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All Journal Jurnal IPTEK INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi Techne : Jurnal Ilmiah Elektroteknika Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Jurnal Jaringan Telekomunikasi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) West Science Interdisciplinary Studies West Science Interdisciplinary Studies
Hudiono Hudiono, Hudiono
Nursing Department, Polytechnic Health Ministry of Semarang
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Implementation of Solar Panels as an Alternative to Electric Power Used in WiFi-based Freezer Box Temperature Monitoring System (Case Study of NN Frozen Food Wajak) Junus, Mochammad; Karin Febri Absari; Hudiono, Hudiono; Waluyo, Waluyo
West Science Interdisciplinary Studies Vol. 2 No. 08 (2024): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v2i08.1222

Abstract

A freezer box temperature monitoring system using solar panels as alternative power is an important technology to ensure the quality of stored products. This research develops a WiFi-based temperature monitoring system that uses a DS18B20 temperature sensor, a PZEM-004T digital sensor, and an ESP8266 module to read and send real-time data to a website platform. Data is collected through a temperature sensor connected to the ESP8266 microcontroller, then displayed on the LCD screen and uploaded to the server for further monitoring via WiFi connection. The results show that this system successfully maintains the freezer box temperature at optimal conditions with an average temperature value of -24.82°C and a temperature range ranging from -28.81°C to -19.63°C. The voltage values are in the range of 197.10 V - 218.70 V, current between 0.02 A - 1.03 A, and power between 158 W - 186.80 W.
Optimization of 5 GHz Wi-Fi Network Performance Using Leaky Feeder Cables in Building Infrastructure Maharani, Vitania; Arinie S, Farida; Hudiono, Hudiono
West Science Interdisciplinary Studies Vol. 2 No. 09 (2024): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v2i09.1263

Abstract

Wi-Fi operates on three frequencies: 2.4 GHz, 5 GHz, and 6 GHz. The 2.4 GHz frequency experiences more interference due to its shared frequency with Bluetooth. Wi-Fi on the 5 GHz frequency encounters less interference but has lower transmission power. This research aims to optimize the 5 GHz Wi-Fi network by utilizing Leaky Feeder cables in the AI building of the State Polytechnic of Malang. The study includes the analysis and design of Leaky Feeder cables, where the access point transmits Wi-Fi signals at a 5 GHz frequency through the leaky feeder cable, which is designed with small slots to allow a small amount of signal energy to leak out. For the farthest signal coverage, the access point reaches a distance of 77 meters with a signal strength of -89 dBm after the installation of the leaky feeder cable. This indicates that the leaky feeder cable has helped extend the access point's signal coverage to a greater distance, albeit with lower signal strength.
Implementation of Solar Panels as an Alternative to Electric Power Used in WiFi-based Freezer Box Temperature Monitoring System (Case Study of NN Frozen Food Wajak) Junus, Mochammad; Karin Febri Absari; Hudiono, Hudiono; Waluyo, Waluyo
West Science Interdisciplinary Studies Vol. 2 No. 08 (2024): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v2i08.1222

Abstract

A freezer box temperature monitoring system using solar panels as alternative power is an important technology to ensure the quality of stored products. This research develops a WiFi-based temperature monitoring system that uses a DS18B20 temperature sensor, a PZEM-004T digital sensor, and an ESP8266 module to read and send real-time data to a website platform. Data is collected through a temperature sensor connected to the ESP8266 microcontroller, then displayed on the LCD screen and uploaded to the server for further monitoring via WiFi connection. The results show that this system successfully maintains the freezer box temperature at optimal conditions with an average temperature value of -24.82°C and a temperature range ranging from -28.81°C to -19.63°C. The voltage values are in the range of 197.10 V - 218.70 V, current between 0.02 A - 1.03 A, and power between 158 W - 186.80 W.
Optimization of 5 GHz Wi-Fi Network Performance Using Leaky Feeder Cables in Building Infrastructure Maharani, Vitania; Arinie S, Farida; Hudiono, Hudiono
West Science Interdisciplinary Studies Vol. 2 No. 09 (2024): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v2i09.1263

Abstract

Wi-Fi operates on three frequencies: 2.4 GHz, 5 GHz, and 6 GHz. The 2.4 GHz frequency experiences more interference due to its shared frequency with Bluetooth. Wi-Fi on the 5 GHz frequency encounters less interference but has lower transmission power. This research aims to optimize the 5 GHz Wi-Fi network by utilizing Leaky Feeder cables in the AI building of the State Polytechnic of Malang. The study includes the analysis and design of Leaky Feeder cables, where the access point transmits Wi-Fi signals at a 5 GHz frequency through the leaky feeder cable, which is designed with small slots to allow a small amount of signal energy to leak out. For the farthest signal coverage, the access point reaches a distance of 77 meters with a signal strength of -89 dBm after the installation of the leaky feeder cable. This indicates that the leaky feeder cable has helped extend the access point's signal coverage to a greater distance, albeit with lower signal strength.
Co-Authors Amalia Amalia Arinie S, Farida Azam Muzakhim Imamuddin Hadi, Achmad Farchan Hadiwiyatno Hariyadi, Aad Harvinanda, Akhmad Mukhibuddin Karin Febri Absari Koesmarijanto, Koesmarijanto M. Syirajuddin, M. Syirajuddin Maharani, Vitania Mochammad Junus Mohammad Taufik Nurul Hidayati P, Ridho Hendra Yoga Pramudya Imawan Santosa Prastiwi, Yuliana Rakhmania, Amalia Eka Soelistianto, Farida Arinie Taufik, Mochammad Waluyo Waluyo Widjajanti, Kristina Wijayanti, Rieke Adriati