Rancang Bangun Sistem Pengukur Curah Hujan Jarak-Jauh Real Time Sebagai Peringatan Banjir Lahar Dingin
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2010
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/28216/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11279 |
Daftar Isi:
- Abstract The aim of this research is to set up a sufficient system, which is used for real-time rain gauge telemonitoring as the early warning system for cold "lava avalanche of Mount Merapi. The system contains a remote station (transducer, Counter Timer, CPM Frequency Converter, FSK Modulator, and TxIRx) and a controller station (TxIRx, FSK demodulator, and personal computer) . Data managements which are developed in this research are expected to be used in a real time a rain gauge telemonitoring of Mount Merapi. The characteristics of data communication in this system are unguided type with air as the media, asynchronous serial mode, simplex mode transmission, with audio modulation and frequency shift keying modulation. A pair of handytransceiver was use in data transmitting with VHFIUHF wave at Amateur Radio Data Frequency (144,100 MHz and 431,125 MHz). Rainfall data changes 60 ml in 10 seconds was sent with the variation of sound frequency, started at 645 Hz with delay time 0.0168 seconds up to 2.9931Iz with delay time 0,0015 seconds. . This research is expected to give valuable information for the telemonitoring SJlstem engineering development, especially for engineers who work in the field of telemonitoring system and for the people who live in the Mount Merapi surrounding Keywords: telemonitoring, rain gauge, FSK, modulation