Oral care device and oral care device control method

Abstract

The embodiment of the invention provides oral care equipment and an oral care equipment control method, the oral care equipment comprises a main machine, the main machine comprises a fluid storage device, a power assembly and a control assembly, the power assembly is electrically connected with the control assembly, the power assembly is in fluid communication with the fluid storage device, and the power assembly comprises a motor; the control assembly is used for acquiring the current voltage value of the motor; comparing the current voltage value with a preset voltage value of the motor in the current working mode to obtain a comparison result; according to the comparison result, the current duty ratio is adjusted; and voltage control is carried out on the oral care equipment by adjusting the current duty ratio. The current voltage value of the motor is monitored through the control assembly, and the current duty ratio is adjusted according to the current voltage value and the preset voltage value of the motor in the current working mode, so that the voltage of the oral care equipment is controlled, the dynamic stability of the voltage of the motor is realized, and the working stability of the oral care equipment is improved.

Description

Technical Field

[0001] The embodiments of the present specification relate to the field of oral care technology, and more particularly to oral care equipment and an oral care equipment control method. Background Art

[0002] At present, when controlling the water pressure of oral care equipment, the voltage can be divided into different levels, and a duty cycle is set for each level. When the duty cycle changes, the voltage changes accordingly, so that the duty cycle setting is used to control the voltage to achieve the purpose of stabilizing the water pressure. The duty cycle refers to the ratio of the duration of the high level or conduction state to the entire cycle time in a periodic signal.

[0003] However, in the above scheme, the voltage is a variable data that fluctuates up and down, causing the water pressure of the oral care device to fluctuate up and down, further resulting in poor working stability of the oral care device. Therefore, a control method for an oral care device with high stability is urgently needed. Summary of the invention

[0004] In view of this, an embodiment of this specification provides an oral care device. One or more embodiments of this specification also relate to an oral care device control method and an oral care device control device to solve the technical defects existing in the prior art.

[0005] According to a first aspect of an embodiment of the present specification, there is provided an oral care device, comprising a host, the host comprising a fluid reservoir, a power assembly and a control assembly, the power assembly being electrically connected to the control assembly, the power assembly being in fluid communication with the fluid reservoir, and the power assembly comprising a motor;

[0006] A control component is used to obtain the current voltage value of the motor; compare the current voltage value with the preset voltage value of the motor in the current working mode to obtain a comparison result; adjust the current duty cycle according to the comparison result; and control the voltage of the oral care device by adjusting the current duty cycle.

[0007] According to a second aspect of the embodiments of the present specification, a method for controlling an oral care device is provided, which is applied to a control component in the oral care device, wherein the oral care device includes a host, the host includes a fluid reservoir, a power component and a control component, the power component is electrically connected to the control component, the power component is fluidically connected to the fluid reservoir, and the power component includes a motor; the method for controlling the oral care device includes:

[0008] Get the current voltage value of the motor;

[0009] Compare the current voltage value with the preset voltage value of the motor in the current working mode to obtain a comparison result;

[0010] According to the comparison result, the current duty cycle is adjusted;

[0011] The voltage of the oral care device is controlled by adjusting the current duty cycle.

[0012] According to a third aspect of the embodiments of the present specification, there is provided an oral care device control device, which is applied to a control component in an oral care device, wherein the oral care device comprises a host, the host comprises a fluid reservoir, a power component and a control component, the power component is electrically connected to the control component, the power component is fluidically connected to the fluid reservoir, and the power component comprises a motor; the oral care device control device comprises:

[0013] An acquisition module is configured to acquire a current voltage value of the motor;

[0014] A comparison module is configured to compare the current voltage value with a preset voltage value of the motor in the current working mode to obtain a comparison result;

[0015] An adjustment module is configured to adjust the current duty cycle according to the comparison result;

[0016] The control module is configured to perform voltage control on the oral care device by adjusting the current duty cycle.

[0017] An oral care device provided in one embodiment of the present specification includes a host, the host includes a fluid storage device, a power component and a control component, the power component is electrically connected to the control component, the power component is in fluid communication with the fluid storage device, and the power component includes a motor; a control component is used to obtain the current voltage value of the motor; compare the current voltage value with the preset voltage value of the motor in the current working mode to obtain a comparison result; according to the comparison result, adjust the current duty cycle; and control the voltage of the oral care device by adjusting the current duty cycle. The current voltage value of the motor is monitored by the control component, and the current duty cycle is adjusted according to the current voltage value and the preset voltage value of the motor in the current working mode, so as to control the voltage of the oral care device, realize the dynamic stability of the motor voltage, and improve the working stability of the oral care device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an oral care device provided by an embodiment of this specification;

[0019] Figure 2 is a flow chart of a method for controlling an oral care device provided by one embodiment of this specification;

[0020] Figure 3 is a process flow chart of a method for controlling an oral care device provided in one embodiment of the present specification;

[0021] Figure 4 It is a structural schematic diagram of an oral care equipment control device provided in one embodiment of this specification. DETAILED DESCRIPTION

[0022] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.

[0023] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a", "said" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0024] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0025] First, the terms involved in one or more embodiments of this specification are explained.

[0026] Microcontroller Unit (MCU): It is a microcomputer system on a single chip that integrates a central processing unit (CPU), memory, timer / counter, multiple input / output interfaces (I nput / Output) and other peripheral functions. In electronic devices and embedded systems, MCU plays the role of core control, responsible for processing data calculation, logic control, signal processing and communication with peripheral devices in the system. MCU includes a hardware unit that can generate pulse width modulation (PWM) signals, which can be called a PWM module.

[0027] The voltage stabilization technology for oral care equipment on the market achieves the purpose of voltage stabilization by dividing the battery voltage into 10 levels, each level corresponding to a duty cycle. However, the above voltage stabilization method is relatively rough. Since there is no feedback circuit in the oral care equipment, the motor voltage fluctuates greatly, resulting in unstable fluid pressure of the oral care equipment.

[0028] In order to solve the above problems, in the embodiments of the present specification, a motor voltage feedback circuit is added to the oral care device to monitor the motor voltage, and the current duty cycle is adjusted through a voltage stabilization algorithm to achieve dynamic stabilization of the motor voltage, so that the pressure of the fluid in the oral care device will not change suddenly with the battery voltage fluctuation, thereby improving the working stability of the oral care device.

[0029] In this specification, an oral care device is provided. This specification also relates to an oral care device control method and an oral care device control device, which are described in detail one by one in the following embodiments.

[0030] See also Figure 1 , Figure 1 The structure diagram of an oral care device provided by an embodiment of the present specification is shown, the oral care device includes a host 102, the host 102 includes a fluid reservoir 1022, a power component 1024 and a control component 1026, the power component 1024 is electrically connected to the control component 1026, the power component 1024 is in fluid communication with the fluid reservoir 1022, and the power component 1024 includes a motor 10242;

[0031] The control component 1026 is used to obtain the current voltage value of the motor 10242; compare the current voltage value with the preset voltage value of the motor in the current working mode to obtain a comparison result; adjust the current duty cycle according to the comparison result; and control the voltage of the oral care device by adjusting the current duty cycle.

[0032] Specifically, oral care equipment refers to various appliances and tools used to maintain and promote oral hygiene, prevent oral diseases, and assist in oral treatment. Oral care equipment can be divided into different types based on their functions, such as oral cleaning equipment and oral treatment equipment. Oral cleaning equipment includes but is not limited to electric toothbrushes, mouthwash dispensers, irrigators, and integrated irrigating devices.

[0033] The host refers to the control unit or power source that is the core part of the oral care device. The host is used to provide the oral care device with the necessary energy (such as electricity) and / or control signals to drive the oral care device to complete the corresponding operations. For example, in an electric toothbrush, the host has a built-in motor and battery, and sometimes also includes an intelligent control system. The motor drives the brush head to vibrate or rotate, and the battery provides power to the motor. The intelligent control system may include a timer, pressure sensor, etc. to enhance the brushing experience and effect. For another example, in a water flosser, the host has a built-in fluid reservoir (such as a water tank), a pump and a battery. The pump draws the fluid (such as water) from the fluid reservoir and pressurizes it to form an impact fluid, which is flushed through the fluid outlet (such as a nozzle) to flush the gaps between the teeth.

[0034] A fluid reservoir is a container or storage component used to store or store fluids (such as water, mouthwash, cleaning solution or other oral care fluids). The fluid reservoir is used to ensure that the device can continuously or on demand provide fluids during use to assist in completing various oral cleaning or treatment functions.

[0035] The power assembly can provide the necessary power source for the oral care device to ensure that the oral care device can perform its intended functions, such as cleaning, massage, etc. The power assembly can include a motor and a pump assembly that drives the fluid.

[0036] The control component refers to the microcontroller unit in the oral care device. The electric motor in the oral care device is usually a small DC motor, which converts electrical energy into mechanical energy to drive the internal pump body to work. In order to be easy to carry and use wirelessly, the oral care device is usually equipped with a built-in power supply (such as a battery, an adapter). Battery types include but are not limited to lithium-ion batteries and nickel-metal hydride batteries. The function of the battery is to store electrical energy and power the motor and other electronic components (such as control circuits). In an optional embodiment of the present specification, since the capacity, life and charging efficiency of the battery are all important factors affecting the endurance and user experience of the oral care device, the battery storage capacity may decrease with the increase of years of use. The user can replace the battery by himself or charge it frequently to extend the service life of the oral care device. Therefore, the battery can be a replaceable rechargeable battery.

[0037] The current voltage value of the motor can be called the motor voltage value, and the current voltage value of the motor can be determined based on the input voltage value of the power supply and the negative voltage value of the motor. Specifically, the positive voltage value of the motor is equal to the input voltage value of the power supply, and the current voltage value of the motor can be obtained by subtracting the negative voltage value of the motor from the input voltage value of the power supply. The current working mode can be understood as the current working gear value of the oral care device. The oral care device is provided with different working gears, and different working gears correspond to different fluid pressures to provide a variety of oral care intensities for users to choose from. The preset voltage value of the motor in the current working mode refers to the motor voltage value of the oral care device working in the current working mode. The preset voltage value is set according to the actual situation. The preset voltage value may include the corresponding input voltage and duty cycle. The embodiments of this specification do not impose any restrictions on this.

[0038] The comparison result is used to describe whether the current voltage value is larger or smaller than the preset voltage value of the motor in the current working mode. The duty cycle refers to the ratio of the time the oral care device is in working state (such as the motor is powered on) to the entire working cycle in a periodic pulse system. The current duty cycle can be queried from the configuration file of the oral care device.

[0039] It should be noted that, according to the comparison results, the process of adjusting the current duty cycle is a dynamic adjustment process. The control component dynamically adjusts the current duty cycle based on the current voltage value and the preset voltage value of the motor in the current working mode to obtain a more appropriate target duty cycle, so that the current voltage value tends to the preset voltage value or is adjusted to the preset voltage value, so that the fluid pressure conforms to the preset fluid pressure of the current working mode, wherein the current duty cycle can be adjusted based on a preset deviation range during dynamic adjustment, and the preset deviation range can be configured based on the motor attribute information. The preset deviation range and the number of adjustments are specifically set according to the actual situation, and the embodiments of this specification do not impose any restrictions on this. By adjusting the current duty cycle, energy consumption can be effectively managed and motor efficiency can be optimized, especially when the battery power is reduced, the stable operation of the equipment is maintained, or when the adapter voltage is deviated, the consistency of the fluid pressure in the set working mode is controlled.

[0040] Furthermore, the control component can adjust the voltage supplied to the motor by adjusting the current duty cycle, thereby achieving fine control of the entire oral care device. Specifically, the control component can adjust the current duty cycle to the target duty cycle, write the target duty cycle into the corresponding register of the control component, and achieve voltage control by configuring the duty cycle. This ensures that the oral care device can work efficiently and stably in different working modes.

[0041] In one possible implementation of the present specification, the current voltage value can be compared with the preset voltage value of the motor in the current working mode to obtain a comparison result. In another possible implementation of the present specification, since the input voltage value of the power supply is constant, the negative pole voltage value of the motor can be compared with the preset voltage value of the motor in the current working mode to obtain a comparison result.

[0042] By applying the solution of the embodiments of this specification, the current voltage value of the motor is monitored through the control component, and the current duty cycle is adjusted according to the current voltage value and the preset voltage value of the motor in the current working mode, so as to control the voltage of the oral care device, achieve the purpose of dynamic balance of the motor voltage, and improve the working stability of the oral care device.

[0043] In an optional embodiment of the present specification, the control component is also used to reduce the current duty cycle when the current voltage value is greater than the preset voltage value; or increase the current duty cycle when the current voltage value is less than the preset voltage value.

[0044] It should be noted that, when the current voltage value is greater than the preset voltage value, the voltage control of the oral care device can be achieved by reducing the current duty cycle. Reducing the current duty cycle means reducing the time when the PWM module of the oral care device MCU outputs a high level, which can reduce the time for energy to be transmitted to the load, thereby reducing the output voltage. When the current voltage value is less than the preset voltage value, the voltage control of the oral care device can be achieved by increasing the current duty cycle. Increasing the current duty cycle means increasing the time when the PWM module of the oral care device MCU outputs a high level, which can increase the time for energy to be transmitted to the load, thereby increasing the output voltage.

[0045] By applying the solution of the embodiments of this specification, by comparing the current voltage value with the preset voltage value, the current duty cycle is adjusted according to the comparison result, thereby achieving efficient voltage control of the oral care device.

[0046] In an optional embodiment of the present specification, the control component is also used to obtain a current deviation value based on a current voltage value and a preset voltage value; compare the current deviation value with a preset deviation range to obtain a comparison result; and adjust the current duty cycle based on the comparison result.

[0047] Specifically, the current deviation value is the absolute value of the difference between the current voltage value of the motor and the preset voltage value. The preset deviation range refers to the deviation range between the preset current voltage value and the preset voltage value. When the deviation range is preset, in one possible implementation, an upper deviation limit value and a lower deviation limit value may be set, and the boundary of the deviation range may be defined by the upper deviation limit value and the lower deviation limit value. In another possible implementation, only the upper deviation limit value may be set, and the upper deviation limit value at this time may be understood as a deviation threshold value. In this case, the boundaries of the deviation range are 0 and the upper deviation limit value, respectively. The preset deviation range is selected according to the actual situation, and the embodiments of this specification do not impose any restrictions on this.

[0048] It should be noted that, by comparing the current deviation value with the preset deviation range, the comparison result obtained may be that the current deviation value is within the deviation range, the current deviation value is greater than the deviation range, or the current deviation value is less than the deviation range.

[0049] By applying the solution of the embodiment of this specification, by comparing the current deviation value with the preset deviation range, the current duty cycle is adjusted according to the comparison result, so that the increase or decrease of the current duty cycle changes according to the change of the comparison result, thereby achieving the purpose of dynamic voltage balance.

[0050] In an optional embodiment of the present specification, the control component is further used to adjust the current duty cycle according to the first adjustment value when the current deviation value is within the deviation range;

[0051] And / or, the control component is further used to adjust the current duty cycle according to the second adjustment value when the current deviation value is greater than a first threshold value of the deviation range;

[0052] The first adjustment value is smaller than the second adjustment value.

[0053] It should be noted that when the current deviation value is within the deviation range, it means that the deviation between the current voltage value and the preset voltage value is small. At this time, the current duty cycle can be gradually adjusted with a smaller first adjustment value to gradually correct the voltage of the oral care device. In addition, when adjusting the current duty cycle, it is gradually adjusted according to the first adjustment value, rather than directly adjusting the current voltage value to the preset voltage value, so that the current voltage value can gradually approach the preset voltage value to avoid voltage mutation.

[0054] When the current deviation value is greater than the first threshold of the deviation range, it means that the deviation between the current voltage value and the preset voltage value is large. At this time, the current duty cycle can be gradually adjusted with a larger second adjustment value to gradually correct the voltage of the oral care device, thereby avoiding the use of a smaller first adjustment value that takes a long time to correct the voltage of the oral care device, thereby improving the efficiency of voltage dynamic balance. In addition, when adjusting the current duty cycle, it is gradually adjusted according to the second adjustment value, rather than directly adjusting the current voltage value to the preset voltage value, so that the current voltage value can gradually approach the preset voltage value to avoid voltage mutations. When the motor voltage differs greatly from the target voltage, the response or change speed is fast; when the difference is small, the change is accurate or stable. Among them, the first threshold value can be the upper limit value of the deviation.

[0055] In the case where the current deviation value is less than the deviation range, in one possible implementation, the current duty cycle can be adjusted so that the current voltage value approaches the preset voltage value. In another possible implementation, when the current deviation value is less than the second threshold value of the deviation range, it means that the current deviation value is very small, the current voltage value is very close to the preset voltage value, and the current deviation value is within the allowable deviation range. At this time, the current duty cycle may not be adjusted, thereby avoiding the problem of frequent voltage adjustment leading to a decrease in power conversion efficiency, that is, the control component is also used to not adjust the current duty cycle when the current deviation value is less than the second threshold value of the deviation range. Among them, the second threshold value is set specifically according to the actual situation, and the embodiments of this specification do not make any restrictions on this. Among them, the second threshold value may be a lower limit value of the deviation.

[0056] For example, assuming that the preset voltage value is 9.1V, the current voltage value of the motor is 2V, and the motor voltage change is triggered every x milliseconds, where x is specifically set according to the actual situation. According to the current voltage value 2V and the preset voltage value 9.1V, it can be determined that the current deviation value is 7.1V, and the current deviation value 7.1V is greater than the first threshold value 2V of the deviation range. At this time, the current voltage value can be gradually adjusted according to the larger second adjustment value 1V. When the current voltage value increases to 8V with a change unit of 1V, the current deviation value can be determined to be 1.1V according to the current voltage value 8V and the preset voltage value 9.1V. The current deviation value 1.1V is within the deviation range of 0.2V-2V. At this time, the current voltage value 8V can be gradually adjusted according to the smaller first adjustment value 0.2V. When the current voltage value 8V increases to 9V with a change unit of 0.2V, the current deviation value can be determined to be 0.1V according to the current voltage value 9V and the preset voltage value 9.1V. The current deviation value 0.1V is less than the second threshold value 0.2V, so the current voltage value is no longer adjusted.

[0057] In an optional embodiment of the present specification, the control component is further used to obtain a first difference value when it is determined according to the comparison result that the current voltage value is greater than the preset voltage value, wherein the first difference value is obtained by subtracting the preset voltage value from the current voltage value;

[0058] It is also used to obtain a target duty cycle when the first difference is greater than a first threshold, wherein the target duty cycle is the current duty cycle minus a second adjustment value; and to obtain a target duty cycle when the first difference is less than the first threshold, wherein the target duty cycle is the current duty cycle minus the first adjustment value.

[0059] It should be noted that if the current voltage value is greater than the preset voltage value, the first difference is equal to the current voltage value minus the preset voltage value. After obtaining the first difference, the magnitude relationship between the first difference and the first threshold is determined, wherein the first threshold is set specifically according to the actual situation, and the embodiments of this specification do not impose any restrictions on this. If the first difference is greater than the first threshold, the current duty cycle is reduced by a larger amplitude (larger than the reduction amplitude when the first difference is less than the first threshold); if the first difference is less than the first threshold, the current duty cycle is reduced by a smaller amplitude (smaller than the reduction amplitude when the first difference is greater than the first threshold). Among them, the specific adjustment amplitude of the current duty cycle is selected according to the actual situation, and the embodiments of this specification do not impose any restrictions on this. For example, when the first difference is greater than the first threshold, when obtaining the target duty cycle, the target duty cycle can be obtained by subtracting the second adjustment value from the current duty cycle, and the current duty cycle can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value; when the first difference is less than the first threshold, when obtaining the target duty cycle, the target duty cycle can be obtained by subtracting the first adjustment value from the current duty cycle, and the current duty cycle can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value.

[0060] In actual applications, when the first difference is equal to the first threshold, when obtaining the target duty cycle, the target duty cycle can be obtained by subtracting the second adjustment value from the current duty cycle, and the current duty can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value. The target duty cycle can also be obtained by subtracting the first adjustment value from the current duty cycle, and the current duty can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value. The specific selection depends on the actual situation, and the embodiments of this specification do not impose any limitation on this.

[0061] By applying the scheme of the embodiments of this specification, it is determined whether the first difference is greater than the first threshold value, and the duty cycle change is controlled according to the determination result. If the first difference is greater than the first threshold value, the change amplitude is larger when the current duty cycle is adjusted; if the first difference is less than the first threshold value, the change amplitude is smaller when the current duty cycle is adjusted, thereby ensuring a quick response when the first difference is larger, and maintaining stable operation when the first difference is smaller, making the adjustment of the current duty cycle more flexible and accurate.

[0062] In an optional embodiment of the present specification, the control component is further used to obtain a second difference value when it is determined according to the comparison result that the current voltage value is less than the preset voltage value, and the second difference value is the preset voltage value minus the current voltage value;

[0063] It is also used to obtain a target duty cycle when the second difference is greater than a first threshold, wherein the target duty cycle is the current duty cycle plus a second adjustment value; and to obtain a target duty cycle when the second difference is less than the first threshold, wherein the target duty cycle is the current duty cycle plus a first adjustment value.

[0064] It should be noted that if the current voltage value is less than the preset voltage value, the second difference is equal to the preset voltage value minus the current voltage value. After obtaining the second difference, the magnitude relationship between the second difference and the first threshold value can be determined, wherein the first threshold value is set specifically according to the actual situation, and the embodiments of this specification do not impose any restrictions on this. If the second difference is greater than the first threshold value, the current duty cycle is increased by a larger amplitude (larger than the increase amplitude when the second difference is less than the first threshold value); if the second difference is less than the first threshold value, the current duty cycle is increased by a smaller amplitude (smaller than the increase amplitude when the second difference is greater than the first threshold value). Among them, the specific adjustment amplitude of the current duty cycle is selected according to the actual situation, and the embodiments of this specification do not impose any restrictions on this. For example, when the second difference is greater than the first threshold, when obtaining the target duty cycle, the current duty cycle can be added to the second adjustment value to obtain the target duty cycle, and the current duty can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value; when the second difference is less than the first threshold, when obtaining the target duty cycle, the current duty cycle can be added to the first adjustment value to obtain the target duty cycle, and the current duty can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value.

[0065] In actual applications, when the second difference is equal to the first threshold, when obtaining the target duty cycle, the target duty cycle can be obtained by adding the current duty cycle to the second adjustment value, and the current duty cycle can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value. The target duty cycle can also be obtained by adding the current duty cycle to the first adjustment value, and the current duty cycle can be controlled to be adjusted to the target duty cycle, thereby adjusting the current voltage value to the target voltage value. The specific selection depends on the actual situation, and the embodiments of this specification do not impose any limitation on this.

[0066] By applying the scheme of the embodiments of this specification, it is determined whether the second difference is greater than the first threshold value, and the duty cycle change is controlled according to the determination result. If the second difference is greater than the first threshold value, the current duty cycle changes greatly; if the second difference is less than the first threshold value, the current duty cycle changes less, thereby ensuring a quick response when the second difference is large, and maintaining stable operation when the second difference is small, making the adjustment of the current duty cycle more flexible and accurate.

[0067] In an optional embodiment of the present specification, the power component is used to provide power to transport the fluid from the fluid reservoir to the fluid outlet; the control component is also used to control the voltage of the power component;

[0068] The power assembly is also used to control the pressure of the fluid flowing out of the oral care device based on voltage control so that the pressure conforms to the current working mode of the oral care device.

[0069] It should be noted that after the power component receives the voltage control signal sent by the control component, it can control the pressure of the fluid stored in the fluid reservoir, so that the fluid flows out from the fluid outlet of the oral care device with different impact strengths (power). Generally, the pressure of the fluid is proportional to the preset voltage value of the motor in the current working mode. For example, the greater the preset voltage value of the motor in the current working mode, the greater the pressure of the fluid, and the greater the impact strength when the fluid flows out.

[0070] By applying the solution of the embodiment of this specification, the control component sends a voltage control signal to the power component, and the power component controls the pressure of the fluid based on the voltage control signal, thereby realizing dynamic control of the fluid pressure based on the current working mode of the oral care device, making the operation of the oral care device more stable and controllable.

[0071] In an optional embodiment of the present specification, the control component is also used to obtain motor voltage sampling conditions, wherein the motor voltage sampling conditions include at least one of the motor state being a starting state, the sampling duration satisfying a preset duration threshold, the host state being a working state, and the sampling state being a sampling state; when the motor satisfies the motor voltage sampling conditions, the motor voltage is sampled multiple times to obtain the current voltage value of the motor.

[0072] It should be noted that the motor state includes an off state and a start state. The host state includes a working state and a non-working state. The sampling state includes sampling and pausing sampling, wherein pausing sampling can be understood as data processing. The preset duration threshold is set according to the actual situation, such as 1 millisecond, and the embodiments of this specification do not make any restrictions on this. The method of sampling the motor voltage of the motor includes but is not limited to analog-to-digital conversion sampling (ADC, Analog-to-Digital Conversion Sampling), integrated Hall effect sensor sampling, and differential amplifier sampling, which is selected according to the actual situation, and the embodiments of this specification do not make any restrictions on this.

[0073] In actual applications, when the motor meets the motor voltage sampling conditions, the motor voltage can be sampled multiple times to obtain multiple motor voltage values. The multiple motor voltage values ​​can be averaged to obtain the current voltage value of the motor. For example, when the handle is taken off the host, the host wakes up through the Hall, and the handle short presses the power button to turn on the machine. After powering on, the host will sample the battery voltage every 1 second. If the motor starts working, the timing task of motor voltage sampling will be started, which can be executed every 1 millisecond. The motor voltage will be sampled once in the task, and an average value will be calculated for every 10 samples. Every 10 average values ​​will calculate the current voltage value of a motor. At the same time, the sampling in the task will be paused, and the data will be processed first, and then the sampling will be restarted.

[0074] By applying the solution of the embodiments of this specification, the motor voltage is sampled multiple times when the motor meets the motor voltage sampling conditions to obtain the current voltage value of the motor, thereby avoiding motor voltage sampling when the motor cannot be sampled, reducing resource waste and improving motor voltage sampling efficiency.

[0075] In an optional embodiment of the present specification, the oral care device also includes a power supply, the motor is electrically connected to the power supply, and the control component is also used to obtain the negative pole voltage value of the motor; based on the input voltage value of the power supply and the negative pole voltage value of the motor, the current voltage value of the motor is obtained.

[0076] In practical applications, there are many ways for the control component to obtain the motor negative pole voltage value of the motor, which are selected according to the actual situation, and the embodiments of this specification do not impose any restrictions on this. In one possible implementation of this specification, the control component can directly sample the motor negative pole voltage value. The control component may not be able to sample the motor negative pole voltage value in some cases. Therefore, in another possible implementation of this specification, the motor voltage sampling condition can be obtained before sampling, and when the motor meets the motor voltage sampling condition, the motor negative pole voltage value can be sampled.

[0077] It should be noted that the input voltage of the power supply refers to the power supply voltage supplied to the motor, such as the battery voltage. The input voltage of the power supply can affect the energy that the motor can obtain. The negative pole voltage of the motor can reflect the working state of the motor. When the target duty cycle is obtained, the timed sampling task can be restarted to resample the negative pole voltage value of the motor, and this cycle can be repeated.

[0078] In an optional embodiment of the present specification, the control component is also used to perform motor voltage sampling on the motor multiple times when the motor meets the motor voltage sampling condition, and obtain multiple first voltage sampling values ​​and first sampling count values, wherein the sampling count value is obtained based on the superposition of the sampling times; when the first sampling count value reaches a first preset value, the first sampling count value is cleared, and based on the multiple first voltage sampling values, a second voltage sampling value and a second sampling count value are determined, wherein the second sampling count value is obtained based on the superposition of the clearing times; return to execute the step of performing motor voltage sampling on the motor multiple times to obtain multiple first voltage sampling values ​​and first sampling count values, until the second sampling count value reaches a second preset value, then determine the negative pole voltage value of the motor based on the multiple second voltage sampling values, and adjust the sampling state to pause sampling.

[0079] It should be noted that the method of sampling the motor voltage of the motor multiple times can also be divided into two stages. The first stage: after starting the motor voltage sampling task, the motor voltage sampling function will be called once every 1ms, and the motor voltage sampling and motor voltage averaging functions will be implemented in the function. After entering the motor sampling function, when the motor state is the starting state, the sampling time meets the preset time threshold, the host state is the working state, and the sampling state is sampling, the motor voltage is sampled using the ADC to obtain a first voltage sampling value and a first sampling count value (starting from 1 and adding 1 each time). Return to the step of calling the motor voltage sampling function once every 1ms. When the first sampling count value reaches the first preset value (such as 10), the first sampling count value is cleared to enter the second stage. The second stage: the 10 first voltage sampling values ​​obtained in the first stage are averaged to obtain the second voltage sampling value and the second sampling count value (starting from 1 and adding 1 each time). When the second sampling count value reaches the second preset threshold (such as 10), the second sampling count value is cleared, and the 10 second voltage sampling values ​​are averaged to obtain the negative pole voltage value of the motor. Finally, the sampling state is switched to pause sampling, the sampling of the motor voltage is stopped, and the current duty cycle is adjusted according to the battery voltage value of the battery and the negative pole voltage value of the motor to obtain the target duty cycle.

[0080] By applying the solution of the embodiment of this specification, the motor voltage value is made more accurate through two-stage motor voltage sampling, which lays a good foundation for the subsequent adjustment of the current duty cycle.

[0081] See also Figure 2 , Figure 2 A flowchart of an oral care device control method provided by an embodiment of the present specification is shown. The oral care device control method is applied to a control component in the oral care device. The oral care device includes a host, the host includes a fluid reservoir, a power component and a control component, the power component is electrically connected to the control component, the power component is fluidically connected to the fluid reservoir, and the power component includes a motor; the oral care device control method specifically includes the following steps:

[0082] Step 202: Obtain the current voltage value of the motor.

[0083] Step 204: Compare the current voltage value with a preset voltage value of the motor in the current working mode to obtain a comparison result.

[0084] Step 206: Adjust the current duty cycle according to the comparison result.

[0085] Step 208: Control the voltage of the oral care device by adjusting the current duty cycle.

[0086] It should be noted that the implementation method of step 202 to step 208 is the same as the working process of the control component in the above-mentioned oral care device, and will not be described in detail in the embodiment of this specification.

[0087] By applying the solution of the embodiments of this specification, the current voltage value of the motor is monitored, and the current duty cycle is adjusted according to the current voltage value and the preset voltage value of the motor in the current working mode, so as to control the voltage of the oral care device, achieve the purpose of dynamic balance of the motor voltage, and improve the working stability of the oral care device.

[0088] See also Figure 3 , Figure 3 A process flow chart of a method for controlling an oral care device provided in one embodiment of the present specification is shown, which specifically includes two stages: sampling and data processing;

[0089] Sampling stage: When the oral care device starts to be controlled, since the time for running the motor in the same working mode is different, it is possible to determine whether the motor is started: if not, return to continue to determine whether the motor is started; if so, start the 1ms motor voltage sampling task. After starting the 1ms motor voltage sampling task, determine whether the timing has reached 1ms: if not, return to continue to determine whether the timing has reached 1ms; if so, determine whether the host state is in the working state: if not, return to determine whether the timing has reached 1ms, if so, determine whether the sampling state is sampling: if not, enter the step of "calculating the motor voltage value" in the data processing stage; if so, sample the motor voltage once to obtain the first voltage sampling value, and add one to the first sampling count value. After adding one to the first sampling count value, determine whether the first sampling count value is equal to 10: if not, return to continue to determine whether the timing has reached 1ms; if so, the first sampling count value is cleared, and the 10 first voltage sampling values ​​are averaged to obtain a second voltage sampling value, and the second sampling count value is increased by one. After adding one to the second sampling count value, determine whether the second sampling count value is equal to 10: if not, return to continue to determine whether the timing reaches 1ms; if so, the second sampling count value is cleared, and the 10 second sampling count values ​​are averaged to obtain a motor negative pole voltage value. Finally, switch the sampling state to pause sampling, and return to determine whether the timing reaches 1ms;

[0090] Data processing stage: calculate the current voltage value of the motor (the input voltage value of the power supply - the negative voltage value of the motor), and determine whether the current voltage value is greater than the preset voltage value (the preset voltage value of the motor in the current working mode): if so, calculate the first difference (current voltage value - preset voltage value); if not, calculate the second difference (preset voltage value - current voltage value). After calculating the first difference, determine whether the first difference is greater than the first threshold: if so, adjust the current duty cycle (target duty cycle = current duty cycle - second adjustment value); if not, adjust the current duty cycle (target duty cycle = current duty cycle - first adjustment value), wherein the first adjustment value is less than the second adjustment value. After calculating the second difference, determine whether the second difference is greater than the first threshold: if so, adjust the current duty cycle (target duty cycle = current duty cycle + second adjustment value); if not, adjust the current duty cycle (target duty cycle = current duty cycle + first adjustment value). After adjusting the current duty cycle and obtaining the target duty cycle, the target duty cycle can be written into the corresponding register of the control component, and the sampling state is switched to sampling, and the timing is returned to continue to determine whether it reaches 1ms.

[0091] Corresponding to the above method embodiment, this specification also provides an oral care device control device embodiment, Figure 4 FIG. 1 is a schematic diagram showing a structure of an oral care device control device provided by an embodiment of the present specification. Figure 4As shown, the device is applied to a control component in an oral care device, the oral care device includes a host, the host includes a fluid reservoir, a power component and a control component, the power component is electrically connected to the control component, the power component is fluidically connected to the fluid reservoir, and the power component includes a motor; the oral care device control device includes:

[0092] An acquisition module 402 is configured to acquire a current voltage value of the motor;

[0093] A comparison module 404 is configured to compare the current voltage value with a preset voltage value of the motor in the current working mode to obtain a comparison result;

[0094] The adjustment module 406 is configured to adjust the current duty cycle according to the comparison result;

[0095] The control module 408 is configured to perform voltage control on the oral care device by adjusting the current duty cycle.

[0096] By applying the solution of the embodiments of this specification, the current voltage value of the motor is monitored through the control component, and the current duty cycle is adjusted according to the current voltage value and the preset voltage value of the motor in the current working mode, so as to control the voltage of the oral care device, realize the dynamic stabilization of the motor voltage, and improve the working stability of the oral care device.

[0097] The above is a schematic scheme of an oral care device control device of this embodiment. It should be noted that the technical scheme of the oral care device control device and the technical scheme of the oral care device control method described above belong to the same concept, and the details not described in detail in the technical scheme of the oral care device control device can be referred to the description of the technical scheme of the oral care device control method described above.

[0098] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0099] It should be noted that, for the convenience of description, the aforementioned method embodiments are all described as a series of action combinations, but those skilled in the art should be aware that the embodiments of this specification are not limited by the order of the actions described, because according to the embodiments of this specification, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of this specification.

[0100] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0101] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that technicians in the relevant technical field can well understand and use this specification. This specification is only limited by the claims and their full scope and equivalents.

Claims

1. An oral care device, characterized in that: The oral care device comprises a host, the host comprises a fluid reservoir, a power assembly and a control assembly, the power assembly is electrically connected to the control assembly, the power assembly is in fluid communication with the fluid reservoir, and the power assembly comprises a motor; The control component is used to obtain the current voltage value of the motor; Comparing the current voltage value with a preset voltage value of the motor in the current working mode to obtain a comparison result; According to the comparison result, adjusting the current duty cycle; The oral care device is voltage controlled by adjusting the current duty cycle.

2. The oral care device according to claim 1, characterized in that The control component is further used to reduce the current duty cycle when the current voltage value is greater than the preset voltage value; or increase the current duty cycle when the current voltage value is less than the preset voltage value.

3. The oral care device according to claim 1, characterized in that The control component is further used to obtain a current deviation value according to the current voltage value and the preset voltage value; compare the current deviation value with a preset deviation range to obtain a comparison result; and adjust the current duty cycle according to the comparison result.

4. The oral care device according to claim 3, characterized in that The control component is further configured to adjust the current duty cycle according to a first adjustment value when the current deviation value is within the deviation range; And / or, the control component is further configured to adjust the current duty cycle according to a second adjustment value when the current deviation value is greater than a first threshold value of the deviation range; The first adjustment value is smaller than the second adjustment value.

5. The oral care device according to claim 4, characterized in that The control component is further configured to obtain a first difference value when it is determined according to the comparison result that the current voltage value is greater than the preset voltage value, wherein the first difference value is the current voltage value minus the preset voltage value; It is also used to obtain a target duty cycle when the first difference is greater than the first threshold, wherein the target duty cycle is the current duty cycle minus the second adjustment value; and to obtain a target duty cycle when the first difference is less than the first threshold, wherein the target duty cycle is the current duty cycle minus the first adjustment value.

6. The oral care device according to claim 4, characterized in that The control component is further configured to obtain a second difference value when it is determined according to the comparison result that the current voltage value is less than the preset voltage value, wherein the second difference value is the preset voltage value minus the current voltage value; It is also used to obtain a target duty cycle when the second difference is greater than the first threshold, wherein the target duty cycle is the current duty cycle plus the second adjustment value; and to obtain a target duty cycle when the second difference is less than the first threshold, wherein the target duty cycle is the current duty cycle plus the first adjustment value.

7. The oral care device according to claim 3, characterized in that The control component is further configured to not adjust the current duty cycle when the current deviation value is smaller than a second threshold value of the deviation range.

8. The oral care device according to claim 1, characterized in that The power assembly is used to provide power to transport the fluid from the fluid reservoir to the fluid outlet; the control assembly is also used to control the voltage of the power assembly; The power assembly is also used to control the pressure of the fluid flowing out of the oral care device based on the voltage control so that the pressure conforms to the current working mode of the oral care device.

9. The oral care device according to claim 1, characterized in that The control component is also used to obtain motor voltage sampling conditions, wherein the motor voltage sampling conditions include at least one of the motor state being a starting state, the sampling duration satisfying a preset duration threshold, the host state being a working state, and the sampling state being a sampling state; when the motor satisfies the motor voltage sampling conditions, the motor voltage is sampled multiple times on the motor to obtain the current voltage value of the motor.

10. The oral care device according to claim 1, characterized in that The oral care device also includes a power supply, the motor is electrically connected to the power supply, and the control component is also used to obtain the negative pole voltage value of the motor; and obtain the current voltage value of the motor according to the input voltage value of the power supply and the negative pole voltage value of the motor.

11. A method for controlling an oral care device, characterized in that: A control component applied to the oral care device, the oral care device comprising a host, the host comprising a fluid reservoir, a power component and the control component, the power component being electrically connected to the control component, the power component being fluidically connected to the fluid reservoir, and the power component comprising a motor; the oral care device control method comprising: Obtaining a current voltage value of the motor; Comparing the current voltage value with a preset voltage value of the motor in the current working mode to obtain a comparison result; According to the comparison result, adjusting the current duty cycle; The oral care device is voltage controlled by adjusting the current duty cycle.

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