Autonomous Mobile Robot Sensor Control for Level Detection
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Solution Overview
Problem
Autonomous mobile robots often get stuck or fall off due to undetected level differences or high positions, leading to damage and inability to function effectively.
Innovation Solution
Equipping the autonomous mobile robot with first and second distance sensors and a control unit that adjust movement speed and stop the robot when specific detecting distances are reached, ensuring the robot moves on a defined datum plane and avoids hazards by controlling speed and stopping when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the autonomous mobile robot moves at normal speed without detection, then productivity is improved, but reliability deteriorates due to undetected level differences causing damage
Solution Approach 1:
The distance sensors detect level differences and obstacles before the robot reaches them, allowing the control unit to prepare speed reduction or stopping actions in advance. This preliminary detection prevents damage while maintaining efficient movement during normal operation.
Solution Approach 2:
The system continuously receives feedback from distance sensors about the environment ahead, and the control unit adjusts the motor speed accordingly. When the sensor detects a level difference or obstacle within a certain distance, the feedback loop triggers speed reduction or stopping to prevent damage.
2Reliability
If the robot stops frequently to detect obstacles, then reliability is improved, but productivity deteriorates due to reduced movement efficiency
Solution Approach 1:
The distance sensors perform preliminary detection of obstacles at a distance, allowing the robot to adjust speed gradually rather than stopping abruptly. This maintains continuous movement and productivity while ensuring safe navigation.
Solution Approach 2:
The control unit dynamically adjusts the motor speed based on real-time sensor data. The robot transitions smoothly between normal speed and reduced speed or stopping, optimizing both reliability and productivity according to the detected environment.
3Productivity
If the robot moves quickly across high positions, then productivity is improved, but reliability deteriorates due to undetected drop-offs causing falls
Solution Approach 1:
The distance sensors detect drop-offs and level changes before the robot reaches high positions, allowing the control unit to reduce speed or stop in advance. This preliminary action prevents falls while maintaining efficient movement on safe surfaces.
Solution Approach 2:
Continuous feedback from distance sensors monitors the terrain ahead, and the control unit adjusts speed in real-time. When a potential drop-off is detected, the feedback loop triggers immediate speed reduction or stopping to prevent falls.
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
Enhances the robot's mobility and prevents damage by allowing it to navigate safely and avoid level differences, reducing the risk of getting stuck or falling off.
Implementation Method 1
a first distance sensor configured to detect a first detecting distance between the first distance sensor and the surface along a first axial direction
Implementation Method 2
a second distance sensor configured to detect a second detecting distance between the second distance sensor to the surface along a second axial direction
Data Source
AI summary
An autonomous mobile robot, adapted to move on a surface according to a moving datum plane, is provided. The autonomous mobile robot comprising: a first distance sensor configured to detect a first detecting distance between the first distance sensor and the surface along a first axial direction; a second distance sensor configured to detect a second detecting distance between the second distance sensor to the surface along a second axial direction; and a control unit configured to control the autonomous mobile robot to move in a speed limited mode when the first detecting distance is within a first distance range, and configured to control the autonomous mobile robot to stop moving when the second detecting distance is larger than a second pre-determined distance. A mobile control method is also provided.