Power-point presentation on Google Loon

1. Google balloon
(project loon)
Internet access from balloon network

2. Introdution
• Many of us think of the Internet as a global
community.
• But two-thirds of the world’s population does
not yet have Internet access.
• Solution:Balloon powered internet
• Fastest, easier and cheaper way .

3. Contents
1.What is Project Loon?
2.History .
3.The Technology.
4.Loons Antennas.
5.Questions related to loon.
6.Challenges.
7.Conclusion.

4. What is Project Loon?
• Internet access for those areas of the earth
where regular Internet isn’t a good option.
• It is a global network of high altitude balloons.
• Internet access comparable to 3G networks
• Stay aloft for 100+ days at a time far longer
than typical weather balloons.

5. • They are steerable and entirely solar powered.
• Uses wind data from the National Oceanic and
Atmospheric Administration (NOAA).
• Helps to cover gaps.
• Concept :create a fleet of atmospheric satellites
that can talk to each other and to the ground.

6. • Rich DeVaul, chief technical architect.
• Mike Cassidy, a project leader
• Cyrus Behroozi, a networking and
telecommunication lead.

7. History
• In 2008,Google considered contracting Space Data
Corp,but didn’t do so.
• 2011, the unofficial development of the project began
under incubation in Google X.
• 16 June 2013,Google began a pilot experiment in new
zealand.
• In May-June 2014 Google tested its balloon powered
internet access venture in Piaui Brazil.

8. The Technology: How Loon moves?
*Travel approximately
20 km above the
Earth’s surface in the
stratosphere.

9. • Winds in the stratosphere
are stratified.
• Each layer of wind varies in
speed and direction.
• Uses software algorithms
to determine where its
balloons need to go
• Form one large
communications network.

10. Stratosphere
•
• Engineering challenges:
• air pressure is 1% that at sea level
• This thin atmosphere offers less protection
from UV radiation
• Temperature can reach as low as -80°C.
• Advantages
• Steady winds
• Above weather events, wildlife, and airplanes.

11. The Technology:How Loon connects?

12. • Provide connectivity to a
ground area about 40 km
in diameter
• Project Loon uses ISM
bands (Specifically 2.4
and 5.8 GHz bands).
• Each balloon is equipped
with GPS for tracking it’s
location.

13. The Technology :How Loon is designed
E

14. ENVELOPE
*The inflatable part of the
balloon ,of Helium
*Material: Sheets of
polyethylene plastic..
*Dimensions: fifteen meters
wide by twelve meters tall
when fully inflated
.

16. Solar panels
• It uses high efficiency
monocrystalline solar
cells.
• The panels produce
approximately 100 Watts
of power in full sun.

17. Electronics
• A small box (10 kg)
• circuit boards that
control the system
• radio antennas
• lithium ion batteries

19. Loon’s Antenna
• Main components inside
the shell:
-the radio
-the antenna
-Reflector
• Two antennas
• Dual polarized antennas

20. Equipment Failure in air?
• Gas is released from the envelope to bring the
balloon down to Earth in a controlled descent.
• In the unlikely event that a balloon drops too
quickly, a parachute attached to the top of the
envelope is deployed

21. How does cold effect Loon battery?
• lithium ion batteries don't do very well in the
cold.
• Whole system is insulted to reflect and trap
heat that coming off electronics.
• Multi-layer insulation is used.

22. Challenges
• Balloon control:
• Balloon life:
• Signal strength:
• Wi-Fi connectivity:
• Flight control.
• Coverage area:

23. Conclusion
• This project is still experimental.
• The project uses high-altitude balloons placed in
the stratosphere
• Connect to the balloon network using a special
Internet antenna .
• Google believes it will be a feasible ,cost-effective
and reliable project.

24. References
• http://www.google.co.in/loon/
• http://en.wikipedia.org/wiki/Project_Loon
• http://my.umbc.edu/groups/ieee/media/726
• http://www.youtube.com/user/ProjectLoon

25. Thank You

26. Any Questions??