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ELAAH MODEL-MODEL PROPAGASI RADIO UNTUK SISTEM RADIO DUA-ARAH PITA VHF-UHF PADA AREA PERTAMBANGAN TERBUKA DAERAH TROPIS Diky Siswanto; Faqih Rofii; Chauliah Fatma Putri
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

Prasarana telekomunikasi diperlukan untuk menunjang operasional pertambangan dengan area sangat luas. Sistem komunikasi radio dua-arah yang paling layak dipertimbangkan untuk melayani area tersebut diatas. Agar sistem radio bisa menghasilkan performa yang optimal perlu adanya perencanaan jaringan radio, yang melibatkan penggunaan model propagasi radio. Permasalahan dari penelitian ini adalah cara menentukan model propagasi yang sesuai untuk sistem radio dua-arah pada pita very high frequency dan ultra high frequency (VHF-UHF) pada area pertambangan terbuka dengan kondisi lahan tidak beraturan. Tujuan dari penelitian ini adalah investigasi sejumlah model propagasi radio yang sesuai untuk sistem komunikasi radio dua-arah pada pita VHF-UHF di area pertambangan terbuka dengan kondisi geografis yang tak beraturan untuk daerah tropis, dengan studi kasus di wilayah pulau Kalimantan, Indonesia. Metode yang digunakan adalah penentuan obyek riset, penentuan parameter jaringan radio, investigasi model propagasi, studi literature, analisis dan evaluasi model, klasifikasi model. Hasil analisis menunjukkan Standard Propagation Model memiliki performa terbaik untuk prediksi sistem radio area pertambangan. Namun, metode ini memiliki kekurangan yang memerlukan kalibrasi cukup kompleks.
Design of Portable Automatic Weather Station Based on Raspberry PI Larangga Herdianzenda; Diky Siswanto; Istiadi Istiadi
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 1 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i1.3048

Abstract

Observation of the weather elements is very necessary for the welfare of mankind, the weather elements that are observed will be used as material to predict the weather in the future. Weather data can also be used to reduce the risk of adverse effects caused by the weather itself. To measure the weather with an automated monitoring system that is cheaper and of good quality, AWS was created. The AWS design using Raspberry Pi was made as a use of Raspberry Pi mini computer technology for the purposes of the Meteorology, Climatology and Geophysics Agency (BMKG). humidity, Rain Counter, wind direction, wind speed, air pressure, altitude, and GPS. Display data can be monitored via the web in the form of an Analog Gauge.
RANCANG BANGUN SMART BOX PENERIMA PAKET EKSPEDISI MENGGUNAKAN WEMOS D1 R2 DAN QR CODE SCANNER Arief Permana Putra; Diky Siswanto; Istiadi
JASEE Journal of Application and Science on Electrical Engineering Vol. 6 No. 2 (2025): JASEE-September
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v6i2.06

Abstract

Online shopping increases the need for a package receiving system that can operate when the recipient is not at home. This study aims to design and test an Internet of Things-based smart package receiving box using Wemos D1 R2, a QR Code scanner, a fingerprint sensor, solenoid door locks, and a web server. The system allows users to register package receipt numbers through a web interface. Couriers can open the package entry door by scanning a registered receipt code, while users can retrieve the package through fingerprint authentication. System testing was conducted on three main functions: receipt number registration to the database, QR Code-based package access, and fingerprint-based user access. The receipt number registration test showed that all five trials were successfully stored in the database, with a response time range of 2–3 seconds and an average of 2.4 seconds. QR Code validation activated the solenoid lock in all five trials. Fingerprint authentication also succeeded in all five trials under clean finger conditions, with an average door-opening response time of 5 seconds. These results indicate that the proposed prototype can support automatic package reception with controlled access, although wider testing under real delivery and network conditions is still required.