Method and system for quickly identifying three-dimensional position of tongue based on magnetic mark

Abstract

The invention relates to the field of rehabilitation apparatus control, and discloses a method and a system for quickly identifying a three-dimensional position of a tongue based on a magnetic mark. The system for quickly identifying the three-dimensional position of the tongue based on the magnetic mark comprises a permanent magnet arranged at the tip of the tongue, a head-mounted magnetic sensor, a sensor array and a neural network, the head-mounted magnetic sensor senses the magnetic field around the permanent magnet, the sensor array senses the magnetic induction intensity of the permanent magnet, and the input end of the neural network is in communication connection with the output end of the head-mounted sensor. The three-dimensional position information of the tongue can be quickly output by sensing the magnetic field around the permanent magnet through the head-mounted magnetic sensor and the sensor array, the problem that the nonlinear calculation optimization speed is low is solved by outputting the three-dimensional position information through the neural network, and quick recognition is ensured; the method is adaptive to people with different head sizes, and is portable.

Description

technical field [0001] The invention relates to the field of rehabilitation equipment control, in particular to a method and system for quickly identifying the three-dimensional position of the tongue based on magnetic markers. Background technique [0002] Paralysis of the upper limbs due to stroke, spinal cord injury or accidents makes patients lose the ability to live independently. In order to ensure their normal life, their families and medical staff need to spend a lot of time and energy, which not only increases the burden on others , and lowered the patient's personal self-esteem. The emergence of assistive robots allows paralyzed patients to gain part of the ability to live independently, but for those patients with little residual mobility, they cannot "output" enough commands to control the assistive robot. It is worth noting that the more mobility The fewer patients, the less they can output enough commands, but the more they need an auxiliary robot with complex...

AI Technical Summary

Problems solved by technology

[0005] There are two ways to realize the three-dimensional position recognition of the tongue based on magnetic markers. One is to use the sensor array to find the inverse solution according to the magnetic dipole model. This method can be adapted to each person, but it cannot be portable because the sensor array is separated from the human body. The speed of nonlinear optimization is slow, and the real-time performance is not high, so the actual use value is not high; the other is the method of using neural network, which has fast recognition speed and real-time performance, but the existing research uses The locator that simulates the position of the tongue to obtain the training data of the neural network, the trained network cannot be adapted to everyone

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