UWB Wireless Avionic Docking Interface for Secure Data Exchange

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Solution Overview

Problem

Current communication technologies between portable computer systems and avionic equipment in aircraft are vulnerable to security risks, electromagnetic interference, and require complex physical connections, limiting flexibility and reliability.

Innovation Solution

A device utilizing a wide band high output wireless transmitter-receiver for very short range point-to-point communication between portable computer systems and avionic equipment, reducing the need for physical connections and enhancing security through ultra-wide band (UWB) technology, which is designed to minimize electromagnetic interference and ensure confidentiality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical connections are used between portable terminals and avionic equipment, then security and electromagnetic interference protection are improved, but device complexity and installation difficulty increase

Engineering Contradiction:
ImprovesecurityVSAvoidconnection complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical connection system (physical connectors and cables) with a wireless communication system using ultra-wide band technology. This substitution eliminates the need for physical connections while maintaining security through the inherent characteristics of UWB signals that are difficult to intercept over short distances, thus resolving the contradiction between security and connection complexity.

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

Solution Approach 2:

The patent introduces an intermediary wireless communication interface that mediates between the portable terminal and avionic equipment. This intermediary layer provides secure data transmission without requiring direct physical contact, allowing the system to achieve both security and reduced complexity by using the wireless medium as a secure bridge.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If physical connectors are used for EFB docking, then connection reliability is improved, but ease of operation and flexibility deteriorate

Engineering Contradiction:
Improveconnection reliabilityVSAvoidflexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical docking system with wireless UWB communication, eliminating the need for physical connectors. This allows the portable terminal to connect and disconnect freely without mechanical constraints, significantly improving ease of operation and flexibility while maintaining connection reliability through the robustness of UWB technology for short-range communication.

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

3Ease of operation

If traditional WiFi technology is used for wireless communication, then ease of operation is improved, but security and electromagnetic interference protection worsen

Engineering Contradiction:
Improvewireless connectivityVSAvoidsecurity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent changes the fundamental parameters of the wireless communication technology by switching from traditional WiFi (2.4 GHz ISM band) to ultra-wide band technology with much broader frequency spectrum utilization. This parameter change enables shorter communication distances, which inherently improve security by limiting the range over which signals can be intercepted, while maintaining the ease of wireless operation.

Inventive Principle:
Principle #35Parameter changes

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 provides secure, reliable, and flexible communication by eliminating the need for physical connectors, reducing installation difficulties, and minimizing electromagnetic interference, while ensuring confidentiality and reducing health risks associated with traditional WiFi technologies.

Implementation Method 1

at least one wide band high output wireless transmitter-receiver, adapted for carrying out a very short range point-to-point radio communication

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS8649785B2Device and method for communication between a portable computer system and items of avionics equipment
Publication Date: 2014.02.11 AIRBUS OPERATIONS (SAS)
  • US8649785B2 patent drawing
  • US8649785B2 patent drawing
  • US8649785B2 patent drawing

AI summary

A device for communication between a portable computer system including a display screen and avionic equipment items comprises shielded walls forming at least a partial Faraday cage. The device also includes at least one wide band high output wireless transmitter-receiver arranged inside the shielded walls and adapted for carrying out a very short range point-to-point radio communication with the portable computer system when the portable computer system is placed inside the shielded walls. The device also includes at least one interface connected to the avionic equipment items and adapted for transmitting data originating from the portable computer system to the avionic equipment items and data originating from the avionic equipment items to the portable computer system, through the at least one said transmitter-receiver.