Freight Container Loading Optimization Through 2D Layer Segmentation

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Solution Overview

Problem

Current methods for freight container loading are inefficient, relying heavily on manual calculations and spreadsheets, and are computationally expensive, making them unsuitable for daily operational planning.

Innovation Solution

A computer-based system utilizing heuristic algorithms and integer programming optimization models to optimize the placement of objects within 3-dimensional spaces, such as gaylords and trucks, by defining 2-dimensional layers and assigning objects within these layers to maximize space utilization and minimize the number of containers needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If computational heuristic methods are used to solve the 3-D container loading problem, then loading optimization is achieved, but computational cost and time consumption increase excessively

Engineering Contradiction:
Improveloading optimization efficiencyVSAvoidCPU time consumption
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent segments the 3-D container loading problem into multiple 2-D layer problems. Each layer is processed independently using optimization algorithms, which reduces the computational complexity from solving a single complex 3-D problem to solving multiple simpler 2-D problems. This segmentation enables efficient optimization while controlling CPU time consumption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transforms the 3-D container loading problem into a series of 2-D layer problems. By slicing the three-dimensional space into horizontal layers, the problem dimensionality is reduced, making it computationally tractable for daily operational planning while maintaining optimization effectiveness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If manual calculations and spreadsheets are used for container loading, then ease of operation is maintained, but loading optimization and space utilization are insufficient

Engineering Contradiction:
Improvemanual operation simplicityVSAvoidspace utilization efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system performs self-service optimization by automatically calculating the best loading configurations using mathematical models and algorithms. The computer system independently solves the optimization problem without requiring manual intervention, achieving both ease of operation (users simply input data) and high space utilization efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical calculation processes with automated computer-based optimization systems. The mathematical models and algorithms substitute for manual spreadsheet calculations, enabling the system to handle complex optimization problems that would be impractical to solve manually while maintaining user-friendly operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If existing computational methods are used for container loading optimization, then loading efficiency improves, but the complexity of the system increases

Engineering Contradiction:
Improvecontainer loading efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent reduces system complexity by segmenting the 3-D loading problem into multiple 2-D layer problems. This decomposition allows the use of simpler, well-established 2-D optimization algorithms rather than complex 3-D algorithms, making the overall system more manageable and easier to implement while maintaining high loading efficiency.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250322348A1Computational Methods and Systems for Freight Container Loading Optimization
Publication Date: 2025.10.16 ETHICON INC
  • US20250322348A1 patent drawing
  • US20250322348A1 patent drawing
  • US20250322348A1 patent drawing

AI summary

An analytical method to optimize gaylord building and truck loading for outbound container shipments includes defining, within the 3-dimensional physical space, one or more 2-dimensional layers, each 2-dimensional layer having a fixed height. Using one or more heuristic algorithms, for each of the one or more 2-dimensional layers, one or more objects of a plurality of objects can be assigned for placement within the two-dimensional layer, and one or more placement positions within the 2-dimensional layer can be assigned for each of the one or more of the plurality of objects. The assigned placement positions can be displayed, reported, or otherwise transmitted to a user or system.