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Artificial limb control method and system thereof

A control method and control system technology, applied in the field of prosthetics, can solve problems such as clumsy movements of prosthetics, heavy mental burden of prosthetic users, etc., and achieve the effect of improving convenience

Active Publication Date: 2011-03-23
SHENZHEN INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in clumsy movements in the use of prosthetics, and a large mental burden for the prosthetic user.

Method used

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  • Artificial limb control method and system thereof
  • Artificial limb control method and system thereof
  • Artificial limb control method and system thereof

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Embodiment Construction

[0024] The following embodiments disclose a technology capable of realizing multifunctional prosthetic control by decoding body surface electromyographic signals. With the advent of advanced signal processing technology and high-performance microprocessors, it is possible to realize multifunctional prosthetic control by decoding body surface electromyographic signals. The theoretical (neural electrophysiological) basis of this method is that motor nerve information can be obtained by decoding myoelectric signals. When the amputee performs different actions with the lost limb through imagination, the motor nerve signal from the brain causes the remaining muscle to contract and then use the myoelectric electrode to sense and generate an electrical signal. After the electrical signal is processed, the pattern recognition method is used to decode it. Obtain the type of limb movement that the amputee wants to do; control the prosthetic limb to complete the corresponding movement ac...

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Abstract

The invention provides an artificial limb control method which comprises the following steps: acquiring a bioelectric signal; extracting feature information of the bioelectric signal; identifying action types according to the feature information; analyzing the feature information by using a linear distinguish and analytical method and identifying the action types according to pre-stored train results, training an action classifier by a train program module; and controlling an artificial limb to complete corresponding actions according to the action types. By adopting the artificial limb control method, an artificial limb user can naturally and directly select and perform various different physical actions that the user intends to complete just like before amputation. The control technology based on action type identification can realize intuitive control of the myoelectric artificial limb so as to realize natural and intuitive control of the multifunctional artificial limb, thus enhancing use convenience of the artificial limb. In addition, the invention further provides an artificial limb control system.

Description

【Technical field】 [0001] The invention relates to artificial limb technology, in particular to an artificial limb control method and system. 【Background technique】 [0002] According to the 2006 National Bureau of Statistics sample survey data on my country's disabled population, among the various types of disabled people in the country, the physically disabled population is the largest, accounting for 24.12 million people, accounting for 29.07% of the total disabled population. Due to accidents, birth defects, diseases, natural disasters and other reasons, the number of people with physical disabilities is still increasing. In the Sichuan Wenchuan Earthquake in May 2008 alone, more than 20,000 people lost limbs. These amputees need to wear artificial limbs to assist their daily life and work. [0003] According to the control method of prosthetic limbs, the current commercial artificial limbs at home and abroad can be divided into: mechanical cable-controlled prosthetics,...

Claims

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Application Information

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IPC IPC(8): A61F2/72
Inventor 李光林周睿刘欣
Owner SHENZHEN INST OF ADVANCED TECH
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