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Process for developing a statistical model to determine the workload of an aircraft pilot, model derived therefrom, apparatus for the embodiment of the said process and applications of the model
| Details |
Inventors: Blomberg, Richard D.; Fouillot, Jean-Pierre; Speyer, Jean-Jacques;
Assignee: Airbus Industrie (Blagnac, FR)
Primary Examiner: Gruber; Felix D.
Assistant Examiner:
Attorney, Agent or Firm: Kenyon & Kenyon
A process for developing a statistical model to forecast the workload of an aircraft pilot (20), in particular that of a commercial airline pilot, as a function of objective flight parameters, wherein, during the course of at least one flight (real or simulated) of the aircraft, under defined flying conditions and flight conditions and stages which constitute the flight parameters, the aircraft pilot is asked to provide a rating of his workload according to a predefined scale, wherein this rating is logged at the same time as the corresponding flight parameters, and, simultaneously, the value of the significant data of the said parameters is measured, wherein, finally, a statistical correlation is established between the workload rating values on the one part and the aforesaid data and flight parameters on the other part. Applicable to certification and development of an aircraft and training and skills development, to performance supervision and monitoring of an aircraft pilot's extent of adaptation to a new aircraft. |
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DETAILED DESCRIPTION We claim: 1.
A method for producing the statistical model for predicting a workload that an aircraft places on a pilot during actual or simulated flight as a function of predetermined objective flight parameters, the method comprising the steps of: (a) defining a set of predetermined objective flight parameters corresponding to different preselected aircraft flight data, flight conditions of the aircraft, flying conditions, and flight stages; (b) generating a signal prompting the pilot during n actual or simulated flight of the aircraft to rate his current workload according to a predefined scale; (c) logging the workload rating made by the pilot in response to the prompting signal; (d) measuring values of significant data of a plurality of applicable flight parameters when the prompting signal for a workload rating is generated; (e) logging the measured values of the applicable flight parameters simultaneously with step (c); (f) repeating steps (b) through (e) at least once in each of the preselected flight stages; (g) correlating the workload ratings and flight parameters from step (f) to produce a statistical model of the workload on the pilot as a function of the flight parameters.
2.
The process of claim 1 wherein step (g) comprises entering each workload rating and the measured values of the associated flight parameters obtained in step (f) into a relationship of the type: Yi=A1 Zi1+A2 Xi2+.
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+An Xin+B1+B2+.
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+Bk+.
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+Bm+C, wherein: Yi is a variable related to a pilot workload PRi for a particular set of flight parameters; Xij are available representing the significant data of a first set of flight parameters; Aj are coefficients of multiplication; Bk are coefficients of addition denoting a second set of flight parameters; and C is an interception coefficient, and then applying statistical analysis methods to the entered data.
3.
The process of claim 2 wherein the first set of flight parameters represented by variables Xij are flight data relating to the aircraft itself, and the second set of flight parameters corresponding to coefficients Bk are the concurrent aircraft flight conditions, the flying conditions, and the flight stage
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