Aircraft Power Cable Data Transmission Security
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Solution Overview
Problem
Existing aircraft systems face challenges in efficiently and securely transmitting data between different information domains over power cables, requiring costly and operationally difficult additional networking infrastructure to prevent data leakage between domains.
Innovation Solution
The implementation of dual electrical connectors and modems for each power cable, coupled with separate data communication networks, enables secure and efficient data transmission by physically separating and converting data protocols between power cables and data communication networks, preventing cross-domain data reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional networking infrastructure is equipped to facilitate separate data transmission for different information domains, then data security and domain isolation are improved, but device complexity, cost, and installation difficulty worsen
Solution Approach 1:
The patent divides the data transmission system into separate physical channels by assigning dedicated power cables and electrical connectors to different information domains (military, civilian, IFE, AIS, ACD). This segmentation ensures that data from one domain cannot leak into another domain through the power transmission infrastructure, thereby improving data security without requiring complex additional networking hardware.
Solution Approach 2:
The patent uses power cables as intermediary transmission media that simultaneously carry both electrical power and data signals. By embedding data transmission within the existing power cable infrastructure, the system avoids the need for separate dedicated data communication lines, thus reducing overall system complexity while maintaining security through physical domain separation.
2Reliability
If separate power cables are used for different information domains, then data transmission security is improved, but ease of operation and installation worsen
Solution Approach 1:
The patent makes the power cable infrastructure universal by enabling it to perform both power transmission and data communication functions simultaneously. The electrical connectors and power cables serve dual purposes: delivering electrical power to aircraft systems and transmitting data between ground stations and aircraft, thereby simplifying installation and operation compared to requiring separate dedicated infrastructure for each function.
Data Source
AI summary
An aircraft includes a first electrical connector configured to couple with a first power cable, a first data communication network and a first modem coupled to first electrical connector and first data communication network and is configured to transmit data received at first electrical connector through first power cable to first data communication network and to transmit data from first data communication network to first power cable through first electrical connector. The aircraft additionally includes a second electrical connector configured to couple with a second power cable, a second data communication network and a second modem coupled to second electrical connector and to second data communication network and is configured to transmit data received at second electrical connector through second power cable to second data communication network and to transmit data from second data communication network to second power cable through second electrical connector.