The document describes an automated control system for an aquaponics system that would monitor various environmental conditions like temperature, oxygen levels, and water quality. The system would include sensors to monitor these conditions and actuators to make corrections, like adjusting heaters or pumps. It would also notify owners if any manual corrections are needed. The system requirements include a controller, sensors for inputs like temperature and nutrients, and outputs like pumps and heaters. An overview diagram shows how the system components would work together in a block diagram.

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Aquaponics Control System
An automated system to control an aquatic life sustaining environment
Floddertje,E.(2010).

2. Aquaponics Control System Team Alpha Electronics
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Project Description
Our product is a control system which would not only monitor the plants and fish in their
symbiotic ecosystem, but also either correct the problem or notify the owner that specific actions
need to be taken. The system will monitor and adjust various aspects of the environment such as;
water temperature, oxygenation, lighting, and water quality. Control of grow- light timing and
monitor soil moisture content would also be included, and necessary fish food and nutritional
additions can also be periodically added to the system. This solution would allow even the busiest
of families to participate in supplementing their own healthy diet.
The system would be comprised of a controller, sensors, and various activators that would
correct specific issues with the ecosystem. The controller would monitor environmental conditions
and when correction is required, the system software would activate corrective measures that
would bring the system back within tolerance. When human interaction is required, the owner of
the system will be notified of the problem and the necessary corrective actions that they need to
perform.
System Requirements
 PLC or microprocessor with appropriate number of I/O ports and power for sensors
 PC:
o CD-ROM
o Windows 2000/XP/7
o 512 MB RAM and 20MB free hard disk space
o One serial communications port or USB port using USB-RS232
o Color SVGA monitor
 110V relay controlled power outlet strip

3. Aquaponics Control System Team Alpha Electronics
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 Solid State Relays
 Input Sensors:
o Water temperature
o Nitrate level
o Fluid flow
o Oxygen level
 Output Actuators:
o Thermostat
o Pump for aquaponics system water control
o Oxygen level pump
 Aquarium
o Fish
o Fish food dispenser
 Plant system
o Water conduit
o Plant containers

4. Aquaponics Control System Team Alpha Electronics
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List of Material
Table 1.0 List of Material

5. Aquaponics Control System Team Alpha Electronics
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Project Design
Figure 1.1 Aquaponics Project Block Diagram