CN114198833B

CN114198833B - Method and device for controlling humidifier, humidifier and storage medium

Info

Publication number: CN114198833B
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: 2023-08-15
Anticipated expiration: 2041-11-17
Also published as: CN114198833A

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 a 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 larger 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 larger than or equal to a second preset value; wherein the first preset value is smaller than the second preset value. After the pressure difference before and after the wet film is obtained, 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, so that 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 humidifier, humidifier and storage medium

Technical Field

The application relates to the technical field of intelligent household appliances, in particular to a method and device for controlling a humidifier, the humidifier and a storage medium.

Background

The wet film humidifying system has the problems that scaling can occur after long-term use, the scaling quantity is increased to a certain degree, the humidifying quantity is attenuated, the service life of a wet film core body is shortened, and the like.

In order to reduce scaling of a humidifying system, an automatic cleaning type descaling device is disclosed in the prior art, 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 of the device, and the water outlet pressure sensor and the water inlet pressure sensor are respectively and electrically connected with a differential pressure controller. And when the pressure difference controller detects that the pressure difference between the water outlet pressure sensor and the water inlet pressure sensor is larger than a preset value, the scale is automatically cleaned.

In the process of implementing the present 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 indiscriminate descaling is carried out on different scaling conditions in the descaling process, so that the descaling efficiency is lower.

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, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

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

In some embodiments, the method comprises: obtaining a 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 larger 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 larger than or equal to a second preset value; wherein the first preset value is smaller than the second preset value; the first descaling mode includes: controlling the first water pump to continuously run; the second descaling mode includes: controlling the first water pump to continuously run, and opening the second water pump; the second descaling mode further comprises: and controlling the first water pump to accelerate the circulation speed and improve the rotating speed of the fan.

In some embodiments, the apparatus comprises: comprising a processor and a memory storing program instructions, the processor being configured to perform the above-described method for controlling a humidifier when said program instructions are run.

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 wet film; a second pressure sensor configured to detect a pressure after the wet film; the first water pump is arranged to push water in the circulating water pipe to circulate and can be controlled to be switched on and off periodically during normal operation of the humidifier; the second water pump is arranged to fill 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 the pressure difference before and after the wet film is obtained, 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, so that 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 and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic structural view of a humidifier according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a method for controlling a humidifier provided by 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 disclosure;

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

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

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. 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 still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The term "plurality" means two or more, unless otherwise indicated.

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

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.

In the embodiment of the disclosure, the intelligent home appliance refers to a home appliance formed after a microprocessor, a sensor technology and a network communication technology are introduced into the home appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent home appliance often depends on the application and processing of modern technologies such as the internet of things, the internet and an electronic chip, for example, the intelligent home appliance can realize remote control and management of a user on the intelligent home appliance by connecting the electronic appliance.

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

The hollow inner cavity of the humidifier is provided with 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.

In the actual running 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 upper part of 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 and forms a uniform water film. When the dry air passes through the wet film 1, the water molecules fully absorb heat in the air to vaporize and evaporate, so that the humidity in the air is increased to form moist air. The fan 6 blows moist air to the indoor environment, so as to achieve the purpose of increasing the humidity of the indoor environment.

The hollow inner cavity of the humidifier is also provided with a first pressure sensor 7, a second pressure sensor 8 and a pressure difference switch 9. Wherein a first pressure sensor 7 is arranged in front of the wet film 1 for detecting the pressure in front of the wet film 1. The second pressure sensor 8 is provided after the wet film 1 for detecting the pressure after the wet film 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 turned on or turned off according to the magnitude of the differential pressure. Wherein air flows from before 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 achieved: 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 turned on or 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, so that the descaling efficiency of the humidifier is improved.

Optionally, the humidifier further comprises: a high water level switch 10 and a low water level switch 11. During the water filling process, when the water level reaches the high water level switch 10, the second water pump 5 is turned off. During normal operation 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 perform water injection. In this way, the water level in the water storage tray can be ensured to be moderate.

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

s20, the humidifier obtains the pressure difference before and after the wet film.

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

S23, under the condition that the pressure difference is larger than a 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 achieved: after the pressure difference before and after the wet film is obtained, 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, so that the descaling efficiency of the humidifier is improved.

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

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

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

Optionally, the second descaling mode includes the humidifier controlling the first water pump to continue to operate and turning on the second water pump. The second water pump is turned on to increase the water quantity in the humidifier, so that the flow rate of the water on the surface of the wet film is increased, and the fluidity 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 was 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 scale is taken away, and the descaling strength is improved.

Optionally, the second descaling mode further includes increasing a fan speed. Specifically, the fan speed was increased to 90%. Like this, fan rotational speed increases, and solid scale deposit is more easy to leave the humidifier along with the air, can promote the scale removal effect.

Optionally, the humidifier issues a prompt when the pressure differential is greater than a third preset value. Therefore, under the condition that the scaling condition of the wet film affects normal use, a user can be reminded of timely replacing the wet film.

As shown in connection with fig. 3, an embodiment of the present disclosure provides another method for controlling a humidifier, comprising:

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.

S31, the humidifier calculates a differential pressure Δp=p2-P1 before and after the wet film.

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

S33, under the condition that the pressure difference is larger than a 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 achieved: after the pressure difference before and after the wet film is obtained, 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, so that the descaling efficiency of the humidifier is improved. In addition, the pressure difference before and after the wet film is detected and calculated in the actual operation process to obtain the pressure difference, so that the current scaling condition can be accurately reflected, and the scaling is more accurate.

As shown in connection with fig. 4, an embodiment of the present disclosure provides another method for controlling a humidifier, comprising:

s40, the humidifier acquires indoor humidity.

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

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

S43, the humidifier obtains the pressure difference before and after the wet film.

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

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

Alternatively, the indoor humidity may be acquired by a humidity sensor installed in the room. The humidity sensor can be arranged on indoor wall bodies, air conditioners, sweeping robots and other devices or positions. Thus, the humidifier itself is not required to have a function of acquiring humidity information, and the requirement for the humidifier itself is reduced. In addition, if the equipment for acquiring the humidity is intelligent household electrical appliances such as an intelligent refrigerator and an intelligent air conditioner, the connection between the intelligent household electrical appliances can be further enhanced, the utilization rate of the intelligent household electrical appliances is improved, and the household system is more intelligent.

Indoor humidity may also be acquired by the humidifier itself, which is provided with a humidity sensor. Thus, the humidifier does not need to be interconnected with other equipment, and the humidifier is more flexible to use and is not limited by scenes or other equipment.

Optionally, the first humidity threshold has a value in the range of [25%,40% ]. If the indoor air humidity is lower than the first humidity threshold, the indoor environment of the human body is too dry, and humidification is needed. Thus, the condition for starting the operation of the humidifier can be accurately judged. The humidification requirements of users can be met, and resource waste is avoided.

Optionally, the second humidity threshold has a value in the range of [55%,65% ]. If the humidity of the air in the room is higher than the second humidity threshold, it is indicated that the indoor environment is too humid, and therefore it is necessary to stop humidification before the second humidity threshold is reached. Thus, the condition for stopping the humidifier can be accurately judged. The humidification requirements of users can be met, and resource waste is avoided.

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

As shown in connection with fig. 5, an embodiment of the present disclosure provides another method for controlling a humidifier, comprising:

s50, the humidifier obtains the pressure difference before and after the wet film.

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

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

S53, the humidifier receives the pressure difference before and after the wet film.

S54, under the condition that the pressure difference is smaller than a first preset value, the humidifier exits from 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 achieved: after the pressure difference before and after the wet film is obtained, 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, so that the descaling efficiency of the humidifier is improved. In addition, the pressure difference 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 pressure difference, so that the resource waste caused by long-time descaling can be effectively avoided.

As shown in connection with fig. 6, an embodiment of the present disclosure provides an apparatus for controlling a humidifier, including a processor (processor) 60 and a memory (memory) 61. Optionally, the apparatus may also 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 via the bus 63. The communication interface 62 may be used for information transfer. The processor 60 may call logic instructions in the memory 61 to perform the method for controlling the humidifier of the above-described embodiment.

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

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

The memory 61 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal device, etc. 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 may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only 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. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (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 disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, 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 one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

Those of skill in the art will 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 depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The flowcharts 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 that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which 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; the first water pump is arranged to push water in the circulating water pipe to circulate, and is periodically opened and closed in the normal operation process of the humidifier; the second water pump is arranged to fill 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 a 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 larger 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 larger than or equal to a second preset value;

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

the first descaling mode includes: controlling the first water pump to continuously run;

the second descaling mode includes: controlling the first water pump to continuously run, and opening the second water pump;

the second descaling mode further comprises: and controlling the first water pump to accelerate the circulation speed and improve the rotating speed of the fan.

2. The method of claim 1, wherein said obtaining a pressure differential before and after wet film comprises:

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

the differential pressure Δp=p2-P1 before and after wet film was calculated.

3. The method according to claim 1 or 2, further comprising, before said obtaining the pressure difference before and after the wet film:

acquiring indoor humidity;

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

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

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

4. The method of claim 1 or 2, further comprising, after the controlling the humidifier into the first descaling mode or the controlling the humidifier into 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 or not;

and under the condition that the pressure difference is smaller than a first preset value, exiting the first descaling mode or the second descaling mode.

5. An apparatus for controlling a humidifier comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling a humidifier according to any one of claims 1 to 4 when the program instructions are run.

6. A humidifier, comprising:

the apparatus for controlling a humidifier of claim 5;

a circulating water pipe;

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

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

the first water pump is arranged to push water in the circulating water pipe to circulate and can be controlled to be switched on and off periodically during normal operation of the humidifier;

the second water pump is arranged to fill 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.

7. A storage medium storing program instructions which, when executed, perform the method for controlling a humidifier of any one of claims 1 to 4.