Project Loon is a research and development project being developed by X (formerly Google X) with the mission of providing Internet access to rural and remote areas. The project uses high-altitude balloons placed in the stratosphere at an altitude of about 18 km (11 mi) to create an aerial wireless network with up to 4G-LTE speeds. It was named Project Loon, since even Google itself found the idea of providing Internet access to the remaining 5 billion population unprecedented and "loony".
The balloons are maneuvered by adjusting their altitude in the stratosphere to float to a wind layer after identifying the wind layer with the desired speed and direction using wind data from the National Oceanic and Atmospheric Administration (NOAA). Users of the service connect to the balloon network using a special Internet antenna attached to their building. The signal travels through the balloon network from balloon to balloon, then to a ground-based station connected to an Internet service provider (ISP), then onto the global Internet. The system aims to bring Internet access to remote and rural areas poorly served by existing provisions, and to improve communication during natural disasters to affected regions. Key people involved in the project include Rich DeVaul, chief technical architect, who is also an expert on wearable technology; Mike Cassidy, a project leader; and Cyrus Behroozi, a networking and telecommunication lead.
The balloons use patch antennas - which are directional antennas - to transmit signals to ground stations or LTE users. Some smartphones with Google SIM cards can use Google Internet services. The whole infrastructure is based on LTE; the eNodeB component (the equivalent of the "base station" that talks directly to handsets) is carried in the balloon.
Video Project Loon
Timeline
In 2008, Google considered contracting with or acquiring Space Data Corp., a company that sends balloons carrying small base stations about 20 mi (32 km) up in the air for providing connectivity to truckers and oil companies in the southern United States, but didn't do so.
Unofficial development on the project began in 2011 under incubation in Google X with a series of trial runs in California's Central Valley. The project was officially announced as a Google project on June 14, 2013.
On June 16, 2013, Google began a pilot experiment in New Zealand where about 30 balloons were launched in coordination with the Civil Aviation Authority from the Tekapo area in the South Island. About 50 local users in and around Christchurch and the Canterbury Region tested connections to the aerial network using special antennas. After this initial trial, Google plans on sending up 300 balloons around the world at the 40th parallel south that would provide coverage to New Zealand, Australia, Chile, and Argentina. Google hopes to eventually have thousands of balloons flying in the stratosphere.
In May 2014, Google X laboratories director, Astro Teller, announced that, rather than negotiate a section of bandwidth that was free for them worldwide, they would instead become a temporary base station that could be leased by the mobile operators of the country it was crossing over.
In May-June 2014 Google tested its balloon-powered internet access venture in Piauí, Brazil, marking its first LTE experiments and launch near the equator.
In 2014 Google partnered with France's Centre national d'études spatiales (CNES) on the project.
In February 2014, the record streak for a balloon lasting in the stratosphere was 50 days. In Nov 2014, the record was 130 days, and in March 2, 2015, the record for a continuous balloon flight is 187 days (over 6 months).
On July 28, 2015, Google signed an agreement with officials of Information and Communication Technology Agency (ICTA) - Sri Lanka, to launch the technology on a mass scale. As a result, by March 2016, Sri Lanka will be the second country in the world to get full coverage of internet using LTE, after Vatican City.
On October 29, 2015, Google agreed to partner with Indonesia's XL Axiata, Indosat and Telkomsel to bring the technology to the country in the hopes of connecting its 17,000 islands.
On February 25, 2016, Google started testing their autolauncher named "Chicken Little" at former naval station Roosevelt Roads located in Ceiba, Puerto Rico.
In May 2017 Spacedata started proceedings for patent infringement, due in court in 2019.
On October 6, 2017, Google filed an application with the Federal Communications Commission (FCC), and cleared it the same day, with authorization to start immediately to provide emergency LTE coverage to Puerto Rico in the aftermath of Hurricane Maria. The plan allows 30 balloons to relay communication between ground terminals connected to people's handsets. Google will have to install Over The Air (OTA) updates to allow Band 8 operations and at the end of the authorization, a separate OTA update will disable this operation. Puerto Rico Governor Ricardo Rosselló announced at a press conference on October 8, 2017 the launch of Google's Loon Project on the Caribbean island, following its approval by the FCC.
On October 9, 2017, multiple balloons were spotted near Puerto Rico via Flightradar24. That same month, it was reported that the project had spun off into its own company Loon Inc, however it was clarified that it still remains as a project at X. On November 9, 2017, it was reported that Google had launched several balloons from Nevada and positioned them over Puerto Rico as part of an effort to bring 100,000 people online.
Maps Project Loon
Technology
Project Loon is Google's pursuit to deploy a high-altitude balloon network operating in the stratosphere, at altitudes between 18 km and 25 km. Google asserts that this particular layer of the stratosphere is advantageous because of its relatively low wind speeds (e.g., wind speeds between 5 and 20 mph / 10 to 30 km/h) and minimal turbulence. Moreover, Google claims that it can model, with reasonable accuracy, the seasonal, longitudinal, and latitudinal variations in wind speeds within the 18-25 km stratospheric layer.
Given a reasonably accurate model of wind speeds within the 18-25 km band, Google claims that it can control the latitudinal and longitudinal position of high-altitude balloons by adjusting only the balloon's altitude. By adjusting the volume and density of the gas (e.g., helium, hydrogen, or another lighter-than-air compound) in the balloon, the balloon's variable buoyancy system is able to control the balloon's altitude. Google has additionally indicated that balloons may be constructed from various materials (e.g., metalized Mylar or BoPET) or a highly flexible latex or rubber material (e.g., chloroprene).
Initially, the balloons communicated using unlicensed 2.4 and 5.8 GHz ISM bands, and Google claims that the setup allows it to deliver "speeds comparable to 3G" to users, but they then switched to LTE with cellular spectrum by cooperating with local telecommunication operators. It is unclear how technologies that rely on short communications times (low latency pings), such as VoIP, might need to be modified to work in an environment similar to mobile phones where the signal may have to relay through multiple balloons before reaching the wider Internet.
The first person to connect to the "Google Balloon Internet" after the initial test balloons were launched into the stratosphere was a farmer in the town of Leeston, New Zealand, who was one of 50 people in 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. The locals knew nothing about the secret project other than its ability to deliver Internet connectivity, but allowed project workers to attach a basketball-sized receiver resembling a giant bright-red party balloon to an outside wall of their property in order to connect to the network.
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. Google feels this will greatly increase Internet usage in developing countries in regions such as Africa and Southeast Asia that can't afford to lay underground fiber cable.
Equipment
The balloon envelopes used in the project are made by Raven Aerostar, and are composed of polyethylene plastic about 0.076 mm (0.0030 in) thick. The balloons are superpressure balloons filled with helium, standing 15 m (49 ft) across and 12 m (39 ft) tall when fully inflated. They carry a custom air pump system dubbed the "Croce" that pumps in or releases air to ballast the balloon and control its elevation. A small box weighing 10 kg (22 lb) containing each balloon's electronic equipment hangs underneath the inflated envelope. This box contains circuit boards that control the system, radio antennas and a Ubiquiti Networks 'Rocket M2' 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. Each balloon's electronics are powered by an array of solar panels that sit between the envelope and the hardware. In full sun, the panels produce 100 watts of power, which is sufficient to keep the unit running while also charging a battery for use at night. A parachute attached to the top of the envelope allows for a controlled descent and landing when a balloon is ready to be taken out of service. In the case of an unexpected failure, the parachute deploys automatically. When taken out of service, the balloon is guided to an easily reached location, and the helium is vented into the atmosphere. The balloons typically have a maximum life of about 100 days, although Google claims that its tweaked design can enable them to stay aloft for closer to 200 days.
The prototype ground stations use a Ubiquiti Networks 'Rocket M5' radio and a custom patch antenna to connect to the balloons at a height of 20 km (12 mi). Some reports have called Google's project the Google Balloon Internet.
The balloons are equipped with automatic dependent surveillance - broadcast and so can be publicly tracked (along with other balloons) with the call-sign "HBAL"
Incidents
- On May 29, 2014, a Loon balloon crashed into power lines in Washington, United States.
- On June 20, 2014, New Zealand officials briefly scrambled emergency services personnel when a Loon balloon came down.
- In November 2014, a South African farmer found a crashed Loon balloon in the Karoo desert between Strydenburg and Britstown.
- On April 23, 2015, a Loon balloon crashed in a field near Bragg City, Missouri.
- On September 12, 2015, a Loon balloon crashed in the front lawn of a residence on Rancho Hills, Chino Hills, California.
- On February 17, 2016, a Loon balloon crashed in the tea-growing region of Gampola, Sri Lanka while carrying out tests.
- On April 7, 2016, a Loon balloon landed on a farm in Dundee, KwaZulu-Natal, South Africa.
- On April 22, 2016, a Loon balloon crashed in a field in the Ñeembucú Department, Paraguay.
- On August 22, 2016, a Loon balloon landed on a ranch in Formosa, Argentina about 40 km. West of the Capital of Formosa.
- On August 26, 2016, a Loon balloon landed northwest of Madison, South Dakota.
- On January 9, 2017, a Loon Balloon crashed in Sieyic, near Changuinola, Bocas del Toro province, Panama.
- On January 8, 2017 and January 10, 2017, two Loon Balloons landed at 10 km E of Cerro Chato & 40 km NNW of Mariscala, Uruguay.
- On February 17, 2017 a Loon Balloon crashed in Buriti dos Montes, Brazil.
- On March 14, 2017, a Loon Balloon crashed in San Luis, Tolima, Colombia.
- On March 19, 2017, a Loon Balloon crashed in Tacuarembó, Uruguay.
- On August 9, 2017, a Loon Balloon crashed in a reedbed in Olmos, Lambayeque, Peru.
- On December 30, 2017, a Loon Balloon crashed in Nthambiro, Igembe Central, Meru County, Kenya.
Reception
Project Loon has generally been well received, although Square Kilometre Array (SKA) project developers and astronomers have raised concerns that the lower of the two ISM bands that Loon uses (2.4 GHz) will interfere with the mid-band frequency range (0.5 GHz-3 GHz) used in the SKA project.
Google has not yet specified the costs of this project.
New Zealand's Prime Minister John Key delivered a speech at the launch event in Christchurch stating that the Internet is important for New Zealand to help it globally distribute what it produces in a low cost way as the next 4 billion people come online; Key also acknowledged the potential of utilizing Loon for disaster recovery.
See also
- List of countries by number of Internet users
- Mobile broadband modem
- Google Fiber
- High-altitude balloon
- Atmospheric satellite
- Alliance for Affordable Internet
- Internet.org
- Geostationary balloon satellite
- Outernet
- O3b Networks
- Google Free Zone
- Stratovision
References
External links
- Official website
- Project Loon's channel on YouTube
- Wired: The Untold Story of Google's Quest to Bring the Internet Everywhere--By Balloon
- Sri Lanka inks deal for Google Loon broadband floating 'telecom towers
- PointALoon: Open-source tool for Project Loon live signal tracking
Source of article : Wikipedia
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