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GPS:APPLICATION TO DISTRIBUTED SYSTEM

PRESENTED BY:-ANKITA SINGH

WHAT IS GPS?

BASIC CONCEPT

HOW IT WORKS?

GPS BASED DISTRIBUTED SYSTEM

CONTENT

The Global Positioning System (GPS)

is a space-based radio navigation system

First launch -> February 1978

It is a global navigation satellite system that provides :-

Geo-location

Time information to a GPS receiver

Mainly use for clock syncronisation, navigation ,map makingand surveying purpose

WHAT IS GPS?

GPS made up of a network of a minimum of 24 satellites

Its concept is based on time and the known position ofspecialized satellites.

The satellites carry very stable atomic clocks that aresynchronized.

Any drift from true time maintained on the ground is correcteddaily.

BASIC CONCEPT

HOW IT WORKS?

To calculate your 2-D position (latitude and longitude)

GPS receiver must be locked on to the signal of at least 3 satellites.

To calculate 3-D position (latitude, longitude and altitude).

GPS receiver require signals from 4 or more

Conti…

GPS BASED DISTRIBUTED SYSTEM

For GPS clock synchronization:-

GPS signal is received

processed by a local master clock, time server, or

primary reference

passed on to "slaves" and other devices,

systems, or networks

GPS clock synchronization eliminates the need for manual clock setting

events can be correlated even when they are time-stamped by different clocks

ALSO HELPS IN

Resource Location

Handoffs in Wireless Networks

Email Delivery Based on Geographic Location

Peer-to-peer Routing with Limited Range Receivers

Features