초록 ▼

Flight parameter data is real time sampled in successive sample frames and temporarily stored in memory for one or more sample frame intervals, the stored sample values are examined to detect extremes in parameter values with time, periodic ones of the temporarily stored sample frames are permanentl

Flight parameter data is real time sampled in successive sample frames and temporarily stored in memory for one or more sample frame intervals, the stored sample values are examined to detect extremes in parameter values with time, periodic ones of the temporarily stored sample frames are permanently stored in memory at fixed frame intervals notwithstanding the presence or absence of extreme values in the sample set data, sampled frames intermediate to the fixed frames are stored only in the presence of extreme sample values amoung selected ones of the sensed flight parameters.

대표청구항 ▼

Apparatus for recording the periodic real time sample values of a set of aircraft flight parameter signals associated with aerodynamic loading of an aircraft during aircraft maneuver, comprising: recording means, for recording in real time in a non-volatile medium, fixed sample signals and variable

Apparatus for recording the periodic real time sample values of a set of aircraft flight parameter signals associated with aerodynamic loading of an aircraft during aircraft maneuver, comprising: recording means, for recording in real time in a non-volatile medium, fixed sample signals and variable sample signals; and signal processing means, including program memory means for storing a program and data memory means for storing the real time sample value signals, said program memory including an algorithm defining a signal compression routine to be performed by said signal processing means on the sampled value signals, said processing means: monitoring less than all of the set of samples value signals to detect the occurrence of an actual value of any of said monitored sampled value signals which exceed a corresponding reference value therefor, and for providing a maneuver signal in the presence of such occurrence, storing in said data memory means all the real time sample value signals of the whole set of parameter signals received in a fixed real time interval in the presence of said maneuver signal, selecting at least one set of said real time sample value signals stored in said data memory means in each fixed interval as said fixed sample signals for presentation to said recording means, and detecting those sets of real time sample signals intermediate to said selected fixed sample signals having values indicative of an extreme deviation from a selected threshold value, as said variable sample signals for presentation to said recording means, whereby said fixed sample signals and said variable sample signals are stored in said recording means, in combination, to provide the locus of the real time waveform of the flight parameter signals for subsequent real time analysis.