PRE2018 3 Group16

Group members

Edwin Steenkamer	1006712
Sjir Schielen	1024154
Thijs Conner	1011148
Tobin van den Hurk	1009573
Tom Verberk	1016472

Subject

The environmental challenges in Africa, which are only increasing in difficulty due to, among other things, the consequences of global warming, are a real concern for the food production in this area. As a consequence, independent and poor small-scale farmers and small villages living of agriculture across Africa may struggle to sustain themselves. Since the agricultral sector makes up a large part of the Sub-Saharan labor market, every improvement made in this area will significantly benefit a great part of the African population. However, the lack of proper education and the misuse of technology in these agricultural areas hinders the development of efficient food production. A low budget, self-providing, agricultural system which can identify problems and assist the farmers in maximizing their food produce, while simultaneously minimizing the cost of resources, could help these farmers sustain themselves with more ease, leading to more opportunities for the long-anticipated urbanization of Sub-Saharan Africa to take off.

Objectives

The objective is to design a robot that satisfies the following requirements. The robot should help small-scale farmers to be self-providing and independent without negative consequences. Considering that funding is a difficult aspect, the robot has to be designed with a low budget. An optimization has to be found between maximizing food production and minimizing the required resources and costs.

Milestones

• Summarize at least 7 scientific articles each
• Current situation sketch
• Determine & discuss possibilities for improvement of current situation
• Cost analysis
• (Low-level) System design
• Example scenarios

Approach

For this project, an initial literature study is required. By exploring the subject in a top-down fashion, the main focus of the project can be adjusted. In other words, gathering information on the broad topic of farming in sub-optimal conditions in general, allows for the project to delve deeper into the aspects of farming deemed most important. Using this method instead of starting with a focus on a specific problem regarding farming, eliminates the threat of discovering this specific problem is not as interesting or important as expected. Another benefit of starting with an extensive research on the state-of-the-art, is that the amount of assumptions is expected to be limited. This allows for more grounded arguments and reasoning as to why certain aspects are deemed more important.

Deliverables

This project will ultimately consist of

• A literature study on automated farming
• In-depth analysis on yet to be specified topics, exploring their possibilities
• A design for automated farming in hot and arid conditions

Planning

The planning can be viewed by following this link.

Role division

The role division, or 'who will do what' section, is likely to change over time, because newly obtained knowledge can steer the project in a (slightly) different direction. As of now, the following role division is made:

Edwin focuses on the state-of-the-art and the users requirements that the design should satisfy.

Sjir does research on water management and livestock and specifies the requirements the design should satisfy with respect to water management and livestock.

Thijs and Tobin do research on what measurements should be performed and how they should be performed. They also specify the requirements with respect to measurements and perform a cost analysis.

Tom does research on and specifies design requirements on water management and irrigation. He also does a cost analysis.

A completer role division is listed in the planning. There is some overlap in the tasks that are carried out, which is done on purpose to create room for discussion on the requirements.

Users

Vergeet niet user requirements er bij te zetten

State-of-the-art

Summary energy: Energy production is vital to the development of Africa. Currently only an estimated 31% of the whole population in Sub-Saharan Africa has access to electricity, whereas about 80% of the energy consumption is still accounted for by traditional biomass energy. An increase in energy consumption is needed for Sub-Saharan Africa to develop. Climate changes poses a threat to the already vulnerable agricultural sector of Sub-Saharan Africa. Energy sources other than biomass with low carbon emissions are needed to improve the agriculture in these fragile environments. The lack of funding is the major problem and as the globe warms, time is of the essence [15]. Sub-Saharan Africa offers conditions that may be beneficial for energy production. The area receives solar radiation with an intensity that is among the highest on the planet. The now commercially available technology concentrating solar power (CSP) is a candidate technology which, with the right investments, can generate a lot of power in North Africa [32]. There are possibilities for large scale energy production in this area, which may benefit other parts of the world as well, but the main problem remains funding.

Summary livestock: There are theoretical benefits to the interaction between crops and livestock. Livestock can be used for physical labour on the land and manure can fertilize the soil. In Sub-Saharan Africa, however, this concept is not well integrated. The concept is not applied through the availability of information, but through environmental differences [25]. Another theory suggests that households in Sub-Saharan Africa use livestock as a buffer stock to insulate their consumption from income fluctuations. As the problems of engaging in rainfed agriculture are inevitable in a drought-prone area, it is often assumed that livestock form a buffer for the dry season. Results indicate that livestock transactions play less of a consumption smoothing role than often assumed. One can conclude that there are better ways to manage agriculture [13]. Another problem is that most livestock was introduced to Africa through trade with Europe and the Middle-East, hence the animals are less adapted to the extreme conditions [19]. The use of different animals as livestock may benefit the harsh areas. It is, however, important to analyze how effective species are with water. A way to do this is by the concept of livestock water productivity (LWP) [10]. LWP is defined as the ratio between the sum of all net livestock products and services and the sum of all depleted/ degraded water. It assigns a numerical value with the unit dollar per cubic meter of water. By using this concept a numerical problem can be formulated that allows optimization. This approach does, however, rely on available information and it is estimate based.

Summary Methods of Soil sampling and analysis: Soil consists of many different kind of elements which can have an effect on the crop growth. To measure these elements soil sampling and analysis has to be done. Different analysis methods are needed for different elements such as chemical, biological, organic matter, physical and water analyses [6] [17] [24]. The effectiveness of these tests, for a low budget and uneducated farmer, are dependant on the ease of use and low-cost equipment. Investigating new and improved ideas of how to measure specific elements may help in choosing the right tests [33] [35] [20]. In case of putting these sensors on a robot an assessment also has to be made about the effectiveness of different kind of agricultural robots [26].

Scientific papers

The summaries of the scientific papers which have been read can be found here