IT Presentation

IT innovation------ GPSJasmine CheShirley Wan

Sunyan

Project Work Flow & Job Division

Decide a topic that we are interested

Learn the IT skills e.g. using different software to collect

data and information

Combine all the parts done before

together, as well as with more analysis

Jasmine: Finding information about History of GPSShirley: Finding “ Applications ”and “Advantages and Disadvantages ” Sunyan: Handling survey and data

Objective• How GPS work

• Discover how GPS technology changes human lives

• What are the daily life application of GPS

• What are the benefits and shortcoming

History

• The Global Positioning System (GPS) was developed by :

the U. S. Department of Defense (DOD),

Ivan Getting

the Massachusetts Institute of Technology (MIT).

• Originally consisting of 11 orbiting satellites

• the GPS--official name: NAVSTAR (Navigation System with Timing And Ranging)

• was launched by DOD in 1978 strictly

• for military use

1957 Additional inspiration for the GPS system came when the Soviet Union launched the first Sputnik

1960 The first satellite navigation system, Transit, was used by the United States Navy and was first successfully tested

1967 the U.S. Navy developed the Timation satellite which proved the ability to place accurate clocks in space, a technology the GPS system relies upon.

1970s, the ground-based Omega Navigation System, based on signal phase comparison, became the first world-wide radio navigation

system.

1978 The first experimental Block-I GPS satellite was launched in February 1978. The GPS satellites were initially manufactured by Rockwell International and are now manufactured by Lockheed Martin.

Survey

0

20

40

60

80

100

120

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Mark

s

Importance of mobile phone

When 100 is full marks, most respondents ranked the importance of mobile phone as 80 marks or above.

How GPS function?• They work on a very simple principal called

trilateration.

• GPS is really a group of 27 Earth-orbiting satellites in geostationary orbit 12,000 miles above earth

http://www.youtube.com/watch?v=DCdsGRLoH5E

Applications

Social

Telecommunication NavigationAircraft

pathTectonic analysis

Military

Navigation

Social Application

• Telecommunication: GPS is widely used in our mobile phone and computer, for example, the phone can show the routes which can arrive to the destination with Automotive navigation system

• Navigation: GPS has been adopted on some cargo in order to measure the velocity and locate the orientation.

• Aircraft path: Some data, e.g. the speed, direction

and the altitude will be recorded and reported.

• Tectonic analysis: With GPS technology, we can measure the faulting activities directly.

Military application

• Navigation: The soldier can find the object they need and gather at a specific location even though they are in the dark.

http://www.youtube.com/watch?v=DCdsGRLoH5E

Advantages• Very handy: widely applicable

• Good use on water navigation: would not obstruct the reception of signal

• Useful application on science: detect the destructed building and roads damaged

• Benefit in Business: entrepreneur can keep their eyes on the business closely

• Making map: we can modify the map easily

Disadvantages

• Possible Failures: Tall building will block the satellite signal. It may prevent you from receiving the position correctly.

• The cost is expensive: The cost of some high technology GPS with accurate locating function and updating information would be very expensive.

• Short battery life: Since this system depends on the electricity from battery, the electricity will drain after a period of time.