NetModule NB3000-Line-Hd, Руководство пользователя

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NB3000-Line-Hd User Manual 4.2
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. Please navigate to
http://www.catb.org/gpsd/
for getting more information about
how to connect any clients to the daemon remotely. The position values can also be queried
by the CLI and used in SDK scripts.
Parameter GNSS Module Configuration
Administrative status Enable or disable the GNSS module
Operation mode The mode of operation, either standalone or assisted (for A-
GPS)
Antenna type The type of the connected GPS antenna, either passive or ac-
tively 3 volt powered
Accuracy The desired accuracy in meters
Fix frame interval The amount of time to wait between fix attempts
Parameter GNSS Server Configuration
Server port The TCP port on which the daemon is listening for incoming
connections
Allow clients from Specifies where clients can connect from, can be either
everywhere
or from a specific network
Clients start mode Specifies how data transferal is accomplished when a client
connects. You can specify
on request
which typically requires
an
R
to be sent. Data will be sent instantly in case of
raw
mode
which will provide NMEA frames or
super-raw
which includes
the original data of the GPS receiver. If the client supports the
JSON format (i.e. newer libgps is used) the
json mode
can be
specified.
Please consider to restrict access to the server port, either by a specifying a dedicated client
network or by using a firewall rule.
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