Toothbrush capable of displaying tooth brushing force during tooth brushing

Abstract

The toothbrush comprises a toothbrush head and a toothbrush body, and the toothbrush body comprises a shell, an OLED display screen, a gyroscope module, a film pressure sensor, a micro-processing module, a storage module and a power module. The thin film pressure sensor and the gyroscope module are used for monitoring the pressure and the motion state of the toothbrush head during tooth brushing and sending monitoring data to the micro-processing module, an embedding opening is formed in the shell, and the OLED display screen is fixedly embedded in the embedding opening and connected with the micro-processing module. The micro-processing module analyzes and processes the tooth brushing force according to the monitoring data, judges whether the tooth brushing force is appropriate or not and transmits related analysis information to the OLED display screen and the storage module, and the power module is used for providing power for the OLED display screen, the gyroscope module, the thin film pressure sensor, the micro-processing module and the storage module.

Description

Technical Field

[0001] The invention relates to the technical field of toothbrushes, and in particular to a toothbrush capable of displaying brushing force when brushing teeth. Background Art

[0002] Oral care is an important care measure to maintain oral hygiene and prevent oral diseases. Although brushing teeth is an important part of daily oral care, many people do not know the correct way to brush their teeth. Surveys show that about 90% of people brush their teeth incorrectly. Common mistakes include brushing too hard and failing to cover all tooth areas. Therefore, during the brushing process, patients should accurately judge the force and speed of brushing teeth, and make appropriate adjustments to the action according to the force and speed of brushing teeth to achieve the purpose of better cleaning teeth. However, in real life, the force in three dimensions is difficult to intuitively reflect, and the speed and time of brushing teeth cannot be accurately measured. Summary of the invention

[0003] The object of the present invention is to provide a toothbrush which can display the brushing force during brushing to solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A toothbrush that can display the brushing force during brushing, comprising a toothbrush head and a toothbrush body, the toothbrush body comprising a shell, an OLED display, a gyroscope module, a thin film pressure sensor, a microprocessor module, a storage module and a power module, the thin film pressure sensor and the gyroscope module are respectively used to monitor the pressure and movement state of the toothbrush head during brushing and send the monitoring data to the microprocessor module, the shell is provided with an embedding opening, the OLED display is fixedly embedded in the embedding opening and connected to the microprocessor module, the microprocessor module analyzes and processes the brushing force according to the monitoring data, determines whether the brushing force is appropriate, and transmits relevant analysis information to the OLED display and the storage module, and the power module is used to provide power to the OLED display, the gyroscope module, the thin film pressure sensor, the microprocessor module and the storage module.

[0006] Preferably, the gyroscope module adopts the MPU6050 model, which includes a three-axis gyroscope and a three-axis accelerometer for monitoring the angular velocity and acceleration during brushing.

[0007] Preferably, the angular velocity sensing range of the three-axis gyroscope is ±250° / sec, ±500° / sec, ±1000° / sec and ±2000° / sec, and the full scale of the three-axis accelerometer is ±2g, ±4g, ±8g and ±16g.

[0008] Preferably, it also includes a temperature sensor and an oscillator module, wherein the temperature sensor is used to monitor the ambient temperature and is connected to the microprocessor module, and the oscillator module has only ±1% frequency variation in all temperature ranges.

[0009] Preferably, it also includes a Bluetooth module, and the micro-processing module is connected to the mobile terminal APP via the Bluetooth module.

[0010] Preferably, an operation button is provided on the housing and is connected to the micro-processing module.

[0011] Preferably, a Type-C interface is provided on the shell.

[0012] Preferably, the power module adopts a rechargeable battery, a power monitor and a power management register. The power monitor is used to monitor the power of the rechargeable battery and send the power information to the OLED display for display. The power management register is used to control the toothbrush to enter the standby state.

[0013] Preferably, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected by bolts, and the connecting contact surfaces of the upper shell and the lower shell are provided with a rubber sealing ring and waterproof glue.

[0014] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0015] 1. The present invention provides a toothbrush that can display the brushing force during brushing, monitors the pressure and movement state in real time, analyzes and processes, records the brushing time, calculates the brushing speed, and determines the position of the toothbrush in the mouth, thereby improving the patient's perception of the brushing method; at the same time, the direction, magnitude, acceleration, etc. of the force are fed back to the patient through the numerical display of the display screen to judge whether the brushing habit is correct or not, and corresponding improvement suggestions are put forward through the AI ​​algorithm, thereby improving the patient's tooth cleaning degree.

[0016] 2. The present invention provides a toothbrush that can display the brushing force, stores the patient's brushing analysis data, and transmits it to a mobile terminal for visual analysis, so as to derive the patient's daily brushing habits, and can use AI algorithms on the mobile terminal to propose corresponding improvement suggestions, thereby improving the patient's teeth cleaning level. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural block diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the main structure of the toothbrush of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Example

[0022] Please refer to Figure 1 to Figure 2 As shown, the present invention discloses a toothbrush that can display the brushing force when brushing teeth, including a toothbrush head and a toothbrush body, the toothbrush body including a shell, a microprocessor module 1, a gyroscope module 2, a thin film pressure sensor 3, an OLED display screen 4, a storage module 5 and a power module, the thin film pressure sensor 3 and the gyroscope module 2 are respectively used to monitor the pressure and movement state of the toothbrush head during brushing teeth and send the monitoring data to the microprocessor module 1, an embedding opening is opened on the shell, the OLED display screen 4 is fixedly embedded in the embedding opening and connected to the microprocessor module 1, the microprocessor module 1 analyzes and processes the brushing force according to the monitoring data, determines whether the brushing force is appropriate, and transmits the relevant analysis information to the OLED display screen and the storage module, and the power module is used to provide power for the OLED display screen 4, the gyroscope module 2, the thin film pressure sensor 3, the microprocessor module 1 and the storage module 5.

[0023] The gyroscope module 2 adopts the MPU6050 model, whose operating voltage is 2.375V to 3.46V, and the logic interface VDDIO power supply is 1.8V±5%; the MPU6050 gyroscope module 2 adopts a 4x4x0.9mm QFN package and has the characteristic of 10,000g shock resistance.

[0024] The gyroscope module 2 communicates with the microprocessor module through the I2C interface, and the I2C slave address is 1101000 (AD0=0) or 1101001 (AD0=1). The I2C interface has two working modes: I2C Master Mode, in which the MPU6050 communicates with the external sensor as the master device; Pass-Through Mode, which is only used for connection, allowing the MPU and the external sensor to communicate with the chip at the same time. The digital motion processor inside the MPU6050 gyroscope module can use the main I2C interface to connect to an external magnetometer or other sensor, allowing the device to obtain a complete set of sensor data and avoid interference from the system processor; at the same time, the MPU6050 gyroscope module can also be connected to non-inertial digital sensors, such as thin film pressure sensors, through its I2C interface.

[0025] The gyroscope module 2 includes a three-axis gyroscope and a three-axis accelerometer, which are used to monitor the angular velocity and acceleration during brushing. The three-axis gyroscope measures angular velocity, and the three-axis accelerometer measures angular acceleration. The data of the two can be used to obtain attitude angles such as heading angle, roll angle, and pitch angle through an algorithm, and the units are all degrees; among them, the heading angle is the angle between the x-axis projected onto the horizontal plane and the navigation system, the roll angle is the angle between the z-axis and the plumb line passing through the x-axis, and the pitch angle is the angle between the x-axis and the horizontal plane.

[0026] The three-axis gyroscope and three-axis accelerometer use 16-bit ADC to collect analog signals with a quantization range of -32768 to 32767; the angular velocity sensitivity of the three-axis gyroscope is 16.4LSB / (° / S), and the acceleration sensitivity of the three-axis accelerometer is 16384LSB / g. The angular velocity sensing range of the three-axis gyroscope is ±250° / sec, ±500° / sec, ±1000° / sec and ±2000° / sec, and the full scale of the three-axis accelerometer is ±2g, ±4g, ±8g and ±16g.

[0027] The internal configuration register of the gyroscope module 2 can be used to set parameters such as the digital low-pass filter and external synchronization settings; the gyroscope module configuration register can be used to set the full-scale range of the gyroscope; the three-axis accelerometer configuration register can be used to set the full-scale range of the acceleration sensor; the FIFO (first-in first-out register) enable register can be used to control the enablement of the FIFO; the gyroscope sampling rate division register can be used to set the sampling frequency of the gyroscope. Among them, the three-axis gyroscope and three-axis accelerometer self-test unit can perform self-tests by setting the bits of the relevant registers to test the mechanical and electrical structures of the sensor.

[0028] The AFS_SEL(1:0) bits in the three-axis accelerometer configuration register are used to set the full-scale range of the acceleration sensor, which is generally set to 0, i.e. ±2g; the self-test enable bits of the X, Y, and Z axes can be used to set the corresponding axes for self-test. The sampling frequency divider register of the gyroscope module is used to set the gyroscope sampling frequency of the MPU6050. The calculation formula is: sampling frequency = gyroscope output frequency / (1 + SMPLRT_DIV); when the digital low-pass filter (DLPF_CFG) is set to 0 / 7, the gyroscope output frequency is 8KHz, and 1KHz in other cases; generally, the bandwidth of the three-axis gyroscope is set to half of its sampling rate. For example, if the sampling rate is set to 50Hz, SMPLRT_DIV = 1000 / 50-1 = 19; the DLPF_CFG (2:0) bit in the configuration register is used to set the digital low-pass filter. The output rate (Fs) of the three-axis accelerometer is fixed at 1KHz, while the output rate (Fs) of the angular velocity sensor varies according to the configuration of DLPF_CFG.

[0029] The three-axis accelerometer data output register consists of 6 registers, which output the acceleration sensor values ​​of the three axes of X / Y / Z, with the high byte in front and the low byte in the back; the three-axis gyroscope data output register consists of 6 registers, which output the gyroscope values ​​of the three axes of X / Y / Z.

[0030] The internal interrupt status register of gyroscope module 2 can be used to control which internal events are output to the interrupt pin, and FIFO can cache the data stream. The three axes of the three-axis accelerometer can be controlled by one bit (ACCEL_FIFO_EN). As long as this bit is set to 1, the FIFO of the three channels of the acceleration sensor is enabled.

[0031] It also includes a temperature sensor and an oscillator module. The temperature sensor is used to monitor the ambient temperature and is connected to the microprocessor module. The oscillator module has only ±1% frequency variation in all temperature ranges.

[0032] It also includes a Bluetooth module. The microprocessor module is connected to the mobile terminal APP via the Bluetooth module, the monitoring data of the storage module is transmitted to the mobile terminal APP wirelessly, and the user is informed of any problems with brushing through the AI ​​algorithm.

[0033] The shell includes an upper shell 6 and a lower shell 7, which are connected by bolts, and the connecting contact surfaces of the upper shell 6 and the lower shell 7 are provided with a rubber sealing ring and waterproof glue to ensure that the electronic components inside the toothbrush work normally in a humid environment.

[0034] The shell is provided with a Type-C interface 8 for importing the monitoring data stored in the storage module to a mobile terminal (such as a computer). The mobile terminal analyzes the shortcomings of one's brushing habits through an AI algorithm, and makes adjustments to ensure the health of the teeth.

[0035] An operation button 9 is provided on the housing and connected to the microprocessor module 1. The user's operation command is transmitted to the microprocessor module 1 through the operation button 9 for corresponding processing, and the user can perform operations such as function switching and viewing historical toothbrushing data, and can also set the full scale range of the three-axis gyroscope and the three-axis accelerometer, configure interrupts, set the AUX IIC interface, set FIFO, set the gyroscope sampling rate, set the digital low-pass filter and other parameters.

[0036] The working process of gyroscope module 2 specifically includes: first initialize the I2C interface; then reset by writing 1 to bit 7 of the power management register. After reset, the power management register restores the default value (0X40), and then sets the register to 0X00 to wake up the MPU6050 to enter normal working state; then set the full scale range of the gyroscope and acceleration sensor; then set other parameters, such as configuring interrupts, setting AUX IIC interface, setting FIFO, setting gyroscope sampling rate, setting digital low-pass filter, etc.; then set the system clock, generally select the x-axis gyroscope PLL as the clock source; finally enable the angular velocity sensor (gyroscope) and acceleration sensor, control them through the power management register, and set them all to not enter standby mode. After initialization is completed, you can read various data of the gyroscope module.

[0037] The power module uses a rechargeable battery, a power monitor and a power management register. The power monitor is used to monitor the power of the rechargeable battery and send the power information to the OLED display for display. The power management register is used to control the various component modules of the toothbrush to enter the standby state. In this embodiment, all default settings are not to enter the standby mode. The DEVICE_RESET bit in the power management register is used to control the reset. Setting it to 1 can restart the internal register to the default value. After the reset is completed, the bit is automatically cleared to 0; the SLEEP bit is used to control the working mode of the MPU6050. Setting it to 1 enters the sleep mode, and clearing this bit to enter the normal working mode; the TEMP_DIS bit is used to set whether to enable the temperature sensor. Setting it to 0 enables it; the CLKSEL (2:0) bit is used to select the system clock source. It is generally set to 001, that is, the PLL with the x / y / z axis gyroscope as the reference is selected as the clock source.

[0038] The OLED display can display in different colors or patterns according to the different brushing strengths. For example, it displays green when the brushing strength is moderate, blue when the brushing strength is too light, and red when the brushing strength is too heavy.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A toothbrush that can display the brushing force during brushing, comprising a toothbrush head and a toothbrush body, characterized in that: The toothbrush body includes a shell, an OLED display, a gyroscope module, a thin film pressure sensor, a microprocessor module, a storage module and a power module. The thin film pressure sensor and the gyroscope module are respectively used to monitor the pressure and movement state of the toothbrush head during brushing and send the monitoring data to the microprocessor module. The shell is provided with an embedding opening, and the OLED display is fixedly embedded in the embedding opening and connected to the microprocessor module. The microprocessor module analyzes and processes the brushing force according to the monitoring data, determines whether the brushing force is appropriate, and transmits the relevant analysis information to the OLED display and the storage module. The power module is used to provide power to the OLED display, the gyroscope module, the thin film pressure sensor, the microprocessor module and the storage module.

2. A toothbrush capable of displaying brushing intensity as claimed in claim 1, characterized in that: The gyroscope module adopts the MPU6050 model, which includes a three-axis gyroscope and a three-axis accelerometer for monitoring the angular velocity and acceleration during brushing.

3. A toothbrush capable of displaying brushing intensity as claimed in claim 2, characterized in that: The angular velocity sensing range of the three-axis gyroscope is ±250° / sec, ±500° / sec, ±1000° / sec and ±2000° / sec, and the full scale of the three-axis accelerometer is ±2g, ±4g, ±8g and ±16g.

4. A toothbrush capable of displaying brushing intensity as claimed in claim 2, characterized in that: It also includes a temperature sensor and an oscillator module. The temperature sensor is used to monitor the ambient temperature and is connected to the microprocessor module. The oscillator module has a frequency variation of only ±1% in all temperature ranges.

5. A toothbrush capable of displaying brushing intensity as claimed in claim 1, characterized in that: It also includes a Bluetooth module, and the microprocessing module is connected to the mobile terminal APP via the Bluetooth module.

6. A toothbrush capable of displaying brushing force as claimed in claim 1, characterized in that: The housing is provided with an operation button and is connected to the micro-processing module.

7. A toothbrush capable of displaying brushing intensity as claimed in claim 1, characterized in that: The shell is provided with a Type-C interface.

8. A toothbrush capable of displaying brushing intensity as claimed in claim 1, characterized in that: The power module adopts a rechargeable battery, a power monitor and a power management register. The power monitor is used to monitor the power of the rechargeable battery and send the power information to the OLED display screen for display. The power management register is used to control the toothbrush to enter a standby state.

9. A toothbrush capable of displaying brushing intensity as claimed in claim 1, characterized in that: The shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected by bolts, and a rubber sealing ring and waterproof glue are arranged on the connecting contact surfaces of the upper shell and the lower shell.

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