Real-time detection evaluation system for human foot dynamic mechanics and method

A dynamic mechanics and real-time detection technology, which is applied in the measurement of the property and force of piezoelectric resistance materials, etc., can solve the problem of the large space limitation of the rectangular pressure distribution plate, affecting the accuracy of data, and the inability to form a dynamic mechanical information evaluation method for human feet, etc. problem, to achieve the effect of accurate detection data, improved accuracy, and wide application range

Inactive Publication Date: 2017-04-26
OCEAN UNIV OF CHINA
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AI Technical Summary

Problems solved by technology

[0003] 1. The insole-type pressure distribution is based on shoes. In actual testing, it often occurs that the pressure distribution and shoes cannot be optimally matched, which affects the accuracy of the test results;
[0004] 2. The insole-like pressure distribution cannot detect the spatial domain parameters of the gait during walking;
[0005] 3. Rectangular pressure distribution plate is limited by space, so long-distance detection cannot be achieved, thus affecting data accuracy;
[0006] 4. Both of them can only detect the vertical force, and cannot obtain three-dimensional space data such as the shear force and moment of the foot in the front, back, left and right directions;
[0007] 5. Neither of them can obtain the angle data

Method used

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  • Real-time detection evaluation system for human foot dynamic mechanics and method
  • Real-time detection evaluation system for human foot dynamic mechanics and method
  • Real-time detection evaluation system for human foot dynamic mechanics and method

Examples

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Embodiment 2

[0072] The thin-film circular pressure distribution micromechanical information sensor adopts the principle of piezoresistive array pressure sensor, so it can obtain real-time color images of the pressure on the contact surface according to the force on the sensor.

[0073] The five axes in the miniature five-axis macro five-axis macro mechanical sensor are forces in three directions: vertical force (Fz), shear force in the front and rear directions (Fx), shear force in the left and right directions (Fy), and moments in two directions: Mx, My;

[0074] The motion sensing and tracking component is used to track and measure the angle, angular acceleration, and linear acceleration of the real-time contact between the foot and the ground. The MPU-9150 attitude tracking component of InvenSense is used, and the WIFI communication method is adopted. The two motion sensing and tracking components are respectively fixed. On the upper of a sneaker with holes on the instep.

[0075] Mot...

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Abstract

The invention relates to a real-time detection evaluation system for human foot dynamic mechanics and a method. A first sensing device of the system is used for detecting a vertical force, a shear force and a torque of a foot sole and generating first detection data; a second sensing device is used for detecting an average pressure value and a peak pressure value of the foot sole and a contact area between the foot sole and the ground and generating second detection data; a motion sensing trace component is used for detecting a real-time contact angle between the foot and the ground, an accelerated speed and a linear acceleration and generating third detection data; a data processing transmission module is used for respectively packaging and processing the first detection data, the second detection data and the third detection data into a data packet; an upper computer is used for unpacking, integrating and converting the data packet, calibrating and calculating the coefficient, extracting, analyzing and displaying the data, modeling the data feature, evaluating the relation between real-time progressing and data and acquiring human foot dynamic mechanic characteristics. The real-time detection evaluation system for human foot dynamic mechanics has the advantages of wide application scope, capability of detecting tread time-space domain parameters, accurate detection data and accurate evaluation.

Description

technical field [0001] The invention relates to the technical field of body detection, in particular to a system and method for real-time detection and evaluation of human foot dynamics. Background technique [0002] At present, the force analysis tools for human feet during exercise mainly use insole-type pressure distribution or rectangular pressure distribution detection boards. The basic principles of these two devices use pressure distribution sensors to collect the contact surface pressure between the foot and the ground. , and then calculate the vertical force and other derived parameters in the ground reaction force. The disadvantages of these two devices are: [0003] 1. The insole-type pressure distribution is based on shoes. In actual testing, it often occurs that the pressure distribution and shoes cannot be optimally matched, which affects the accuracy of the test results; [0004] 2. The insole-like pressure distribution cannot detect the spatial domain parame...

Claims

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Application Information

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IPC IPC(8): G01L1/18
CPCG01L1/18
Inventor 李世明庄建海李强许全盛毛旭江高雅楠赵玥宫炜男
Owner OCEAN UNIV OF CHINA
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