User manual
Table Of Contents
P4 Multispectral User Manual
22
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The 3D Infrared Sensing System is only active in Beginner mode* and Tripod mode*. Fly with caution.
The performance of your Vision System and Infrared Sensing System are aected by the surface
being own 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 A-mode automatically if neither vision sensors
nor ultrasonic sensors and Infrared Sensing System are available. Operate the aircraft with great
caution in the following situations:
a) Flying over monochrome surfaces (e.g. pure black, pure white, pure red, pure green).
b) Flying over a highly reective surfaces.
c) Flying at high speeds of over 31mph (50kph) at 2 meters or over 11mph (18kph) at 1 meter.
d) Flying over water or transparent surfaces.
e) Flying over moving surfaces or objects.
f) Flying in an area where the lighting changes frequently or drastically.
g) Flying over extremely dark (lux < 10) or bright (lux > 100,000) surfaces.
h) Flying over surfaces that can absorb sound waves (e.g. thick carpet).
i) Flying over surfaces without clear patterns or texture.
j) Flying over surfaces with identical repeating patterns or textures (e.g. tiling).
Assisted Braking from Obstacle Sensing
Powered by the Obstacle Sensing, the aircraft will now be able to actively brake when obstacles
are detected around the aircraft. Note that Obstacle Sensing function works best when lighting
is adequate and the obstacle is clearly marked or textured. The aircraft must y at no more than
31mph (50kph) to allow sucient braking distance.
Follow the steps below to use Vision Positioning:
1. Turn on the aircraft. The aircraft status indicator will ash green two times, which indicates the
Vision Positioning is ready.
2. Gently push the left stick up to lift o and the aircraft will hover in place.
* This mode will be supported later.
Using the sensors that are built into the Vision System, the aircraft can hover precisely even
without GNSS. The Downward Vision System works best when the aircraft is at altitudes of under
33 ft (10 m). Operate the aircraft with great caution when ying at high speeds at low altitudes
(under 0.5 m).