If you select "fruit tree" setting it's impossible to change the "output coordinate system". You have to select "urban" to do it, but this will create a DSM much heavier file (terra vers. 3.0.4)
Scenario; 1 day to map a 200 hectare site. I have no terrain data. I don't have time to fly the area to create a DSM. Where can I source a DSM? Even DroneDeploy is able to source this for free, on the run (ie no download/upload). Help!!
Hi. I am conducting a survey using an M3E-RTK unit, in an area that is very remote. No GSM coverage at all, therefore I cannot receive RTK corrections. I need to use terrain follow and plan to apply PPK processing, using Propeller Aeropoint as the portable base station for corrections. I've uploaded a DSM in the correct projection into the controller, and all looks good. Before I reach site, I want to confirm that RTK does not need to be turned on in order for the drone to follow the terrain-adjusted waypoints (Ground + 60m). Please confirm, thanks.
When using the L1 the aircraft should "know" exactly how far it is from the terrain. Why is it necessary to create a DSM prior to the mission with the L1?
20MB low-res TIFF max ? Really ? And minimum flight altitude is 81m AGL ? Well for large survey multi-battery missions with whatever payload this is a huge limitation..
There is a huge flaw with this system. I need to terrain follow a mapping flight to maintain a legal height above ground and a safe height above tree canopy but I can’t without flying it first to get a DSM file. Is it just me or is this just DJI just being funny and playing Catch 22. Just do what other mapping programs do please.
Sometimes a DSM can be already available from other sources. For example in Italy we have a 10m DTM for the whole country, which could be enough for some applications
Does this automatically apply a geoid separation to the dataset? Most datasets available for use, SRTM or ASTER are in EGM96 and therefore need conversion? If so could this be the reason I am getting incorrect flight heights on my M3E custom DSM import? I convert my DSM to WGS84 and ellipsoidal but the planned heights do not make sense!
I'm seeing the same thing. If I execute a flight over flat terrain at a fixed altitude as measured from the takeoff position, I get an ortho with the predicted GSD. However, if I turn terrain following on and execute the exact same flight, I get an ortho with a GSD that's not what I planned for. In this case, I flew both at an "altitude" of 325ft with the P1-35mm. GSD calculator estimates this to yield ~0.47in GSD. According to the Pix4D report, the estimated GSD for the flight with terrain following turned OFF was 0.44in (close enough), but the Pix4D report for the flight with terrain following turned on was 0.6in, which indicates (backwards math) that my ACTUAL flying height was ~409ft (breaking FAA Part 107 regulations in the US). My applications do need to be more precise than this, but more importantly, I can't break the 400ft ceiling rule. Before it's asked, the drone was connected to RTK for both flights and my DSM was created from a extremely accurate Statewide LiDAR collection that was collected within a year of my test flights. Ellipsoid elevations of the DSM used in the flight matched field verified points using a Trimble R-10 GNSS receiver (survey grade positioning). Has anybody actually got terrain following to work?!
DJI Pilot 2 with Mavic 3E does not calculate the flying height correctly. I inform that I use a DTM with ellipsoidal height and WGS84 projection in geographic coordinates
Hi, we have a lot of problems with the terrain following mode on the m300. Any one have a step by step tutorial to make it work? The m300 just go to the floor on the first waypoint. Try everything but we don't know hoy to make a 35 meters fly following the terrain imported the DSM with the tfw on wgs84 but on first waypoint the m300 go to the floor. Thanks!!!!
Currently the service requires the elevation data from the user to be created and transferred to the Pilot app/RC, we continue to explore options for easier online accessibility for users in the future.
Bug with DJI Pilot & Matrice 300RTK was fixed where operator was unable to resume mission after battery swap when utilizing the Mapbox service. Would have to be more specific in regards to DJI Terra issue and drone type.
Is RTK required to utilize terrain awareness or is it simply recommended to use? With spatial resolution less than 10m on dsm, GPS positioning should be sufficient for safe terrain awareness without utilizing RTK mode..
Recently I install the last firmware to my M300RTK, I did everything explained here in the video but with DSM from a 3rd party software and then planned the mission with at 80 mt AGL . When aI was on the survey area I load the mission and then link my D-RTK 2 with the M300. As soon the mission started the M300 climb to 60 mt and flew all the mission between 20 to 35 mts below the requested altitude and at every waypoint he stops wasting a lot of energy reducing the flight time. Someone have and advice
Make sure the DSM is 20MB or smaller, with spatial resolution less than 10m. Utilize WGS 84 / EPSG: 4326 for coordinate reference system. Vertical datum for elevation data should be ellipsoidal. If still encountering issues would reach out to support@dji.com for further assistance.
Is this Terrain Awareness mode available for a Mavic 2 Enterprise Advanced? I don't see "Terrain Follow" in the Mapping missions configuration screen. Thanks
@@DJIEnterprise do you mean 3rd party mission planning software can be installed on the smart controller? I'm used to using MapPilot on my old Mavic2 with an iPad.
I thought this was Terrain Following. Why are you using a DSM? If you are flying areas where the "surface" changes (home development, forests, etc.), you wont have up to date high resolution DSM's. Why not be able to use a DTM/DEM instead and set your height based on your surroundings?
@@DJIEnterprise I understand that a DSM does take into account those surface changes. My concern is if you are flying an area that does not get regular high resolution DSM updates and the landscape changes, such as timber harvesting; you will not be able to set your height to a negative value to fly lower. For example: I fly a timber unit today that has a canopy height of 30m. The DSM does take that into account. But next week the timber unit has been harvested. I will not have an updated DSM for that area. If I wanted to fly 20 meters above the ground, I would actually be flying 20 meters above the "canopy".
@@DJIEnterprise We're trying to use state airplane 1M Lidar datasets to use as our dem. The issue we appear to be having is the m300 is flying well past the set range (Lets say our ground level is 200 ft about sea level and we set it for 220 flight alt - the range is from 410-460 for our terrain mission - the m300 is flying straight up past all of these values - why would it be flying well past 400 ft AGL at start of mission?
I think i answered my own question, that it doesn't actually matter. Becuase it'll use the take off locaiton as the base reference for the flight height and just offset from that?
YO! WHY do we need to do all this stupid shit? Load our own DSM? Why isn't SRTM data already in the Pilot app? We should be able to just turn on Terrain Following and it does it's thing. My PHANTOM can do that... This is stupid and a waste of time.
If you select "fruit tree" setting it's impossible to change the "output coordinate system".
You have to select "urban" to do it, but this will create a DSM much heavier file (terra vers. 3.0.4)
Scenario; 1 day to map a 200 hectare site. I have no terrain data. I don't have time to fly the area to create a DSM. Where can I source a DSM? Even DroneDeploy is able to source this for free, on the run (ie no download/upload). Help!!
Hi. I am conducting a survey using an M3E-RTK unit, in an area that is very remote. No GSM coverage at all, therefore I cannot receive RTK corrections. I need to use terrain follow and plan to apply PPK processing, using Propeller Aeropoint as the portable base station for corrections. I've uploaded a DSM in the correct projection into the controller, and all looks good. Before I reach site, I want to confirm that RTK does not need to be turned on in order for the drone to follow the terrain-adjusted waypoints (Ground + 60m). Please confirm, thanks.
You need to get the Real-Time Terrain follow option on this like the Mavic 3 Enterprise series.
DJI need to talk to Wingtra on how to do terrain follow.
When using the L1 the aircraft should "know" exactly how far it is from the terrain. Why is it necessary to create a DSM prior to the mission with the L1?
20MB low-res TIFF max ? Really ? And minimum flight altitude is 81m AGL ? Well for large survey multi-battery missions with whatever payload this is a huge limitation..
To clarify 25 meters/82 feet is the minimum flight altitude above terrain.
Does 20MB not allow for enough detail with your flight mission?
@@DJIEnterprise I agree with Michal - 20MB isn't hardly enough for large mapping missions.
@@DJIEnterprise for Some agriculture applications, 25m of height is not close enough from the ground
There is a huge flaw with this system. I need to terrain follow a mapping flight to maintain a legal height above ground and a safe height above tree canopy but I can’t without flying it first to get a DSM file. Is it just me or is this just DJI just being funny and playing Catch 22. Just do what other mapping programs do please.
Sometimes a DSM can be already available from other sources. For example in Italy we have a 10m DTM for the whole country, which could be enough for some applications
At 3:40 we have added an option to import a DSM utilizing an internet connection so you do not have to create one yourself.
Does this automatically apply a geoid separation to the dataset? Most datasets available for use, SRTM or ASTER are in EGM96 and therefore need conversion? If so could this be the reason I am getting incorrect flight heights on my M3E custom DSM import? I convert my DSM to WGS84 and ellipsoidal but the planned heights do not make sense!
I'm seeing the same thing. If I execute a flight over flat terrain at a fixed altitude as measured from the takeoff position, I get an ortho with the predicted GSD. However, if I turn terrain following on and execute the exact same flight, I get an ortho with a GSD that's not what I planned for. In this case, I flew both at an "altitude" of 325ft with the P1-35mm. GSD calculator estimates this to yield ~0.47in GSD. According to the Pix4D report, the estimated GSD for the flight with terrain following turned OFF was 0.44in (close enough), but the Pix4D report for the flight with terrain following turned on was 0.6in, which indicates (backwards math) that my ACTUAL flying height was ~409ft (breaking FAA Part 107 regulations in the US). My applications do need to be more precise than this, but more importantly, I can't break the 400ft ceiling rule. Before it's asked, the drone was connected to RTK for both flights and my DSM was created from a extremely accurate Statewide LiDAR collection that was collected within a year of my test flights. Ellipsoid elevations of the DSM used in the flight matched field verified points using a Trimble R-10 GNSS receiver (survey grade positioning). Has anybody actually got terrain following to work?!
@@SlackerOH Would be curious as to how Pix4D calculates GSD, if relative altitude is used could be off.
@@jaybaxter7799 Heights shown in bottom bar are causing the confusion or flight height of drone?
DJI Pilot 2 with Mavic 3E does not calculate the flying height correctly. I inform that I use a DTM with ellipsoidal height and WGS84 projection in geographic coordinates
We are having the same issue!
Same
Hi, we have a lot of problems with the terrain following mode on the m300. Any one have a step by step tutorial to make it work? The m300 just go to the floor on the first waypoint. Try everything but we don't know hoy to make a 35 meters fly following the terrain imported the DSM with the tfw on wgs84 but on first waypoint the m300 go to the floor. Thanks!!!!
Please make sure the vertical datum for elevation data is ellipsoidal.
@@DJIEnterprise why not this service online?
Currently the service requires the elevation data from the user to be created and transferred to the Pilot app/RC, we continue to explore options for easier online accessibility for users in the future.
@@DJIEnterprise please,all profesional software like ugcs do it online
@@DJIEnterprise Hi, how do you do this? Can you please provide more detail about how to make sure the elevation data is ellipsoidal?
Is the terrain awareness option available if using the P4P RTK with SDK controller?
This feature is only currently available in DJI Pilot for the Matrice 300RTK.
@@DJIEnterprise Is this going to be implemented for P4 series also?
Did you fix the bug of DJI Terra that makes it impossible to fly the second time, after first battery replacement?
Bug with DJI Pilot & Matrice 300RTK was fixed where operator was unable to resume mission after battery swap when utilizing the Mapbox service. Would have to be more specific in regards to DJI Terra issue and drone type.
@@DJIEnterprise Excellent. Thak you
Can I Use the M300 with Terra and how do I connect the controller to Terra I've been battling. All info is just for Phantom 4 range
Though you can use Terra to process data collected with the M300 and its payloads, Terra cannot be used as the flight software.
@@DJIEnterprise i have come to accept that .. now my challenges are How do I use Terra outputs to work on Civil 3D and AES collection and infraWorks
Is RTK required to utilize terrain awareness or is it simply recommended to use? With spatial resolution less than 10m on dsm, GPS positioning should be sufficient for safe terrain awareness without utilizing RTK mode..
RTK needs to be enabled before performing terrain follow
@@DJIEnterprise SO Just to confirm, of you do not have the D-RTK base you cannot use terrain follow?
is it possible to use a dsm in an automatic mission with mavic 2 enterprise dual?
This is not currently an option with DJI Pilot. Can look into 3rd party MSDK solutions.
Recently I install the last firmware to my M300RTK, I did everything explained here in the video but with DSM from a 3rd party software and then planned the mission with at 80 mt AGL . When aI was on the survey area I load the mission and then link my D-RTK 2 with the M300. As soon the mission started the M300 climb to 60 mt and flew all the mission between 20 to 35 mts below the requested altitude and at every waypoint he stops wasting a lot of energy reducing the flight time. Someone have and advice
Make sure the DSM is 20MB or smaller, with spatial resolution less than 10m. Utilize WGS 84 / EPSG: 4326 for coordinate reference system. Vertical datum for elevation data should be ellipsoidal. If still encountering issues would reach out to support@dji.com for further assistance.
Thanks for your reply I'll do that and I keep you updated about the progress on the support mail. Thanks again
@Christian: You have to add the GEOID height of your area to the flight height. That did the trick for me.
@@bastioyunbozan3979 Thanks for the tip I’ll check. Have you experience that at each waypoint the aircraft reduce the speed or almost stops?
@@bastioyunbozan3979 Hi, how do you do this in DJI pilot?
Is this Terrain Awareness mode available for a Mavic 2 Enterprise Advanced? I don't see "Terrain Follow" in the Mapping missions configuration screen. Thanks
It is not, only the M300RTK. Could investigate using a third party mission planning software using our MSDK to enable this capability with your M2EA.
@@DJIEnterprise do you mean 3rd party mission planning software can be installed on the smart controller? I'm used to using MapPilot on my old Mavic2 with an iPad.
Correct. 3rd party MSDK apps such as UCGS or DroneLink may work for your application.
I thought this was Terrain Following. Why are you using a DSM? If you are flying areas where the "surface" changes (home development, forests, etc.), you wont have up to date high resolution DSM's. Why not be able to use a DTM/DEM instead and set your height based on your surroundings?
DSM takes into account surface changes such as a home, development, forest etc to maintain a consistent GSD.
@@DJIEnterprise I understand that a DSM does take into account those surface changes. My concern is if you are flying an area that does not get regular high resolution DSM updates and the landscape changes, such as timber harvesting; you will not be able to set your height to a negative value to fly lower.
For example: I fly a timber unit today that has a canopy height of 30m. The DSM does take that into account. But next week the timber unit has been harvested. I will not have an updated DSM for that area. If I wanted to fly 20 meters above the ground, I would actually be flying 20 meters above the "canopy".
Could utilize the DTM altitude instead of the DSM, the software is just going off the values that you provide.
@@DJIEnterprise We're trying to use state airplane 1M Lidar datasets to use as our dem. The issue we appear to be having is the m300 is flying well past the set range (Lets say our ground level is 200 ft about sea level and we set it for 220 flight alt - the range is from 410-460 for our terrain mission - the m300 is flying straight up past all of these values - why would it be flying well past 400 ft AGL at start of mission?
What are the options to get the DSM file? Where?
Is it possible to create a route (i.e a KML) and convert that route to waypoints that would follow the terrain ?
This is currently not an option, the terrain follow is only available for mapping missions.
dope
Is it possible to use L1 for terrain-following?
No this is currently not an option.
Is it Terrain Follow mode available with Zenmuse L1 sensor?
Yes this option is available when running a mapping mission with the M300.
@@DJIEnterprise no, actually it doesn't work
@@DJIEnterprise is it a yes or a no (as stated two comments above)?
does the DSM need to be ellipsoid or geoid height?
I think i answered my own question, that it doesn't actually matter. Becuase it'll use the take off locaiton as the base reference for the flight height and just offset from that?
Ellipsoidal
@@DJIEnterprise how do you check whether the DSM is ellipsoidal or geoid?
Can look at the vertical datum being used in the dataset by looking at the metadata or opening it in a GIS software.
YO! WHY do we need to do all this stupid shit? Load our own DSM?
Why isn't SRTM data already in the Pilot app?
We should be able to just turn on Terrain Following and it does it's thing.
My PHANTOM can do that... This is stupid and a waste of time.
Checkout our latest video on terrain follow options in Pilot 2 here: ruclips.net/video/bUwVeYCnVIc/видео.html