Overpressure detection method and device and electric toothbrush

Abstract

The invention relates to the technical field of electric toothbrushes, and discloses an overpressure detection method and device and an electric toothbrush, and the method comprises the steps: obtaining a wake-up pressure value of a pressure sensor at a wake-up moment when it is determined that the electric toothbrush enters a wake-up mode; when it is determined that the electric toothbrush enters the tooth brushing function mode, the starting pressure value of the pressure sensor at the tooth brushing function starting moment is obtained; determining a current pressure reference value based on the wake-up pressure value, the start-up pressure value and a previous pressure reference value corresponding to the previous tooth brushing; and acquiring a real-time pressure value by using a pressure sensor, and determining an overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and a preset pressure threshold value. According to the scheme, the problems that in the using process of the pressure sensor, the pressure reference value of the pressure sensor drifts along with changes of time or environmental conditions, the target pressure value is inaccurate due to the fact that the pressure reference value is inaccurate, and tooth protection is not facilitated are solved.

Description

Technical Field

[0001] The present application relates to the technical field of electric toothbrushes, for example, to an overvoltage detection method, device and electric toothbrush. Background Art

[0002] Studies have shown that brushing your teeth too hard can cause damage to your teeth.

[0003] In the related art, in order to protect teeth, electric toothbrushes usually use pressure sensors to collect the current pressure value of the user on the toothbrush when brushing teeth in real time, and subtract the pressure reference value from the current pressure value to obtain the target pressure value. If the target pressure value is greater than the pressure threshold, overpressure is determined and the user is prompted to reduce the brushing force. Among them, the pressure reference value is the pressure value output by the pressure sensor when the toothbrush is not subjected to external pressure.

[0004] However, since the pressure reference value of the pressure sensor may drift with time or changes in environmental conditions during use, an inaccurate pressure reference value may cause an inaccurate target pressure value, which is not conducive to protecting teeth. Summary of the invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present application provide an overpressure detection method, device and electric toothbrush to solve the problem that during use, the pressure reference value of the pressure sensor will drift with time or changes in environmental conditions. Inaccurate pressure reference value will cause inaccurate target pressure value, which is not conducive to protecting teeth.

[0007] On the one hand, an embodiment of the present application provides an overpressure detection method, which is applied to an electric toothbrush, wherein the electric toothbrush includes a pressure sensor and a brush head; the pressure sensor is used to collect the external force exerted on the brush head; the method includes:

[0008] When it is determined that the electric toothbrush enters the wake-up mode, obtaining the wake-up pressure value of the pressure sensor at the wake-up time;

[0009] When it is determined that the electric toothbrush enters the teeth brushing function mode, obtaining the starting pressure value of the pressure sensor at the time when the teeth brushing function is started;

[0010] Determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and a previous pressure reference value corresponding to the last time the teeth were brushed;

[0011] The pressure sensor is used to collect a real-time pressure value, and an overpressure detection result is determined based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and a preset pressure threshold.

[0012] On the other hand, an embodiment of the present application provides an overpressure detection device, which is applied to an electric toothbrush, wherein the electric toothbrush comprises a pressure sensor and a brush head; the pressure sensor is used to collect the external force exerted on the brush head; the device comprises:

[0013] an acquisition unit, configured to acquire a wake-up pressure value of the pressure sensor at the wake-up time when it is determined that the electric toothbrush enters the wake-up mode;

[0014] The acquisition unit is further used to acquire the start-up pressure value of the pressure sensor at the start-up time of the toothbrushing function when it is determined that the electric toothbrush enters the toothbrushing function mode;

[0015] a determination unit, configured to determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and a previous pressure reference value corresponding to the last brushing;

[0016] The detection unit is used to collect a real-time pressure value using the pressure sensor, and determine an overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and a preset pressure threshold.

[0017] On the other hand, an embodiment of the present application provides an electric toothbrush, comprising: a motor, a pressure sensor, a brush head and a control unit; the brush head is fixedly connected to the rotor of the motor through a connecting shaft; the pressure sensor is arranged on the connecting shaft;

[0018] The pressure sensor is used to collect the external force applied to the brush head;

[0019] The control unit is used to obtain the wake-up pressure value of the pressure sensor at the wake-up time when determining that the electric toothbrush enters the wake-up mode;

[0020] When it is determined that the electric toothbrush enters the teeth brushing function mode, obtaining the starting pressure value of the pressure sensor at the time when the teeth brushing function is started;

[0021] Determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and a previous pressure reference value corresponding to the last time the teeth were brushed;

[0022] The pressure sensor is used to collect a real-time pressure value, and an overpressure detection result is determined based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and a preset pressure threshold.

[0023] On the other hand, an embodiment of the present application provides an electronic device, including a processor and a memory storing program instructions, wherein the processor is configured to execute any of the above-mentioned overvoltage detection methods when running the program instructions.

[0024] On the other hand, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, any of the above-mentioned overvoltage detection methods is implemented.

[0025] The various technical solutions provided in the embodiments of the present application determine the current pressure reference value through the wake-up pressure value of the electric toothbrush at the time of wake-up, the start-up pressure value when the brushing function is started, and the previous pressure reference value of the last brushing, and determine the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold, correct the current pressure reference value, solve the problem of tooth damage caused by inaccurate pressure reference value, and protect tooth health.

[0026] Furthermore, considering that new users are usually more sensitive to brushing force and cannot withstand greater brushing force, new users usually put the electric toothbrush into the mouth after the brushing function is activated. Furthermore, the starting pressure value of new users is usually equal to the wake-up pressure value. Old users can usually withstand greater brushing force, so there is a high probability that old users will put the toothbrush into the mouth before activating the brushing function. When the teeth touch the bristle side of the toothbrush, an external force will be applied to the toothbrush. Therefore, there is a high probability that the starting pressure value of old users is greater than the wake-up pressure value.

[0027] When the brushing function is activated, if the user brushes too hard, it is very likely that the calculated current pressure reference value will be too large, which will cause the electric toothbrush to frequently prompt over-pressure, reducing the brushing experience.

[0028] Therefore, based on the above considerations, this solution determines the current pressure reference value based on the wake-up pressure value, the startup pressure value, and the previous pressure reference value. And determine the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and the preset pressure threshold. Set different pressure reference values ​​for new and old users, appropriately increase the pressure reference value for old users, and appropriately increase the pressure threshold for old users to meet the different needs of new and old users and enhance the user's brushing experience. The current pressure reference value can also be adjusted to prevent the calculated current pressure reference value from being too large, causing the electric toothbrush to frequently prompt overpressure.

[0029] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0031] Figure 1 is a schematic diagram of an electric toothbrush provided in Example 1 of the present application;

[0032] Figure 2 is a flow chart of an overvoltage detection method provided in Example 1 of the present application;

[0033] Figure 3 is a flow chart of another overvoltage detection method provided in Embodiment 2 of the present application;

[0034] Figure 4 is a structural schematic diagram of an overvoltage detection device provided in Embodiment 3 of the present application;

[0035] Figure 5 It is a structural schematic diagram of an electronic device that implements the overvoltage detection method of an embodiment of the present application. DETAILED DESCRIPTION

[0036] refer to Figure 1 In order to protect teeth, the present invention provides an electric toothbrush, which is provided with a control unit, a motor, a pressure sensor and a brush head; wherein the pressure sensor may be an electronic pressure sensor; the brush head is fixedly connected to the rotor of the motor through a connecting shaft; the pressure sensor is arranged on the connecting shaft. For example, a groove may be opened on the connecting shaft, and the pressure sensor is arranged in the groove.

[0037] In the related art, the control unit usually uses a pressure sensor to collect the real-time pressure value of the user on the toothbrush when brushing teeth, and subtracts the pressure reference value from the real-time pressure value to obtain the target pressure value. If the target pressure value is greater than the pressure threshold, overpressure is determined and the user is prompted to reduce the brushing force. Among them, the pressure reference value is the pressure value output by the pressure sensor when the toothbrush is not subjected to external pressure.

[0038] However, since the pressure reference value of the pressure sensor will drift with time or changes in environmental conditions during use, an inaccurate pressure reference value will cause an inaccurate target pressure value, which is not conducive to protecting teeth.

[0039] In order to solve the above technical problems, in the solution provided in the present application, the current pressure reference value is determined by the wake-up pressure value of the electric toothbrush at the time of wake-up, the start-up pressure value when the brushing function is started, and the previous pressure reference value of the last brushing, and the overpressure detection result is determined based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold, and the current pressure reference value is corrected, which solves the tooth damage caused by inaccurate pressure reference value and protects tooth health.

[0040] Furthermore, considering that new users are usually more sensitive to brushing force and cannot withstand greater brushing force, new users usually put the electric toothbrush into their mouth after the brushing function is activated. Furthermore, the starting pressure value of new users is usually equal to the wake-up pressure value. Old users can usually withstand greater brushing force, so there is a high probability that old users will put the toothbrush into their mouth before activating the brushing function. When the teeth touch the toothbrush, an external force will be applied to the toothbrush. Therefore, there is a high probability that the starting pressure value of old users is greater than the wake-up pressure value.

[0041] When the brushing function is activated, if the user brushes too hard, it is very likely that the calculated current pressure reference value will be too large, which will cause the electric toothbrush to frequently prompt over-pressure, reducing the brushing experience.

[0042] Therefore, based on the above considerations, this solution determines the current pressure reference value based on the wake-up pressure value, the startup pressure value, and the previous pressure reference value. And determine the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and the preset pressure threshold. Set different pressure reference values ​​for new and old users, appropriately increase the pressure reference value for old users, and appropriately increase the pressure threshold for old users to meet the different needs of new and old users for brushing intensity and enhance the user's brushing experience. The current pressure reference value can also be adjusted to prevent the calculated current pressure reference value from being too large, causing the electric toothbrush to frequently prompt overpressure.

[0043] The terms "target", "first", "second", etc. in the description, claims, and drawings of the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present application described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0044] Unless otherwise indicated, the term "plurality" means two or more. The term "plurality" means two or more.

[0045] In the embodiment of the present application, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0046] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0047] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0048] In order to be able to understand the features and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0049] Embodiment 1

[0050] Figure 2 This is a flow chart of an overvoltage detection method provided in the first embodiment of the present application. This embodiment is applicable to the overvoltage detection scenario of an electric toothbrush. The method can be performed by an overvoltage detection device, which can be implemented by software and / or hardware and specifically configured in an electronic device. The electric toothbrush is provided with a pressure sensor and a brush head; the pressure sensor is used to collect the external force on the brush head.

[0051] like Figure 2 As shown, the method includes:

[0052] Step 201: When it is determined that the electric toothbrush enters the wake-up mode, the wake-up pressure value of the pressure sensor at the wake-up time is obtained.

[0053] In practice, the wake-up mode of the electric toothbrush can be realized through built-in sensors. Common sensors include accelerometers, gyroscopes, etc. When the electric toothbrush is stationary, the sensor is in a low-power sleep mode. When the user picks up the electric toothbrush and lifts it, the sensor detects changes in the motion state of the toothbrush, such as changes in acceleration, angle and other parameters, thereby triggering the wake-up mechanism, so that the electric toothbrush enters the working state or displays relevant information.

[0054] Considering that users usually do not grab the brush head when lifting the toothbrush to wake it up, the brush head is most likely not under pressure. The wake-up pressure value collected at the wake-up moment is usually equal to the actual pressure reference value.

[0055] In practice, there are cases where the electric toothbrush skips the wake-up mode and directly enters the brushing function mode, for example, the user does not lift the electric toothbrush and directly starts the brushing function. In this case, the previous pressure reference value can be used as the current pressure reference value. Furthermore, the difference between the real-time pressure value and the current pressure reference value is determined as the target pressure value. If the target pressure value is greater than the preset pressure threshold, overpressure is determined; if the target pressure value is less than or equal to the preset pressure threshold, it is determined that there is no overpressure.

[0056] Step 202: When it is determined that the electric toothbrush enters the teeth brushing function mode, the starting pressure value of the pressure sensor at the time of starting the teeth brushing function is obtained.

[0057] Considering that new users are usually sensitive to brushing force and cannot bear strong brushing force, new users usually put the electric toothbrush into the mouth after the brushing function is activated. Furthermore, the activation pressure value of new users is usually equal to the awakening pressure value.

[0058] Old users can usually withstand greater brushing force, so there is a high probability that they will put the toothbrush into their mouths before starting the brushing function. When the teeth touch the bristle side of the toothbrush, an external force will be applied to the toothbrush. As a result, there is a high probability that the starting pressure value of the old users is greater than the wake-up pressure value.

[0059] Step 203, determining a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and the previous pressure reference value corresponding to the last brushing.

[0060] Based on the above considerations, in step 203, the present solution conceives to determine the current pressure reference value based on the wake-up pressure value, the start-up pressure value and the previous pressure reference value to set different pressure reference values ​​for new and old users, appropriately increase the pressure reference value of old users, and appropriately increase the pressure threshold of old users to meet the different needs of new and old users for brushing strength and improve the user's brushing experience.

[0061] Specifically, the wake-up pressure value can be used as the real pressure reference value. Old users can usually withstand greater brushing force, so there is a high probability that old users will put the toothbrush into the mouth before starting the brushing function. The teeth touch the bristle side of the toothbrush, which will give the toothbrush an external force. As a result, there is a high probability that the start-up pressure value of the old user is greater than the wake-up pressure value. For these old users, the real pressure reference value can be appropriately increased to obtain the current pressure reference value corresponding to these old users.

[0062] In addition, considering that when the brushing function is activated, if the user brushes too hard, it is very likely that the calculated current pressure reference value will be too large, which will cause the electric toothbrush to frequently indicate overpressure, reducing the brushing experience. This solution can adjust the current pressure reference value based on the wake-up pressure value, the startup pressure value, and the previous pressure reference value to prevent the calculated current pressure reference value from being too large, causing the electric toothbrush to frequently indicate overpressure.

[0063] Step 204: Use the pressure sensor to collect the real-time pressure value, and determine the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold.

[0064] Taking into account that the current pressure baseline value of some old users is larger than their actual pressure baseline value, in order to prevent these old users from brushing too hard and damaging their teeth, this solution reasonably sets the real-time pressure value, current pressure baseline value, wake-up pressure value and preset pressure threshold, so as to meet the needs of these old users for greater brushing force, and at the same time provide reminders when the brushing force is too strong to protect their teeth.

[0065] Furthermore, if the overpressure detection result indicates that the user is brushing too hard, that is, overpressure, the user can be prompted to reduce the brushing force to protect the teeth. The overpressure prompt can be made in at least one of the following ways: sound prompt, screen light flashing prompt set on the electric toothbrush.

[0066] This solution determines the current pressure reference value through the wake-up pressure value of the electric toothbrush at the moment of waking up, the starting pressure value when the brushing function is started, and the previous pressure reference value of the last brushing, and determines the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold, corrects the current pressure reference value, solves the problem of tooth damage caused by inaccurate pressure reference value, and protects dental health.

[0067] Furthermore, based on the above considerations, this solution determines the current pressure reference value based on the wake-up pressure value, the start-up pressure value, and the previous pressure reference value. And based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and the preset pressure threshold, the overpressure detection result is determined. Different pressure reference values ​​are set for new and old users, and the pressure reference value and pressure threshold of old users are appropriately increased to meet the different needs of new and old users for brushing strength and enhance the user's brushing experience. The current pressure reference value can also be adjusted to prevent the calculated current pressure reference value from being too large, causing the electric toothbrush to frequently prompt overpressure.

[0068] Embodiment 2

[0069] Figure 32 is a flow chart of another overvoltage detection method provided in the second embodiment of the present application. The second embodiment is a further refinement of step 203 and step 204 in the first embodiment. Figure 3 As shown, the method includes:

[0070] Step 301: When it is determined that the electric toothbrush enters the wake-up mode, the wake-up pressure value of the pressure sensor at the wake-up time is obtained.

[0071] The principle and implementation of step 301 are similar to those of step 201 and will not be described in detail.

[0072] Step 302: When it is determined that the electric toothbrush enters the teeth brushing function mode, the starting pressure value of the pressure sensor at the time of starting the teeth brushing function is obtained.

[0073] The principle and implementation of step 302 are similar to those of step 202 and will not be described in detail.

[0074] After step 302, step 303 or step 306 may be executed.

[0075] Step 303: If it is determined that the startup pressure value is greater than or equal to the wake-up pressure value, a candidate pressure value is determined based on the wake-up pressure value, the startup pressure value and the preset parameters.

[0076] After step 303, step 304 or step 305 may be executed.

[0077] In practice, the bristle side of the brush head can be called the front side of the brush head, and the side of the brush head away from the bristles can be called the back side of the brush head. When the brushing function is activated, if the front side of the brush head is subjected to external force, that is, the brush head is subjected to positive pressure, the startup pressure value is greater than the actual pressure reference value. The wake-up pressure value can be used as the actual pressure reference value, that is, at this time, the startup pressure value is usually greater than the wake-up pressure value.

[0078] Similarly, when the toothbrush function is activated, if the back side of the brush head is subjected to external force, that is, the brush head is subjected to reverse pressure, the startup pressure value is lower than the actual pressure reference value. The wake-up pressure value can be used as the actual pressure reference value, that is, the startup pressure value is usually lower than the wake-up pressure value.

[0079] When the brushing function is started, the user may accidentally touch the back of the brush head. Based on the above analysis, this solution can filter out the situation where the user accidentally touches the back of the brush head, so as to determine the current pressure reference value that meets the user's needs based on the wake-up pressure value, the start-up pressure value, the preset parameters and the previous pressure reference value.

[0080] In one implementable manner, determining a candidate pressure value based on the wake-up pressure value, the startup pressure value and the preset parameter includes: determining a difference between the startup pressure value and the wake-up pressure value, and determining a product between the difference and the preset parameter; and determining a candidate pressure value based on the product and the wake-up pressure value.

[0081] Specifically, the candidate pressure value may be determined by the following formula.

[0082] A=A1+(A2-A1)*weight coefficient;

[0083] Among them, A represents the candidate pressure value; A1 represents the wake-up pressure value; A2 represents the start-up pressure value; and the weight coefficient is a parameter value pre-set based on experience.

[0084] The candidate pressure values ​​can be determined accurately and conveniently in the above manner.

[0085] Step 304: If the difference between the candidate pressure value and the previous pressure reference value corresponding to the last brushing meets the preset range condition, the candidate pressure value is determined as the current pressure reference value.

[0086] After step 304 , step 307 may be performed.

[0087] Through the above method, the current pressure reference value can be conveniently determined.

[0088] Step 305: If the difference between the candidate pressure value and the previous pressure reference value corresponding to the last brushing does not meet the preset range condition, the previous pressure reference value is determined as the current pressure reference value.

[0089] After step 305 , step 307 may be performed.

[0090] Considering that if the current pressure reference value is too large, it is easy to cause the electric toothbrush to frequently prompt overpressure, which is not conducive to the user's brushing experience. Therefore, by comparing the candidate pressure value with the previous pressure reference value, the current pressure reference value can be conveniently adjusted.

[0091] Step 306: If it is determined that the startup pressure value is less than the wake-up pressure value, the wake-up pressure value is used as the current pressure reference value.

[0092] By comparing the startup pressure value with the wake-up pressure value, the situation where the user accidentally touches the back of the brush head can be easily filtered out.

[0093] Step 307 : determining a first difference between the real-time pressure value and the current pressure reference value, and determining a second difference between the real-time pressure value and the wake-up pressure value.

[0094] Step 308: If the first difference is greater than the first pressure threshold, or the second difference is greater than the second pressure threshold, it is determined that the user is brushing too hard; wherein the first pressure threshold is greater than the second pressure threshold.

[0095] Specifically, the first pressure threshold and the second pressure threshold are both set based on experience. The first pressure threshold is greater than the second pressure threshold, and it is ensured that the brushing force of the user corresponding to the first pressure threshold will not cause damage to the teeth.

[0096] If the first difference is less than or equal to the first pressure threshold, and the second difference is less than or equal to the second pressure threshold, it is determined that the brushing force of the user will not cause damage to the teeth, that is, there is no overpressure.

[0097] Through the above method, the overvoltage detection result can be determined accurately and conveniently.

[0098] Embodiment 3

[0099] Figure 4 : is a structural schematic diagram of an overpressure detection device provided in the third embodiment of the present application. The overpressure detection device is applied to an electric toothbrush, which includes a pressure sensor and a brush head; the pressure sensor is used to collect the external force on the brush head, such as Figure 4 As shown, the device 400 includes:

[0100] An acquisition unit 410 is used to acquire a wake-up pressure value of the pressure sensor at the wake-up time when it is determined that the electric toothbrush enters the wake-up mode;

[0101] The acquisition unit 420 is further configured to acquire a start-up pressure value of the pressure sensor at the start-up time of the toothbrushing function when it is determined that the electric toothbrush enters the toothbrushing function mode;

[0102] A determination unit 430, configured to determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and the last pressure reference value corresponding to the last brushing;

[0103] The detection unit 440 is used to collect the real-time pressure value using the pressure sensor, and determine the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold.

[0104] The determining unit 430 is specifically configured to determine a candidate pressure value based on the wake-up pressure value, the starting pressure value and the preset parameters if it is determined that the starting pressure value is greater than or equal to the wake-up pressure value;

[0105] If the difference between the candidate pressure value and the previous pressure reference value corresponding to the last brushing meets the preset range condition, the candidate pressure value is determined as the current pressure reference value.

[0106] The determination unit 430 is specifically configured to determine a difference between the startup pressure value and the wake-up pressure value, and determine a product between the difference and a preset parameter;

[0107] Based on the product, and the wake-up pressure value, a candidate pressure value is determined.

[0108] The determination unit 430 is further configured to determine the previous pressure reference value as the current pressure reference value if the difference between the candidate pressure value and the previous pressure reference value corresponding to the last brushing does not meet a preset range condition.

[0109] The determining unit 430 is further configured to use the wake-up pressure value as the current pressure reference value if it is determined that the start-up pressure value is less than the wake-up pressure value.

[0110] The detection unit 440 is specifically configured to determine a first difference between the real-time pressure value and the current pressure reference value, and to determine a second difference between the real-time pressure value and the wake-up pressure value;

[0111] If the first difference is greater than the first pressure threshold, or the second difference is greater than the second pressure threshold, it is determined that the user is brushing too hard;

[0112] The first pressure threshold is greater than the second pressure threshold.

[0113] The overvoltage detection device provided in the embodiments of the present application can execute the overvoltage detection method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects for executing the overvoltage detection method.

[0114] The present application also provides an electric toothbrush, comprising: a motor, a pressure sensor, a brush head and a control unit; the brush head is fixedly connected to the electronic rotor through a connecting shaft; the pressure sensor is arranged on the connecting shaft;

[0115] A pressure sensor is used to collect the external force on the brush head;

[0116] A control unit, for obtaining a wake-up pressure value of the pressure sensor at the wake-up time when determining that the electric toothbrush enters the wake-up mode;

[0117] When it is determined that the electric toothbrush enters the teeth brushing function mode, obtaining a starting pressure value of the pressure sensor at the time when the teeth brushing function is started;

[0118] Determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and the last pressure reference value corresponding to the last brushing;

[0119] The pressure sensor is used to collect the real-time pressure value, and the overpressure detection result is determined based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold.

[0120] Embodiment 4

[0121] Figure 5 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0122] like Figure 5 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0123] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0124] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as an overvoltage detection method.

[0125] In some embodiments, any of the above-described overvoltage detection methods may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of any of the overvoltage detection methods described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform any of the above-described overvoltage detection methods in any other appropriate manner (e.g., by means of firmware).

[0126] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0127] The computer programs for implementing the methods of the present application may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer programs are executed by the processor, the functions / operations specified in the flow charts and / or block diagrams are implemented. The computer programs may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0128] In the context of the present application, a computer readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device or equipment. A computer readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium may be a machine readable signal medium. A more specific example of a machine readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0129] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0130] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0131] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and virtual private servers (VPS).

[0132] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document is not limited here.

[0133] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of this application should be included in the protection scope of this application.

Claims

1. An overvoltage detection method, characterized in that: Applied to an electric toothbrush, the electric toothbrush comprises a pressure sensor and a brush head; the pressure sensor is used to collect the external force exerted on the brush head; the method comprises: When it is determined that the electric toothbrush enters the wake-up mode, obtaining the wake-up pressure value of the pressure sensor at the wake-up time; When it is determined that the electric toothbrush enters the teeth brushing function mode, obtaining a starting pressure value of the pressure sensor at the time when the teeth brushing function is started; Determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and a previous pressure reference value corresponding to the last time the teeth were brushed; The pressure sensor is used to collect a real-time pressure value, and an overpressure detection result is determined based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and a preset pressure threshold.

2. The method according to claim 1, characterized in that The determining of the current pressure reference value based on the wake-up pressure value, the start-up pressure value, and the last pressure reference value corresponding to the last brushing of teeth includes: If it is determined that the startup pressure value is greater than or equal to the wake-up pressure value, determining a candidate pressure value based on the wake-up pressure value, the startup pressure value and a preset parameter; If the difference between the candidate pressure value and the previous pressure reference value corresponding to the last brushing meets the preset range condition, the candidate pressure value is determined as the current pressure reference value.

3. The method according to claim 2, characterized in that The determining of a candidate pressure value based on the wake-up pressure value, the start-up pressure value and a preset parameter includes: Determine a difference between the startup pressure value and the wake-up pressure value, and determine a product between the difference and a preset parameter; Based on the product, and the wake-up pressure value, a candidate pressure value is determined.

4. The method according to claim 2, characterized in that: The method further comprises: If the difference between the candidate pressure value and the previous pressure reference value corresponding to the last brushing does not meet the preset range condition, the previous pressure reference value is determined as the current pressure reference value.

5. The method according to claim 1, characterized in that The determining of the current pressure reference value based on the wake-up pressure value, the start-up pressure value, and the last pressure reference value corresponding to the last brushing of teeth includes: If it is determined that the startup pressure value is less than the wake-up pressure value, the wake-up pressure value is used as the current pressure reference value.

6. The method according to claim 1, characterized in that The determining the overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and the preset pressure threshold includes: determining a first difference between the real-time pressure value and the current pressure reference value, and determining a second difference between the real-time pressure value and the wake-up pressure value; If the first difference is greater than a first pressure threshold, or the second difference is greater than a second pressure threshold, it is determined that the user is brushing too hard; Wherein, the first pressure threshold is greater than the second pressure threshold.

7. An overvoltage detection device, characterized in that: Applied to an electric toothbrush, the electric toothbrush comprises a pressure sensor and a brush head; the pressure sensor is used to collect the external force exerted on the brush head; the device comprises: an acquisition unit, configured to acquire a wake-up pressure value of the pressure sensor at the wake-up time when it is determined that the electric toothbrush enters the wake-up mode; The acquisition unit is further used to acquire the start-up pressure value of the pressure sensor at the start-up time of the toothbrushing function when it is determined that the electric toothbrush enters the toothbrushing function mode; a determination unit, configured to determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and a previous pressure reference value corresponding to the last brushing; The detection unit is used to collect a real-time pressure value using the pressure sensor, and determine an overpressure detection result based on the real-time pressure value, the current pressure reference value, the wake-up pressure value and a preset pressure threshold.

8. An electric toothbrush, characterized in that: include: A motor, a pressure sensor, a brush head and a control unit; the brush head is fixedly connected to the electronic rotor via a connecting shaft; the pressure sensor is arranged on the connecting shaft; The pressure sensor is used to collect the external force applied to the brush head; The control unit is used to obtain the wake-up pressure value of the pressure sensor at the wake-up time when determining that the electric toothbrush enters the wake-up mode; When it is determined that the electric toothbrush enters the teeth brushing function mode, obtaining a starting pressure value of the pressure sensor at the time when the teeth brushing function is started; Determine a current pressure reference value based on the wake-up pressure value, the start-up pressure value, and a previous pressure reference value corresponding to the last time the teeth were brushed; The pressure sensor is used to collect a real-time pressure value, and an overpressure detection result is determined based on the real-time pressure value, the current pressure reference value, the wake-up pressure value, and a preset pressure threshold.

9. An electronic device comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the overvoltage detection method according to any one of claims 1 to 6 when running the program instructions.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the overvoltage detection method according to any one of claims 1 to 6 is implemented.

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