Ppt Local Tracking and Gps 101016101959 Phpapp01

8/2/2019 Ppt Local Tracking and Gps 101016101959 Phpapp01

http://slidepdf.com/reader/full/ppt-local-tracking-and-gps-101016101959-phpapp01 1/25

LOCATION TRACKING (LT) &

GLOBAL POSITIONING SYSTEMS (GPS)



AGENDA

Introduction to LT & GPS

Necessity of technology

Architecture and design

Functionality

Utilities and Applications

Drawbacks of GPS





NECESSITY OF TECHNOLOGY

Department of Defense were facing challenges to increasesecurity of the US.

During emergencies we require immediate tracking ofimportant people.

Logistic companies need tracing of their fleet for reliableoperations.

Personal valuables vehicles and goods when stolen or lostwere not easier to locate.



Architecture and design

CONTROL USER

SPACE

GPS

Three major segments



SPACE SEGMENT



SPACE SEGMENT

The space segment consists of 27 Earth-orbiting satellites (24 inoperation and three extras in case one fails).

Each in its own orbit 20,200 kilometers above the Earth.

Orbit the earth in 12 hours.

There are six orbital planes with nominally four satellites in each,equally spaced (60 degrees apart).

This constellation provides the user with between five to eightsatellites visible (with respect to communication) from any pointon the earth.

http://electronics.howstuffworks.com/satellite.htm

http://electronics.howstuffworks.com/satellite.htm



CONTROL SEGMENT



CONTROL SEGMENT

Master control

Station

Monitor

station

Monitor

station

Monitorstation

Monitor

station

HAWAII

KWAJALEIN

DIEGO GARCIA

ASCENSION ISLAND

COLORADO



CONTROL SEGMENT

The Control Segment consists of a system of tracking stationslocated around the world.

One Master Control station and four monitor stations.

The Master Control unit, located at Schriever Air Force Base inColorado, is responsible for overall management of the remotemonitoring and transmission sites.

The 4 Monitor Stations are unmanned stations located around theworld (Hawaii and Kawajalein in the Pacific Ocean; Diego Garcia in

the Indian Ocean; Ascension Island in the Atlantic Ocean. Theytrack up to 11 satellites twice a day.

http://www.schriever.af.mil/

http://www.schriever.af.mil/



USER SEGMENT



USER SEGMENT

The user segment consists of GPS-receivers,located in cars, planes or even in GPS collars forwildlife.

They can be as small as a mobile phone.

Biosensor

Handheld



FUNCTIONALITY

GPS receiver has to know two things:

The location of at least three satellites above you.

The distance between you and each of those satellites

A GPS receiver's job is to locate three or more GPS satellites,figure out the distance to each, and use this information to deduce

its own location.

This operation is based on a simple mathematical principle calledtrilateration.



EXPLANATION (Trilateration)

Satellite 1

100 km

Satellite 1 detect the receiver with in the radius of 100 km






Satellite 1

100 km

Satellite 3 detect the receiver with in the radius of 50 km

200 km

Satellite 2

50 km

Satellite 3




Satellite 1

100 km

The intersection point of these three circles will be the exact location of Target

200 km

Satellite 2

50 km

Satellite 3





Measuring Distance Explanation

The receiver and satellite both need clocks that can besynchronized down to the nanosecond.

For best synchronization Atomic clocks are required at both ends.

But atomic clocks cost somewhere between $50,000 and $100,000,which makes them a just a bit too expensive for everydayconsumer use.

The Global Positioning System has a clever, effective solution tothis problem. Every satellite contains an expensive atomic clock,but the receiver itself uses an ordinary quartz clock, which itconstantly resets.



UTILITES & APPLICATION

Vehicle Fleet Tracking

GPS Single Vehicle Tracking

GPS Data Logging

Real Time Tracking



UTILITES & APPLICATION



Vehicle Tracking



Real Time Vehicle Tracking





Thank You

Ppt Local Tracking and Gps 101016101959 Phpapp01

Documents