Dynamic Variable Filter for Secure Wireless Vehicle Parameter Streaming
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Solution Overview
Problem
Current systems for collecting and managing aircraft operational data face challenges in efficiently handling the large volume of data generated daily across multiple aircraft, requiring improvements in secure wireless streaming to facilitate maintenance, route improvements, and incident analysis.
Innovation Solution
The implementation of an in-flight entertainment and communications (IFEC) system that streams aircraft operational parameters securely via a dynamic variable filter, allowing for real-time data transmission to a remote monitoring station while encrypting sensitive data, and adjusting filter parameters based on local and combined aircraft operating conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all aircraft operational parameters are transmitted continuously, then complete data availability is improved, but bandwidth consumption increases
Solution Approach 1:
The patent extracts and transmits only significant operational parameters that exceed defined thresholds, rather than transmitting all parameters continuously. The system identifies and filters out routine or insignificant data, sending only the critical portions that require attention for maintenance or analysis purposes.
Solution Approach 2:
The system applies partial action by transmitting data selectively based on significance thresholds. Instead of complete continuous transmission, it sends partial data sets that are sufficient for operational monitoring and maintenance planning, reducing overall bandwidth consumption while maintaining data effectiveness.
2Loss of energy
If a dynamic variable filter is implemented to reduce data transmission, then bandwidth usage is reduced, but system complexity increases
Solution Approach 1:
The IFEC system is enhanced to perform multiple functions: it continues its primary entertainment and communication roles while simultaneously implementing data filtering, threshold monitoring, and selective parameter transmission. This multi-functionality avoids adding dedicated separate systems for data management.
Solution Approach 2:
The system automatically monitors operational parameters, compares them against predefined thresholds, and autonomously determines which data to transmit without requiring external intervention or complex centralized control systems. The aircraft's own systems perform the filtering and selection.
3Reliability
If encryption is applied to secure data transmission, then data security is improved, but processing overhead increases
Solution Approach 1:
The encryption function is merged with the existing data transmission infrastructure of the IFEC system. Rather than implementing encryption as a separate standalone system, it is integrated into the same communication channels and processing pathways already in place for entertainment and communication data.
4Reliability
If continuous monitoring of all parameters is performed, then operational safety is improved, but data management complexity increases
Solution Approach 1:
The system extracts only the critical safety-relevant parameters that exceed thresholds from the complete set of operational data. By focusing on significant deviations rather than all parameters, it maintains operational safety monitoring while reducing the complexity of data management and analysis.
Data Source
AI summary
An in-flight entertainment and communications (IFEC) system configured to stream vehicle operational parameters from avionics systems connected thereto. An avionics interface defines a node of an avionics bus, and the avionics systems are connectible to the avionics interface over the avionics bus to transmit aircraft operational parameters thereto as a raw stream of chronologically sequenced data elements. A data processor is connected to the avionics interface and a network interface, and is receptive to the aircraft operational parameters from the avionics interface. The data processor applies a variable filter that selectively passes a filtered data stream of aircraft operational parameters derived from the raw stream to a data storage device. The variable filter is defined by one or more filter parameters dynamically adjustable in response to changing conditions derived from the aircraft operational parameters. The filtered data stream is transmitted to the remote monitoring station.