Gnss - NetModule NB3720 User Manual

NB3720
User Manual for NRSW version 4.4

5.3.10. GNSS

Administration
The GNSS page lets you enable or disable the GNSS modules present in the system and can be used
to configure the daemon that can be used to share access to receivers without contention or loss of
data and to respond to queries with a format that is substantially easier to parse than the NMEA 0183
emitted directly by the GNSS device.
We are currently running the Berlios GPS daemon (version 3.15), supporting the new JSON format.
http://www.catb.org/gpsd/
Please navigate to
any clients to the daemon remotely. The position values can also be queried by the CLI and used in
SDK scripts.
Parameter
Administrative status
Operation mode
Antenna type
Accuracy
Fix frame interval
If the GNSS module does support AssistNow and the operation mode is assisted the following con-
figuration can be done:
Parameter
Primary URL
Secondary URL
Information about AssistNow: If you have a lot of devices in the field that use the
AssistNow service, please consider creating your own AssistNow token at
u-blox.com. If there are too many requests per time, the service may not work as
expected. If you have further questions, please contact our support.
Parameter
Server port
for getting more information about how to connect
GNSS Module Configuration
Enable or disable the GNSS module
The mode of operation, either standalone or assisted (for A-GPS)
The type of the connected GPS antenna, either passive or actively 3
volt powered
The GNSS receiver compares the calculated position accuracy based
on the satellite information and compares it with this accuracy thresh-
old in meters. If the calculated position accuracy is better than the
accuracy threshold, the position is reported. Adjust this parameter to
a higher threshold in case the GNSS receiver does not report a posi-
tion fix, or when it takes a long time to calculate a fix. This could be
caused when there is no clear sky view of the GNSS antenna which
is the case in tunnels, beside tall buildings, trees, and so on.
The amount of time to wait between fix attempts
GNSS Assisted GPS Configuration
The primary AssistNow URL
The secondary AssistNow URL
GNSS Server Configuration
The TCP port on which the daemon is listening for incoming connec-
tions
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http://www.