Robot cleaner and robot system comprising same
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Solution Overview
Problem
Existing robot cleaner technologies struggle to optimally adjust the line gap of a zigzag pattern while traveling, leading to inefficient cleaning due to uncleaned areas and increased cleaning time.
Innovation Solution
A robot cleaner system that includes a control unit capable of periodically sensing deviations from its path and adjusting the zigzag line gap dynamically based on deviation information, ensuring a minimum overlapping region for efficient cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pre-defined amount of overlap is used for zigzag cleaning, then the cleaning level can be selected by the user, but the cleaning effect may not be achieved depending on floor environment or robot performance variations
Solution Approach 1:
The patent implements dynamic adjustment of the zigzag line gap based on real-time deviation detection. The control unit continuously monitors the robot's position and adjusts the line gap dynamically to maintain optimal overlap, transforming the static pre-defined overlap approach into a dynamic adaptive system that responds to actual cleaning conditions and robot performance variations
Solution Approach 2:
The patent employs feedback mechanisms where the control unit detects the robot's current position and deviation from the intended path, then uses this feedback information to adjust the zigzag line gap. This closed-loop control ensures that the cleaning effect remains consistent by continuously adapting to actual robot performance and environmental conditions
2Reliability
If a fairly large amount of overlap is required for zigzag travel to prevent uncleaned areas, then cleaning coverage is improved, but unnecessary travel and cleaning in overlapping regions lengthens the cleaning time
Solution Approach 1:
The system dynamically adjusts the zigzag line gap based on detected deviation amounts rather than using a fixed large overlap. By making the line gap variable and adaptive to actual robot performance, the system achieves reliable cleaning coverage while minimizing unnecessary overlap and reducing overall cleaning time
Solution Approach 2:
The patent changes the parameter of line gap distance based on deviation detection. Instead of maintaining a constant large overlap, the system adjusts this parameter dynamically to optimize the balance between cleaning coverage and cleaning efficiency, reducing time spent on excessive overlapping regions
Data Source
AI summary
A robot cleaner according to one embodiment of the present invention comprises: a main body for forming the exterior thereof; a pair of rotary mops to which cleaning cloths are attached, and which come in contact with the floor and moves, while rotating, the main body in a zigzag pattern including first traveling, in which the main body travels straight in a first direction, and second traveling, in which the main body travels straight in a second direction that is opposite the first direction; and a control unit for setting the zigzag pattern by varying the distance between a travel axis along which the main body travels during the first traveling and a travel axis during the second traveling according to the amount that the current position of the main body deviates from the travel axis. Therefore, while the mop robot cleaner travels in a zigzag, the line gap thereof is changed according to deviation information so that cleaning time satisfying a minimum overlapping region can be minimized.