CN115105238A - Electric toothbrush control method and device, storage medium and electric toothbrush - Google Patents
Electric toothbrush control method and device, storage medium and electric toothbrush Download PDFInfo
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- CN115105238A CN115105238A CN202110287875.4A CN202110287875A CN115105238A CN 115105238 A CN115105238 A CN 115105238A CN 202110287875 A CN202110287875 A CN 202110287875A CN 115105238 A CN115105238 A CN 115105238A
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- 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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Abstract
Disclosed herein are a control method and apparatus for an electric toothbrush, a storage medium, and an electric toothbrush. The control method comprises the steps of obtaining load related parameters of a motor in the electric toothbrush; determining a target working mode of the electric toothbrush according to the acquired load related parameters of the motor; controlling the electric toothbrush to operate in accordance with the determined target operating mode; the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor. The electric toothbrush is characterized in that the motor working parameters capable of reflecting the change of the motor load are obtained by utilizing the influence of the pressure generated when the brush head contacts with the teeth on the working state of the motor, and then the electric toothbrush is controlled to enter a proper working mode.
Description
Technical Field
The invention relates to the technical field of control of household appliances, in particular to a control method and device of an electric toothbrush, a storage medium and the electric toothbrush.
Background
At present, the electric toothbrush is gradually widely used, thereby greatly facilitating tooth cleaning and better ensuring oral health. The user typically squeezes the toothpaste onto the bristles, immerses the bristles in water, and then activates the electric toothbrush to brush the teeth. However, if the user turns on the electric toothbrush before the toothbrush is put into the oral cavity to contact with the teeth, toothpaste and water on the bristles can splash under high-frequency vibration, and the use experience of the user is seriously affected.
Disclosure of Invention
The embodiment of the disclosure provides a control method and device for an electric toothbrush, a storage medium and the electric toothbrush, which can determine a proper operation mode of the electric toothbrush according to a load related parameter of a motor in the electric toothbrush, so as to correspondingly operate according to the determined operation mode.
The disclosed embodiment provides a method for controlling an electric toothbrush, comprising,
acquiring load related parameters of a motor in the electric toothbrush;
determining a target working mode of the electric toothbrush according to the acquired load related parameters of the motor;
controlling the electric toothbrush to operate according to the determined target operating mode;
the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor.
The disclosed embodiments also provide a control device of an electric toothbrush, including,
an acquisition module configured to acquire load related parameters of a motor in the electric toothbrush;
the control module is set to determine a target working mode of the electric toothbrush according to the acquired load related parameters of the motor; controlling the electric toothbrush to operate according to the determined target operating mode;
the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor.
The disclosed embodiment also provides an electric toothbrush, comprising,
the device comprises a controller, a motor driving circuit and a motor working signal acquisition circuit;
the motor working signal acquisition circuit is arranged to acquire a motor working signal; the motor working signal is a signal used for determining a load related parameter of the motor;
the controller is set to determine the load related parameters of the corresponding motor according to the motor working signals; determining a target operating mode of the electric toothbrush according to the load-related parameters of the motor; the electric toothbrush is controlled to operate according to the determined target working mode through the motor driving circuit;
the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor.
The disclosed embodiments also provide a storage medium having a computer program stored therein, wherein the computer program is configured to execute the above-mentioned method of controlling an electric toothbrush when running.
It can be seen that the anti-splashing design realized based on the detection of the load related parameters of the motor in the electric toothbrush makes full use of the characteristics of the electric toothbrush that the load related parameters of the motor are different under different loads, correspondingly controls the electric toothbrush to enter different target working modes, and improves the use comfort of users.
Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a power toothbrush according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of a method of controlling an electric toothbrush according to one embodiment of the present disclosure;
FIG. 3 is a schematic view of a motor in relation to a brush head and teeth in an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a control circuit in an embodiment of the disclosure;
FIG. 5 is a diagram illustrating a process for controlling an electric toothbrush according to a second embodiment of the present disclosure;
fig. 6 is a schematic diagram of a current change in a working process of a motor according to a second embodiment of the present disclosure;
FIG. 7 is a flow chart of a method of controlling an electric toothbrush according to a third embodiment of the present disclosure;
FIG. 8 is a structural frame view of an electric toothbrush according to a fourth embodiment of the present disclosure;
FIG. 9 is a structural frame diagram of another electric toothbrush according to a fourth embodiment of the present disclosure;
fig. 10 is a frame diagram of a control device of an electric toothbrush according to a fifth embodiment of the present disclosure.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 11 | |
12 | Toothbrush |
| 31 | Sound |
32 | Motor shaft |
| 33 | |
34 | |
| 35 | Tooth or teeth | Q2-Q5 | Switching device |
| R | Sampling resistor | M | Sound wave vibration motor |
| E | Amplifying element |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The electric toothbrush drives the brush head to rotate or generate high-frequency vibration through the quick rotation or vibration of the motor core, so as to help a user clean teeth. There are two broad categories of electric toothbrushes in principle: rotation and vibration. The rotary toothbrush is characterized in that a motor drives a circular brush head to rotate, and the friction effect is enhanced while the ordinary tooth brushing action is performed. The vibrating type toothbrush is more complicated, and an electrically driven vibrating motor is arranged in the vibrating type toothbrush, so that the brush head can generate high-frequency swing to decompose toothpaste into fine foam to deeply clean teeth and slits.
Electric toothbrushes are increasingly used, and more improvements are being proposed to improve the comfort of the user in addition to the basic brushing function. In daily use, toothpaste is squeezed, a power supply is switched on, a tooth brushing mode is selected, then the electric toothbrush starts to brush teeth when contacting with the teeth, before the electric toothbrush does not contact with the teeth and starts to brush the teeth, when the electric toothbrush starts to work according to the normally set tooth brushing mode, the toothpaste and the water on the bristles can splash under high-frequency vibration, and the use comfort level of a user is influenced. In the art, a related solution proposes to add a pressure sensor in the electric toothbrush, which detects the change in pressure of the brushhead by means of the pressure sensor or pressure assembly. However, it can be seen that the structural design is complicated by the identification through the pressure sensor or the pressure assembly, and the detection error is caused by the structural difference in the production and manufacturing process; meanwhile, a pressure sensor or a pressure assembly is added, so that the overall cost of the electric toothbrush is greatly influenced.
An example of the basic structure of the electric toothbrush provided in the embodiments of the present disclosure is shown in fig. 1, in which 11 is a brush head and 12 is a toothbrush body. The battery or power module, the motor, and associated drive and control circuitry are located in the toothbrush body.
Example one
The embodiment of the present disclosure provides a method for controlling an electric toothbrush, the flow of which is shown in fig. 2, including:
step 201, acquiring load related parameters of a motor in the electric toothbrush; the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor;
step 202, determining a target working mode of the electric toothbrush according to the acquired load related parameters of the motor;
and step 203, controlling the electric toothbrush to operate according to the determined target working mode.
In some exemplary embodiments, the load-related parameter of the electric machine comprises at least one of: current, power, and rate of change of current.
In some exemplary embodiments, determining the target operation mode of the electric toothbrush according to the acquired load-related parameter of the motor includes:
determining the target working mode according to the obtained load-related parameters of the motor and a preset parameter-working mode corresponding relation;
the preset parameter-working mode corresponding relation comprises: and corresponding relation between different load related parameter ranges and different working modes.
In some exemplary embodiments, when different load-related parameters are selected and obtained, the preset parameter-operating mode correspondence relationship is adjusted accordingly. For example, when the current is obtained, the correspondence relationship is as follows:
motor current > current threshold 1: working mode 1;
motor current < current threshold 2: working mode 2;
alternatively, the first and second electrodes may be,
motor current > current threshold 3: a working mode 1;
current threshold 3> motor current > current threshold 4: a working mode 2;
alternatively, the first and second electrodes may be,
motor current > current threshold 5: a working mode 1;
motor current ═ current threshold 5: mode 2 of operation.
In some exemplary embodiments, more target operating modes and corresponding motor current ranges may be extended, not limited to the examples described above.
In some exemplary embodiments, when obtaining the power, the preset corresponding relationship is as follows:
motor power > power threshold 1: a working mode 1;
motor power < power threshold 2: working mode 2;
alternatively, the first and second electrodes may be,
motor power > power threshold 3: working mode 1;
power threshold 3> motor power > power threshold 4: mode 2 of operation.
In some exemplary embodiments, more target operating modes and corresponding motor power ranges may be extended, not limited to the above examples.
In some exemplary embodiments, when obtaining the current change rate, the preset corresponding relationship is as follows:
current rate of change > current rate of change threshold 1: working mode 1;
current rate of change < current rate of change threshold 2: working mode 2;
alternatively, the first and second electrodes may be,
current rate of change > current rate of change threshold 3: working mode 1;
current rate of change threshold 3> -current rate of change > current rate of change threshold 4: mode 2 of operation.
In some exemplary embodiments, more target operating modes and corresponding motor current rate of change ranges may be extended, not limited to the examples described above.
In some exemplary embodiments, when obtaining a plurality of load-related parameters, the preset parameter-operating mode correspondence relationship is also adjusted, and one operating mode corresponds to a combination of a plurality of load-related parameter ranges. For example: the load-related parameters are: the preset parameter-working mode corresponding relation of the current and the current change rate is as follows:
motor current > current threshold 1, and rate of current change > rate of current change threshold 1: working mode 1;
motor current < current threshold 2, and rate of current change < rate of current change threshold 2: mode 2 of operation.
In some exemplary embodiments, the load-related parameter of the electric machine comprises at least one of: current, power, rate of change of current, and amplitude of rotation.
In some exemplary embodiments, when obtaining a plurality of load-related parameters, the preset parameter-operating mode correspondence relationship is also adjusted, and one operating mode corresponds to a combination of a plurality of load-related parameter ranges. For example: the load-related parameters are: the preset parameter-working mode corresponding relation of the current and the rotation amplitude is as follows:
motor current > current threshold 1, and motor rotation amplitude < rotation amplitude threshold 1: a working mode 1;
motor current < current threshold 2, and motor rotation amplitude < rotation amplitude threshold 2: mode 2 of operation.
In some exemplary embodiments, the target operation mode 1 is a normal tooth brushing mode, and the target operation mode 2 is a splash-proof mode;
before obtaining the load-related parameter of the motor in the electric toothbrush, the method further comprises:
and 200, after the electric toothbrush is started, controlling the electric toothbrush to initially operate in an initial working mode.
In some exemplary embodiments, the initial operating mode is one of the target operating modes. In some exemplary embodiments, the initial operating mode is a splash-guard mode.
The normal brushing mode includes various brushing function modes of the electric toothbrush, such as: a whitening mode, an anti-allergy mode, a strong tooth brushing mode and the like. The tooth brushing mode is set by a user, and in the control scheme provided by the embodiment of the disclosure, when the electric toothbrush is controlled to enter the normal tooth brushing mode, the electric toothbrush is controlled to start working according to the tooth brushing function mode set by the user.
In some exemplary embodiments, the electric toothbrush enters a normal brushing mode, increasing the motor vibration frequency, increasing the operating voltage duty cycle, and/or increasing the motor operating voltage; namely, controlling the motor to run (at a high speed) according to the corresponding rotating speed of the mode; alternatively, the operation is performed at a vibration frequency (high speed) and a swing amplitude (large amplitude) corresponding to the mode. The electric toothbrush enters an anti-splashing mode, so that the vibration frequency of the motor is reduced, the duty ratio of working voltage is reduced and/or the working voltage of the motor is reduced; namely, controlling the motor to run at a rotating speed (low speed) corresponding to the mode; or, the operation is performed according to the vibration frequency (low speed) and amplitude (small amplitude) corresponding to the mode. Those skilled in the art will appreciate that the motor of the electric toothbrush operates in a milder mode in the splash prevention mode to avoid splashing of water or toothpaste; under the normal working mode, the motor of the electric toothbrush runs according to the rotating speed, the vibration frequency, the vibration amplitude or the rotating amplitude required by tooth cleaning, so as to achieve the effect of tooth cleaning. The specific parameter settings of the electric toothbrush corresponding to each target operation mode are not limited to the above-mentioned examples of the rotation speed, rotation amplitude, vibration frequency, vibration amplitude or operation voltage duty ratio, operation voltage, and the like.
In some exemplary embodiments, the load-related parameter of the motor is current, i.e. motor current;
obtaining a load-related parameter of a motor in an electric toothbrush, comprising:
and acquiring a voltage difference on a sampling resistor connected with the motor in parallel in the electric toothbrush, and determining current according to the voltage difference.
In some exemplary embodiments, the load-related parameter of the electric machine is current;
step 201 includes: detecting a motor current in the electric toothbrush;
step 202 then comprises: when the detected motor current is larger than a preset first current threshold value, determining that the target working mode is a normal working mode;
when the detected motor current is smaller than a preset second current threshold value, determining that the target working mode is a splash-proof mode;
wherein the first current threshold is greater than the second current threshold.
It can be seen that when the electric toothbrush is not pressed on teeth, the working current of the motor is small because the motor is not influenced by the pressure from the teeth, and at the moment, the motor keeps working in a splash-proof mode, has low frequency and low swing amplitude, and can not splash toothpaste and water. When the electric toothbrush is pressed on teeth, the working current of the motor is obviously increased due to the influence of the pressure from the teeth, and the motor is controlled to enter a normal working mode to work according to the tooth brushing function selected by a user.
In some exemplary embodiments, when a preset trigger detection condition is met, step 201 is executed; the preset trigger detection conditions include: the set detection time comes; alternatively, a preset periodic detection interval comes. Step 201 and step 203 are executed periodically when the preset trigger detection condition is satisfied during the power-on operation of the electric toothbrush. In some exemplary embodiments, the preset periodic detection time interval is set in units of seconds or milliseconds.
In some exemplary embodiments, an electric toothbrush is provided having a sonic vibration motor in a relationship with the head and teeth as shown in fig. 3. The sound wave vibration motor 31 is connected with the brush head 33 through the motor shaft 32, and the sound wave vibration motor 31 drives the motor shaft 32 to vibrate so as to drive the brush head 33 to vibrate, so that the tooth brushing function is completed. When the bristles 34 of the brush head contact the teeth 35, an interactive pressure F1 is generated, and the motor shaft 32 is influenced by the pressure F1 to influence the vibration state thereof, so that the related working parameters of the sonic vibration motor 31 are influenced and changed. F2 in FIG. 3 is the friction force of the toothbrush bristles against the teeth. That is, the operating parameters of these motors change with the change of the motor load during the operation of the motor, which is also referred to as the load-related parameters of the motor.
In some exemplary embodiments, the electric toothbrush further comprises a motor drive circuit and a sampling resistor; the sampling resistor is connected with the motor in series;
when the load related parameters of the motor comprise current, acquiring voltage difference on the sampling resistor, and determining the current of the motor according to the voltage difference; that is, the current is calculated from the voltage difference and the resistance value of the sampling resistor.
In some exemplary embodiments, when the load-related parameter of the motor includes a current, a voltage difference generated across the sampling resistor is obtained, the voltage difference is amplified, and the current of the motor is determined according to the amplified voltage difference.
In some exemplary embodiments, the electric toothbrush shown in fig. 4 includes an amplifying element E connected in parallel with the sampling resistor R for amplifying a voltage difference across the sampling resistor R, and determining the motor current according to the amplified voltage difference.
In some exemplary embodiments, the electric toothbrush further comprises a motor drive circuit and a sampling resistor, a voltage sampling resistor; the sampling resistor is connected with the motor in series, and at the moment, the sampling resistor is also called as a current detection resistor; when the load related parameters of the motor comprise power, acquiring voltage difference on the current detection resistor to obtain motor current, acquiring voltage difference on the voltage sampling resistor to obtain voltage of the motor, and further determining the power of the motor.
In some exemplary embodiments, the electric toothbrush further comprises a motor drive circuit and a sampling resistor; the sampling resistor is connected with the motor in series; and when the load related parameter of the motor comprises the current change rate, detecting the voltage difference on the sampling resistor, and determining the current change rate of the motor according to the change of the voltage difference.
It can be seen that the embodiments of the present disclosure provide a control scheme for an electric toothbrush that greatly reduces the cost of the product by focusing on the influence of the pressure on the operating parameters (load-related parameters) of the motor itself through the motor shaft when the teeth contact the brush head, without introducing a pressure sensor or component, by using the existing components/devices (e.g., resistors) in the electric toothbrush, or only adding a low-cost device (e.g., resistor or amplifier). Simultaneously, compare in relevant technical scheme, through the direct pressure detection of pressure detection subassembly, the testing result uniformity based on motor load relevant parameter is higher, and is lower relatively to detection circuitry's structural requirement, has promoted the accuracy of detection and control, has wholly promoted the uniformity and the stability of product.
In some exemplary embodiments, the electric toothbrush further comprises a motor drive circuit and a position sensor for detecting a brushhead oscillation position to determine a rotational amplitude; when the rotation amplitude of the motor changes, corresponding information can be obtained through the position sensor.
Example two
In some exemplary embodiments, a method for controlling an electric toothbrush is provided, for example, by detecting a motor current, which is an operating parameter of a motor.
In this embodiment, as shown in fig. 4, Q2 to Q5 are switching devices of a driving circuit of the sonic vibration motor, M is the sonic vibration motor, and R is a motor current sampling resistor. When the electric toothbrush works, along with the change of the load of the motor, the current of the motor can generate a weak voltage difference on the sampling resistor R, the voltage sends a signal to the processing chip MCU of the electric toothbrush through the amplifying element E, and the current of the sound wave vibration motor at the moment is obtained through signal analysis. The weak pressure difference generated on the sampling resistor R is amplified by adopting an amplifying element, so that the problem of poor precision caused by low resolution after signal sampling is too small can be avoided.
The relationship between the current of the sonic vibration motor and the target operation mode of the electric toothbrush requires data collection and analysis by experiments in advance to accurately determine the "current-operation mode" correspondence or different current ranges corresponding to different operation modes that are required in the final control method. The "current-operating mode" correspondence used in the control method shown in fig. 5 is:
motor current > current threshold 1(I1): normal brushing mode;
motor current < current threshold 2(I2), splash prevention mode;
current threshold 1(I1) > current threshold 2 (I2).
In some exemplary embodiments, different corresponding relationships may be determined for users of different ages, sexes, and geographical ranges, respectively, so that the related threshold or range of the motor current of the electric toothbrush more conforms to the characteristics of the users. For example, for a children's style electric toothbrush, the current threshold 1 may be adjusted down.
In some exemplary embodiments, different corresponding relationships may need to be determined for different structures and circuit designs of the electric toothbrush, so that the related threshold or range of the motor current of the electric toothbrush better fits the characteristics of different users. For example, current thresholds 1 and 2 may be adjusted down, or current thresholds 1 and 2 may be adjusted up.
The control process of the electric toothbrush, as shown in fig. 5, includes:
step 501, initializing the toothbrush to be in a splash-proof mode;
step 502, collecting motor current;
step 503, judging whether the motor current is larger than a current threshold value 1;
step 504, entering a normal tooth brushing mode;
step 505, collecting motor current;
step 506, judging whether the motor current is smaller than a current threshold value 2;
and step 507, entering a splash prevention mode.
The profile of the motor current detected throughout the brushing session is shown in figure 6. Before the electric toothbrush is started (0-t 1 time), the current of the motor is 0; at time t 1-t 2, the electric toothbrush is started, the motor is set to work in the anti-splashing mode, the motor is low in frequency and duty ratio, and the current is very small; at t 2-t 3, toothpaste is squeezed on the bristles, and the current of the motor is microliter; at time t 3-t 4, the electric toothbrush is placed on teeth, the motor current is obviously increased due to certain pressure, the detected current value of the motor is larger than the current threshold value 1, the electric toothbrush enters a user selection mode to work, the frequency is increased, the working voltage duty ratio is increased, and the motor current is increased again; at time t4-t5, the user brushes his teeth normally; at time t 5-t 6, after the user brushes the teeth, the toothbrush leaves the teeth, the motor current is reduced, and when the motor current is less than the current threshold 2 (the threshold 2 is less than the threshold 1), the working mode of the motor is adjusted to be the anti-splashing mode; after t6 the electric toothbrush is turned off and the motor current is reduced to 0.
In some exemplary embodiments, as shown in fig. 5, when the step 503 determines that the current is not greater than the current threshold 1, the step 502 is executed again when the next detection time comes. That is, the initial splash-proof mode is maintained when the toothbrush is not in contact with the teeth.
In some exemplary embodiments, as shown in fig. 5, when the step 506 determines that the current is not less than the current threshold 2, the step 505 is executed again when the next detection time comes. I.e. the toothbrush is not moved away from the teeth, and the normal mode of operation is continued while brushing.
In some exemplary embodiments, as shown in FIG. 5, after step 507, when the next detection time comes, step 502 is performed again. That is, if the toothbrush contacts the teeth again after leaving the teeth, the normal operation mode can be entered again.
According to the control scheme of the electric toothbrush provided by the embodiment of the disclosure, when the electric toothbrush is not pressed on teeth, the motor is not influenced by pressure from the teeth, the working current of the motor is small, the anti-splashing mode is kept to work at the moment, the low-frequency swing amplitude is low, and toothpaste and water cannot splash. When the electric toothbrush is pressed on teeth, the working current of the motor is obviously increased because the motor is influenced by the pressure from the teeth, and at the moment, the motor is controlled to enter a tooth brushing functional mode set by a user to start normal tooth brushing.
The electric toothbrush anti-splashing scheme based on the motor current detection provided by the embodiment of the disclosure can be seen, the pressure detection assembly is not additionally arranged, the structural design is not required to be greatly adjusted, and the electric toothbrush anti-splashing scheme has very obvious cost advantage. Through motor current detection, structural design is simple, and discerns the accuracy and is not influenced by structural difference, and the performance is more stable.
EXAMPLE III
The disclosed embodiment provides a method for controlling an electric toothbrush, as shown in fig. 7, including:
step 701, starting the electric toothbrush, and operating according to a preset initial working mode;
step 702, detecting load related parameters of a motor;
703, determining a target working mode of the electric toothbrush according to the detected load related parameters of the motor;
step 704, operating according to a target working mode;
step 705, wait for the next detection time to come.
The load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor, and at least comprise one of the following parameters: current, power, rate of change of current, and amplitude of rotation.
In some exemplary embodiments, determining a target operating mode of the electric toothbrush based on detecting a load-related parameter of the motor comprises:
and determining a target working mode according to a preset parameter-working mode corresponding relation and the detected load related parameters of the motor.
In some exemplary embodiments, the target operating mode includes: normal tooth brushing mode, splash-proof mode.
In some exemplary embodiments, the initial operating mode is a splash-guard mode.
Example four
The disclosed embodiment provides an electric toothbrush, the structure of which is shown in fig. 8, comprising: the controller 801, the motor 802, the motor driving circuit 803 and the motor working signal acquisition circuit 804;
the motor working signal acquisition circuit 804 is configured to acquire a motor working signal; wherein the motor operating signal is a signal for determining a load-related parameter of the motor 802;
the controller 801 is configured to determine load-related parameters of the corresponding motor according to the motor operating signal; determining a target operating mode of the electric toothbrush according to the load-related parameters of the motor; is configured to control the electric toothbrush to operate in accordance with the determined target operating mode by controlling the motor drive circuit 803;
the load related parameters of the motor are motor working parameters which change along with the change of the load in the operation of the motor.
In some exemplary embodiments, the controller 801 is an MCU (micro controller Unit).
In some exemplary embodiments, the motor 802 is a sonic vibration motor.
In some exemplary embodiments, the motor drive circuit 803 includes switching devices such as Q2-Q5 shown in FIG. 4. The controller 801 controls the motor 802 to operate in different target operation modes by controlling the switching devices.
In some exemplary embodiments, for the motor working signal to be obtained, it may be determined according to a load-related parameter to be obtained, for example, if the load-related parameter to be obtained is a current, the motor working signal to be obtained is a voltage difference signal on the sampling resistor R as shown in fig. 4; alternatively, other operating signals may be selected by one skilled in the art based on examples of this aspect, and are not limited to the voltage difference signals exemplified by the embodiments of the disclosure. The acquired working signal is a signal related to the working state of the motor, and when the brush head is in contact with teeth to generate pressure change, namely the load of the motor is changed, the working signal of the motor is changed; the working signal itself, or after further analysis and conversion of the working signal, is used as a quantifiable load-related parameter for further determining a corresponding target working mode.
In some exemplary embodiments, the motor operating signal acquisition circuit 804 includes a sampling resistor R connected in series with the motor 802;
the motor working signal acquiring circuit 804 is configured to acquire a voltage difference signal on the sampling resistor R and output the voltage difference signal to the controller 801;
the controller 801 is arranged to determine the current of the motor from the input voltage difference signal.
In some exemplary embodiments, the motor operation signal acquisition circuit 804 further includes an amplifying element E;
the amplifying element E is connected with the sampling resistor R in parallel and is used for amplifying the voltage difference signal on the sampling resistor R;
the motor working signal acquisition circuit 804 is also configured to output the amplified voltage difference signal to the controller 801;
the controller 801 is arranged to determine the current of the motor from the input amplified voltage difference signal.
In some exemplary embodiments, an electric toothbrush, as shown in fig. 9, further comprises: motor shaft 805 and brushhead 806; the motor 802 is connected to the brushhead 806 via the motor shaft 805. The pressure generated by the brushhead 806 contacting the teeth is transmitted to the motor 802 through the motor shaft 805, causing the load on the motor 802 to change during operation, which in turn causes changes in the relevant operating parameters.
EXAMPLE five
The disclosed embodiment also provides a control device of an electric toothbrush, as shown in fig. 10, including,
an obtaining module 1001 configured to obtain load related parameters of a motor in the electric toothbrush;
the control module 1002 is configured to determine a target working mode of the electric toothbrush according to the obtained load-related parameters of the motor; controlling the electric toothbrush to operate in accordance with the determined target operating mode;
the load related parameters of the motor are motor working parameters which change along with the change of the load in the operation of the motor.
In some exemplary embodiments, the load-related parameter of the electric machine comprises at least one of: current, power, rate of change of current, and amplitude of rotation.
In some exemplary embodiments, the control module 1002 is configured to determine the target working mode according to a preset parameter-working mode corresponding relationship according to the obtained load related parameter of the motor;
the preset parameter-working mode corresponding relation comprises: and corresponding relation between different load related parameter ranges and different working modes.
In some exemplary embodiments, the control module 1002 is further configured to, after being powered on, first control the electric toothbrush to initially operate in the splash-proof mode.
In some exemplary embodiments, the obtaining module 1001 is configured to obtain a voltage difference across a sampling resistor in the electric toothbrush in parallel with the motor, and determine the current based on the voltage difference.
In some exemplary embodiments, the electric toothbrush includes a sampling resistor in series with the motor; when the load related parameter of the motor includes a current, the obtaining module 1001 is configured to obtain a voltage difference across the sampling resistor, and determine the current of the motor according to the voltage difference.
In some exemplary embodiments, the electric toothbrush further comprises an amplifying element connected in parallel with the sampling resistor; when the load related parameter of the motor includes a current, the obtaining module 1001 is configured to obtain the amplified voltage difference signal generated on the sampling resistor, and determine the current of the motor according to the amplified voltage difference signal.
The disclosed embodiments also provide an electronic device comprising a memory in which a computer program for controlling an electric toothbrush is stored and a processor configured to read and execute the computer program for controlling an electric toothbrush to perform the method according to any of the above embodiments.
The disclosed embodiments also provide a storage medium having a computer program stored therein, wherein the computer program is configured to execute the method of controlling an electric toothbrush according to any of the above embodiments when running.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (10)
1. A method for controlling an electric toothbrush, comprising,
acquiring load related parameters of a motor in the electric toothbrush;
determining a target working mode of the electric toothbrush according to the acquired load related parameters of the motor;
controlling the electric toothbrush to operate according to the determined target operating mode;
the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor.
2. The control method according to claim 1,
the target operating mode includes: normal tooth brushing mode, splash-proof mode;
before obtaining the load-related parameter of the motor in the electric toothbrush, the method further comprises:
and after the electric toothbrush is started, controlling the electric toothbrush to initially operate in a splash-proof mode.
3. The control method according to claim 1 or 2,
the load-related parameter of the electrical machine comprises at least one of: current, power, rate of change of current, and amplitude of rotation.
4. The control method according to claim 3,
the determining the target working mode of the electric toothbrush according to the obtained load-related parameters of the motor comprises:
determining the target working mode according to the obtained load-related parameters of the motor and a preset parameter-working mode corresponding relation;
the preset parameter-working mode corresponding relation comprises: and corresponding relation between different load-related parameter ranges and different target working modes.
5. The control method according to claim 1 or 2,
the load-related parameters of the motor include: current;
the acquiring of the load related parameter of the motor in the electric toothbrush comprises:
and acquiring a voltage difference on a sampling resistor connected with the motor in parallel in the electric toothbrush, and determining the current according to the voltage difference.
6. The control method according to claim 2,
the load-related parameters of the motor include: current flow;
the determining the target working mode of the electric toothbrush according to the obtained load-related parameters of the motor comprises:
when the acquired current of the motor is larger than a preset first current threshold value, determining that the target working mode is a normal working mode;
when the obtained current of the motor is smaller than a preset second current threshold value, determining that the target working mode is a splash-proof mode;
wherein the first current threshold is greater than the second current threshold.
7. A control device for an electric toothbrush, comprising,
an acquisition module configured to acquire load related parameters of a motor in the electric toothbrush;
the control module is set to determine a target working mode of the electric toothbrush according to the acquired load related parameters of the motor; controlling the electric toothbrush to operate in accordance with the determined target operating mode;
the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor.
8. An electric toothbrush, which is characterized by comprising,
the device comprises a controller, a motor driving circuit and a motor working signal acquisition circuit;
the motor working signal acquisition circuit is arranged to acquire a motor working signal; the motor working signal is a signal used for determining a load related parameter of the motor;
the controller is set to determine the load related parameters of the corresponding motor according to the motor working signals; determining a target operating mode of the electric toothbrush according to the load-related parameters of the motor; the electric toothbrush is controlled to operate according to the determined target working mode through the motor driving circuit;
the load related parameters of the motor are motor working parameters which change along with the change of the motor load in the running process of the motor.
9. The electric toothbrush of claim 8,
the load-related parameters of the motor include: current flow;
the motor working signal acquisition circuit comprises a sampling resistor and an amplifying element;
the sampling resistor is connected with the motor in series;
the amplifying element is connected with the sampling resistor in parallel and is arranged for amplifying the voltage difference signal on the sampling resistor;
the motor working signal acquisition circuit is arranged to output the amplified voltage difference signal to the controller;
the controller is configured to determine a current of the motor based on the input amplified voltage difference signal.
10. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 6 when executed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110287875.4A CN115105238A (en) | 2021-03-17 | 2021-03-17 | Electric toothbrush control method and device, storage medium and electric toothbrush |
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| CN202110287875.4A CN115105238A (en) | 2021-03-17 | 2021-03-17 | Electric toothbrush control method and device, storage medium and electric toothbrush |
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| CN115105238A true CN115105238A (en) | 2022-09-27 |
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| CN202110287875.4A Pending CN115105238A (en) | 2021-03-17 | 2021-03-17 | Electric toothbrush control method and device, storage medium and electric toothbrush |
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Cited By (1)
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| CN117614315A (en) * | 2022-12-30 | 2024-02-27 | 广州星际悦动股份有限公司 | Motor control method, motor control device, electronic equipment and storage medium |
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