Abstract: A robot includes: a base having a plurality of wheels; a body having a bottom portion coupled above the base, and a top portion above the bottom portion, the top portion configured to support food and/or drink; a first camera at the bottom portion, wherein the first camera is oriented to view upward; and a second camera at the top portion, wherein the second camera is configured to view upward.

Abstract: A robot includes: a base having a plurality of wheels; a motor system mechanically coupled to one or more of the wheels; a body having a bottom portion coupled above the base, and a top portion above the bottom portion; a support at the top portion, wherein the support is configured to withstand a temperature that is above 135° F.; and a processing unit configured to operate the robot.

Abstract: According to one aspect of the invention, there is provided a method for determining a travel route of a robot, comprising the steps of: identifying at least one obstacle with respect to a position of a robot; calculating an obstacle radius in which the at least one obstacle has influence, with reference to at least one of information on motion properties of the at least one obstacle and information on a relationship with at least one other obstacle associated with the at least one obstacle; and determining an optimum travel route of the robot with reference to the calculated obstacle radius and a task assigned to the robot.