Find Known Locations for RTK and GCPs
Ғылым және технология
When placing your base station, whether for setting GCPs or for use in RTK/PPK, you need to place it on a known location - something that you absolutely, positively, know where it is with high accuracy.
But...how do you do that?
There are lots of ways but, fortunately for us, the NGS has placed markers around the country. Here we cover how to find some of those!
00:00 Introduction
00:30 Options for finding known points
01:20 Using the NGS map
01:45 Using the NGS map on your phone
02:00 Using the NGS map on a PC
02:30 Finding locations near you
03::00 Filtering to find ones of interest
03:20 Datasheet view
03:50 Description of location
04:00 Driving to the the location
04:45 Found it!
05:00 Not always easy
Avios Media offers drone automation training, and video production for Commercial Real Estate (CRE) and Construction Projects
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Barry@aviosaerialmedia.com
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Пікірлер: 5
Thanks... Very Informative. In my area my nearest geo marker is a couple miles away from where I need to fly. I'd need an armed guard to protect my base station if I set it up over the marker! Other issue typically is there is a lot of tree cover that grew up over these old markers. OK for land surveyors but not so good for aerial surveying. As a work around I carry a chainsaw. Always be resourceful! Keep up the great videos Barry!
@aviosmedia
Ай бұрын
Agreed. A lot of these markers are super old and not in ideal locations. The demo one was on someone's path!
Really interesting! I am based in the UK so hunted around for a similar resource data set. I have found the GeoIndex - British Geological Survey but not clear if there is a relevant data set to overlay for such markers shown in your video in the USA (but in the UK). I'd welcome your thoughts!
@MarkElliottMCIM
Ай бұрын
BGS Portal - UK : mapapps2.bgs.ac.uk/geoindex/home.html
@aviosmedia
Ай бұрын
I wish I knew. That said, the UK is one of the most mapped places in the world (thanks to the wonderful ordinance survey maps) and so I would be surprised if these didn't exist. Try searching for trig pillar and see what you come up with !