Toedles
Second Officer
Flight distance : 7676339 ft
New Zealand
Offline
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HereForTheBeer Posted at 1-9 17:08
the vision based system should in theory be more accurate/absolute as its actually measuring the distance with cameras/IR system that are pointing down on both these drones. the Baro/IMU based system is relative to take off location being zero.. it can vary as baro is measuring pressure of the atmosphere and the IMU is only measuring change in 6 degrees of direction similar to way your iPhone/Android measures your movements and knows your turned your phone a certain way.. same kinda tech(bit over simplified but same concept).. just relative.
and that person was me that your talking about, my VPS/IR system isn't best at measuring distance and i have to recalibrate it ever so often. because my for example have my drone to match my height, and my VPS thinking im 6.5 feet, i'm actually just under 6 foot. same thing hover so my camera is lined up with some work i just did on my home, thats little over 12 feet off the ground below it, for some reason VPS thinks its 8 feet up.. then calibrate my dorne using my laptop and do same tests and its more or less correct close enough. says im 5.8 feet tall in same test and the area i worked on is 12 feet up.. but give it time and the accuracy shifts.
Haha, it is you, so sorry, I confused the two replies up. Very informative information, I guess it also doesn’t help much being in Auckland, New Zealand as I can imagine the atmospheric pressures are probably all over the place. I will do those experiments tonight though, might be interesting. |
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