Object / Vehicle tracking and satellite tracking
systems make use of GPS satellite positioning
technology to record a vehicle's movements in
real-time. Tracker reports can include cars, vans
and heavy goods vehicles. The satellite vehicle
tracking system uses the GPS satellite system
through a 12 channel GPS receiver to track a
vehicle's movements, and transmits that information
in a compressed format over the GSM and GPRS
network. Fleet management and vehicle tracking
information is then made available to the user over
the Internet from the Web server.
The system consists of
three key components which are :-
Vehicle module
These are small devices containing a circuit
board, GSM/GPRS modem, GPS satellite receiver and
battery back-up housed in a variety of housings
depending on the requirement. Typically there are
three types, portable for personnel or repaid
deployment, in-vehicle fixed units and weatherproof
for construction equipment, trailers and coastal
marine. Fixed devices have an extensive power loom
that also includes a selection of inputs & outputs
that may be used for additional sensors or remote
immobilization / shutdown.
All devices are equipped with a high sensitivity
GPS, satellite, receiver that calculates the
device's position every second. This information is
stored and transmitted back to the server at
intervals, programmed to suit the customer, together
with events such as engine start & stop, excessive
speed or door open/close.
Wireless communications
The system uses GSM / GPRS to transmit data to the
server that is a highly robust service in use
globally. GPRS
(General Packet Radio Service), which is an always
on connection similar to broadband/ADSL, data can be
sent at fixed intervals and received within, on
average, 2 seconds of transmission. Should GSM
coverage be lost the device will store data, usually
for up to 4 days on a standard reporting profile,
for transmission when network coverage has been
regained. We are also working on a combined
satellite & GSM/GPRS system that will provide total
coverage across the globe.
Servers & Software
The data transmitted wirelessly is transferred to a
secure data line routed to the Web server. This data
line uses fiber-optics and has been installed to
provide resilience and fallback in case of any
unforeseen disaster.
Each status message from an asset contains
information on ignition state, position, data, time,
speed, distance covered, satellite reception and
other input/output states depending on the
configuration. This data is decoded and stored, for
6 months, and used to generate the data available in
a comprehensive range of reports. Data is backed up
daily and stored off-site.
for more information contact
us :
info@dndubai.com
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