Delivery Van Door Selection for Shifting Cargo Retrieval

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Solution Overview

Problem

The challenge of locating objects in a cargo space of a delivery van is exacerbated by shifting due to inertial forces during maneuvers, leading to time-consuming and inefficient searches, especially when the cargo area lacks shelving and items are placed chaotically, increasing delivery time and costs.

Innovation Solution

A computer-aided method using a positioning device with a camera or laser scanner, integrated with a control system, tracks the current position of objects in the cargo space and determines the closest door for retrieval, displaying this information to the driver through visual, acoustic, or haptic signals, enabling efficient door selection and object location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If objects are placed on the loading platform without shelving to maximize cargo space, then cargo space utilization is improved, but locating objects becomes time-consuming due to chaotic arrangement and shifting

Engineering Contradiction:
Improvecargo space utilizationVSAvoidtime for locating objects
Core Design Contradiction:
Volume of moving objectVSLoss of time

Solution Approach 1:

The system performs preliminary actions by detecting and recording the initial positions of all objects during loading, storing this information in a database before the delivery journey begins. This preliminary positioning data serves as the baseline for subsequent tracking and door selection operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The positioning device continuously monitors object positions during transport and provides feedback to the control system. This feedback loop enables real-time tracking of object locations despite shifting due to inertial forces, allowing the system to dynamically update the nearest door calculation.

Inventive Principle:
Principle #23Feedback

2Quantity of substance

If the cargo area is loaded with dozens or hundreds of items to be delivered sequentially, then delivery capacity is improved, but searching for items results in significant time loss

Engineering Contradiction:
Improvenumber of items deliveredVSAvoidsearch time per item
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The manual mechanical search process is replaced with an automated optical/electronic system. The positioning device with camera and laser scanner automatically detects object positions, while the control system processes this data to determine the nearest door, eliminating the need for manual searching through the cargo area.

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

Solution Approach 2:

The system creates a digital copy or representation of the cargo space layout by detecting object positions and storing them in a database. This virtual model allows the control system to calculate and identify the nearest door without physically searching through the actual cargo area.

Inventive Principle:
Principle #26Copying

3Ease of operation

If objects are placed against side doors for easy access, then retrieval efficiency is improved, but inertial forces during cornering cause objects to shift to the opposite side

Engineering Contradiction:
Improveease of object retrievalVSAvoidobject position stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The system transitions from a static assumption of object positions to a dynamic tracking approach. The positioning device continuously monitors object locations during motion, and the control system dynamically recalculates the nearest door based on current positions, adapting to the dynamic nature of objects subject to inertial forces.

Inventive Principle:
Principle #15Dynamics

4Measurement precision

If a positioning device with camera and laser scanner is installed to track object positions, then object location accuracy is improved, but device complexity increases

Engineering Contradiction:
Improveobject position detection accuracyVSAvoidcomplexity of positioning and control system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system merges multiple functions into an integrated solution: the positioning device combines camera and laser scanner capabilities, while the control system integrates database management, nearest door calculation, and door control functions. This consolidation reduces overall system complexity compared to having separate systems for each function.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method significantly reduces search time and prevents incorrect deliveries by providing real-time guidance on the nearest door and object location, allowing for efficient retrieval even in a shelving-free cargo space, enhancing delivery efficiency and reducing transport damage.

Implementation Method 1

a positioning device provided on the ceiling of the cargo space, wherein the plurality of doors comprise a left side door, a right side door and a tailgate of the cargo space, and the van has a control system, comprising the steps of: detecting a storage location of the object in the cargo space during loading of the cargo space by means of the positioning device

Methodology Applied
Scientific EffectCamera imaging: Photography

Implementation Method 2

which is in communication with the control system and comprises a camera and/or a laser scanner

Methodology Applied
Scientific EffectLaser scanning: LIDAR

Data Source

PatentEP3543928B1Method for opening a door of a delivery vehicle
Publication Date: 2026.02.11 DEUT POST AG
  • EP3543928B1 patent drawingFigure 1
  • EP3543928B1 patent drawingFigure 2

AI summary

The invention relates to a method for locating at least one object (8) transported in a cargo space (3) of a delivery van (1), wherein the cargo space (3) has a plurality of doors (7) for removing the at least one object (8) from the cargo space (3) and the delivery van (1) has a control unit (10), comprising the steps of: determining a current position of the at least one object (8) in the cargo space (3) during a journey of the delivery van (1) by means of a position determination device (9) in communication with the control unit, and for removing the at least one object (8) from the cargo space (3), determining the door (7) from the plurality of doors (7) with the smallest distance to the current position,Displaying the designated door (7) by means of a display device (11) in communication with the control unit (10) and/or opening the designated door (7) and displaying the current position of the at least one object (8) in the cargo space (3) by means of the display device (11).