Microcontroller-based data logging system for measuring temperature, humidity and total rainfall

Date

10-2004

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Rogel Mari D. Sese

Abstract

A microcontroller-based weather monitoring system was designed and utilized! An implemented data logger was used for measuring temperature. humidity, and total' rainfall. The SHTI I sensor was interfaced into the system to measure both the temperature and humidity A tipping bucket rain gauge was also designed and interfaced to measure the total rainfall An existing data logger was utilized and reprogrammed. The system was designed to automatically collect data from the sensors for a certain length of time and store them in non-volatile memories for retrieval using serial interface to a personal computer. The study has three main parts namely hardware design, software design. and data collection. The sensors used were calibrated against a standard. The whole system was subjected to a week of data gathering set at an hourly logging interval. Readings of temperature and humidity from an existing automatic data logger system were compared with data from the National Agrometeorology Station (NAS) and showed a linear relationship. The tipping bucket rain gauge was calibrated and is compared to the existing tipping bucket rain gauge found in NAS. The results showed that the system is comparable to other standard commercial data logger systems. The designed system provides a km cost alternative to existing expensive systems on the market today.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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