RC India

RC Models => Multirotors => Topic started by: nitin_dhawale on December 20, 2016, 01:51:26 PM



Title: Are multiple GPS inputs possible in multirotor's flight controller?
Post by: nitin_dhawale on December 20, 2016, 01:51:26 PM
Hi,

I have came across the link

https://www.rcgroups.com/forums/member.php?u=461648&archive=201408 (picture file attached)

a bit confusing why three GPS antennae. Is it possible to connect multiple GPS cutoffs to flight controller?


Title: Re: Are multiple GPS inputs possible in multirotor's flight controller?
Post by: Swapnil on December 20, 2016, 03:27:08 PM
They are most probably using different satellite systems (GPS, GLONASS, BeiDou and perhaps even Galileo...) for higher accuracy and redundancy. Wish GPS didn't reserve high accuracy for military applications.

As to whether it is possible, well, it certainly is. You'd need a custom 'diversity' system to forward the most accurate location data to the FC (based on the number of 'visible' satellites) or to merge all the data from the different systems for better triangulation.

What I don't understand is why someone would spend on 3 positioning systems and not put them on a decent frame.


Title: Re: Are multiple GPS inputs possible in multirotor's flight controller?
Post by: arorasoham9 on December 20, 2016, 05:49:20 PM
Nicely explained  Swapnil sir