18/7/2017 Learning by Doing!
We make a box for growing vegetables in a aquaponic system, in Green Lab at Universityof Paris VI.
We listened to a lecture of aquaponic system, about the details such as species of fishes, metarials of substracts and syphon structure.
Designed the structure and dimention of vegetable box, and made it, srewing and knocking.
Used solid?? (a software) to build up a 3D model of syphon
Following mentors' suggestion and a discussion, we decided to focus on cheap and innovative sensors, as well as automatic feeding system.
19/72017 Details of Improvement!
Today, we divided the whole project into two parts, Jessica and Thomas for the automative feeding part, and Willy, An and Amanda for the sensors part.
Automative feeding system_natural ecosystem!
We decided to add a tank in our aquaponic system to grow Artemia (sea monkey), which could serve as food (living food) for fish. Basically, their size is small (less then 1 cm), and the amount would relatively large enough to feed fishes. Their would be a net and mechanical arm to catch sea monkey from their tank, and put into the fish tank. This idea could simulate a ecosystem, make the aquaponic system more indeendent, and add more fun and decorative value. Jessica brougt sea monkey today after camp, and would try to cultivate in lab, to prove its feasibility.
Cheap and automative sensor
For sensors part, we chosed test paper as a method to monitor the ion concentration, incluing NH4-, NO3-, Fe2+/Fe3+, which would be cheap. We would design and build an automative devie using test paper as core component, and a color sensor for detection. This devie would be based on arduino and cheap.
Different from the ion sensors, our solution will be cheap, but not precise as them. And we could not monitoring data in real time. But, unless for scientific research, detecting ion for one time in a week would be encough for alert. And it cost less than 2€ for a single test (for iron, ammnia and nitrate).
We would start building the device in this week.