CN116236306A

CN116236306A - Control method and device of electric toothbrush and electric toothbrush

Info

Publication number: CN116236306A
Application number: CN202310131466.4A
Authority: CN
Inventors: 李灏; 吕少龙; 刘伟治
Original assignee: Shenzhen New Degree Technology Co Ltd
Current assignee: Shenzhen New Degree Technology Co Ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-06-09

Abstract

The application provides a control method and device of an electric toothbrush and the electric toothbrush, and relates to the technical field of electric toothbrushes, wherein the method comprises the steps of acquiring deformation signals acquired by a deformation sensor in a working state; and sending out a prompt signal under the condition that the deformation signal is detected to meet the target condition, wherein the target condition is used for indicating that the brush head connected with the driving shaft is subjected to the biting force. The technical scheme that this application provided can help the parents in time discover the child and stings the action of electric toothbrush brush head to help the parents guide children to develop good habit of brushing teeth.

Description

Control method and device of electric toothbrush and electric toothbrush

Technical Field

The present disclosure relates to the field of electric toothbrushes, and in particular, to a control method and apparatus for an electric toothbrush, and an electric toothbrush.

Background

With the rapid development of science and technology and medicine, the living standard of people is greatly improved, the prevention and health care consciousness is continuously improved, and people pay more attention to self-health care of the oral cavity. The most important self-care method for removing dental plaque and keeping the oral cavity clean is tooth brushing.

Because electric toothbrushes have advantages of good cleaning ability, strong stability, uniform vibration, etc., as compared with conventional toothbrushes, more and more people begin to use electric toothbrushes. Moreover, compared with the traditional toothbrush, the electric toothbrush is simpler and more convenient to brush teeth and is more suitable for children to master, so that a plurality of parents are provided with the electric toothbrush for the children.

In the tooth brushing process of children, bad tooth brushing behaviors possibly occur, so that the cleaning effect is affected, and long-term effects are easy to cause caries of the children, so that the method has important significance on helping parents to guide the children to develop good tooth brushing habits.

Disclosure of Invention

In view of this, the present application provides a control method and apparatus for an electric toothbrush and an electric toothbrush, which are used for helping parents to find out the behavior of a child biting the brush head of the electric toothbrush in time, so as to help parents guide the child to develop good brushing habits.

In order to achieve the above object, in a first aspect, an embodiment of the present application provides a control method of an electric toothbrush, in which a deformation sensor is disposed on a driving shaft of the electric toothbrush, the method including:

in a working state, acquiring a deformation signal acquired by the deformation sensor;

and sending out a prompt signal under the condition that the deformation signal is detected to meet a target condition, wherein the target condition is used for indicating that a brush head connected with the driving shaft is subjected to a biting force.

As an optional implementation manner of the embodiment of the present application, the method further includes:

detecting energy distribution information of the deformation signal in a frequency domain;

and determining whether the deformation signal meets a target condition according to the energy distribution information.

As an optional implementation manner of the embodiment of the present application, the determining, according to the energy distribution information, whether the deformation signal meets a target condition includes:

under the condition that a first energy peak value and a second energy peak value in a target frequency band are detected, determining that the deformation signal meets a target condition;

and in the case that the second energy peak value is not detected, determining that the deformation signal does not meet a target condition.

As an alternative implementation manner of the embodiment of the present application, the first energy peak corresponds to a vibration frequency of the electric toothbrush, the second energy peak corresponds to a frequency greater than the frequency corresponding to the first energy peak, and an energy value of the second energy peak is greater than a target value.

As an optional implementation manner of the embodiment of the present application, the detecting energy distribution information of the deformation signal in a frequency domain includes:

converting the deformation signal into a digital signal;

converting the digital signal into a frequency domain signal;

and detecting an energy peak value of the frequency domain signal.

As an optional implementation manner of the embodiment of the present application, the prompting signal includes at least one signal of the following: vibration signals, sound signals, and light signals.

In a second aspect, embodiments of the present application provide a control device for an electric toothbrush, a deformation sensor is disposed on a driving shaft of the electric toothbrush, the device includes:

the acquisition module is used for acquiring the deformation signals acquired by the deformation sensor in the working state;

the detection module is used for detecting whether the deformation signal meets a target condition;

the prompting module is used for sending out a prompting signal under the condition that the detection module detects that the deformation signal meets the target condition, and the target condition is used for indicating that the brush head connected with the driving shaft is subjected to a biting force.

As an optional implementation manner of the embodiment of the present application, the detection module is specifically configured to:

converting the deformation signal into a digital signal;

converting the digital signal into a frequency domain signal;

and detecting an energy peak value of the frequency domain signal.

In a third aspect, embodiments of the present application provide an electric toothbrush comprising: the toothbrush comprises a toothbrush main body and a brush head, wherein a controller and a driving assembly which are connected with each other are arranged in the toothbrush main body, the driving assembly is connected with a driving shaft which extends out of the toothbrush main body, the brush head is connected with the driving shaft, and a deformation sensor is arranged on the driving shaft; the controller is configured to execute the control method of the electric toothbrush according to any one of the first aspect.

As an alternative implementation of the embodiments of the present application, the deformation sensor is located within the toothbrush body.

In a fourth aspect, embodiments of the present application provide an electronic device, including: a memory and a processor, the memory for storing a computer program; the processor is configured to perform the method of the first aspect or any implementation of the first aspect when the computer program is invoked.

In a fifth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect or any implementation of the first aspect.

In a sixth aspect, embodiments of the present application provide a computer program product which, when run on a control device of an electric toothbrush, causes the control device of the electric toothbrush to perform the control method of the electric toothbrush according to any one of the first aspects above.

According to the technical scheme provided by the embodiment of the application, the electric toothbrush can acquire the deformation signals acquired by the deformation sensor in the working state; under the condition that the deformation signal is detected to meet the target condition, a prompt signal is sent out, so that parents can be helped to timely find the behavior of the children biting the electric toothbrush head, and the parents are helped to guide the children to develop good brushing habits.

Drawings

FIG. 1 is a schematic view of an electric toothbrush according to an embodiment of the present application;

FIG. 2 is a flow chart of a control method of an electric toothbrush according to an embodiment of the present disclosure;

fig. 3 is a schematic vibration diagram of a cantilever structure according to an embodiment of the present disclosure;

FIG. 4 is a schematic vibration diagram of a solid end beam structure according to an embodiment of the present disclosure;

FIG. 5 is a comparative graph of the results of a control method for a sampled electric toothbrush provided in an embodiment of the present application;

fig. 6 is a schematic structural view of a control device of an electric toothbrush according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application. The terminology used in the description of the embodiments of the application is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electric toothbrush according to an embodiment of the present application.

As shown in fig. 1, the electric toothbrush may include a toothbrush main body and a brush head, wherein the toothbrush main body is provided therein with a controller and a driving assembly connected with a driving shaft extending out of the toothbrush main body, the brush head is connected with the driving shaft, and a deformation sensor is provided on the driving shaft.

The controller can control the working state of the electric toothbrush.

The driving assembly can comprise a motor, a transmission mechanism connected with the driving shaft and the like, and can drive the driving shaft to vibrate, so that the brush head can be driven to work.

The toothbrush body may include a power key (not shown) and keys (not shown) of different functions, such as a cleaning mode, a whitening mode, a care mode, etc., in appearance, and a user may select a brushing mode suitable for himself/herself through the keys, thereby satisfying different brushing demands of the user. It can be understood that the power key and the keys with different functions can exist at the same time, namely, the switch key is pressed firstly and then the function key is pressed, so that the electric toothbrush enters different functional modes and starts to work; it is also possible that only the function key is present, and the user can directly start the operation in this mode while pressing the function key, which is not particularly limited in the embodiment of the present application. Meanwhile, the electric toothbrush may further include a prompting device such as a prompting lamp (not shown) and/or a speaker (not shown), and the controller may control the prompting device to emit a prompting signal when a user bites the toothbrush head while brushing teeth.

The deformation sensor can detect the deformation condition of the driving shaft, can be positioned on the outer side of the toothbrush main body and can also be positioned in the toothbrush main body, so that the service life is prolonged.

The brush head may be made of soft materials, such as food-grade silica gel soft brush head or Du Bangni Long Ruan brush hair, etc., and the embodiment of the application is not limited in particular.

When the electric toothbrush provided by the embodiment of the application is used for a teenager or an old person, the user can select a proper brushing mode according to the requirement of the user; when the user is a child, the user can select a proper brushing mode according to the needs of the user and send out a prompt signal under the condition that the user bites the toothbrush head, so that parents are helped to guide the child to develop a good brushing habit.

Wherein, electric toothbrush can gather deformation signal through deformation sensor, detects whether the brush head is stung based on deformation signal through the controller, when detecting that the brush head is stung, sends prompt signal. This process is described in detail below.

Fig. 2 is a schematic flow chart of a control method of an electric toothbrush according to an embodiment of the present application, and as shown in fig. 2, the control method of an electric toothbrush according to an embodiment of the present application may include the following steps:

s110, in a working state, obtaining deformation signals acquired by the deformation sensor.

Specifically, the operating state is a brushing state in which the electric toothbrush is put into after the selection function.

The power of the electric toothbrush is provided by the motor, the power of the motor is output through the driving shaft, the deformation sensor is attached to the driving shaft, the deformation condition of the driving shaft can be detected, and the deformation signal of the driving shaft is captured.

S120, detecting whether the deformation signal meets the target condition. If yes, go to step S130; if not, step S110 is performed.

Wherein the target condition is indicative of a brushhead attached to the drive shaft being subject to a bite force; that is, when the deformation signal is detected to satisfy the target condition, the brush head can be considered to be bitten, and at this time, a prompt signal can be sent to prompt the toothbrush user or the family of the toothbrush user, so that the toothbrush user can develop a good brushing habit; under the condition that the deformation signal is detected to not meet the target condition, the deformation signal acquired by the deformation sensor can be continuously acquired.

As a first alternative implementation manner, after the controller obtains the deformation signal collected by the deformation sensor, the controller may detect the amplitude of the deformation signal in the time domain, and determine whether the deformation signal meets the target condition according to the amplitude detection result.

Specifically, since the deformation sensor can capture the deformation signal of the drive shaft in real time, the amplitude of the deformation signal during normal brushing is set as a target condition, which can be determined according to the average value of the amplitudes of the deformation signal during normal brushing, or according to the maximum value of the amplitudes of the deformation signal during normal brushing, which is not particularly limited in the embodiment of the present application.

When the brush head is bitten, the stress of the driving shaft is increased, so that the amplitude of the deformation signal is increased and exceeds that of the deformation signal during normal tooth brushing. Thus, it is possible to determine whether the brush head is bitten by determining whether the magnitude of the deformation signal exceeds the target condition.

As a second alternative implementation manner, after the controller obtains the deformation signal collected by the deformation sensor, the controller may detect energy distribution information of the deformation signal on a frequency domain, and determine whether the deformation signal meets a target condition according to the energy distribution information.

Specifically, the deformation signal can be converted into a digital signal through analog-to-digital conversion, and the digital signal is converted into a frequency domain signal through algorithms such as Fourier transformation, laplace transformation, Z transformation and the like; the energy peaks of the frequency domain signal may then be detected by a spectral peak search algorithm.

The electric toothbrush can be simplified into a cantilever beam in a normal state, and is characterized in that one end is fixed, the other end is free, and the standing wave deformation condition is shown in figure 3. Wherein the abscissa indicates the beam length, the origin "0" indicates the fixed position of the drive shaft root of the electric toothbrush, and the ordinate indicates the amplitude.

Specifically, as shown in the three curves of fig. 3, the left side is the fixed end, and the right side is the free end. Wherein, "first order", "second order" and "third order" represent the swing state of the drive shaft. In the case of "first order", the frequency of the wobble is lowest, the wobble frequency of "second order" is higher than that of "first order", and "third order" is higher.

The electric toothbrush head can be simplified into a fixed end beam when being bitten, and is characterized in that both ends are fixed, and the standing wave deformation condition is shown in figure 4. The abscissa, the origin "0" and the ordinate represent the same meanings as those described in fig. 3, and will not be described here again.

Specifically, as shown in three lines in fig. 4, both left and right are fixed ends. The meaning of "first order", "second order" and "third order" is as described in fig. 3, and is not repeated here.

As can be seen by comparing fig. 3 and fig. 4, the deformation modes of the fixed end beam and the cantilever beam are significantly different in the vibration state, so that the energy distribution of the fixed end beam and the cantilever beam in the frequency domain is also greatly different. In a normal state, since the energy proportion contained in the "first-order" component frequency is often much larger than that contained in the other high-order component frequencies, the "first-order" component can be generally used as a typical characteristic value. Taking the first-order vibration as an example, if the beam length is L, the vibration wavelength of the cantilever beam is 4L, and the vibration wavelength of the solid end beam is 2L. The different vibration wavelengths result in different spectral energy distributions, liang Changxiang, and the solid end beam has a higher first order vibration frequency. Therefore, whether the deformation signal meets the target condition can be determined according to the energy peak detection result, and whether the brush head is bitten or not can be further judged.

Specifically, as shown in fig. 5 (a), the electric toothbrush itself has a natural frequency, and in a normal state, when the vibration frequency of the motor is the same as/close to the natural frequency of the electric toothbrush, resonance is caused, and at a certain frequency, the energy peak reaches a maximum value, and the energy can be used as the cleaning power of the electric toothbrush to drive the electric toothbrush to be in an operating state.

As shown in fig. 5 (b), when the brush head is bitten, the structure of the electric toothbrush is changed, and thus the natural frequency of the whole system of the electric toothbrush is also changed, and at this time, two energy peaks are reflected on the frequency spectrum, and whether the brush head is bitten can be judged by detecting whether the second energy peak is present.

The deformation signal can comprise a low-frequency signal and a high-frequency signal, and the low-frequency signal can reflect the stress deformation information of the brush head and is characterized by long acting time and low change speed; the high frequency signal may reflect status information of the brush head, such as vibration frequency, fixed status, etc. Wherein the high frequency signal is related to the natural frequency, and when the natural frequency changes, the two energy peaks are mainly represented in the frequency spectrum of the high frequency signal.

Specifically, it may be determined that the deformation signal satisfies the target condition in the case that the first energy peak and the second energy peak within the target frequency band (high frequency band) are detected; in the case where the second energy peak is not detected, it is determined that the deformation signal does not satisfy the target condition.

Wherein the first energy peak corresponds to a vibration frequency of the electric toothbrush and the second energy peak corresponds to a frequency greater than the frequency corresponding to the first energy peak.

In order to improve the accuracy of the detection result, the second energy peak may be considered to be detected when the energy value of the detected second energy peak is greater than the target value.

The target value may be one or more, and each vibration frequency may correspond to a target value.

As described above, the deformation sensor may be located outside or inside the toothbrush body, and in the case that the deformation sensor is located outside the toothbrush body, when the brush head is bitten, the deformation sensor may detect a larger deformation, and at this time, the first implementation manner may be used to detect whether the deformation signal meets the target condition; under the condition that the deformation sensor is positioned in the toothbrush main body, when the toothbrush head is bitten, the deformation detected by the deformation sensor is relatively small, and whether the deformation signal meets the target condition can be detected by adopting the second implementation mode at the moment so as to improve the accuracy of the detection result. Of course, when the deformation sensor is located outside the toothbrush body, the second implementation manner may also be used to detect whether the deformation signal meets the target condition.

It is understood that the method for detecting whether the deformation signal meets the target condition is not limited to the above two implementations, and other implementations may be adopted, for example, whether the deformation signal meets the target condition may be detected by combining the above amplitude detection result and the energy peak detection result at the same time, or whether the deformation signal meets the target condition may be detected by adopting other signal characteristics of the deformation signal.

S130, sending out a prompt signal.

Specifically, the alert signal may include at least one of the following: vibration signals, sound signals, and light signals.

Wherein when the alert signal comprises a vibration signal, the vibration frequency and/or vibration amplitude of the vibration signal may be significantly different from vibrations in various functional modes.

Those skilled in the art will appreciate that the above embodiments are exemplary and not intended to limit the present application. The order of execution of one or more of the above steps may be modified, if possible, or may be combined selectively to yield one or more other embodiments. Those skilled in the art can select any combination from the above steps according to the need, and all the steps do not depart from the spirit of the scheme of the present application.

According to the control method of the electric toothbrush, deformation signals acquired by the deformation sensor are acquired in a working state; under the condition that the deformation signal is detected to meet the target condition, a prompt signal is sent out, and the target condition is used for indicating that the brush head connected with the driving shaft is subjected to biting force, so that parents can be helped to discover the behavior of biting the electric toothbrush brush head by children in time, and the parents can be helped to guide the children to develop good brushing habits.

Based on the same inventive concept, as an implementation of the above method, the embodiment of the present application provides a control device for an electric toothbrush, where the embodiment of the device corresponds to the embodiment of the foregoing method, and for convenience of reading, details of the embodiment of the foregoing method are not repeated one by one, but it should be clear that the device in the embodiment can correspondingly implement all the details of the embodiment of the foregoing method.

Fig. 6 is a schematic structural diagram of a control device for an electric toothbrush according to an embodiment of the present application, as shown in fig. 6, a deformation sensor is disposed on a driving shaft on the electric toothbrush according to the embodiment, and the control device for an electric toothbrush includes:

the acquisition module 610 is configured to acquire a deformation signal acquired by the deformation sensor in a working state;

a detection module 620, configured to detect whether the deformation signal meets a target condition;

the prompting module 630 is configured to send out a prompting signal when the detection module 620 detects that the deformation signal meets a target condition, where the target condition is used to indicate that the brush head connected to the driving shaft is subjected to an engagement force.

As an alternative implementation manner of the embodiment of the present application, the detection module 620 is specifically configured to:

and determining whether the deformation signal meets the target condition according to the energy distribution information.

in the case where the second energy peak is not detected, it is determined that the deformation signal does not satisfy the target condition.

As an alternative implementation of the embodiment of the present application, the first energy peak corresponds to a vibration frequency of the electric toothbrush, the second energy peak corresponds to a frequency greater than the frequency corresponding to the first energy peak, and the energy value of the second energy peak is greater than the target value.

converting the deformation signal into a digital signal;

converting the digital signal into a frequency domain signal;

the energy peaks of the frequency domain signal are detected.

As an alternative implementation of the embodiment of the present application, the prompting signal includes at least one of the following signals: vibration signals, sound signals, and light signals.

The control device for the electric toothbrush provided in this embodiment may execute the above method embodiment, and its implementation principle and technical effects are similar, and will not be described herein.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment 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, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

Based on the same inventive concept, the embodiment of the application also provides electronic equipment. Fig. 7 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and as shown in fig. 7, the electronic device provided in the embodiment includes: a memory 710 and a processor 720, the memory 710 for storing a computer program; the processor 720 is configured to perform the method described in the method embodiments above when the computer program is invoked.

The electronic device provided in this embodiment may execute the above method embodiment, and its implementation principle is similar to that of the technical effect, and will not be described herein again.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method described in the above method embodiment.

The present application also provides a computer program product which, when run on a control device of an electric toothbrush, causes the control device of the electric toothbrush to execute the method described in the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted across a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, hard Disk, or magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by a computer program to instruct related hardware, the program may be stored in a computer readable storage medium, and the program may include the above-described method embodiments when executed. And the aforementioned storage medium may include: ROM or random access memory RAM, magnetic or optical disk, etc.

The naming or numbering of the steps in the present application does not mean that the steps in the method flow must be executed according to the time/logic sequence indicated by the naming or numbering, and the execution sequence of the steps in the flow that are named or numbered may be changed according to the technical purpose to be achieved, so long as the same or similar technical effects can be achieved.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other manners. For example, the apparatus/device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, 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.

In the description of the present application, unless otherwise indicated, "/" means that the associated object is an "or" relationship, e.g., a/B may represent a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.

Also, in the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of the following" or similar expressions thereof, means any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like 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 such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of an electric toothbrush, characterized in that a deformation sensor is provided on a drive shaft of the electric toothbrush, the method comprising:

2. The method according to claim 1, wherein the method further comprises:

3. The method of claim 2, wherein determining whether the deformation signal satisfies a target condition based on the energy distribution information comprises:

4. The method of claim 3, wherein the first energy peak corresponds to a vibration frequency of the electric toothbrush, the second energy peak corresponds to a frequency greater than the frequency corresponding to the first energy peak, and the second energy peak has an energy value greater than a target value.

5. The method of claim 2, wherein detecting energy distribution information of the deformation signal in a frequency domain comprises:

converting the deformation signal into a digital signal;

converting the digital signal into a frequency domain signal;

and detecting an energy peak value of the frequency domain signal.

6. The method of any one of claims 1-5, wherein the alert signal comprises at least one of the following: vibration signals, sound signals, and light signals.

7. A control device of an electric toothbrush, characterized in that a deformation sensor is provided on a drive shaft of the electric toothbrush, the control device comprising:

8. An electric toothbrush, comprising: the toothbrush comprises a toothbrush main body and a brush head, wherein a controller and a driving assembly which are connected with each other are arranged in the toothbrush main body, the driving assembly is connected with a driving shaft which extends out of the toothbrush main body, the brush head is connected with the driving shaft, and a deformation sensor is arranged on the driving shaft; the controller is configured to perform the method of any of claims 1-6.

9. The powered toothbrush as defined in claim 8, wherein the deformation sensor is located within the toothbrush body.

10. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the method according to any of claims 1-6.