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Plantar pressure distribution signal acquisition system

A signal acquisition system and pressure distribution technology, applied in the measurement of fluid pressure, force measurement, simultaneous measurement of multiple hydraulic valves, etc., can solve the problem that the pressure test system is not suitable for measuring the pressure distribution of the foot, and the reliability of the pressure test system is low. , low precision and other problems, to achieve the effect of improving system reliability, simplifying circuit design, and ensuring measurement accuracy

Active Publication Date: 2009-09-02
丽荣鞋业(深圳)有限公司
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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a foot pressure distribution signal acquisition system to solve the technical problem that the traditional pressure test system is not suitable for measuring the pressure distribution of the foot; and solve the low reliability of the traditional pressure test system , low precision and high cost

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  • Plantar pressure distribution signal acquisition system
  • Plantar pressure distribution signal acquisition system
  • Plantar pressure distribution signal acquisition system

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Embodiment 1

[0044] Embodiment one sees figure 1 As shown, this foot pressure distribution signal acquisition system includes a sensing unit that can sense external pressure, an A / D conversion unit that can convert the external pressure sensed by the sensing unit into a pressure signal, and an optional sensing unit A control unit that performs voltage conversion at the sensing point, and a USB unit that can transmit the pressure signal obtained by the control unit to the host computer. see Figure 13 , the sensing unit is fixed by the positioning wrapping foot piece 1 and the foot 10 .

[0045] The invention adopts a multiplexing chip or the remaining multiplexing ports to generate identification signals to determine the starting position. In order to ensure the validity of the data, the identification signal needs to be detected before each cycle detection.

[0046] Take plantar pressure as the measurement object of embodiment, in conjunction with each accompanying drawing and embodime...

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Abstract

A plantar pressure distribution signal acquisition system comprises a sensing unit and a control unit. The sensing unit is fixed with feet by a locating foot packing sheet and is a film pressure sensing measurer comprising an upper sheet and a lower sheet; parallel copper claddings are distributed on one of the faces of the upper sheet and the lower sheet at intervals; conductive rubbers are distributed on the copper claddings at intervals, and the conductive rubbers on the upper sheet and the lower sheet are contacted with one another to form sending dots. The control unit is a main control chip; one signal input terminal of the main control chip is connected with two signal output terminals and enabling terminals of a multiplexer of the upper sheet, and the other signal input terminal of the main control chip is connected with two signal output terminals and enabling terminals of a multiplexer of the lower sheet. The system is a large-area pressure distribution measuring device by taking the conductive rubber as a sensing element, and has the advantages of high reliability and precision and low cost, can dynamically measure pressure distribution of a plane and a curved surface in a large-area range in real time, and is suitable for measuring the pressure distribution of vola, buttocks and the like.

Description

technical field [0001] The invention belongs to the technical field of pressure measurement, in particular to a test system for measuring the distribution of foot pressure. Background technique [0002] With the development of technology, the demand for contact pressure detection is also increasing. Traditional contact pressure detection mostly focuses on single point detection. However, many industries need to measure multiple points at the same time to obtain the distribution of contact pressure. In industry, the detection of surface pressure is a research hotspot in recent years. To detect the pressure distribution on a curved surface, multiple sensing points are usually placed, and the sensing unit is made of rubber filled with conductive particles. When external pressure is applied, the resistance of the conductive rubber changes, which in turn causes a change in voltage drop. By detecting the voltage drop, the magnitude and distribution of the external pressure can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L15/00G01L1/20A61B5/22
Inventor 张硕周飞蔡宇辉
Owner 丽荣鞋业(深圳)有限公司
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