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Why DH unable to take Picture when Lost of signal?

Sat, 10 Mar 2018 16:47:22 GMT

Hello Team, Today and forward i would like to use DH for Mapping Big area about 320ha. i need to take some benchmark before work on that area, to calculate time consumption. the flight plan catalog that i choose is TOP DOWN. when the test work on 100m Altitude, along 1347m flight length, the image cont about 15 point, i choose speed for 50Km/h. Drone only take one picture at the first point, the other 14 point is nothing? I change my tablet to do the same, but the result is the same. The question is : Is the the drone unable to take picture when the signal lost in the middle of running? my experience with Litchi apps, the drone will continue with the program although the lost signal due to interference or distance.

Sun, 11 Mar 2018 00:38:12 GMT

here is the plan for benchmark that i made it before [Problem with actionpng_Page1](//muut.com/u/droneharmony/s2/:droneharmony:5sGB:problemwithactionpng_page1.png.jpg)

Sun, 11 Mar 2018 00:51:16 GMT

Please help for advice. I believe DH can do TP DOWN scenario as my plan that i make it before, later on I decide to divide the area become 12 part (6 part mission already make it). Is the DH will continues work while mapping ( take the picture) area event some time we lost signal in the middle of run? here I attached the Big plan for Mapping [Big Planing for mapping 320ha](//muut.com/u/droneharmony/s2/:droneharmony:mAQM:bigplaningformapping320ha.jpeg.jpg)

Sun, 11 Mar 2018 00:54:56 GMT

here the teh example for the plan [Part5png_Page1](//muut.com/u/droneharmony/s2/:droneharmony:iohz:part5png_page1.png.jpg)

Martin Fuchsberger
Sun, 11 Mar 2018 15:09:43 GMT

Hi dronecam, please refer to http://droneharmony.com/faq.html#flightplanexec in the section "RC - Drone Connection Signal Lost" to learn more on what happens if you lose connection to the drone. Please not that Drone Harmony does not advocate to fly your drone in signal loss situations. In most countries this is illegal, as by law you have to able to control your drone manually at any point in time in order to react to dangerous situations that can occur in the airspace (think of a helicopter entering the airspace of your drone). We know that there is still a DJI bug that can lead to missing images in general. It could be that you experienced that bug. DJI promises to fix this with the next SDK update. https://github.com/dji-sdk/Mobile-SDK-Android/issues/184 We will be able to follow up on their bug fix with an update as well. Best regards, Martin

Sun, 11 Mar 2018 21:10:17 GMT

Hi Martin, Thanks for the explanation. on that situation before.. i choose Flying in precise-images (stopping at waypoint) mode and taking RGB images: Drone will continue taking images according to mission plan. i was thinking this option is like on litchi apps before. the problem with litchi is only receive less then 100 way point. I was hope that DH can answer the solution for mapping area with more then 100 waypoint and answer the changeling when we run mapping on the big area event some time we lost signal in the middle of running due to interference or distance. I hope that DJI fix the bug soon for the next SDK update.. Thanks

Martin Fuchsberger
Mon, 12 Mar 2018 15:49:03 GMT

Dronecam yes I understand the problem you are facing. We do want to improve also the RC lost behaviour, i.e. give the user some choice on what happens. This may include also a potential solution for covering larger areas.