Coverage Robot Beacon Navigation for Room Boundary Transitions

The patent replaces mechanical navigation methods with optical/infrared signal-based navigation. The directional receiver uses infrared sensors to detect emissions from navigation beacons, eliminating the need for complex mechanical mapping and obstacle detection systems. This substitution of mechanical systems with optical fields resolves the contradiction by achieving autonomous navigation through simpler sensor-based detection.

The patent introduces navigation beacons as intermediary elements that emit infrared signals to guide the robot. These beacons act as mediators between the robot's navigation system and the environment, providing clear directional cues through optical signals. This intermediary approach simplifies the robot's navigation task while maintaining high automation, resolving the contradiction between automation extent and device complexity.

The directional receiver is segmented into multiple component receivers (first and second component receivers) positioned at different orientations. Each component receiver detects infrared emissions from a specific angular range. By segmenting the detection function across multiple simpler sensors rather than using one complex sensor, the system achieves high measurement precision while keeping individual components relatively simple.

Each component receiver is optimized for detecting emissions from specific local directions (different angular ranges). The first component receiver handles emissions from one angular sector while the second handles another sector. This local optimization allows each receiver to be simpler in design while collectively providing comprehensive directional detection precision across all angles.

The patent merges two different receiver types (omni-directional receiver and directional receiver) into a unified navigation system. The omni-directional receiver provides 360-degree emission detection for general orientation, while the directional receiver provides precise angular measurement for accurate positioning. This combination of complementary systems enhances overall navigation reliability by providing multiple independent detection capabilities that work together.

Both receiver types are integrated into a single navigation system that performs multiple functions: the omni-directional receiver handles general area detection and initial orientation, while the directional receiver handles precise positioning and alignment. This multi-functional integration allows the system to maintain high reliability across different navigation scenarios without requiring separate dedicated systems for each function.