Visual Positioning System at Night

[FlyGuy8675309]

I fly at night a lot with my Mavic. Just recently the downward visual positioning system (VPS) is *intermittently* causing the Mavic to descend at a very slow rate. This JUST start happening after a couple months with it. Once I turn off the VPS it's fine.

I get that the VPS can't see well, if at all, at night. What I don't get is why this is just starting now and why it only happens intermittently. It's not a HUGE deal, but it is a pain. EDIT: I haven't updated the firmware so that's not why it just started up.

Anyone have any ideas or experience here?

 

[PT_Mavic]

Maybe try cleaning the camera lenses? Which firmware are you running?

 

[dewster]

Try turning off your landing protection switch. Just remember that your craft will not slow to a hover before landing so take it easy. Maybe your getting intermittent errors from your landing protection system causing slow descents.

 

[FlyGuy8675309]

Try turning off your landing protection switch. Just remember that your craft will not slow to a hover before landing so take it easy. Maybe your getting intermittent errors from your landing protection system causing slow descents.

Thanks for the tip, but is def. the VPS - that's the warning I get on and off. I just went out today and no problems so it's a nighttime thing. Just strange it never happened before. Anyway, I'll update if I figure it out. Thanks!

 

[gnirtS]

If you're daytime flying then reflective surfaces like water, snow, metal can confuse it.
At night the optical sensors wont work at all but that shouldnt affect the ultrasonic.