Transport Robot Wheel-Speed Control for Flexible Path Navigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional navigation methods for transport robots in warehouses, such as magnetic strips, are inflexible and require significant reconfiguration when the warehouse layout changes, making them inefficient for dynamic path adjustments.
Innovation Solution
A control method and system that determines the center position of a movable device, calculates its traveling path, and adjusts the speeds of its wheels based on geometric data and path information, allowing for precise navigation without the need for re-laying navigation hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic strips are used for navigation control of the transport robot, then the robot can be kept from deviating from the established orbit, but when the warehouse layout changes and the path is expected to be changed, the workload will be very large
Solution Approach 1:
The patent replaces the mechanical magnetic strip navigation system with a vision-based navigation system using cameras and image processing. The transport robot uses visual markers (such as AR tags or coded patterns) on the ground instead of magnetic fields, allowing path information to be captured optically and processed computationally, thereby enabling flexible path changes without physical reconfiguration.
Solution Approach 2:
The patent uses visual markers that contain encoded path information as a form of information copying. Instead of relying on physical magnetic field configurations, the navigation path is represented as visual data that can be easily replicated and modified through image printing or display, allowing rapid path updates without physical intervention.
2Ease of operation
If magnetic strips are laid to define the path of the transport robot, then continuous navigation is achieved, but the application is very limited when frequent path changes are needed
Solution Approach 1:
The patent substitutes the mechanical process of laying and removing magnetic strips with a digital image-based system. Path information is encoded in visual markers that can be quickly updated by changing images or displays, eliminating the time-consuming physical reconfiguration process while maintaining ease of implementation through standard imaging equipment.
Solution Approach 2:
The patent introduces dynamic adaptability to the navigation system by using real-time image processing and computational algorithms. The system can dynamically adjust and recalculate paths based on current visual information, allowing rapid response to layout changes without the inertia associated with physical magnetic strip reconfiguration.
Data Source
AI summary
The present disclosure disclosed a control method of a movable device for controlling movement of the movable device between a first position and a second position, including: determining a position of a center of the movable device, a distance from the center to a left wheel of the movable device being equal to a distance from the center to a right wheel of the movable device; determining a traveling path of the movable device according to the position of the center of the movable device, the first position, and the second position; determining a difference between speeds of the left and right wheels and a center speed of the movable device according to the traveling path, the center speed, and geometric data of the movable device, the center speed being a speed of movement of the center of the movable device; determining the speeds of the left and right wheels of the movable device according to the difference; and controlling the movement of the movable device according to the speeds of the left and right wheels.