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New Drone Fell Out Of The Sky
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1461 59 9-12 03:18
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Pleomax
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JJB* Posted at 9-13 04:05
Airdata uses their own add-ons to to the log, those 2 yellow marked messages are not in the log.
I do the same in my FRAP logic/algorithm

Hi JJB*

Agree about airdata reporting but how do you explain high pitch and roll values if not collision.


9-13 04:20
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Pleomax
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JJB* Posted at 9-13 04:05
Airdata uses their own add-ons to to the log, those 2 yellow marked messages are not in the log.
I do the same in my FRAP logic/algorithm

9-13 04:24
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Bunny Virk
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Hey,
The video is 4-5 mins long that's why I  didn't upload the whole thing and just the part where the issue occurred. Here is the full video if you want.

https://youtu.be/MRLgM705ozo

Thanks
9-13 04:31
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LoveYou
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Bashy say:
...it sounds like a typical magnetic interference issue, you turned it on near something that caused magnetic interference, be it metal fencing, steel grates, the car, rebar in concrete and so on...

The problem is here satellites internet interference issue.



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9-13 05:08
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JJB*
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Pleomax Posted at 9-13 04:20
Hi JJB*

Agree about airdata reporting but how do you explain high pitch and roll values if not collision.

Hi,

If one or more motor fails....than drone will get high pitch and or roll values.

cheers
JJB

9-13 05:31
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JJB*
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Bunny Virk Posted at 9-13 04:31
Hey,
The video is 4-5 mins long that's why I  didn't upload the whole thing and just the part where the issue occurred. Here is the full video if you want.

Hi,

Video stopped before the drone falls down with high pitch and roll values.
Seeing the RC inputs video is stopped at 4m23s in flight.

Drone attitude changes (impact in air?)  at 4m29, so what happend in those 6 seconds?

cheers
JJB
9-13 05:38
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JJB*
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LoveYou Posted at 9-13 05:08
Bashy say:
...it sounds like a typical magnetic interference issue, you turned it on near something that caused magnetic interference, be it metal fencing, steel grates, the car, rebar in concrete and so on...

Magnetic interference in air to a drone is not verly likely, and if  than it will not cause a motor errror.

Same for satellites internet interference (uh, what is that) will not make a drone go wild in high pitch and roll angles.

cheers
JJB
9-13 05:42
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Bunny Virk
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LoveYou Posted at 9-13 05:08
Bashy say:
...it sounds like a typical magnetic interference issue, you turned it on near something that caused magnetic interference, be it metal fencing, steel grates, the car, rebar in concrete and so on...

I believe satellite can cause image relay interference and delay or disrupt the video relay to the controller but the motor getting blocked and the drone rolling over won't be caused by it.
9-13 06:56
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Bunny Virk
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As I mentioned earlier I saw it with my own eyes just going out control and crashing like an airplane engine failure in movies.
9-13 06:56
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Bashy
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The video normally stops when it crashes, this one makes no sense, if power dropped then would it even save the video properly?

RE Me thinking it was compass originally, i thought he mentioned compass in the 1st post, it was about 3:30am here, that's my excuse an I'm sticking to it not to mention that i had crossed it out, as for satellite, they are receiving not transmitting, so highly unlikely that was the issue.

The way that it veers to the left would make me think of magnetic interference, but that's normally not long after take-off, when it leaves the field that was picked up during the initialization, not in the air.
The veering is a bit like ATTI mode but there's no mention of that either, so the next obvious is that the motor was quickly slowing down hence the veering, but we do not see the crash, although i don't think that is important now, so, mechanical or so overheating occurred perhaps, this caused. Tough one, would like to know what DJI says?

It looks like you need to go back to Vietnam and send it in from there, its crazy, it shouldn't matter where it comes from. What should matter is where you bought it. It was through official channels, the DJI website. Youre going to have to jump through some hoops...
9-13 07:01
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Bunny Virk
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I am just hoping for an analysis from DJI so they can let me know what actually went wrong so I don't waste money going all the way to Veitnam to just be told that it was not hardware malfunction and we can only provide repairs at a certain cost and not a replacement. Vietnam trip alone would cost me around $200-300.
9-13 08:04
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LoveYou
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Bashy Posted at 9-13 07:01
The video normally stops when it crashes, this one makes no sense, if power dropped then would it even save the video properly?

RE Me thinking it was compass originally, i thought he mentioned compass in the 1st post, it was about 3:30am here, that's my excuse an I'm sticking to it  not to mention that i had crossed it out, as for satellite, they are receiving not transmitting, so highly unlikely that was the issue.

This antenna is for satellite  internet receiving and transmitting data. Sorry for my English is no good.

9-13 10:42
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Bunny Virk
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Hey
It's just a simple satellite tv dish, i think it won't make a drone switch off a motor and roll over. At max it could interfere with data relay for a bit and/or  cut video transmission to rc or delay it. It still does't explain motor obstruction.
9-13 10:57
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Bashy
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Bunny Virk Posted at 9-13 08:04
I am just hoping for an analysis from DJI so they can let me know what actually went wrong so I don't waste money going all the way to Veitnam to just be told that it was not hardware malfunction and we can only provide repairs at a certain cost and not a replacement. Vietnam trip alone would cost me around $200-300.

Thing is, DJI's data analysis is part of the warranty and would need to be part of a claim. This is probably the issue, you could pay the $60 for the analysis or whatever the cost is, I've forgot now.

Or, you could hit them with the information you have gathered from this thread, i.e. motor seizing up causing the drone to move laterally and then dropping from the sky.

This is why it always pays to get independent flightlog analysis from either Labrodes or JJB*, never take my word as gospel though as i am still learning to read them properly lol.

So if you were stuck with another journey, you have some ammo (knowledge).

Do you have a safe address in Vietnam for the return address for when DJI sends it back to you? What i mean is, i don't think you have to be physically in Vietnam to send it in to them as long as they have a physical address in Vietnam to send it back to you. I am not 100% positive about that but I cannot see why from whence came should make any difference.
9-13 17:33
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Bunny Virk
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Bashy Posted at 9-13 17:33
Thing is, DJI's data analysis is part of the warranty and would need to be part of a claim. This is probably the issue, you could pay the $60 for the analysis or whatever the cost is, I've forgot now.

Or, you could hit them with the information you have gathered from this thread, i.e. motor seizing up causing the drone to move laterally and then dropping from the sky.

I have some friends living in Vietnam so i can always get it delivered back to their address, that won't be a problem. Is the analysis included in the warranty as it just a month old drone or does it have to be paid separately and will they be doing it online or only after receiving the drone at their facility . Anyways everything depends on when and how they reply in the next mail.
9-13 20:59
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Bashy
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Bunny Virk Posted at 9-13 20:59
I have some friends living in Vietnam so i can always get it delivered back to their address, that won't be a problem. Is the analysis included in the warranty as it just a month old drone or does it have to be paid separately and will they be doing it online or only after receiving the drone at their facility . Anyways everything depends on when and how they reply in the next mail.

It should be included in the warranty, i spoke about the price only because they are saying no warranty for India.
9-13 21:10
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Bunny Virk
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DJI being totally unsupportive here
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9-14 06:04
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Bunny Virk
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Maybe I should start another support ticket stating my country as Vietnam .
9-14 06:06
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Bashy
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Bunny Virk Posted at 9-14 06:06
Maybe I should start another support ticket stating my country as Vietnam .

Dont say it, just do what you think is right ;)
9-14 07:33
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Bunny Virk Posted at 9-12 05:42
No actually the drone has been bought from a DJI store in Ho Chi Minh city in Vietnam, so if there is a replacement issue i have plans to travel to the region again anyways. Just want an update from the company on how to go forward with this.

Hello, Sorry for the late response. If the unit you purchased is from a DJI authorized seller in Vietnam. DJI does not currently provide an international warranty. You are suggested to contact the reseller to seek further assistance on this matter. Thank you for your cooperation and support.
9-15 05:28
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