Flight String Fatigue Evaluation Using Quantitative Index System
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Solution Overview
Problem
Current methods for evaluating flight string fatigue in civil aviation rely heavily on biomathematical models that cannot assess fatigue until pilot allocation is complete, and lack objective tools for considering complex fatigue factors, leading to unbalanced distribution and safety risks.
Innovation Solution
A method and system for evaluating flight string fatigue using a comprehensive index system and quantitative calculation model that considers multiple influencing factors, including duty duration, start and end times, take-off and landing times, and workload, to objectively assess and balance fatigue levels across flight strings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If biomathematical models are used to evaluate pilot fatigue, then fatigue prediction can be performed, but the evaluation cannot be conducted until pilot allocation is complete and cannot assess flight string fatigue in advance
Solution Approach 1:
The patent applies preliminary action by developing an evaluation method that can assess flight string fatigue before pilot allocation is completed. The method calculates fatigue grades based on flight string characteristics (duty duration, rest time, flight types) in advance, allowing scheduling personnel to make informed allocation decisions before the actual pilot assignment occurs.
2Productivity
If flight string formulation follows only time-related restrictions, then scheduling efficiency is improved, but fatigue evaluation becomes subjective and unbalanced due to lack of objective tools
Solution Approach 1:
The patent applies parameter changes by transforming the fatigue evaluation from a subjective qualitative assessment to an objective quantitative measurement. It introduces specific measurable parameters such as duty duration, rest time between flights, flight type classifications, and calculates fatigue grades using standardized formulas, enabling precise and objective evaluation of flight string fatigue levels.
3Stability of the object's composition
If comprehensive fatigue factors are considered in flight string allocation, then fatigue distribution balance is improved, but evaluation complexity increases due to lack of standardized tools
Solution Approach 1:
The patent applies segmentation by dividing the complex fatigue evaluation into distinct, manageable components. It segments the evaluation into separate factors such as duty duration assessment, rest time calculation, flight type classification, and fatigue grade determination. Each segment can be evaluated independently using standardized parameters, making the overall complex evaluation system more structured and manageable.
Data Source
AI summary
The disclosure discloses a method and a system for evaluating a flight string fatigue grade based on task information; the method includes: collecting task information of a flight string, and extracting first factors influencing a flight string fatigue degree based on the task information; constructing an index evaluation system based on the first factors, and calculating a weight coefficient of each of the first factors; carrying out a segment processing on the task information to obtain duty period segments; carrying out a quantitative characterization on the each of the first factors to obtain factor intensities of the duty period segments; calculating first fatigue values of the duty period segments based on the weight coefficients and the factor intensities; calculating a second fatigue value of the whole flight string based on the first fatigue values; and determining a flight string fatigue grade based on the second fatigue value.