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Litchi mission - need help
193 17 2017-2-25 03:03:50
adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
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Hello Guys,

Recently I bought Litchi for DJI. I have created a mission, and today it was first time I was started it!

I attach my mission here in CSV and please help me.

Firstly I have started mission, dron take off, flies to 1 , 2nd checkpoint. In meantime I tried to move gimbal up/down. Of course, after 500m distance I have lost connection (downlink and RC went to RED). My heart was in very stong pulse

But, everytihing went fine, drone has came back in few minutes with accomplishing mission.

Problems were also occured:
- in some of checkpoints Litchi has to StayFor 5sec, TakePhoto, StayFor 5sec. (in litchi settings, autorecording was ON). BUT after looking at footage, video is ALL THE TIME ON! Drone has stopped for 5 sec, then he should take photo. But no photos in SD card. Then he stays another 5sec and flies to next checkpoint. Where could be mistake?

- Next problem is gimbal level. Please check on mission, mostly I used Interpolate for checkpoints, but on Footage I see that drone has all the time same gimbal level. Maybe its because I firstly try it to go up/down ?

- Other problem occures when mission finish time has came, and drone was around 60 meters from me. I was able to see it, RC has came to GREEN but Litchi still says NO SIGNAL and I had no vision on tablet. RC funcionallity has been ok! So I turned off and on RC. Then Litchi has connected again.

- Another problem is with HealthyDrones. I have uploaded flight LOG, and here is link http://healthydrones.com/main?share=DMCMAe
Please compare HealthyDrones flight map, with mission map. Seems that in LOG there is almost half of flight visible! On footage I see that drone has came across whole mission!

Przystań -Delfin-.csv.zip

1.35 KB, Down times: 0

CSV zipped

2017-2-25 03:03:50
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Mark The Droner
Intern Pilot
United States
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What are you flying?
2017-2-25 03:27:41
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adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
Offline


Phantom 4 (nonPro)
2017-2-25 03:27:01
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Mark The Droner
Intern Pilot
United States
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You might consider attaching a tracker so that when you lose signal and something unfortunate happens, you can find your AC.

Sounds lke your app crashed or the FPV crashed during or towards the end of the mission.  You don't need your app to fly, so you still had control with the sticks.  You could have landed it without the app.  

Hopefully somebody else can help you with your other questions.  
2017-2-25 03:50:16
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adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
Offline

Sure, I know about GPS trackers. I managed to find "issue" of half flight shown in HealthyDrones. At peak point (this, where HealthyDrones does not show rest of flight) was moment where RC lost downlink and signal with AC (exactly 498m from home point). This might be an issue? I thought that flight log is stored in aircraft...
2017-2-25 03:56:20
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sdevan45
Hobbyist
Flight distance : 1979
United States
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If you have curved turns on, Litchi will not take photos.  Check that setting.
2017-2-25 04:42:19
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adrian8891
Student Pilot
Flight distance : 58775
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I dont have curved turns. Thats why I attached csv so You can import this mission to Your litchi hub. What I rememberded is that my flight was made in "P" Mode on controller. The "F" Mode didnt shown GPS assistance. It shown only "ATTI" . On P Mode it was "P-GPS"
2017-2-25 05:28:34
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adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
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anyone? some ideas?
2017-2-25 14:20:04
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Geebax
Captain
Australia
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I can't say much about the other issues you mentioned, but this one:

'Problems were also occured:
- in some of checkpoints Litchi has to StayFor 5sec, TakePhoto, StayFor 5sec. (in litchi settings, autorecording was ON). BUT after looking at footage, video is ALL THE TIME ON! Drone has stopped for 5 sec, then he should take photo. But no photos in SD card. Then he stays another 5sec and flies to next checkpoint. Where could be mistake? "


If you have autorecording on, and the camera is shooting video, then it cannot take still photographs.
2017-2-25 14:49:19
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adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
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Geebax Posted at 2017-2-25 14:49
I can't say much about the other issues you mentioned, but this one:

'Problems were also occured:

Ok, so how to resolve this?

On start of mission manually start record? And on each waypoint start with StopRecording and end with StartRecording?
2017-2-26 04:10:09
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Airwolf13
Hobbyist
Flight distance : 5595
United States
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How interesting  I see people who use Litchi have similar issues with their flights that others who use the  normal DJI app have.  So why use Litchi?  I don't get it
2017-2-26 06:15:50
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adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
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Airwolf13 Posted at 2017-2-26 06:15
How interesting  I see people who use Litchi have similar issues with their flights that others who use the  normal DJI app have.  So why use Litchi?  I don't get it

Of what issues are You talking about? As far as I know, DJI GO doesn't have autonomus flight and autorecording option ;)
2017-2-26 07:24:58
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MassDrone
Hobbyist
Flight distance : 31918
United States
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To SkyCin: You can program a Litchi mission to control the 3D location of the drone, the direction it's pointed, and the gimbal angle. However, once the drone is disconnected from the RC unit, it only 'remembers' the flight path and the angle to point the drone. In order for a mission to control the gimbal angle, it must remain connected to the RC. In practice, if you plan a mission that will disconnect from the RC, make sure your gimbal angle is where you want it to stay, because it won't change after the disconnect happens.
2017-2-26 10:37:54
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adrian8891
Student Pilot
Flight distance : 58775
Luxembourg
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MassDrone Posted at 2017-2-26 10:37
To SkyCin: You can program a Litchi mission to control the 3D location of the drone, the direction it's pointed, and the gimbal angle. However, once the drone is disconnected from the RC unit, it only 'remembers' the flight path and the angle to point the drone. In order for a mission to control the gimbal angle, it must remain connected to the RC. In practice, if you plan a mission that will disconnect from the RC, make sure your gimbal angle is where you want it to stay, because it won't change after the disconnect happens.

Ok, so another problem solved! Thank You
2017-2-26 10:43:10
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Geebax
Captain
Australia
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adrian8891 Posted at 2017-2-26 04:10
Ok, so how to resolve this?

On start of mission manually start record? And on each waypoint start with StopRecording and end with StartRecording?

Rather than faffing about with all that, I think I would just use a mission to either record video or take photos. Mixing the two sounds too complicated to me.
2017-2-26 13:38:10
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EdM
Student Pilot
United States
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This is based on memory because I typically don't mix mission flights.    At a waypoint you will need to stop recording, make your camera adjustments, shoot the pic, etc and then you will need to make any needed camera adjustments and start recording again.  The problem is there is a limit on the number of instructions you can issue at each waypoint.   So you may have to create 2 waypoints close together and divide the instructions between them.
2017-2-26 22:04:20
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RicknCovington
Hobbyist
Flight distance : 52
United States
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adrian8891 Posted at 2017-2-26 07:24
Of what issues are You talking about? As far as I know, DJI GO doesn't have autonomus flight and autorecording option ;)

DJI Ground Station Pro, which is a free download, will do autonomous flights (missions), but presently only works with iOS,and not Android OS.
2017-2-27 16:32:35
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adrian8891
Student Pilot
Flight distance : 58775
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RicknCovington Posted at 2017-2-27 16:32
DJI Ground Station Pro, which is a free download, will do autonomous flights (missions), but presently only works with iOS,and not Android OS.

Im not any fan of iOS, thats why I require android versions. Next thing is that DJI app has always something wrong - sometimes with donwstream, sometimes with crashing in middle of flight etc.
2017-2-28 10:31:59
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