Intelligent wheelchair man-machine interaction control system and method based on eye movement recognition

Abstract

The invention discloses an intelligent wheelchair man-machine interaction control system and an intelligent wheelchair man-machine interaction control method based on eye movement recognition. According to the system and the method, an electromyographic signal acquisition module is used for collecting electromyographic signals of the eyes, characteristic selection is carried out on the electromyographic signals, eye movement recognition is carried out according to the electromyographic characteristic change difference during blink, thus the accurate judgment on the conscious blinking is realized, further, the accurate control over the direction of a wheelchair is realized by combining a plurality of conscious blinking modes, a fuzzy controller part takes a signal electromyographic integral value and signal slope as input and the running speed of the intelligent wheelchair as output, then a two-dimensional structure fuzzy controller with two inputs and single output is built, and thus the accurate control over the running speed of the wheelchair is realized. According to the system and the method, the scheme is diversified, the operation mode is simple, convenient and rapid, the learning is easy, the special requirements of old people and disabled people in the control mode are fully considered, the control problem of the intelligent wheelchair system caused by the fact that a traditional control mode is not flexible in operation and a user responds slowly is avoided, and the practical requirements of the old people and the disabled people are well adapted.

Description

Technical field [0001] The invention belongs to the technical field of intelligent wheelchair human-machine interactive control, and particularly relates to a human-machine interactive control system and method for the elderly and disabled intelligent wheelchair based on eye movement recognition. Background technique [0002] With the rapid development of modern intelligent system technology, ensuring and improving the quality of life of the elderly and the disabled, and assisting the rehabilitation of the disabled have attracted more and more attention from people from all walks of life. The research of smart wheelchairs has a history of more than 30 years, and the manufacturing level, mechanical technology and frame structure have reached a good level, but in terms of control methods and control systems, there is still a lot of room for the different needs of different people. You can go to research and development. In the control of smart wheelchairs, new control methods such...

AI Technical Summary

Problems solved by technology

However, since the brain cannot control the eye myoelectric signal accurately enough, it is difficult to correctly describe the dynamics of the control system when using traditional control methods, and the control effect is not ideal, so we use the theory of fuzzy control to realize system control

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