[time-nuts] Small time server for mobile use.

David J Taylor david-taylor at blueyonder.co.uk
Sat May 30 06:53:41 EDT 2015


Hi sorry for a possibly OT post.
Has anyone had practical experience with small commercially available time 
servers / ntp servers suitable for mobile  use in a vehicle.

The use case is I am in need of an accurate (ie.  within 100 ms) time source 
for several pc's in moving vehicle.    Being able to run directly off a 13.8 
or 28 VDC  source would be a major plus but AC power is also available.

Hold over if there are gaps in GPS coverage is also a major plus.

We already have a GPS with a 1 pps output, but an integrated box with it's 
own GPS would be best.

Yes I am aware I could feed a 1 pps signal into a laptop and use that as a 
time server and I may end up going that route.

There is a small Ethernet LAN in the vehicle.  The pc's currently get their 
time via a wireless connection to various NTP servers.   I need to be able 
to ensure accurate time on the PC's if there is no wireless coverage.


This is for a one off project so piecing together various parts is an option 
but a single box COTS solution would be nice.  I've found a few candidates 
via web searches but would welcome any feed back.

Thanks in advance

Mark Spencer
_______________________________________________


Raspberry Pi perhaps?

  http://www.satsignal.eu/ntp/Raspberry-Pi-quickstart.html

Cheers,
David
-- 
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor at blueyonder.co.uk 



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