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All Journal TEKNIK PROtek : Jurnal Ilmiah Teknik Elektro CYCLOTRON Conference on Innovation and Application of Science and Technology (CIASTECH) Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS Jambura Journal of Electrical and Electronics Engineering JASEE Journal of Application and Science on Electrical Engineering JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) Prosidia Widya Saintek
Sabar Setiawidayat, Sabar
Widyagama University of Malang
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation

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Journal : JASEE Journal of Application and Science on Electrical Engineering

 1 
METODE HIDDEN MARKOV MODEL UNTUK PEMANTAUAN MASA SUBUR WANITA BERBASIS ANDROID Wicaksana, Irsandi Satria; Setiawidayat, Sabar; Effendy, Dedi Usman
JASEE Journal of Application and Science on Electrical Engineering Vol. 1 No. 01 (2020): JASEE
Publisher : Teknik Elektro Fakultas Teknik Universitas Widyagama Malang

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Abstract

Hingga saat ini masa subur atau ovulasi pada wanita dapat di ketahui dengan metode servik, monitoring suhu basal, metode peak day dan metode standard day. Dalam penelitian ini dikembangkan metode saliva ferning, yaitu dengan mendeteksi melalui kristal air liur. Citra saliva ferning didapat melalui mikroskop digital dengan perbesaran 100 kali. Citra akan diklasifikasikan berdasarkan pola citra dengan pola acak, pola titik garis dan pola garis yang dominan. Berdasarkan perbedaan pola citra maka akan diklasifikasikan untuk menentukan masa tidak subur, masa transisi, dan masa subur yang sedang berlangsung. Nilai piksel dari citra akan diidentifikasi menggunakan metode hidden markov model dan ditampilkan pada smartphone android. Hasil penelitian menunjukkan nilai piksel, untuk masa tidak subur sebesar 8463 hingga 33302, masa transisi 39442 hingga 77315 dan masa subur diatas 77702, dengan akurasi identifikasi sebesar 95%. Sampel saliva yang baik yaitu saliva yang tidak terkontaminasi, umumnya di pagi hari setelah bangun tidur.
METODE PARTICLE SWARM OPTIMIZATION UNTUK MENENTUKAN DAYA OPTIMAL TURBIN GAS PLTGU GRATI BERDASARKAN HEAT RATE Wahyudi, Mohammad Faris; Setiawidayat, Sabar; Hunaini, Fachrudin
JASEE Journal of Application and Science on Electrical Engineering Vol. 2 No. 01 (2021): JASEE
Publisher : Teknik Elektro Fakultas Teknik Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v2i01.161

Abstract

Pembangkit tenaga listrik thermal merupakan suatu pembangkit yang menghasilkan energi listrik yang berasal dari energi thermal. Energi thermal bisa dihasilkan melalui pembakaran bahan bakar berupa gas ataupun batubara. Berdasarkan hal tersebut, pada pembangkit tenaga listrik thermal konsumsi bahan bakar sangatlah mempengaruhi biaya produksi energi listrik, sehingga diperlukan suatu teknik pengoperasian pembangkit yang optimum. Salah satunya pada PT Indonesia Power UPJP Perak Grati yang merupakan perusahaan pembangkitan tenaga listrik yang dalam pengopeasiannya memerlukan cara dalam penghematan bahan bakar gas berdasarkan nilai heat rate (Kcal/kWh) khususnya dalam penghematan biaya pokok produksi. Pada penelitian ini Particle Swarm Optimization (PSO) digunakan sebagai metode untuk penentuan daya optimal pada generator Pembangkit Listrik Tenaga Gas (PLTG) Perak Grati. Berdasarkan hasil penelitian, dihasilkan adanya penghematan konsumsi gas antara metode PSO dengan kondisi aktual, dimana saat permintaan daya 310 MW, terjadi penghematan konsumsi gas sebesar 0.5968 BBTU/h atau setara dengan Rp 57.168,00/h.Pembangkit tenaga listrik thermal merupakan suatu pembangkit yang menghasilkan energi listrik yang berasal dari energi thermal. Energi thermal bisa dihasilkan melalui pembakaran bahan bakar berupa gas ataupun batubara. Berdasarkan hal tersebut, pada pembangkit tenaga listrik thermal konsumsi bahan bakar sangatlah mempengaruhi biaya produksi energi listrik, sehingga diperlukan suatu teknik pengoperasian pembangkit yang optimum. Salah satunya pada PT Indonesia Power UPJP Perak Grati yang merupakan perusahaan pembangkitan tenaga listrik yang dalam pengopeasiannya memerlukan cara dalam penghematan bahan bakar gas berdasarkan nilai heat rate (Kcal/kWh) khususnya dalam penghematan biaya pokok produksi. Pada penelitian ini Particle Swarm Optimization (PSO) digunakan sebagai metode untuk penentuan daya optimal pada generator Pembangkit Listrik Tenaga Gas (PLTG) Perak Grati. Berdasarkan hasil penelitian, dihasilkan adanya penghematan konsumsi gas antara metode PSO dengan kondisi aktual, dimana saat permintaan daya 310 MW, terjadi penghematan konsumsi gas sebesar 0.5968 BBTU/h atau setara dengan Rp 57.168,00/h.
MONITORING EMISI KENDARAAN BERMOTOR KARBON DIOKSIDA (CO_2), KARBON MONOKSIDA (CO) BERBASIS ARDUINO DAN ESP8266 Zakaria, Risman; Priyandoko , Gigih; Setiawidayat, Sabar
JASEE Journal of Application and Science on Electrical Engineering Vol. 5 No. 1 (2024): JASEE-March
Publisher : Program Studi Teknik Elektro - Fakultas Teknik - Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jasee.v5i1.487

Abstract

Motorized vehicles are currently circulating a lot on the streets. Every motor vehicle produces what is called exhaust gas or what we often call motor vehicle emissions. By monitoring the exhaust gases produced by the vehicle, it means that the vehicle owner is much more concerned about the pollutants that can be produced by the vehicle itself, so that the vehicle owner can minimize the pollutants produced by the vehicle. This tool for monitoring the emission of wifi-based motor vehicles uses several components including Arduino uno, nodemcu esp8266, mq2 sensor, mq7 sensor with applications as program support, namely Arduino Ide, Firebase. The testing of this motor vehicle emission monitoring device is carried out by placing the mq2 and mq7 sensors right in front of the exhaust as the place where the vehicle's emissions come out. The comparison of the vehicle test results was carried out to see how much carbon monoxide and carbon dioxide levels were produced in each vehicle after being tested using the tool where the average carbon monoxide content for avansa vehicles was 13.56 ppm, ignis vehicles was 12.84 ppm, and innova vehicles were 175.02 ppm. While the recommended carbon monoxide level < 25 ppm, vehicles that have carbon monoxide levels above (Threshold Value) do not pass the emission test. And for the average carbon dioxide level testing in avanza vehicles of 385.7 ppm, ignis vehicles of 302.6 ppm, innova vehicles of 956.4 ppm. While the recommended carbon dioxide level < 450 ppm, vehicles that have a carbon dioxide content value above (Threshold Value) do not pass the emission test. Keywords : Motor vehicle emissions, MQ2 and MQ7 sensors as CO2 and CO detectors for monitoring.
RANCANG BANGUN SISTEM KEAMANAN KUNCI SEPEDA MOTOR MENGGUNAKAN E-KTP SEBAGAI TAG BERBASIS ARDUINO UNO Fauzi, Riza; Priyandoko , Gigih; Setiawidayat, Sabar
JASEE Journal of Application and Science on Electrical Engineering Vol. 5 No. 2 (2024): 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.v5i2.528

Abstract

Security system technology is very important. With a motorbike lock security system using E-KTP as a tag, it is hoped that it can add security to motorbikes. The security system used on motorbikes today is still not safe enough because it still is has a limited security system. Therefore, a additional be tter security systems are needed on the vehicles themselves and are easy to use by the vehicle owner. This research aims to design additional prototypes for Arduino UNO based motorcycle security system that can be used for maintenance motorcycle safety. The method used is to utilize the radio wave frequency from the E-KTP and attach it to the RFID Reader and Arduino UNO. The results and analysis of the testing system are that the maximum reading distance between the E-KTP and the RFID Reader is 1 cm.  It is hoped that this research can be used to help fulfill a motorbike security system using E-KTP as a tag with radio Frequency Identification Technology (RFID).
MONITORING LAMPU DAN PELACAK LOKASI MOBIL DENGAN FITUR KEAMANAN SWITCH CUT OFF ENGINE BERBASIS ARDUINO Muktiyanto, Robby; Priyandoko , Gigih; Setiawidayat, Sabar
JASEE Journal of Application and Science on Electrical Engineering Vol. 5 No. 2 (2024): 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.v5i2.539

Abstract

It's hard to know if one person does it. All this time, checking the rear lights is done conventionally by looking directly behind the car and requiring two people, such a way is less efficient. Besides, the car owner needs to know the location of the car, if the car is out of control of the owner. The research builds a light monitoring system and a car location tracker with a button to turn off the engine remotely using a smartphone. The research uses ACS712 sensors, Arduino Mega, Buzzer, LCD 16x2 with I2C modules, NodeMCU ESP8266, GPS module, WIFI modem, Relay module and the MIT APP Inventor Android app. This system's communication protocol uses the MQTT protocol, and the broker of this system uses the private broker's cloud. Researching the monitoring of lights using Panther and Genio cars, the system can distinguish when there are sensors that don't detect current, the buzzers are ringing and the LCD displays the "Lamp Off" character, as well as showing which lights are switched off. When all the sensors detect current then the buzzer is off, and the lcd displages the "OKE SYSTEM". The tracker system can display coordinate points and can be integrated with google maps. As well as the relay module can be controlled using buttons on the application so that the machine can die. This whole system uses smartphones remotely
Perancangan dan Implementasi Sistem PLTS Off-Grid pada Gerobak Bakso: : Solusi Efisiensi Energi dan Mobilitas Enggri, Enggri Vristanto; Siswanto, Diky; Setiawidayat, Sabar
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.v6i2.01

Abstract

This study investigates the design and implementation of an off-grid solar photovoltaic (PV) system for a meatball cart as a renewable energy solution for small mobile food businesses that still commonly rely on conventional energy sources for lighting and heating. The developed system integrates a 120 Wp monocrystalline PV module, a 12 V 100 Ah LiFePO4 battery, a PWM solar charge controller, a 1000 W inverter, and an automatic soup-heating subsystem based on a DS18B20 temperature sensor, thermocontroller, and solid-state relay. Field testing was conducted on a meatball cart in Pakis District, Malang Regency, for two weeks of operation. The results show that the system was functionally able to operate the supporting loads and maintain soup temperature within 85–95°C through automatic switching control. However, the total daily load of 3810 Wh was still higher than the available daily energy of about 1920 Wh. This finding indicates that the current configuration is feasible as an implementation prototype but has not yet achieved fully autonomous full-load operation. Overall, the study demonstrates the potential of integrating off-grid PV and closed-loop thermal control to reduce dependence on fossil energy and improve the operational flexibility of micro-enterprises.
PENGARUH KEBOCORAN RADIATOR PADA MAIN TRANSFORMER TERHADAP KINERJA OPERASI PEMBANGKITAN LISTRIK: STUDI KASUS PLTA AMPELGADING MALANG Affansyah, Thaariq; Setiawidayat, Sabar; Siswanto, Diky; Mukhsim, Mohammad
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.v6i2.02

Abstract

This study aims to analyze the impact of radiator leakage in the main transformer on the power generation performance at the Ampelgading Hydroelectric Power Plant, Malang. Radiator leakage reduces the volume of insulating oil, leading to increased operating temperatures and degradation of insulation quality. A quantitative descriptive method with a case study approach was employed by analyzing temperature data, Breakdown Voltage (BDV), Dissolved Gas Analysis (DGA), and energy production data before and after the disturbance. The results indicate that radiator leakage caused a significant increase in winding and oil temperatures, along with a decline in insulation oil quality marked by elevated dissolved gas levels. Operationally, the disturbance resulted in a power output reduction of 18.27%. Corrective actions, including cold welding, load reduction, and oil purification, were effective in restoring transformer performance, as evidenced by an average BDV value of 68.1 kV categorized as very good, and improved energy production after maintenance. This study concludes that the reliability of the transformer cooling system, particularly the radiator, plays a crucial role in maintaining operational stability and efficiency in hydroelectric power generation.
Co-Authors Adelaide, Boaventura da Costa Adriati, Sarah Fahira Affansyah, Thaariq Ahmad Wahyudi An-nisa, Dinda Basuki, Roni Ahmad Dedi Usman Effendy Diky Siswanto Djunaidi, Moch Enggri, Enggri Vristanto Faqih Rofii Faqih, Faqih Fauzi, Riza Felix Felix Hunaini, Fachrudin Istiadi Mohammad Muksim Mukhsim, Mohammad Muktiyanto, Robby Muzzaki, Muhammad Iqbal Ngudi Tjahjono Priyandoko Gigih Putra, Bintang Pratama Krisna Putri, Riska Suryanti RIMAN, RIMAN Risqi, Nor Widianah Satriawan, Mochammad Rivan Setiono, Fajar Wahyudi, Mohammad Faris Wicaksana, Irsandi Satria Zakaria, Risman