dirkclod
Well-Known Member
Well the front of the house was covered in stone work and the back and sides pretty much are covered in Ivy which is the effect we wanted.
Thanks though .
Don't Fly Near Clearview Credit Union w/Blue Roof
- Thread starter Chirp
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Thanks though .
HoozierDroneDaddy
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No one mentioned the possibility of the bank having a strong Wi-Fi. Possible interference from the Wi-Fi. When you go back, you might check with the manager to see if they had one on at the time of the incident.
That's because the OP reported magnetic interference, not comms interference. Wifi is not going to have any effect on the compass.
With compas interactions, magnetic interference will be induced the closer you get to the magnetic material. The impact of this interference varies inversely with the square of the distance.
Control GPS, and video information loss is different. Metals that are grounded, such as bridges, rebar based concrete etc act as walls for these communications. Also, vegetation will attenuate/block these signals based on the moisture content. All the DJI communications systems - enhanced WIFI, Ocusync, etc suffer from this, but to different degrees.
If the line between the controller and drone are blocked, no control or video will get through. In 3 seconds, if the GPS signals are OK, the drone will blindly do a RTH.
If the lines between the drone and the GPS satellites are blocked, the drone will shift into ATTI mode where the on board altimeters will take over, and the drone will maintain altitude. It will not be aware of the wind, and will drift freely wherever the wind is going.
All of this is the underlying physics, and can never be eliminated, only understood.
Control GPS, and video information loss is different. Metals that are grounded, such as bridges, rebar based concrete etc act as walls for these communications. Also, vegetation will attenuate/block these signals based on the moisture content. All the DJI communications systems - enhanced WIFI, Ocusync, etc suffer from this, but to different degrees.
If the line between the controller and drone are blocked, no control or video will get through. In 3 seconds, if the GPS signals are OK, the drone will blindly do a RTH.
If the lines between the drone and the GPS satellites are blocked, the drone will shift into ATTI mode where the on board altimeters will take over, and the drone will maintain altitude. It will not be aware of the wind, and will drift freely wherever the wind is going.
All of this is the underlying physics, and can never be eliminated, only understood.
RFaust
Well-Known Member
I've read many times that DJI never uses GPS for altitude calcs, only the baro pressure readings. I think I understand why.
It does get altitude from GPS, and logs those values, but it does not appear to be a primary data source for the FC.
Vilco
Well-Known Member
Exactly what I did for the roof of a firend's house, with the same kind of roof cover, flying both over and near to it for a good 20 minutes
dirkclod
Well-Known Member
Yeah I do it a lot with no issues, That bank most likely had not only the safe but lot's of other steel in it as it being a bank .
SkyDogII
Well-Known Member
sorry i know this is an old thread...
My M2Z went in the drink today... I was flying next to a steel bridge over the Los Angels River. "aircraft disconnected" appeared on the RC and the m2z decided to land where it was instead of trying to backtrack and recover the RC signal. I was maybe 20 feet below the bridge and 15 feet above the water when it went swimming. It was maybe 150 feet away from me max. There was no other warnings or issues before the m2z disconnected. Never went into atti mode or anything else just lost signal and went to land... Floated down the river about 300 yards and high-centered on a rock. i was able to retrieve it, but its toast... very disappointed, I've been practicing in atti mode for emergency issues.. Don't know why communications disconnected so suddenly like it did..
another notch on the experience belt.
skydog4
My M2Z went in the drink today... I was flying next to a steel bridge over the Los Angels River. "aircraft disconnected" appeared on the RC and the m2z decided to land where it was instead of trying to backtrack and recover the RC signal. I was maybe 20 feet below the bridge and 15 feet above the water when it went swimming. It was maybe 150 feet away from me max. There was no other warnings or issues before the m2z disconnected. Never went into atti mode or anything else just lost signal and went to land... Floated down the river about 300 yards and high-centered on a rock. i was able to retrieve it, but its toast... very disappointed, I've been practicing in atti mode for emergency issues.. Don't know why communications disconnected so suddenly like it did..
another notch on the experience belt.
skydog4
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