Autonomous Robot Antenna for Transponder Reading in Tyre Stacks

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Solution Overview

Problem

Current methods for managing pneumatic tires with transponders in warehouses are inefficient due to the need for manual reading of transponders, which requires operators to frequently descend from forklifts and navigate around stacks, leading to significant time losses and potential damage.

Innovation Solution

An autonomously guided robot equipped with a reader device and a telescopic antenna is used to read transponders on vertically stacked pneumatic tires, allowing for simultaneous reading of all tires in a stack without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If manual reading of transponders is used, then reading capability is achieved, but time consumption and operational complexity increase significantly

Engineering Contradiction:
Improvetime for reading transpondersVSAvoidmanual operation complexity
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The patent replaces the manual mechanical operation of descending from forklifts and physically approaching each tire with an automated robotic system. The robot autonomously navigates to stacks, positions itself, and performs transponder readings without human intervention, substituting manual labor with automated mechanical systems.

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

Solution Approach 2:

The robotic system performs self-navigation, self-positioning, and self-execution of transponder reading tasks. The robot independently identifies stacks, moves to appropriate positions, and completes readings without requiring operator descent or manual guidance, making the system self-sufficient for the reading operation.

Inventive Principle:
Principle #25Self-service

2Productivity

If forklifts are used for tire handling, then tire movement capability is achieved, but reading efficiency deteriorates due to operator constraints

Engineering Contradiction:
Improvereading efficiencyVSAvoidoperational procedure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system separates the tire handling function (performed by forklifts) from the transponder reading function (performed by autonomous robots). This segmentation allows each system to optimize for its specific task, with forklifts focusing on movement and robots focusing on reading, thereby improving overall reading efficiency without complicating either system's operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The robotic system is designed to work in conjunction with existing forklift operations, serving as a complementary multi-functional system. The robot can read transponders on stationary stacks and on moving forklifts, providing universal reading capability across different operational scenarios without interfering with forklift productivity.

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

3Length of stationary object

If additional external transponders are applied on tire surfaces, then reading distance is improved, but costs and waste increase

Engineering Contradiction:
Improvetransponder reading distanceVSAvoidmanufacturing cost
Core Design Contradiction:
Length of stationary objectVSEase of manufacture

Solution Approach 1:

Instead of adding physical transponders to tires, the patent uses a robotic system that creates a functional copy of the reading capability at the forklift location. The robot reads the existing embedded transponders up close, eliminating the need to modify tires with additional external transponders while achieving the same information capture goal.

Inventive Principle:
Principle #26Copying

4Productivity

If elongated antennas are inserted into tire stacks for reading, then simultaneous reading capability is achieved, but operational time and risk of damage increase

Engineering Contradiction:
Improvesimultaneous reading capabilityVSAvoidtime for antenna insertion and extraction
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent replaces the mechanical antenna insertion method with a robotic system that uses proximity-based reading. The robot positions itself near the tire stack and reads transponders without physical insertion, substituting the intrusive mechanical approach with a non-contact or minimal-contact reading method that reduces time and damage risk.

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

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 solution significantly reduces operator time and risk of damage by enabling automated, efficient reading of transponders, improving warehouse management and reducing operational costs.

Implementation Method 1

transponders (i.e., with electronic devices that are suitable for communicating using radio frequency)

Methodology Applied
Scientific EffectRadio frequency: Electromagnetic Induction

Data Source

PatentEP4208813B1Method for the management of a warehouse that houses pneumatic tyres fitted with transponders and arranged in vertical stacks
Publication Date: 2025.05.14 BRIDGESTONE EURO NV SA
  • EP4208813B1 patent drawingFigure 1
  • EP4208813B1 patent drawingFigure 2~3
  • EP4208813B1 patent drawingFigure 4

AI summary

Autonomously guided robot (8) for the automatic recognition of pneumatic tyres (2) fitted with transponders (7) and arranged in a stack. The autonomously guided robot (8) has: a main body (21) that is capable of moving independently within a storage warehouse (1) wherein the stack of pneumatic tyres (7) is arranged; a reader device (9) which is provided with a reader component (10) and an antenna(11) and that is capable of reading the transponders (7); a movement unit (14) which is mounted on the main body (21) and that supports the antenna (11) for moving the antenna (11) in relation the main body (21) in a vertical direction (Z); and a control unit (24).