26-06-2014, 11:29 AM
a seminar TOPIC on Project loon
1379092174-PROJECTLOONJAGAN.pptx (Size: 940.2 KB / Downloads: 18)
INTRODUCTION
Project loon is a fantastic invention from the team of google under the supervision of Mike Cassidy, Director of Product Management, Google[x] and Richard De Vaul.
It is a big step to facilitate the internet service to the rural area as well as the area in which the fibre optics cable creates a complexity inside the ground.
It is all about sending the balloon made up of special kind of material filled with high pressure helium gas to move beyond the troposphere above the earth to the stratosphere.
Users of the service connect to the balloon network using a special Internet antenna attached to their building
HOW LOON DESIGNED?
The balloon envelope is the name for the inflatable part of the balloon.
Project Loon’s balloon envelopes are made from sheets of polyethylene plastic and stand fifteen meters wide by twelve meters tall when fully inflated.
They are specially constructed for use in super pressure balloons, which are longer-lasting than weather balloons because they can withstand higher pressure from the air inside when the balloons reach float altitude.
When a balloon is ready to be taken out of service, gas is released from the envelope to bring the balloon down in a controlled descent. In the unlikely event a balloon drops too quickly, we deploy the parachute attached to the top of the envelope
HOW LOON MOVES?
Project Loon balloons travel around 20 km above the Earth’s surface in the stratosphere. Winds in the stratosphere are generally steady and slow-moving at between 5 and 20 mph, and each layer of wind varies in direction and magnitude. Project Loon uses software algorithms to determine where its balloons need to go, then moves each one into a layer of wind blowing in the right direction. By moving with the wind, the balloons can be arranged to form one large communication networks
HOW LOON CONNECTS ?
Each balloon can provide connectivity to a ground area about 40 km in diameter at speeds comparable to 3G
For balloon-to-balloon and balloon-to-ground communications, the balloons use antennas equip specialized radio frequency technology.Project Loon currently uses ISM bands (specifically 2.4 and 5.8 GHz bands) that are available for anyone to use.
DEVICES USED
High Altitude Balloon
Solar Panel
Trans receivers
GPS(Global Positioning System)
ISM(Industrial scientific and medical frequency band )
ISP(Internet Service Provider)
High-altitude balloon
High-altitude balloons are unmanned balloons usually filled with helium or hydrogen, that are released into the stratosphere, generally reaching between 60,000 to 120,000 feet (18 to 37 km).
The most common type of high altitude balloons are weather balloons. Other purposes include use as a platform for experiments in the upper atmosphere. Modern balloons generally contain electronic equipment such as radio transmitters, cameras, or satellite navigation systems, such as GPS receivers
Solar panel
Solar panels about the size of a card table that are just below the free-flying balloons generate enough electricity in four hours to power .
These stations are spaced about 100 km (62 mi) apart and bounce the signal to other relay balloons that send the signal back down.
This makes Internet access available to anyone in the world who has a receiver and is within range to a balloon.
Currently, the balloons communicate using unlicensed 2.4 and 5.8 GHz ISM bands.
GPS(Global positioning system)
The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
The system provides critical capabilities to military, civil and commercial users around the world. It is maintained by the United States government and is freely accessible to anyone with a GPS receiver.
WORKING
The technology designed in the project could allow countries to avoid using expensive fiber cable that would have to be installed underground to allow users to connect to the Internet.
Solar panels about the size of a card table that are just below the free-flying balloons generate enough electricity in four hours to power the transmitter for a day and beam down the Internet signal to ground stations.
Continued
These stations are spaced about 100 km (62 mi) apart and bounce the signal to other relay balloons that send the signal back down.
Winds in the the stratosphere are generally steady and slow-moving at between 5 and 20mph,
The high-altitude balloons fly around the world on the prevailing winds (mostly in a direction parallel with lines of latitude, i.e. east or west).
Project loon balloons travel around 20 Km above the earth’s surface in the stratosphere.
Each layer of wind varies in direction and magnitude. Project loon uses software algorithms to determine where its balloon needs to go.
This makes Internet access available to anyone in the world who has a receiver and is within range to a balloon. Currently, the balloons communicate using unlicensed 2.4 and 5.8 GHz ISM bands.
Google claims that the setup allows it to deliver "speeds comparable to 3G" to users.
PILOT TEST
There were 50 people in New Zealand the area around Christchurch who agreed to be a pilot tester for Project Loon.
The New Zealand farmer lived in a rural location that couldn't get broadband access to the Internet, and had used a satellite Internet service in 2009, but found that he sometimes had to pay over $1000 per month for the service.
Project loon balloons travel around 20 Km above the earth’s surface in the stratosphere.
By moving with the wind the balloon can be arranged to form one large communication network.
Google ran its first public test last weekend, in New Zealand, sending 30 balloons into the sky and offering 60 lucky volunteers 15 minutes of balloon-based Internet access. Smaller, private tests were conducted in California and possibly elsewhere.
CONCLUSION
The better and advanced way of internet has arrived. May this innovative project will grow like anything and we are eagerly waiting for experiencing it.