Unmanned aerial vehicle relative height redundancy determination method and system

Abstract

The application discloses a kind of unmanned aerial vehicle relative height redundancy determination method and system, comprising: before unmanned aerial vehicle takes off, obtaining initial airborne barometric altimeter height H ab0 And initial ground barometric altimeter height H gd0 ; In the process of unmanned aerial vehicle flight, the differential satellite height H df0 Of runway, current unmanned aerial vehicle differential satellite height H dfr , current airborne barometric altimeter height H abr And current ground barometric altimeter height H gdr ; According to current unmanned aerial vehicle differential satellite height H dfr And the differential satellite height H df0 Of runway, determine current unmanned aerial vehicle satellite relative height, and simultaneously determine current unmanned aerial vehicle flight barometric relative height and current unmanned aerial vehicle flight calibration barometric relative height;Calculate the difference of current unmanned aerial vehicle flight calibration barometric relative height and each preset flight barometric relative height;When the absolute value of difference is less than preset threshold, relative height mapping table is constructed.The application uses relative height real-time control, guarantees the safety and accuracy of unmanned aerial vehicle take-off and landing.

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