automated irrigation system ais made by: firas abdulhaq gina kadri
TRANSCRIPT
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Automated Irrigation System
AIS
Made by:Firas AbdulhaqGina Kadri
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Contents
• Motivation• Solution• Introduction• Hardware Components• Software• Workflow• Problems/Solutions• Future work• Video
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Motivation
• The death of plants caused by the long absence of their owners.
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Motivation
• The exhausting boring process of irrigation.
• The expensive available irrigation systems.
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SolutionOur irrigation system
AIS
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Introduction
What is AIS?
AIS is an automatic irrigation system which eliminates the manual irrigation interventionof humans in a manner thatis extremely user friendly.
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Hardware Components 1. Unipolar Stepper Motor
The Unipolar stepper is used to control the Movement of the water hose in y-axis.
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2. Bipolar Stepper Motor
We used the bipolar stepper motor to move the cross moving bar module along the x-axis.
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3. Pump
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4. Sensors’ Matrix
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5. Microcontroller
We used Microchip PIC PIC18F4620
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6. L293D (H-Bridge)
We connected the bipolar stepper motor with the PIC through by H-Bridge IC.
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7. ULN2003A
We connected the Unipolar stepper motor with the PIC through the ULN2003A.
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8. Model
We have constructed our model of light wood to lightness and it’s low cost.
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9. Bearings
We used 8 bearings, 4 of them are positioned vertically in order to achieve the x-axis movement. The other 4 bearings are positioned horizontally in order to avoid deflection and deviation.
Horizontal Bearing Vertical Bearing
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9. Poly and Rope
We used a customized poly in order to achieve low friction movement.
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Software
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Workflow
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Workflow
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Workflow
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Workflow
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Workflow
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Problems
Problem 1:1. Cross beam movement
Since our first design depended only on 4 bearings (only the vertical bearings), the movement was deflective.
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Solution
We used extra 4 bearings that helped us to make the movement of the beam totally straight without any deflection.
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Problem 22. Rope friction
Because of the slippery movement of the rope on the poly and hence a lot of motor rotations that were wasted.
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Solution
By installing a rubbery piece on the stepper, the rope has a very good friction and so perfectly efficient movement without any wasted rotations of the motor.
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Problem 3• Sensor matrix
Soil moisture sensors available in the market cost 100$.We need 9 sensors so 900$ was a very expensive solution .
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Problem 3• Sensor matrix
Soil moisture sensors available in the market cost 100$.We need 9 sensors so 900$ was a very expensive solution .
100$
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Problem 3• Sensor matrix
Soil moisture sensors available in the market cost 100$.We need 9 sensors so 900$ was a very expensive solution .
X 9
900$
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Solution
We invented our own sensors using a very cheap material (row printed circuit board) so the total cost of the 9 sensors was almost 2$ instead of 900$.
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Solution
We invented our own sensors using a very cheap material (raw printed circuit board) so the total cost of the 9 sensors was almost 2$ instead of 900$.
2$
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Future work
• Turn it into business• Scale it to have larger customer segment