Autonomous Floor Marking with Optical Guidance for AGV Paths
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Solution Overview
Problem
Existing methods for applying floor markings in warehouses are not precise enough to be followed by automated guided vehicles (AGVs), especially in complex environments with storage racks and obstacles, leading to inaccurate navigation.
Innovation Solution
A device that applies adhesive strips using an applicator roller and tensioning mechanism, combined with a directional train and optical sensors, to ensure precise marking along a desired path, allowing AGVs to navigate accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual floor marking is done by an operator using adhesive tape or paint, then the marking can be applied without specialized equipment, but the precision and accuracy of the marking is insufficient for automated guided vehicle navigation
Solution Approach 1:
The patent replaces manual mechanical marking operations with an automated marking device that uses an applicator roller to apply adhesive tape. The device incorporates optical sensors and control systems to automatically guide the marking process, eliminating the need for manual operator intervention while achieving millimeter-level precision over distances of several tens of meters.
Solution Approach 2:
The marking device is designed to operate autonomously without operator intervention. The applicator roller automatically applies the adhesive tape along the desired path, and the device includes self-contained propulsion and guidance systems that enable it to navigate and mark floors independently, providing self-service marking capability.
2Ease of operation
If manual marking is performed in complex warehouse environments with storage racks and obstacles, then the operator must navigate narrow passages and low obstacles, but the resulting marking accuracy is compromised
Solution Approach 1:
The patent replaces manual navigation and marking operations with an automated device equipped with propulsion means and guidance systems. The device can autonomously navigate complex warehouse environments with storage racks and obstacles, maintaining marking precision through automated control rather than manual operation.
Solution Approach 2:
The marking device incorporates optical sensors that detect the desired direction and provide feedback to the control system. This feedback mechanism enables the device to automatically adjust its position and orientation to maintain accurate marking along the desired path, even when navigating complex environments with obstacles and narrow passages.
3Device complexity
If adhesive tape is applied without tensioning, then the application process is simpler, but the adhesive strip may deviate from the desired direction and create creases or bubbles
Solution Approach 1:
The patent introduces a tensioning drum as an intermediary component between the adhesive tape supply and the applicator roller. The tensioning drum applies controlled tension to the adhesive strip as it is being applied, preventing deviation, creases, and bubbles. This intermediary mechanism ensures smooth, precise marking while maintaining relatively simple device architecture.
Data Source
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AI summary
The invention relates to a device (24) for applying a marking to a surface (14), which device comprises: a frame (30); a marking means (32) mounted on the frame (30), the marking means (32) being configured to apply a marking to the surface (14); a steering train (34) mounted in particular on a first end of the frame (30), the steering train (34) being designed to control the direction of the device (24) so as to move in a desired direction; a motor-driven forward-movement means (36) mounted in particular on a second end of the frame (30), opposite to the first end, the forward-movement means (36) being configured to ensure that the device (24) moves in the desired direction. The invention also relates to a method for applying a marking to a surface (14) and to a device for applying a marking to a surface (14).