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We would like to provide WetLand with a monitor that is designed to inform the inhabitants of the energy being produced and stored. But more importantly, act as a warning system when the health of the batteries are in danger.  
We would like to provide WetLand with a monitor that is designed to inform the inhabitants of the energy being produced and stored. But more importantly, act as a warning system when the health of the batteries are in danger.  
== Criteria ==
The table below explains our criteria and list in them in order of importance.
{| class="wikitable sortable"
|-
!Criterion:
!Constraints:
!Weights:
|-
|Cost
|Less than $325
|10
|-
|Safety
|Won't harm anyone: Grounded and well insulated (OSHA)
|10
|-
|Accuracy
|Less than 5% error
|9
|-
|Maintainability
|Less than an hour a week
|9
|-
|Interpretability
|Easily understandable for the public
|8
|-
|Aesthetics
|Dystopian
|6
|-
|Reproducibility
|Anyone can recreate
|6
|}


== Design ==
== Design ==

Revision as of 08:41, 12 December 2013

Template:ENGR215inprogress


Keeping batteries healthy and people happy.
THIS PAGE IS UNDER CONSTRUCTION!!

WetLand is an art installation on the Delaware River, for more information visit the appropedia page: WetLand. WetLand is supplied with electricity by solar panels connected to four 12v batteries. The amount of sunlight and arrangement of batteries will affect the amount energy the system can produce. The amount of electricity stored in the batteries will change daily due to the varying concentrations of sunlight as well as the amount of loads(light bulbs, water pumps, laptops, etc.). It is important that the inhabitants of WetLand are informed on the state of the batteries as well as the amount of electricity being produced in order to accomodate their use accordingly.

Commercial and Hobbyist Energy Monitors

There are a good number of energy monitors out there. Most of which only work in the AC world (i.e. your homes, the coffee shop, the classic wall plug), and the monitoring systems designed for a PV system are normally tied in with an expensive charge controller. However we found some great inspirations out there, and their links are listed below listed below.</ref>

  • [1] : This guy makes some awesome arduino videos, most of which are dealing with solar panels.
  • [2] : This guys also makes some awesome arduino videos, as well as a lot of videos on electricity, most of which dealing with solar power.
  • [3] This is an awesome open-source energy monitor designed for household use.


Objective

We would like to provide WetLand with a monitor that is designed to inform the inhabitants of the energy being produced and stored. But more importantly, act as a warning system when the health of the batteries are in danger.

Criteria

The table below explains our criteria and list in them in order of importance.

Criterion: Constraints: Weights:
Cost Less than $325 10
Safety Won't harm anyone: Grounded and well insulated (OSHA) 10
Accuracy Less than 5% error 9
Maintainability Less than an hour a week 9
Interpretability Easily understandable for the public 8
Aesthetics Dystopian 6
Reproducibility Anyone can recreate 6

Design

Our deign passes the electricity of the batteries and solar panels through their own repective current sensor. The current sensor sends analog signal to an Arduino Uno which processes the data and displays ...... on our color changing LCD. The LCD is programmed to change color depending on how much energy is being used. Also, a piezo buzzer is set off when the energy consumed threatens the batteries. Wattage will be calculated using a real-time clock, an SD card, and a few lines of code. The monitor is powered by the electricity coming from the batteries; to do this we use a dc-dc step down converter, which drops the voltage low enough to power an Arduino. Below WILL BE a gallery of images and code sketches of our final design:

Next level heading

You may need deeper level headings. Just keep adding equal signs to get that.

Costs

You may describe your costs here.

Item Cost [$] Tax
Arduino Uno 25.00 1.81
Sensor Shield 10.88 0.79
Real Time Clock 6.90 0.50
RGB LCD 24.95 1.81
Piezo Buzzer 1.50 0.11
(2) Hall Effect Current Sensors 28.90 2.10
DC-DC Step Down Converter 12.49 0.91
SD Shield 8.99 0.65
Mounting Hardware 3.00 0.22
Wires from Battery 3.99 0.29
Wires from Solar Panels 2.50 0.18
Intercept Plug 3.99 0.29
Wood Mounting Surface Donated
Plexiglass Enclosure Donated
Misc. Terminals Donated
Misc. Hardware Donated
Solder Donated
Total 133.09 9.65
Final Cost 142.74

Discussion

Talk Talk Talk

Next steps

The next steps.

Conclusions

Your conclusions.

References

Contact details

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