Holy Stone HS720G Instructions For Use Manual page 34

1. Fly fast at an altitude below 0.5m.
2. Fly over monochrome surfaces (like pure black, pure red, pure red and
pure green).
3. Fly over strong light reflective surfaces or surfaces prone to reflection.
4. Fly over water or transparent object surfaces.
5. Fly over moving object surfaces (such as crowds, swaying juggles and
glass).
6. Fly over an area where light changes dramatically and rapidly.
7. Fly over surfaces extremely dark (lux<10) or extremely bright (lux>
10,000).
8. Fly over surfaces without clear textures.
9. Fly over surfaces with highly repeating textures (small grid brick in the
same color).
10. Fly over surfaces that are tilting over 30 degrees (could not receive the
echo of the ultrasonic wave).
11. Flying speed should be controlled not to be too fast. When drone is 1
meter from the ground, the flying speed should not be over 5m/s. When
the drone is 2 meters against the ground, the flying speed should not be
over 10m/s.
・Keep sensors clean at all times.
・The vision system is only effective when the drone is within the altitude
range of 10 feet/3 meters.
・Make sure that the light is bright enough and the surface is with clear
textures so that the vision system can acquire the movement information
through recognizing the ground textures.
・The vision system may not function properly when the drone is flying
over water, low light ground and surfaces without clear patterns or
textures.
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