Intelligent wheelchair system based on SSVEP (steady-state visual evoked potential)

A steady-state vision-induced, electric wheelchair technology, applied in patient chairs or special transportation tools, vehicle ambulance, medical transportation, etc., can solve the problem that the needs of the elderly and the disabled are not fully considered, and the wheelchair design is not enough Perfect, not suitable for the elderly, etc., to achieve the effect of improving the use value, reducing the load, and reducing the workload

Inactive Publication Date: 2013-08-28
XIDIAN UNIV
View PDF4 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) It requires high concentration and is not suitable for the elderly;
[0005] 2) The accuracy rate is low, and the online accuracy rate is about 85%;
[0006] 3) There are only two degrees of freedom left and right,

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
  • Intelligent wheelchair system based on SSVEP (steady-state visual evoked potential)
  • Intelligent wheelchair system based on SSVEP (steady-state visual evoked potential)
  • Intelligent wheelchair system based on SSVEP (steady-state visual evoked potential)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Hereinafter, the invention will now be described more fully with reference to the accompanying drawings, in which various embodiments are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0033] The implementation principle and application of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] refer to figure 1 , the system of the present invention includes LED strobe stimulator 1, electrode cap 2, EEG preprocessing circuit 3, wireless transmission system 4, host computer 5, wheelchair control circuit 6, electric wheelchair 7 and automatic obstacle avoidance module 8; electrode cap 2 is connected with the EEG preprocessing circuit 3 through wi...

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 discloses an intelligent wheelchair system based on SSVEP (steady-state visual evoked potential), and aims to solve the problems of high requirements on a user, less control commands and imperfect wheelchair functions of existing device during the process of using electroencephalogram to control a wheelchair. The intelligent wheelchair system comprises an LED strobe stimulator (1), an electrode cap (2), an electroencephalogram pre-processing circuit (3), a wireless transmission system (4), an upper computer (5), a wheelchair control circuit (6), an electric wheelchair (7), and an automatic obstacle avoidance module (8). Electroencephalogram signals collected by the electrode cap (2) are pre-processed through the electroencephalogram pre-processing circuit (3) and then are transmitted to the upper computer (5) through the wireless transmission system (4) to process and generate control signals, and the control signals are transmitted through the wireless transmission system (4) to the wheelchair control circuit (6) to control the wheelchair. The intelligent wheelchair system has the advantages of convenience in operation and safety in use, and can serve as an assisting tool for the old and the disabled.

Description

technical field [0001] The present invention relates to an intelligent wheelchair system based on SSVEP (steady-state visual evoked potentials), specifically refers to collecting the EEG signals generated when the user gazes at different frequency flickering stimuli, and judging the user's gaze by analyzing the specificity of the signals at different frequencies. Which frequency is the flickering, and to control the control system of the electric wheelchair. The invention is a combined application of the field of cognitive neuroscience and the field of electronic engineering technology, and belongs to the field of automatic control. Background technique [0002] At present, the problem of aging in the world, especially in developing countries such as China and India, is increasing day by day. Due to the decrease in the proportion of young people, the quality of life of the elderly is greatly reduced. Most of the elderly are inconvenient or unable to move independently. Looki...

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): A61G5/10A61G5/04
Inventor 刘鹏李岩聂英男殷朋举秦伟
Owner XIDIAN UNIV
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