Hello again folks!
I've been using several more times since my last post the 3DSurvey Pilot App to fly my missions at work. Sadly lately, I would say the last 4-5 missions I've been experiencing a weird behavior with the app and the drone.
The context;I am using a DJI Phantom 4 Pro V2.0 for flying and the 3DSurvey Pilot App is installed in a Moto G8 Power with Android version 11.
I have imported my polygons from a kml generated first from QGis, then imported to Google Earth, saved again as KML and then imported to 3DSurvey Pilot (check here;
https://forum.3dsurvey.si/index.php?topic=35.0).
As for this last step I've done it with several projects and currently I have 8 projects stored on the phone with the corresponding settings and polygon ready to fly.
I have deleted the default launching app for the phone whenever I connect the remote control of the drone to the phone so I can tell the phone manually what application to open every time I connect it to the remote control. It asks me for allowance to run the app and connect it to a DJI Service in android, I always give it permission.
The problem(s);When I am about to fly I first open the DJI GO 4 app in order to check drone status, do a test flight and configure the necessary settings for the camera to work as I need to. Then I land the drone and close the DJI GO 4 app. I also make sure that it doesn't keep running in the background of the phone.
I then open 3DSurvey Pilot and search for my stored project. I make sure the settings are the ones I configured, make sure drone says connected, and press play. Now problems start;
First problem I found today; I pressed play to send the information to the drone, first try didn't show anything so I backed, tried again, managed to start passing check-ups, all went well but the icon for mission uploading to the drone kept being in red. I tried a couple of more times with no avail. The settings for the flight are as follow;
Path Angle; 91º
Front and side overlap; 80%
Max Speed; 1m/s
Camera Angle; 90º
Flying Height; 25 mts
After trying a couple of times I messed up with flying speed, tried once again with 2 m/s didn't work, tried again with 3 m/s and this time it worked. It was possible to pass all the checks and then it uploaded the mission to drone. I pressed play to start the mission. The drone took off and stayed hovering in the air about 2 meters above ground doing nothing, just hovering, for a lot of seconds. I landed, restarted the mission, corrected flying speed, press play for check-ups, managed to upload mission to drone, pressed play to execute, drone hovering again not doing anything. This happened for a third time. I landed and rebooted everything. Tried again.
I must add that I have experienced this hovering issue around 3-4 times in the past but restarting the drone and the phone fixed the problem and I managed to execute the missions, didn't work this time after rebooting the drone and the phone a couple of times. Then after several tries I managed to execute the mission.
So I went for the second mission of the day.
Same set-up and same specs, different polygon, different location. I rebooted the phone prior to run the missiong. This time I corrected flying speed before the flight. Did the usual DJI GO 4 App configuring and test flight, landed, tried 3DSurvey Pilot, I had several tries because of problems with check-ups, I rebooted the phone, rebooted the drone, launched all again, this time no DJI GO 4 App, straight to 3DSurvey, managed the check-ups, drone hovering in the air. Landed, tried another app (DroneDeploy), up to the air, hovering problem, landed, tried 3DSurvey app, hovering problem, landed, rebooted all again, tried DroneDeploy, worked this time.
I must add that all the flights I do, I do it with my phone in Airplane Mode in order to not have people calling me in the middle of a mission or trying to use the poor internet coverage we have on site.
So, my biggest issue is that the hovering problem is becoming more recurrent in time, it has also happened with DroneDeploy, but as I use more 3DSurvey rather than DroneDeploy I would like to know your point of view into this issue and what could be the reasons behind it. At some point today I even thought it could be the cable connecting the phone with the remote control of the drone.
The problem with the app not being able to upload the mission to the drone was new today, and therefore I decided to seek for guidance here at the forums.
I am also keen to share the polygons I'm using and the specs of the flights I am doing if it adds to find the problem.
Thanks in advance!
Cheers.