Multi-dimensional force and pressure distribution acquisition device

Abstract

The utility model provides a multidimensional force and pressure distribution acquisition device, which comprises a three-dimensional force measuring table and a pressure film sensor, the pressure film sensor is mounted on the three-dimensional force measuring table, the three-dimensional force measuring table comprises a base, a force signal acquisition module, a force sensor and a pedal, the force signal acquisition module is fixedly connected onto the base, and the force signal acquisition module is fixedly connected onto the pedal. The force sensor is fixedly connected to the force signal acquisition module, and the pedal is fixedly connected to the force sensor. When the sole of a human body is in contact with the pressure thin film sensor fixed at the upper end of the three-dimensional force measuring table, sole pressure distribution data and three-dimensional force / torque data can be acquired simultaneously. By means of the device, a user can comprehensively know the stress conditions of the feet in different exercise states, and powerful support is provided for the fields of exercise injury prevention, personalized exercise scheme making, rehabilitation treatment and the like. In addition, the device has the advantages of simplicity and convenience in operation, high real-time performance, high measurement precision and the like, and can be widely applied to the fields of sports, medical treatment, scientific research and the like.

Description

Technical Field

[0001] The utility model relates to the field of foot data collection, in particular to a multi-dimensional force and pressure distribution collection device. Background Art

[0002] Using only a three-dimensional force plate can only obtain force / torque data of the foot in three directions, and it is impossible to fully understand the pressure distribution of the sole of the foot. Some research or applications related to pressure distribution cannot be carried out. The pressure plate can only provide pressure distribution data on the sole of the foot, and cannot obtain three-dimensional force / torque data of the foot in the X, Y, and Z directions. For scenes that require detailed analysis of the three-dimensional force of the foot, it may not be possible to fully understand the force state and sports performance of the foot based on pressure distribution data alone, and the use of a pressure plate cannot meet the needs. Utility Model Content

[0003] The purpose of this application is to provide a multi-dimensional force and pressure distribution acquisition device, aiming to provide a device that can simultaneously collect plantar pressure distribution data and three-dimensional force / torque data, so as to comprehensively analyze the force conditions of the foot under different motion states, which can help researchers to have a more comprehensive understanding of the force conditions of the human body, improve test efficiency, meet various test needs, and provide accurate data support for sports medicine, rehabilitation medicine and other fields.

[0004] The present application provides a multi-dimensional force and pressure distribution acquisition device, including a three-dimensional force measuring platform and a pressure film sensor. The pressure film sensor is installed on the three-dimensional force measuring platform. The three-dimensional force measuring platform includes a base, a force signal acquisition module, a force sensor and a pedal. The force signal acquisition module is fixedly connected to the base, the force sensor is fixedly connected to the force signal acquisition module, and the pedal is fixedly connected to the force sensor.

[0005] Furthermore, the base is a rectangular parallelepiped without a cover.

[0006] Furthermore, the pedal is in the shape of a flat rectangular parallelepiped, and four sides of the outer contour of the lower surface of the pedal are in contact with four sides of the outer contour of the uncovered surface of the base, and a PET substrate A is fixedly attached to the pedal.

[0007] Furthermore, there are five force signal acquisition modules in total, which are in the form of rectangular parallelepipeds. The five force signal acquisition modules are respectively fixed at four vertices and a center of the lower inner surface of the base.

[0008] Furthermore, there are five force sensors in total in the form of rectangular parallelepiped, the lower surfaces of the force sensors are respectively fixedly connected to the upper surfaces of five force signal acquisition modules, and the upper surfaces of the force sensors are tightly connected to the lower surface of the pedal.

[0009] Furthermore, a flexible hinge is arranged inside the force sensor, and a protective shell is arranged outside the force sensor.

[0010] Furthermore, the pressure film sensor comprises row electrodes, pressure-sensitive conductive sheets and column electrodes. The pressure-sensitive conductive sheets are fixedly attached to the upper ends of the row electrodes, and the column electrodes are fixedly attached to the upper ends of the pressure-sensitive conductive sheets.

[0011] Furthermore, the row electrodes are fixedly attached to the PET substrate A, and the upper ends of the column electrodes are fixedly attached to the PET substrate B.

[0012] Furthermore, the projected areas directly above the row electrodes, the pressure-sensitive conductive sheet, the column electrodes, the PET substrate A and the PET substrate B are equal.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a device capable of simultaneously collecting plantar pressure distribution data and three-dimensional force / torque data. Through the device, the user can fully understand the force conditions of the foot under different motion states, and provide strong support for sports injury prevention, personalized exercise program formulation, rehabilitation treatment and other fields. In addition, the device has the advantages of simple operation, strong real-time performance, high measurement accuracy, etc., and can be widely used in sports, medical treatment, scientific research and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 Schematic diagram of the internal structure of the three-dimensional force platform.

[0016] Figure 3 Schematic diagram of the pressure film sensor structure.

[0017] In the figure:

[0018] 1- three-dimensional force measuring platform; 2- pressure film sensor; 3- base; 4- pedal; 5- force sensor; 6- flexible hinge; 7- protective shell; 8- force signal acquisition module; 9- row electrode; 10- pressure-sensitive conductive sheet; 11- column electrode. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-3A multi-dimensional force and pressure distribution acquisition device shown includes a three-dimensional force measuring platform 1 and a pressure film sensor 2. The pressure film sensor 2 is installed on the three-dimensional force measuring platform 1. The three-dimensional force measuring platform 1 includes a base 3, a force signal acquisition module 8, a force sensor 5 and a pedal 4. The force signal acquisition module 8 is fixedly connected to the base 3, the force sensor 5 is fixedly connected to the force signal acquisition module 8, and the pedal 4 is fixedly connected to the force sensor 5.

[0021] The base 3 is in the form of a rectangular parallelepiped without a cover.

[0022] The pedal 4 is in the shape of a flat rectangular parallelepiped, and the four sides of the outer contour of the lower surface of the pedal 4 are in contact with the four sides of the outer contour of the uncovered surface of the base 3 . A PET substrate A is fixedly attached to the pedal 4 .

[0023] There are five force signal acquisition modules 8 in total, which are rectangular parallelepiped. The five force signal acquisition modules 8 are respectively fixed at four vertices and the center of the inner surface below the base 3, and multi-point data acquisition makes the data more accurate.

[0024] There are five force sensors 5 in total, which are rectangular parallelepiped, and the lower surfaces of the force sensors 5 are respectively fixedly connected to the upper surfaces of the five force signal acquisition modules 8, and the upper surfaces of the force sensors 5 are tightly connected to the lower surface of the pedal 4. The array of five force sensors 5 collects three-dimensional force data, and the test accuracy is higher.

[0025] A flexible hinge 6 is provided inside the force sensor 5 to improve the pressure sensing accuracy; a protective shell 7 is provided outside the force sensor 5 to prevent the force sensor from being damaged.

[0026] The pressure film sensor 2 includes row electrodes 9 , a pressure-sensitive conductive sheet 10 and a column electrode 11 . The pressure-sensitive conductive sheet 10 is fixedly attached to the upper end of the row electrode 9 , and the column electrode 11 is fixedly attached to the upper end of the pressure-sensitive conductive sheet 10 .

[0027] The row electrodes 9 are fixedly attached to the PET substrate A, and the upper ends of the column electrodes 11 are fixedly attached to the PET substrate B. The PET substrate A and the PET substrate B greatly enhance the bending and shearing resistance of the pressure film sensor 2.

[0028] The projected areas directly above the row electrodes 9, the pressure-sensitive conductive sheet 10, the column electrodes 11, the PET substrate A and the PET substrate B are equal.

[0029] The sole of the human foot contacts the pressure film sensor 2 fixed on the upper end of the three-dimensional force measuring platform 1, so that the sole pressure distribution data and the three-dimensional force / torque data can be collected simultaneously.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-dimensional force and pressure distribution acquisition device, characterized in that: It includes a three-dimensional force platform and a pressure film sensor. The pressure film sensor is installed on the three-dimensional force platform. The three-dimensional force platform includes a base, a force signal acquisition module, a force sensor and a pedal. The force signal acquisition module is fixedly connected to the base. There are five force signal acquisition modules in total, which are rectangular parallelepiped. The five force signal acquisition modules are respectively fixed on the four vertices and the center of the inner surface below the base; the force sensor is fixedly connected to the force signal acquisition module, and the pedal is fixedly connected to the force sensor. There are five force sensors in total, which are rectangular parallelepiped. The lower surfaces of the force sensors are respectively fixedly connected to the upper surfaces of the five force signal acquisition modules, and the upper surfaces of the force sensors are tightly connected to the lower surfaces of the pedals.

2. The multi-dimensional force and pressure distribution acquisition device according to claim 1, characterized in that: The base is in the form of a rectangular parallelepiped without a cover.

3. The multi-dimensional force and pressure distribution acquisition device according to claim 1, characterized in that: The pedal is in the shape of a flat rectangular parallelepiped, and the four sides of the outer contour of the lower surface of the pedal are in contact with the four sides of the outer contour of the base without a cover surface, and a PET substrate A is fixedly attached to the pedal.

4. The multi-dimensional force and pressure distribution acquisition device according to claim 1, characterized in that: A flexible hinge is arranged inside the force sensor, and a protective shell is arranged outside the force sensor.

5. The multi-dimensional force and pressure distribution acquisition device according to claim 1, characterized in that: The pressure film sensor comprises row electrodes, pressure-sensitive conductive sheets and column electrodes. The pressure-sensitive conductive sheets are fixedly attached to the upper ends of the row electrodes, and the column electrodes are fixedly attached to the upper ends of the pressure-sensitive conductive sheets.

6. The multi-dimensional force and pressure distribution acquisition device according to claim 5, characterized in that: The row electrodes are fixedly attached to the PET substrate A, and the upper ends of the column electrodes are fixedly attached to the PET substrate B.

7. The multi-dimensional force and pressure distribution acquisition device according to claim 5 or claim 6, characterized in that: The projected areas directly above the row electrodes, the pressure-sensitive conductive sheet, the column electrodes, the PET substrate A and the PET substrate B are equal.

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