Dehumidifier and control method thereof

Abstract

The application discloses a dehumidifier and a control method thereof, a plurality of sound detection modules are used for detecting actual sound; a dehumidifier sound storage module is used for storing dehumidifier sound characteristics corresponding to each sound detection module of the dehumidifier in a plurality of operating states when there is no external sound source; a human sound characteristic storage module is used for storing sound characteristics emitted by a human; a control module is used for acquiring a current operating state of the dehumidifier, acquiring dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in the current operating state; determining external sound source characteristics of the dehumidifier according to the actual sound and the dehumidifier sound characteristics, determining the position of the external sound source when the external sound source characteristics are consistent with the sound characteristics emitted by the human, and controlling the air outlet direction of the air guide device according to the position of the external sound source. The application can eliminate the influence of the dehumidifier sound characteristics on the external sound source characteristics in the operating state of the dehumidifier, accurately identify whether the external sound source is human voice and the position of the human voice, and control the air outlet direction of the air guide device according to the position of the human voice, so that the human comfort can be improved.

Description

Technical Field

[0001] This invention belongs to the field of dehumidifier technology, specifically, it relates to a dehumidifier and its control method that can automatically adjust the airflow direction according to the position of a human body. Background Technology

[0002] High humidity not only leads to poor human comfort but also causes great harm to the human body. Therefore, dehumidifiers are becoming increasingly popular.

[0003] The dehumidifier has an air inlet and an air outlet on its casing. Inside the casing, there is a dehumidification module and a fan. When the fan is running, it generates airflow that enters the dehumidifier from the air inlet, flows through the dehumidification module and the fan, and is discharged from the air outlet. The airflow dehumidifies as it passes through the dehumidification module.

[0004] The air outlet of existing dehumidifiers is generally set as an air outlet grille, and the air outlet direction is fixed. The dehumidifier cannot automatically adjust the air outlet direction. When the user is in the direction of the air outlet, the air outlet blows directly on the human body, causing discomfort.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0006] This invention proposes a dehumidifier to solve the technical problem that existing dehumidifiers cannot automatically adjust the air outlet direction, resulting in the air outlet blowing directly on the human body when the user is in the direction of the air outlet, causing discomfort.

[0007] To achieve the above-mentioned invention / design objectives, the present invention adopts the following technical solution:

[0008] A dehumidifier includes an air outlet and an air guide device located at the air outlet, the dehumidifier comprising:

[0009] Several sound detection modules are used to detect actual sound;

[0010] A dehumidifier sound storage module is used to store the dehumidifier sound characteristics corresponding to each of the sound detection modules when the dehumidifier is in several operating states without an external sound source.

[0011] Human voice feature storage module, used to store the voice features emitted by a person;

[0012] The control module is used to obtain the current operating status of the dehumidifier, and to obtain the dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in the current operating status; it is used to determine the external sound source characteristics of the dehumidifier based on the actual sound and the dehumidifier sound characteristics, to determine the location of the external sound source when the external sound source characteristics match the sound characteristics emitted by the person, and to control the air outlet direction of the air guide device based on the location of the external sound source.

[0013] As described above, in the dehumidifier, the control module is used to receive the dehumidifier sound correction control signal and to control the dehumidifier to run all operating states in sequence. In each operating state, several sound detection modules detect the sound characteristics of the dehumidifier and store them in the dehumidifier sound storage module.

[0014] As described above, in the dehumidifier, the control module is used to determine whether the position of the external sound source of the dehumidifier has changed, and when the position of the external sound source of the dehumidifier changes dynamically, it controls the air outlet direction of the air guide device to be dynamically adjusted.

[0015] As described above, in a dehumidifier, the control module is used to control the air outlet direction of the air guide device according to the position of the external sound source when the characteristics of the external sound source match the characteristics of human sound and the position is within a set range, thereby reducing the speed of the compressor and fan of the dehumidifier.

[0016] As described above, in the dehumidifier, the control module is used to obtain the location of the device that can emit human voice characteristics. When the location of the external sound source determined by the control module is the same as the location of the device that can emit human voice characteristics, the air outlet direction of the air guide device is kept unchanged.

[0017] The dehumidifier described above includes a first sound detection module, a second sound detection module, and a third sound detection module. The first sound detection module and the second sound detection module are located on the same horizontal plane or close to the same horizontal plane, and the third sound detection module is higher or lower than the first sound detection module and the second sound detection module.

[0018] A control method for a dehumidifier, wherein the dehumidifier has an air guide device installed at its air outlet, and the control method is as follows:

[0019] Several sound detection modules detect the actual sound respectively;

[0020] Obtain the current operating status of the dehumidifier;

[0021] Obtain the dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in its current operating state;

[0022] Based on the actual sound and the sound characteristics of the dehumidifier, the external sound source characteristics of the dehumidifier are determined. When the external sound source characteristics match the sound characteristics of a human, the location of the external sound source is determined. The air outlet direction of the air guide device is adjusted according to the location of the external sound source.

[0023] The dehumidifier control method described above includes the step of correcting the sound characteristics of the dehumidifier:

[0024] Receive dehumidifier sound correction control signal;

[0025] The dehumidifier is controlled to run all operating states in sequence. In each operating state, several sound detection modules detect the sound characteristics of the dehumidifier. When the sound characteristics of the dehumidifier change in the corresponding operating state, the sound characteristics of the dehumidifier are corrected.

[0026] The dehumidifier control method described above includes: when it is determined that the characteristics of the external sound source of the dehumidifier match the characteristics of human sound and the location is within a set range, controlling the air outlet direction of the air guide device and reducing the speed of the compressor and fan of the dehumidifier.

[0027] The control method for the dehumidifier described above is as follows:

[0028] To locate the device capable of emitting human voice characteristics;

[0029] When the location of the external sound source of the dehumidifier is determined to be the same as the location of a device that can emit human voice characteristics based on the actual sound and the sound characteristics of the dehumidifier, the air outlet direction of the air guide device is kept unchanged.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are:

[0031] This invention relates to a dehumidifier comprising an air outlet, an air guiding device, several sound detection modules, a dehumidifier sound storage module, a human voice feature storage module, and a control module. The sound detection modules detect actual sounds. The dehumidifier sound storage module stores the dehumidifier sound features corresponding to each sound detection module under various operating states of the dehumidifier when there is no external sound source. The human voice feature storage module stores the sound features emitted by humans. The control module acquires the current operating state of the dehumidifier and the corresponding dehumidifier sound features of the sound detection modules under the current operating state. It determines the external sound source features based on the actual sound and the dehumidifier sound features, identifies the location of the external sound source when the external sound source features match human voice features, and controls the air outlet direction of the air guiding device based on the location of the external sound source. This invention eliminates the influence of the dehumidifier sound features on the external sound source features during dehumidifier operation, accurately identifies whether the external sound source is a human voice and its location, and controls the air outlet direction of the air guiding device based on the location of the human voice, thereby improving human comfort.

[0032] The dehumidifier control method of this invention is as follows: several sound detection modules detect the actual sound; the current operating state of the dehumidifier is obtained; the sound characteristics of the dehumidifier corresponding to the sound detection modules in the current operating state are obtained; the external sound source characteristics of the dehumidifier are determined based on the actual sound and the dehumidifier sound characteristics; when the external sound source characteristics match the sound characteristics emitted by a human, the location of the external sound source is determined; the air outlet direction of the air guide device is adjusted according to the location of the external sound source; otherwise, the air outlet direction of the air guide device remains unchanged. This invention can eliminate the influence of the dehumidifier's sound characteristics on the external sound source characteristics during dehumidifier operation, accurately identify whether the external sound source is a human voice and its location, and control the air outlet direction of the air guide device according to the location of the human voice, thereby improving human comfort.

[0033] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the dehumidifier with the top cover removed, according to a specific embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram showing the location of the sound detection module in a specific embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the dehumidifier according to a specific embodiment of the present invention.

[0038] Figure 4 This is a control flowchart of a specific embodiment of the present invention.

[0039] In the picture,

[0040] 1. Shell;

[0041] 2. Air outlet;

[0042] 3. Air guide assembly;

[0043] 41. First sound detection module; 42. Second sound detection module; 43. Third sound detection module. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. In the description of embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0048] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0049] As people's demands for a more comfortable living environment increase, dehumidifiers are being used more and more widely in people's daily lives.

[0050] Existing dehumidifiers typically have an air outlet grille, and the air outlet direction is fixed. The dehumidifier cannot automatically adjust the air outlet direction, which means that when the user is in the direction of the air outlet, the air outlet blows directly on the body, causing discomfort.

[0051] To address the aforementioned issues, the dehumidifier's air outlet grille is replaced with an adjustable airflow guide device. Furthermore, a dehumidifier sound storage module, a human voice feature storage module, several sound detection modules, and a control module are added. The sound detection modules store the actual sound data. The dehumidifier sound storage module stores the sound characteristics of each sound detection module under various operating states when there is no external sound source. The human voice feature storage module stores the sound characteristics emitted by humans. The control module acquires the current operating state of the dehumidifier and the corresponding sound characteristics of the sound detection modules under that state. It also determines the external sound source characteristics based on the actual sound and the dehumidifier sound characteristics, identifies the location of the external sound source when its characteristics match human voice characteristics, and controls the airflow direction of the guide device based on the location of the external sound source. When the dehumidifier is running, it acquires the current operating status and reads the dehumidifier sound characteristics corresponding to the position of each sound detection module when there is no external sound source in the current operating status. The sound detection module detects the actual sound of the dehumidifier running in the current operating status. The control module determines the external sound source characteristics based on the actual sound and the dehumidifier sound characteristics to eliminate the influence of the dehumidifier sound characteristics on the external sound source. When the external sound source characteristics match the characteristics of human voices, the location of the external sound source is determined. The air outlet direction of the air guide device is controlled according to the location of the external sound source. It can accurately identify whether the external sound source is a human voice and the location of the human voice, and control the air outlet direction of the air guide device according to the location of the human voice, which can improve human comfort.

[0052] The following is in conjunction with the appendix Figures 1-3 Detailed explanation of dehumidifiers:

[0053] The dehumidifier includes a housing 1, a dehumidification module and a fan located inside the housing 1, an air inlet and an air outlet 2 located on the housing 1, and an air guide assembly 3 with adjustable air outlet direction provided at the air outlet 2.

[0054] The dehumidification module is used to dehumidify the air.

[0055] The fan is used to generate a circulating airflow inside and outside the housing 1 so that the air circulates through the dehumidification module to achieve dehumidification.

[0056] An air inlet and an air outlet 2 are provided on the housing 1 to enable the dehumidifier to take in and take out air.

[0057] The adjustable air outlet direction guide component 3 is an air outlet component 3 whose operation can be controlled by the control module to achieve automatic adjustment of the air outlet direction 2.

[0058] The air guide assembly 3 includes a drive mechanism and an air guide plate or air guide grille rotatably disposed at the air outlet 2. The drive mechanism receives the control signal from the control module and drives the air guide plate or air guide grille to rotate in order to adjust the air outlet direction.

[0059] exist Figure 3 In the example, the dehumidifier also includes several sound detection modules, a dehumidifier sound storage module, a human voice feature storage module, and a control module. Through the synergistic effect of these modules, the dehumidifier can eliminate the influence of its sound features on external sound sources during operation, accurately identify whether the external sound source is a human voice and its location, and control the airflow direction of the air guide device based on the location of the human voice, thereby improving human comfort.

[0060] The following is a detailed explanation of each of the above modules:

[0061] The control module is used to obtain the current operating status of the dehumidifier.

[0062] After receiving the start command, the dehumidifier enters a certain operating state.

[0063] Fixed-frequency dehumidifiers typically operate at a certain speed setting, while variable-frequency dehumidifiers adjust the frequency based on the target humidity and the actual humidity.

[0064] Description of several operating states:

[0065] For fixed-frequency dehumidifiers, the dehumidification efficiency is generally controlled by setting several speed levels, such as speed one, speed two, speed three, etc. The speed of the dehumidifier's compressor and fan is determined at each speed level. Therefore, several operating states refer to several operating speed levels.

[0066] For example, if the dehumidifier receives a gear command of gear two, then the control module will determine that the dehumidifier's current operating status is gear two.

[0067] For variable frequency dehumidifiers, since the compressor and fan speeds of the variable frequency dehumidifier are in a state of change, several setting ranges are set for the compressor and fan speeds. Therefore, several operating states refer to several setting ranges for the compressor and fan speeds: setting range 1, setting range 2, ..., setting range n.

[0068] For example, a dehumidifier can periodically obtain the speed of the compressor and fan through a speed detection device. If the speed detection device detects that the speed of the compressor and fan is in the set range 2, the control module obtains the current operating state of the dehumidifier as the set range 2; if the speed detection device detects that the speed of the compressor and fan is in the set range 1, the control module obtains the current operating state of the dehumidifier as the set range 1.

[0069] Several sound detection modules are used to detect the actual sound of the dehumidifier during its current operation.

[0070] Actual sound features can be extracted from actual sounds. These features include at least volume, and also relevant parameters related to the human voice. The presence of human voice features indicates the presence of a human voice at the external sound source; otherwise, it indicates the absence of a human voice at the external sound source.

[0071] Several sound detection modules are provided to facilitate the localization of external sounds from the dehumidifier.

[0072] exist Figure 2 In the example, the dehumidifier is equipped with three sound detection modules: a first sound detection module 41, a second sound detection module 42, and a third sound detection module 43. By using these three sound detection modules, the accuracy of determining the location of external sound sources can be improved.

[0073] Specifically, the third sound detection module 43 is not on the same horizontal plane as the first sound detection module 41 or the second sound detection module 42, nor is it on the same vertical plane. That is, the third sound detection module 43 is offset from the first sound detection module 41 or the second sound detection module 42 in the height direction, and offset from the first sound detection module 41 and the second sound detection module 42 in the front-back direction.

[0074] Specifically, the first sound detection module 41 is located at the front left side of the bottom of the dehumidifier, the second sound detection module 42 is located at the front right side of the bottom of the dehumidifier, and the third sound detection module 43 is located at the rear left side of the top of the dehumidifier.

[0075] Of course, the specific position of the sound detection module can be changed appropriately according to the structural space, but the relative positions of the three remain unchanged.

[0076] The purpose of this configuration is to enable the first sound detection module 41 and the second sound detection module 42 to more accurately identify the operating noise of the compressor under each working state, to enable the third sound detection module 43 to more accurately identify the operating noise of the fan, to eliminate interference from the dehumidifier itself, and to make it easier for the control module to determine whether the noise around the dehumidifier comes from the front or back of the dehumidifier, or from the left or right side.

[0077] In some embodiments, the first sound detection module 41 and the second sound detection module 42 are close to the same horizontal plane, and the third sound detection module 43 is higher or lower than the second sound detection module 42 and the first sound detection module 41.

[0078] The dehumidifier sound storage module is used to store the dehumidifier sound characteristics corresponding to each sound detection module under several operating states when there is no external sound source.

[0079] The dehumidifier sound feature storage module can be set inside the dehumidifier or outside the dehumidifier, for example, on a cloud server.

[0080] The dehumidifier sound storage module stores the sound characteristics of the dehumidifier in advance.

[0081] In some embodiments, before the dehumidifier leaves the factory, in a laboratory without external sound sources (i.e., in a silent state), the dehumidifier is controlled to operate in several operating states. In each operating state, the sound characteristics of the dehumidifier detected by each sound detection module are stored in the dehumidifier sound storage module.

[0082] The following table illustrates the contents stored in the sound storage module of a fixed-frequency dehumidifier:

[0083] First gear Second gear Third gear First sound detection module Dehumidifier sound feature 11 Dehumidifier sound feature 12 Dehumidifier sound feature 13 Second sound detection module Dehumidifier sound feature 21 Dehumidifier sound feature 22 Dehumidifier sound feature 23 Third sound detection module Dehumidifier sound feature 31 Dehumidifier sound feature 32 Dehumidifier sound feature 33

[0084] The following table illustrates the contents stored in the sound storage module of a variable frequency dehumidifier:

[0085] Set interval 1 Set interval 2 Set interval 3 First sound detection module Dehumidifier sound feature 11' Dehumidifier sound feature 12' Dehumidifier sound feature 13' Second sound detection module Dehumidifier sound feature 21' Dehumidifier sound feature 22' Dehumidifier sound feature 23' Third sound detection module Dehumidifier sound feature 31' Dehumidifier sound feature 32' Dehumidifier sound feature 33'

[0086] In some embodiments, after a period of operation, dust may accumulate on the fan or dehumidification module, causing changes in the sound characteristics of the dehumidifier. To avoid interference with the identification of external sound sources, the dehumidifier can also perform dehumidifier sound correction.

[0087] The control module is used to correct the dehumidifier's sound and send it to the dehumidifier's sound storage module.

[0088] Since dehumidifier sound correction must be performed in the absence of external noise sources, users typically issue the dehumidifier sound correction control signal when there are no external noise sources interfering.

[0089] The control module is used to receive the dehumidifier sound correction control signal and control the dehumidifier to run all operating states in sequence. In each operating state, several sound detection modules detect the sound characteristics of the dehumidifier and store them in the dehumidifier sound storage module.

[0090] When a fixed-frequency dehumidifier receives a sound correction control signal, it controls the dehumidifier to operate at the first speed setting. At the first speed setting, three sound detection modules detect the dehumidifier's sound characteristics and store them in the dehumidifier's sound storage module. At the second speed setting, the three sound detection modules detect the dehumidifier's sound characteristics and store them in the dehumidifier's sound storage module. At the third speed setting, the three sound detection modules detect the dehumidifier's sound characteristics and store them in the dehumidifier's sound storage module.

[0091] When the inverter dehumidifier receives the dehumidifier sound correction control signal, it controls the dehumidifier to operate in set interval 1. In set interval 1, three sound detection modules detect the dehumidifier's sound characteristics and store them in the dehumidifier sound storage module. In set interval 2, the three sound detection modules detect the dehumidifier's sound characteristics and store them in the dehumidifier sound storage module. In set interval 3, the three sound detection modules detect the dehumidifier's sound characteristics and store them in the dehumidifier sound storage module.

[0092] The control module can also determine whether the dehumidifier sounds detected by the three sound detection modules are the same as the data originally stored in the storage module. If they are the same, no storage is required; if they are different, storage is performed to replace the inappropriate data.

[0093] The sound characteristic of a dehumidifier is usually its volume.

[0094] The human voice feature storage module is used to store the voice features emitted by a person.

[0095] The human voice feature storage module can be installed inside the dehumidifier or outside the dehumidifier, for example, on a cloud server.

[0096] The control module can also learn the user's voice characteristics through self-learning to correct the stored content of the voice characteristic storage module, so as to more accurately recognize the human voice.

[0097] Sounds produced by humans can be sounds produced by bodily organs (e.g., talking, singing, breathing) or sounds produced by bodily activities (e.g., walking, running, clapping).

[0098] In some embodiments, the characteristics of a human voice include features such as pitch, timbre, and loudness. Of course, the above features are not limited.

[0099] By recognizing human voice characteristics, interference from other devices (such as other household appliances like washing machines) can be avoided with the dehumidifier.

[0100] The control module is used to obtain the dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in its current operating state.

[0101] The control module obtains the current operating status of the dehumidifier and reads the dehumidifier sound features corresponding to the current operating status from the dehumidifier sound storage module, including the dehumidifier sound features corresponding to the three sound detection modules respectively.

[0102] For example, if the control module obtains that the current operating state of the dehumidifier is at level two, it reads the dehumidifier sound feature 12 corresponding to the first sound detection module, the dehumidifier sound feature 22 corresponding to the second sound detection module, and the dehumidifier sound feature 32 corresponding to the third sound detection module in level two from the dehumidifier sound storage module.

[0103] The control module is used to determine the external sound source characteristics of the dehumidifier based on the actual sound and the sound characteristics of the dehumidifier. When the external sound source characteristics match the sound characteristics of a human, the position of the external sound source is determined, and the air outlet direction of the air guide device is controlled according to the position of the external sound source.

[0104] The airflow direction of the air guide device is controlled according to the location of the external sound source to avoid the location of the external sound source.

[0105] In some embodiments, a wind-avoidance or wind-blowing selection button can be provided. When wind-avoidance is selected, the air outlet direction of the air guide device is controlled to avoid the location of the external sound source according to the location of the external sound source. When wind-blowing is selected, the air outlet direction of the air guide device is controlled to blow towards the location of the external sound source according to the location of the external sound source.

[0106] The control module extracts actual sound features based on the actual sound, such as volume, pitch, timbre, and audio characteristics. The volume of the external sound source can be determined by subtracting the volume of the dehumidifier's sound features from the actual sound features. The pitch, timbre, and audio of the external sound source are determined based on the actual situation. When the characteristics of the external sound source match those of a human voice, the location of the external sound source is determined by three sound detection modules. In some embodiments, this can be determined by the time difference between the three sound detection modules receiving the external sound source. Of course, it can also be determined by other existing methods.

[0107] The control module is used to determine whether the location of the external sound source of the dehumidifier has changed. When the location of the external sound source of the dehumidifier changes dynamically, the air outlet direction of the air guide device is dynamically adjusted.

[0108] exist Figure 2In the example, the volume detected by the first sound detection module 41 is equal to or approximately equal to the volume detected by the third sound detection module 43, and both are greater than the volume detected by the second sound detection module 42. When the volume detected by the three sound detection modules gradually increases, it indicates that someone is gradually approaching the dehumidifier and is located on the left front side of the dehumidifier. The air guide device is controlled to gradually deflect backward or to the right to avoid the person. When the volume detected by the three sound detection modules gradually decreases, it indicates that someone is gradually moving away from the dehumidifier and is located on the left front side of the dehumidifier. The air guide device is controlled to gradually deflect forward or to the left to increase the air outlet area.

[0109] When the volume detected by the third sound detection module 43 is greater than the volume set threshold detected by the first sound detection module 41, and is also greater than the volume detected by the second sound detection module 42; when the volume detected by all three sound detection modules gradually increases, it indicates that someone is gradually approaching the dehumidifier and is located on the left rear side of the dehumidifier. Control the air guide device to gradually deflect forward or to the right to avoid the person; when the volume detected by all three sound detection modules gradually decreases, it indicates that someone is gradually moving away from the dehumidifier and is located on the left rear side of the dehumidifier. Control the air guide device to gradually deflect backward or to the left to increase the air outlet area.

[0110] When the volume detected by the first sound detection module 41 is equal to or approximately equal to the volume detected by the third sound detection module 43, and both are less than the volume detected by the second sound detection module 42; when the volume detected by all three sound detection modules gradually increases, it indicates that someone is gradually approaching the dehumidifier and is located on the right front side of the dehumidifier. The air guide device is controlled to gradually deflect backward or to the left to avoid the person; when the volume detected by all three sound detection modules gradually decreases, it indicates that someone is gradually moving away from the dehumidifier and is located on the right front side of the dehumidifier. The air guide device is controlled to gradually deflect forward or to the right to increase the air outlet area.

[0111] When the volume detected by the first sound detection module 41 is less than the volume set threshold detected by the third sound detection module 43, and is also less than the volume detected by the second sound detection module 42; when the volume detected by all three sound detection modules gradually increases, it indicates that someone is gradually approaching the dehumidifier and is located on the right rear side of the dehumidifier. The air guide device is controlled to gradually deflect forward or to the left to avoid the person. When the volume detected by all three sound detection modules gradually decreases, it indicates that someone is gradually moving away from the dehumidifier and is located on the right rear side of the dehumidifier. The air guide device is controlled to gradually deflect backward or to the right to increase the air outlet area.

[0112] When the volume detected by the first sound detection module 41 is equal to or approximately equal to the volume detected by the third sound detection module 43, and both are greater than the volume detected by the second sound detection module 42; when the volume detected by the three sound detection modules gradually changes to the volume of the second sound detection module 42 being greater than the volume of the first sound detection module 41 and the third sound detection module 43, it indicates that someone is moving from the left side to the right side of the dehumidifier. The air guide device is then gradually deflected to the rear or first blows air to the right and then gradually blows air to the left to avoid the person.

[0113] When the volume detected by the first sound detection module 41 is equal to or approximately equal to the volume detected by the third sound detection module 43, and both are less than the volume detected by the second sound detection module 42; when the volume detected by the three sound detection modules gradually changes to the volume of the second sound detection module 42 being less than the volume of the first sound detection module 41 and the third sound detection module 43, it indicates that someone is moving from the right side of the dehumidifier to the left side. The air guide device is then gradually deflected to the rear or first blows air to the left and then gradually blows air to the right to avoid the person.

[0114] The control module is used to control the air guide device to adjust the air outlet direction when the characteristics of the external sound source match the characteristics of human sound and the location is within the set range; otherwise, the air outlet is operated at the maximum air outlet angle.

[0115] The control module is used to control the air outlet direction of the air guide device according to the location of the external sound source when the characteristics of the external sound source of the dehumidifier match the characteristics of human sound and the location is within the set range. This reduces the speed of the dehumidifier's compressor and fan, thereby reducing noise and preventing the dehumidifier from creating a noisy environment for the human body, affecting human comfort, and interfering with communication with other people.

[0116] In the environment where a dehumidifier operates, there are often other devices that emit human voice characteristics, such as televisions, media players, and mobile devices. To avoid interference from these devices, the control module is used to locate the devices that emit human voice characteristics. The location of these devices can be obtained through device network location services.

[0117] When the control module determines that the location of the external sound source of the dehumidifier is the same as the location of a device that can emit human voice characteristics based on the actual sound and the sound characteristics of the dehumidifier, it indicates that the external sound source is emitted by a device that can emit human voice characteristics. The control module then keeps the air outlet direction of the air guide device unchanged to avoid other devices in the environment of the dehumidifier from affecting the dehumidifier.

[0118] The sound detection module is installed through a shock-absorbing bladder to reduce the noise caused by the resonance between the sound detection module and the dehumidifier. The shock-absorbing bladder is a hollow silicone structure that can be filled with lipid liquid. The shock-absorbing bladder and the dehumidifier are fixed together by adhesive.

[0119] Shock-absorbing bladders are installed in different directions for the sound detection module. There are 1 to 6 installation directions.

[0120] A dehumidifier control method:

[0121] Several sound detection modules detect the actual sound.

[0122] Get the current operating status of the dehumidifier.

[0123] The operating status of a fixed-frequency dehumidifier is the operating speed setting; the operating status of a variable-frequency dehumidifier is the set range of compressor and fan speeds.

[0124] Obtain the dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in its current operating state.

[0125] Among them, the dehumidifier sound characteristics refer to the sound characteristics of the dehumidifier detected by each sound detection module in each operating state when there is no external sound source (i.e., in silent state).

[0126] Determine the external sound source characteristics of the dehumidifier based on the actual sound and the sound characteristics of the dehumidifier. If the external sound source characteristics match the sound characteristics of a human, determine the location of the external sound source. Adjust the air outlet direction of the air guide device according to the location of the external sound source; otherwise, the air outlet direction of the air guide device remains unchanged.

[0127] The actual sound features, such as volume, pitch, timbre, and audio frequency, are extracted based on the actual sound. The volume of the external sound source is determined by subtracting the volume of the dehumidifier's sound features from the actual sound features. The pitch, timbre, and audio frequency of the external sound source are determined based on the actual situation. When the characteristics of the external sound source match those of a human voice, the location of the external sound source is determined through three sound detection modules. Adjustment of the dehumidifier's airflow is only necessary when a human is within the dehumidifier's airflow range; otherwise, no adjustment is required. Therefore, the control method includes: when the characteristics of the external sound source match those of a human voice and the location is within a set range, controlling the airflow direction of the air guide device and reducing the speed of the dehumidifier's compressor and fan; otherwise, the airflow direction of the air guide device remains unchanged, and the speed of the dehumidifier's compressor and fan is controlled by the dehumidifier's operating status.

[0128] The size of the set range is positively correlated with the fan speed.

[0129] To avoid interference from electronic devices that can emit human voices, the control method is as follows:

[0130] To locate the device capable of emitting human voice characteristics;

[0131] When the location of the external sound source of the dehumidifier is determined to be the same as the location of a device that can emit human voice characteristics based on the actual sound and the sound characteristics of the dehumidifier, the air outlet direction of the control air guide device remains unchanged.

[0132] like Figure 4 As shown, the control method of the dehumidifier is as follows:

[0133] S1, Begin.

[0134] S2. Obtain the current operating status of the dehumidifier.

[0135] S3. Detect the actual sound of the dehumidifier during its current operation; obtain the sound characteristics of the dehumidifier corresponding to the current operating state;

[0136] S4. Determine the external sound source characteristics of the dehumidifier based on the actual sound and the sound characteristics of the dehumidifier.

[0137] S5. Determine whether the external sound source features are human voices. If yes, proceed to step S6; otherwise, proceed to step S2.

[0138] S6. Determine the location of the external sound source.

[0139] S7. Determine whether the location of the external sound source is within the set range. If yes, proceed to step S8; otherwise, proceed to step S2.

[0140] S8. Obtain the location of the device that can emit human voice characteristics.

[0141] S9. Determine whether the location of the external sound source is the same as the location of the device that can emit human voice characteristics. If yes, proceed to step S10; otherwise, proceed to step S11.

[0142] S10, keep the air outlet direction of the air guide device unchanged.

[0143] S11. Control the air outlet direction of the air guide device to reduce the speed of the dehumidifier's compressor and fan, and proceed to step S2. In some embodiments, after the dehumidifier has been running for a period of time, dust may accumulate on the fan or dehumidification module, causing changes in the dehumidifier's sound characteristics. To avoid interference with external sound source identification in this case, the dehumidifier control method includes the step of correcting the dehumidifier's sound characteristics:

[0144] Receive dehumidifier sound correction control signal;

[0145] The dehumidifier is controlled to run all operating states in sequence. In each operating state, several sound detection modules detect the sound characteristics of the dehumidifier. When the sound characteristics of the dehumidifier change in the corresponding operating state, the sound characteristics of the dehumidifier in the corresponding operating state are corrected.

[0146] The correction process must be carried out without any external sound source.

[0147] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A dehumidifier, comprising an air outlet and an air guide device located at the air outlet, characterized in that, The dehumidifier includes: Several sound detection modules are used to detect actual sound; A dehumidifier sound storage module is used to store the dehumidifier sound characteristics corresponding to each of the sound detection modules when the dehumidifier is in several operating states without an external sound source. Human voice feature storage module, used to store the voice features emitted by a person; The control module is used to obtain the current operating status of the dehumidifier, and to obtain the dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in the current operating status; it is used to determine the external sound source characteristics of the dehumidifier based on the actual sound and the dehumidifier sound characteristics, to determine the location of the external sound source when the external sound source characteristics match the sound characteristics emitted by the person, and to control the air outlet direction of the air guide device based on the location of the external sound source.

2. The dehumidifier according to claim 1, characterized in that, The control module is used to receive the dehumidifier sound correction control signal and to control the dehumidifier to run all operating states in sequence. In each operating state, several sound detection modules detect the sound characteristics of the dehumidifier and store them in the dehumidifier sound storage module.

3. The dehumidifier according to claim 1, characterized in that, The control module is used to determine whether the position of the external sound source of the dehumidifier has changed, and when the position of the external sound source of the dehumidifier changes dynamically, it controls the air outlet direction of the air guide device to be dynamically adjusted.

4. The dehumidifier according to claim 1, characterized in that, The control module is used to control the air outlet direction of the air guide device and reduce the speed of the compressor and fan of the dehumidifier when the characteristics of the external sound source of the dehumidifier match the characteristics of human sound and the position is within a set range.

5. The dehumidifier according to claim 1, characterized in that, The control module is used to obtain the location of the device that can emit human voice characteristics. When the location of the external sound source determined by the control module is the same as the location of the device that can emit human voice characteristics, the air outlet direction of the air guide device remains unchanged.

6. The dehumidifier according to any one of claims 1-5, characterized in that, The dehumidifier includes a first sound detection module, a second sound detection module, and a third sound detection module. The third sound detection module is not on the same horizontal plane as the first or second sound detection module, and it is not on the same vertical plane as the first or second sound detection module.

7. A control method for a dehumidifier, wherein the dehumidifier is provided with an air guide device at its air outlet, characterized in that, The control method is as follows: Several sound detection modules detect the actual sound respectively; Obtain the current operating status of the dehumidifier; Obtain the dehumidifier sound characteristics corresponding to the sound detection module when the dehumidifier is in its current operating state; Based on the actual sound and the sound characteristics of the dehumidifier, the external sound source characteristics of the dehumidifier are determined. When the external sound source characteristics match the sound characteristics of a human, the location of the external sound source is determined. The air outlet direction of the air guide device is adjusted according to the location of the external sound source.

8. The control method for a dehumidifier according to claim 7, characterized in that, The control method includes the step of correcting the sound characteristics of the dehumidifier: Receive dehumidifier sound correction control signal; The dehumidifier is controlled to run all operating states in sequence. In each operating state, several sound detection modules detect the sound characteristics of the dehumidifier. When the sound characteristics of the dehumidifier change in the corresponding operating state, the sound characteristics of the dehumidifier are corrected.

9. The control method for a dehumidifier according to claim 7, characterized in that, The control method includes: when it is determined that the characteristics of the external sound source of the dehumidifier match the characteristics of human sound and the location is within a set range, controlling the air outlet direction of the air guide device and reducing the speed of the compressor and fan of the dehumidifier.

10. The control method for a dehumidifier according to claim 7, characterized in that, The control method is as follows: To locate the device capable of emitting human voice characteristics; When the location of the external sound source of the dehumidifier is determined to be the same as the location of a device that can emit human voice characteristics based on the actual sound and the sound characteristics of the dehumidifier, the air outlet direction of the air guide device is kept unchanged.

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