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Wearable gait detection method and device based on calf and foot during walking

A gait detection and calf technology, which is applied in the directions of diagnostic recording/measurement, medical science, diagnosis, etc. Effect

Active Publication Date: 2020-08-07
SHANGHAI INNOMOTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Gait refers to a periodic form and appearance of people or animals moving and moving forward through limbs. Gait is different from walking. Walking is a process, but gait is a form. Gait can be described by the characteristics of human walking. A periodic phenomenon, and each cycle can be divided into multiple parts for analysis, and then the individual walking ability is evaluated according to the analysis results; for the detection of gait, most of the existing technologies are based on the sole design of pressure sensors and angular velocity sensors etc., not only the structural design is complicated, but also the calculation process of gait analysis is also complicated

Method used

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  • Wearable gait detection method and device based on calf and foot during walking
  • Wearable gait detection method and device based on calf and foot during walking
  • Wearable gait detection method and device based on calf and foot during walking

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Experimental program
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Embodiment 1

[0032] The schematic diagram of the subject walking is as follows figure 1 As shown, the gait cycle is also called the walking cycle (GC), and the gait cycle phase includes the support phase and the swing phase. The support stage includes the following five stages:

[0033] (1) Initial contact (IC): refers to the moment when the heel touches the ground, decelerates the forward movement of the lower limb, and determines the position where the foot enters the support stage. Therefore, it is the most common cause of abnormal support stage. About 2% of GC;

[0034] (2) Loading response (LR): refers to the process of transferring the center of gravity from the heel to the full foot after the first touchdown, accounting for about 10% of the GC;

[0035] (3) Mid-stage support phase (midance, MS): refers to the time in the middle stage of support phase. At this time, the supporting foot is all on the ground, and the contralateral foot is in the swing phase, which is the only phase ...

Embodiment 2

[0054] Based on Embodiment 1, this embodiment provides a wearable gait detection device based on calves and feet during walking, including a processor and an L-shaped detector worn on the calf and feet of a subject. Detector wireless signal connection.

[0055] The L-shaped detector collects the dynamic force exerted on the subject's calf during walking, and transmits the dynamic force to the processor; the processor converts the dynamic force and torque into the corresponding pressure according to preset rules The processor further divides the gait cycle of the pressure curve according to the preset rule and the periodic change rule of the dynamic force, and analyzes the walking gait of the subject according to the distribution of the dynamic force on the pressure curve.

[0056] The preset rule in this example is: the compressive force and the pulling force generated by the subject during walking are formed into a pressure curve in chronological order, and the compressive fo...

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Abstract

The invention provides a wearable gait detection method based on the shanks and the feet used during walking. A device comprises L-shaped detectors worn on the shanks and the feet of a tested person. The gait detection method comprises the following steps: collecting dynamic force exerted by the shanks of the tested person to the L-shaped detectors in the walking process of the tested person, and converting the dynamic force and the torque into a corresponding pressure curve according to a preset rule; carrying out gait cycle segmentation on the pressure curve according to the preset rule and the periodic change rule of the dynamic force; and analyzing the walking gait of the tested person according to the distribution of the dynamic force on the pressure curve. When the tested person walks, the gait of the tested person is analyzed by analyzing changes of the dynamic force exerted by the shanks of the tested person, the total number of steps in the walking process of the tested person can be counted according to the periodic changes of the pressure curve, the dynamic force needed by the gait analysis process is obtained through searching according to the pressure curve, and thus a complicated calculation process is not involved; in addition, the device is extremely easy to wear and operate, and thus the gait analysis process is simplified.

Description

technical field [0001] The invention relates to the technical field of gait detection, in particular to a wearable gait detection method and device based on calves and feet during walking. Background technique [0002] Gait refers to a periodic form and appearance of people or animals moving forward through limbs. Gait is different from walking. Walking is a process, while gait is a form. Gait can be described as a characteristic of human walking. A periodic phenomenon, and each cycle can be divided into multiple parts for analysis, and then the individual walking ability is evaluated according to the analysis results; for the detection of gait, the existing technologies are mostly based on the sole design of pressure sensors and angular velocity sensors. etc., not only the structural design is complex, but also the calculation process of gait analysis is more complicated. SUMMARY OF THE INVENTION [0003] The present application provides a wearable gait detection method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11A61B5/00
CPCA61B5/112A61B5/6802A61B5/6828A61B5/6829
Inventor 皇甫良王少白
Owner SHANGHAI INNOMOTION