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All Journal Jurnal Elektronika dan Telekomunikasi Jurnal ULTIMA Computing Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Instrumentasi dan Teknologi Informasi (JITI)
Adik Susilo Wardoyo
Politeknik Gajah Tunggal
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Degradation of Shielding Performance of Metallic Sheet due to Aperture Configuration and Dimension at 2.4 GHz Adik Susilo Wardoyo; Mudrik Alaydrus
Jurnal Elektronika dan Telekomunikasi Vol 18, No 1 (2018)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v18.9-14

Abstract

The increasing demand on wireless connectivity has opened new and modern communication systems. Many wireless systems, for example Wireless Fidelity (Wi-Fi), Bluetooth, ZigBee, share the unlicensed frequency region around 2.4 GHz. Due to intensive application of Wi-Fi systems, there are certain disturbance potentials observed. The Wi-Fi signals cause interference to ZigBee networks which are used for smart grid applications. In this work, the shielding effectiveness of a metallic enclosure with several apertures is studied. Based on analytical expression from the literature, the shielding effectiveness by varying the sheet thickness, number of apertures, and aperture patterns is calculated. Several measurements of Received Signal Strength Indicator (RSSI) are carried out. The measurements are conducted on a shielded room to isolate the measurement from other unknown signal sources. The calculation and measurement of shielding effectiveness confirmed that more apertures on a shielding sheet will reduce the Shielding Effectiveness (SE). SE for one aperture for the case sheet thickness 0.7 mm and diameter of 12 mm reduce from 46.28 dB to 14.24 dB for 6 apertures. Bigger aperture diameters will also degrade the SE from 46.28 dB to 5.27 dB for aperture diameter 24 mm. The same condition can be concluded for the thickness 1.4 mm for aperture diameter of 12 mm. However a slightly different measurement results are obtained for the thickness 1.4 mm and aperture diameter of 24 mm. The thickness plays a significant role to attenuate the wave, so that SE is bigger than the calculated one.
Rancang Bangun Sistem Record dan Monitoring Temperature dan Humidity Creel Room KSC di Plant K PT STU Aryo Wijoseno; Maretha Rhea Almyra; Adik Susilo Wardoyo
Jurnal Instrumentasi dan Teknologi Informatika (JITI) Vol. 3 No. 1 (2021): November
Publisher : Prodi D3 Teknik Elektronika Politeknik Gajah Tunggal

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Abstract

Creel Room adalah ruangan yang berfungsi untuk meletakkan kawat baja sebelum proses Calendering. Parameter di dalam ruangan tersebut adalah temperature dan humidity. Parameter ini dicatat pada check sheet setiap beberapa kali dalam 1 shift. Kendala sistem record saat ini adalah sistem record yang masih menggunakan kertas dan data yang dicatat hanya nilai rata-rata dari 5 sensor di dalam ruangan. Berdasarkan permasalahan yang ada, salah satu jawaban untuk masalah ini adalah menyusun sistem yang dapat merekam parameter dari 5 sensor melalui aplikasi desktop dan membangun sistem monitoring untuk parameter ini melalui sebuah website. Sistem dirancang menggunakan metode Unified Modelling Language (UML). UML adalah jenis representasi dari suatu sistem secara garis besar untuk memudahkan analisis dan perancangan sistem yang dibuat. Aplikasi record data yang dibuat dengan menggunakan Visual Studio Community akan membaca data sensor yang ada pada PLC secara real-time. Data sensor tersebut nantinya dikirim ke database lokal dan server web. Data yang berada pada database server web akan ditampilkan pada website monitoring yang dibuat dengan menggunakan Visual Studio Code. Website ini dikelola melalui panel hosting dari layanan online Hostinger.
Analisa Desain Rangka Alat Compact Heat Induction Press Menggunakan Metode Finite Element Analysis Ilham Taufik Maulana; Ahmad Zohari; Adik Susilo Wardoyo; Pilar Adhana Heryanto
Jurnal Engine: Energi, Manufaktur, dan Material Vol 5, No 2 (2021)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v5i2.894

Abstract

In manufacturing technology, accuracy, effectiveness, and efficiency are important factors because the use of technology is expected to maximize quality and quantity with existing resources. The manufacturing process is the process of making products starting with the selection of raw materials and the machining process following the design to suit the needs. In other words, design is the main thing before carrying out manufacturing activities. Meanwhile, in designing a machine, it is necessary to have a material selection procedure according to the application conditions. The strength of the material can be obtained by simulating it using the Finite Element Analysis (FEA) method. This simulation aims to determine the maximum safe load limit on the tool frame design. In this study, the design of the tool frame made was given 5 loading treatments, the minimum loading was 50kg and the maximum loading was 200kg. Based on the simulation results, the maximum safety factor occurs at 50 kg loading of 10,019 ul and the minimum safety factor occurs at 200 kg loading with a value of 3.60064 ul. Based on the analysis of the load given to the frame of the compact press and sintering tool that the designed tool is safe.
An Analysis Of The Performance Of Autonomous Navigation On An Ardupilot-Controlled Rover Adik Susilo Wardoyo; Indri Purwita Sary; Ilham Taufik Maulana
Ultima Computing : Jurnal Sistem Komputer Vol 14 No 2 (2022): Ultima Computing : Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/sk.v14i2.2844

Abstract

Monitoring forests is one of the strategies in the overall preventive strategy. Monitoring the forest can quickly and permanently manage how tree illnesses emerge, spread, and evolve. To help monitor forest fires, a robot platform that can operate independently and assist in data collection can be created. In this paper, the accuracy of the Ardupilot-controlled autonomous navigation system of the rover was examined. The metode are used is experimental study, the study consists of a comparison between the GPS rover log and the SITL simulation within the mission planner tool. The average accuracy achieved by altering the route's distance and shape is 94.58%. The lengthy path may be the source of the rover's inaccurate autonomous navigation. In this case, the turning angle problem has no real effect on how well and accurately the rover navigates on its own.
Co-Authors Ahmad Zohari Aryo Wijoseno Ilham Taufik Maulana Maretha Rhea Almyra Mudrik Alaydrus Pilar Adhana Heryanto Sary, Indri Purwita