Robotic Cleaning Device Path Marking for Collision-Free Navigation
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Solution Overview
Problem
Existing robotic cleaning devices face inefficiencies in navigation and cleaning patterns, particularly in complex environments, as they often rely on random motion or incomplete sensor data, leading to potential collisions, incomplete cleaning, and reduced performance.
Innovation Solution
A method for operating robotic cleaning devices that involves following the boundary of objects while registering path markers, switching to follow object edges, and simplifying cleaning patterns to ensure neat and efficient cleaning, using a combination of dead reckoning sensors and obstacle detection for autonomous navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If robotic cleaning devices use random motion or sensor data navigation, then they can autonomously move around obstacles, but they risk collisions, get stuck or lost, and reduce cleaning efficiency
Solution Approach 1:
The robotic cleaning device performs preliminary actions by registering path markers at intervals along the boundary of objects before actual cleaning. This pre-planned path marking system allows the device to follow predetermined safe paths, eliminating the need for real-time sensor data interpretation and reducing the risk of collisions or getting stuck during cleaning operations.
2Adaptability or versatility
If robotic cleaning devices use stroke method with sensor data navigation, then they can move between rooms, but they risk collisions with obstacles and slow down cleaning speed
Solution Approach 1:
The device performs preliminary path marking along object boundaries before cleaning, creating a pre-planned navigation path. This allows the robotic cleaner to move between rooms and around obstacles at higher speeds without real-time sensor processing delays, as the safe path has already been predetermined by the registered path markers.
3Manufacturing precision
If robotic cleaning devices use single side brush with adapted cleaning pattern, then they can remove debris near edges, but the cleaning pattern becomes complex and less efficient
Solution Approach 1:
The device performs preliminary path marking along object boundaries, which naturally guides the cleaning pattern along edges where debris accumulation is most likely. This pre-planned boundary-following approach ensures thorough cleaning near edges and obstacles without requiring complex real-time pattern adjustments, maintaining both precision and productivity.
Data Source
AI summary
A method of operating a robotic cleaning device over a surface to be cleaned, the method being performed by the robotic cleaning device. The method includes: following a boundary of a first object while registering path markers including positional information at intervals on the surface; tracing previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and switching from tracing the previously registered path markers to following an edge of a second object upon detection of the second object.