dji Mavic pro User Manual page 24

Mavic Pro User Manual
Assisted Braking from Forward Vision System
Powered by the Forward Vision System, the aircraft is able to actively brake when obstacles are detected
in front. Forward and Downward Vision Systems work best when lighting is adequate and the obstacle is
clearly marked or textured. The aircraft must fly at no more than 22mph (36kph) to allow sufficient braking
distance.
The performance of the Forward and Downward Vision Systems are affected by the surface being
flown over. Ultrasonic sensors may not be able to accurately measure distances when operating
above sound-absorbing materials and the camera may not function correctly in suboptimal
environments. The aircraft will switch from P-mode to Atti mode automatically if neither GPS nor
Forward and Downward Vision Systems are available. Operate the aircraft with great caution in
the following situations:
Flying over monochrome surfaces (e.g. pure black, pure white, pure red, pure green).
Flying over a highly reflective surfaces.
Flying at high speeds of over 22mph (36kph) at 2 meters or over 11mph (18kph) 1 meter.
Flying over water or transparent surfaces.
Flying over moving surfaces or objects.
Flying in an area where the lighting changes frequently or drastically.
Flying over extremely dark (lux < 10) or bright (lux > 100,000) surfaces.
Flying over surfaces that can absorb sound waves (e.g. thick carpet).
Flying over surfaces without clear patterns or texture.
Flying over surfaces with identical repeating patterns or textures (e.g. tiling).
Flying over inclined surfaces that will deflect sound waves away from the aircraft.
Keep sensors clean at all times. Dirt or other debris may adversely affect their effectiveness.
The Downward Vision System is only effective when the aircraft is at altitudes of 0.3 to 13 meters.
Forward and Downward Vision Systems may not function properly when the aircraft is flying
over water.
The Forward and Downward Vision System may not be able to recognize patterns on the
ground in low light (less than 100lux).
Do not use other ultrasonic devices with a frequency of 40KHz when Forward and Downward
Vision Systems are in operation.
Keep animals away from the aircraft when the Downward Vision System is activated. The sonar
sensor emits high frequency sounds that are audible to some animals.
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