46 System Feature Overview
April 2011 68007024085
2.4.3 Location Services
The MOTOTRBO location feature allows a dispatcher to determine the current location of a radio
on a display map. The dispatcher can obtain the radio’s location alone (latitude/longitude) or the
location combined with other information about the environment (horizontal speed, direction, etc.)
that allows value-added services, such as tracking of resources.
MOTOTRBO systems enable location services via two complementary functions. First, the
MOTOTRBO mobile and portable radio portfolio includes models that are equipped with a built-in
GPS receiver. The acquisition of location data is done by a GPS receiver inside the radio and is
dependent on the GPS receiver receiving accurate signals from the earth-orbiting Global
Positioning System (GPS) satellites. However, the GPS receiver may not work well indoors or in
environments where the sky is largely obscured. Using the integrated data services capability of
the MOTOTRBO system, GPS equipped mobiles and portables are able to transmit their location
coordinates, over the radio system, to a receiving application that displays the radios’ geographic
locations on a high resolution map. This third
party receiving application is the second part of the
system.
MOTOTRBO provides a location interface to third
party location services applications. For more
information regarding third- party applications, please see “Third Party Application Partner
Program” on page 129.
Figure 2-9 Location Services
Fixed Clients (Dispatcher)
MOTOTRBO Location Client
Fixed Clients (Dispatcher)
MOTOTRBO Location Client
GPS Radios
GPS Radios
GPS RadiosGPS Radios
GPS RadiosGPS Radios
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
LAN LAN LAN
Control Stations
Application Server
• Presence Notifier
• Location Server
• Location Dispatch
Control Stations Control Stations Control Stations
Application Server
• Presence Notifier
• Location Server
• Location Dispatch
Application Server
• Presence Notifier
• Location Server
• Location Dispatch
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