CLEANING ROBOT NAVIGATIONG METHOD USING THE REPEATING IMAGE PATTERNS OF WORKING ENVIRONMENT

摘要

PURPOSE: A self-control movement method of a cleaning robot using repetitive image patterns around a workplace is provided to predict location information using a sum vector in which an optical flow is accumulated in a video frame. CONSTITUTION: A self-control movement method of a cleaning robot using repetitive image patterns around a workplace comprises; a step of receiving repetitive image patterns by installing a camera to the direction of the repetitive image around a workplace at the center of the cleaning robot and a step of calculating the angle with respect to a Y axis from a standard starting point of the cleaning robot at the workplace and set of angles. [Reference numerals] (AA) Initializing a robot imaging device; (BB) Processing a ceiling image with repetitive patterns; (CC) Straight lines are extracted?; (DD) Calculating the direction of a robot; (EE) Calculating the direction using an optical flow; (FF) Crossing point of the straight lines is extracted?; (GG) Calculating the position of the robot; (HH) Calculating the position using an optical flow; (II) Using the position/direction