Siera Wireless MP555, Руководство по установке программного обеспечения

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MP 555 GPS Software Installation and Configuration Guide
42
le is
at .
(
MTP configuration
le on the
Sierra Wi
to the
•
• <ctype>
• <destip>
• <destport>
l
•
(
• <fasttmr>
(
• <gpstmr>
the
i
2130304
Note: The GPS modu
limited to NMEA GGA and
NMEA VTG messages only.
More information on NMEA
message standards is available
www.nmea.org
If the module is configured for NMEA, data is sent at five-
second intervals. The interval cannot be changed when the
module is configured for NMEA because NMEA is strictly a
reporting protocol.)
Note: The AT Command
Reference (document number
2130335) describes how to
establish a session that allows
you to send AT commands. It
also lists all other AT commands
that the modem supports. The
reference is availab
reless web site,
www.sierrawireless.com.
To set the MP 555 GPS to send MTP data to a network server,
you must issue the AT command
AT!MPMTCONF
modem. The command has these parameters:
<engid> —the reporting engine:
0—engine 1
1—engine 2
2—engine 3
3—engine 4
—the connection type:
0—the engine is unused
1—UDP connections
—the IP address of the network server.
—the port number on the network server to
which the MTP data is to be sent.
Note: The ow rate, fast rate,
and GPS timers are discussed in
the section, “Report frequency
timers” on page 39.
<lowtmr> —interval (in minutes) between reports sent by
the low rate timer. The default is five minutes.)
—interval (in seconds) between reports sent by
the high rate timer. The default is three seconds.)
—interval (in seconds) between reports sent by
the GPS timer. The default is ten seconds. (If this is sent to
0, the report frequency is “GPS driven”, as discussed in the
previous section.)
The MP 555 GPS sends MTP data to the IP address specified by
<dest p>
parameter.
To send data to the MP 555 GPS, a host application on a
network server requires the IP address of the modem.
Typically service providers do not provide a static IP address
to each device on the network. Rather the IP address is dynam­
ically assigned each time the modem registers on the CDMA
network. This means that the host application must identify
each modem by its Unique Mobile Device ID (discussed on
page 45) and capture its IP address as it registers.