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Array pressure sensor and pressure acquisition system

A pressure sensor and acquisition system technology, which is applied in the direction of sensors, instruments, and measuring forces, can solve the problems of pressure sensors with a small number of sensor units, low measurement accuracy, and inability to display plantar pressure data, so as to reduce design difficulty and reduce Effect of Wire Count and Routing Density

Inactive Publication Date: 2019-03-08
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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AI Technical Summary

Problems solved by technology

The array pressure sensor used for plantar pressure measurement in China has a small number of sensor units and low measurement accuracy, which cannot meet the needs of professional fields such as rehabilitation medicine. The main reason is that it cannot perform real-time dynamic overall display of plantar pressure data.

Method used

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  • Array pressure sensor and pressure acquisition system
  • Array pressure sensor and pressure acquisition system

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Experimental program
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Embodiment 1

[0029] Please refer to figure 1 , is a structural schematic diagram of an array pressure sensor in an embodiment, the array pressure sensor includes a row wire layer 21 , a resistive pressure sensing layer 10 and a column wire layer 22 that are sequentially laminated. In one embodiment, the array pressure sensor can be a flexible sheet structure.

[0030] The row wire layer 21 includes a plurality of wires arranged along a first direction on one side of the resistive pressure sensing layer. The column wire layer 22 includes a plurality of wires arranged along the second direction on the other side of the resistive pressure sensing layer. In one embodiment, the first direction is perpendicular to the second direction, for example, the first direction is a row direction, and the second direction is a column direction. The wires in the row wire layer 21 and the column wire layer 22 can be strip conductors with a certain width, and the strip conductors can be made of gold, silve...

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Abstract

The invention provides an array pressure sensor and pressure acquisition system for plantar pressure acquisition. The array pressure sensor and the pressure acquisition system are characterized in that the common row pressure sensing points of the array pressure sensor share the row lead wire, and the common column pressure sensing points share one column lead wire, and double surface wiring are performed on the row wire and the column wire, so as to enable the array pressure sensor to reduce the number and the wiring density of wire leads and reduce the design difficulty of the large-size array pressure sensor, thereby satisfying the increase of the pressure sensing area while ensuring the spatial resolution and sampling rate of the sampling. The invention also discloses a pressure acquisition system which is designed based on the array pressure sensor. The pressure acquisition system performs sampling on the array pressure sensor by means of the row sharing, column sharing and time sharing sampling method, so as to realize acquisition of the plantar pressure data in the natural walking state and guarantee accuracy and stability of the pressure acquisition system.

Description

technical field [0001] The invention relates to the field of pressure measurement, in particular to an array pressure sensor and a pressure acquisition system. Background technique [0002] Plantar pressure refers to the pressure field that acts between the human foot and the supporting surface during daily sports activities. Due to the characteristics of the structure of the human foot, when the human body steps on the ground, different pressures will be generated at each point of the foot. By testing and analyzing the pressure of the foot, the physiological and pathological parameters of the human body in various postures and movements can be obtained. and functional parameters. For example, the collection and analysis of plantar pressure can be applied to walking rehabilitation training after stroke. By analyzing the patient's gait characteristics and exertion methods, it can provide effective information for doctors to evaluate the patient's rehabilitation and formulate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22A61B5/103
CPCA61B5/1038G01L1/2287
Inventor 王墨王新安何春舅陈红英樊卓宸马浩彭晨张思旭
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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