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Hand posture measurement system and method based on flexible large deformation sensor

A measurement system and sensor technology, applied in the direction of measurement devices, measurement angles, instruments, etc., can solve problems such as inaccessibility, and achieve the effect of noise elimination

Inactive Publication Date: 2018-08-24
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] In rehabilitation medicine, the hospital's evaluation of the patient's recovery is mostly based on the doctor's subjective judgment. Especially in the hand rehabilitation process of stroke patients, many detailed parameters such as the degree to which the patient's hand can stretch during the rehabilitation process The change of the patient's hand, the amount of force that can be provided by the patient's hand doing isotonic exercise, etc. cannot be obtained

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  • Hand posture measurement system and method based on flexible large deformation sensor
  • Hand posture measurement system and method based on flexible large deformation sensor
  • Hand posture measurement system and method based on flexible large deformation sensor

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings:

[0035] See Figure 1-5 , The present invention is a hand posture measurement system based on a flexible large deformation sensor, including a glove body, a flexible dielectric sensor, a data acquisition module, a data analysis module, a joint angle and hand posture display module, and a power supply module; the flexible dielectric sensor and the glove The body is fully fitted, and the data acquisition module, data analysis module and power supply module are integrated in the control box.

[0036] The glove fits perfectly with the hand, and the glove has elasticity. When the hand makes a movement, the glove can achieve the same deformation as the skin. Rectangular flexible dielectric sensors are sewn on top of each joint in the glove, and corresponding wiring is laid. The sensor body can be divided into two to three sections. Each section is a capacitive dielectr...

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Abstract

The invention discloses a hand posture measurement system and method based on a flexible large deformation sensor, and the hand posture measurement system can measure and display a human hand motion in real time. The hand posture measurement system comprises three parts: a glove part, an external circuit part and a computer. The glove part is responsible for obtaining a hand posture mainly information of the bending angle of each finger joint in the motion; the external circuit is responsible for collecting a signal obtained by a capacitive flexible dielectric sensor and performing low-pass filtering on a power supply noise. The computer is responsible for processing data and converting the data obtained by the sensor into angle information, and the received real-time human posture can bedisplayed by a drawing program. The system can be, but is not limited to, used in hand posture collection for wearable devices and physician assessment of patient's hand rehabilitation during rehabilitation medical procedures.

Description

Technical field [0001] The invention belongs to the technical field of flexible dielectric sensors and hand posture measurement feedback wearable technology, and relates to a hand posture measurement system and method based on a flexible large deformation sensor. Background technique [0002] Hand is a very important medium for us to make physical contact with the outside world, and when the computer interacts with the outside world, traditional input and output devices have great limitations and cannot meet our requirements well. These traditional devices restrict the hand movement on the desktop or in a small area, and much information about the natural movement of the hand is ignored. The development process of sensing gloves is relatively slow, and there are fewer gloves for virtual reality and virtual scenes in the market. Most of them are based on radio frequency technology, image processing technology, etc. It is necessary to set up multiple cameras in a larger space, and...

Claims

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Application Information

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IPC IPC(8): G01C1/00
CPCG01C1/00
Inventor 张进华洪军李慕凡
Owner XI AN JIAOTONG UNIV
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