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pH Neutralization Control System

pH Neutralization Control System. By: Firas I.Dweekat , Hafiz K.Irshaid . Supervised by: Dr. Raed Alqadi , Dr. Ashraf Armoush. Outlines. Abstract pH Problem Fuzzy control Methodology System Architecture Tank controller Master controller Controller communication (DLL )

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pH Neutralization Control System

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  1. pH Neutralization Control System By: FirasI.Dweekat, Hafiz K.Irshaid. Supervised by: Dr. RaedAlqadi, Dr. Ashraf Armoush.

  2. Outlines • Abstract • pH Problem • Fuzzy control • Methodology • System Architecture • Tank controller • Master controller • Controller communication (DLL) • MATLAB GUI • Result

  3. Abstract • Controlling pH degree • Fuzzy logic • MATLAB

  4. pH Problem • pH= - log[H+]

  5. Fuzzy control

  6. Methodology

  7. System Architecture

  8. Tank controller • PiC18f6420 • eTap continues level sensor. • Water pump.

  9. Etap continuous level sensor Sensor output: 1500 empty, 150 per inch 20%

  10. Master controller • Controlling tank microcontrollers. • Arduino UNO. • pH Meter with analog output. • Level sensor.

  11. I2C Protocol

  12. Handshake sequence diagram

  13. Getting sensors sequence diagram

  14. Controller communication (DLL)

  15. MATLAB GUI • Why we used MATLAB ? • Easy to change the controller • Can be used by non expert in microcontroller

  16. MATLAB GUI

  17. Fuzzy Controller

  18. Fuzzy inputs pH Error

  19. Fuzzy Outputs Acid and base pump speed

  20. Fuzzy Rules

  21. Results and conclustion

  22. Future work • More accurate sensors • Powerful microcontrollers • Adding more sensors • Flow • pH sensor for each tank

  23. Big Thanks

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