Dynamic Process Sequencing for Materials Handling Bottlenecks

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Solution Overview

Problem

Materials handling facilities face inefficiencies in processing orders due to variabilities in unit handling processes, leading to accumulation of items and suboptimal resource utilization, which can result in reduced processing capacity and unnecessary capital expenditure.

Innovation Solution

A system and method for process management in materials handling facilities that includes a control system to manage throughput rates, prioritize shipments, and optimize the order of unit release to packing stations based on physical dimensions and other criteria, ensuring efficient resource allocation and minimizing bottlenecks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If sequential processing is used in materials handling facilities, then process order is maintained, but processing speed and throughput are reduced

Engineering Contradiction:
Improveprocess orderVSAvoidthroughput rate
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The system dynamically adjusts process sequencing based on real-time conditions. Different processing sequences are selected depending on item characteristics, resource availability, and facility state, allowing the system to optimize throughput while maintaining necessary process integrity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes processing parameters including sequence, speed, and resource allocation based on item characteristics and facility conditions. This allows flexible adjustment of processing workflows to maximize throughput while maintaining quality standards.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If resources are expanded to handle variability, then processing capacity increases, but capital expenditure increases

Engineering Contradiction:
Improveprocessing capacityVSAvoidcapital expenditure
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The system enables existing resources to perform multiple functions and handle various item types through flexible task assignment and dynamic resource allocation. This reduces the need for dedicated specialized resources for each item type, lowering capital expenditure while maintaining processing capacity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses automated control and optimization algorithms to manage resource allocation and processing sequences without requiring additional human operators or manual intervention. This self-optimizing capability maximizes the utilization of existing resources, reducing the need for expansion.

Inventive Principle:
Principle #25Self-service

3Device complexity

If fixed capacity resources are used, then resource allocation is simple, but resource utilization efficiency decreases

Engineering Contradiction:
Improveresource allocation complexityVSAvoidresource utilization efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system dynamically reallocates fixed capacity resources based on real-time demand and item characteristics. Resources are assigned to different tasks and processes as needed, maximizing utilization efficiency while maintaining manageable complexity through automated control.

Inventive Principle:
Principle #15Dynamics

4Quantity of substance

If items accumulate between processes, then buffer capacity increases, but processing time and productivity decrease

Engineering Contradiction:
Improvebuffer capacityVSAvoidprocessing time
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The system performs preliminary actions by proactively managing item flow and anticipating bottlenecks. It adjusts processing sequences and resource allocation in advance to prevent accumulation, reducing the need for large buffers and minimizing processing delays.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2577412B1System and method for process management in a materials handling facility
Publication Date: 2019.10.16 AMAZON TECH INC
  • EP2577412B1 patent drawingFigure 1
  • EP2577412B1 patent drawingFigure 2
  • EP2577412B1 patent drawingFigure 3

AI summary

Various embodiments of a system and method for process management in a materials handling facility are described. Embodiments may include a process control component configured to generate a model of multiple unit handling processes of a materials handling facility. For each process, the model may indicate a measured throughput rate. The process control component may be configured to, based on at least one target output rate that is a goal for the output rate of a given unit handling process, evaluate the model to generate a particular target throughput rate that is a goal for the respective throughput rate of a particular unit handling process that is performed prior to the given unit handling process. The process control component may be configured to, based on the particular target throughput rate, generate one or more instructions to control the respective throughput rate of units processed by the particular unit handling process.