Aircraft Data Transmission Channel Allocation
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Solution Overview
Problem
The rapid growth of data in aircraft onboard systems necessitates efficient and secure terrestrial data transmission between aircraft and external networks, which is often hindered by limited and insecure communication channels at airports, requiring a method to allocate data domains across multiple communication channels based on security levels.
Innovation Solution
A method and system for terrestrial data transmission that identifies and allocates communication channels based on security levels, using a combination of broadband over power line, wireless, and other channels to ensure secure and efficient data transfer, with the aircraft control domain receiving the highest security and passenger information and entertainment systems receiving the lowest, and utilizing redundant paths for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple communication channels are used for data transmission, then transmission security is improved, but system complexity increases
Solution Approach 1:
The patent segments data into different data domains based on security requirements, with each domain transmitted through appropriately selected communication channels. This segmentation allows the system to achieve high security for critical data while managing overall system complexity through organized classification and targeted channel selection.
2Reliability
If data is transmitted through multiple communication channels, then transmission security is improved, but data transmission rate decreases
Solution Approach 1:
The patent applies local quality by assigning different security levels and channel selections to different data domains. Critical data domains use secure but slower channels, while non-critical domains use faster channels, optimizing the overall transmission rate while maintaining necessary security standards for each specific data type.
Solution Approach 2:
The system transmits only the necessary portion of data through multiple secure channels rather than all data, while other data domains use single or fewer channels. This partial application of multi-channel transmission maintains security for critical data without unnecessarily reducing the overall transmission rate.
3Reliability
If communication channels are allocated based on security levels, then data security is improved, but channel availability is reduced
Solution Approach 1:
The patent implements dynamic channel allocation where the selection of communication channels is adjusted in real-time based on the security requirements of each data domain. This dynamic approach allows the system to adapt channel availability to match security needs, making high-security channels available when required while utilizing broader channel availability for less sensitive data.
Data Source
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AI summary
Provided are methods and systems for terrestrial data transmission between aircraft and external networks, such as airline networks and/or airport networks. While an aircraft is landed, various data domains may need to be transmitted between the aircraft and such networks using two or more communication channels available to the aircraft. These channels may include wired and/or wireless channels, such as broadband over power line channels, Ethernet channels, Wi-Fi channels, and cellular channels. The available communication channels are allocated to transmit particular data domains based on the security levels of these channels. For example, aircraft control domains may be transmitted using a more secure communication channel than passenger information domains and/or entertainment systems domains. In some embodiments, multiple communication channels may be used to transmit the same domain parsed into multiple transmission packets. The packets are recombined back into the data domain after the transmission.