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Researchers demonstrate centimetre-level positioning using smartwatches
- cwmoore 1y agoHow can this support the panopticon of public safety?
- blurbleblurble 1y agoJust one more piece of the behavior recognition and total sensor fusion puzzle. This can also be used to train passive RF based sensing techniques to be more accurate.
- amelius 1y ago> centimetre-level precision over four hours with a stationary setup Ok, so does this really mean the smartwatch should not move for four hours?
- stavros 1y agoYes.
- bobthepanda 1y agoI mean it does demonstrate you can do it with something as small as a smartwatch
- Aaron2222 1y agoReading the paper[0], they're getting position data at 1s intervals, and ran it for 4h to show repeatable centimetre-level precision over that time period. [0]: https://link.springer.com/content/pdf/10.1007/s10291-025-01965-y.pdf https://link.springer.com/content/pdf/10.1007/s10291-025-019... (note that the results using only the internal GNSS antennas are further into the paper)
- jayd16 1y agoEven with the stationary requirement, this is pretty neat. One could imagine cheap turn-key devices that self locate and provide an accurate beacon for real time triangulation.
- sodaclean 1y agohttps://store.freeflysystems.com/products/rtk-gps-ground-station https://store.freeflysystems.com/products/rtk-gps-ground-sta... Not cheap. Theres also services like this: https://www.septentrio.com/en/learn-more/insights/gnss-corrections-demystified https://www.septentrio.com/en/learn-more/insights/gnss-corre... that offer correction information. I expect starlink to eat that industry shortly. Not sure how they'll make the strategic steps though. Mandatory location data for cell phones to talk with star-link? Wait for whatever satellite septentrio uses to EOL and offer a deal to use star-link instead?
- fsh 1y agoThe hardware is very cheap (just a GNSS receiver), but this is a low-volume product. There are robot lawnmowers that come with RTK base stations.
- petermcneeley 1y agoCheap positioning for construction projects.
- throwaway173738 1y agoPrecision is not accuracy. I wouldn’t use this on a construction project without first setting a control point.
- Cthulhu_ 1y agoIs there anything wrong with the existing techniques?
- dzink 1y agoAlso possible use cases: Drones, Drone attacks on individuals with smartwatches, tracking of dissidents, these days you have to think about all possible angles.
- nashashmi 1y agoI imagine a system where several devices broadcast their coordinates to each other, and this way each device knows how far it is from a device and approximates its location based on the distance and coordinate of the other device, then matches it with its own GPS to narrow its coordinate even further.
- sodaclean 1y agowhile researching links to back up me calling this a nothing burger, I found this: https://m.youtube.com/watch?v=twqqak3XVuY https://m.youtube.com/watch?v=twqqak3XVuY which upgrades this to Puff Piece. it gets worse- the overseeing professor mentioned here, and in the video, is the author of the paper linked in the description- from 2018. (https://link.springer.com/article/10.1007/s00190-018-1192-5 https://link.springer.com/article/10.1007/s00190-018-1192-5) See: https://www.u-blox.com/en/technologies/high-precision-positioning https://www.u-blox.com/en/technologies/high-precision-positi... for information thats not one guy stroking his... ego. Also, PPP-RTK is another keyword.
- zokier 1y agoWhat is your complaint here exactly?
- lmc 1y agoThe title is very misleading. The technique (RTK) depends on using a second receiver, not just a smartwatch on its own.
- zokier 1y agoTitle is fine. The key is the plural, smartwatches. From the actual article: > No geodetic station is involved in this study, as one of the smartwatches serves as the base station.
- lmc 1y agoAh yes, somehow I missed this :-S. Would edit my comment if I could.
- tecleandor 1y agoOh, that's interesting, I have to read it... Did they set up the smartwatch in a fixed place?
- Zufriedenheit 1y agoIs this just RTK? Which uses an extra stationary antenna and has been around for years. Or is there something new here?
- crote 1y agoThe main novelty seems to be in doing it using cheap consumer hardware, rather than specialized $10.000 professional RTK receivers. In-home centimetre-level smartwatch positioning using a Nest as RTK base station could allow for some neat applications!