Dynamic Alert Prioritization for Aircraft Crew Workload Reduction
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Solution Overview
Problem
Current flight alert systems generate unnecessary alerts due to static criticality determination, leading to increased workload and stress for pilots during abnormal situations, especially in complex systems with multiple interconnections, where the criticality of alerts is not adapted to the current flight context.
Innovation Solution
A method for dynamically managing alert restitution by obtaining a list of operational capacities required for the current mission, modifying and filtering alerts based on their relevance, using a database to assess the impact of system malfunctions and applying a degradation law to adjust alert levels, ensuring only critical alerts are presented to the crew.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static criticality determination is used during system design, then all possible mission scenarios are covered including worst-case scenarios, but unnecessary alerts are generated increasing pilot workload and stress
Solution Approach 1:
The patent implements dynamic alert criticality determination that adapts to the current flight context and mission phase. Instead of using fixed static criticality levels established during design, the system continuously evaluates whether an alert is relevant to the current mission objectives and flight conditions, dynamically adjusting which alerts are presented to the pilot based on real-time operational context
Solution Approach 2:
The system changes the parameter of alert criticality from a fixed static value to a dynamic value that varies based on current mission context. The patent introduces context-dependent parameters such as current flight phase, active mission objectives, and system dependencies to modulate alert presentation, transforming the alert system from a static to a context-aware dynamic presentation
2Reliability
If comprehensive surveillance of all systems is implemented, then all malfunctions are detected, but the mass of data overwhelms the crew making it difficult to prioritize critical issues
Solution Approach 1:
The patent extracts only the relevant alerts from the comprehensive surveillance data based on current mission context. The system filters out non-essential alerts that do not impact the current mission objectives, presenting only the critical subset of information that the pilot needs to handle the current flight situation effectively
Solution Approach 2:
The patent segments the comprehensive surveillance data into mission-relevant and non-relevant portions. By dividing the total alert set based on current operational context, the system presents segmented, prioritized information that helps the crew focus on critical issues while maintaining awareness of system status
3Reliability
If alert criticality is determined by worst-case scenario analysis, then flight safety is maximized, but non-essential alerts increase crew stress during normal operations
Solution Approach 1:
The patent changes the alert presentation parameter from fixed worst-case criticality to context-dependent criticality. The system adjusts alert prominence and presentation based on whether the current flight context matches the worst-case scenario conditions, reducing stress during normal operations while maintaining safety during actual critical situations
Data Source
AI summary
The invention relates to a method for controlling the restitution of alert(s) and/or of system(s) reconfiguration procedure(s), including the surveillance of device(s) of a vehicle and the determination of alert(s) and/or of associated reconfiguration procedure(s) to be restituted for the crew, the vehicle operating according to a mission carried out by using at least one operational capacity,and further including, for a current mission:obtaining a list of operational capacities required by said current mission;from said required operational capacities and at least one piece of information from an accessible database, controlling the restitution of alert(s) and/or of system(s) reconfiguration procedure(s) by:modifying the associated level of alert(s) and/or of procedure(s), and sequencing the restitution of alert(s) and/or of procedure(s) based on said level, and/orfiltering said alert(s) and/or reconfiguration procedure(s) before restitution.