US Patent 8738226 Holonomic motion vehicle for travel on non-level surfaces

Holonomic-motion ground vehicles (i.e., mobile platforms) that are capable of controlled movement across non-level surfaces, while carrying one or more non-destructive inspection sensors or other tools. The mobile platform comprises a frame having four (or a multiple of four) Mecanum wheels, each wheel driven by a respective independently controlled motor, and further having a plurality (e.g., two) of independently controlled suction devices. The Mecanum wheels enable holonomic motion, while the suction devices facilitate sufficiently precise control of motion on non-level surfaces.