User Guide
____________________________________________________________________________________
Confidential and Proprietary
1
10/2/2008
1
Introduction
1.1
About this Manual
Instructions on how to install the GVT-3000 are contained in this manual. Please follow
installation tips and instructions closely to avoid personal injury or damage to the GVT-
3000 .
1.2
About GSM/GPRS GVT-3000
GVT-3000 GPS Unit wirelessly transmits location, peripheral, and vehicle control data to a
data center. Location data, including speed, direction, mileage, and altitude, is provided
by an onboard GPS module/chipset. Wireless transmission is achieved using an onboard
GSM/GPRS module/chipset. A microcontroller is used to poll location and command data
at regular intervals, derive actions based on location, peripheral, and control data, and
execute those actions. GPS module, Wireless module, and microcontroller could
potentially reside in the same silicon.
Peripheral data indicates the status of the various peripherals that are connected to
and/or controlled by the unit. Peripherals include, but not limited to, door locks/un-locks ,
starter interrupt, ignition, battery, engine, panic button, and collision detector.
Firmware on the device applies intelligent filtering to overcome coverage limitations for
both GPS and GSM/GPRS networks.
Motion sensor is used to control the status of the unit, either sleep, idle, or full power,
there by controlling the amount of current the unit consumes.
Backup battery and tamper sensing GPS Antennas are primarily used to indicate loss of
Main Power and loss of GPS antenna connectivity.
An internal wireless/cellular antenna is used for easy installation.
Device communicates using SMS, TCP or UDP communication protocols. SMS and UDP are
the most common protocols used in our deployments.
Device supports Over-the-air firmware upgrade to deliver added functionality without
physically touching the device once installed.
