Automatic handling of mis-delivered items in computerized parcel locker systems

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Solution Overview

Problem

Conventional parcel locker systems face issues with misdelivery of parcels to incorrect lockers and recipients, misuse by users, and inefficiencies in parcel assignment due to incorrect user interactions and hardware failures.

Innovation Solution

The system employs sensors to verify parcel presence in assigned lockers, reassigns parcels to correct lockers, and includes user and manager interfaces to correct misdeliveries and sensor failures, using a controller to manage locker operations and communicate with remote systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional parcel locker systems rely on manual courier placement and basic locker assignment, then the system is simple to operate, but misdelivery to incorrect lockers occurs and delivery accuracy deteriorates

Engineering Contradiction:
Improvedelivery accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by proactively detecting potential misdeliveries through sensor verification before finalizing the delivery status. Weight sensors and computer vision systems check parcel presence and correctness in advance, allowing the system to identify and correct misdeliveries before they are confirmed, thus improving delivery accuracy without requiring complete system redesign

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops where sensors monitor locker contents, weight changes, and parcel presence. This feedback mechanism allows real-time verification of correct parcel placement and triggers automated reassignment protocols when misdelivery is detected, significantly improving delivery accuracy while managing complexity through automated control algorithms

Inventive Principle:
Principle #23Feedback

2Reliability

If the system implements automated sensor verification and parcel reassignment, then misdelivery detection improves, but device complexity increases

Engineering Contradiction:
Improvesystem reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system employs self-service mechanisms where automated sensors and computer vision systems independently verify parcel delivery correctness without human intervention. The system autonomously detects misdeliveries, triggers reassignment protocols, and manages correction workflows automatically, enhancing reliability while containing complexity through self-managing algorithms

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual verification processes are replaced with automated sensor systems, weight detection, and computer vision technology. This substitution of mechanical/manual operations with electronic sensing and automated control improves system reliability by eliminating human error while managing complexity through integrated software control

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

3Ease of operation

If multiple lockers are kept open for simultaneous access, then user convenience improves, but misdelivery risk increases due to courier confusion

Engineering Contradiction:
Improveuser convenienceVSAvoiddelivery accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system uses real-time feedback from door sensors, weight sensors, and parcel tracking to monitor which lockers are open and their current status. This feedback enables dynamic management of open lockers and provides continuous verification to prevent misdelivery, allowing multiple lockers to remain accessible while maintaining delivery accuracy through automated monitoring

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary verification checks before finalizing deliveries to lockers that are open simultaneously. Weight sensors and vision systems verify correct parcel placement in advance, and the system proactively identifies potential misdeliveries among multiple open lockers, ensuring accuracy is maintained despite concurrent access by multiple users

Inventive Principle:
Principle #10Preliminary action

4Measurement precision

If the system proactively detects and corrects misdeliveries, then delivery accuracy improves, but loss of time occurs due to reassignment operations

Engineering Contradiction:
Improvedelivery accuracyVSAvoidreassignment time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system rapidly processes misdelivery detection and reassignment operations to minimize time loss. Automated sensors immediately identify misdeliveries, and the system quickly executes reassignment protocols by transferring parcels to correct lockers, rushing through the correction process to minimize disruption and time loss while maintaining high delivery accuracy

Inventive Principle:
Principle #21Skipping (Rushing through)

Data Source

PatentEP4258196B1Automatic handling of mis-delivered items in computerized parcel locker systems
Publication Date: 2025.06.25 QUADIENT TECH FRANCE
  • EP4258196B1 patent drawingFigure 1
  • EP4258196B1 patent drawingFigure 2
  • EP4258196B1 patent drawingFigure 3

AI summary

An automated computerized parcel locker system is provided, which includes multiple lockers in a common housing, each having one or more sensors that indicate whether an item is present in the locker, the status of the locker door, and the like. The parcel locker system includes routines that allow for automatic processing of parcels delivered to an incorrect locker, missing parcels, objects other than delivered parcels placed into the lockers, and the like. The routines also allow for automated and semi-automated management, servicing, and use of the lockers, for example to indicate to a courier or other user which lockers are available for delivery and which contain delivered parcels.