Hybrid Automated Manual Storage Facility Priority Unloading

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Solution Overview

Problem

Existing article storage facilities face a trade-off between operational efficiency and installation costs, as high automation leads to increased costs but reduces efficiency when manual labor is introduced.

Innovation Solution

The proposed article storage facility consists of a first storeroom with high automation, a second storeroom with lower automation, and a retrieval work section, where a control system prioritizes unloading article holders from the first storeroom to maintain high operational efficiency while keeping installation costs low.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the entire storeroom is automated with stacker cranes and control systems, then operational efficiency is improved, but installation costs increase

Engineering Contradiction:
Improveoperational efficiencyVSAvoidinstallation costs
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The storeroom is divided into a first storeroom with high automation (stacker cranes) and a second storeroom with lower automation (manual or simplified handling). This segmentation allows the system to achieve high operational efficiency for frequently accessed articles while reducing installation costs for less critical storage areas, thereby resolving the contradiction between productivity and device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different levels of automation are applied to different regions of the storeroom based on local requirements. The first storeroom receives automated stacker cranes for high-frequency operations, while the second storeroom uses simpler manual handling for low-frequency operations. This local differentiation optimizes the balance between operational efficiency and installation costs.

Inventive Principle:
Principle #3Local quality

2Device complexity

If manual labor is introduced to reduce automation, then installation costs are reduced, but operational efficiency deteriorates

Engineering Contradiction:
Improveinstallation costsVSAvoidoperational efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system segments storage operations into automated handling for the first storeroom and manual handling for the second storeroom. This ensures that high-value, frequent-access articles benefit from automated efficiency while less critical articles use cost-effective manual methods, preventing overall operational efficiency from deteriorating despite reduced automation in parts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of fully automating the entire storeroom, the system applies automation partially to the first storeroom only. This partial automation achieves sufficient operational efficiency for critical operations while avoiding the excessive costs of complete automation, resolving the contradiction between installation costs and productivity.

Inventive Principle:
Principle #16Partial or excessive action

3Quantity of substance

If more housing sections are added to increase storage capacity, then article holder storage is improved, but system complexity and costs increase

Engineering Contradiction:
Improvestorage capacityVSAvoidsystem complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

Storage capacity is expanded by adding housing sections to the second storeroom which uses simpler manual handling. This approach increases overall storage capacity while adding less complexity compared to expanding the automated first storeroom, as manual sections require fewer integrated control systems and mechanisms.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4556404A1Article storage facility
Publication Date: 2025.05.21 DAIFUKU CO LTD
  • EP4556404A1 patent drawingFigure 1
  • EP4556404A1 patent drawingFigure 2
  • EP4556404A1 patent drawingFigure 3

AI summary

An article storage facility 100 includes a first storeroom 1 and a second storeroom 2 with a lower degree of automation than the first storeroom 1. The number of first housing sections 12a in the first storeroom 1 is greater than or equal to a total number of target types, which are types of articles 9 to be stored in the first storeroom 1, out of the articles 9 of all types to be specified by order information. The number of second housing sections 21a in the second storeroom 2 is greater than the number of first housing sections 12a. A control system 10 executes an unloading process to cause the transport apparatus 4 to unload an article holder 8 holding articles 9 of the ordered type from either the first storeroom 1 or the second storeroom 2 to a retrieval work section 3 such that the first storeroom 1 is given priority over the second storeroom 2.