Over and Under Voltage
An Electrical Engineering Research
Presented to the Faculty of the College of Engineering
University of Southeastern Philippines
Obrero, Davao City
AUTOMATIC WATER SPRINKLER FOR PLANT CULTIVATION DEVELOPMENT
In Partial Fulfillment of the Requirements for the
Degree of Bachelor of Science in Electrical Engineering
By:
Brillantes, Kevin B.
Canja, Janelle Jean
De Chavez, Edrian
Mejares, Brix Xavier
October 21, 2014 ii APPROVAL SHEET
In partial fulfillment of the requirements for the degree, Bachelor of Science in Electrical Engineering, this thesis entitled AUTOMATIC WATER SPRINKLER FOR PLANT CULTIVATION DEVELOPMENT prepared and submitted by Kevin B. Brillantes, Janelle Jean Canja, Edrian De Chavez and Brix Xavier Mejares. ENGR. DONLEY GLENN MABUNGA EE Research Adviser
Approved by the Committee and Oral Defense with a grade of _____________. ________________ ________________Panel Member Panel Member
Accepted as a partial fulfilment of the requirements for the degree Bachelor of Science in Electrical Engineering.
DR. NELSON FUENTES
Dean, College of Engineering iii ABSTRACT
This research project entitled “automatic water sprinkler for plant cultivation development” was conducted on July to October 2014 to provide a device that would automatically operate as a water sprinkler that is necessary for plant growth. The main objective of this project was to sustain a more constant source of water for plants.
A circuit with a temperature detector was intentionally designed that recognizes any rise of soil temperature. The thermistor, temperature detector, is a special type of resistor whose resistance varies significantly with the temperature.
As the temperature of the soil rises, the thermal device changes its internal resistance, saturating the bipolar junction transistors, permitting the current to flow, triggering the relay, and thereby, activating the solenoid valve.
Presented to the Faculty of the College of Engineering
University of Southeastern Philippines
Obrero, Davao City
AUTOMATIC WATER SPRINKLER FOR PLANT CULTIVATION DEVELOPMENT
In Partial Fulfillment of the Requirements for the
Degree of Bachelor of Science in Electrical Engineering
By:
Brillantes, Kevin B.
Canja, Janelle Jean
De Chavez, Edrian
Mejares, Brix Xavier
October 21, 2014 ii APPROVAL SHEET
In partial fulfillment of the requirements for the degree, Bachelor of Science in Electrical Engineering, this thesis entitled AUTOMATIC WATER SPRINKLER FOR PLANT CULTIVATION DEVELOPMENT prepared and submitted by Kevin B. Brillantes, Janelle Jean Canja, Edrian De Chavez and Brix Xavier Mejares. ENGR. DONLEY GLENN MABUNGA EE Research Adviser
Approved by the Committee and Oral Defense with a grade of _____________. ________________ ________________Panel Member Panel Member
Accepted as a partial fulfilment of the requirements for the degree Bachelor of Science in Electrical Engineering.
DR. NELSON FUENTES
Dean, College of Engineering iii ABSTRACT
This research project entitled “automatic water sprinkler for plant cultivation development” was conducted on July to October 2014 to provide a device that would automatically operate as a water sprinkler that is necessary for plant growth. The main objective of this project was to sustain a more constant source of water for plants.
A circuit with a temperature detector was intentionally designed that recognizes any rise of soil temperature. The thermistor, temperature detector, is a special type of resistor whose resistance varies significantly with the temperature.
As the temperature of the soil rises, the thermal device changes its internal resistance, saturating the bipolar junction transistors, permitting the current to flow, triggering the relay, and thereby, activating the solenoid valve.
References: http://www.instructables.com/id/Arduino-Automatic-Watering-System-For-Plants/http://www.gardeners.com/how-to/when-to-water/8108.htmlhttp://www.dummies.com/how-to/content/when-to-water-vegetable-plants.htmlhttp://www.weekendgardener.net/vegetable-gardening-tips/soil-temperature-030803.htmhttp://sai-dono.blogspot.com/2013/02/week-6-chapter-2-literature-review.html