Kilrah
Well-Known Member
Looks perfectly normal given the conditions - try it in daylight, there is should be rock steady.
HFMan is correct, pg 22 and 23 of the manual.According to the user manual, the Downward Vision System consists of BOTH the camera and sonar sensors. In low light, visual assistance is going to be marginal, especially in low light over a non-descript driveway. Downward Vision System is only used between .3 and 13 meters.
I'm pretty sure the sonar sensors are primarily for determining if the ground is safe to land on. For example if the sonar sounds bounce off on an angled platform, the sonar wouldn't get a response. The drone then knows it can't land there despite the VPS saying there is ground below it. Same goes for snow. From personal experience when I tried to land in snow, a thin layer of course, it wouldn't let me. The snow was likely scattering the sound waves, and not returning them as truly solid objects would.Although I am surprised it wasn't holding better vertical positioning... the sonar sensors should have been able to keep it a bit more steady. Perhaps without good correlating information from the cameras, the sonar sensors alone are not good enough on their own (or the slope of the driveway had an influence).
That's what a forum with experts are for. To do what DJI tech support can't.Ok guys, I flew the bird during the daytime at the same spot and noticed that the hovering is a lot better. Thanks
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