An intelligent control method and system for an electric toothbrush

Abstract

The present invention relates to the technical field of data processing, and specifically relates to an intelligent control method and system for an electric toothbrush, including: obtaining a sequence of bristle pressure data for different tooth regions of a user, as well as the theoretical pressure range and the conventional vibration frequency value of the electric toothbrush; obtaining the abnormal difference value for each tooth region according to the difference between the abnormal value of the pressure behavior in the tooth region and the abnormal threshold range; obtaining the necessity of parameter adjustment for each tooth region according to the difference between the abnormal difference values of adjacent tooth regions; obtaining the adjusted vibration frequency value for each tooth region according to the necessity of parameter adjustment for the tooth region and the conventional vibration frequency value of the electric toothbrush; and performing intelligent control on the electric toothbrush based on the adjusted vibration frequency value. The present invention improves the intelligent control effect of the electric toothbrush for users in the early stage of use.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and particularly to an intelligent control method and system for an electric toothbrush. Background Art

[0002] Intelligent electric toothbrushes can record and analyze the brushing habits of each user. These data can provide personalized brushing guidance programs for users, helping users improve their brushing effects, increase brushing efficiency, and ensure the dental health of users at the same time. Currently, the intelligent control of electric toothbrushes mainly relies on training based on a large amount of historical brushing data of users to complete the intelligent control of electric toothbrushes. However, this method requires users to have a large amount of historical brushing data. When there is no historical data or the historical data is small in the early stage, users can only rely on choosing a fixed brushing mode during the brushing process for cleaning, ignoring that different tooth areas require different brushing modes, thus affecting the dental health of users. Summary of the Invention

[0003] To solve the above problems, the present invention provides an intelligent control method and system for an electric toothbrush.

[0004] An embodiment of the present invention provides an intelligent control method for an electric toothbrush, which includes the following steps:

[0005] Obtain the brush hair pressure data sequence of different tooth areas of the user, as well as the theoretical pressure range and conventional vibration frequency value of the electric toothbrush;

[0006] According to the theoretical pressure range of the electric toothbrush, divide the brush hair pressure data sequence of each tooth area into multiple pressure data segments; according to the difference between the brush hair pressure data in each pressure data segment and the theoretical pressure range of the electric toothbrush, obtain the pressure behavior abnormal value of each tooth area; obtain the abnormal threshold range; according to the difference between the pressure behavior abnormal value of the tooth area and the abnormal threshold range, obtain the abnormal difference value of each tooth area; according to the difference between the abnormal difference values of adjacent tooth areas, obtain the necessity of parameter adjustment for each tooth area; according to the necessity of parameter adjustment of the tooth area and the conventional vibration frequency value of the electric toothbrush, obtain the adjusted vibration frequency value of each tooth area;

[0007] Perform intelligent control on the electric toothbrush based on the adjusted vibration frequency value.

[0008] Preferably, the method of dividing the brush hair pressure data sequence of each tooth area into multiple pressure data segments according to the theoretical pressure range of the electric toothbrush includes the following specific method:

[0009] Taking the sampling time as the abscissa and the bristle pressure data as the ordinate, a two-dimensional rectangular coordinate system is constructed; for the bristle pressure data sequence of any tooth area, the bristle pressure data sequence of the tooth area is input into the two-dimensional rectangular coordinate system, and curve fitting is performed using the least squares method to obtain the bristle pressure data fitting curve of the tooth area; in the two-dimensional rectangular coordinate system, the intersection points between the bristle pressure data fitting curve of the tooth area and the two boundaries of the theoretical pressure range of the electric toothbrush are all recorded as division intersection points; according to the division intersection points, the bristle pressure data sequence of the tooth area is divided into several pressure data segments.

[0010] Preferably, the method for obtaining the pressure behavior outlier value of each tooth area according to the difference between the bristle pressure data in each pressure data segment and the theoretical pressure range of the electric toothbrush includes the following specific steps:

[0011] For any pressure data segment of the bristle pressure data sequence of any tooth area, according to the difference between the bristle pressure data in the pressure data segment and the theoretical pressure range of the electric toothbrush, the outlier factor of the pressure data segment is obtained;

[0012] According to the outlier factor of the pressure data segment, the outlier behavior value of the pressure data segment is obtained;

[0013] The normalized value of the mean of the outlier behavior values of all pressure data segments of the bristle pressure data sequence of the tooth area is used as the pressure behavior outlier value of the tooth area.

[0014] Preferably, the method for obtaining the outlier factor of the pressure data segment includes the following specific steps:

[0015] The mean of the bristle pressure data at all sampling times in the pressure data segment is denoted as the first mean of the pressure data segment; the absolute value of the difference between the first mean of the pressure data segment and the left boundary value of the theoretical pressure range of the electric toothbrush is denoted as the first difference; the absolute value of the difference between the first mean of the pressure data segment and the right boundary value of the theoretical pressure range of the electric toothbrush is denoted as the second difference; the minimum value of the first difference and the second difference is selected as the outlier factor of the pressure data segment.

[0016] Preferably, the method for obtaining the outlier behavior value of the pressure data segment according to the outlier factor of the pressure data segment includes the following specific steps:

[0017] If all the bristle pressure data at all sampling times in the pressure data segment are not within the theoretical pressure range of the electric toothbrush, the product of the outlier factor of the pressure data segment and the number of all sampling times in the pressure data segment is used as the outlier behavior value of the pressure data segment;

[0018] Preset constant , if the bristle pressure data at all sampling times in the pressure data segment are within the theoretical pressure range of the electric toothbrush, then is used as the abnormal behavior value of the pressure data segment.

[0019] Preferably, the method for obtaining the abnormal threshold range specifically includes:

[0020] Preset two abnormal threshold parameters , and the interval is used as the abnormal threshold range.

[0021] Preferably, the method for obtaining the abnormal difference value of each tooth area according to the difference between the abnormal behavior value of the pressure behavior in the tooth area and the abnormal threshold range specifically includes:

[0022] For any tooth area, if the abnormal behavior value of the pressure behavior in the tooth area is within the abnormal threshold range, the absolute value of the difference between the abnormal behavior value of the pressure behavior in the tooth area and the left boundary value of the abnormal threshold range is denoted as the third difference; the absolute value of the difference between the abnormal behavior value of the pressure behavior in the tooth area and the right boundary value of the abnormal threshold range is denoted as the fourth difference; the minimum value among the third difference and the fourth difference is selected as the abnormal difference value of the tooth area;

[0023] If the abnormal behavior value of the pressure behavior in the tooth area is not within the abnormal threshold range, then is used as the abnormal difference value of the tooth area.

[0024] Preferably, the method for obtaining the necessity of parameter adjustment for each tooth area according to the difference between the abnormal difference values of adjacent tooth areas specifically includes:

[0025] Denote the absolute value of the difference between the abnormal difference value of the th tooth area and the abnormal difference value of the th tooth area as the first absolute difference value; the ratio of the abnormal difference value of the th tooth area to the first absolute difference value is used as the necessity of parameter adjustment for the th tooth area.

[0026] Preferably, the method for obtaining the adjusted vibration frequency value of each tooth area according to the necessity of parameter adjustment of the tooth area and the conventional vibration frequency value of the electric toothbrush specifically includes:

[0027] Denote the product of the necessity of parameter adjustment of the th tooth area and the conventional vibration frequency value of the electric toothbrush as the adjustment frequency factor of the th tooth area;

[0028] If the pressure behavior outlier of the th tooth region is less than the minimum value in the abnormal threshold interval, the difference between the conventional vibration frequency value of the electric toothbrush and the adjustment frequency factor of the th tooth region is used as the adjusted vibration frequency value of the th tooth region; if the pressure behavior outlier of the th tooth region is greater than the maximum value in the abnormal threshold interval, the sum of the conventional vibration frequency value of the electric toothbrush and the adjustment frequency factor of the th tooth region is used as the adjusted vibration frequency value of the th tooth region.

[0029] The present invention also provides an intelligent control system for an electric toothbrush, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of any one of the above-mentioned intelligent control methods for an electric toothbrush are implemented.

[0030] The beneficial effects of the technical solution of the present invention are as follows: According to the difference between the pressure behavior outlier of the tooth region and the abnormal threshold interval, the abnormal difference value of each tooth region is obtained; according to the difference between the abnormal difference values of adjacent tooth regions, the necessity of parameter adjustment for each tooth region is obtained; according to the necessity of parameter adjustment of the tooth region and the conventional vibration frequency value of the electric toothbrush, the adjusted vibration frequency value of each tooth region is obtained; the electric toothbrush is intelligently controlled based on the adjusted vibration frequency value; thus, only by analyzing a small amount of user brushing data, different cleaning methods for different tooth regions of the user are given based on the adjusted vibration frequency value, thereby improving the intelligent control effect of the electric toothbrush for the user in the early stage of use. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a flowchart of the steps of an intelligent control method for an electric toothbrush of the present invention;

[0033] Figure 2 It is a flowchart of the characteristic relationship of an intelligent control method for an electric toothbrush of the present invention. Detailed Embodiments

[0034] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following specifically describes, in conjunction with the accompanying drawings and preferred embodiments, a method and system for intelligent control of an electric toothbrush according to the present invention, including its specific implementation manner, structure, features and effects. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs.

[0036] The following specifically describes the specific solutions of a method and system for intelligent control of an electric toothbrush provided by the present invention with reference to the accompanying drawings.

[0037] Please refer to Figure 1 , which shows a flowchart of the steps of a method for intelligent control of an electric toothbrush provided by an embodiment of the present invention. The method includes the following steps:

[0038] Step S001: Obtain the brush hair pressure data sequence of different tooth regions of the user, as well as the theoretical pressure range and the conventional vibration frequency value of the electric toothbrush.

[0039] Specifically, first, it is necessary to collect the brush hair pressure data sequence of different tooth regions of the user, as well as the theoretical pressure range and the conventional vibration frequency value of the electric toothbrush. The specific process is as follows:

[0040] The user's teeth are divided into four tooth regions: upper left, upper right, lower left, and lower right. A micro pressure sensor is installed on the brush head of the electric toothbrush to record the brush hair pressure data of each sampling moment for each tooth region during the brushing process of the user. The sampling is carried out every 1 second. The sequence composed of the brush hair pressure data of all moments in each tooth region is used as the brush hair pressure data sequence of each tooth region.

[0041] It should be noted that since the normal and healthy gums can tolerate a pressure range of approximately 100 - 200, this pressure range can ensure that the gums are not damaged and avoid gum recession caused by excessive friction. The hardness of the tooth surface is relatively high, but excessive pressure may still cause damage to the tooth enamel, especially in areas where the tooth surface is irregular. Generally, the tooth enamel will not be damaged under a pressure of less than 300.

[0042] Preferably, two theoretical pressure parameters are preset , where this embodiment takes as an example for description. This embodiment does not make specific limitations, where It depends on the specific implementation situation; the interval is used as the theoretical pressure interval of the electric toothbrush;

[0043] Obtain the conventional vibration frequency value of the electric toothbrush by referring to the product manual of the electric toothbrush.

[0044] So far, through the above method, the brush hair pressure data sequence of different tooth regions of the user, as well as the theoretical pressure interval and the conventional vibration frequency value of the electric toothbrush are obtained.

[0045] Step S002: According to the theoretical pressure interval of the electric toothbrush, divide the brush hair pressure data sequence of each tooth region into multiple pressure data segments; according to the difference between the brush hair pressure data in each pressure data segment and the theoretical pressure interval of the electric toothbrush, obtain the pressure behavior abnormal value of each tooth region; obtain the abnormal threshold interval; according to the difference between the pressure behavior abnormal value of the tooth region and the abnormal threshold interval, obtain the abnormal difference value of each tooth region; according to the difference between the abnormal difference values of adjacent tooth regions, obtain the necessity of parameter adjustment for each tooth region; according to the necessity of parameter adjustment of the tooth region and the conventional vibration frequency value of the electric toothbrush, obtain the adjusted vibration frequency value of each tooth region.

[0046] It should be noted that the electric toothbrush senses the pressure exerted by the brush hair through a pressure sensor. If the pressure is too high, it may damage the gums and tooth enamel; if the pressure is too low, it may not effectively clean the tooth surface; dividing the pressure data segments according to the theoretical pressure interval of the electric toothbrush can help determine the ideal pressure range required for each tooth region, thereby avoiding excessive or insufficient brushing force.

[0047] Preferably, in some implementation manners of the embodiment of the present invention, the specific method for dividing the brush hair pressure data sequence of each tooth region into multiple pressure data segments according to the theoretical pressure interval of the electric toothbrush is:

[0048] Construct a two-dimensional rectangular coordinate system with the sampling time as the abscissa and the brush hair pressure data as the ordinate; for the brush hair pressure data sequence of any tooth region, input the brush hair pressure data sequence of the tooth region into the two-dimensional rectangular coordinate system, and use the least square method for curve fitting to obtain the brush hair pressure data fitting curve of the tooth region; in the two-dimensional rectangular coordinate system, mark the intersection points between the brush hair pressure data fitting curve of the tooth region and the two boundaries of the theoretical pressure interval of the electric toothbrush as division intersection points; divide the brush hair pressure data sequence of the tooth region into several pressure data segments according to the division intersection points.

[0049] It should be noted that during the user's brushing process, the toothbrush head moves up and down to clean the tooth area and ensure the brushing coverage rate. Therefore, the pressure parameter is not constant, but shows periodic movement. As a result, the pressure value also shows an approximately periodic change during the normal brushing process. Therefore, it is determined whether it is within the theoretical pressure range through the pressure change in time series. If it is, it indicates that the brushing pressure parameter is normal; on the contrary, if the difference between the pressure value and the theoretical pressure range is large during the user's brushing process, it indicates that the user's brushing behavior is abnormal, and thus the abnormal value of the pressure behavior in the tooth area is obtained.

[0050] Preferably, in some implementation manners of the embodiments of the present invention, the specific method for obtaining the abnormal behavior value of each pressure data segment according to the difference between the bristle pressure data in each pressure data segment and the theoretical pressure range of the electric toothbrush is as follows:

[0051] For any pressure data segment in the bristle pressure data sequence of the tooth area, the mean value of the bristle pressure data at all sampling times in the pressure data segment is denoted as the first mean value of the pressure data segment; the absolute value of the difference between the first mean value of the pressure data segment and the left boundary value of the theoretical pressure range of the electric toothbrush is denoted as the first difference; the absolute value of the difference between the first mean value of the pressure data segment and the right boundary value of the theoretical pressure range of the electric toothbrush is denoted as the second difference; the minimum value among the first difference and the second difference is selected as the abnormal factor of the pressure data segment;

[0052] Preset a constant , where in this embodiment, is taken as an example for description, and this embodiment does not make specific limitations, where is determined according to the specific implementation situation;

[0053] If all the bristle pressure data at all sampling times in the pressure data segment are not within the theoretical pressure range of the electric toothbrush, the product of the abnormal factor of the pressure data segment and the number of all sampling times in the pressure data segment is used as the abnormal behavior value of the pressure data segment; if all the bristle pressure data at all sampling times in the pressure data segment are within the theoretical pressure range of the electric toothbrush, then is used as the abnormal behavior value of the pressure data segment.

[0054] It should be noted that if all the bristle pressure data at all sampling times in the pressure data segment are not within the theoretical pressure range of the electric toothbrush, then the pressure data segment belongs to an abnormal data segment. Therefore, the longer the duration of the pressure data segment, the larger the corresponding abnormal behavior value; although there is a difference from the theoretical pressure value range, if the difference is small, the corresponding abnormal behavior value is small.

[0055] Preferably, in some implementation manners of the embodiments of the present invention, the specific method for obtaining the pressure behavior anomaly value of each tooth area according to the anomaly behavior value of the pressure data segment is as follows:

[0056] For any tooth area, the normalized value of the mean of the anomaly behavior values of all pressure data segments of the bristle pressure data sequence of the tooth area is used as the pressure behavior anomaly value of the tooth area;

[0057] The specific formula is:

[0058]

[0059] In the formula, represents the pressure behavior anomaly value of the tooth area; represents the number of all pressure data segments of the bristle pressure data sequence of the tooth area; represents the th pressure data segment of the bristle pressure data sequence of the tooth area; represents the linear normalization function.

[0060] It should be noted that if the pressure behavior anomaly value of the tooth area is greater than the anomaly threshold interval, it indicates that there is a significant anomaly in the tooth cleaning of the tooth area, and the user applies a relatively large pressure value. At this time, the user should reduce the pressure applied to the electric toothbrush; if the pressure behavior anomaly value of the tooth area is within the anomaly threshold interval, it indicates that the tooth cleaning of the tooth area is normal, and the user has a good grasp of the strength; if the pressure behavior anomaly value of the tooth area is less than the anomaly threshold interval, it indicates that there is a significant anomaly in the tooth cleaning of the tooth area, and the user applies a relatively small pressure value. At this time, the user should increase the pressure applied to the electric toothbrush.

[0061] Preferably, in some implementation manners of the embodiments of the present invention, the specific method for presetting an anomaly threshold interval is as follows:

[0062] Preset two anomaly threshold parameters , where in this embodiment, is taken as an example for description, and this embodiment does not make specific limitations, where is determined according to the specific implementation situation; the interval is used as the anomaly threshold interval.

[0063] It should be noted that if the pressure behavior anomaly value of the tooth area is within the anomaly threshold interval, it means that the vibration frequency of the electric toothbrush required by the user is incorrect; then the greater the possibility of adjusting the vibration frequency parameter of the electric toothbrush, and the magnitude of the adjustment needs to be based on the difference between the pressure behavior anomaly value of the tooth area and the anomaly threshold interval, so as to obtain the anomaly difference value of each tooth area.

[0064] Preferably, in some implementation manners of the embodiments of the present invention, the specific method for obtaining the abnormal difference value of each tooth area according to the difference between the abnormal value of the pressure behavior in the tooth area and the abnormal threshold interval is as follows:

[0065] For any tooth area, if the abnormal value of the pressure behavior in the tooth area is between the abnormal threshold intervals, the absolute value of the difference between the abnormal value of the pressure behavior in the tooth area and the left boundary value of the abnormal threshold interval is denoted as the third difference; the absolute value of the difference between the abnormal value of the pressure behavior in the tooth area and the right boundary value of the abnormal threshold interval is denoted as the fourth difference; the minimum value of the third difference and the fourth difference is selected as the abnormal difference value of the tooth area; if the abnormal value of the pressure behavior in the tooth area is not between the abnormal threshold intervals, is used as the abnormal difference value of the tooth area.

[0066] It should be noted that in the actual process, there are only a small number of brushing modes for electric toothbrushes. In the face of different people, factors such as age and gender will affect the pressure applied by users to their teeth through electric toothbrushes. The judgment of a single abnormal threshold interval will lead to incorrect feedback on the brushing status of users, that is, the obtained theoretical pressure range is not representative for individual users; therefore, it is also necessary to obtain the necessity of parameter adjustment for each tooth area according to the difference between the abnormal difference values of adjacent tooth areas of the user, and then adjust the vibration frequency parameters of the user's electric toothbrush.

[0067] Preferably, in some implementation manners of the embodiments of the present invention, the specific method for obtaining the necessity of parameter adjustment for each tooth area according to the difference between the abnormal difference values of adjacent tooth areas is as follows:

[0068] Denote the absolute value of the difference between the abnormal difference value of the th tooth area and the abnormal difference value of the th tooth area as the absolute value of the first difference; take the ratio of the abnormal difference value of the th tooth area to the absolute value of the first difference as the necessity of parameter adjustment for the th tooth area;

[0069] The specific formula is:

[0070]

[0071] In the formula, represents the necessity of parameter adjustment for the th tooth area; represents the abnormal difference value of the th tooth area; represents the Abnormal difference value of a tooth area; Represents a preset hyperparameter, which is preset in this implementation to prevent the denominator from being zero; Represents taking the absolute value.

[0072] It should be noted that represents the difference between the abnormal difference values of adjacent tooth areas of the user. If the difference is larger, it indicates that the brushing pressure after the user's self - adjustment has been significantly improved, which means the possibility of the user's brushing error is greater, and thus the possibility of the vibration parameters of the electric toothbrush being incorrect is smaller, and further the necessity for adjustment is smaller.

[0073] Preferably, in some implementation manners of the embodiment of the present invention, the specific method for obtaining the adjusted vibration frequency value of each tooth area according to the necessity of parameter adjustment of the tooth area and the conventional vibration frequency value of the electric toothbrush is as follows:

[0074] Multiply the necessity of parameter adjustment of the th tooth area by the conventional vibration frequency value of the electric toothbrush, and use the product as the adjustment frequency factor of the th tooth area;

[0075] If the pressure behavior abnormal value of the th tooth area is less than the minimum value in the abnormal threshold interval, use the difference between the conventional vibration frequency value of the electric toothbrush and the adjustment frequency factor of the th tooth area as the adjusted vibration frequency value of the th tooth area; if the pressure behavior abnormal value of the th tooth area is greater than the maximum value in the abnormal threshold interval, use the sum of the conventional vibration frequency value of the electric toothbrush and the adjustment frequency factor of the th tooth area as the adjusted vibration frequency value of the th tooth area.

[0076] It should be noted that if the pressure behavior abnormal value of the tooth area is on the left side of the abnormal threshold interval, it indicates that the pressure applied by the user to the teeth is too large. At this time, the vibration frequency of the toothbrush should be reduced to prevent damage to the teeth and gums. At this time, the greater the necessity of adjustment of the corresponding parameter, and due to the obvious excessive pressure, the vibration frequency should be reduced; if the pressure behavior abnormal value of the th tooth area is on the right side of the abnormal threshold interval, it indicates that the pressure applied by the user to the teeth is too small. At this time, the vibration frequency of the toothbrush should be increased.

[0077] Thus, the adjusted vibration frequency value of each tooth area of the user is obtained through the above - mentioned method.

[0078] Step S003: Intelligently control the electric toothbrush based on the adjusted vibration frequency value.

[0079] Specifically, the user manually inputs the adjusted vibration frequency value for each tooth area through a mobile application, and the intelligent control system of the electric toothbrush dynamically adjusts the vibration frequency value. For each tooth area, the electric toothbrush automatically switches to a suitable cleaning mode.

[0080] Please refer to Figure 2 , which shows a characteristic relationship flowchart of an intelligent control method for an electric toothbrush;

[0081] Through the above steps, an intelligent control of an electric toothbrush is completed.

[0082] The present invention also proposes an intelligent control system for an electric toothbrush, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the intelligent control method for an electric toothbrush described in steps S001 to S003.

[0083] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent control method for an electric toothbrush, characterized in that: The method comprises the following steps: Obtain the bristle pressure data sequence of different tooth areas of the user, as well as the theoretical pressure range and conventional vibration frequency value of the electric toothbrush; According to the theoretical pressure interval of the electric toothbrush, the bristle pressure data sequence of each tooth area is divided into multiple pressure data segments; according to the difference between the bristle pressure data in each pressure data segment and the theoretical pressure interval of the electric toothbrush, the pressure behavior abnormal value of each tooth area is obtained; the abnormal threshold interval is obtained; according to the difference between the pressure behavior abnormal value of the tooth area and the abnormal threshold interval, the abnormal difference value of each tooth area is obtained; according to the difference between the abnormal difference values ​​of adjacent tooth areas, the necessity of parameter adjustment of each tooth area is obtained; according to the necessity of parameter adjustment of the tooth area and the conventional vibration frequency value of the electric toothbrush, the adjusted vibration frequency value of each tooth area is obtained; Intelligently control the electric toothbrush based on the adjusted vibration frequency value; Collect the bristle pressure data sequence of different tooth areas of the user. The specific process is as follows: The user's teeth are divided into four dental areas: upper left, upper right, lower left and lower right. A miniature pressure sensor is installed on the brush head of the electric toothbrush to record the user's brushing of each dental area at a sampling moment every 1 second, and obtain the bristle pressure data of each dental area at each sampling moment; the sequence composed of the bristle pressure data of each dental area at all moments is used as the bristle pressure data sequence of each dental area.

2. The intelligent control method for an electric toothbrush according to claim 1, characterized in that: The method of dividing the bristle pressure data sequence of each tooth area into a plurality of pressure data segments according to the theoretical pressure interval of the electric toothbrush includes: A two-dimensional rectangular coordinate system is constructed with the sampling time as the horizontal coordinate and the bristle pressure data as the vertical coordinate; for a bristle pressure data sequence of any tooth area, the bristle pressure data sequence of the tooth area is input into the two-dimensional rectangular coordinate system, and a curve fitting is performed using the least square method to obtain a fitting curve of the bristle pressure data of the tooth area; in the two-dimensional rectangular coordinate system, the intersection points between the fitting curve of the bristle pressure data of the tooth area and the two boundaries of the theoretical pressure range of the electric toothbrush are recorded as dividing intersection points; The bristle pressure data sequence of the tooth area is divided into a plurality of pressure data segments according to the division intersection points.

3. The intelligent control method for an electric toothbrush according to claim 1, characterized in that: The specific method of obtaining the abnormal pressure behavior value of each tooth area according to the difference between the bristle pressure data in each pressure data segment and the theoretical pressure interval of the electric toothbrush is as follows: For any pressure data segment of the bristle pressure data sequence of any tooth region, obtaining an abnormal factor of the pressure data segment according to the difference between the bristle pressure data in the pressure data segment and the theoretical pressure interval of the electric toothbrush; According to the abnormal factor of the pressure data segment, an abnormal behavior value of the pressure data segment is obtained; The normalized value of the mean of the abnormal behavior values ​​of all the pressure data segments of the bristle pressure data sequence of the tooth region is used as the pressure behavior abnormal value of the tooth region.

4. The intelligent control method for an electric toothbrush according to claim 3, characterized in that: The specific method of obtaining the abnormal factor of the pressure data segment includes: The mean value of the bristle pressure data at all sampling moments in the pressure data segment is recorded as the first mean value of the pressure data segment; the absolute value of the difference between the first mean value of the pressure data segment and the left boundary value of the theoretical pressure interval of the electric toothbrush is recorded as the first difference; The absolute value of the difference between the first mean value of the pressure data segment and the right boundary value of the theoretical pressure range of the electric toothbrush is recorded as the second difference; the minimum value between the first difference and the second difference is selected as the abnormal factor of the pressure data segment.

5. The intelligent control method for an electric toothbrush according to claim 3, characterized in that: The specific method of obtaining the abnormal behavior value of the pressure data segment according to the abnormal factor of the pressure data segment includes: If the bristle pressure data at all sampling moments in the pressure data segment are not within the theoretical pressure interval of the electric toothbrush, the product of the abnormal factor of the pressure data segment and the number of all sampling moments in the pressure data segment is used as the abnormal behavior value of the pressure data segment; Preset Constants If the bristle pressure data at all sampling moments in the pressure data segment are within the theoretical pressure range of the electric toothbrush, As the abnormal behavior value of the pressure data segment.

6. The intelligent control method for an electric toothbrush according to claim 1, characterized in that: The specific method of obtaining the abnormal threshold interval includes: Preset two abnormal threshold parameters , the interval as the abnormal threshold interval.

7. The intelligent control method for an electric toothbrush according to claim 5, characterized in that: The specific method of obtaining the abnormal difference value of each tooth region according to the difference between the abnormal value of the pressure behavior of the tooth region and the abnormal threshold interval includes: For any tooth region, if the pressure behavior abnormal value of the tooth region is within the abnormal threshold interval, the absolute value of the difference between the pressure behavior abnormal value of the tooth region and the left boundary value of the abnormal threshold interval is recorded as the third difference value; The absolute value of the difference between the abnormal value of the pressure behavior in the tooth area and the right boundary value of the abnormal threshold interval is recorded as the fourth difference value; selecting a minimum value between the third difference value and the fourth difference value as the abnormal difference value of the tooth region; If the pressure behavior abnormal value of the tooth area is not within the abnormal threshold range, as the abnormal difference value of the tooth area.

8. The intelligent control method for an electric toothbrush according to claim 1, characterized in that: The method of obtaining the necessity of adjusting the parameters of each tooth region according to the difference between the abnormal difference values ​​of adjacent tooth regions includes: The first The abnormal difference value of the tooth area is The absolute value of the difference between the abnormal difference values ​​of the tooth areas is recorded as the first absolute value of the difference; The ratio between the abnormal difference value of the first tooth area and the absolute value of the first difference is taken as the Necessity of parameter adjustment for each tooth area.

9. The intelligent control method for an electric toothbrush according to claim 1, characterized in that: The method of obtaining the adjusted vibration frequency value of each tooth area according to the necessity of adjusting the parameters of the tooth area and the conventional vibration frequency value of the electric toothbrush includes: The first The product of the parameter adjustment necessity of the tooth area and the normal vibration frequency value of the electric toothbrush is taken as the Adjustment frequency factor for each tooth area; Jordi The pressure behavior abnormal value of the tooth area is less than the minimum value in the abnormal threshold interval, and the normal vibration frequency value of the electric toothbrush is compared with the first The difference between the adjustment frequency factors of the tooth areas is taken as the Adjusted vibration frequency value for each tooth area; Jordi The abnormal pressure behavior value of the tooth area is greater than the maximum value in the abnormal threshold interval, and the normal vibration frequency value of the electric toothbrush is compared with the The sum of the adjustment frequency factors of the tooth regions is taken as the Adjusted vibration frequency value for each tooth area.

10. An intelligent control system for an electric toothbrush, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the steps of the electric toothbrush intelligent control method as described in any one of claims 1-9 are implemented.

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