Robotic Mower Docking Path Using Crossing Loop Guidance

The patent combines multiple separate loop wires into a single integrated loop wire structure. The charging station loop wire serves multiple functions: it guides the robotic mower to the charging station, provides docking alignment information, and eliminates the need for separate boundary wires in the charging area. This merging reduces component count and simplifies the system while maintaining docking accuracy through the use of a single, well-designed loop structure.

The charging station loop wire performs multiple functions simultaneously: it acts as a boundary definition, a guidance path for the robotic mower, and a docking alignment reference. By making the loop wire universal and multi-functional, the patent eliminates the need for separate boundary wires and multiple guiding wires, thereby reducing device complexity while maintaining or improving docking accuracy through integrated design.

The patent merges the boundary wire and charging station guidance wire into a single charging station loop wire structure. This simplifies installation as only one loop wire needs to be installed around the charging station instead of multiple separate wires. The simplified structure maintains docking reliability by providing clear, unambiguous guidance signals to the robotic mower throughout the docking process.

The patent extracts and eliminates the separate boundary wire from the charging station area, keeping the boundary wire only where needed for lawn boundary definition. By removing the redundant boundary wire segment in the charging area and integrating its function into the charging station loop wire, the system becomes easier to install and operate while maintaining docking reliability through the loop wire's continued presence and function.

The robotic mower uses sensors to detect the charging station loop wire and receives feedback about its position relative to the loop. Based on this feedback, the mower adjusts its path and orientation to achieve precise alignment with the charging contacts. This feedback mechanism allows the system to maintain high alignment accuracy while using a relatively simple single-loop-wire docking method, avoiding the need for complex mechanical alignment systems.

The patent replaces complex mechanical alignment systems with sensor-based detection and control. Instead of relying on precise mechanical positioning of multiple wires and physical guides, the system uses sensors to detect the loop wire position and electronically controls the mower's movement and orientation. This substitution maintains high alignment precision while simplifying the overall docking method and reducing mechanical complexity.