Multi-mode brain machine interface wheelchair control system

A brain-computer interface and control system technology, applied in two-dimensional position/channel control, computer components, mechanical mode conversion, etc., can solve problems such as fatigue and slow detection speed

Inactive Publication Date: 2014-11-05
徐燕锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method usually needs to calculate the output by averaging the signals that the user is subjected to repeated stimuli. The detection speed is slow, and the user looks at the stimulation signal for a long time, and because it is a synchronous working method, it is easy to get tired.

Method used

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  • Multi-mode brain machine interface wheelchair control system

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Embodiment Construction

[0014] Before using the present invention, the user needs to accept some relevant trainings. It includes completing P300 and motor imagery tasks for a period of time, establishing corresponding models, and then performing computer-simulated two-dimensional motion control. The wheelchair can only be controlled after the performance of computer-simulated control meets the requirements.

[0015] The invention only uses the user's EEG signal as an input, extracts multi-dimensional control signals through corresponding signal processing and pattern recognition methods, and performs motion control of the wheelchair. When a user with movement disorders develops movement awareness, the P300 evoked potential information and motor imagery rhythm information in the brain are stimulated, and at the same time, the brain-computer interface system that comes with the wheelchair receives and extracts the signals.

[0016] The signals sent by the brain cannot be directly used as control signal...

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Abstract

The invention designs and realizes electrical wheelchair control based on a brain machine interface, so as to provide another will output way or an ability of interaction with the outside environment for the disabled of motor dysfunction or other person in related need and provide assists in the aspects of life and work. The actual system can enable the user to control steering, forward, backward, speed-up, speed-down, start, stop and the like of the wheelchair only through imagination and receiving stimulation of a vehicle-mounted computer.

Description

technical field [0001] The invention relates to a brain-computer interface wheelchair control system, which realizes a brain-computer interface system that directly controls the wheelchair through brain electricity. Background technique [0002] The concept of Brain-computer Interface (Brain-computer InterfaCe, BCI) began in 1973, which is a direct connection pathway established between the human or animal brain and external devices. Since the 1970s, with the development of neuroscience and computer technology, brain-computer interface has made great progress. At present, according to the different ways of obtaining brain signals, brain-computer interfaces can be divided into invasive and non-invasive. Implanting electrodes directly into the braincase is called invasive BCI; obtaining signals from the scalp is called non-invasive BcI. EEG (EleCtro-encephalograPhy, EEG) is a macroscopic phenomenon produced by the discharge of brain cell groups. When the brain is active, spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02G06F3/01
Inventor 徐燕锋
Owner 徐燕锋
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