Self-Localization of Mobile Robot Based on Beacon Beam of TOF Laser Sensor Mounted on Pan-Tilt Actuator: Estimation Method that Combines Spot Coordinates on Laser Receiver and Odometry

Abstract

We propose a method for estimating the position and attitude of a mobile robot using a laser beam. To this end, we employ the real-world clicker, which was developed by the authors and consisted of a system that uses a TOF (time of flight) laser sensor mounted on a pan-tilt actuator to measure the three-dimensional position of the laser spot. A laser receiver was mounted on top of the mobile robot, and the position of the laser spot was measured by both the camera installed below the receiver and real-world clicker. We propose an algorithm that allows the estimation of the robot’s self-position and attitude while the robot is in motion by combining the use of odometry, and validate it through simulations and experiments.