RFID Tool Tracking System for Aeronautics Workshop Safety

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In aeronautics workshops, tools frequently go missing, leading to operational delays, potential safety hazards, and fraudulent practices due to the inefficiencies of manual bar code-based tracking systems, which are time-consuming and prone to errors and tampering.

Innovation Solution

An RFID-based item tracking system that uses electronic worker and item identification tags, integrated with a control system for real-time monitoring of tool transactions, ensuring accurate tracking and preventing fraudulent practices by permanently attaching tags to tools with a destructive adhesive.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual bar code tracking is used, then the system is simple to implement, but the tracking process is time-consuming and prone to human error

Engineering Contradiction:
Improvetracking speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical bar code scanning with automated RFID (Radio Frequency Identification) technology. RFID readers automatically detect and read tags on tools without requiring physical contact or line-of-sight, eliminating the need for manual scanning operations and significantly improving tracking speed while reducing human error.

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

Solution Approach 2:

The system enables automatic self-tracking of tools through RFID tags that continuously transmit their identity information. When tools are picked up or returned, the RFID readers automatically detect the tags and update the database without requiring worker intervention, making the tracking process self-service and highly efficient.

Inventive Principle:
Principle #25Self-service

2Reliability

If bar code stickers are used on tools, then the implementation cost is low, but the stickers can be peeled off and become FOD (Foreign Object Debris)

Engineering Contradiction:
Improvetag retentionVSAvoidFOD risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the physical and chemical parameters of the tag attachment method. Instead of using removable adhesive stickers, the system employs RFID tags with permanent attachment mechanisms such as laser welding, ultrasonic welding, or high-strength adhesive bonding that permanently affix the tag to the tool, eliminating the risk of the tag becoming FOD.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If manual registration of tool taking and returning is required, then the system structure is simple, but fraudulent practices can occur and control problems arise

Engineering Contradiction:
Improvecontrol accuracyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements automatic feedback loops where RFID readers continuously monitor tool locations and automatically update the central database. The system provides real-time feedback on tool status (in use, returned, lost) and can trigger alerts or notifications when anomalies occur, such as tools not returned by deadline or attempted theft, thereby preventing fraudulent practices through automated surveillance.

Inventive Principle:
Principle #23Feedback

4Productivity

If RFID technology is implemented for automatic monitoring, then real-time tracking control is achieved, but the system complexity and implementation cost increase

Engineering Contradiction:
Improvetracking efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the RFID tracking system into modular segments: individual RFID tags on each tool, portable RFID readers for mobile scanning, fixed RFID readers at storage locations, and a centralized database management system. This segmentation allows the system to be implemented in phases and scaled according to needs, reducing the perceived complexity while maintaining high tracking efficiency.

Inventive Principle:
Principle #1Segmentation

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

The system provides real-time, tamper-proof tracking of tools, preventing losses and misuse, ensuring immediate control over tool usage and history, reducing operational disruptions and enhancing safety by eliminating false alarms and fraudulent activities.

Implementation Method 1

The present inventive system comprises: a plurality of electronic worker identification tags, each worker identification tag assigned to a respective worker... a plurality of electronic item identification tags... a plurality of electronic worker identification tags readers for each storage area... wherein the electronic worker identification tags reader, reads a worker ID when the ID is in the reading range thereof

Methodology Applied
Scientific EffectRFID (Radio Frequency Identification): Electromagnetic Induction

Data Source

PatentUS7557709B2Item tracking system
Publication Date: 2009.07.07 RFID MEXICO S A DE
  • US7557709B2 patent drawing
  • US7557709B2 patent drawing
  • US7557709B2 patent drawing

AI summary

An item tracking system using RFID technology for automatically monitoring the taking and returning operations of items from a storage location inside a working area provides an “on line” status of each tool as well as a usage history of each tool. Furthermore, the system knows which item has been taken or stored from which storage area by which worker and when.