Ely324
lvl.4
Flight distance : 904888 ft
United States
Offline
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Jason Lane Posted at 2017-2-26 09:31
Was the wall painted one color, with no discernible texture? I haven't tested the forward OA on a large plain surface such as a wall, and I'd never really wondered how well it would work, but now that you've mentioned this, I am wondering if the uniform texture of the wall simply gave the forward sensors nothing to "see" as an obstacle. The forward OA system relies solely on the two vision sensors. There are no ultrasonics on the front like there are on the bottom. Could it be that the Mavic simply isn't capable of recognizing a large, plain-colored wall? It would be very ironic if that were the case.
I suppose it's also possible that even though you said it was bright and there was enough light for the OA system to function, the light may have still been sub-optimal, and not quite bright enough for the system to work as well as it should.
The wall has wall paper that comprises of two colors with large 3 feet stripes approximately, and has a texture within the color.
As for brightness, I was filming at ISO 400 with a shutter of 1/60th I believe. IMO it was bright in the area I was filming. If I was shooting at 1600 ISO I could understand, but at ISO 400 I would think there would be plenty of light for an obstacle avoidance sensor to work.
If these sensors are so finicky, they should limit the sensors to when they can work depending on light levels available to the camera and sensors. But the forward facing sensors were working as intended at the beginning of the flight as they were detecting objects and slowing the aircraft down.
If the system is just unreliable, then these drones shouldn't be advertised as being capable of avoiding obstacles. Flying and knowing that the drone will detect objects to avoid crashes in comparison to the drone is equipped with sensors that may help in avoiding obstacles is a big difference and would change how most people fly their drones and the video shots they try to achieve. |
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