Sierra Wireless MP 881W, Руководство пользователя

Страница: 69 / 88

Rev 1.4 Apr.08 63
8: Sending Data to Your Network
Application
• Retrieve the Unique
Mobile Device ID
This chapter discusses how to configure the MP modem to
send GPS and I/O data to a network server. This is a simple
process, but if there are any firewalls on your network or your
service provider’s network, the data must be routed through or
around the firewall. A general discussion of some methods of
dealing with firewalls is provided.
This chapter also explains how to retrieve the Unique Mobile
Device ID from the MP modem. This is the number that
uniquely identifies each MP modem. Any application that uses
the GPS and I/O data from the MP modem requires this
number.
Configure the MP modem to
route data to a server
Note: For a full list of AT
commands and their parameters,
see the MP 3G Modems AT
Command Reference manual
(document #2130810).
The protocol that defines how MP modem data is packaged is
called MTP (Monitoring and Tracking Protocol). You can
configure MTP in 3G Watcher by selecting
Tools > Options >
MP > Monitor and Tracking
, or by using the AT command
AT!MPMTCONF
and the appropriate parameters.
The MP modem provides four independent reporting engines,
allowing data to be sent to four different destinations. You can
specify the destination IP address and port number for each
engine. This allows, for example, GPS data to be sent to one
host application, and I/O data to be sent to another.
You can also specify the values for the timers that determine
the frequency with which the data is to be sent.
Report frequency timers
Note: You must configure alarm
triggers locally on the MP
modem using either 3G Watcher
or an AT command.
The low rate timer, alert rate timer, and GPS timer control the
interval between reports from the MP modem.
The low rate timer sets the interval at which reports are sent in
the absence of any other trigger or timer. It is in minutes with a
default of five minutes.