Double source feature fusion ant colony tuning method for PID (Proportion Integration Differention) parameter in functional electro-stimulation

A functional electrical stimulation and feature fusion technology, applied in artificial respiration, physical therapy, etc., can solve problems such as deviation

Active Publication Date: 2010-09-22
大天医学工程(天津)有限公司
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to statistics, there is still little research on the trigger control of FES at present, and according to the deviation between the effect and the predetermined action, the closed-loop control is

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double source feature fusion ant colony tuning method for PID (Proportion Integration Differention) parameter in functional electro-stimulation
  • Double source feature fusion ant colony tuning method for PID (Proportion Integration Differention) parameter in functional electro-stimulation
  • Double source feature fusion ant colony tuning method for PID (Proportion Integration Differention) parameter in functional electro-stimulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The gist of the present invention is to propose a new precision control method for FES, utilize the error of the knee joint angle predicted by the HRV parameter of the walker and the joint angle predicted by the actual knee joint angle, optimize the proportional coefficient of PID by ant colony algorithm, Integral coefficient and differential coefficient, and then accurately and stably control the current intensity of the FES system in real time. The invention can effectively improve the accuracy and stability of the FES system, and obtain considerable social and economic benefits.

[0053] The structure of the application of new precision control technology in HRV-based functional electrical stimulation walking aid is as follows: figure 2 As shown, the workflow is as follows: firstly, the knee joint angle is predicted by using the HRV of the walking aid process; secondly, the ant colony algorithm is used to adjust the PID parameters, and the FES current level is adjus...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the instrument field for limbs rehabilitation by electronic impulse stimulation. The invention adopts the following technical scheme to control the current strength of an FES (Functional Electro-Simulation) system in real time accurately and stably so as to improve the accuracy and the stability of the FES system. A double source feature fusion ant colony tuning method for PID (Proportion Integration Differention) parameter in functional electro-stimulation comprises steps as follow: first, forecasting knee joint angle by a muscle model HRV in the processes of assisted walking; then, tuning the PID parameter through an ant colony optimization and adjusting current strength of the FES system in real time; controlling the PID parameter through ant colony optimization and keeping the optimization process till anticipatory goal is achieved; calculating system output and difference between the muscle model HRV with new PID parameter and then entering the step of self-learning of the ant colony optimization and self-regulating of weighting coefficient; repeating the former step for self-adapting on-line tuning of PID control parameter and using the tuned PID control parameter in the FES system. This invention is mainly applied for tuning PID parameter.

Description

technical field [0001] The invention relates to the field of equipment for limb rehabilitation by electrical pulse stimulation, in particular to a dual-source feature fusion ant colony tuning method for PID parameters in functional electrical stimulation. Background technique [0002] Functional Electrical Stimulation (FES) is a technology that stimulates limb motor muscles and peripheral nerves through current pulse sequences to effectively restore or reconstruct part of the motor function of paraplegic patients. According to statistics, due to the weak regeneration ability of the spinal cord, there is currently no effective treatment method that can directly repair the injury for paralyzed patients with spinal cord injury. The implementation of functional rehabilitation training is an effective measure. The number of paralyzed patients with spinal cord injury is increasing year by year, and functional rehabilitation training is an urgently needed technology. In the 1960s,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61N1/36
Inventor 明东张广举刘秀云朱韦西邱爽万柏坤
Owner 大天医学工程(天津)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap