Wearable multi-dimensional gait analysis system and method

Abstract

The invention discloses a wearable multi-dimensional gait analysis system and method which comprises inertia measurement sensors, pressure sensors, surface myoelectricity sensors, a data router and an upper computer, and data measured by the sensors are sent to the upper computer through the data router in a wireless mode. The analysis method comprises the steps: wearing the sensors: the pressure sensors are installed in the shoes, the inertia measurement sensors are installed on the waist, the thighs, the shanks and the feet respectively, and the surface myoelectricity sensors are installed on the muscle skin surfaces respectively; gait data measurement: a subject walks, and all sensors send data to the upper computer in the wireless mode through a microprocessor; preprocessing: the upper computer collects data from the pressure sensors, the inertia measurement sensors and the surface myoelectricity sensors and receives the data through the data router, and filters and resolves the data; and multi-dimensional gait analysis: carrying out multi-dimensional gait analysis according to the variables. The gait behavior and movement mechanism of the wearer can be analyzed in multiple dimensions.

Description

technical field [0001] The invention belongs to the technical field of wearable design, and relates to a wearable multi-dimensional gait analysis system and method, which can be used for motion detection, biomechanical measurement and medical gait analysis. Background technique [0002] With the development of economy and society and the increase of population aging, people pay more and more attention to their own health problems. Gait analysis is mainly used in the field of sports and health. It mainly evaluates the movement ability of the human body. For example, it can be used for quantitative evaluation of walking ability of patients with hemiplegia, Parkinson's, cerebral palsy, and joint replacement, helping doctors to formulate appropriate treatment plans and rehabilitation training; At the same time, it can also be used for sports training of high-level athletes, and assist in the development of exoskeleton, intelligent prosthetics and other equipment. [0003] Gait ...

AI Technical Summary

Problems solved by technology

The fixed gait analysis system is relatively mature. Generally, a motion capture system and a six-dimensional force treadmill are used to measure kinematics and ground reaction force data, and then the joint angle and joint torque are obtained by solving inverse kinematics and inverse dynamics through biomechanical software. , high measurement accuracy but expensive, and bulky and unable to move; with the rise of smart wearable technology, wearable gait analysis systems have gradually developed, but existing wearable gait analysis systems often have some limitations

Some wearable gait analysis systems only contain a single type of sensor and cannot measure multi-dimensional information of gait movement.

[0004] According to the search of patent documents: the system involved in the invention patent application CN110638462A only contains plantar pressure sensors, and cannot obtain the kinematic information of gait; the system involved in the invention patent application CN108697377A only contains inertial sensors, and cannot measure the ground reaction force of motion information

Other wearable gait analysis systems use multi-sensor solutions, but only simply extract the respective characteristics of the sensors. For example, the patent application CN109730687A uses pressure sensors and inertial sensors, and the patent application CN105631195B uses flexible sensors and inertial sensors. These systems are often only sufficient The kinematic analysis and ground reaction force analysis of the upper body and lower leg cannot be combined with kinematic data and ground reaction force data for dynamic analysis and physiological analysis of the whole lower limb

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