How
have GPS Trackers changed trucking?
Satellite controlled devices are quickly
becoming a standard piece of kit in trucks all over the world, if you work for
one of the larger trucking companies the chances are they are using satellites
to keep an eye on you and keep you safe, even if you work for yourself using
satellites for navigation can make a days work a lot easier. RAM GPS Trackers are a British company that
install a lot of these fleet
management devices and have written a brief explanation on how these
devices work.
The
origins of GPS
Like a lot of modern technology GPS has
it’s origins in the U.S. Military the satellites that are used to help navigate
and track your truck were originally designed to guide missiles and smart
bombs. Using satellites has completely
changed the nature of warfare; during WWII bombs dropped from a high altitude
could land over a half a mile away from their target and still be counted as a
hit. Now however missiles and bombs are
guided by satellites and are expected to land within meters of the desired
target. This means it’s not only
possible to hit individual buildings but sometimes isolated rooms of
buildings. The result is that civilian
casualties can be minimised and fighting can be a lot cleaner.
As with a lot of technologies as GPS has
developed domestic and business uses have been found for it prices have fallen
and satnavs have become available not just to professional drivers but also to
individuals.
How
does it work?
There are two kinds of tracking systems,
‘active’ and ‘passive’ trackers. If your
trucks location can be monitored by your company or even your family online
your system will be using active tracking, if you just have a satnav device
that helps you determine your location it will most likely be using passive
tracking.
The technology behind the two tracking
systems is essentially the same. The
device in your vehicle searches the skies for signals being broadcast from
navigational satellites orbiting the earth.
Your devices are able to work out exactly how far away it is from the
satellite by calculating the time taken for the signal to reach you. As long as the device has been able to read
three or more signals it is able to triangulate your position and give an
accurate reading of where you are. If
the device monitors how quickly your position changes it is also able to
calculate the direction and velocity that you are travelling at.
There are twenty seven navigational
satellite currently orbiting the earth (each weighing between three and four
thousand pounds!), twenty four of these need to be operational at all times to
ensure that the whole planet has satellite coverage, the remaining three are on
standby ready to activate instantly if something should happen to the others ensuring
that the whole planet can always be covered.
Passive
tracking
Passive tracking devices are most commonly
used for navigation, after calculating your position the device can compare it
to internally stored maps and tell you exactly where you are. It can then use its software to work out the
best route to get to a selected location and give you directions. Other uses of passive tracking include geo
tagging photos, or offering you location based advertising on your cell phone.
Active
tracking
Active tracking is where your position is
then uploaded to the internet using a GPRS connection. This is the same connection that mobile
phones use, so it will only work if there is network reception. Once your position is uploaded to the
internet anyone who has permission to access this information can see exactly
where you are and exactly what speed you’re travelling at. This is useful for large trucking companies
who want to see exactly where there assets are allowing them to check they are
safe. Some delivery companies use this
information to quickly find out who their closest asset is to a pick up. Families of truck drivers away from home for
prolonged periods of time are often also able to access this information to
keep track of their loved ones progress and check they are ok easily. Outside of the trucking industry this
technology is also very useful to the emergency services that can quickly send
the closest response team to an incident and easily track their progress.
The
future of GPS trackers
The price and sophistication of this
technology are constantly improving, and new innovations seem to always be
around the corner. The latest cell
phones can already use GPS trackers to completely change their behaviour depending
on where you are but what are the next changes likely to be for truckers? Well Google have just patented technology
that allows a vehicle to drive its self using satellite navigation, the self
drive car has been a fantasy for years but GPS trackers means it might not be
too far from reality. What could this
mean for the trucking industry?