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Smartphone used as RTK rover?

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(@flga-2-2-2-2-2-2-2-2)
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Things that make surveying look simple to the uneducated public.

https://www.pix4d.com/product/vidoc-rtk-rover/

 
Posted : 29/04/2023 3:49 am
(@rover83)
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It looks like it might be nifty for documentation and maybe rough planning purposes.

But I laughed out loud when I saw this part:

image

 

"Overcome highly technical obstacles by cramming highly technical things into a smartphone."

 

 

 
Posted : 29/04/2023 4:53 am
(@jon-payne)
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Looks pretty handy for certain applications.  I am not familiar with the accuracy of the phone scanning systems or the accuracy of the unit shown, but that might be the solution to the frequent "how are you measuring sewer inverts" question.  It looks like it would give a full scan of the structure so you would have all the pipes in and out.

 
Posted : 29/04/2023 6:23 am
(@brad-ott)
Posts: 6185
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might be the solution to the frequent "how are you measuring sewer inverts" question

Let’s go!!

 
Posted : 29/04/2023 8:15 am
(@dougie)
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Only good to 3 meters away...

 
Posted : 29/04/2023 8:21 pm
(@hpalmer)
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that RTK rover claims rtk capability and with L1 and L2 so with RTK, better than 3 meters.

on another note, Apple iWatch Ultra has L1 and L2.  Who knows, maybe they will include L5 in next release.  That and with PPP, you should be able to get 1 meter positioning.  With RTK and a decent antenna (and sufficient sv's) you should be able to get cm positioning.

What will Dick Tracy think of next?

 
Posted : 30/04/2023 7:00 am
(@dougie)
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better than 3 meters.

I saw one at a local chapter meeting; the scan has millimeter accuracy, up to 3 meters away.

At least that's what they told me. A friend of mine had done a demo and was returning it to the rep.

 

Your mileage may vary...

 


GIF
 
Posted : 30/04/2023 7:17 am
(@hpalmer)
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@dougie so the rtk on the instrument is pretty much worthless as is the instrument with a 3m distance limit on scanning accuracy

 
Posted : 30/04/2023 7:39 am
(@oldpacer)
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Things that make surveying look simple to the uneducated public.

Maybe they will start letting contractors use this to prepare their own as-builts. Utility as-builts and guessing the every changing submittal requirements for them are my two least favorite survey activities.

 

 
Posted : 30/04/2023 8:40 am
(@dougie)
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rtk on the instrument is pretty much worthless

 

If you're okay with it only being accurate to a couple of millimeters, x,y,and z, within 15 feet; then it's an awesome tool. I wouldn't do a 100 acre topo with it, but it's good in minimal places.

 

 

 

 
Posted : 30/04/2023 9:02 am
(@leegreen)
Posts: 2195
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I've been using Pix4dCatch (free) with only my Android cell phone to fill in gaps around the house that my drone can't see. I then take the point clouds into SCENE to align the drone data with cell data. If you have enough GCP's around the building you don't need that $10k RTK module. Here is a job I did Friday with this procedure.

Photo 1 shows drone data only.

Photo 2 shows Cell phone data only

Photo 3 shows both point clouds merge

drone
cell phone
drone and phone

 

 
Posted : 30/04/2023 9:29 am
(@leegreen)
Posts: 2195
Noble Member Customer
 

This plan view is generated from the cell phone point cloud using SCENE. It's like a modern-day

field sketch of the house that is drawn to scale.

House Fabiano(Lake Pleasant)
 
Posted : 30/04/2023 9:38 am
(@hpalmer)
Posts: 432
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@leegreen interesting.  Did not know about Pix4dcatch.

 
Posted : 30/04/2023 1:34 pm
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