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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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Sistem Penyeleksi dan Pengelompokan Produk Berdasarkan Warna Berbasis Programmable Logic Controller Tommy Yang; Melisa Mulyadi
Jurnal Elektro Vol 8 No 1 (2015): Jurnal Elektro Unika Atma Jaya
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

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Abstract

Menghadapi persaingan dalam dunia usaha mendorong produsen seperti bluetooth speaker untuk membuat produknya dengan berbagai warna yang menarik. Untuk mengelompokan hasil produk sesuai warnanya dibutuhkan suatu sistem yang dapat memilah  berdasarkan warna produk. Sistem ini dirancang dengan menggunakan programmable logic controller sebagai unit pengontrol,sistem pneumatik sebagai penggerak dan sensor warna serta mikrokontroler untuk mengolah keluaran sensor warna. Ada tiga warna produk yang dikelompokan yaitu warna merah, biru dan hijau. Berdasarkan hasil pengujian yang telah dilakukan sistem dapat memisahkan dan mengelompokan barang berdasarkan warna produk.
Analisis Dampak Pemasangan Grid Tie Inverter pada Interkoneksi antara Jaringan PLN dan Solar Cell Terhadap Faktor Daya dan Harmonisa Sistem Jessica Eda; Melisa Mulyadi; Budi Kartadinata; Harlianto Tanudjaja
Jurnal Elektro Vol 10 No 2 (2017): Oktober 2017
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

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Abstract

ABSTRAK Penggunaan solar cell menunjukkan peralihan sumber energi dari energi fosil kesumber energi terbarukan semakin meningkat. Pembangkitan energi listrik berbasis cahaya matahari itu semakin berkembang, dari yang harus menggunakan baterai, hingga dapat digunakan paralel dengan jaringan elektris yang sudah ada. Sistem yang dapat memadukan sistem solar cell dan electrical grid disebut sistem on-grid. Komponen penting dalam sistem on grid tersebut adalah Grid Tie Inverter (GTI) yang dapat mensinkronkan tegangan keluaran solar cell dengan tegangan penyedia suplai listrik utama, yaitu Perusahaan Listrik Negara (PLN). Penyambungan GTI pada sistem solar cell ini akan memberikan dampak tertentu pada jaringan yang sudah ada, khususnya harmonisa sistem. Penelitian ini bertujuan untuk menganalisis dampak penggunaan GTI pada jaringan utama, baik ditinjau dari nilai harmonisa yang akan mengindikasikan distorsi yang terjadi, maupun dari besar faktor daya total. Pengukuran dilakukan dengan alat power quality meter dengan membandingan besaran pengukuran pada kondisi PLN tanpa solar cell dan kondisi PLN dengan solar cell. Besaran yang diambil pada pengukuran meliputi besaran parameter harmonisa seperti tegangan, arus, daya, Total Harmonic Distortion (THD) tegangan dan THD arus. Dari analisis yang dilakukan, nilai distorsi tegangan sistem PLN dengan solar cell lebih kecil dari distorsi tegangan PLN karena adanya filter pada GTI yang digunakan. ABSTRACT During the last decade, the use of solar cell is increasing due to the changing trend of energy resources, from fossil energy to the renewable energy. Power generating based on solar energy is getting developed and resulted in batteryless solar cell. The system that can combine the solar cell system and the electrical grid described as on grid system. One of the most substansial component in on grid system is the Grid Tie Inverter (GTI) that could synchronize the output voltage of solar cell with the output voltage of the main utility grid, which is Perusahaan Listrik Negara (PLN). The connection of GTI in solar cell system will have certain impacts to the main grid, especially the system’s harmonics. This paper aims to analyze the effect of the use of GTI to the main supply to its harmonics value, that indicates the distortion level, and also to its total power factor. Power Quality Meter been used as the measurement instrument to compare the measurement value in two conditions, PLN with and without solar cell. The research has been done by measuring harmonic parameter such as voltage, current, power, THD of voltage and THD of current. The result of the measurement shows that the distortion value of PLN with solar cell is lower than the distortion value of PLN without solar cell because of the addition of filter in the GTI
ANTRIAN PEMESANAN TEMPAT DI RESTORAN BERBASIS SMARTPHONE Alexander Kevin; Melisa Mulyadi
Jurnal Elektro Vol 11 No 2 (2018): Oktober 2018
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

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Abstract

Ketersediaan tempat di restoran menyebabkan pelanggan restoran harus mengantri sampai ada tempat kosong. Biasanya pelanggan mencatatkan namanya dan jumlah orang yang akan makan ke pelayan di restoran kemudian harus menunggu diluar restoran sampai dipanggil oleh pelayan. Sistem antrian seperti ini dapat diubah menjadi lebih mudah dan menyenangkan bagi pelanggan dengan mengembangkan aplikasi antrian menggunakan smartphone. Pelanggan dapat memasukkan data antrian ke smartphone yang berbasis android. Bila pelanggan tidak menggunakan smartphone berbasis android maka ia dapat memasukkan data antrian lewat keypad matriks yang ada didepan restoran selanjutnya data tersebut diolah oleh arduino kemudian dikirim ke internet melalui node MCU. Seluruh data antrian baik yang dimasukkan melalui smartphone atau keypad matriks akan tersimpan pada database yang berada di internet. Bila sudah tersedia meja bagi pelanggan yang berada pada antrian, maka sistem akan mengirimkan perintah untuk memanggil pelanggan itu melalui aplikasi android atau short message service (SMS). The limited space at the restaurant causes customer to queue until there is an empty space. Usually customers register their names and the number of people who will eat to the waiter in the restaurant then have to wait in front of the restaurant until called by the waiter. Queuing systems like this can be changed to be easier and more enjoyable for customer by developing a queue application using a smartphone. Customer can enter queue data to an Android-based smartphone. If a customer does not use an Android-based smartphone then he can enter the queue data via the matrix keypad in front of the restaurant then the data is processed by Arduino and sent to the internet via the MCU node. All queue data either entered via a smartphone or matrix keypad will be stored in a database that is on the internet. When a table is available for customer who are in the queue, the system will send an order to call the customer through an android application or short message service (SMS).
PENGEMBANGAN MOBILE ROBOT MULTIPLATFORM “ATMAROBO” SEBAGAI SARANA PENINGKATAN MINAT REMAJA DI BIDANG ROBOTIKA Evans Karlin; Nova Eka Budiyanta; Melisa Mulyadi; Harlianto Tanudjaja
Jurnal Elektro Vol 12 No 2 (2019): Oktober 2019
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

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Abstract

This study aims to develop an attractive multiplatform learning robot and supported by a programming system that is easily understood by adolescents. Learning robots developed are wheeled educational robots that can be controlled manually using a controller (manual transporter) and automatically using sensors (line follower and automatic avoider). As data processing on the robot, two Arduino Nano are used with the help of Arduino IDE software, and for sending data, serial communication between Arduino Nano is used. The sensors used in this robot are light based sensors for line follower and ultrasonic for automatic avoiders. In addition, there is a separate controller from the robot in the form of the MIT APP Inventor program installed on a smartphone device and connected to the Bluetooth module on the robot for manual transporter. From the test results, the robot runs accurately following the black or white lines and successfully moves items, for automatic avoiders the robot can detect walls and follow the grooves of the wall with an angle of 90 degrees, while for manual transporter robots can be controlled using a controller application on an Android-based smartphone developed with MIT APP Inventor.
PENGGUNAAN HUMAN MACHINE INTERFACE UNTUK SIMULASI PENGOLAHAN MINYAK KELAPA SAWIT Stefan Adriel; Melisa Mulyadi; Budi Kartadinata; Linda Wijayanti
Jurnal Elektro Vol 13 No 1 (2020): Jurnal Elektro: April 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.v13i1.1821

Abstract

Technological developments have brought changes in the industry, the process that was originallydone by humans has turned to the automation system. In this paper the application of the automationsystem is carried out on the processing of palm oil. The system is made in the form of a simulation ofan automation system using the Programmable Logic Controller (PLC) and Human MachineInterface (HMI). Automation of palm oil processing using PLC with the help of Unity Pro XLsoftware, monitoring processes using HMI with the help of Vijeo Designer Basic software, and analoginput simulated using a potentiometer. PLC receives and processes data from both analog inputs andfrom HMI. The process of cooking and extracting palm oil carried out by the PLC is displayed on theHMI. From the test results, it is known that the PLC can communicate with HMI and HMI can displaythe processes that occur in palm oil processing.
Rancang Bangun Purwarupa Lengan Robot Berbantuan Raspberry Pi Stephanie Graciela Ludony; Melisa Mulyadi; Kumala Indriati
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.
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.
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 Duma Kristina Yanti 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 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