HUMAN - COMPUTER MOUSE INTERFACE FOR PEOPLE WITH DISABILITIES

摘要

Abstract: The present invention is human computer interface for disabled persons. A head-operated computer mouse that employs tilt sensors placed in the headset to determine head position and to function as simple head operated computer mouse. One tilt sensor detects the lateral head motion to drive the left or right displacement of the mouse. The system uses accelerometers to detect the users head tilt in order to direct mouse movement on the monitor. The clicking of the mouse is activated by the users eye blinking through a sensor. The keyboard function is implemented by allowing the user to scroll through letters with head tilt and with eye blinking as the selection mechanism. An interface system that would allow a similarly paralyzed user to interact with a computer with almost full functional capability. The system operates as a mouse initially, but the user has the ability to toggle in and out of a keyboard mode allowing the entry of text. This is achieved by using the control from a single eye, tracking the position of the pupil for direction, and using blinking as an input. As detection of eye motion proved too challenging, an accelerometer based tilt detector to determine head motion as referred in the figure 2.