dji MATRICE 4 Series - Landing Protection; DJI Airsense

• Make sure to use APAS when the downward vision system is available or the
GNSS signal is strong. APAS may not function properly when the aircraft is ying
over water or snow-covered areas.
• Be extra cautious when ying in extremely dark (<300 lux) or bright (>10,000 lux)
environments.
• Pay attention to DJI Pilot 2 and make sure APAS is working normally.
• APAS may not function properly when the aircraft is ying near ight limits or in
a GEO zone.
• When the lighting becomes insucient and the vision system is partially
unavailable, the aircraft will switch from bypassing obstacles to braking and
hovering. You need to center the control stick and then to continue controlling
the aircraft.
Landing Protection
If Obstacle Avoidance Action is set to Avoid or Brake, Landing Protection will be
activated when you push the throttle stick down to land the aircraft. Landing Protection is
enabled once the aircraft begins to land.
• If the ground is determined to be suitable for landing, the aircraft will land directly.
• If the ground is determined to be unsuitable for landing, the aircraft will hover when
the aircraft descends to a certain height above ground. Push down on the throttle
stick for at least ve seconds, and the aircraft will land without obstacle sensing.
4.12 DJI AirSense
Airplanes with an ADS-B transceiver will actively broadcast ight information including
locations, ight paths, speeds, and altitudes. DJI aircraft incorporated with the DJI
AirSense technology are capable of receiving ight information broadcast from ADS-B
transceivers that comply with 1090ES or UAT standards within a radius range of 10
kilometers. Based on the received ight information, DJI AirSense can analyze and obtain
the location, altitude, orientation, and velocity of the surrounding manned airplanes, and
compare such gures with the current position, altitude, orientation, and velocity of the
DJI aircraft to calculate in real time the potential risk of collision with the surrounding
manned airplanes. DJI AirSense will then display a warning message in DJI Pilot 2
according to the risk level.
DJI AirSense only issues warning messages on approaches by specic manned airplanes
under special circumstances. Please be aware that DJI AirSense has the following
limitations:
DJI Matrice 4 Series User Manual
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