least the following problems exist in the prior art:

the scheme only limits the condition for starting descaling, and indiscriminately descales different scaling conditions in the descaling process, so that the descaling efficiency is low.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a method and a device for controlling a humidifier, the humidifier and a storage medium, and the descaling efficiency of the humidifier can be improved.

In some embodiments, the method comprises: obtaining the pressure difference before and after the wet film; controlling the humidifier to enter a first descaling mode under the condition that the pressure difference is greater than or equal to a first preset value and smaller than a second preset value; and controlling the humidifier to enter a second descaling mode under the condition that the pressure difference is greater than or equal to a second preset value. And controlling the humidifier to normally operate under the condition that the pressure difference is smaller than a first preset value. Wherein the first preset value is smaller than the second preset value.

In some embodiments, the apparatus comprises: comprising a processor and a memory storing program instructions, the processor being configured, upon execution of the program instructions, to perform the method for controlling a humidifier as described above.

In some embodiments, the humidifier comprises: the above-described device for controlling a humidifier; a circulating water pipe; a first pressure sensor configured to detect a pressure before the wet film; a second pressure sensor configured to detect a pressure after the wet film; a first water pump configured to push water in the circulating water pipe to circulate and to be controlled to be switched on and off; the second water pump is used for injecting water into the inner cavity of the humidifier and can be controlled to be switched on and off; and a blower fan configured to blow the humidified air into the room.

In some embodiments, the storage medium stores program instructions that, when executed, perform the method for controlling a humidifier described above.

The method for controlling the humidifier, the device for controlling the humidifier, the humidifier and the storage medium provided by the embodiment of the disclosure can realize the following technical effects: after acquiring the pressure difference between the front and the back of the wet film, different descaling modes are entered according to the actual pressure difference. Therefore, different descaling modes can be operated according to the actual scaling condition of the humidifier, and the descaling efficiency of the humidifier is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a humidifier provided in an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a method for controlling a humidifier according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of another method for controlling a humidifier provided by an embodiment of the present disclosure;

fig. 4 is a schematic diagram of another method for controlling a humidifier provided by an embodiment of the present disclosure;

fig. 5 is a schematic diagram of another method for controlling a humidifier provided by an embodiment of the present disclosure;

fig. 6 is a schematic diagram of an apparatus for controlling a humidifier according to an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.

In the embodiment of the disclosure, the intelligent household appliance is a household appliance formed by introducing a microprocessor, a sensor technology and a network communication technology into the household appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent household appliance usually depends on the application and processing of modern technologies such as internet of things, internet and an electronic chip, for example, the intelligent household appliance can realize the remote control and management of a user on the intelligent household appliance by connecting the intelligent household appliance with the electronic device.

As shown in fig. 1, an embodiment of the present disclosure provides a humidifier. The humidifier is a box body with ventilation openings arranged in the front and the rear, and the box body is provided with a hollow inner cavity.

A wet film 1, a circulating water pipe 2, a water storage disc 3, a first water pump 4, a second water pump 5 and a fan 6 are arranged in a hollow inner cavity of the humidifier.

In the actual operation process, the second water pump 5 injects water into the water storage disc 3 from the outside, the first water pump 4 pushes the water in the circulating water pipe 2 to circulate, the water in the water storage disc 3 is conveyed to the position above the wet film 1 from the water storage disc 3, the water permeates downwards along the wet film 1 under the action of gravity, and the water is absorbed by the wet film 1 to form a uniform water film. When the dry air passes through the wet film 1, the water molecules sufficiently absorb heat in the air to vaporize and evaporate, so that the humidity in the air is increased to form humid air. The fan 6 blows the humid air to the indoor environment, so that the purpose of increasing the humidity of the indoor environment is achieved.

The hollow inner cavity of the humidifier is also provided with a first pressure sensor 7, a second pressure sensor 8 and a differential pressure switch 9. Wherein a first pressure sensor 7 is arranged in front of the wet membrane 1 for detecting the pressure in front of the wet membrane 1. A second pressure sensor 8 is arranged behind the wet membrane 1 for detecting the pressure behind the wet membrane 1. The differential pressure switch 9 is connected with the first pressure sensor 7 and the second pressure sensor 8, and can control the first water pump 4 and the second water pump 5 to be opened or closed according to the magnitude of the differential pressure. Wherein the air flows from before the wet film to after the wet film.

During actual operation, the differential pressure switch 9 receives the pressure difference measured by the first pressure sensor 7 and the second pressure sensor 8, and controls the switching of the first water pump 4 and the second water pump 5 according to the pressure difference.

By adopting the humidifier provided by the embodiment of the disclosure, the following technical effects can be realized: the pressure before and after the wet film is measured by the first pressure sensor and the second pressure sensor, and the pressure switch controls the first water pump and/or the second water pump to be switched on or switched off according to the pressure difference before and after the wet film, so that the descaling effect is achieved. Therefore, different descaling modes can be operated according to the actual scaling condition of the humidifier, and the descaling efficiency of the humidifier is improved.

Optionally, the humidifier further comprises: a high level switch 10 and a low level switch 11. In the process of water filling, when the water level reaches the high level switch 10, the second water pump 5 is turned off. And in the normal operation process of the humidifier, when the water level is lower than the low water level switch 11, the second water pump 5 is turned on to inject water. Thus, the water level in the water tray can be ensured to be moderate.

As shown in fig. 2, an embodiment of the present disclosure provides a method for controlling a humidifier, including:

s20, the humidifier obtains a pressure differential across the wet film.

And S21, under the condition that the pressure difference is greater than or equal to the first preset value and less than the second preset value, the humidifier enters a first descaling mode.

And S23, under the condition that the pressure difference is larger than the second preset value, the humidifier enters a second descaling mode.

By adopting the method for controlling the humidifier provided by the embodiment of the disclosure, the following technical effects can be realized: after acquiring the pressure difference between the front and the back of the wet film, different descaling modes are entered according to the actual pressure difference. Therefore, different descaling modes can be operated according to the actual scaling condition of the humidifier, and the descaling efficiency of the humidifier is improved.

Optionally, a value range of the first preset value is [25Pa, 35Pa ]. More specifically, it may be 28Pa, 30Pa or 32 Pa. Therefore, an accurate reference value can be provided for judging the scaling condition of the humidifier.

Optionally, a value range of the second preset value is [45Pa, 55Pa ]. More specifically, it may be 48Pa, 50Pa or 52 Pa. Therefore, an accurate reference value can be provided for judging the scaling condition of the humidifier.

Optionally, the first descaling mode comprises the humidifier controlling the first water pump to continuously operate. The first water pump for circulation is periodically turned on and off during normal operation of the humidifier. And in the first descaling mode, controlling the first water pump to continuously operate. Therefore, under the condition of ensuring the normal operation of the humidifier, the flowability of water on the surface of the wet film is enhanced, and a part of water scale can be taken away, so that the descaling effect is achieved.

Optionally, the second descaling mode comprises the humidifier controlling the first water pump to continuously operate and turning on the second water pump. The water quantity in the humidifier can be increased by opening the second water pump, the flow of the water on the surface of the wet film is increased, and the flowability of the water on the surface of the wet film is further increased. In this way, more scale can be carried away than if only the first water pump were turned on. The descaling strength is greater than in the first descaling mode.

Optionally, the second descaling mode further comprises the humidifier controlling the first water pump to increase the circulation speed. Therefore, the fluidity of water on the surface of the wet film can be increased, more water scales can be taken away, and the descaling strength is improved.

Optionally, the second descaling mode further comprises increasing the fan speed. Specifically, the fan speed is increased to 90%. Therefore, the rotating speed of the fan is increased, solid scaling is easier to leave the humidifier along with air, and the descaling effect can be improved.

Optionally, the humidifier sends a prompt when the pressure difference is greater than a third preset value. Therefore, under the condition that the scaling condition of the wet membrane affects the normal use, the user can be reminded to replace the wet membrane in time.

Referring to fig. 3, another method for controlling a humidifier is provided in an embodiment of the present disclosure, including:

s30, the humidifier receives the pressure P1 before the wet film, and the pressure P2 after the wet film.

Specifically, the pressure P1 before the wet film is measured by the first pressure sensor. The pressure P2 after the wet film is measured by the second pressure sensor.

And S31, calculating the pressure difference delta P between the front and the back of the wet film by the humidifier, wherein the pressure difference delta P is P2-P1.

And S32, under the condition that the pressure difference is greater than or equal to the first preset value and less than the second preset value, the humidifier enters a first descaling mode.

And S33, under the condition that the pressure difference is larger than the second preset value, the humidifier enters a second descaling mode.

By adopting the method for controlling the humidifier provided by the embodiment of the disclosure, the following technical effects can be realized: after acquiring the pressure difference between the front and the back of the wet film, different descaling modes are entered according to the actual pressure difference. Therefore, different descaling modes can be operated according to the actual scaling condition of the humidifier, and the descaling efficiency of the humidifier is improved. In addition, the differential pressure before and after the wet film is detected and calculated in the actual operation process to obtain the differential pressure, so that the current scaling condition can be accurately reflected, and the descaling is more accurate.

With reference to fig. 4, another method for controlling a humidifier is provided in an embodiment of the present disclosure, including:

and S40, the humidifier acquires the indoor humidity.

And S41, when the indoor humidity is lower than the first humidity threshold value, the humidifier starts the fan, and turns on the first water pump and the second water pump to humidify the indoor air.

And S42, when the indoor humidity is greater than or equal to the second humidity threshold value, the humidifier turns off the second water pump.

S43, the humidifier obtains a pressure differential across the wet film.

And S44, under the condition that the pressure difference is greater than or equal to the first preset value and less than the second preset value, the humidifier enters a first descaling mode.

And S45, under the condition that the pressure difference is larger than the second preset value, the humidifier enters a second descaling mode.

Alternatively, the indoor humidity may be acquired by a humidity sensor installed indoors. The humidity sensor can be arranged on indoor wall bodies, air conditioners, sweeping robots and other equipment or positions. Therefore, the humidifier does not need to have the function of acquiring humidity information, and the requirement on the humidifier is reduced. In addition, if the equipment that acquires this humidity is intelligent household electrical appliances such as intelligent refrigerator, intelligent air conditioner, can further strengthen the contact between the intelligent household electrical appliances, improves intelligent household electrical appliances's utilization ratio, makes the home systems more intelligent.

The indoor humidity may also be obtained by the humidifier itself, which is provided with a humidity sensor. Therefore, the humidifier is not required to be interconnected with other equipment, is more flexible to use and is not limited by scenes or other equipment.

Optionally, the first humidity threshold value ranges from [ 25%, 40% ]. If the indoor air humidity is lower than the first humidity threshold value, the human indoor environment is too dry, and humidification is needed. Thus, the condition for starting the operation of the humidifier can be accurately judged. Not only can meet the humidification requirements of users, but also can avoid resource waste.

Optionally, the second humidity threshold value ranges from [ 55%, 65% ]. If the humidity of the air in the room is higher than the second humidity threshold, it is necessary to stop the humidification before the second humidity threshold is reached, which indicates that the room environment is too humid. Thus, the condition for suspending the operation of the humidifier can be accurately judged. Not only can meet the humidification requirements of users, but also can avoid resource waste.

Further, the first humidity threshold and the second humidity threshold may be adjusted according to actual conditions. In particular, the human body's demand for indoor humidity is temperature dependent. Generally, the suitable humidity of human body increases with the increase of temperature. For example, at an indoor temperature of 18 ℃, a suitable humidity is 30% to 40%; when the indoor temperature is 25 ℃, the suitable humidity is 40% to 50%. In accordance with this rule, the first humidity threshold value and/or the second humidity threshold value should be increased as the temperature increases.

As shown in fig. 5, another method for controlling a humidifier according to an embodiment of the present disclosure includes:

s50, the humidifier obtains a pressure differential across the wet film.

And S51, under the condition that the pressure difference is greater than or equal to the first preset value and less than the second preset value, the humidifier enters a first descaling mode.

And S52, under the condition that the pressure difference is larger than the second preset value, the humidifier enters a second descaling mode.

S53, the humidifier receives a pressure differential across the wet film.

And S54, when the pressure difference is smaller than the first preset value, the humidifier exits the first descaling mode or the second descaling mode.

By adopting the method for controlling the humidifier provided by the embodiment of the disclosure, the following technical effects can be realized: after acquiring the pressure difference between the front and the back of the wet film, different descaling modes are entered according to the actual pressure difference. Therefore, different descaling modes can be operated according to the actual scaling condition of the humidifier, and the descaling efficiency of the humidifier is improved. In addition, the differential pressure before and after the wet film is continuously detected in the descaling process, and the time for exiting the first descaling mode or the second descaling mode is judged according to the differential pressure, so that the resource waste caused by long-time descaling can be effectively avoided.

As shown in fig. 6, an embodiment of the present disclosure provides an apparatus for controlling a humidifier, which includes a processor (processor)60 and a memory (memory) 61. Optionally, the apparatus may further include a Communication Interface (Communication Interface)62 and a bus 63. The processor 60, the communication interface 62 and the memory 61 may communicate with each other through a bus 63. Communication interface 62 may be used for information transfer. The processor 60 may invoke logic instructions in the memory 61 to perform the method for controlling the humidifier of the above-described embodiment.

Furthermore, the logic instructions in the memory 61 may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.

The memory 61 is a storage medium and can be used for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 60 executes functional applications and data processing by executing program instructions/modules stored in the memory 61, i.e. implements the method for controlling the humidifier in the above-described embodiment.

The memory 61 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 61 may include a high-speed random access memory, and may also include a nonvolatile memory.

The embodiment of the disclosure provides a humidifier, which comprises the device for controlling the humidifier.

Embodiments of the present disclosure provide a storage medium storing computer-executable instructions configured to perform the above-described method for controlling a humidifier.

The storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. A method for controlling a humidifier, the humidifier comprising: a circulating water pipe; a first water pump configured to push the water in the circulation water pipe to circulate; the second water pump is used for injecting water into the inner cavity of the humidifier; a blower configured to blow the humidified air into the room; the method comprises the following steps:

obtaining the pressure difference before and after the wet film;

controlling the humidifier to enter a first descaling mode under the condition that the pressure difference is greater than or equal to a first preset value and smaller than a second preset value;

controlling the humidifier to enter a second descaling mode under the condition that the pressure difference is greater than or equal to a second preset value;

wherein the first preset value is smaller than the second preset value.

2. The method of claim 1, wherein the first descaling mode comprises: and controlling the first water pump to continuously operate.

3. The method of claim 1, wherein the second descaling mode comprises: and controlling the first water pump to continuously operate, and turning on the second water pump.

4. The method of claim 3, wherein the second descaling mode further comprises: and controlling the first water pump to accelerate the circulation speed.

5. The method of claim 1, wherein said obtaining a pressure differential across the wet film comprises:

receiving a pressure P1 before the wet film and a pressure P2 after the wet film;

and calculating the pressure difference delta P between the front and the back of the wet film, namely P2-P1.

6. The method according to any one of claims 1 to 5, further comprising, before said obtaining the pressure difference across the wet film:

acquiring indoor humidity;

when the indoor humidity is lower than a first humidity threshold value, a first water pump and a second water pump are started, and a fan is started to humidify the indoor air;

when the indoor humidity is greater than or equal to the second humidity threshold value, the second water pump is closed;

wherein the first humidity threshold is less than the second humidity threshold.

7. The method of any one of claims 1 to 5, further comprising, after controlling the humidifier to enter the first descaling mode or controlling the humidifier to enter the second descaling mode:

receiving the pressure difference before and after the wet film, and judging whether the pressure difference is smaller than a first preset value;

and exiting the first descaling mode or the second descaling mode when the pressure difference is smaller than a first preset value.

8. An apparatus for controlling a humidifier comprising a processor and a memory storing program instructions, wherein the processor is configured to perform a method for controlling a humidifier according to any one of claims 1 to 7 when executing the program instructions.

9. A humidifier, comprising:

the apparatus for controlling a humidifier according to claim 8;

a circulating water pipe;

a first pressure sensor configured to detect a pressure before the wet film;

a second pressure sensor configured to detect a pressure after the wet film;

a first water pump configured to push the water in the circulating water pipe to circulate and to be controlled to be switched on and off;

the second water pump is used for injecting water into the inner cavity of the humidifier and can be controlled to be switched on and off;

and a blower fan configured to blow the humidified air into the room.

10. A storage medium storing program instructions, characterized in that the program instructions, when executed, perform a method for controlling a humidifier according to any one of claims 1 to 7.