Smart wheelchair based on eyeball control screen

Abstract

The invention provides a smart wheelchair based on an eyeball control screen, which aims to widen the eye control scope. The smart wheel chair comprises an electrically propelled wheelchair, an information acquisition device fixed on the electrically propelled wheelchair, an information processing device, an information display device and a first bracket and a second bracket for fixing the three devices. The information acquisition device is used for shooting a user's face image; the information processing device is used for extracting the information of the eyes and judging the eyes' open orclose and pupil movement state. The judged eye movement state is converted into a command for controlling the cursor to move and clicking the displayed content of the electronic display screen while being converted into a command for controlling the movement of the electrically propelled wheelchair, and the user controls the starting, braking and left-right rotation of the electrically propelled wheelchair through effective blinking and pupil rotation, when the electrically propelled wheelchair is stationary, the user controls the mouse to click and move on the electronic display screen through the effective blinking and pupil rotation, so that the user can communicate with the outside through the eyes.

Description

technical field [0001] The invention belongs to the field of computer technology, and relates to an intelligent wheelchair, in particular to an intelligent wheelchair based on an eyeball-controlled screen, which can be used by disabled persons such as patients with "progressive anthropomorphism" who can only communicate with the outside world through their eyes. While the movement is realized by the rotation of the pupil of the eye and the change of the opening and closing of the eye, the movement of the cursor and the click on the content displayed on the electronic display screen can be controlled through the eyes, so that the user can communicate with the outside world through the eyes. technical background [0002] At present, wheelchairs have become the means of transportation for the elderly and the disabled with limited mobility. Especially for the patients with ALS in the late stage of the disease, only their eyes can move freely in their whole body, and they can use...

AI Technical Summary

Problems solved by technology

This invention realizes using the eyes to control the movement of the wheelchair. The shortcoming is that when the sensor collects the electromechanical signals of the user's eyes when the user blinks, the left and right eyes blink in different order and times to represent different commands. This operation method lacks Versatility, and the action of blinking controls different commands, one-to-many commands are prone to mistakes

This invention realizes the use of eyes to control the movement of electric wheelchairs, and at the same time solves the lack of versatility and one-to-many commands in the operation method when the eyes control the movement of wheelchairs in the published patent "Intelligent Wheelchair Human-Computer Interaction Control System and Method Based on Eye Movement Recognition" The problem that is easy to cause mistakes. The shortcoming of this invention is that it only realizes the control of the wheelchair through the eye information, and does not further explore the processing ability of the information processing device for the eye information. Wider range of eye control for people with disabilities who can only move their eyes

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