P4P obstacle avoidance

ppdrone · Nov 30, 2016

....does it also work in darkness at night?
does anyone know?
thanks
p

msinger · Nov 30, 2016

No. The Phantom manual covers other scenarios where it does not work well either.

Limp Gimble · Nov 30, 2016

That's a surprise msinger, you would think it was Infared sonar or whatever night vision is using. I bet it starts using that protocol soon.

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Meta4 · Nov 30, 2016

KCBadger said:
That's a surprise msinger, you would think it was Infared sonar or whatever night vision is using. I bet it starts using that protocol soon.

The forward and back sensors are visual.

Limp Gimble · Nov 30, 2016

Meta4 said:
The forward and back sensors are visual.

I understand that, but if it was Infared or sonar etc. it would eliminate false positives of visual effects. I mean bats use it I. The dark.

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Meta4 · Nov 30, 2016

KCBadger said:
I understand that, but if it was Infared or sonar etc. it would eliminate false positives of visual effects. I mean bats use it I. The dark.

The front and back sensors are visual and have a useful range of 30 metres.
For the infrared side sensors it's 7 metres.
Every technology has it's limits but DJI is right at the cutting edge and stretching the limits as much as they can.
ps. bats use ultrasonic sonar

Limp Gimble · Nov 30, 2016

Meta4 said:
The front and back sensors are visual and have a useful range of 30 metres.
For the infrared side sensors it's 7 metres.
Every technology has it's limits but DJI is right at the cutting edge and stretching the limits as much as they can.
ps. bats use ultrasonic sonar

Interesting, a bats sonar can detect a forward object up to 60+ meters, time for DJI to rethink its oa system.

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azgeek · Jan 15, 2017

I was doing some low altitude (3 - 5 foot AGL) flying in my driveway one evening last week and verified that the visual sensors do not function in really low light wheres the side infrared sensors were working just fine.

F3honda4me · Jan 15, 2017

KCBadger said:
Interesting, a bats sonar can detect a forward object up to 60+ meters, time for DJI to rethink its oa system.

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They have the best OA system on the market. It takes time to get technology to the point that it works like a live animal's. And at a reasonable cost.

If you don't like it, don't buy it.

smiller · Jan 15, 2017

I was out flying today and I noticed that the side (infrared) sensor bars were not appearing at the sides of the display as they normally do in Tripod mode. It was a very bright day and I note that the DJI manual says that the infrared system does not work in dark or excessively bright environments... I wonder if they were disabled because of excessive ambient brightness?

Vaneik · Jan 15, 2017

KCBadger said:
Interesting, a bats sonar can detect a forward object up to 60+ meters, time for DJI to rethink its oa system.

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Bats 60 meters? Nope

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Liveddica · Jan 16, 2017

KCBadger said:
Interesting, a bats sonar can detect a forward object up to 60+ meters, time for DJI to rethink its oa system.

If you are lucky enough to find these said bats, I'd catch them, and super glue their asses to the sides of your Phantom, Presto...instant night time OA sensors. You'll be the envy of your friends!........and also get fined considerably, but hey......bats!

Hendo · Jan 16, 2017

Next we will have friggin sharks with laser beams

$gambino$ · Jan 16, 2017

smiller said:
I was out flying today and I noticed that the side (infrared) sensor bars were not appearing at the sides of the display as they normally do in Tripod mode. It was a very bright day and I note that the DJI manual says that the infrared system does not work in dark or excessively bright environments... I wonder if they were disabled because of excessive ambient brightness?

I'm pretty sure they only work in beginner mode and tripod and I also got my infrared sensors to work pretty good in the dark they are the only sensors that will work okay in the dark

GavinW · Jan 16, 2017

Please understand that you cannt rely on the OA system at any time. I'm lucky to have gotten it back but I've got my P4P stuck in a tree already while it was in tripod mode

smiller · Jan 16, 2017

$gambino$ said:
I'm pretty sure they only work in beginner mode and tripod

I know, as I said I was in Tripod Mode. Not sure why the infrared/side sensor display didn't appear as it usually does when in Tripod mode.

Chesapeake · Jan 16, 2017

GavinW said:
Please understand that you cannt rely on the OA system at any time. I'm lucky to have gotten it back but I've got my P4P stuck in a tree already while it was in tripod mode

I agree with that analogy. From what I've read and seen on videos, depending on these features as your automatic co piolet is a false sense of security. Maintaining manual control at all times is the safest way to fly. You never know when something isn't going to work. Even then, there's no guarantee to a perfect flight.