Students of National Taiwan University developed a wheeled guide robot called Hsiao Mei. It has GPS and laser mapping systems, using which it constructs 2D and 3D maps for navigation.
Octavia is a wheeled firefighting robot developed by MIT's Personal Robotics Group. The US Navy wanted a robot on board ship in order to help humans deal with fires and other emergencies. Octavia's operating system allows it to track complex objects and…