Rancang Bangun Sistem Peringatan Dini Tanah Longsor Berbasis Mikrokontroler ATmega328 Menggunakan Metode Penginderaan Berat

Authors

  • Elvira Mardhatillah Jurusan Fisika FMIPA Universitas Andalas
  • Wildian Wildian Jurusan Fisika FMIPA Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.6.2.162-168.2017

Abstract

Suatu sistem peringatan dini tanah longsor berbasis mikrokontroler ATmega328 telah dirancang-bangun untuk mendeteksi dan menginformasikan pergeseran tanah permukaan. Metode yang digunakan adalah metode penginderaan berat dengan sistem sensor yang terdiri dari sebuah pegas (dengan panjang 10 cm, diameter 2 cm, dan konstanta pegas 245 N/m) dimana sebuah LED (Light Emiting Diode) dilekatkan kepada salah satu ujung pegas dan sebuah fotodioda pada ujung lainnya. Sistem sensor dipasang di dasar lereng. Ketika terjadi pergeseran tanah dalam arah bidang gelinciran, ujung atas pegas akan tertekan oleh gaya berat bidang tanah yang bergeser sehingga jarak antara LED dan fotodioda makin pendek. Sinyal ini kemudian dikondisikan sehingga dapat diproses oleh mikrokontroler. Sistem ini mampu mengaktifkan indikator LED untuk status siaga 1 (pergeseran tanah sebesar 1,03 cm), siaga 2 (2,14 cm), siaga 3 (3,24 cm), dan bahaya (4,33 cm; bunyi buzzer) dengan persentase error 1,46% dalam menghitung pergeseran tanah.

Kata kunci : fotodioda, mikrokontroler ATmega328, pegas, sistem peringatan dini, tanah longsor 

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Published

2017-04-04

How to Cite

Mardhatillah, E., & Wildian, W. (2017). Rancang Bangun Sistem Peringatan Dini Tanah Longsor Berbasis Mikrokontroler ATmega328 Menggunakan Metode Penginderaan Berat. Jurnal Fisika Unand, 6(2), 162–168. https://doi.org/10.25077/jfu.6.2.162-168.2017

Issue

Vol. 6 No. 2 (2017)

Section

Articles

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Copyright (c) 2017 Elvira Mardhatillah, Wildian Wildian

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