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Human body pressure center measuring method and device based on single-component force sensor

A force sensor, human pressure technology, applied in the direction of sensor, diagnostic recording/measurement, medical science, etc., can solve the problems of strain gage cloth design and patch process, complex calibration process, etc., to simplify the layout design and production requirements and Calibration process, reduced requirements, effect of high lateral load resistance

Pending Publication Date: 2022-05-31
SHANGHAI JIAO TONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the defects of the prior art sensor's strain gauge cloth design, patching process, and complicated calibration process, and proposes a method and device for measuring the pressure center of a human body based on a single-component force sensor, through which four single-component force sensors are sensitive The vertical support force is used to solve the coordinates of the human body pressure center, which significantly simplifies the layout design and production requirements of the strain gauge of the resistance strain sensor

Method used

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  • Human body pressure center measuring method and device based on single-component force sensor
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  • Human body pressure center measuring method and device based on single-component force sensor

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Embodiment Construction

[0019] This embodiment relates to a method for measuring the pressure center of a human body based on a single-component force sensor based on load distribution. The coordinate system oxyz is established on the table top of the four-corner support force measuring platform, and the o point is located at the geometric center of the table. The person stands on the force measuring platform. The perpendicular drawn from the center of gravity intersects the xoy plane at (x COP ,y COP ) point, that is, the coordinates of the pressure center are (x COP ,y COP ), let the weight of the human body be W, and the supporting forces at the four supports be F A , F B , F C and F D , the static equilibrium equation is W=F A +F B +F C +F D , the moment balance equation is CoP coordinates (x COP ,y COP ).

[0020] Such as figure 2 As shown, the four-corner support force measuring platform includes: pedals and four single-component force sensors A, B, C and D symmetrically configu...

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Abstract

The invention discloses a human body pressure center measuring method and device based on a single-component force sensor, and the method comprises the steps: enabling a user to stand on a four-corner supporting force measurement platform, enabling the supporting forces at four supporting positions to be FA, FB, FC and FD respectively, enabling the distance between supporting points in the x direction to be a, enabling the distance between the supporting points in the y direction to be b, building a coordinate system oxyz on the platform, enabling the point o to be located at the geometric center of the platform, and enabling the point o to be located at the geometric center of the platform; according to the method, the strain gauge layout design and manufacturing requirements of the resistance strain sensor are remarkably simplified, the requirements for calibration equipment are reduced, and the calibration process is simplified.

Description

technical field [0001] The invention relates to a technology in the field of medical rehabilitation equipment, in particular to a method and device for measuring the center of pressure of a human body based on a single-component force sensor. Background technique [0002] The center of pressure of the human body refers to the projection of the center of gravity of the human body on its support surface, and the trajectory of the center of pressure is an important basis for the evaluation of the human body's standing balance function. Those with normal balance function have a small track range of the pressure center and a short track line length; if the track range of the pressure center increases and the track line becomes longer, it indicates that the balance ability is reduced. [0003] At present, the widely recognized and applied measurement equipment for the center of human pressure is the multidimensional force plate. A multidimensional force plate measures the forces ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B5/4023
Inventor 蔡萍王天仪王伟达蒋浩强胡权
Owner SHANGHAI JIAO TONG UNIV
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