Mobile Robot Wheel Wear Balancing for Smarter Maintenance
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Solution Overview
Problem
Existing robot control systems face inefficiencies in maintaining mobile robots with right and left wheels, as they often require separate replacements based on differing abrasion levels, leading to increased maintenance and unnecessary discarding of wheels with lower attrition.
Innovation Solution
A robot control system that calculates and manages the abrasion degrees of right and left wheels using sensors, allowing for the elimination of right-left differences in abrasion, thereby optimizing wheel maintenance and reducing unnecessary replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wheels are replaced based on individual abrasion levels, then maintenance timing can be optimized for each wheel, but the number of maintenance operations increases and wheels with small attrition are needlessly discarded
Solution Approach 1:
The patent combines the replacement decision for right and left wheels into a unified management approach. By calculating and comparing abrasion degrees of both wheels, the system determines replacement timing collectively rather than independently, allowing wheels to be replaced together when appropriate and reducing unnecessary maintenance operations.
Solution Approach 2:
The patent introduces abrasion degree as a quantitative parameter to determine replacement timing. By calculating specific abrasion values for each wheel and comparing them, the system transforms the replacement decision from a qualitative judgment to a parameter-based objective criterion, enabling optimized maintenance scheduling.
2Ease of operation
If wheels are replaced concurrently to simplify maintenance, then maintenance operations are simplified, but wheels with small attrition are needlessly discarded
Solution Approach 1:
The patent uses abrasion degree calculation to establish objective replacement criteria. By comparing the abrasion values of right and left wheels, the system determines whether concurrent replacement is truly necessary or if individual replacement timing can be optimized, thus avoiding unnecessary discarding of wheels with minimal wear.
Solution Approach 2:
The patent performs preliminary abrasion degree calculation and comparison before making replacement decisions. This advance assessment allows the system to plan replacement timing optimally, determining whether wheels should be replaced together or at different times based on their actual wear conditions rather than following a fixed schedule.
3Device complexity
If maintenance is performed based on operating time, then maintenance scheduling is simplified, but wheels are replaced at non-optimal times leading to increased maintenance frequency
Solution Approach 1:
The patent replaces time-based maintenance scheduling with abrasion-degree-based scheduling. By calculating actual wheel wear and using this parameter to determine replacement timing, the system achieves more precise maintenance scheduling that reflects actual wheel conditions rather than arbitrary time intervals, thereby reducing unnecessary maintenance operations.
Data Source
AI summary
A robot control system is a robot control system that controls a plurality of mobile robots, in which: each of the mobile robots includes right and left wheels, and a sensor that detects actions of the right and left wheels; and the control system calculates abrasion degrees of right and left components for the right and left wheels, depending on a detection result of the sensor, and manages traveling of the plurality of mobile robots, depending on the abrasion degrees.