TAHMO

News

TAHMO is seeking a provider of M2M services mainly for African countries.
We are seeking a broad availability of various networks in different countries.

What are we seeking:
– unique M2M sim cards functioning in all or most African countries
– a broad choice of networks as our equipment is located sometimes in remote locations
– we require a maximum of 1Mb of data per month
– we would like a unique price preferable for all of Africa or at least per country.
– The price should include a platform accessible by anyone we choose in order to activate and suspend sim cards.

Documentation to provide when submitting a quote:
– the mobile footprint of the available networks your sim cards can access

Please send the offer and documentation to Rebecca Hochreutener by April 28th, 2017 12:00 noon CET. Please use “M2M offer ‘name of the company'”  in the subject of the email. Thank you.

Every five kilometers ($ 3) that you run and every thirty kilometers ($ 5) that you ride on your bicycle are valuable. Not only for you but also for scientists, farmers, fishermen, malaria fighters, and government agencies in Africa. Because when you download their free app, the Meter Group, a supplier of measurement technology, donates these dollars for your meters to the Trans-African Hydro-Meteorological Observatory Foundation (TAHMO).

That way, both you and the Meter Group support TAHMO in its aim to achieve a network of a total of 20,000 weather stations in Africa. Local farmers and fishermen will benefit most from the local real-time weather information and weather forecasts, that will become available through each weather station. This information is crucial because over 75 percent of the local population is dependent on agriculture and hence the weather. Professors Nick van de Giesen (Civil Engineering and Geosciences at TU Delft) and John Selker (Biological and Ecological Engineering, Oregon State University) designed the TAHMO low-maintenance weather stations with their research teams and partners. The weather stations are mostly located at schools so they can also be used in educational programs. Without these weather stations, there is no accurate weather information available in most places.

Download the free app and bring accurate weather in Africa closer with each step https://itunes.apple.com/us/app/every-meter-counts/id1185112162?mt=8

For more information about TAHMO click here https://www.youtube.com/watch?v=udKAu0Fr9hI

calendarTAHMO is attending various events, conferences, and seminars. Do you want to know when/where to find us? Please see the list below.

Oluwatobi Oyinlola

Oluwatobi Oyinlola at the Hackaday finals

The past Summer, TAHMO ran a project under the umbrella of Hackaday. The project helped us to move forward on the lightning sensors and the more advanced usage of GPS signals. We made it to the semi-finals but unfortunately, we did not make it to the finals. However, team-member Oluwatobi Oyinlola was able to travel to San Francisco to attend the finals. He writes: “It was a great privilege to represent TAHMO at the Hackaday Conference in San Francisco in November 2015. I met many like-minded people in the field of embedded systems, such as Chris Low, David Pruth, and some other electronics hobbyists. I really appreciate the support of TAHMO for my participation. Unfortunately, we did not make it to the finals but it was a very worthwhile experience.”

Hacking is still very much at the heart of TAHMO and we hope we will be able to run another competition on the African continent in the coming year.

P1000358For the TAHMO project funded by the first Call of the Food & Business Applied Research Fund (ARF) of NWO-WOTRO, Mr. Alloysius Attah and Ms. Ellen van Andel participated in a three-day-workshop on Food and Business Research in Uganda which took place from October 1 to 3.
At the workshop, several issues were discussed such as co-creation, stakeholder engagement, and commercialization of knowledge. About 40 project representatives and 25 external stakeholders actively engaged by exchanging ideas and sharing lessons learned to enhance the uptake of research results derived from the projects.

More information:  three-day-workshop and TAHMO project in Ghana

Enhancing research impact for food security
NickvandeGiesen opens DGI

Nick van de Giesen opens DGI

Concrete solutions to problems in the developing world using science and technology – that’s the goal of TU Delft’s Global Initiative (DGI), which was officially launched on 24th November 2015. Nick van de Giesen, co-founder of TAHMO and chairman of the DGI had the honor to kick off the event.
The launch featured TU Delft scientists, students, and entrepreneurs strolling down a catwalk, showcasing 22 projects already tackling global challenges e.g. a smartphone app that scans a missing limb, then guides the creation of a 3D-printed prosthetic; diapers for disabled children; solar powered water purification; a cheap, robust thermometer; gas stoves tailored to different global contexts. TAHMO also presented its innovative and robust weather station for sub-Saharan Africa.

DGI kick offNickvandeGiesen opens DGI2
Then four international keynote speakers – Noha El-Ghobashy, founding president of Engineering 4 Change; Professor Mugendi K. M’Rithaa, industrial designer at South Africa’s Cape Peninsula University of Technology; IBM’s Dr. Kala Fleming, a thought leader on water management; and Professor Lex Peters, founder of the Female Cancer Foundation – provided further inspiration, with a touch of practical advice, in their extraordinary ‘stories from the field.’ And to finish, the University’s Rector Magnificus, Professor Karel Luyben, was presented with the first copy of DGI’s new booklet:  “Science for the Benefit of People. All people. Worldwide.”

More information can be found here: www.delftglobal.tudelft.nl

by Nick van de Giesen

EGU_2015The European Geosciences Union (EGU) has an educational outreach program for high school teachers, called Geosciences Information For Teachers (GIFT). Every year, workshops are organized during which teachers interact with geoscientists. As is stated on their website: “The main objective of the GIFT workshops is to spread first-hand scientific information to science teachers of primary and secondary schools, significantly shortening the time between discovery and textbook, and to provide the teachers with material that can be directly transported to the classroom.” Usually, these workshops are held at the General Assembly of the EGU in Vienna but this year there was a special workshop near Addis Ababa with 35 teachers from Ethiopia. During the 2012 EGU General Assembly, I presented TAHMO to European teachers at the GIFT workshop. This year, I did the same in Addis but now included the “build your own disdrometer” experiment. The teachers were very interested and there was a lively discussion on how we could bring further development in the classroom. Especially the question as to what extent local materials can be used for building weather stations was discussed intensely.

workshop_Ethiopia

Teachers soldering disdrometers

The disdrometer exercise was, as always, a big success. Basically, a piezo-electric element is glued under a hard surface, in our case the glass of a little picture frame. Then the two wires from a standard mono-audio plug are soldered to the metal and ceramic parts of the piezo. The plug can then be plugged into a little amplifier with a speaker after which the sensor can be tested by ticking on it. People were very eager and did not need any help with soldering, even though no one had soldered before! In a very short time, ten distros were put together and tested. Several teachers expressed interest in repeating the exercise at their schools. It should be very simple to put together a small package with which one can perform the experiment. Most items can normally be sourced locally, such as soldering iron and tin, super glue, a hard protective surface, and an audio plug. A cheap radio can be hacked to make the signal audible. All that is really needed are some instructions and piezoelectric elements.

esnc15Prof. Dr. Nick van de Giesen, co-director of TAHMO, and Dr. Eugenio Realini won both as special prize winners in the University Challenge and as regional winners for the Netherlands in the 2015 European Satellite Navigation Competition (ESNC). Each year, the ESNC seeks services, products, and business innovations that use satellite navigation in everyday life. The prize pool in ESNC 2015 was valued at approximately 1 million Euros, which included cash awards, business incubation, business coaching, patent consulting, technical support, access to testing facilities, prototype development, publicity, marketing support, and much more. All of the winners were recognized on stage at a festive Awards Ceremony that took place on 20 October in line with the Satellite Masters Conference in Berlin, Germany.

The winning idea: GNSS (global navigation satellite system) monitoring of precipitable water vapor over East Africa using low-cost receivers.

African weather is poorly monitored, especially for forecast purposes. At the same time, African societies are vulnerable to extreme weather events. By far the most critical weather variable is rainfall. To make good predictions about rainfall, it is important to know how much water vapor the atmosphere contains. More water in the atmosphere means more rainfall. Traditionally, this amount of water is measured by weather balloons, but these are expensive and there are only a few regular launches over Africa. GNSS signals travel slightly more slowly through moist air than through dry air. A GNSS receiver can measure the extra delay caused by moisture in the atmosphere, even though the differences are very small. Today, even low-cost GNSS receivers are so accurate that they can measure these delays. The plan is to add these low-cost GNSS receivers to the stations of the TAHMO (Trans-African Hydro-Meteorological Observatory) network around Lake Victoria. TAHMO is building a network of 20,000 robust and cost-efficient weather stations across Africa. By adding GNSS/Galileo receivers, it will be possible to greatly improve rainfall predictions.

For more information about the competition and TAHMO’s contribution, check out the ESNC website here.