I use a combination Total Station and GPS to check shots when possible. The problem with using a GNSS receiver, every shot has a plus and minus tolerance. So say you have elevation thats 50' on the dot. The GPS might measure 50.15' or 49.85' giving you a possible gap of 0.3 in your vertical measurements. So i'll average one GPS shot and shoot as many check shots with the TS I can in order to maintain good horizonal and vertical throughout the site
The Resepi with the Hensai X32 is only around $30K and definitely not 50K for the sensor. Most lidar especially the Resepi line have GPS that you attach to the drone via a gopro mount, you have to use a base but they can get corrections for RTK or do PPK. Also drones with a 10KG weight limit like the Carlson CRD1 do have RTK.
I like your video providing precise data. BTW, I have emailed you to receive information and learn whether we may have a video conference. Thanks and keep going like this :)
Hi Is the Phantom Rtk camera good for mapping? Do I need to plan a double task to get a clean ortho mosaic without shadows? What should the camera angle be
@@SteelCityDrones can a mini 4 pro attain this? ... and what software is best for this.... Not really for mapping but old buildings for pre construction and castles here in Europe
@@davidmaly5464. Mini 4 is not a mapping drone it is good for taking pictures for various applications. It’s really far from ideal but it can produce decent pics.
Soooo how do you get survey accurate ?? 350 RTK - L2 and Control points ?? Do i need NTRIP ? How many control points does it take per acre to verify ??
Equipment wise you can use the Mavic 3 Enterprise E version with RTK (DRTK2 or NTRIP) or the M350 with P1 camera. Number of control points varies a lot, many factors to consider.
I realize that as you are not the first I’ve heard say this phrase. A mathematician, data analyst, etc will ask a similar question as it makes little sense to be so verbose to come to this conclusion - thus my George Carlin comment. The good thing is it’s all the same in the end (unless you want 3cm, then it’s 1.18” :)) Great channel and thanks for the quick reply to a nonsensical comment to begin with!
Fair enough - but begs the question, why not just use a base 10 system if one exists already? Science fields do, medical fields too. Another question I’ll have for the pearly gates!!
Very informative and useful video. Thank you for crawling down that rabbit hole!
I use a combination Total Station and GPS to check shots when possible. The problem with using a GNSS receiver, every shot has a plus and minus tolerance. So say you have elevation thats 50' on the dot. The GPS might measure 50.15' or 49.85' giving you a possible gap of 0.3 in your vertical measurements. So i'll average one GPS shot and shoot as many check shots with the TS I can in order to maintain good horizonal and vertical throughout the site
The Resepi with the Hensai X32 is only around $30K and definitely not 50K for the sensor. Most lidar especially the Resepi line have GPS that you attach to the drone via a gopro mount, you have to use a base but they can get corrections for RTK or do PPK. Also drones with a 10KG weight limit like the Carlson CRD1 do have RTK.
I like your video providing precise data. BTW, I have emailed you to receive information and learn whether we may have a video conference. Thanks and keep going like this :)
Hi
Is the Phantom Rtk camera good for mapping?
Do I need to plan a double task to get a clean ortho mosaic without shadows?
What should the camera angle be
Yes the P4RTK is a good mapping drone.
So what kind of accuracy can photogrammetry attain if we have known control points that we can rotate and shift the model to?
One tenth of a foot.
@@SteelCityDrones can a mini 4 pro attain this? ... and what software is best for this.... Not really for mapping but old buildings for pre construction and castles here in Europe
@@davidmaly5464. Mini 4 is not a mapping drone it is good for taking pictures for various applications. It’s really far from ideal but it can produce decent pics.
Soooo how do you get survey accurate ??
350 RTK - L2 and Control points ?? Do i need NTRIP ? How many control points does it take per acre to verify ??
Equipment wise you can use the Mavic 3 Enterprise E version with RTK (DRTK2 or NTRIP) or the M350 with P1 camera. Number of control points varies a lot, many factors to consider.
Lidar would be helpful for night time environment
I want the same tee-shirt.
Why do we say accuracy within 1/10th of a foot instead of 1.2”? Sounds like a George Carlin routine 😂
You will never hear a professional say 1.2 inches.
I realize that as you are not the first I’ve heard say this phrase. A mathematician, data analyst, etc will ask a similar question as it makes little sense to be so verbose to come to this conclusion - thus my George Carlin comment. The good thing is it’s all the same in the end (unless you want 3cm, then it’s 1.18” :))
Great channel and thanks for the quick reply to a nonsensical comment to begin with!
Because in the USA, surveying is done in decimal feet not feet and inches. ie: 15.25' not 15'-3".
Fair enough - but begs the question, why not just use a base 10 system if one exists already? Science fields do, medical fields too. Another question I’ll have for the pearly gates!!