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[gpsd-dev] 'status' field in TPV JSON to include DGPS and RTK solution i
From: |
Max Schulze |
Subject: |
[gpsd-dev] 'status' field in TPV JSON to include DGPS and RTK solution indicators |
Date: |
Tue, 14 Jun 2016 23:34:44 +0200 (CEST) |
Hey Gary,
> Where are you expecting that to be documented? Point me at the right place
> and I'll fix it.
I would have thought at http://www.catb.org/gpsd/gpsd_json.html
> /bin/bash: }par: command not found a long time, then got removed. When
> people were still using it. I'm not gonna check the logs to see who or
> when. Then it got added back because its original purpose was still
> needed, and used, by some. That tells that the GPS has valid DGPS or
> WAAS corrections in use.
Maybe you could re-introduce it and even expand a bit: when feeding NMEA data
that has been generated by RTKLIB ( RTK DGPS solutions), it would be nice to
have the status flag passed on that is in the GGA message.
So not only to have a status indicating 2=dgps, but the whole range (
http://www.gpsinformation.org/dale/nmea.htm#GGA ) :
1 Fix quality: 0 = invalid
1 = GPS fix (SPS)
2 = DGPS fix
3 = PPS fix
4 = Real Time Kinematic
5 = Float RTK
6 = estimated (dead reckoning) (2.3 feature)
7 = Manual input mode
8 = Simulation mode
[Example message to expect on RTK solutions:
$GPGGA,213112.00,5014.2558376,N,00824.0042224,E,5,11,1.0,423.369,M,48.349,M,2.0,*48
]
This would be really helpful for processing "down-the-stream", i.e. to keep
gpsd as the universal daemon in-between.
Regards,
Max