Intelligent toothbrush tooth brushing way detection method and intelligent toothbrush tooth brushing way detection system

Abstract

The invention discloses an intelligent toothbrush tooth brushing way detection method and an intelligent toothbrush tooth brushing way detection system. The intelligent toothbrush tooth brushing way detection method comprises: 1) arranging an acceleration sensor and a data processing unit in a toothbrush, and transmitting the collected three-axis acceleration data AccX, AccY and AccZ to the data processing unit; and 2) calculating the change degrees of AccX, AccY and AccZ by using the data processing unit, wherein the current tooth brushing way is judged as the Bass Method if the three acceleration data are changed and the change degrees do not exceed the set thresholds or the sum of the three degrees of the three acceleration data is less than a set Bass threshold, the current tooth brushing way is judged as the horizontal brushing if the change degree of AccY is large than a set horizontal brushing threshold, and the current tooth brushing way is judged as the vertical tooth brushing if the sum of the change degrees of AccX and AccZ is greater than a set vertical brushing threshold, or the current tooth brushing way is judged as the vertical tooth brushing if the change degree of AccZ is greater than a set vertical tooth brushing. The method and the system of the present invention have high practicability.

Description

technical field [0001] The invention relates to a toothbrushing mode detection method and system of an intelligent toothbrush, capable of detecting various toothbrushing methods, such as Papanicolaou method, horizontal brushing method and vertical brushing method. Background technique [0002] Common two modes when people brush their teeth are relative to the head level, left and right, moving the toothbrush horizontally (i.e. the horizontal brushing method) and vertically moving the toothbrush up and down relative to the head (i.e. the vertical brushing method). Dentists generally believe that the horizontal brushing method is the most damaging to the teeth, and the vertical brushing method can also damage the teeth. [0003] The American Dental Association recommends the Papanicolaou tooth brushing method, which requires the bristles to be at a 45° angle to the long axis of the teeth, and the bristles point to the root of the tooth (the upper teeth are up, and the lower te...

AI Technical Summary

Problems solved by technology

However, the above patents do not provide detection methods for detecting correct or wrong brushing methods such as vertical brushing, horizontal brushing, and Pap brushing, so that the user's wrong brushing method cannot be corrected in time; Amplitude and frequency cannot correctly judge Pap tooth brushing method

[0008] The invention "US 2015 / 0044629 A1" proposes to use the yaw angle yaw to estimate which tooth area the toothbrush is brushing, but it does not take into account that many people bow their heads when brushing their teeth, and the degree of bowing of each person's teeth is different; in fact If the person lowers his head at an angle of 90 degrees, using yaw to estimate is completely invalid

In addition, the invention requires the user to follow the head posture required by the invention to be effective, which is inconvenient in actual use

[0009] The above inventions and disclosed methods have some deficiencies and shortcomings: there is no detection of wrong brushing methods such as vertical brushes and horizontal brushes; it is impossible to detect or educate users to use the correct Pap brushing method; Effectively detect the method of horizontal brush, vertical brush, and Pasteur brushing method; there is no simple and effective method for estimating which tooth area the toothbrush is brushing by using only the accelerometer sensor; the factor of lowering the head when people brush their teeth is not considered. estimated impact

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