Phew..

Outta Control · Apr 19, 2018

Just got back from mapping the largest facility I have done. Just to build this...

And this....

The shear size of the building is this...

I used my Mavic Pro and it performed well even from a gust of 15-18 mph. I used 3 batteries.

I can only hope the data images are clean (935 images) and can find the GCP.

BigAl07 · Apr 20, 2018

Excellent post. How many acres was this? Was it just the facility or the land and everything?

Outta Control · Apr 20, 2018

The recorded data from DD stated 52 acres. Surely felt a lot bigger.

Client only wants the facility not the property. On the business end, they are looking into bringing me out every month as the facility is being renovated.

BigAl07 · Apr 20, 2018

Outta Control said:
The recorded data from DD stated 52 acres. Surely felt a lot bigger.

Client only wants the facility not the property. On the business end, they are looking into bringing me out every month as the facility is being renovated.

Well done. That's where most of my bread & butter comes from. The monthly or every other week gigs are Easy as PIE!!

Outta Control · Apr 20, 2018

Thanks Brotha. Only issue I got was the surveyor what not present to give me the RTK coordinates for the GCPs and the EPSG Code. Which kind of perturbed me as they need the deliverable by Tuesday.

So I am looking at the Emlid Reach RS+ so I don't have to rely on getting those coordinates. Any experience with them BA?

BigAl07 · Apr 20, 2018

Outta Control said:
Thanks Brotha. Only issue I got was the surveyor what not present to give me the RTK coordinates for the GCPs and the EPSG Code. Which kind of perturbed me as they need the deliverable by Tuesday.

So I am looking at the Emlid Reach RS+ so I don't have to rely on getting those coordinates. Any experience with them BA?

No sir I'm afraid not.

It blows Mr. High Dollar Surveyor wasn't there to get things "set" for you.

Outta Control · Apr 20, 2018

Yeah he was scheduled to be there but never showed up. I hope the end-client would understand.

Ovr-Site · Apr 21, 2018

Looking forward with much excitement to the DJI Phantom 4 RTK hitting the US market. Hope DJI doesn’t follow Trimble & others by pricing it above the average drone operators budget.

Gord955 · Apr 21, 2018

That is nothing less than amazing, I'm surprised you used a Mavic. Maybe once you get some time you can update us on how your project turned out.

Outta Control · Apr 21, 2018

Gord955 said:
That is nothing less than amazing, I'm surprised you used a Mavic. Maybe once you get some time you can update us on how your project turned out.

I will but currently the images are still being processed. It has almost been 24 hours since uploaded and this worries me.

R.Perry · Apr 21, 2018

Wow, 935 photos for 52 acres. What altitude were you flying and what were your overlaps. I do 147 acres each month shoot 606 photos. I'm flying at 300 feet and 65/75 overlap.

Outta Control · Apr 21, 2018

Altitude was at 200' with overlap of 80/70.

R.Perry · Apr 21, 2018

Ok, that makes sense. Well good luck on your mapping. I don't know about who you are having process them, but our company takes a few days to process the mapping. But they are processing for branches all over the country.

Jesse G · Apr 23, 2018

Outta Control said:
I will but currently the images are still being processed. It has almost been 24 hours since uploaded and this worries me.

What service are you using to process? That is a decent sized data set but 24 hours is a little ridiculous. I process in house with agisoft photoscan and have done larger data sets than that in a shorter amount of time. If you didnt get coordinates on your gcps are you just prpcessing with drone gps data?

Outta Control · Apr 23, 2018

Jesse G said:
What service are you using to process? That is a decent sized data set but 24 hours is a little ridiculous. I process in house with agisoft photoscan and have done larger data sets than that in a shorter amount of time. If you didnt get coordinates on your gcps are you just prpcessing with drone gps data?

Hey Jesse. We are using Drone Deploy. As an update, I re-processed the images and the second time was completed in less than 15 hours. So there must have been some sort of glitch on the first time.

No Faraday's surveyor was to come out and provide me with the GPC and EPSG Codes so I can input them to DD, but he never showed up. I was thinking of getting my own RTK Receiver to get the GCP coordinates but my mapping expert buddy recommend against it and let the licensed surveyor be responsible for those coordinates.

Outta Control · Apr 25, 2018

Gord955 said:
That is nothing less than amazing, I'm surprised you used a Mavic. Maybe once you get some time you can update us on how your project turned out.

Here are some shots of the finished product. I am amazed with the Mavic Pro's ability to generate this image but honestly the next time I will use my new P4P.

As a side note, I would have done the mapping early morning when it was overcast but the client wanted to do it at noon.

Gord955 · Apr 26, 2018

I'm pleased it turned out using the Mavic, the building is massive, can't wait to see what the Pro2 is capable of. How many GCP would you need for a property that size? I'm shooting 143 acres tomorrow for a real estate listing, my biggest project so far.

R Martin · Apr 26, 2018

Outta Control said:
Thanks Brotha. Only issue I got was the surveyor what not present to give me the RTK coordinates for the GCPs and the EPSG Code. Which kind of perturbed me as they need the deliverable by Tuesday.

So I am looking at the Emlid Reach RS+ so I don't have to rely on getting those coordinates. Any experience with them BA?

I don't know your setup. We have been using a couple of Trimble Geo 7X units with a mapping package to set control up until a few months ago. They are nice units for mapping and we are getting centimeter grade accuracy from them as long as they aren't in a blind spot (which is common with all GPS units). Recently we switched to Aeropoints (Drone Data Platform for Worksites | Propeller). You set them out and turn them on, fly your job, turn them off and pick them up in reverse order. They connect to a wifi connection and upload the data. You download the data and report and input your numbers into Pix4D or whatever you are using to process your imagery. Viola! Millimeter accuracy (survey, or for us non-RPLS type, near-survey grade). They are sold in a package of 10 units that can cover up to 300 acres per set.

Outta Control · Apr 26, 2018

Gord955 said:
I'm pleased it turned out using the Mavic, the building is massive, can't wait to see what the Pro2 is capable of. How many GCP would you need for a property that size? I'm shooting 143 acres tomorrow for a real estate listing, my biggest project so far.

I tagged over 25 GPC points but clients only wants 5.