A brief
overview of the Global Positioning System (GPS)
GPS is the most sophisticated system of pinpointing a position on earth so far
developed by man。 The idea was conceived in 1960, and was developed by
the US military。 The system was declared fully operation in 1995。
GPS is based on the principle of radio navigation, which has been in use since
the early 20th century。 Radio navigation uses a minimum of three radio
transmitter towers all broadcasting a signal at exactly the same time。 The
transmitted signals all travel at exactly the same speed, and therefore each
of these signals is detected by a receiver at a slightly different time。 A
calculation of these time differences is made by the receiver to determine how
far the receiver is from each transmitter。 With this information, the
receiver can determine it’s exact position。
Some vehicle location systems still use this method, but their usefulness is
limited to areas within range of the company’s transmitter towers。 This
method is also expensive to run, and these high costs are inevitably passed on
to customers。
The difference with GPS is that the transmitters are satellites orbiting 20,200km
above the earth。 There are 24 of these satellites, all transmitting signals,
and are free for the public to use。
All Fleetminder units contain a GPS receiver, and are able to determine their
location to an accuracy typically better than 30 meters。 The combination
of GPS and mobile phone technologies is what enables us to provide you with accurate
vehicle location with no on-going fees。
Car alarms and immobilisors are great, but let’s fact it – a determined
thief will always get around them。 And once your car’s gone – there’s
not much you can do about it except wait days or weeks for police to call you
can let you know that you can pick up whatever’s left of your car。
And then there’s the insurance to deal with。 Anyone who’s
had their car stolen can tell you that ‘fair market value’ will
leave you with much less car than you started with。
With Fleetminder, the thief will be arrested before he’s had time to even
think of trashing or stripping your car。
NO-ONGOING FEES
Fleetminder is one of the few products available that does not rely on an expensive
monitoring service。 Instead, you use your mobile phone to communicate
directly with your car。 If your car is stolen, you don’t want to
have to rely on someone else’s communications infrastructure for your car’s
protection。 With Fleetminder, you take control – and no-one’s
going on to be taking money from you every month。 The only cost is to
keep the GSM Sim card active。
SIMPLE TO USE
Fleetminder is simple to use – just call your Fleetminder’s phone
number, and it will reject your (free) call。 The unit then replies to
you via sms text message displaying location, direction, UBD map number & grid
numbers and speed of your car。 If your car is stolen, it sends you a text
message automatically.
|