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Brazilian Solar-powered WiFi for Poor Schools

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

There is a pressing need to spread access to the internet to the world’s poor — but also many obstacles. Often it is something as basic as a lack of electricity that brings progress to a halt. But a Brazilian innovator has come up with a solar power supply that is helping to bring internet access to schools serving the poor.

Many initiatives are trying to bring inexpensive access to the internet to rural and remote regions around the world. Schools in poor areas are receiving laptop computers through schemes like the One Laptop Per Child project, but it is common that schools do not have a steady electricity supply to power the computers or the internet connection. One of the most successful ways of rapidly expanding access is to offer wireless (WiFi) internet so that anyone can use the Web, no matter what device they have, whether a laptop computer, a personal computer or a mobile phone. The signals use radio waves, and are an excellent solution for multiple users.

Brazilian professor Marcelo Zuffo, Interactive Electronics Coordinator at the University of Sao Paulo, has invented a cheap solar-powered WiFi access point for the poor. Designed to be used by schools without a steady source of electricity, it doesn’t need outside electricity supply, and is not difficult to assemble. It is being tested on lampposts around the Sao Paolo campus.

The device uses something called a ‘mesh’ strategy. By acting as a group, several units are able to expand the area covered by WiFi in a honeycomb pattern. The signal is relayed back and forth between the units, significantly increasing the area covered that can access the Web. “In such a strategy,” said Zuffo,”you can cover large rural areas, parks, low income neighbourhoods, by just dropping our equipment in roofs, trees or on to existing lamp posts.”

Zuffo was inspired to develop the solar-powered WiFi boxes after the university tried to bring laptop computers to a Sao Paulo school, and found they didn’t have a steady electricity supply.

“We came up with the idea of taking energy that is most plentiful and cheap, i.e. the sun,” he told the BBC. “We have a solar panel, a cheap motorcycle battery and a circuit that is responsible for energy management. We can have up to two days of full internet coverage and our goal is to increase that to 10 days – so that in the rainy season and the winter, you can have the internet for free.

“The natural plan is to miniaturize the system so that we can save on costs. So by the end you can imagine these WiFi solar mesh devices being the size of a cellphone or playing card.”

The low cost, solar-powered access point is ready as soon as it is unpacked and needs neither maintenance nor a power socket to get going.

“It is a completely autonomous WiFi hotspot, it doesn’t need any internet or energy connection,” said Zuffo.

“Everything comes from the sun and we have plenty of that in Brazil,” he said.

The volunteer organization Green WiFi initiative is also developing solar powered technologies to bring ubiquitous internet access to the world’s poor.

Zufo’s message for other scientists and inventors is this: “Innovation, invention is all about transforming people’s lives. We need methods and equipment which are cheap enough so that they are accessible to virtually every one, suitable for small scale applications, and compatible with man’s need for creativity.”

The issue of inequality in access to the internet has stark consequences for global economic development. Already, according to the World Information Society Report 2007, “Europe has achieved the largest overall gain in digital opportunity over the last two years, followed by the Americas… Asia and Africa have witnessed smaller gains in digital opportunity. The implications for the digital divide are clear: digital opportunity is becoming more sharply divided by region, not less.”

Published: November 2008

Resources

  • Wireless Networking in the Developing World: A Practical Guide to Planning and Building Low-cost Telecommunications Infrastructure. Website:
  • World Information Society Report 2007: A progress report on pledges to bring digital opportunity to all. Website:
  • The Wireless Geographic Logging Engine: This is a website with maps tracking the presence of WiFi access around the globe. So far it maps over 10 million separate WiFi networks. Entrepreneurs only have to log into the website to start searching for wireless networks near them.
  • iTrike: The world’s first solar powered wireless internet rickshaw.
  • The KyaTera lab where the technology was developed. Website: http://kyatera.incubadora.fapesp.br/portal/research/laboratories/interactive-electronic-media

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator. 

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This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2023

Categories
Archive data Development Challenges, South-South Solutions Newsletters Southern Innovator magazine

The BRCK: Kenyan-Developed Solution to Boost Internet Access 

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Using the Internet in Africa has its challenges, as anyone who has worked there knows. Issues can include weak Wi-Fi signals, slow Internet service providers, electricity outages and power surges that can damage or destroy sensitive electronic devices.

Power surges (http://electronics.howstuffworks.com/everyday-tech/surge-protector3.htm) can occur for a variety of reasons but are usually a sudden surge in the current flowing to the wall outlet from the power mains. They are common in developing countries, and can be tragic for electronic devices.
Most electronic devices are designed for use in developed countries where people can take the power supply, and ubiquitous Internet access, for granted. This affects the way devices are made. Designers will assume many things are available to users and build the electronic devices accordingly. But for users in Africa and across the global South, what seems easy in the developed world is fraught with frustration and wasted time.

This is a big obstacle to economic development and places people in Africa at a disadvantage in the modern world of fast communications.

One initiative is out to transform this experience for the better with a made-in-Africa solution that is being modified based on real-world experience and user feedback.

The BRCK (brck.com) bills itself as “your backup generator for the Internet” and is intended to address the problems of finding a reliable Internet connection, staying online in a power blackout and saving devices from destruction when there is a power surge.

Anyone who has tried to use a laptop computer to upload some photographs in Africa will know the frustration felt when the Wi-Fi signal drops away. The BRCK hunts around for the strongest signal and grabs it so the user can carry on working.

Built to be robust and take knocks and bruises, it is a sleek, black plastic brick-shaped device with the letters BRCK elegantly embossed on the side.
The BRCK can function as a hub for up to 20 devices, with a built-in Wi-Fi signal able to cover multiple rooms (so a team can work off a single Internet connection), a battery that can last eight hours, a 16-gigabyte on board memory hard drive, and software to allow for remote management  by apps on other devices such as smartphones. While it is not able to speed up an already poor connection or increase low bandwidth, it can “scavenge” around to find the strongest signal and hop to it right away. It can work with Ethernet, Wi-Fi, and 3G and 4G networks.

If a blackout occurs, it quickly switches to the onboard battery without forcing a re-boot of the computer.

It has been developed in Nairobi, Kenya and the first plastic prototype of the BRCK device was milled at the Fab Lab Nairobi (http://fablab.uonbi.or.ke/) using a 3D fabricator machine.

The BRCK’s makers describe it as a tool “trying to create ubiquitous Internet” and an “enabler of the Internet of things.” The BRCK is designed around the changing way people work and access the Internet, frequently moving from place to place. People now don’t just rely on one device but have many – a mobile phone or smartphone, a laptop, a tablet, an iPod or other device.

A Kickstarter fundraising campaign (https://www.kickstarter.com/projects/1776324009/brck-your-backup-generator-for-the-internet) gives more details on the origins of the project and offers many ways to support the different stages of development, right up to mass manufacturing of the BRCK.

One application of the BRCK is for research. It could be deployed to gather data at a field site, then connect via the Cloud (http://en.wikipedia.org/wiki/Cloud_computing) to pass data back to a lab at a university in another country for analysis.

The BRCK is being built by Ushahidi (ushahidi.com), a non-profit technology company that makes open source software and made its name with the crowdsourced mapping platform it built during the post-election violence in Kenya in 2008. The Ushahidi platform has been deployed around the world since in many crisis situations.

Founded by David Kobia, Juliana Rotich and Erik Hersman, the Ushahidi team is focused on “building tools that improve the way information flows in the world.” It is about making tools to help people communicate in the most difficult places.

BRCK comes with a visually appealing website that makes excellent use of the BRCK’s ebony good looks.

The website boasts: “If it works in Africa, it’ll work anywhere”.

The ongoing development of the BRCK can be followed on the website’s blog: http://www.brck.com/2014/01/they-case-for-engineering-brck-in-africa-part-1/.

“The idea is to build a company around the product rather than just do a one-off product – and to gradually improve the product through new versions,” said BRCKs chief technology officer Reg Orton.

“Our engineers are based in Kenya now – we are not based in China, we are not based in the (Silicon) Valley. What that means for us we are able to go out there and (be) able to see the problems directly.”

The BRCK can be ordered online and will be available for sale soon, according to the website.

Published: April 2014

Resources

1) Momax iPower Milk External Battery:  Inspired from daily life, the creative iPower Milk looks like a cute and fresh milk carton. It fulfills your daily energy need just as pure milk. iPower Milk comes in a variety of cheerful candy colors, so choose one which suits your taste. The tiny and delicate iPower Milk has 1.5A USB output, which is compatible with most digital devices, including tablets. Website: http://shop.brando.com/Momax-iPower-Milk-External-Battery-2600mAh_p09700c1595d003.html

2) Southern Innovator Issue 1: Mobile Phones and Information Technology: Pioneering and innovative ways to deploy mobile phones and information technology to tackle poverty. Website: http://www.scribd.com/doc/57980406/Southern-Innovator-Magazine-Issue-1 and here: http://tinyurl.com/q6bfnpz
3) iHub Nairobi: Nairobi’s Innovation Hub for the technology community is an open space for the technologists, investors, tech companies and hackers in the area. This space is a tech community facility with a focus on young entrepreneurs, web and mobile phone programmers, designers and researchers. It is part open community workspace (co-working), part vector for investors and VCs (venture capitalists) and part incubator. Website: ihub.co.ke

4) Fab Lab Nairobi: Fablab (fabrication laboratory or “fabulous laboratory”) is a workshop with an array of computer controlled tools with the aim to make “almost anything”. Fab labs provide widespread access to modern means for invention. They began as an outreach project from MIT’s Center for Bits and Atoms (CBA). CBA assembled millions of dollars in machines for research in digital fabrication, ultimately aiming at developing programmable molecular assemblers that will be able to make almost anything. Fab labs fall between these extremes, comprising roughly fifty thousand dollars in equipment and materials that can be used today to do what will be possible with tomorrow’s personal fabricators. Website: http://fablab.uonbi.or.ke/

https://davidsouthconsulting.org/2021/03/20/accessing-global-markets-via-design-solutions/

https://davidsouthconsulting.org/2022/10/26/africa-to-get-own-internet-domain/

https://davidsouthconsulting.org/2022/10/24/brazilian-solar-powered-wifi-for-poor-schools/

https://davidsouthconsulting.org/2020/04/30/crowdsourcing-mobile-phones-to-make-the-poor-money/

https://davidsouthconsulting.org/2020/05/01/diy-solution-charges-mobile-phones-with-batteries/

https://davidsouthconsulting.org/2022/10/17/east-africa-to-get-its-first-dedicated-technology-city/

https://davidsouthconsulting.org/2020/12/20/kenya-reaches-mobile-phone-banking-landmark/

https://davidsouthconsulting.org/2022/11/23/kenyan-farmer-uses-internet-to-boost-potato-farm/

https://davidsouthconsulting.org/2020/12/20/mobile-phones-bring-the-next-wave-of-new-ideas-from-the-south/

https://davidsouthconsulting.org/2021/03/20/texting-for-cheaper-marketplace-food-with-sokotext/

https://davidsouthconsulting.org/2022/10/10/wireless-internet-culture-helping-zimbabwe-economy-recover/

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.  

https://davidsouthconsulting.org/2021/03/05/southern-innovator-issue-1/

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2023

Categories
Archive Blogroll Development Challenges, South-South Solutions Newsletters

African Supercomputers to Power Next Phase of Development

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Information technology developments in Africa have long lagged behind those in other parts of the world. But the transformation being brought about by the widespread adoption and use of mobile phones – each one a mini-computer – and the expansion of undersea fibre optic cable connections to Africa are creating the conditions for an exciting new phase of computing growth on the continent.

Despite the global economic crisis, Africa is on course to see annual consumer spending reach US $1.4 trillion by 2020, nearly double the US $860 billion in 2008 (McKinsey). On top of this, by 2050, a projected 63 per cent of Africa’s population will be urban dwellers. With Africa’s middle class the fastest-growing in the world – doubling in less than 20 years – matching computing power with this consuming urban population could unleash a treasure trove of opportunity for information technology entrepreneurs.

These developments are creating the conditions for game-changing computing in the next years. And this is encouraging the creation of a new supercomputer (http://en.wikipedia.org/wiki/Supercomputer) for Africa in Kenya that will double the total number of supercomputers in Africa. Hugely powerful compared to personal or commercial computers, supercomputers use cutting-edge technology to carry out high-speed calculations involving vast quantities of data.

Expanded supercomputing power brings numerous advantages to both economic and human development. It will radically alter what can be accomplished in Africa – allowing mass data processing to be done, highly complex and data dense applications to be run, and very large research projects to be conducted on the continent rather than overseas.

Increasing computing power in Africa will bring in its wake, it is hoped, a surge in economic and research opportunities.

It will help African researchers and scientists to undertake globally competitive projects, rather than seeing this work done overseas. It will also open up a vast range of possibilities for African entrepreneurs and businesses to do complex data processing, modelling and research and will enable them to become more sophisticated operations.

The new supercomputer, the iHub Cluster, is being built in the Kenyan capital by one of Africa’s pioneering information technology hubs – iHub Nairobi (http://ihub.co.ke/pages/home.php) – in partnership with Internet products and services company Google and microchip maker Intel Corporation.

Africa’s first supercomputer is located in South Africa and is ranked 497 in terms of computing power on the list of 500 supercomputers in the world (http://www.top500.org/).

It is located in the “Tsessebe cluster” in Cape Town’s Centre for High Performance Computing (http://www.chpc.ac.za/).

“With mobile devices coming in multiple cores, it is important for developers to be exposed to higher performance computing; we are hoping to debut at a higher level than ‘Tsessebe cluster’,” Jimmy Gitonga, the project team leader for the iHub cluster, told Computer World.

Africa suffers from poor supercomputer capacity and this has had a knock-on affect on everything to do with economic development. The iHub supercomputer hopes to help universities and colleges to gain competitive edge and be able to undertake more complex research in the fields of media, pharmaceuticals and biomedical engineering.

“In Africa, we need to be on top of the mobile scene, its our widest used device,” Gitonga told Computer World.

Some of the practical applications for the iHub supercomputer in East Africa and the Horn of Africa include improving weather forecasting and drought prediction, increasing the ability to give advance warning of droughts and famines in the region.

“Most of the United Nations agencies and international agencies operating in the region have extensive field research on how to tackle natural disasters in the region. Imagine if they had affordable space where they can meet with developers and test resource-hungry applications,” Gitonga said.

The iHub also wants to offer the services of the supercomputer to researchers and organizations who have had to go abroad to have their data processed.
The iHub supercomputer hopes to be used by mobile phone developers, gamers, universities and research institutions.

In the last two years, China had pushed the United States out of the number one spot for supercomputers. The Tianhe-1A located at the National Supercomputing Center in Tianjin (http://www.nscc-tj.gov.cn/en/), China, was the fastest computer in the world from October 2010 to June 2011.

For those looking to see how they can make the most of the growing supercomputer capability in Africa, examples from other countries offer a good idea. Supercomputers can be used for weather forecasting, climate research, oil and gas exploration, physical simulations like when testing aircraft, complex modelling for medical research, processing complex social data necessary for delivering effective social programmes or running modern health care systems.

Published: October 2012

Resources

1) A video on how to use a supercomputer. Website:http://www.youtube.com/watch?v=yvbSX–LOko

2) Southern Innovator Issue 1: Mobile Phones and Information Technology. Website:http://www.scribd.com/doc/95410448/Southern-Innovator-Magazine-Issue-1-Mobile-Phones-and-Information-Technology?in_collection=3643685

3) Read more about the iHub supercomputer. Website:http://www.ihub.co.ke/blog/2012/09/the-ihub-cluster/

4) More on High Performance Computing from Intel Corporation. Website:http://www.intel.com/content/www/us/en/high-performance-computing/server-reliability.html

https://davidsouthconsulting.org/2022/11/11/african-botanicals-to-be-used-to-boost-fight-against-parasites/

https://davidsouthconsulting.org/2022/11/11/african-breakthroughs-to-make-life-better/

https://davidsouthconsulting.org/2022/11/20/african-bus-to-tackle-african-roads/

https://davidsouthconsulting.org/2022/11/19/african-culture-as-big-business/

https://davidsouthconsulting.org/2022/11/17/african-ingenuity-attracting-interest/

https://davidsouthconsulting.org/2022/11/15/african-innovators-celebrated-in-prize/

https://davidsouthconsulting.org/2022/11/02/african-online-supermarket-set-to-boost-trade/

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Creative Commons License

This work is licensed under a
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ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2021

Categories
Archive Blogroll data Development Challenges, South-South Solutions Newsletters Southern Innovator magazine

Record-breaking Wireless Internet to Help Rural Areas

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Many initiatives seek to bring inexpensive access to the internet to rural and remote regions around the world. One of the most successful ways to rapidly expand access is to offer wireless internet so that anyone can use a laptop computer, a PC or a mobile phone to quickly access the Net. Access to wireless internet is being rolled out in cities around the world with so-called ‘hot spots’, but the thornier issue of improving access in rural or remote regions could get better, thanks to a Venezuelan team.

The rapid expansion of mobile phones has done much to reduce the digital divide in Africa, for example, where the number has grown from just 15 million in 2000 to more than 160 million by the end of 2006, according to the International Telecommunications Union. This rapid growth has paid off: Morocco, Senegal, Ghana, Gabon and Cote d’Ivoire are in the top ten gainers of the Digital Opportunity Index, 2004-2006 (http://www.itu.int). The proliferation of Wi-Fi-enabled mobile phones combined with the spread of inexpensive wireless access has the potential to close the digital divide between rural and urban areas.

The issue of inequality in access to the internet has stark consequences for global economic development. Already, according to the World Information Society Report 2007, “Europe has achieved the largest overall gain in digital opportunity over the last two years, followed by the Americas… Asia and Africa have witnessed smaller gains in digital opportunity. The implications for the digital divide are clear: digital opportunity is becoming more sharply divided by region, not less.”

As the Digital Divide campaign learned, it is more important to keep in mind “Internet kiosks or rental of cell phones and other devices hold great promise for the poor. But shared use is a complement to a strategy that involves giving each person their own wireless device. Eventually, the price of such devices will be low enough so that everyone can have their own device.”

A Venezuelan team led by Ermanno Pietrosemoli, president of the Latin American networking association Escuela Latinoamericana de Redes, has broken the world record for unamplified broadcasting of a Wi-Fi (wireless internet) signal. The signal was broadcast in June from two mountains 282 kilometres apart in the Venezuelan Andes. Importantly, they did this using equipment costing only just over US $360, while producing a signal strong enough to send video messages. The former record was 220 kilometres set in 2005.

The consequence of this achievement for entrepreneurs is important: It means inexpensive wireless signals can now reach further into remote and rural regions for a small investment.

“We we’re able to transmit voice and video with both,” said Professor Pietrosemoli. “280 kilometres is pushing the envelope, but the same technique can be used at distances of some 150 kilometres by people with some basic training provided there is uninterrupted line of sight between the end points. This usually means shooting from hills or using them as repeater points. For distances up to 80 kilometres, towers can be used to provide connectivity even in flat land”

Pietrosemoli is willing to train people in the techniques he has developed for transmitting wireless over large distances (https://wireless.ictp.it or www.eslareed.org.ve).

The advantages of this approach include cost and simplicity. The more commercial WiMax technology costs more and is usually installed by large companies. Pietrosemoli’s technique is for people who lack those technical and financial advantages.

“I have been installing wireless networks for some 20 years,” he continued, “and reckon that wireless is the only viable alternative to ameliorate the digital divide in developing countries. For rural areas, the challenge is to use as little repeater sites as possible, as each repeater adds costs, delay and powering issues.”

Pietrosemoli said the only other obstacle to setting these networks up is the availability of unlicensed radio frequency spectrum in the 2,4 and 5 Ghz bands. The International Telecommunications Union has recommended that countries make these free for the use of data networks, but some countries are still blocking this.

Published: July 2007

Resources

Southern Innovator Issue 1: Mobile Phones & Information Technology.
Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2023