Mobile Anti-Theft Locking With Wireless User Pairing

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Solution Overview

Problem

Existing anti-theft devices require physical keys or code memorization, which can be cumbersome and insecure, limiting their usability and reliability.

Innovation Solution

A mobile anti-theft device using a wireless telecommunications interface and a locking mechanism that requires pairing with a user's mobile device via NFC or Bluetooth, allowing secure and keyless operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical keys or code memorization are used for anti-theft devices, then the locking mechanism is simple and reliable, but the ease of operation deteriorates and requires user burden

Engineering Contradiction:
Improvelocking reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the traditional mechanical key-based locking system with a wireless communication-based electronic locking system. The locking mechanism uses a controller that receives wireless signals from a mobile device to activate the locking block, eliminating the need for physical keys and code memorization while maintaining secure locking functionality.

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

Solution Approach 2:

The patent introduces a mobile device as an intermediary between the user and the locking mechanism. The mobile device communicates wirelessly with the anti-theft device to transmit authentication information, allowing the user to lock and unlock the device without direct physical interaction with keys or codes.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If physical keys are required for locking, then the device structure remains simple, but the ease of manufacture and usability deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidease of operation
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The patent replaces mechanical key components with electronic and wireless components. The locking mechanism uses a controller and wireless interface instead of physical keys, simplifying the overall device structure while improving ease of operation through keyless access.

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

3Reliability

If code memorization is required, then the locking mechanism is secure, but the ease of operation and user convenience deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the code memorization system with a wireless authentication system. The controller receives wireless signals from a mobile device to authenticate the user and activate the locking block, eliminating the need to memorize codes while maintaining security.

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

Solution Approach 2:

The mobile device serves as an intermediary that handles authentication wirelessly. Instead of requiring the user to memorize and input codes, the mobile device communicates authentication information to the anti-theft device, improving convenience while maintaining security.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3839898B1Mobile Anti-theft device and method for protecting against the theft of an object by means of a mobile Anti-theft device
Publication Date: 2026.02.04 ALSTOM HOLDINGS SA
  • EP3839898B1 patent drawingFigure 1
  • EP3839898B1 patent drawingFigure 2
  • EP3839898B1 patent drawingFigure 3

AI summary

Anti-theft device (10), comprising a lanyard (12) alternately in an open or closed loop with the rest of the anti-theft device, for linking an object to be protected against theft to a support, a lock (40) selectively in a locked and unlocked closed loop state, a controller (20) with a wireless telecommunications interface (51), which, in an initial pairing operation, obtains an identifier from a wireless telecommunications mobile device (60), via said wireless telecommunications interface, and then receives an identifier via said interface and only allows a lock unlock command if the received identifier is identical to the identifier initially obtained.