NavSpark: Arduino Compatible with GPS GNSS Receiver
indiegogo.com
NavSpark: Arduino Compatible with GPS GNSS Receiver
1–10 of 43 posts
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#2I don't see any reference to "centimeter accurate" in this description.
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#3Positioning is a really huge concern in robotics; how do you know where your robot is? Just because you told it to move doesn't mean it did, or that it got there. So that's why this is really cool. Millimeter accuracy would be better, I don't even know if that's possible with GPS at all.
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#4is centimeter accuracy even possible with GPS? http://www.gps.gov/systems/augmentations/ cites 10-15 centimeter accuracy under their NDGPS modernization efforts, but don't even say they've gotten there yet.
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#5is centimeter accuracy even possible with GPS? http://www.gps.gov/systems/augmentations/ cites 10-15 centimeter accuracy under their NDGPS modernization efforts, but don't even say they've gotten there yet.
It's not possible, even with pretty ideal conditions.
Edit: I excluded RTK stuff in that comment :)
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#6You can already get a $20 GPS module, Arduino compatible. Just take any random GPS mouse, they will be talking NMEA over some serial line.
Of course you don't get "centimeter accurate", but that's a lie anyway, so nothing lost.
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#7I don't see any reference to "centimeter accurate" in this description.
The datasheet for the Venus838FLPx used on it actually specifies 2.5m accuracy.
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#8Positioning is a really huge concern in robotics; how do you know where your robot is? Just because you told it to move doesn't mean it did, or that it got there. So that's why this is really cool. Millimeter accuracy would be better, I don't even know if that's possible with GPS at all.
It isn't possible in real-time, but surveying grade GPS receivers can approach that level of accuracy with long collection times and post-processing.
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#9is centimeter accuracy even possible with GPS? http://www.gps.gov/systems/augmentations/ cites 10-15 centimeter accuracy under their NDGPS modernization efforts, but don't even say they've gotten there yet.
It's not possible, even with pretty ideal conditions. Edit: I excluded RTK stuff in that comment :)
It is, using RTK (real time kinematic) and 2 different receivers: http://www.kickstarter.com/projects/swiftnav/piksi-the-rtk-g...
Re: NavSpark: Arduino Compatible with GPS GNSS Receiver
#10is centimeter accuracy even possible with GPS? http://www.gps.gov/systems/augmentations/ cites 10-15 centimeter accuracy under their NDGPS modernization efforts, but don't even say they've gotten there yet.
It's not possible, even with pretty ideal conditions. Edit: I excluded RTK stuff in that comment :)
Welll.....that's not strictly true. If you've got an environment free of multipath, you use differential or WAAS-enabled GPS receivers, you can get pretty good accuracy.
Source: http://www.oc.nps.edu/oc2902w/gps/gpsacc.html
Please note that all of these things depend on many factors and can be considered nearly "heroic" measures when it comes to position accuracy, but the Navy has historically been pretty damn concerned about knowing where their assets are and is somewhat obsessive about error-factors where that's concerned.