Mobile robot and control method therefor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing moving robots lack the ability to effectively identify and navigate around liquid and solid contaminants on floors, leading to potential damage or inefficiency in their operations.
Innovation Solution
A moving robot equipped with optical sensors that emit and receive specific wavelength bands of light, along with moisture sensors, to detect and differentiate between contaminants, allowing the robot to adjust its path accordingly to avoid or pass through them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the robot uses optical sensors to detect contaminants, then the robot can identify contaminants, but the robot cannot differentiate between liquid and solid contaminants
Solution Approach 1:
The patent combines optical sensors (for detecting contaminant presence) and moisture sensors (for detecting liquid contaminants) into an integrated detection system. The controller processes signals from both sensor types to differentiate between liquid and solid contaminants, enabling the robot to adapt its navigation based on contaminant type.
Solution Approach 2:
The moisture sensor acts as an intermediary detection device that provides additional information about the contaminant's liquid properties. By introducing this intermediate detection layer, the system can distinguish between liquid and solid contaminants without requiring the optical sensor to perform dual functions.
2Reliability
If the robot avoids all detected positions, then the robot prevents damage from liquid contaminants, but the robot inefficiently avoids solid contaminants that can be traversed
Solution Approach 1:
The robot's navigation behavior dynamically adapts based on contaminant type. When liquid contaminants are detected, the robot avoids those positions to prevent damage. When solid contaminants are detected, the robot traverses through them efficiently. This dynamic response optimizes both reliability and productivity.
Solution Approach 2:
The system changes the navigation parameter (avoidance vs. traversal) based on the detected contaminant type. The controller adjusts the robot's path planning parameters according to whether the contaminant is liquid or solid, enabling optimal behavior for each contaminant type.
3Adaptability or versatility
If the robot uses multiple light receiving elements, then the robot can differentiate contaminant types, but the device complexity increases
Solution Approach 1:
The detection system is segmented into distinct functional components: optical sensors for general contaminant detection and moisture sensors for liquid contaminant detection. This segmentation allows each component to perform its specialized function independently, reducing overall system complexity while maintaining differentiation capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The robot can accurately identify and navigate around contaminants, preventing damage and ensuring efficient operation by using optical and moisture sensors to determine the type and presence of contaminants on the floor.
Implementation Method 1
one or more light emitting elements configured to emit light of a first wavelength band, one or more light receiving elements configured to receive light of a second wavelength band induced by the light of the first wavelength band
Implementation Method 2
one or more optical filter layers arranged on the one or more light receiving elements to pass the light of the second wavelength band
Data Source
AI summary
A robot includes: a main body, one or more optical sensors provided at a lower portion of the main body, memory storing at least one program, and at least one processor, comprising processing circuitry, electrically connected with the optical sensors and the memory and configured to execute at least one instruction of the program. Each optical sensor includes: one or more light emitting elements for emitting light of a first wavelength band, one or more light receiving elements for receiving light of a second wavelength band induced by the light of the first wavelength band, and one or more optical filter layers arranged on the one or more light receiving elements to pass the light of the second wavelength band. The at least on processor is configured to obtain first detection information based on two or more sensing values obtained through the one or more light receiving elements, and, control to avoid a position associated with the first detection information when the first detection information is obtained.