Localizsation and Control for Trajectory Tracking for Autonomous Lawn Mowers

Abstract

The present bachelor thesis presents the necessary methods for an exact selflocalization by using an Inertial Mesurment Unit (IMU) and the odometry of an autonomous lawn mower. This self-localization shall be used in later work together with a localization of a particle filter. The required standard models [12] for the individual sensor systems were examined and the required parameters determined. Measurements were taken with the autonomous lawn mower to develop a Kalman filter [15] based on the data obtained. With the help of the Kalman filter and a controller which was designed in this thesis, such a self-localization could be realized. The results show that the autonomous lawnmower can locate itself under simulated conditions with a higher accuracy than with a pure localization via odometry. However, final measurements show that disturbances of the IMU occur within the autonomous lawn mower, so that a final overall behaviour cannot be implemented with the current architecture of the autonomous lawn mower.

Related