Pallet Movement Control Using First-Position Route Referencing
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Solution Overview
Problem
Existing systems for transporting loads, such as forklifts, face inefficiencies and inaccuracies when objects are deviated from presumed positions, particularly when loading or unloading pallets from trucks, as they require repeated marker detection processes, limiting work efficiency and accuracy.
Innovation Solution
A movement control system that includes a movable body, a management system, and a computation device, which uses sensors to detect the position of pallets and calculates optimized routes for accurate and efficient transportation, reducing the need for continuous marker detection by determining the initial pallet position with worker assistance and automatically transporting subsequent pallets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If marker detection processing is executed every time to detect the correct position of objects, then position detection accuracy is improved, but work efficiency deteriorates due to repeated processing
Solution Approach 1:
The system performs marker detection only once during the initial position identification phase, before automated transport begins. The detected position information is stored and reused for calculating access routes to subsequent objects, eliminating the need for repeated marker detection processing while maintaining accurate position detection.
Solution Approach 2:
The system creates a digital copy of the detected object position information and uses this copied data for route calculation to subsequent objects. Instead of repeatedly detecting markers, the system references the stored position data, significantly reducing processing time while maintaining accuracy.
2Extent of automation
If automated transport is implemented without worker assistance for position identification, then automation level is improved, but adaptability to positional deviations deteriorates
Solution Approach 1:
A worker performs preliminary position identification by detecting markers on the first object and inputting position information before automated transport begins. This preliminary human action establishes accurate baseline data that enables the automated system to adapt to actual positional deviations while maintaining high automation levels for subsequent operations.
Solution Approach 2:
The system uses an intermediary approach where a worker assists with initial position identification for the first object, and this information serves as a reference for automated calculation of positions for subsequent objects. This intermediary human input enables the system to handle positional deviations effectively.
3Manufacturing precision
If the system calculates access routes for all objects including the first one, then routing accuracy is improved, but processing time increases
Solution Approach 1:
The worker performs preliminary position identification for the first object before automated transport starts. This preliminary action eliminates the need for the system to calculate access routes for the first object, reducing processing time while maintaining routing accuracy for subsequent objects through automated route calculation based on stored position information.
Solution Approach 2:
The transport process is segmented into two phases: initial manual position identification for the first object, followed by automated route calculation and transport for subsequent objects. This segmentation optimizes processing time by avoiding redundant marker detection while maintaining routing accuracy through the use of stored position data.
Data Source
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AI summary
Problem Objects can be transported efficiently with high accuracy. Solving Means A control device includes a route acquisition unit configured to acquire a route of a movable body for moving a plurality of aligned target objects to or from a target position at which the target objects are to be picked up or dropped, a reference position/posture acquisition unit configured to acquire information on a route at which the movable body picks up or drops a first target object at the target position, and an information output unit configured to output the information acquired by the route acquisition unit to the movable body, in which the route acquisition unit acquires routes of the movable body for moving second and subsequent target objects, based on the information acquired by the reference position/posture acquisition unit.