Human body acupoint location-based multi-channel human body lower limb movement information acquisition system and method

Abstract

The invention discloses a human body acupoint location-based multi-channel human body lower limb movement information acquisition system and method, and the system comprises an inertial sensor unit, a Bluetooth transmission unit, afield programmable gate array(FPGA) processor and an upper computer unit, wherein the inertial sensor unit comprises a plurality of inertial sensors; each inertial sensor is placed at an acupuncture point of a human body to calibrate a position where the inertial sensor is placed and acquire posture information of the human body; the posture information is a rotation angle of the inertial sensor; the Bluetooth transmission unit comprises a Bluetooth master module and a Bluetooth slave module which are matched with each other, and the Bluetooth master module is connected with the FPGA processor; the Bluetooth slave module is connected with the inertial sensor unit; the FPGA processor is used for carrying out temporary storage and synchronous clock processing on the posture information transmitted by the Bluetooth transmission unit by utilizing first in first out (FIFO) and then transmitting the processed posture information to the upper computer unit; and the upper computer unit is used for resolving a joint angle by utilizing the posture information and a joint angle resolving algorithm, generating movement information and displaying the joint angle and the movement information. The invention can perform acquisition for different groups of people, reduces the data acquisition error, and has universality.

Description

technical field [0001] The present invention relates to the technical field of collection systems and methods, and more specifically, to a multi-channel system and method for collecting movement information of lower limbs of a human body based on the positioning of human acupoints. Background technique [0002] The movement information of the lower limbs of the human body refers to the change of the angle of each joint during the movement of the lower limbs of the human body, and is the most direct kinematic parameter reflecting the state of the human gait movement. Therefore, the closer to the real motion information of the human body, the more important and meaningful it is for the analysis of human gait or the design and research of lower extremity exoskeleton mechanisms. As an acquisition system, the key lies in the design of acquisition and transmission schemes. In the early acquisition systems, most of the acquisition systems were worn by the human body to measure the ...

AI Technical Summary

Problems solved by technology

However, in the inertial system, because the sensor is more sensitive, there is a large randomness in the location of the sensor during the acquisition process, and each individual is also different, and the collected data has a large error

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