Flight Data Recorder Scripting for Real-Time Alerts and Data Streaming
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Solution Overview
Problem
Flight data recorders (FDRs) and Cockpit Voice and Data Recorders (CVDRs) currently store data without processing it, limiting real-time operational insights and requiring post-flight analysis, and there is a need for real-time data utilization and automated alerts.
Innovation Solution
Implementing a scripting engine within the FDR to analyze flight data, generate triggers, and initiate automated downloads to external devices for real-time monitoring and data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If FDR stores data without processing, then data storage capacity is maintained, but real-time operational insights are lost
Solution Approach 1:
The system performs preliminary processing of flight data by evaluating parameters against predefined thresholds during flight operations. The scripting engine continuously monitors flight parameters and pre-identifies exception conditions, preparing alert information before actual events occur. This allows real-time operational insights to be generated without requiring complex post-flight analysis.
Solution Approach 2:
The FDR system serves itself by automatically monitoring its own recorded data and generating alerts when exception conditions are detected. The scripting engine within the FDR autonomously evaluates flight parameters and triggers alerts without requiring external processing systems, enabling the recorder to provide real-time operational insights while maintaining relatively simple architecture.
2Reliability
If FDR processes data in real-time, then operational safety is enhanced, but energy consumption increases
Solution Approach 1:
The system applies different processing intensities to different data parameters based on their importance. Critical safety parameters are continuously monitored with high processing intensity, while less critical parameters are evaluated at lower intensities or only when thresholds are approached. This selective processing approach enhances operational safety for critical functions while minimizing overall energy consumption.
Solution Approach 2:
The scripting engine evaluates flight parameters at periodic intervals rather than continuously processing all data streams. Exception conditions are checked at defined sampling rates, and alert generation occurs periodically when thresholds are exceeded. This periodic evaluation maintains operational safety monitoring while significantly reducing energy consumption compared to continuous processing.
3Loss of time
If automated download is implemented, then data utilization timeliness is improved, but device complexity increases
Solution Approach 1:
The automated download functionality is merged with the existing FDR architecture by integrating the scripting engine and alert generation capabilities into the recorder unit. The same hardware platform that stores flight data is also used to process and transmit alerts, eliminating the need for separate dedicated download devices and reducing overall system complexity while improving data utilization timeliness.
Solution Approach 2:
The FDR system is designed to perform multiple functions using the same core components. The scripting engine both monitors flight parameters for safety alerts and manages the automated download of relevant data to external systems. This multi-functionality approach enables timely data utilization through automated download without requiring separate dedicated systems, thereby limiting the increase in device complexity.
Data Source
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AI summary
A flight data recorder (FDR) may include a script engine configured to run an algorithm in order to obtain, analyze and use FDR and Cockpit Voice and Data Recorder (CVDR) data for non-Technical Standard Orders (TSO) applications. The script engine may be configured, by the algorithm, to analyze flight data received by the FDR and use the flight data to output a trigger via an Ethernet port or an ARINC 429 output. The script engine may also analyze the flight data and stream at least a portion of the flight data via the Ethernet port or the ARINC port.