Article Storage Facility Unloading Priority Mode
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Solution Overview
Problem
Existing article storage facilities face inefficiencies when unloading an article stored behind another article, as the process involves returning the front article to the rack before unloading the rear article, increasing the time required for unloading.
Innovation Solution
Implementing a control mode for the transport device that prioritizes unloading by first transferring the rear article to the transport device, then traveling to the relay section with both articles, followed by transferring the rear article back to the storage section, thereby reducing the time taken to unload the rear article.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the front article is returned to the storage rack before unloading the rear article, then the storage rack structure is maintained, but the unloading time increases
Solution Approach 1:
The transport device performs preliminary actions by transferring both the front article and rear article to itself in sequence before traveling to the relay section. This preliminary transfer operation allows the articles to be moved together, eliminating the need to return the front article to the storage rack and significantly reducing the total unloading time while maintaining system reliability
Solution Approach 2:
The transport device dynamically adjusts its operation mode based on the unloading requirements. It can switch between normal operation (transferring articles individually) and unloading priority mode (transferring multiple articles together to the relay section), allowing flexible optimization of unloading time while maintaining storage rack structure integrity
2Loss of time
If the transport device transfers the rear article directly to the relay section, then the unloading time is reduced, but the article transportation efficiency may deteriorate
Solution Approach 1:
The transport device performs preliminary transfers of both articles to itself before the main travel to the relay section. This preliminary action optimizes the subsequent transport operation by having both articles ready for simultaneous delivery, reducing total unloading time while maintaining efficient article transportation through coordinated multi-article handling
Solution Approach 2:
The transport device maintains continuous useful action by transferring articles in an optimized sequence and traveling to the relay section without unnecessary return trips. The coordinated transfer and travel operations eliminate idle time and ensure continuous productive operation, improving both unloading speed and overall transportation efficiency
Data Source
AI summary
An unloading priority mode is a mode for causing a transport device to execute a first transfer operation, a second transfer operation, a first travel operation, a third transfer operation, and a second travel operation in this order. The first transfer operation is an operation of transferring a second article to the transport device. The second transfer operation is an operation of transferring a first article to the transport device. The first travel operation is an operation of traveling to a position corresponding to a relay section while holding the first article and the second article. The third transfer operation is an operation of transferring the first article to the relay section, and thereafter transferring a third article to the transport device. The second travel operation is an operation of traveling to a position corresponding to a storage section while holding the second article and the third article.