Conveyance Vehicle System Predicted Command Loading Port Congestion
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Solution Overview
Problem
In conventional conveyance vehicle systems, the throughput at loading ports in automated warehouses is difficult to improve, leading to decreased conveyance efficiency due to articles remaining at the loading port, preventing continuous loading and reducing overall system efficiency.
Innovation Solution
Implementing a predicted conveyance command system that includes ID information and loading instructions before articles are loaded, allowing the automated warehouse controller to prepare for incoming articles and manage rack positions, thereby reducing congestion and increasing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If articles are conveyed continuously to the loading port, then the throughput of the conveyance vehicle system is improved, but articles may remain at the loading port causing congestion and reducing conveyance efficiency
Solution Approach 1:
The automated warehouse controller receives the predicted conveyance command before the article is actually loaded from the conveyance vehicle. This allows the controller to perform conveyance preparation work in advance, such as positioning racks and preparing receiving mechanisms, so that articles can be promptly transferred to racks upon arrival, preventing congestion at the loading port
Solution Approach 2:
The system implements a command transmission mechanism where the conveyance vehicle controller sends predicted conveyance commands to the automated warehouse controller. This feedback loop enables the warehouse controller to anticipate incoming articles and adjust its operations accordingly, coordinating the conveyance process to maintain continuous flow without overload
2Reliability
If the automated warehouse controller waits for the article to be loaded before receiving the conveyance command, then command accuracy is improved, but conveyance preparation time is increased
Solution Approach 1:
The controller receives the predicted conveyance command in advance, before the article is physically loaded. This preliminary reception of commands allows the automated warehouse to prepare its internal systems and rack positions ahead of time, reducing the overall conveyance preparation time while maintaining operational accuracy
3Productivity
If multiple articles are conveyed simultaneously to the loading port, then the system efficiency is improved, but the loading port congestion increases preventing continuous loading
Solution Approach 1:
The automated warehouse controller receives predicted conveyance commands for multiple articles and uses this information to coordinate rack positioning and receiving operations. This feedback mechanism allows the system to manage multiple simultaneous conveyances by preparing appropriate receiving capacity, preventing loading port congestion while maintaining high conveyance efficiency
Solution Approach 2:
By receiving predicted conveyance commands in advance, the automated warehouse controller can prepare multiple rack positions and coordinate receiving operations before articles arrive. This preliminary preparation enables the system to handle multiple simultaneous conveyances without congestion at the loading port
Data Source
AI summary
A conveyance vehicle system that achieves an increased efficiency of loading an article from a conveyance vehicle into a loading opening of an automated warehouse, includes a stocker, a conveyance vehicle, and a conveyance vehicle controller. The stocker includes racks, a loading port, and a stocker controller. The conveyance vehicle loads an article into the loading port of the stocker. The conveyance vehicle controller assigns the conveyance vehicle with an article conveyance command to convey the article to the stocker. The stocker controller receives a predicted conveyance command before the article is loaded from the conveyance vehicle into the stocker. The predicted conveyance command includes ID information of the article and information indicating whether or not the article is to be loaded into a rack.