Roundabout Water Solutions, who has an agreement with the South African Department of Water Affairs and is raising donor funds to supply rural communities, with clean drinking water, by means of a sustainable pumping system, called a PlayPump, that is powered by the play of children. Girls in particular have to give up time that should be spent on their education to collect water. The PlayPump is often the only piece of playground equipment at a school and provides the children with a constructive and rewarding way to use their energy. Improved health by virtue of a reduction in water borne diseases. This leads to a reduction in the number of cases of diarrhoea.
How PlayPumps are an example of learning from failure
How PlayPumps are an example of learning from failure - Humanosphere
In my thesis download PDF I analyse the PlayPump at length, and it is that document you should consult for all my evidence and arguments about the project. On this page of my site is a brief background introduction to the rise and fall of the project, followed by a short discussion of some of the points from my thesis, some of my presentations on the PlayPump , and a reference section with links to supporting documents and other critical information about the project. The basic system was invented by water engineer Ronnie Stuiver in South Africa in , and then modified and popularised by a former advertising executive, Trevor Field. After winning a World Bank Development Marketplace Award in , and through a series of positive reviews in the international press, the project accelerated rapidly. PlayPumps International ran very successful campaigns to gather donations online, organizing major concert tours and celebrity endorsements. But in , support for the project began to decline sharply.
EDDY Pump Case Studies
This case study discusses the control software for a personal insulin pump, which is used by diabetics to mimic the function of the pancreas and hence control the level of glucose sugar in their blood. The system hardware is illustrated schematically in the following diagram:. The level of blood sugar depends on what the system user has eaten, the speed of their digestive processes and the effectiveness of their body in metabolising blood sugar.
This case study is used throughout the book to illustrate various aspects of embedded critical systems including specification and safety analysis. The material here is based on classwork that I set around this system where students had to write a simulation of it. General overview of the system. Chapter 3: Dependability Chapter 9: Critical systems specification Chapter Formal specification Chapter Critical systems development Chapter Critical systems validation. A commercially available blood sugar meter and injection device.