Gps Vehicle Tracking By Fixed Or Moving Satellites

The basis of realtime tracking of a vehicles location has relied on being connected to a mobile network

. However, reception may be severely inadequate in certain areas, particularly when in a different country, if a companys central server uses a mobile phone network (GSM) to pick up the en-route data.

Today, it is recognised that the most highly efficient system that can be used is GPS vehicle tracking or Satellite Communications, which provides a far wider and responsive geographic reception.

A GPS Vehicle Tracking solution offers transportation managers with comprehensive data which ensures safe, secure and faster on- time delivery services. From SMEs to large scale fleet, utilising commercial vehicle tracking is now an essential management tool.

The GPS (Global Positioning System) was first called the Navstar Global Positioning System, when the concept for an accurate and foolproof satellite system was developed at the Pentagon in 1973. The first GPS satellite was launched in 1978 and by the mid-1990s, 24 orbiting satellites were in full operation, continuously transmitting radio signals.

Continuous tracking of a vehicles exact location along the delivery route is by an installed GPS receiver sending the data back to a companys operational centre. The GPS receiver locks on to three satellite signals and then calculates latitude, longitude and altitude by measuring the tiny time difference between signal sent and received from all three satellites to accurately plot the exact position.

There are two types of satellites in operation -Geostationary and Non Geostationary - which both have positive and negative effects.

Geostationary

At present there are around 5 or 6 key Geostationary satellites strategically positioned at a fixed height of about 36,000 km above the earth where they rotate at the same speed as the earth rotates around its axis. By remaining stationary above a fixed point on the earth, which is normally directly overhead of the equator, they can repeatedly scan the same points on the earth beneath them.

Polar orbiting satellites scan different areas at relatively infrequent periods, moving rapidly, and have a much lower orbit. Generally, Fleet GPS tracking will lock on to high orbit Geostationary satellites systems and as a consequence, always require a large amount of power.

Furthermore, Geostationary systems are affected by a shadowing effect from stationary objects such as tall buildings or mountain ranges

Non Geostationary

A non-geostationary satellite is not fixed to a position relative to the Earth and is in a low earth orbit. As a result, Vehicle tracking devices who use Non Geostationary networks require far less power although this can also lead to a restricted function.

by: i4ceWriter

POST COMMENT

Japanese Used Car Auction - How To Join Online International Ship Voyage You'll Require A Drivers License Explore The Gold Beaches In A Gold Coast Car Hire Get Your Car Loan On Credit With Ease Finance Used Cars Manhattan Real Estate Mogul, Elie Hirschfeld, Alleviates Parking Woes With Www.park.com Fixing That Cranky Garage Door Yourself Experience A Colorado Family Vacation Private Cars Myrtle Beach Condo Rentals For A Luxurious Yet An Affordable Stay Disadvantages And Advantages Of Large Car Subwoofers Affordable Granite Counter Options. Be The Part Of Adventurous And Historical Vacations