Final Progress All sensors work Full-scale unit with plants - - PowerPoint PPT Presentation

Strawberry Hydroponics with Monitoring System

Final Review

Final Progress

• All sensors work
• Full-scale unit with plants

built on Phil’s farm

• EC sensor still not

electroplating

• EC sensor accurate to

plus or minus 150 PPM

• Relay cutting pump off

with use of water level sensor

Personal Observations

Ryan: Very easy-to-build design but might not survive for more than a few years without replacement Ray: Electrical system is made comprehensible, but could be more advanced if not limited by DIY form

• f implementation.

Kevin: Mechanical system seems like it will function well enough. Construction went smoothly enough, confident Phil can replicate what we did. Thierno: Theoretically, scaling is feasible which is

• great. What will happen to the structure and the

electronics in extreme weather? Jerry: Designing the software for the system seems straightforward but implementing the code with the external electronics prove to be a challenge Nate: Simple design one all materials are purchased, system has potential for leaks but can easily be

• sealed. Electrical system could be made easier to

implement with more expensive sensors

Potential Future

• Making this widely available allows for others to copy and improve upon the

design

• Invest more? Hard to tell without knowing how well strawberries grow
• Higher quality sensors could be added such as temperature and a higher

resolution water flow sensor

• Add more electrical outlets to electrical box
• Design will be iterated at least 4 more sets of 5 channels according to Phil.

Possibly more after that will small variation on the design.

• Some sensors may not be helpful or accurate over time (flow, EC)
• Adjustable channels may still be a good feature to add.
• Best to experiment with slight variations (channels, slope, flow-rate) before

iterating the design too much

What would we have done differently

• Potentially purchase all industrial grade sensors (Atlas Scientific), the cost of

electronics would increase around 200-300 dollars but it would ensure very low maintenance electronically and would make electrical build much easier

• More focus on long term testing of sensors, 1 month was not enough to

ensure they all worked 100%

• Could have added more features to system like easily adjustable channels,

mixing of solution outside of channels, screen, etc.

Final BOM

Final BOM

Pictures

Pictures cont.

Pictures cont.

Updated Problem Tracking

Updated Problem Tracking