Robot cleaner and control method thereof
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Solution Overview
Problem
Conventional robot cleaners face difficulties in effectively removing foreign substances from corners during cleaning due to their standard travel patterns and obstacle detection capabilities.
Innovation Solution
A robot cleaner equipped with a sensor unit and a controller that senses areas where multiple obstacles intersect, reduces travel velocity, and adjusts its path to approach such areas, increasing the cleaning time and efficiency by rotating the main body by a predetermined angle to enhance brush interaction with corners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the robot cleaner travels at normal velocity following a standard cleaning pattern, then cleaning productivity is maintained, but foreign substance removal ability at corners deteriorates
Solution Approach 1:
The robot cleaner dynamically adjusts its traveling velocity based on the detected cleaning area. When a corner area is detected through sensor input, the controller automatically reduces velocity to enable effective corner cleaning. This dynamic velocity adjustment resolves the contradiction by allowing the system to maintain high productivity during normal cleaning while ensuring reliable foreign substance removal at corners when needed.
2Reliability
If the robot cleaner reduces traveling velocity to approach corner areas, then foreign substance removal ability at corners is improved, but cleaning productivity decreases
Solution Approach 1:
The robot cleaner applies local quality by implementing velocity reduction only in specific corner areas detected by sensors, while maintaining normal velocity in other cleaning areas. This localized approach ensures reliable foreign substance removal at corners without compromising overall cleaning productivity, as the velocity adjustment is applied selectively rather than globally throughout the entire cleaning process.
3Productivity
If the robot cleaner follows a standard cleaning travel pattern, then cleaning efficiency is maintained, but corner cleaning effectiveness deteriorates
Solution Approach 1:
The robot cleaner incorporates feedback mechanisms through sensor units that continuously detect obstacles and identify corner areas. When a corner is detected, the controller receives feedback and automatically adjusts the cleaning pattern by reducing velocity and modifying the travel route to approach the corner area. This feedback-driven adaptation resolves the contradiction by maintaining overall cleaning efficiency while ensuring effective corner cleaning through real-time pattern adjustment.
Data Source
AI summary
A robot cleaner includes a main body traveling along a floor surface and removing foreign substances in a cleaning travel mode, a sensor unit sensing obstacles around the main body, brush units sweeping foreign substances on a floor surface through rotation, and a controller reducing the traveling velocity of the main body and causing the main body to approach a front obstacle, if an area where a plurality of obstacles contacts each other is sensed by the sensor unit.