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All Journal Teknik dan Ilmu Komputer JURNAL ELEKTRO ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JRST (Jurnal Riset Sains dan Teknologi) TESLA: Jurnal Teknik Elektro TEKNIKA Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Jurnal Darma Agung Indonesian Journal of Computing, Engineering, and Design Jurnal Pendidikan dan Teknologi Indonesia JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI Jurnal Teknik Sipil The International Journal of Education Management and Sociology Jurnal Pengabdian Masyarakat Charitas Jurnal Internasional Jurnal Informatika: Jurnal Pengembangan IT International Journal of Sustainable Building, Infrastructure and Environment Cylinder : Jurnal Ilmiah Teknik Mesin
Melisa Mulyadi
Program Studi Teknik Elektro Universitas Katolik Indonesia Atma Jaya
Religion Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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PENGARUH VARIASI TEMPERATUR TERHADAP HASIL PIROLISIS OLI BEKAS Enzo W.B Siahaan; Heri Andi Sitompul; Hodmiantua Sitanggang; Maria A. Kartawidjaja; Melisa Mulyadi
JURNAL DARMA AGUNG Vol 31 No 3 (2023): JUNI
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v31i3.3377

Abstract

Oli pelumas bekas merupakan limbah industri otomotif dalam jumlah besar yang berbahaya bagi lingkungan apabila dibakar atau langsung dibuang ke lingkungan. Berbagai metode digunakan untuk mendaur ulang minyak pelumas bekas, antara lain: proses acid-clay (proses filtrasi), proses ekstraksi pelarut (solvent extract process), dan pirolisis. Pada penelitian ini, proses pirolisis dilakukan dengan memanaskan minyak pelumas bekas di atas temperatur jenuhnya dalam reaktor bebas oksigen. Suhu pirolisis bervariasi antara 250 °C, 300 °C, 350 °C. Pirolisis dimulai pada suhu kamar (33,2 °C) dan suhu secara bertahap dinaikkan dengan laju pemanasan konstan sampai suhu pirolisis tertentu tercapai. Setelah suhu pirolisis tertentu tercapai, suhu dijaga konstan hingga proses pirolisis selesai. Hasil dari pirolisis adalah gas yang dapat terkondensasi, gas yang tidak dapat terkondensasi dan residu padat. Gas yang dapat terkondensasi kemudian dikondensasi dalam kondensor untuk menghasilkan produk cair yang berharga. Hasil penelitian menunjukkan bahwa pada suhu pirolisis 250 °C, 300 °C, dan 350 °C, dihasilkan produk cair berturut-turut mulai dari 270 mL, 400 mL, dan 600 mL dari semula 20.000 mL minyak pelumas bekas tanpa katalis. waktu ujian adalah 60 menit. Setiap 10 menit suhu diukur dan hasil yang diperoleh dalam pengujian juga diambil.
Sistem Deteksi Kemurnian Beras berbasis Computer Vision dengan Pendekatan Algoritma YOLO Nova Eka Budiyanta; Melisa Mulyadi; Harlianto Tanudjaja
Jurnal Informatika: Jurnal Pengembangan IT Vol 6, No 1 (2021): JPIT, Januari 2021
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/jpit.v6i1.2309

Abstract

Penelitian ini bertujuan untuk menerapkan sistem deteksi kemurnian beras terhadap campuran kotoran untuk dapat digunakan sebagai parameter nilai untuk mensortir kotoran yang terdeteksi pada proses kontrol kualitas beras. Sistem yang dikembangkan pada penelitian ini berbasis computer vision menggunakan kamera sebagai sensor. Data citra yang didapat dari kamera selanjutnya diproses untuk mengenali objek beras yang murni dan objek kotoran yang tercampur pada kumpulan beras. Penelitian ini berfokus pada algoritma deteksi objek batu atau kerikil (gravel) pada proses produksi beras. Proses deteksi objek pada penelitian ini menggunakan metode You Only Look Once (YOLO) v3. Secara keseluruhan sistem deteksi objek pada penelitian ini berjalan baik. Proses pelatihan model berhasil meminimalisir loss secara signifikan dengan nilai loss sebesar 1.89 di iterasi ke 1000 menjadi 0.16 di iterasi ke 15000. Seiring dengan keberhasilan proses pelatihan model, pengujian model pada penerapan proses deteksi juga berjalan baik yang ditunjukkan dengan nilai rerata akurasi sebesar 86.11%.
Studi Perencanaan Ulang Perpipaan Sistem Filtrasi Air Skala Rumah Tangga Dibyo Setiawan; Jakariya; Rani Anggrainy; Linda Wijayanti; Melisa Mulyadi
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 5 No 03 (2023): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/permadi.v5i03.120

Abstract

Clean water is a primary necessity for human survival, but due to limited access to clean water sources, wells are often used to meet this need. However, water from wells cannot be used directly because its quality varies depending on the soil conditions. Due to these differences, a filtration system needs to be installed in the treatment of raw water from the well. In the process, well water, after being processed through the filtration system, experiences a decrease in flow rate before being stored in water tanks. This creates a problem, namely excessive electricity consumption and insufficient water flow for household use. In this research, the researcher attempts to implement the SNI (Indonesian National Standard) standards in household-scale clean water treatment, whereas previous research focused more on water quality testing. The objectives of this research are to reduce electricity consumption and increase water flow to meet household needs. Regarding the research method, the researcher conducted a literature review, data collection, pre-improvement testing, redesigned pipeline planning, performance testing of the improvement results, and analysis of the outcomes. The results of this research show that for the 1-liter container testing, the required time has increased, with the fastest time being 6.4 seconds and the slowest being 6.7 seconds, compared to the initial testing, which had a range of 13.2 seconds to 13.6 seconds. As for electricity consumption, there has been a significant decrease, from 2.76 A in the initial testing to 1.76 A, resulting in an average power consumption of 200.3 watt, compared to the previous 603.7 watt.
Rancang Bangun Purwarupa Lengan Robot Berbantuan Raspberry Pi Ludony, Stephanie Graciela; Mulyadi, Melisa; Indriati, Kumala
Jurnal Elektro Vol 13 No 2 (2020): Jurnal Elektro: Oktober 2020
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v13i2.1979

Abstract

Persaingan di bidang industri telah mendorong untuk dilakukannya proses otomasi dalam mengoperasikan peralatan mesin-mesin industri dan kontrol proses untuk menggantikan operator tenaga manusia. Teknologi robot merupakan bagian dari otomasi yang banyak diterapkan di industri, salah satunya adalah lengan robot. Pada proses produksi, lengan robot digunakan untuk memindahkan objek. Dibutuhkan perancangan yang benar agar lengan robot dapat bergerak sesuai dengan kriteria yang diinginkan. Oleh karena itu pada penelitian ini dilakukan perancangan dan pembuatan purwarupa lengan robot yang memiliki lima derajat kebebasan atau Degree of Freedom (DoF) dan dilengkapi dengan pencapit objek. Sebagai pengendali lengan robot digunakan mikrokomputer Raspberry Pi 3 Model B+ yang diprogram dengan perangkat lunak python. Pada lengan robot terdapat kamera untuk mendeteksi warna objek agar lengan robot dapat memindahkan dan menempatkan objek sesuai kelompok warnanya. Pengujian terhadap rancangan lengan robot menunjukkan bahwa kamera dapat mengenali warna objek dan lengan dapat memindahkan objek sesuai pada tempatnya. Competition in the industrial sector has pushed for automation processes in operating industrial machine tools and process control to replace human labor operators. Robot technology is a part of automation that is widely applied in industry, one of which is the robot arm. In the production process, robotic arms are used to move goods. Correct design is needed so that the robot arm can move according to the desired criteria. Therefore, in this study, the design and manufacture of a robot arm prototype that has five degrees of freedom (DoF) is carried out and is equipped with a clamp. As a controller for the robot arm, a Raspberry Pi 3 Model B + microcomputer is used, which is programmed with python software. On the robot arm, there is a camera to detect the color of the object so that the robot arm can move and place object according to the color group. Testing of the robot arm design shows that the camera can recognize the color of goods and the robot arm can move object according to their place.
Internet of Things Analystics Menggunakan ELK Stacks Dalam Pabrik Perangkat Server Bryant, Kent; Mulyadi, Melisa; Panjaitan, MM Lanny; Angela Kartawidjaja, Maria; Rippun Gideon Manalu, Ferry
Jurnal Elektro Vol 16 No 1 (2023): Vol.16 No.1 April 2023: Jurnal Elektro
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v16i1.5127

Abstract

The internet is an information and communication technology that makes it easier for human activities to access data and send information into networks. For industry, the internet is also used to store data both internally and externally. There are several application facilities that are open source to help the industry save data via the internet to the cloud, one of which is the ELK stack. In this research, a simulation of a temperature and humidity monitoring system is designed for a server device factory and simultaneously calculates the amount of production. The data obtained is sent to Elasticsearch as a cloud so that the measurement data can be monitored and visualized in the form of graphs. The system is realized using a microcontroller, ESP8266, DHT11 sensor and proximity sensor. This design is equipped with an ELK system that can collect data and filter the required data so that it can be monitored and visualized in real time. The results of testing the temperature and humidity obtained are in the optimal value range and also proves that this research can be used on a large scale. It is recommended that this design be implemented in a factory or smart home to make it easier to obtain and retrieve the required data.
Simulasi Pengendali Suhu Menggunakan Algoritma Proportional, Integral, Derivative Berbasis Programmable Logic Controller Pada Modul Plant Honeywell Kanaya, Odillia; Mulyadi, Melisa; Indriati, Kumala
Jurnal Elektro Vol 16 No 2 (2023): Vol.16 No.2 Oktober 2023: Jurnal Elektro
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v16i2.5137

Abstract

The process of heating in the food industry is often can be found, start from inserting water and the heating process begin to reach a certain temperature, so the process of controlling temperature is one of the important things in the food industry. Temperature controller is an important thing, to maintain certain temperature, so that it did not exceed or lower than needed. This system uses Honeywell programmable logic controller (PLC) as the automation based system. In this research, Honeywell PLC controller will be using proportional, integral, derivative (PID) algorithm to maintain the required temperature. The research will be using the Honeywell module in Automation Laboratorium, Engineering Faculty, Atma Jaya Catholic University of Indonesia. The heating process will begin if the water level in the tank is filled to the required level. System will turn on the heater based on the PID output in the PLC program, so the temperature is maintained to a required setpoint 35oC. The simulation system can be controlled through a human machine interface (HMI) HCix08 that was made with XDesigner Plus software. The maintained temperature has ±5% tolerance or ±1,75˚C. The result of the research shows that the best parameter for setpoint 35˚C is using a PD controller with the values for Kp is 8 and Kd is 2.
Implementasi IoT dengan ESP 32 Untuk Pemantauan Kondisi Suhu Secara Jarak Jauh Menggunakan MQTT Pada AWS Austin, Calvin; Mulyadi, Melisa; Octaviani, Sandra
Jurnal Elektro Vol 15 No 2 (2022): Vol.15 No.2 Oktober 2022: Jurnal Elektro
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v15i2.5141

Abstract

The development of the internet of things (IoT) creates many new innovations in the industrial sector aimed at increasing effectiveness. One of them is to monitor the condition of industrial process machines remotely as discussed in this study. This monitoring can be done using a device connected to the internet. The design of this system requires a microcontroller with an ESP32 wifi module as a data receiver and sender. The data sent is data from the temperature sensor. The data is in the form of simulation data generated from the program and has a random number. Machine-to- server data communication uses the Message Queuing Telemetry Transport (MQTT) protocol. The entire machine-to-server, server-to-server communication system will be carried out in the cloud using a cloud computing platform, namely Amazon Web Services (AWS). The test results show that the payload and temperature data sent from the microcontroller can be stored in the database. To see the reliability of the system, two Normal and Stress Tests were carried out, with a success percentage of 100% fo r data storage to the database on two tests and 16.67% failure in sending data on the Stress Test. The two tests were arranged under different conditions.
Sistem Pemilahan Barang Berdasarkan Deteksi Label Menggunakan Vision Sensorr Henry, Carolus; Mulyadi, Melisa; Ghozali, Theresia; Wijayanti, Linda; Indriati, Kumala
Jurnal Elektro Vol 17 No 1 (2024): Jurnal Elektro: April 2024
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v17i1.5407

Abstract

Sorting goods based on the results of checking packaging labels is an important process in controlling production quality in industry. Many industries still carry out manual sorting and label checking processes, which results in low productivity levels and is susceptible to human error. This research develops an automation system for sorting goods based on label inspection using vision sensors, programmable logic controller (PLC), and robot arm. The system controlled by a PLC will read and detect damage to packaging labels by using VeriSens vision sensor and sort them using a robot arm according to predetermined stock keeping unit (SKU) categories, namely SKU 1, SKU 2, SKU 3, SKU 4, and rejected goods. The pneumatic system is used as an actuator to push goods onto the conveyor, moving the robot arm with three degrees of freedom and vacuum. Detection is carried out by applying the edge detection concept to read text, images and code that are reprocessed with the VeriSens Application Suite software. The success rate of the goods sorting system reached 90% with a reading speed of 0.389 seconds and a work process duration ranging from 21.54 seconds to 28.99 seconds.
Pendampingan Pengolahan Lele Menjadi Abon Lele Tanpa Minyak di Desa Sampora, Tangerang Mulyadi, Melisa; Indriati, Kumala
Jurnal Pengabdian Masyarakat Charitas Vol. 1 No. 1 (2021): Jurnal Pengabdian Masyarakat Charitas Juni 2021
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/charitas.v1i1.2690

Abstract

The community of Sampora village, located in Tangerang, has been able to cultivate catfish. In general, the catfish that is produced is directly sold without being processed. In order to increase the economic value of catfish, it is better if catfish is processed into ready-to-eat food products whose selling price can be higher than the price of raw catfish. One of the catfish processed products that can be made is catfish shredded. Shredded catfish has high protein and low cholesterol levels. In addition, shredded catfish is a durable food, can be processed in various flavors so that it is of great interest to the public. Therefore, through community service activities, the Faculty of Engineering collaborates with Village-Owned Enterprises (BUMDES), Sampora Village to provide counseling / assistance for mothers to process catfish into catfish floss without using oil. During this pandemic, assistance was provided in the form of online tutorials. With this assistance, it is hoped that the women of Sampora village can produce shredded catfish products that can be sold in food stalls prepared by BumDes.
Pendampingan Kegiatan Pemasaran Produk Kemasan Berbahan Lele Segar dan Lele Asap Indriati, Kumala; Mahyastuty, Veronica Windha; Mulyadi, Melisa; Silalahi, Agustinus
Jurnal Pengabdian Masyarakat Charitas Vol. 3 No. 01 (2023): Jurnal Pengabdian Masyarakat Charitas Juni 2023
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/charitas.v3i01.4360

Abstract

In accordance with the theme of the 77th Independence Day of the Republic of Indonesia "Recover Faster and Rise More Strong", it is necessary to revive the community's economy. Organization KNPI (Indonesian National Youth Committee) with youth organizations others in the Cisauk sub-district are trying to encourage the revival of the economy society, especially MSMEs driven by organizations youth or by citizen units. The activity held is a bazaar which is entitled “Cisauk Youth Fest”. For the implementation of this activity the Faculty Atma Jaya Unika Engineering partners with BUMDES to provide assistance in preparation for BUMDES participation in the "Cisauk Youth Fest" bazaar, which was carried out at Gate 3 of the BSD Intermodal Modern Market. This activity is in collaboration with the the manager of the BSD Cisauk Intermodal Modern Market for the provision of a place.
Co-Authors Abdul Azis Ahmad, Denis Alexander Kevin Angela Kartawidjaja, Maria Anwar, Hadrian Austin, Calvin Bachri, Karel Octavianus Bobby Sutrisno Bryant, Kent Catherine Olivia Sereati Christanto, Henoch Juli Evans Karlin Faishol, Akhmad Ferry Rippun Gideon Manalu, Ferry Rippun Gideon Fretes, Anthon de Gideon Manalu, Ferry Rippun Ginting, Ignatius HALIM, MARCHELL MORDEKHAI Hari Prasetijo Harlianto Tanudjaja Henry, Carolus Heri Andi Sitompul Hodmiantua Sitanggang Hutapea, Duma Kristina Yanti Indriati, Kumala Jakariya Jayawarsa, A.A. Ketut Jessica Eda Joevierdi, Joevierdi Jones, Danzel Maxdriel Samuel Jong, Susanto Julius Bata Kanaya, Odillia Karangga, Yusaphat Phosa Kartadinata, Budi Kartawidjaya, Maria A Kumar, Saurav Ludony, Stephanie Graciela Luhur Bayuaji, Luhur Lukas Lukas Mahyastuti, V. Winda Maria A. Kartawidjaja Maria Angela Kartawidjaja Nova Eka Budiyanta Nur, Tajuddin Nuri Aslami Panjaitan, MM Lanny Pebrianti, Dwi Pradipta, Candraruna Rani Anggrainy Reki Arbianto Rippun Gideon Manalu, Ferry Sandra Octaviani setiawan, Dibyo Siahaan, Enzo W.B Sidharta, So Mario Silalahi, Agustinus Siregar, Marsul Stefan Adriel Stephanie Graciela Ludony Sutanto, Daniel Denis Theresia Ghozali Tommy Yang Toto Tohir Veronica Windha Mahyastuty Wijayanti, Linda Wilson YANASTANTO, GUSTIESAR ALBARRY