WELCOME

NAME : MOHAMMMED VAKIF PROLL NO : 17

PROJECT LOON

CONTENTS

WHAT IS PROJECT LOON HISTORY THE TECHNOLOGY HOW LOON MOVES? HOW LOON IS DESIGNED HOW LOON CONNECTS? ADVANTAGES & DISADVANTAGES REFERENCES

“Two out of every three people on earth do not have internet access”

WHAT IS PROJECT LOON? Project Loon is a network of balloons traveling on the edge of space, designed to

connect people in rural and remote areas.

It is an initiative taken by Google to provide internet access all over the world.

Sending balloons to Stratosphere to deliver internet globally

HISTORY In 2008,Google considered contracting Space Data Corp, but didn’t do so.

In 2011, the unofficial development of the project began under Google X Labs.

14 June 2013, Google announced this is an official project.

16 June 2013, A pilot experiment happened in New Zealand and about 30 balloons were launched.

THE PILOT TEST Project Loon began with a pilot test in June 2013 with an experimental pilot in New

Zealand. A small group of Project Loon pioneers will test the technology in Christchurch and Canterbury.

30 balloons, launched from New Zealand’s South Island.

The experience of these pilot testers will be used to refine the technology and shape the next phase of Project Loon.

THE TECHNOLOGY

The signal bounces from balloon to balloon, then to the global Internet back on Earth.

THE TECHNOLOGY

a) SOLAR AND BATTERY TECHNOLOGY:

Loon use 600 watt battery, charged by solar panels. These large ,extra light photovoltaic Cells keeps the weight of the balloon less so that they can run for long missions without landing.

b) ALGORITHMIC CONTROL:

GoogleX has developed Software that moves the balloon up or down to catch wind current based on their direction to more or less keep the balloon in one area.

STRATOSPHERE Situated between 10 km and 60 km altitude on the edge of space. Air pressure is 1% of that at sea level. Thinner atmosphere offers less protection from the UV radiation and temperature

caused by the sun’s rays.

Project Loon balloons travel approximately 20km above the Earth’s surface in the stratosphere.

STRATOSPHERRE

•LAYERS OF WIND•DIFFERENT DIRECTION•DIFFERENT SPEED

HOW LOON IS DESIGNED

ENVELOPE Project Loon’s balloon envelopes are made from sheets of polyethylene plastic

and stand 15 meters wide by 12 meters tall when fully inflated. A parachute attached to the top of the envelope allows for a controlled descent

and landing whenever a balloon is ready to be taken out of service.

SOLAR PANELS

SOLAR PANELS Each unit’s electronics are powered by an array of solar panels that sits between

the envelope and the hardware.

In full sun, these panels produce 100 Watts of power - enough to keep the unit running while also charging a battery for use at night.

By moving with the wind and charging in the sun, Project Loon is able to power itself using only renewable energy sources.

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EQUIPMENT

EQUIPMENT A small box containing the balloon’s electronic equipment .

This box contains circuit boards that control the system .

Radio antennas to communicate with other balloons and with Internet antennas on the ground .

And batteries to store solar power so the balloons can operate during the night .

HOW LOON CONNECTS Each balloon can provide connectivity to a ground area about 40 km in diameter at

speeds comparable to 3G. Each balloon is equipped with a GPS for tracking its location

a user with the specialized antenna sends signals via a radio frequency over ISM bands to a balloon close to him.

The balloon sends the signals to neighbouring balloons.

Then the signals reach the balloon which is connected to the local Internet .

HOW LOON CONNECTS

HOW LOON CONNECTS Three radio transceivers. balloon-to-balloon communications. balloon-to-ground communication. third for backup. The balloons use antennas equipped with specialized radio

frequency technology. Project Loon currently uses ISM bands that are available for anyone to use.

ADVANTAGES Easy to use.

3G Speed.

Increasing Internet usage.

Solar powered, Above all weather, charge lithium packs for night.

DISADVANTAGES

Maintenance.

Balloon can work for 100 days, or 3 full trips around the earth

References :http://www.google.com/loon/

http://en.Wikipedia.org/wiki/projectloon

http://www.youtube.com/googleloon