Wireless Key Interference Detection and Resource Adaptation

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Solution Overview

Problem

Wireless communication between a transportation vehicle key and a transportation vehicle is often disrupted by interference from external devices, leading to unreliable access and driving authorization systems, as existing systems fail to detect and mitigate such interference effectively.

Innovation Solution

A method and apparatus that detect interference in temporary communication resources, allowing for the disconnection of interferers or adaptation of communication resources, such as shifting transmission times or increasing signal power, to ensure reliable communication between the transportation vehicle key and the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless communication is implemented between transportation vehicle key and vehicle, then convenience of access and driving authorization is improved, but communication reliability deteriorates due to interference from external devices

Engineering Contradiction:
Improveconvenience of access and driving authorizationVSAvoidcommunication reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary interference detection in temporary communication resources before establishing wireless communication between the transportation vehicle key and vehicle. By detecting interference in advance and selecting alternative communication resources, the system prevents communication failures rather than reacting to them, thereby maintaining both convenience and reliability of keyless access and driving authorization.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If interference detection and mitigation measures are implemented, then communication reliability is improved, but device complexity increases

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

Solution Approach 1:

The system implements a feedback mechanism where the vehicle and key continuously monitor communication quality and automatically adjust communication resources based on detected interference. The control device receives feedback about communication failures or interference conditions and dynamically selects alternative temporary communication resources, enabling reliable communication without requiring complex manual configuration or additional hardware.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If temporary communication resources are used for wireless communication, then adaptability is improved, but susceptibility to interference increases

Engineering Contradiction:
Improveadaptability of communication resourcesVSAvoidsusceptibility to interference
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

Before using temporary communication resources for wireless communication between the key and vehicle, the system performs preliminary detection to ascertain whether interference is present in those resources. This advance checking allows the system to adaptively select communication resources that are both flexible for keyless operation and protected from external interference, resolving the contradiction between adaptability and susceptibility.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10562493B2Method, computer program and device for reducing interference of temporary communication resources used for wireless communication between a transportation vehicle key and a transportation vehicle
Publication Date: 2020.02.18 VOLKSWAGEN AG
  • US10562493B2 patent drawing
  • US10562493B2 patent drawing
  • US10562493B2 patent drawing

AI summary

A method, a computer program, and a device for reducing interference of temporary communication resources used for a wireless communication between a transportation vehicle key and a transportation vehicle. The method includes determining whether interference of the temporary communication resources is present and switching off the device causing the interference or adjusting the use of the temporary communication resources for the wireless communication between the transportation vehicle key and the transportation vehicle in response to interference being present.