Complete Mavic 3 Enterprise PPK Workflow Tutorial

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Күн бұрын

See bottom for timestamps. This is a start to finish tutorial on the PPK workflow for the DJI Mavic 3E. This would also apply to the M300, M30, and P4 RTK. I cover every step using the Emlid M2 Receivers (same process as RS2+), EzSurv (but you can use Emlid Studio, and TopoDrone Processing Software to PPK the Drone Flight.
I cover every single detail of the workflow and I will have timestamps (chapters) so you can easily find the sections you want to watch.
Emlid just replaced ReachView 3 with Emlid Flow on Dec 13, 2022. So I will make a video on the PPK process using Emlid Flow and Emlid Studio (processing the data only with same data as this video).
Be sure to visit www.DroneMappingTools.com for your Lidar and PPK mapping needs.
0:00 Splash Screen
0:10 Introduction
1:22 Powerpoint overview of Field Steps
5:58 In Field tutorial of steps
9:15 Start Logging on Emlid Base and Rover
13:39 Collecting GCP's / Checkpoints in Emlid Flow (formerly Reachview 3)
15:55 Stop Logging on Rover and Base
18:12 Powerpoint of Steps in the Office
22:49 About DroneMappingTools.com
23:15 Downloading Base/Rover Log Files
25:44 Good Folder Structure
28:43 Explanation of DJI RTK Image Folder
33:19 FltPlan Go and ADSB Receiver
33:59 Export CSV Survey file (via gmail)
35:46 CORS Map and Downloading CORS Logs
39:55 PPK Processing in EZsurv
49:03 PPK Drone Flight with TopoProcessing
56:47 Processing Images and GCP's in Pix4D

Пікірлер: 63

@joaofreitas39 10 ай бұрын

It helped a lot to clear up some doubts. Really nice!

@Phuong.Nguyen- Жыл бұрын

Very pretty footage 😊

@B1g_Salad Жыл бұрын

I really hope you continue to upload !

@DroneMappingTools Жыл бұрын

thanks Peter! Complete Lidar tutorial will be uploaded today :)

@andrecasagrande8329 Жыл бұрын

AMAZING

@tislammac Жыл бұрын

Great video. My flow plan is to use Emlid Studio, do you have a video using that?

@bobdoby9178 Жыл бұрын

As always, great straightforward content. Can you provide links to the gear necessary to put together an M2 rover. Do you have a LoRa hanging off the pole as well?

@DroneMappingTools Жыл бұрын

Hey Bob. There is no LoRa radio. If I was going to do RTK it would be using the free Emlid Caster service or using a service in Mississippi (I get one free base in North MS). If you had a situtation where you needed to use LoRa then I would go with the Emlid RS2+ Units, not the M2. For RTK via Internet (you have to also include a Jetpack with your setup to provide Internet to the M2), or just doing straight up PPK, then the M2 will be fine. The gear was the Emlid M2 receiver, and this antenna. You can buy the antenna from them direct or I believe Mouser sells it here in the USA. It is cheaper to buy it direct (I believe so anyway). www.ardusimple.com/product/calibrated-survey-gnss-quadband-antenna-ip67/

@kusonsin Жыл бұрын

Awesome video! May I ask, how did you build the two Emlid M2 and are their performance the same as the RS2/RS2+? Many thanks again, and subscribed

@DroneMappingTools Жыл бұрын

I used the M2 with an Ardusimple Antenna. I had sold my RS2 units and used the M2/Ardusimple units for a little bit. But I have since got the RS2+ units. The M2's are good if you are on a budget but I sure do like the convenience of the RS2+ units!

@kantemir_7518 Жыл бұрын

Thank you for your greate work! One question, what is the frequency of logging do you recomend for base station and for drone gnss (if it as a added kit)

@DroneMappingTools Жыл бұрын

It is sufficient to use 1hz on the base and rover for GCPs. You could use 5hz for ground rover if desired. The drone gps add on kit is usually set to 14hz. Hope this helps

@XavierBEAUNOL Ай бұрын

Hello thanks for this accurate video, one question, I can we do when we are in an area without any CORS station around, I mean really nothing; Can we just use the base and rover information to accomplish the mission ?

@eparustefan Жыл бұрын

Nice and complex video. So my question is why you choose ppk method when you could have faster embed geotagged photos with the rtk method. You use the same correction equipment for the both methods so the errors should be about the same. I get it that you have more control over the ppk than the rtk but does it really win when you compare effciency over precision and error control ? At the end you will stil compare with a gcp data aqusition.

@codywildgust3933 Жыл бұрын

Depending on the location you may not be able to feasibly run RTK corrections to the drone consistently if there are lots of obstructions in the area. (ie. remote areas with poor access and lots of trees/undulating terrain, etc)

@NicoTripcevich 9 ай бұрын

Is your Base-Rover setup connected via LORA radio or all these independent logs? Is LORA worth doing in a PPK workflow? I notice that in Reachview my Rover says "FIX" when I'm using local radio RTK between Base-Rover. I didn't see Lora antennas -- is it because your EMLID are older and dont have LORA?

@caliltorres7768 8 ай бұрын

Really good video, thank you. Do you know if the raw GNSS files suitable for PPK are also generated when using the Mavic 3 in the Thermal version (M3T)?

@DroneMappingTools 8 ай бұрын

HI Cali. As long as you have the RTK module installed on the M3T then the PPK files are generated. However, I now believe it is much better to do RTK flights if using the Emlid RS units and use PPK as a backup if you have problems with your RTK flight. More satellites are used for RTK than for PPK.

@travislawrence4679 Жыл бұрын

Do you get a lot more requests for ellipsoid elevation vs geoid?

@DroneMappingTools Жыл бұрын

Hey Travis, almost all final deliverables will be in Geoid (Orthometric) height, not ellipsoid.

@figoagrielmeaghan4807 Жыл бұрын

Hi great content. I just wanna ask, can mavic rtk module connect to any type of base antena? Or u need specific model Like m2 base or dji D rtk base ?

@DroneMappingTools Жыл бұрын

For RTK it is not connecting to the antenna directly but rather to the NTRIP network. The RS2 may be the base for the correction but you are actually connecting to the network. So the base can be any base and not just RS2 or DJI base. For PPK it can be any base and you will use the Rinex file from that base to do the PPK processing.

@figoagrielmeaghan4807 Жыл бұрын

@@DroneMappingTools thank you so much. This will help me a lot. Nice content, new sub. Can't wait for another video. Keep the good work brother 👍👍👍

@jamiesonallen9214 Жыл бұрын

What were the final RMSEs on the Ground Control Points? Nobody on KZfaq is giving these that I have been able to find.

@DroneMappingTools Жыл бұрын

I will be back in the office the week after Christmas and I will do a short video to show that.

@vp62ift Жыл бұрын

I probably missed it on the video , how do you set the rtk module on the Mavic 3 , does it need to be logged into NTRIP or to your base

@DroneMappingTools Жыл бұрын

When you have the RTK module installed, the Mavic three enterprise will automatically log the GNSS data files needed for PPK processing. You would then use your own local base files or a CORS station as a reference.

@vp62ift Жыл бұрын

@@DroneMappingTools thank you for the quick response. I got my M3E yesterday and did a 2d ortho in my neighborhood using drone deploy . I do see the ppk files there, that’s awesome. 79 acres under 18 minutes that is insane at 250 ft. That same map plan with my Mavic 2 pro was over 40 minutes with 3 battery changes

@volantdrone Жыл бұрын

Perhaps I missed it but typically I will have 3-4 folders of data each with their own obs and mrk files. Does each folder of data need to be processed separately with their respective files?

@DroneMappingTools Жыл бұрын

If using the TopoDrone ppk software, you can batch process all of them at the same time.

@volantdrone Жыл бұрын

@@DroneMappingTools Thank you. I will take a look

@jdenotter26 Жыл бұрын

So I’m confused why do you need the RTK module if you’re doing PPK? If your using the RTK module with the the base station or a NTRIP that’s not PPK. So what are you using the RTK module for?

@DroneMappingTools Жыл бұрын

Hi Jon, the reason is that without the RTK module the required gnss log files are not recorded to do PPK. It is also a higher quality L2 antenna. Hope this helps.

@vp62ift Жыл бұрын

What is the minimum control points you need per for a 10 acre property

@DroneMappingTools Жыл бұрын

If you’re doing PPK or RTK, for 10 acres. I think it is adequate to have three checkpoints to validate the accuracy of the data. But you always need to have checkpoints in order to validate the accuracy for your client. You can always collect extras. It is better to have them and not need them then the other way around. If I collected five points on a 10 acre lot, it might be that two of them needed to be used as control in the other three could be used to check points. It would just depend on how accurate the results were. I hope this helps.

@Ironfist76 Жыл бұрын

Can I do PPK with this drone and the Dji D-RTK2 base station?

@DroneMappingTools Жыл бұрын

TTK Ironfist, you can can certainly do PPK if you are using the RTK2 base station. The D-RTK2 base station is for RTK so whether you are using the D-RTK2 or using an Emlid RS2/ M2 as a base, you can still do PPK on the drone flight later (as long as you have the RTK module installed on the Mavic 3E which would be required for RTK or PPK) I would think that is understood but want to clarify. PPK is completely separate from RTK. I hope this helps!

@Ironfist76 Жыл бұрын

@@DroneMappingTools yes, thanks!

@myka452 3 ай бұрын

Can you explain why is the topodrone processing required? Aren't the images/coordinates corrected in the EZsurv?

@DroneMappingTools 3 ай бұрын

Myka, let me clarify a few things. 1. In 2024 you should be flying the Mavic 3E in RTK. There is no reason not to fly RTK if you have a Emlid Receiver or a Stonex S900/S980 receiver. 2. Emlid Studio offers free PPK processing for any DJI Enterprise RTK drone. (the M3E requires the RTK module) 3. EZsurve is software that I have owned for many years. EZsurv, TopoProcessing and Emlid Studio are all doing the same thing. But Emlid Studio does not do reprojections where as EZsurv and TopoProcessing do in fact do reprojections for the PPK processing. Hope this helps.

@myka452 3 ай бұрын

@@DroneMappingTools thanks for the prompt response. My question was mainly a newbie question because I am learning the data processing workflow from A to Z and all the steps required. It is hard to find good literature or videos with the explanation why this or that step is required. Also, I am not sure why to do the reprojection so trying to gather as much info as possible. Great video btw, learned a lot.

@DroneMappingTools 3 ай бұрын

@@myka452 I will have a photogrammetry 101 video (2024) version very soon. It will be far better than my old video. That will no doubt help alot :)

@AbyssalPlain 5 ай бұрын

What format are you using for logging? RINEX? UBX?

@DroneMappingTools 5 ай бұрын

I have the Emlidflow set to BOTH UBX and Rinex. But on the longer observations it is only doing Rinex :( But either should work.

@DroneMappingTools 5 ай бұрын

I now do RTK on my Emlid 3E 99% of the time. I only do PPK on the Lidar flights as they require PPK processing. If you are not doing RTK on the M3E, you should be. The results are awesome. I did a video on multiple options for setting up RTK on the M3E using the Emlid RS2/ RS3.

@francoisbadenhorst3759 Жыл бұрын

Is it possible to get a trial version of the PPK geotagging software?

@DroneMappingTools Жыл бұрын

Absolutely. To get a fully functional trial go to www.topodrone.com/downloads/ Scroll down to > 3. Software and there you will download the software. After you have installed it, you will register with TopoDrone for a free account and trial of the software.

@DroneMappingTools Жыл бұрын

Francois, TopoDrone has two versions of the PPK Software. One is PPK Procesing and the other is RTK Processing. When you use the RTK Version, it will expect the OBS file from the M300 or Mavic 3E. There will be 4 files in each folder and one of them will be the OBS file instead of a UBX file like you would have on other PPK systems.

@francoisbadenhorst3759 Жыл бұрын

@@DroneMappingTools Awesome, can I perhaps have your email address?

@DroneMappingTools Жыл бұрын

@@francoisbadenhorst3759 send me an email thru the contact page here and I will then reply to you. Just cutting down on the spam bots :) www.dronemappingtools.com/pages/contact

@davidbowles5263 Жыл бұрын

Where is the Mavic 3 E setup and flight? Is your M3E connected to a free CORS or the base station? We don't get free CORS in Texas.. How does that work? Is my M3E broken? The RTK module will not connect unless it is logged into some kind of of NTRIP. I was hoping this video was going to go over all that. Would you please make a video on how to setup the M3E with the RTK module, no CORS (we can download the files for PPK processing), and with the inexpensive base and rover? Thank you very much.

@DroneMappingTools Жыл бұрын

Hi David. The Mavic 3E is an awesome little drone. If you are going to do PPK, then you only need software to do the PPK processing. You will obtain the data files from your Mavic 3E (photos folder) and then you will download the CORS log file (free of charge) if you do not have your own base station. The TopoDrone PPK Processing does an excellent job for that. If you want to do RTK, then you must either 1) have an RTK service which is usually very expensive. The lucky folks in FL get free RTK all over the state. That is the only state in the USA like that. In Mississippi I get one free RTK base. So I will take that. Option 2) is to have your own base unit that can provide RTK service to the drone. The only base I am aware of is the Emlid RS2+. You get FREE Caster (NTRIP) service thru them when you have the RS2+ so the only thing you need is an internet connection in the RS2+ and your Mavic 3E controller must also have an internet connection (via wifi). I hope that answers your questions. If not, write back and I will try to clarify.

@davidbowles5263 Жыл бұрын

@@DroneMappingTools Thank you very much for the reply. Definitely helping my understanding. So, just for my ignorance, if I'm doing PPK, there's no need for the RTK module on the M3E? Thanks again.

@DroneMappingTools Жыл бұрын

@@davidbowles5263 David, you do in fact need the RTK module (whether doing RTK or PPK). The RTK Module ($700) is required in order to generate the GNSS data files needed to do PPK processing. If you do not have the RTK module installed, it will not generate the files and it would be like flying a regular phantom 4 pro, etc. in terms of photo data.

@davidbowles5263 Жыл бұрын

@@DroneMappingToolsThank you again for the reply. I'll call DJI and ask them why my RTK module will not connect to the M3E. Your patience is greatly appreciated.

@DroneMappingTools Жыл бұрын

@@davidbowles5263 David, just for clarification.. do you have the RTK Module installed on your Mavic 3E? Here is a photo of the module. (topodrone.com/product/uav/228/233/240/mavic_3_enteprise_thermal/1341/ ). I do not understand your issue when you say that the "RTK Module will not connect to the Mavic 3E". The RTK module just screws on to the top of the Mavic 3E. Then once it is installed, you just fly your mission and the necessary files for doing PPK processing will be saved in the image folders. If you desire to do RTK flights, then you have to have RTK service and you will enter your login details for the RTK service in the DJI Pilot 2 app. But once the module is attached to the top of the Mavic 3E, you can do PPK processing regardless of whether you fly with RTK or not.

@juanpelevillarrealsalome3038 8 ай бұрын

En español pues.

@DroneMappingTools 8 ай бұрын

En la esquina inferior derecha del video, haga clic en Configuración > Subtítulos > Luego haga clic en Traducción automática. Puedes seleccionar español. Lo siento mucho que no hablo español. Proporcionado por el Traductor de Google