A car company in Shanghai is launching its own new “GPS system”! There was a detail in the computer magazine c’t that I would also like for mapping:
… Geespace relies on GNSS technology (Global Navigation Satellite System), which cell phone manufacturers also use, for example. This means that accuracies of less than ten meters are common. But the Geespace satellites receive additional correction data for the GNSS systems from their ground stations and send them to the Geely cars, so that they can even determine their position with centimeter precision.
I’ve been thinking about a mapping app for on-site use for a while now, somehow 2D or 3D, at least in such a way that you overlay reality and the map-view on top of each other (augmented reality) and then move the OSM objects to where it is actually visible. You can do something like this with an iPad and an AR-Kit. The only problem is the exact position. The solution above would be the solution, however exactly it works. I was thinking of local reference transmitters. But if that works in a Chinese car, it should also work with a wiper board.
IIRC, that’s already available also in DE. D-GPS is the name?
A station (not a satellite) with a fixed and well know location receives GPS data from satellites and compares the result with its own well known location, calculates correction data and sends this over the air to the receivers. You can gain cm precision from that. Those receivers are commercially available.
As has been pointed out while this might be “newish” for in car nav, it isn’t at all for surveying, including in OSM. The main issue is that there isn’t an awful lot of use cases in which it is really useful these days (it would have been pre-2010), aka cases which are not covered by aerial imagery and at the same time have reasonable GNSS reception. But fwiw mappers have successfully used DGPS with Vespucci and likely other apps.
PS: VR mapping has also been done … and abandoned (not saying that it couldn’t be useful, it just suffers from the same issues as all the alternative mapping great ideas, good for a demo, incredibly frustrating in practice).
I do not see details about how Vespucci or other apps works with DGPS.
I wonder if one could just use a 2nd smartphone as a reference at a known point.
VR mapping has done?! I only know a VR viewer.
I would like to try it myself, as I don’t see aerial imagery satisfying me for detail mapping.
If there are existing apps and source code, it may be good to give it a new attempt.
It’s about 5 years back or so, I doubt that anybody remembers it, that should tell you something. But pls don’t let me discourage you, but things to note: OSM editors are a zero sum thing, and there is absolutely no money in it.