Oral cleaning devices and their control methods

Abstract

This invention provides an oral cleaning device and its control method. The oral cleaning device includes a first pressure detection area and a second pressure detection area spaced apart from the first pressure detection area. The control method includes: acquiring first pressure information of the first pressure detection area and second pressure information of the second pressure detection area; determining a shielding state of the first pressure detection area based on the second pressure information; the shielding state includes a shielded state and an unshielded state; when the first pressure detection area is triggered, if the shielding state is unshielded, determining whether to execute a target action based on the first pressure information; if the shielding state is shielded, not responding to the triggering state action of the first pressure detection area. This invention, by combining the detection and processing of the pressure status of the second pressure detection area, can shield the triggering of the first pressure detection area, reducing false triggering of the oral cleaning device.

Description

Technical Field

[0001] This invention relates to the field of consumer electronics products, and more particularly to an oral cleaning device and its control method. Background Technology

[0002] In the current oral hygiene device market, pressure-sensitive operation has become a mainstream interactive design due to its convenient one-touch start-up, meeting users' needs for quick start-up and simplified usage steps. It is widely used in mid-to-high-end oral hygiene devices. However, existing pressure-sensitive operation still has significant false triggering issues. Specifically, when the device is subjected to external force, or when the pressing position deviates from the core area of ​​the pressure sensor but acts on the periphery of the sensor, the pressure sensor may misinterpret the pressure transmitted by PCB board deformation or deformation pressure generated by non-target forces as a button command. This can lead to the device turning on unexpectedly, switching modes erratically, affecting the user experience, increasing unnecessary power consumption, and shortening the device's battery life. Summary of the Invention

[0003] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, the present invention provides an oral cleaning device and its control method, which can shield the triggering of the first pressing detection area by combining the detection and processing of the pressing situation of the second pressing detection area, so as to reduce the false triggering of the oral cleaning device.

[0004] On one hand, embodiments of the present invention provide a control method for an oral cleaning device, the oral cleaning device including a first pressure detection area and a second pressure detection area spaced apart from the first pressure detection area, the control method including: acquiring first pressure information of the first pressure detection area and second pressure information of the second pressure detection area respectively; determining a shielding state of the first pressure detection area based on the second pressure information; the shielding state includes a shielding state and a non-shielding state; when the first pressure detection area is triggered, if the shielding state is a non-shielding state, determining whether to execute a target action based on the first pressure information; if the shielding state is a shielding state, not responding to the triggering state action of the first pressure detection area.

[0005] In some embodiments, determining the shielding state of the first pressure detection area based on the second pressure information specifically includes: determining the triggering state of the second pressure detection area based on the second pressure information and the second reference pressure; if the second pressure detection area is not triggered, then determining the shielding state as an unshielded state; if the second pressure detection area is triggered, then determining the shielding state based on the first pressure information and the second pressure information.

[0006] In some embodiments, determining the shielding state based on the first press information and the second press information if the second press detection area is triggered specifically includes: when the first press detection area is triggered, obtaining a first trigger time of the first press detection area based on the first press information; obtaining a second trigger time of the second press detection area based on the second press information; and determining the shielding state based on the first trigger time and the second trigger time.

[0007] In some embodiments, determining the shielding state based on the first trigger time and the second trigger time specifically means: when the first trigger time is not earlier than the second trigger time and the difference between the two is less than a preset time difference, the shielding state is a state that should be shielded; otherwise, the shielding state is a state that is not shielded.

[0008] In some embodiments, if the shielding state is an unshielded state, determining whether to execute the target action based on the first press information specifically includes: determining a first continuous triggering duration of the first press detection area based on the first press information; when the first continuous triggering duration is greater than a first preset duration, determining to control the oral cleaning device to execute the target action; otherwise, determining not to control the oral cleaning device to execute the target action.

[0009] In some embodiments, a zero-point calibration step is further included: determining the current pressure value of the second pressure detection area and the duration of the current pressure value based on the second pressure information; when the duration of the current pressure value is greater than or equal to a second preset duration, updating the second reference pressure based on the current pressure value to determine the trigger state of the second pressure detection area based on the second reference pressure.

[0010] In some embodiments, the first pressure detection area is provided with a first pressure sensing unit, and the second pressure detection area is provided with a second pressure sensing unit. The control method further includes a synchronous calibration step: acquiring reference detection data of the first pressure sensing unit and the second pressure sensing unit in advance; and performing synchronous calibration of the first pressure sensing unit and the second pressure sensing unit based on the reference detection data.

[0011] This invention also provides an oral cleaning device, comprising: a device body having a first pressure detection area and a second pressure detection area spaced apart from the first pressure detection area; a pressure sensing component including a first pressure sensing unit and a second pressure sensing unit spaced apart from each other, the first pressure sensing unit being disposed corresponding to the first pressure detection area and used to detect the pressure of the first pressure detection area; the second pressure sensing unit being disposed corresponding to the second pressure detection area and used to detect the pressure of the second pressure detection area; and a control chip disposed on the device body and connected to the pressure sensing component; the control chip being configured to acquire first pressure information through the first pressure sensing unit and second pressure information through the second pressure sensing unit; determine a shielding state of the first pressure detection area based on the second pressure information; the shielding state includes a shielded state and an unshielded state; when the first pressure detection area is triggered, if the shielding state is an unshielded state, determine whether to execute a target action based on the first pressure information; if the shielding state is a shielded state, do not respond to the triggering state action of the first pressure detection area.

[0012] In some embodiments, the oral cleaning device further includes a circuit board, wherein the first pressure sensing unit and the second pressure sensing unit are arranged along the length direction of the circuit board; the first pressure sensing unit extends along the width direction of the circuit board, and the second pressure sensing unit extends along the length direction of the circuit board.

[0013] In some embodiments, the circuit board is provided with deformation notches, which are located on opposite sides of the second pressure sensing unit in the width direction of the circuit board.

[0014] As can be seen from the above, the oral cleaning device and its control method provided in the embodiments of the present invention, by setting a first pressure sensing unit in a first pressure detection area and a second pressure sensing unit in a second pressure detection area, detects and processes accidental touches based on the second pressure sensing unit, so as to shield the first pressure sensing unit under specified conditions and achieve the effect of preventing accidental touches. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an oral cleaning device provided in an embodiment of the present invention.

[0017] Figure 2 for Figure 1 The diagram shows an exploded view of the oral cleaning device.

[0018] Figure 3 for Figure 2 A further exploded structural diagram of the middle handle.

[0019] Figure 4 for Figure 3 A schematic diagram of the specific structure of the circuit board.

[0020] Figure 5 This is a schematic diagram of the circuit structure of the control chip of the oral cleaning device in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the circuit structure of the first pressure sensing unit in the pressure-sensitive component of the oral cleaning device according to one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the circuit structure of the second pressure sensing unit in the pressure-sensitive assembly of the oral cleaning device in one embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the circuit structure of the pressure detection chip in the pressure-sensitive component of the oral cleaning device according to one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the module principle of the oral cleaning device circuit in one embodiment of the present invention.

[0025] [Explanation of Labels in the Attached Image] 1. Oral cleaning device; 10. Brush head; 20. Handle; 30. Connecting shaft; 100. Housing; 131. Button section; 200. Circuit board; 210. First pressure sensing unit; 220. Second pressure sensing unit; 212. First deformation groove; 213. Second deformation groove; 214. Deformation notch; 240. Control chip; 410. Actuation module. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, top, bottom) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] In the embodiments of this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0029] See Figures 1 to 4 As shown, this embodiment of the invention provides an oral cleaning device 1, which may be, for example, an electric oral cleaning device, such as an electric toothbrush, including a brush head 10 and a handle 20. It may also be, for example, an electric water flosser, or a manual or electric oral cleaning device with air / liquid function.

[0030] The oral cleaning device 1 controls its corresponding functions through a pressing operation. For example, the brush head 10 of the oral cleaning device 1 can be triggered to vibrate and / or rotate by pressing or touching; or the air / liquid function of the oral cleaning device 1 can be triggered by pressing or touching; or the brush head 10 vibration and / or rotation and the air / liquid function of the oral cleaning device 1 can be triggered simultaneously by pressing or touching. Of course, in other embodiments, the pressing operation can also be configured to trigger other preset functions of the system (such as mode switching, intensity adjustment, etc.).

[0031] Specifically, the oral cleaning device 1 includes a device body, a pressure-sensing component, and a control chip 240. The device body has a first pressure detection area and a second pressure detection area spaced apart from the first pressure detection area. The pressure-sensing component includes a first pressure sensing unit 210 and a second pressure sensing unit 220 spaced apart from each other. The first pressure sensing unit 210 is positioned corresponding to the first pressure detection area and is used to detect the pressure in the first pressure detection area. The second pressure sensing unit 220 is positioned corresponding to the second pressure detection area and is used to detect the pressure in the second pressure detection area. The control chip 240 is disposed on the device body and connected to the pressure-sensing component. (Refer to...) Figure 9 The control chip 240 is connected to the first pressure sensing unit 210 and the second pressure sensing unit 220 respectively.

[0032] Reference Figure 1 and Figure 2 The oral cleaning device 1 includes, for example, a brush head 10, a handle 20, and a connecting shaft 30, with a control chip 240 specifically disposed within the handle 20. See also Figure 3 and Figure 4 The device body includes a housing 100 for the handle 20, and also includes a circuit board 200 within the housing 100. A control chip 240 is disposed within the housing 100. In some embodiments, the oral cleaning device 1 further includes an actuation module 410, which may include a motor and / or a fluid pump. (See reference...) Figure 9 The actuation module 410 is electrically connected to the control chip 240. The motor can be connected to the brush head 10 to cause the brush head 10 to vibrate and / or rotate.

[0033] like Figure 3 As shown, taking the manual oral cleaning device 1 with air / liquid function as an example, the actuation module 410 can be, for example, a fluid pump. The brush head 10 is provided with a fluid channel and a spray structure that connects to the flow channel. The fluid outlet of the fluid pump is connected to the flow channel. When the actuation module 410 is working, gas or liquid can be sprayed from the spray hole through the connecting shaft 30.

[0034] A button section 131 is provided on the housing 100, and the area where the button section 131 is located is the first press detection area. For example, pressing the button section 131 can start / stop the actuation module 410 or switch modes. The first press sensing unit 210 and the second press sensing unit 220 are provided on the circuit board 200. In the assembled state, the first press sensing unit 210 is located inside the button section 131, and the user can trigger the first press sensing unit 210 by pressing the button section 131. Since the user is likely to press the position near the button section 131 when holding the device body for oral cleaning, and due to the tight assembly of the housing 100, pressure is transmitted and the button section 131 is pressed, resulting in accidental activation of the first press sensing unit 210. If the control chip 240 controls the oral cleaning device 1 to perform corresponding actions only by triggering the first press sensing unit 210, it is easy to cause problems such as unexplained power-on and random mode switching during use.

[0035] Therefore, the oral cleaning device provided in this embodiment also includes a second pressure sensing unit 220, and the portion of the housing 100 covering the second pressure sensing unit 220 constitutes the second pressure detection area. In a specific embodiment, the second pressure sensing unit 220 is located on the side of the first pressure sensing unit 210 away from the brush head 10. The pressure detection of the second pressure detection area is achieved through the second pressure sensing unit 220, and the combination of the control chip 240 with the first pressure sensing unit 210 and the second pressure sensing unit 220 enables the judgment of accidental touches and the shielding of triggering by the first pressure sensing unit 210.

[0036] In some embodiments, the first pressure sensing unit 210 extends along the width direction of the circuit board 200, and the second pressure sensing unit 220 extends along the length direction of the circuit board 200. By arranging the first pressure sensing unit 210 to extend along the width direction of the circuit board 200 and the second pressure sensing unit 220 to extend along its length direction, the sensing directions of the two sensing units are independent of each other, and the pressure trigger areas do not overlap, effectively avoiding accidental touch interference during the pressing operation. Furthermore, when the user operates the button 131, the recognition accuracy of the first pressure sensing unit 210 can be improved, and when the user accidentally presses near the button 131, the recognition accuracy of the second pressure sensing unit 220 is even higher, thereby significantly improving the recognition accuracy of the pressing command and ensuring the sensitivity of the pressing sensation.

[0037] In one embodiment of this invention, the circuit board 200 is provided with a deformation notch 214, which is located near the second pressure sensing unit 220. Specifically, the deformation notch 214 is located on opposite sides of the second pressure sensing unit 220 in the width direction of the circuit board 200. The second pressure sensing unit 220 is arranged along the length direction of the circuit board 200, and the deformation notch 214 is located near the second pressure sensing unit 220. For example, it can be located on opposite sides of the second pressure sensing unit 220 in the width direction of the circuit board 200. When the user accidentally touches the housing 100 outside the pressing area, or when the connecting shaft 30 is subjected to large pressure causing the circuit board 200 to deform, the deformation notch 214 will guide the deformation to occur preferentially near the second pressure sensing unit 220, and the second pressure sensing unit 220 will extend along the length direction to be preferentially triggered.

[0038] In some embodiments, a second deformation groove 213 is also provided on the circuit board 200, and the second deformation groove 213 is located below the second pressure sensing unit 220. The second pressure sensing unit 220 is located in the second deformation groove 213, and the second pressure sensing unit 220 does not completely cover the second deformation groove 213. When the user accidentally touches the housing 100 outside the pressing area, or when the connecting shaft 30 is subjected to large pressure causing the circuit board 200 to deform, the second deformation groove 213 provides clearance space for deformation in the area near the second pressure sensing unit 220.

[0039] In another embodiment of this invention, the circuit board 200 is provided with a first deformation groove 212, which is located below the first pressure sensing unit 210. The first deformation groove 212 makes the first pressure sensing unit 210 easy to trigger. The first deformation groove 212 provides the necessary deformation avoidance space for the first pressure sensing unit 210, preventing the lower plane of the circuit board 200 from obstructing the deformation during pressing. When the user presses the button part 131 normally, the pressure can be efficiently transmitted to the first pressure sensing unit 210, causing the circuit board 200 to undergo precise micro-deformation under the synergistic effect of the first deformation groove 212, thereby quickly and sensitively triggering the first pressure sensing unit 210.

[0040] Specifically, the control chip 240 is configured to execute the following control methods: S1: Obtain the first pressure information of the first pressure detection area and the second pressure information of the second pressure detection area respectively.

[0041] S2: Determine the shielding status of the first pressure detection area based on the second pressure information; the shielding status includes a shielded state and a non-shielded state; S3: When the first press detection area is triggered, if the shielding state is unshielded, determine whether to execute the target action based on the first press information; if the shielding state is to be shielded, do not respond to the triggering state action of the first press detection area.

[0042] Among them, such as Figure 5 As shown, the control chip 240 can be an MCU (Microcontroller Unit). As the core control unit, the control chip 240 integrates functional modules such as processor, memory (RAM / ROM), and I / O interface.

[0043] Specifically, in step S1, the control chip 240 obtains the first press information of the first press detection area through the first press sensing unit 210 and the second press information of the second press detection area through the second press sensing unit 220. More specifically, for example, refer to... Figure 6 YG1, as shown, represents the first pressure sensing unit 210, such as Figure 7 The YG2 shown represents the second pressure sensing unit 220; both sensing units have identical performance. (See reference...) Figure 8 The pressure-sensitive component also includes a pressure-sensitive detection chip U4, which has signal acquisition, amplification, A / D conversion, and communication functions. The first pressure sensing unit 210 and the second pressure sensing unit 220 are respectively connected to the pressure-sensitive detection chip U4, ensuring that the two pressure sensing units have independent signal acquisition channels and that their respective pressure signals do not interfere with each other. Figure 6 and Figure 7As shown, the first pressure sensing unit 210 (e.g., YG1) and the second pressure sensing unit 220 (e.g., YG2) adopt independent bridge structures and do not form a shared circuit loop. This can avoid crosstalk or signal interference between the first pressure sensing unit 210 and the second pressure sensing unit 220 at the hardware physical level, ensuring that their respective pressure signals do not interfere with each other.

[0044] The pressure-sensitive detection chip U4 is connected to the control chip 240 (e.g., via its KEY_EN pin) Figure 5 (As shown). The first pressure sensing unit 210 collects the pressure signal of the first pressure detection area, and the second pressure sensing unit 220 collects the pressure signal of the second pressure detection area. The pressure sensing chip processes the signals from the first pressure sensing unit 210 and the second pressure sensing unit 220 (e.g., amplification, filtering, A / D conversion) before transmitting the pressure value to the control chip 240. The first and second pressure information may include information such as the pressure value received directly from the pressure sensing components by the control chip 240, or information obtained after processing the information received from the pressure sensing components by the control chip 240. The first pressure information may include, for example, trigger status information indicating whether the first pressure sensing unit 210 (first pressure detection area) is triggered, the pressure value of the pressure received by the first pressure sensing unit 210 (first pressure detection area), the time when the first pressure sensing unit 210 (first pressure detection area) is triggered, and the duration of the trigger. The second press information may include, for example, trigger status information of whether the corresponding second press sensing unit 220 (second press detection area) is triggered, pressure value of the pressure received by the second press sensing unit 220 (second press detection area), and the time when the second press sensing unit 220 (second press detection area) is triggered, the duration of the trigger, etc.

[0045] In step S2, based on the second press information, it is determined whether the oral hygiene device is subjected to abnormal pressure or accidental touch. For example, if the pressing position deviates from the first press detection area when the device is being stored in packaging or held by the user, the circuit board 200 deforms and transmits pressure to the first press sensing unit 210. In this case, the user's intention is not to activate the oral hygiene device. The control chip 240 can determine from step S2, based on the second press information, that this is an accidental touch and can determine that the shielding state should be shielded.

[0046] In step S3, when the first press detection area is triggered, the control chip 240 determines whether to respond to the triggering of the first press sensing unit 210 (first press detection area) and execute the target action based on the shielding state. Whether the first press detection area is triggered can be determined by the control chip 240 by comparing the pressure value received by the first press detection area with a first reference pressure. When the pressure value received by the first press detection area is greater than or equal to the first reference pressure, the first press detection area is triggered. The target action is the originally designed action when the button 131 is pressed. For example, the originally designed action is to be activated when the button 131 is pressed to meet the activation conditions (e.g., single press, long press, double press, etc.). In step S3, if the shielding state is unshielded, the triggering state of the first press detection area can be responded to normally to determine whether the pressure received by the first press detection area meets the activation conditions based on the first press information, and thus determine whether to activate. For example, if the original design action is to switch modes, then in step S3, when the shielding state is unshielded, the trigger state of the first pressure detection area is responded to normally to determine whether the pressure received by the first pressure detection area meets the condition based on the first pressure information, and thus determine whether to switch modes. When the shielding state is to be shielded, the trigger state of the first pressure detection area is not responded to regardless of whether the pressure received by the first pressure detection area meets the condition. For example, when the shielding state is to be shielded, if the pressure received by the first pressure detection area meets the condition, the pressure sensing component sends a trigger signal to the control chip 240 indicating that the first pressure detection area has been triggered, and the control chip 240 directly shields the trigger signal and does not execute the original design action. If the pressure received by the first pressure detection area does not meet the condition, the control chip 240 also does not execute the original design action.

[0047] In this embodiment, by setting pressure sensing units in the first pressure detection area and the second pressure detection area respectively, the anti-mistouch detection can be performed based on the pressure received by the second pressure sensing unit 220 in the second pressure detection area (second pressure information). This can reduce the occurrence of problems such as accidental activation and mode switching caused by the deformation of the circuit board 200 transmitting pressure when the pressing position deviates from the first pressure detection area.

[0048] Step S2 specifically includes: S21: Determine the trigger state of the second pressure detection zone based on the second pressure information and the second reference pressure; S22: If the second press detection area is not triggered, the shielding state is determined to be unshielded; if the second press detection area is triggered, the shielding state is determined based on the first press information and the second press information.

[0049] For example, the second pressure sensing unit 220 collects the pressure signal of the pressure received by the second pressure detection area, converts it into pressure data through the pressure sensing chip, and transmits it to the control chip 240. In step S21, the control chip 240 compares the pressure value received by the second pressure detection area with the second reference pressure. When the pressure value received by the second pressure detection area is greater than or equal to the second reference pressure, the second pressure detection area is triggered. In some embodiments, the shielding state can be directly determined as a shielding state when the second pressure detection area is triggered. In step S22, when the second pressure detection area is triggered, the shielding state also needs to be determined based on the first pressure information. This allows for the determination of more complex force conditions, such as when the user actually presses the button part 131, but the pressing force is large, causing pressure transmission and the second pressure sensing unit 220 to be triggered due to pressure greater than the second reference pressure. By adding a dual judgment standard of first pressure information and second pressure information for the shielding state in step S22, the occurrence of false shielding problems can be reduced.

[0050] More specifically, step S22 includes: when the first press detection area is triggered, obtaining the first trigger time of the first press detection area based on the first press information; obtaining the second trigger time of the second press detection area based on the second press information; and determining the shielding state based on the first trigger time and the second trigger time.

[0051] Specifically, the first pressure sensing unit 210 collects the pressure signal of the first pressure detection area (button part 131), converts it into pressure data through the pressure sensing chip, and transmits it to the control chip 240. In step S222, since both the first and second pressure detection areas are triggered, the shielding state can be determined according to the order of the first and second trigger times. For example, when the user applies pressure to the button part 131, even if the pressure is transmitted and triggers the second pressure sensing unit 220, the first trigger time is earlier than the second trigger time. Thus, the shielding state can be determined to be unshielded based on the first trigger time being earlier than the second trigger time. If the user applies pressure to both the first and second pressure detection areas simultaneously due to holding the oral hygiene device, the first and second trigger times are the same. If the circuit board deforms due to other issues applied to the second pressure detection area, transmitting force to the first pressure sensing unit 210, the second trigger time is earlier than the first trigger time. Thus, the state can be determined to be shielded based on the first trigger time being equal to or later than the second trigger time. This allows for a more accurate prevention of accidental touches.

[0052] In some embodiments, when the first trigger time is not earlier than the second trigger time, and the difference between the two is less than a preset time difference, the shielding state is a state that should be shielded; if the difference between the two is greater than or equal to the preset time difference, the shielding state is a state that is not shielded. The preset time difference is, for example, 500ms, meaning that the shielding state is only required when the first trigger time is within 500ms after or simultaneously with the second trigger time. This avoids the problem of the first press detection area remaining in a shielded state and failing to start normally due to prolonged pressure on the second press detection area.

[0053] In some embodiments, step S3 specifically includes: S31: Determine the first continuous trigger duration of the first press detection area based on the first press information; S32: When the first continuous triggering duration is greater than the first preset duration, determine that the oral cleaning device is controlled to perform the target action; otherwise, determine that the oral cleaning device is controlled not to perform the target action.

[0054] In step S31, the duration for which the pressure value received by the first pressure sensing unit 210 is greater than or equal to the first reference pressure is defined as the first continuous trigger duration. In step S32, the first preset duration is, for example, 50ms. When the pressure value received by the first pressure sensing unit 210 is greater than or equal to the first reference pressure, it is in a pressurized state; when it is less than the first reference pressure, it is in a non-pressurized state. Therefore, only when the first pressure detection area is continuously pressurized for more than 50ms is it determined that the oral cleaning device will execute the target action. In some embodiments, when the first pressure detection area is triggered, if it is in an unshielded state, the oral cleaning device can be directly controlled. In this embodiment, the addition of a continuous pressure duration criterion can avoid instantaneous interference and ensure more accurate control.

[0055] In some embodiments, the control chip 240 is further configured to perform a zero-point calibration step S4. Specifically, S4 includes: S41: Determine the current pressure value of the second pressure detection zone and the duration of maintaining the current pressure value based on the second pressure information; S42: When the duration of the current pressure value is greater than or equal to the second preset duration, the second reference pressure is updated based on the current pressure value to determine the trigger state of the second pressure detection zone according to the second pressure.

[0056] Specifically, in step S41, after detecting that the second pressure detection zone is at a certain pressure value, if the fluctuation of the pressure value is less than a preset fluctuation, it is considered that the pressure applied to the second pressure detection zone remains unchanged, and the duration of maintaining that pressure value is accumulated to obtain the duration of the current pressure value. In step S42, the second preset duration is, for example, 10 seconds. Therefore, if the pressure in the second pressure detection zone remains unchanged for more than 10 seconds, the second reference pressure is updated based on the current pressure value. This second reference pressure is the second reference pressure in step S21.

[0057] In some embodiments, updating the second reference pressure based on the current pressure value specifically includes: if the current pressure value is less than or equal to the original second reference pressure, then the original second reference pressure is used as the updated second reference pressure; otherwise, the current pressure value is used as the updated second reference pressure.

[0058] The initial second reference pressure remains constant. For example, if the initial second reference pressure is P0 and the current pressure is P1, and P1 is greater than P0, then if P1 remains constant for a second preset duration, P1 is updated to the second reference pressure, and the trigger state of the second pressure detection zone is determined based on P1. If the current pressure subsequently changes to P2, and P2 is greater than P0 but less than P1, then if P2 remains constant for a second preset duration, P2 is updated to the second reference pressure, and the trigger state of the second pressure detection zone is determined based on P2. Similarly, if the current pressure subsequently changes to P3, and P3 is less than P0, then if P3 remains constant for a second preset duration, P0 is updated to the second reference pressure.

[0059] For example, if a user tightly inserts the oral hygiene device into a travel case, or if the casing 100 undergoes slight deformation due to drastic temperature changes, this continuous deformation may cause the second pressure detection area to remain under pressure, leading to a continuously triggered state. This, in turn, causes the first pressure detection area to remain in a shielded state and become locked, preventing normal operation. Therefore, step S4 updates the second reference pressure to prevent the first pressure detection area from locking due to environmental changes. Furthermore, the second reference pressure can still be updated even when the user inserts and removes the oral hygiene device from the travel case, preventing shielding failure due to excessively high second reference pressure. Through this dynamic calibration, the detection sensitivity of the second pressure detection area can be restored to its initial state, restoring the button function locked by environmental background pressure and greatly improving the device's adaptability in complex environments.

[0060] In some embodiments, when the first pressure detection zone is triggered in step S41, the duration of the current pressure value needs to be recalculated. Alternatively, this can be understood as the step of updating the second reference pressure in step S42 only being performed if the first pressure detection zone is not triggered within a second preset duration.

[0061] In some embodiments, the control chip 240 is further configured to perform a synchronous calibration step S5: pre-acquiring reference detection data of the first pressure sensing unit 210 and the second pressure sensing unit 220, and synchronously calibrating the first pressure sensing unit and the second pressure sensing unit based on the reference detection data. Before the oral cleaning device leaves the factory, the same reference detection pressure can be applied to the first pressure detection area and the second pressure detection area using a dedicated testing device, so that the control chip 240 can detect the reference detection data when the reference detection pressure is applied through the first pressure sensing unit 210 and the second pressure sensing unit 220. The synchronous calibration step S5 can make the detection sensitivity of the first pressure sensing unit 210 and the second pressure sensing unit 220 consistent, thereby improving the detection effect.

[0062] In a specific embodiment of the present invention, the control method of the oral cleaning device is as follows: When only the first pressure detection area is detected to be under pressure (the pressure value of the first pressure detection area is greater than the first reference pressure) and the duration is greater than or equal to the first preset duration, the control chip 240 executes the corresponding function instruction to make the oral cleaning device perform the target action. If the duration is less than the first preset duration, the control chip 240 does not execute the corresponding function instruction, or issues a corresponding instruction to control the oral cleaning device not to perform the target action.

[0063] When pressure is detected in the second pressure detection area (the pressure value of the second pressure detection area is greater than the second reference pressure), and pressure is also detected in the first pressure detection area, if the first trigger time is later than the second trigger time and the time difference is within a preset time difference, or if the first trigger time and the second trigger time are the same, then the pressure situation of the first pressure detection area is masked. That is, no response is given regardless of whether the duration of pressure in the first pressure detection area is greater than or equal to the first preset time. When the first trigger time is later than the second trigger time but the time difference exceeds the preset time difference, or when the first trigger time is earlier than the second trigger time, the pressure situation of the first pressure detection area is not masked. If the duration of pressure in the first pressure detection area is greater than or equal to the first preset time, the control chip 240 executes the corresponding function instruction to make the oral cleaning device perform the target action. If the duration is less than the first preset time, the control chip 240 does not execute the corresponding function instruction, or issues a corresponding instruction to control the oral cleaning device not to perform the target action.

[0064] When pressure is detected in the second pressure detection area but not in the first pressure detection area, the state before the first pressure detection area was not triggered remains unchanged because the first pressure detection area was not triggered.

[0065] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of the present invention. Provided that the technical features do not conflict, the structure is not contradictory, and the purpose of the invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for an oral cleaning device, characterized in that, The oral cleaning device includes a first pressure detection area and a second pressure detection area spaced apart from the first pressure detection area, and the control method includes: The first pressure information of the first pressure detection area and the second pressure information of the second pressure detection area are obtained respectively; The shielding status of the first pressure detection area is determined based on the second pressure information; the shielding status includes a shielded state and an unshielded state. When the first press detection area is triggered, if the shielding state is unshielded, the target action is determined based on the first press information; if the shielding state is to be shielded, the triggering state action of the first press detection area is not responded to.

2. The control method for the oral cleaning device as described in claim 1, characterized in that, The step of determining the shielding state of the first pressure detection area based on the second pressure information specifically includes: The trigger state of the second pressure detection zone is determined based on the second pressure information and the second reference pressure. If the second press detection area is not triggered, the shielding state is determined to be an unshielded state; If the second press detection area is triggered, the shielding state is determined based on the first press information and the second press information.

3. The control method for the oral cleaning device as described in claim 2, characterized in that, Determining the shielding state based on the first press information and the second press information specifically includes: When the first pressure detection zone is triggered, the first trigger time of the first pressure detection zone is obtained based on the first pressure information; The second trigger time of the second press detection area is obtained based on the second press information; the shielding state is determined according to the first trigger time and the second trigger time.

4. The control method for the oral cleaning device as described in claim 3, characterized in that, The shielding state is determined based on the first trigger time and the second trigger time, specifically as follows: When the first trigger time is not earlier than the second trigger time, and the difference between the two is less than a preset time difference, the shielding state is a shielding state; otherwise, the shielding state is a non-shielding state.

5. The control method for the oral cleaning device as described in claim 1, characterized in that, Determining whether to execute the target action based on the first press information specifically includes: The first continuous trigger duration of the first pressure detection area is determined based on the first pressure information; When the first continuous trigger duration is greater than the first preset duration, it is determined that the oral cleaning device should be controlled to perform the target action; otherwise, it is determined that the oral cleaning device should not be controlled to perform the target action.

6. The control method for the oral cleaning device as described in claim 1, characterized in that, It also includes a zero-point calibration step: The current pressure value of the second pressure detection area and the duration of the current pressure value are determined based on the second pressure information. When the duration of the current pressure value is greater than or equal to the second preset duration, the second reference pressure is updated based on the current pressure value, so as to determine the trigger state of the second pressure detection area according to the second reference pressure.

7. The control method for the oral cleaning device as described in claim 1, characterized in that, The first pressure detection area is provided with a first pressure sensing unit, and the second pressure detection area is provided with a second pressure sensing unit. The control method further includes a synchronous calibration step: acquiring reference detection data of the first pressure sensing unit and the second pressure sensing unit in advance; and performing synchronous calibration of the first pressure sensing unit and the second pressure sensing unit based on the reference detection data.

8. An oral hygiene device, characterized in that, include: The device body has a first press detection area and a second press detection area spaced apart from the first press detection area; The pressure-sensitive component includes a first pressure sensing unit and a second pressure sensing unit arranged at intervals between each other. The first pressure sensing unit is arranged corresponding to the first pressure detection area and is used to detect the pressure in the first pressure detection area. The second pressure sensing unit is arranged corresponding to the second pressure detection area and is used to detect the pressure in the second pressure detection area. A control chip is disposed on the main body of the device and connected to the pressure-sensitive component; the control chip is configured to acquire first pressure information through the first pressure sensing unit and second pressure information through the second pressure sensing unit; determine the shielding state of the first pressure detection area based on the second pressure information; the shielding state includes a shielded state and an unshielded state; when the first pressure detection area is triggered, if the shielding state is an unshielded state, determine whether to execute the target action based on the first pressure information; if the shielding state is a shielded state, do not respond to the triggering state action of the first pressure detection area.

9. The oral cleaning device as described in claim 8, characterized in that, It also includes a circuit board, wherein the first pressure sensing unit and the second pressure sensing unit are arranged along the length direction of the circuit board; the first pressure sensing unit extends along the width direction of the circuit board, and the second pressure sensing unit extends along the length direction of the circuit board.

10. The oral cleaning device as claimed in claim 9, characterized in that, The circuit board has deformation notches, which are located on opposite sides of the second pressure sensing unit in the width direction of the circuit board.

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