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How GPS Works : GPS Machine Control : GPS Benefits : GPS Costs & Parts

GPS Machine Control Home

GPS Info:
What is GPS
How GPS Works
GPS Systems Accuracy
- US GPS
- Soviet GLONASS
- EU Galileo
- Why GPS, GLONASS & Galileo

Machine Control GPS:
How GPS Machine Control Works
- Base Stations intro
- Radio Base Stations
- GPS and RTK accuracy
- GPS + Laser = MM Accuracy
- GPS + Cell = 1200+ Sq Miles
- GPS on Machines
- GPS Control Boxes/Computers
- GPS Automate Vs. Indicate

GPS System Benefits:
GPS Machine Control Benefits
- Billing Controls
- Data and Management
- Job Management
- Move Dirt 1 Time!
- Many Machines

GPS Parts, Prices, and More:
GPS Machine Control Parts & Cost
- Pricing Automate vs Indicate
- GPS for Graders
- GPS for Dozers
- GPS for Blades
- GPS for Scrapers
- GPS for Excavators

Informative Grade Sites:
AccurateGrade.com
- Precision Grading Practices

LowCostMachineControl.com
- Laser Machine Systems

Sponsors:
Rocky Mtn Lasers
Construction Lasers

Construction Directory

What is GPS?

GPS short for Global Positioning System is a group of satellites orbiting approximately 11,000 miles above the earth. Each satellite sends out a radio signal at a known wavelength and time which is so precise that the distance to each satellite can be measured to less than 1/16 of an inch!

Okay, so we know where the satellite is. What good is that when you want to know where you (or your equipment) are located on Earth? Well, if you can receive signals from at least four satellites at the same time, then software can measure the distance to each one and accurately calculate where you are. The math is based on triangulation and is very fast.

Now most folks don't know it, but there are 2 sets of satellites which can be utilized for positioning and there may soon be 3

GPS is the term used to describe the American Constellation of about 24 Global Positioning Satellites owned by the U.S. military.
The Soviet Union, and now the Russian government maintain a similar system in place called GLONASS consisting of more than a dozen satellites. The Soviet Military maintains the fleet of satellites.
In the last 3 years, the European Union has made a foray into the positioning satellite business. Click here for more.

Together, these two systems, maybe a third, create the Global Navigation Satellite System (GNSS).

Even though the primary purposes for both the Soviet and American global satellite systems was military guidance the system’s benefit for everyday purposes soon became obvious and was therefore released to the public*.

· Companies can pinpoint the location of their delivery trucks;
· Boat owners can navigate with the comfort of knowing their exact position at any given moment; and
· A husband will never have to ask for directions and his wife will never have to read a map again with a GPS-equipped automobile.

Because of the tremendous economic and security advantages, both US and Russian governments decided to allow civilian use of the satellite signals. Today, anybody can use the information transmitted by the Global Navigation Satellite Systems.*

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* GPS Satellites do not have their error frequency decoded. This is for national security purposes and keeps single handheld GPS receivers from being accurate within a foot.

GPS and Machine Control © 2007 Design by:Broomfield Designers
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