Ball-and-Ring Mobile Robot Structure for Narrow-Space Navigation

The robot body is divided into multiple independently controllable modules: a ball structure for base movement, an outer ring structure for upper body rotation, and an inner ring structure for camera positioning. This segmentation allows each module to perform specialized functions - the ball structure provides aesthetic rolling movement while the ring structures handle navigation and imaging, resolving the contradiction between appearance and functionality.

The patent implements dynamic movement by enabling the ball structure to roll in various directions and the outer ring structure to rotate independently. This creates emotionally appealing dynamic movements while maintaining navigation capability through coordinated control of these dynamic elements, allowing the robot to both look aesthetically pleasing and operate effectively in narrow spaces.

The patent employs a nested structure where the inner ring structure is positioned within the ball structure, and the outer ring structure surrounds the ball structure. This nesting arrangement allows multiple functional elements to be integrated in a compact configuration, reducing overall device complexity while maintaining the ability to perform independent dynamic movements of each nested component.

The ball structure serves multiple functions: it acts as the base for movement, provides structural support for the ring structures, and enables aesthetic rolling motion. The outer ring structure similarly serves both navigation rotation and structural framing functions. This multi-functionality reduces the need for separate dedicated components, thereby reducing overall device complexity while maintaining adaptability.

The patent replaces traditional mechanical friction-based drive systems with magnetic levitation technology. Instead of using mechanical contacts between wheels and surfaces, magnetic fields are used to levitate and propel the ball structure, providing stable and rapid operations without mechanical wear. This substitution improves reliability while the modular design helps manage manufacturing complexity.

The patent utilizes magnetic field parameters (strength, direction, polarity) to control the levitation and movement of the ball structure. By changing magnetic field parameters dynamically, the system achieves stable and rapid operations. This parameter-based control approach allows for precise manipulation of physical states without requiring complex mechanical mechanisms, thereby improving reliability while keeping manufacturing feasible through electronic control systems.