Patent ID: 8406924

Claim:
A robot system comprising: a robot body configured to run along a running route; a driving mechanism configured to drive the robot body in a front-rear direction and a turning direction; a driving control device mounted in the robot body and configured to control the driving mechanism; and a camera mounted in the robot body and configured to take an actual image, wherein the driving control device includes: a teaching-image storage unit configured to store teaching images acquired at a plurality of separate teaching points on the running route from a running start position to a goal position under a first environmental lighting condition, and teaching images acquired at the plurality of separate teaching points on the running route under a second environmental lighting condition different from the first environmental lighting condition; a teaching-image selection unit configured to select a present teaching image from the teaching images stored in the teaching-image storage unit, the present teaching image being a target for the robot body in a running direction at present; and a running control unit configured to control the driving mechanism so as to increase a matching degree between the present teaching image selected by the teaching-image selection unit and the actual image taken by the camera.