PPK topographic/photogrammetry dji Phantom 4 using M2

Reach Module / M+ / M2 Hardware integration
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can someone give me guide how to conduct PPK topographic/photogrammetry using dji Phantom 4 with m2 module?

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Have you installed the module already?

4

Hi Joseph,

Reach M2 should be connected to the camera’s hot shoe to record precise time marks for the PPK Mapping. However, DJI Phantom 4 doesn’t provide hot shoe access. That’s why there is no straightforward way for its integration with Reach M2.

So the only reliable workaround here is to place GCPs in RTK with 2 Reach RS2 or 2 Reach RS+. It allows you to achieve several centimeters of accuracy for your project as well. This article from our docs contains the workflow description and several useful tips for GCPs placing.

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so it is posible to achieve precise mapping with the method you’ve mentioned?

i mean without rtk module mounted on the phantom 4 by just placing GCP on the ground we can get precise mapping? is that posible? if it is? how to process the data?

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i haven’t yet buy phantom 4

9

Hi Joseph,

Yeah, it’s possible. In fact, it’s a traditional way to do drone mapping. Drones with RTK/PPK modules on a board are a relatively new solution.

But you probably need more GCPs than when flying with RTK/PPK drone. The final number depends on your area. I usually suggest checking this article from Pix4D. The great investigation about the needed number of GCPs. It should be interesting for you especially because they use DJI Phantom P4P there.

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