CN115006035A - Electric toothbrush control method - Google Patents
Electric toothbrush control method Download PDFInfo
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- CN115006035A CN115006035A CN202210601125.4A CN202210601125A CN115006035A CN 115006035 A CN115006035 A CN 115006035A CN 202210601125 A CN202210601125 A CN 202210601125A CN 115006035 A CN115006035 A CN 115006035A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/24—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
- A61C17/26—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/221—Control arrangements therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/224—Electrical recharging arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/225—Handles or details thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
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- Animal Behavior & Ethology (AREA)
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- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
The invention relates to the technical field of control of household electrical equipment, in particular to a control method of an electric toothbrush, which comprises the following steps: receiving a starting signal, starting a driving motor and keeping the speed at a first set speed; acquiring angle data detected by a gyroscope, judging whether the angle data meets a preset time-angle curve or not, and if so, increasing the speed of a driving motor to a second set speed; acquiring an angle value detected by a gyroscope, and adjusting a speed interval of a driving motor according to the angle value; acquiring a pressure value of a pressure sensor on the toothbrush handle, and adjusting the rotating speed of the motor within the range of the speed interval according to the acquired pressure value; and when the angle value detected by the gyroscope reaches a set threshold value and the pressure value detected by the pressure sensor is 0, closing the driving motor. The method provided by the invention controls the tooth brushing strength by using the change of the inclination angle and the pressure, and is simple, efficient and intelligent to control.
Description
Technical Field
The invention relates to the technical field of control of household electrical equipment, in particular to a control method of an electric toothbrush.
Background
The toothbrush is a conventional daily cleaning tool, the traditional toothbrush is manual, a user can conveniently determine the action, force and position of the toothbrush according to own feeling, and the toothbrush is comfortable to use.
One of the biggest problems of the manual toothbrush is low efficiency, the electric toothbrush has high vibration frequency, and the number of brushing times in the same time is much higher than that of the manual toothbrush, so the electric toothbrush is far superior to the manual toothbrush in cleaning effect.
The electric toothbrush is driven to rotate or vibrate by a motor, and the control of the motor is usually controlled by a switching value, namely, the on state and the off state. This results in a very unintelligent control of the electric toothbrush, which causes the toothpaste to be thrown out due to too fast start-up when just starting to brush teeth; when a user needs to brush a certain part intensively, the brushing force cannot be controlled according to the requirement. In a word, the rotation speed control of the toothbrush cannot be adjusted according to the needs of users, and the variable requirements of the users are difficult to meet.
Disclosure of Invention
In view of the above, it is desirable to provide a method and a system for controlling an electric toothbrush, and an electric toothbrush.
The embodiment of the invention is realized in such a way that the electric toothbrush control method comprises the following steps:
receiving a starting signal, starting a driving motor and keeping the speed at a first set speed;
acquiring angle data detected by a gyroscope, judging whether the angle data meet a preset time-angle curve or not, and if so, increasing the speed of a driving motor to a second set speed;
acquiring an angle value detected by a gyroscope, and adjusting a speed interval of a driving motor according to the angle value;
acquiring a pressure value of a pressure sensor on the toothbrush handle, and adjusting the rotating speed of the motor within the range of the speed interval according to the acquired pressure value;
and when the angle value detected by the gyroscope reaches a set threshold value and the pressure value detected by the pressure sensor is 0, closing the driving motor.
In one embodiment, the present invention provides an electric toothbrush control system comprising:
an electric toothbrush body; and
a control module disposed within the motor toothbrush body, the control module for performing a method of controlling an electric toothbrush according to the present invention.
In one embodiment, the present invention provides an electric toothbrush comprising:
an electric toothbrush body;
the base is matched with the electric toothbrush body and used for charging the electric toothbrush body; and
a control module disposed within the motor toothbrush body, the control module for performing a method of controlling an electric toothbrush according to the present invention.
The control method provided by the invention enables the electric motor to be kept at a lower first set speed after being started, can effectively prevent toothpaste from splashing, and simultaneously avoids high-speed idle running before the toothbrush enters the oral cavity; after that, the speed is increased to a second set speed after the time-angle curve meeting the set requirement is judged by detecting the angle data, and the user can be guided to operate according to a program by setting the time-angle curve so as to uniformly brush the toothpaste on the teeth and further brush the toothpaste comprehensively, thereby being beneficial to the user to develop a good tooth brushing habit; then, according to the relation of inclination and pressure, the user can freely drive the working speed or the vibration frequency of the motor at a high speed, so that the tooth brushing is carried out at different intensities, the control of a switch and a key is not needed in the process, the user can freely adjust by feeling, and the device is flexible and changeable and has high intelligence.
Drawings
FIG. 1 is a flow chart of a method of controlling an electric toothbrush according to one embodiment;
fig. 2 is a block diagram of the internal structure of the control module in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements should not be limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present disclosure.
As shown in fig. 1, in one embodiment, a method for controlling an electric toothbrush is provided, which may specifically include the following steps:
receiving a starting signal, starting a driving motor and keeping the speed at a first set speed;
acquiring angle data detected by a gyroscope, judging whether the angle data meet a preset time-angle curve or not, and if so, increasing the speed of a driving motor to a second set speed;
acquiring an angle value detected by a gyroscope, and adjusting a speed interval of a driving motor according to the angle value;
acquiring a pressure value of a pressure sensor on the toothbrush handle, and adjusting the rotating speed of the motor within the range of the speed interval according to the acquired pressure value;
and when the angle value detected by the gyroscope reaches a set threshold value and the pressure value detected by the pressure sensor is 0, closing the driving motor.
In this embodiment, the activation signal may be generated by a switch disposed on the toothbrush handle, or may be generated by the separation of the electric toothbrush from the base, which are two alternative embodiments. In this embodiment, after obtaining the actuating signal, driving motor progressively promotes speed to first set speed, and first set speed is lower than normal operating speed, can effectively prevent splashing of toothpaste. In this embodiment, the driving motor may be a rotating motor, which drives the bristles to rotate by rotation; the vibration motor may be a vibration motor, and the speed is the rotation speed of the motor, and the rotation speed determines the vibration frequency.
In this embodiment, the gyroscope and the pressure sensor are built in the toothbrush, and the tilt angle of the toothbrush can be detected by the gyroscope, and in this embodiment, the two angles including the tilt angle of the entire toothbrush and the orientation of the toothbrush bristles are respectively denoted as a first tilt angle and a second tilt angle, and the angle values in the present invention both refer to the second tilt angle, but the first tilt angle and the second tilt angle have a correlation relationship. In this embodiment, the pressure sensor is disposed within the handle to generate a pressure value when the handle is deformed by a force.
In the embodiment, the time-angle curve records the change process of the inclination angle time of the toothbrush, and the change of the angle corresponds to the process of brushing toothpaste on teeth by using the toothbrush by a user, and the time-angle curve can guide the user to brush the toothpaste on the teeth before high-speed brushing; if the acquired angle data meets the time-angle curve, the program considers that the user finishes the brushing process of the toothpaste, and the rotating speed of the motor can be increased to a second rotating speed. It should be noted that the angle data includes a plurality of values, and the values change with time.
In the embodiment, after the speed of the motor reaches the second rotating speed, the motor enters a normal tooth brushing state, at the moment, the rotating speed can be automatically rotated at a high speed according to the orientation of the toothbrush and the magnitude of the pressure value, the process does not need to control a switch or take the toothbrush out of the oral cavity, and the speed can be adjusted according to the magnitude of the pressure value in use; the angle value determines the range of speed regulation, the angle value is determined by different holding postures, the force exerted by hands in different holding postures is different, so that the corresponding relation is established between different angle values and different speed intervals, and the speed regulation in any holding posture can be facilitated. It is understood that the corresponding relationship between the holding gesture and the speed can be established through data collection, which is a problem of data collection, and the present invention is not limited thereto.
In this embodiment, further, when the detected angle value reaches the set threshold (corresponding to the toothbrush being placed vertically or horizontally) and the pressure value detected by the pressure sensor is 0, the motor is turned off, and the toothbrush stops working.
The control method provided by the invention enables the electric motor to be kept at a lower first set speed after being started, can effectively prevent toothpaste from splashing, and simultaneously avoids high-speed idle running before the toothbrush enters the oral cavity; after that, the speed is increased to a second set speed after the set time-angle curve is judged to be met by detecting the angle data, and the setting of the time-angle curve can guide a user to operate according to a program so as to uniformly brush toothpaste on teeth and further comprehensively brush the toothpaste, so that the good tooth brushing habit of the user can be developed; then, according to the relation of inclination and pressure, the user can freely drive the working speed or the vibration frequency of the motor at a high speed, so that the teeth can be brushed at different intensities, the control of a switch and a key is not needed in the process, the user can freely adjust the teeth by feeling, and the tooth brushing machine is flexible and changeable and has high intelligence.
As a preferred embodiment of the present invention, the starting the driving motor and maintaining the speed at the first set speed includes:
starting a driving motor and rotating at a speed lower than a first set speed;
detecting the increase of the inclination angle of the toothbrush through a gyroscope, and acquiring the detection value of a pressure sensor;
and judging whether the detection value of the pressure sensor is 0 all the time within the first set time, and if not, increasing the rotating speed of the driving motor to the first set speed at a constant speed.
In this embodiment, the speed lower than the first speed may be 0.2 times, 0.5 times, etc. of the first speed, which may be set with reference to the highest speed at which toothpaste is not thrown out during actual use, and in different transmission structures, correspond to different motor rotation speeds.
In this embodiment, the inclination angle of the toothbrush can be referenced to 0 degrees in the horizontal direction, the greater the degree of upward inclination of the toothbrush, the greater the inclination angle. Here, the inclination angle of the entire toothbrush is not dependent on the orientation of the brush.
In this embodiment, the first set time may be 2 seconds, 3 seconds, or the like, which corresponds to the time when the toothbrush is placed in the oral cavity, and when it is detected that the pressure is not 0, it is determined that the toothbrush is under pressure, and the toothbrush may start to operate, so as to increase the speed to the first set speed.
As a preferred embodiment of the present invention, in the speed increasing process, the method further includes:
taking the moment of starting to increase the speed as a starting point and the duration t as a period, and acquiring the maximum variation of the inclination angle and the maximum variation of the pressure in each period;
calculating the sum of the maximum variation of the inclination angle and the maximum variation of the pressure, and solving the ratio of the sum to the time t;
if the ratio of two consecutive periods is 0, the driving motor is stopped.
In the embodiment, the angle and/or the pressure of the toothbrush can be changed more or less in the process of brushing teeth, and by the method, abnormal conditions can be eliminated, the motor is prevented from idling in a non-working state, and the motor is stopped in time. In this embodiment, optionally, the speed-up time may be within 3 seconds, and then t may be 1 second, 0.5 second, or the like.
As a preferred embodiment of the present invention, the determining whether the angle data satisfies a preset time-angle curve includes:
establishing an angle change curve according to the change relation of the angle data along with time;
and calculating the degree of engagement between the angle change curve and the preset time-angle curve, wherein if the degree of engagement is greater than a set engagement threshold, the angle data meet the preset time-angle curve.
In this embodiment, the angle data includes an angle value and a corresponding time, so that the time can be taken as a horizontal axis, and the angle value is taken as a vertical axis to establish an angle change curve.
In the embodiment, whether the angle data satisfies the time-angle curve is judged by calculating the fitting degree of the angle change curve and the time-angle curve, wherein the fitting degree calculation includes whether the number of the intersection points of the curve and the horizontal axis is the same, whether the number of the segments of the curve is the same, the deviation of the extreme value and the like, all the characteristics are represented by the shape of the curve, and qualitative comparison is performed through quantitative calculation.
As a preferred embodiment of the present invention, the fitting degree of the angle variation curve and the preset time-angle curve is calculated by the following formula:
ψ＝k 1 ψ 1 +k 2 ψ 2 +k 3 ψ 3
wherein: psi is the fit of the two curves; psi 1 For phase-fit terms, psi 2 For duration agreeing, psi 3 To orient the terms, k 1 、k 2 、k 3 Are coefficients of corresponding terms, respectively, and k 1 +k 2 +k 3 ＝1，k 1 ≥k 2 ≥k 3 ；n 1 、n 2 The times that the time angle curve passes through the time axis and the times that the angle change curve passes through the time axis are respectively; l is 1i 、L 2i Respectively the time lengths between the ith intersection point and the (i-1) th intersection point of the time angle curve and the angle change curve; y is 1j 、Y 2j The time angle curve and the angle change curve are the maximum values of the jth interval respectively.
In this embodiment, the fitting degree of the two curves can be obtained through the calculation of the above formula, the fitting degree is 0-1, the two curves are completely not fitted when the fitting degree is 0, and the two curves are completely fitted when the fitting degree is 1; the degree of engagement threshold to be set may be 0.6 or more, and the sensitivity of the program may be adjusted by adjusting the degree of engagement threshold.
In this example, it will be appreciated that the time-angle curve records the angle of the toothbrush as it is being applied to the tooth surface by a hand-held toothbrushA time varying process whereby the user is guided to perform the same or similar actions to apply the dentifrice to the tooth surfaces prior to high speed brushing. Because the above calculation is qualitative comparison in nature, the difference between the operation of different users and the standard procedure has high tolerance; when the user wants to strictly perform the operation, the operation can be performed by increasing the set matching threshold. Exemplarily, k 1 、k 2 、k 3 May be taken to be 0.6, 0.3 and 0.1, respectively.
As a preferred embodiment of the present invention, the adjusting the speed interval of the driving motor according to the angle value includes:
searching a corresponding speed interval according to the obtained angle value;
judging whether the searched speed interval contains the current speed of the driving motor,
if not, generating an active interval according to the length of the searched speed interval, and enabling one end point of the active interval to be equal to the current speed of the driving motor;
and moving the moving interval according to the speed change of the driving motor until the moving interval is overlapped with the searched speed interval.
In this embodiment, the program may find a corresponding speed interval from the obtained angle value by constructing an angle-speed correspondence, where it should be noted that, by setting a fixed interval length, a corresponding speed value may be found from the angle, and the speed interval may be determined by the set area length with the speed value as a midpoint.
In this embodiment, the main purpose of the above steps is to determine the corresponding speed interval according to the holding posture of the toothbrush, so the angle includes two angles, i.e. the overall inclination angle of the toothbrush and the orientation of the bristles, so "finding the corresponding speed interval according to the obtained angle value" is to find the intermediate speed of the speed interval in the corresponding relationship of the three-dimensional coordinates of the first inclination angle, the second inclination angle and the speed, thereby obtaining the speed interval.
As a preferred embodiment of the present invention, the adjusting the rotation speed of the motor within the range of the speed interval according to the obtained pressure value includes:
judging whether the obtained pressure value is 0 or not, and if so, setting the speed of the driving motor as the speed corresponding to the left endpoint of the speed interval;
if not, multiplying the current pressure value by an amplification factor to obtain an amplification value;
determining the speed corresponding to the amplification value according to the corresponding relation between the pressure detection range and the speed interval, and setting the speed corresponding to the amplification value as the current speed of the driving motor;
wherein, the amplification factor is the maximum distance between the speed interval and the second set speed.
In this embodiment, the correspondence relationship between the pressure detection range and the speed interval means that the pressure detection range and the speed interval are linearly corresponding, two end points of the pressure detection range and the speed interval correspond to each other, the middle value of the pressure detection range and the middle value of the pressure detection range correspond to each other, and when the pressure detection value is 0.6 times of the maximum pressure detection value, the corresponding speed is the speed obtained by adding the interval length of 0.6 times to the left end point of the speed interval. In this embodiment, a direct linear correspondence between pressure and speed is not used, since the pressure is difficult to reach a large value during normal use of the toothbrush, and it is difficult to achieve full speed adjustment within the interval range despite the speed interval being given, so the present invention sets an amplification factor to solve this problem.
An embodiment of the present invention further provides an electric toothbrush control system, which includes:
an electric toothbrush body; and
the control module is arranged in the motor toothbrush body and is used for executing the electric toothbrush control method.
In this embodiment, the invention is not particularly limited to the hardware structures of the toothbrush body and the control module, by executing the method provided by the invention, keeps the first set speed lower after the electric start, so as to effectively prevent the toothpaste from splashing and avoid the high-speed idle rotation before the toothbrush enters the mouth cavity; after that, the speed is increased to a second set speed after the set time-angle curve is judged to be met by detecting the angle data, and the setting of the time-angle curve can guide a user to operate according to a program so as to uniformly brush toothpaste on teeth and further comprehensively brush the toothpaste, so that the good tooth brushing habit of the user can be developed; then, according to the relation of inclination and pressure, the user can freely drive the working speed or the vibration frequency of the motor at a high speed, so that the tooth brushing is carried out at different intensities, the control of a switch and a key is not needed in the process, the user can freely adjust by feeling, and the device is flexible and changeable and has high intelligence.
Embodiments of the present invention also provide an electric toothbrush, comprising:
an electric toothbrush body;
the base is matched with the electric toothbrush body and used for charging the electric toothbrush body; and
a control module disposed within the motor toothbrush body, the control module configured to perform a method of controlling an electric toothbrush according to an embodiment of the present invention.
In this embodiment, optionally, the activation signal may be triggered after the toothbrush body is separated from the base.
In this embodiment, the invention is not particularly limited to the hardware structures of the toothbrush body and the control module, by executing the method provided by the invention, keeps the first set speed lower after the electric start, so as to effectively prevent the toothpaste from splashing and avoid the high-speed idle rotation before the toothbrush enters the mouth cavity; after that, the speed is increased to a second set speed after the time-angle curve meeting the set requirement is judged by detecting the angle data, and the user can be guided to operate according to a program by setting the time-angle curve so as to uniformly brush the toothpaste on the teeth and further brush the toothpaste comprehensively, thereby being beneficial to the user to develop a good tooth brushing habit; then, according to the relation of inclination and pressure, the user can freely drive the working speed or the vibration frequency of the motor at a high speed, so that the teeth can be brushed at different intensities, the control of a switch and a key is not needed in the process, the user can freely adjust the teeth by feeling, and the tooth brushing machine is flexible and changeable and has high intelligence.
FIG. 2 illustrates an internal block diagram of a control module in one embodiment. As shown in fig. 2, the control module includes a processor and a memory connected by a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the control module stores an operating system, and may also store a computer program, and when the computer program is executed by the processor, the computer program may enable the processor to implement the method for controlling an electric toothbrush according to the embodiment of the present invention. The internal memory may also store a computer program, and when the computer program is executed by the processor, the computer program may cause the processor to execute the method for controlling the electric toothbrush according to the embodiment of the present invention.
It will be appreciated by those skilled in the art that the configuration shown in fig. 2 is a block diagram of only a portion of the configuration associated with the inventive arrangements and does not constitute a limitation on the control modules to which the inventive arrangements are applied, and that a particular control module may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In one embodiment, a control module is proposed, the control module comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
receiving a starting signal, starting a driving motor and keeping the speed at a first set speed;
acquiring angle data detected by a gyroscope, judging whether the angle data meet a preset time-angle curve or not, and if so, increasing the speed of a driving motor to a second set speed;
acquiring an angle value detected by a gyroscope, and adjusting a speed interval of a driving motor according to the angle value;
acquiring a pressure value of a pressure sensor on the toothbrush handle, and adjusting the rotating speed of the motor within the range of the speed interval according to the acquired pressure value;
and when the angle value detected by the gyroscope reaches a set threshold value and the pressure value detected by the pressure sensor is 0, closing the driving motor.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which, when executed by a processor, causes the processor to perform the steps of:
receiving a starting signal, starting a driving motor and keeping the speed at a first set speed;
acquiring angle data detected by a gyroscope, judging whether the angle data meet a preset time-angle curve or not, and if so, increasing the speed of a driving motor to a second set speed;
acquiring an angle value detected by a gyroscope, and adjusting a speed interval of a driving motor according to the angle value;
acquiring a pressure value of a pressure sensor on the toothbrush handle, and adjusting the rotating speed of the motor within the range of the speed interval according to the acquired pressure value;
and when the angle value detected by the gyroscope reaches a set threshold value and the pressure value detected by the pressure sensor is 0, closing the driving motor.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A method of controlling an electric toothbrush, the method comprising:
receiving a starting signal, starting a driving motor and keeping the speed at a first set speed;
acquiring angle data detected by a gyroscope, judging whether the angle data meet a preset time-angle curve or not, and if so, increasing the speed of a driving motor to a second set speed;
acquiring an angle value detected by a gyroscope, and adjusting a speed interval of a driving motor according to the angle value;
acquiring a pressure value of a pressure sensor on the toothbrush handle, and adjusting the rotating speed of the motor within the range of the speed interval according to the acquired pressure value;
and when the angle value detected by the gyroscope reaches a set threshold value and the pressure value detected by the pressure sensor is 0, closing the driving motor.
2. The method of claim 1, wherein the activating the drive motor and maintaining the speed at the first set speed comprises:
starting a driving motor and rotating at a speed lower than a first set speed;
detecting the increase of the inclination angle of the toothbrush through a gyroscope, and acquiring the detection value of a pressure sensor;
and judging whether the detection value of the pressure sensor is 0 all the time within the first set time, and if not, increasing the rotating speed of the driving motor to the first set speed at a constant speed.
3. The method of controlling an electric toothbrush according to claim 2, wherein the speed-up process further comprises:
taking the time for starting speed increase as a starting point and the duration t as a period, and acquiring the maximum variation of the inclination angle and the maximum variation of the pressure in each period;
calculating the sum of the maximum variation of the inclination angle and the maximum variation of the pressure, and solving the ratio of the sum to the time t;
if the ratio of two consecutive periods is 0, the driving motor is stopped.
4. The method of claim 1, wherein the determining whether the angle data satisfies a preset time-angle curve comprises:
establishing an angle change curve according to the change relation of the angle data along with time;
and calculating the fitting degree of the angle change curve and a preset time-angle curve, wherein if the fitting degree is greater than a set fitting threshold, the angle data meet the preset time-angle curve.
5. The method of claim 4, wherein the degree of engagement of the angle variation curve with the preset time-angle curve is calculated by the following formula:
ψ＝k 1 ψ 1 +k 2 ψ 2 +k 3 ψ 3
wherein: psi is the fit of the two curves; psi 1 For phase-fit terms, psi 2 For duration agreeing, psi 3 To orient the terms, k 1 、k 2 、k 3 Are coefficients of corresponding terms, respectively, and k 1 +k 2 +k 3 ＝1，k 1 ≥k 2 ≥k 3 ；n 1 、n 2 The times that the time angle curve passes through the time axis and the times that the angle change curve passes through the time axis are respectively; l is 1i 、L 2i Respectively the time lengths between the ith intersection point and the (i-1) th intersection point of the time angle curve and the angle change curve; y is 1j 、Y 2j The time angle curve and the angle change curve are the maximum values of the jth interval respectively.
6. The method of claim 1, wherein said adjusting the speed range of the drive motor based on the angle value comprises:
searching a corresponding speed interval according to the obtained angle value;
judging whether the searched speed interval contains the current speed of the driving motor,
if not, generating an active interval according to the length of the searched speed interval, and enabling one end point of the active interval to be equal to the current speed of the driving motor;
and moving the movable interval according to the speed change of the driving motor until the movable interval is overlapped with the searched speed interval.
7. The method of claim 1, wherein said adjusting the motor speed within the range of speed intervals according to the obtained pressure value comprises:
judging whether the obtained pressure value is 0 or not, and if so, setting the speed of the driving motor as the speed corresponding to the left endpoint of the speed interval;
if not, multiplying the current pressure value by an amplification factor to obtain an amplification value;
determining the speed corresponding to the amplification value according to the corresponding relation between the pressure detection range and the speed interval, and setting the speed corresponding to the amplification value as the current speed of the driving motor;
wherein, the amplification factor is the maximum distance between the speed interval and the second set speed.
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