Automated Warehouse Article Repositioning After Vibration Misalignment
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Solution Overview
Problem
In automated warehouse systems, articles are prone to misalignment due to vibrations from transport devices and travel carriers, leading to operational issues when articles cannot be unloaded from storage racks.
Innovation Solution
An automated warehouse system with a control unit that includes a misalignment determination unit and a misalignment correction instruction unit. The system estimates vibration exposure by counting transfer events and travel carrier movements, and performs misalignment correction operations via control signals to the transport device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a restricting member is provided at each article placement position to prevent misalignment, then article placement stability is improved, but production cost and manufacturing complexity increase significantly
Solution Approach 1:
The patent replaces the mechanical restricting member system with a control-based system. The control unit monitors vibration levels and triggers misalignment correction operations automatically, eliminating the need for physical restricting members on shelves while maintaining article placement stability.
Solution Approach 2:
The system performs self-correction of misalignment by automatically detecting vibration-induced misalignment and executing correction operations through the transport device, without requiring additional mechanical constraint structures.
2Stability of the object's composition
If a dual-component shelf structure is used to reduce vibration transmission, then article placement stability is improved, but production cost and manufacturing time increase
Solution Approach 1:
The patent replaces the dual-component mechanical vibration isolation structure with a control-based vibration monitoring and correction system. The control unit detects vibration levels and triggers correction operations, eliminating the need for complex shelf structures while maintaining stability.
Solution Approach 2:
The system changes the approach from modifying structural parameters (dual-component shelves) to controlling operational parameters (vibration monitoring and correction timing), thereby maintaining stability without increasing manufacturing complexity.
3Reliability
If restricting members are provided for all articles in large-scale storage, then misalignment prevention is improved, but production cost increases significantly
Solution Approach 1:
The control unit serves multiple functions: it monitors vibration levels, determines misalignment risk, and triggers correction operations. This universal control approach replaces the need for individual restricting members at each position, maintaining reliability while reducing structural complexity.
Solution Approach 2:
The patent replaces the mechanical restricting member system with a control-based monitoring and correction system that can serve all articles in the storage rack without requiring additional mechanical structures at each position.
4Device complexity
If the storage rack structure is simplified without restricting members, then production cost decreases, but article placement stability deteriorates due to vibration
Solution Approach 1:
The patent replaces mechanical restricting members with a control-based system that monitors vibration and triggers correction operations, maintaining article stability without requiring complex rack structures.
Solution Approach 2:
The control unit performs preliminary detection of vibration levels and proactively triggers misalignment correction before articles become significantly misaligned, maintaining stability without requiring mechanical constraint structures.
Data Source
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AI summary
A control unit 5 provided in an automated warehouse system A includes a misalignment determination unit 5C that, after storage of an article P in a storage rack 1, determines whether or not an article P is estimated to have been subjected to vibration exceeding a predetermined threshold value, and a misalignment correction instruction unit 5D that, if the misalignment determination unit 5C determined that the article P is estimated to have been subjected to vibration exceeding the predetermined threshold value, outputs a control signal to a transport device 4, 4S to drive the transport device 4, 4S to execute a misalignment correction operation with respect to the placement position of the article P.