Robot cleaner and controlling method thereof
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Solution Overview
Problem
Existing robot cleaners face challenges in effectively cleaning liquid spills due to the configuration of wet brushes, which can contaminate dry brushes, suction ports, and wheels when disposed opposite to the direction of movement, leading to potential failure.
Innovation Solution
A robot cleaner equipped with sensors and processors that determine a driving path to clean liquid by reversing direction, allowing the wet brush to face the direction of movement, thereby minimizing contamination and ensuring efficient cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wet brush is disposed at the rear of the robot cleaner, then the moisture in the wet brush does not interfere with the operation of the dry brush, suction port, and wheels, but the dry brush, suction port, and wheels may be contaminated by liquid when cleaning liquid
Solution Approach 1:
The robot cleaner inverts its driving direction to move backward when liquid is detected on the floor. This allows the wet brush, positioned at the rear, to face the direction of movement and effectively clean liquid spills without causing contamination to the dry brush, suction port, and wheels that would occur during forward movement.
Solution Approach 2:
The robot cleaner dynamically changes its driving direction based on the type of contaminant detected. It switches between forward drive for dry cleaning and backward drive for wet cleaning, optimizing the cleaning effectiveness while preventing contamination of sensitive components.
2Productivity
If the wet brush is disposed in the front of the robot cleaner, then the wet brush faces the direction of movement for effective wet cleaning, but the moisture in the wet brush interferes with the operation of the dry brush, suction port, and wheels
Solution Approach 1:
Instead of positioning the wet brush in the front, the invention positions it at the rear and inverts the driving direction for wet cleaning tasks. This maintains the wet brush's effectiveness while preventing moisture interference with other components.
Solution Approach 2:
The robot cleaner performs preliminary detection of liquid contaminants using sensors before initiating the backward driving mode. This allows the system to prepare for wet cleaning by switching to the appropriate driving direction, ensuring the wet brush is properly positioned before contact with the liquid spill.
3Ease of operation
If the robot cleaner performs forward drive to clean liquid, then the cleaning path is straightforward, but the dry brush, suction port, and wheels are contaminated by liquid before cleaning
Solution Approach 1:
The robot cleaner inverts its driving direction to move backward when liquid is detected, allowing the wet brush at the rear to face the direction of movement and clean liquid effectively without contaminating the dry brush, suction port, and wheels.
Solution Approach 2:
The wet brush, positioned at the rear, serves a dual function: it protects the front components (dry brush, suction port, wheels) from liquid contamination while simultaneously performing the cleaning task during backward movement.
Data Source
AI summary
A robot cleaner includes: at least one sensor; a wet brush; a driver; at least one memory storing at least one instruction; and at least one processor configured to execute the at least one instruction, where, by executing the at least one instruction, the at least one processor is configured to: obtain information about liquid on a floor through the at least one sensor in a state in which the robot cleaner performs a forward drive; determine a driving path for cleaning the liquid based on the information about the liquid; and control the driver to cause the robot cleaner to perform a backward drive along the driving path, and where the wet brush faces a direction opposite to a direction in which the robot cleaner proceeds in the state in which the forward drive is performed.