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Progam Studi Teknik Elektro, Fakultas Teknik Universitas Muhammadiyah Surakarta Jl. Ahmad Yani, Pabelan, Kartasura, Surakarta 57162 Telp: 0271-717417 Ext.: 3223
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Emitor: Jurnal Teknik Elektro
Published by Universitas Muhammadiyah Surakarta
ISSN : 14118890     EISSN : 25414518     DOI : https://doi.org/10.23917/emitor
Core Subject : Engineering,
Engineering
Emitor: Jurnal Teknik Elektro merupakan jurnal ilmiah yang diterbitkan oleh Jurusan Teknik Elektro Fakultas Teknik Universitas Muhammadiyah Surakarta dengan tujuan sebagai media publikasi ilmiah di bidang ke-teknik elektro-an yang meliputi bidang Sistem Tenaga Listrik (STL), Sistem Isyarat dan Elektronika (SIE) yang meliputi Elektronika, Telekomunikasi, Komputasi, Kontrol, Instrumentasi, Elektronika Medis (biomedika) dan Sistem Komputer dan Informatika (SKI).
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 81 Documents
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Design and Development of Object Detection Radar with IoT-Based Matlab Software Visualization Ihsan, Dias Khairul Ihsan; Fadlilah, Umi; Kusban, Muhammad
Emitor: Jurnal Teknik Elektro Vol 24, No 2: July 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Radar is an abbreviation for Radio Detection and Ranging, which means an electromagnetic wave system that functions to detect, measure and map objects in the surroundings. So far, the development of radar technology has tended to focus on object detection without considering effective integration and connectivity. Therefore, this research aims to develop a radar that can detect, measure and differentiate between moving and stationary objects. This research does not only pay attention to the detection aspect, but also integrates Matlab R2022a for visualization, Internet of Things (IoT) for centralized connectivity and the Blynk mobile application to increase the efficiency of object monitoring. This research uses ultrasonic sensors and Passive Infra-Red (PIR) sensors, ultrasonic sensors to read distance parameters and PIR sensors to detect moving or stationary objects. The ultrasonic and PIR sensors will be controlled by the ESP32 and serve as a centralized connectivity system that will connect to a Web server and mobile devices, while the Matlab R2022a software will visualize the environment around the radar at a 180o angle and connect with Thingspeak and the PushBullet mobile application. The results of the test are compared with a standard measuring instrument, namely a meter. In this research analysis, error calculations are used to see the uncertainty value of the sensor readings used. Based on research, the ultrasonic sensor reading accuracy results were 98.99% and for the PIR sensor the sensor could read every test angle starting from 30, 60, 90 120 and 150 degree, however at angles 30 and 150 degree it had quite a long delay.
Design and Development of Syringe Needle Destroyer Using Melting Method Ade Firdaus; Ferdana, Nanda; Mujakar, Samsul; Satrio, Hendrik; Zulhamidi
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.4494

Abstract

Syringe needles are among the most commonly used medical tools in healthcare facilities across Indonesia, contributing significantly to medical waste. Improper disposal of syringe waste poses risks of disease transmission and potential misuse. Presently, small-scale beauty clinics resort to third-party waste management services due to the lack of incinerators. This research aims to develop a device capable of melting used syringe needles to ensure safe waste processing for both humans and the environment. Additionally, the objective is to create a low-budget needle destroyer, making it accessible to other healthcare services. The melting method is employed for needle destruction, utilizing a transformer to generate electrical current and heat. This approach offers ease of use and eliminates air, noise, and metal dust pollution. Through experimentation with various syringe sizes (1 cc, 3 cc, 5 cc, and 10 cc), it was found that melting times sequentially increase with needle size: 4 seconds for 1 cc, 5 seconds for 3 cc, 6 seconds for 5 cc, and 8 seconds for 10 cc syringes. This research contributes to sustainable healthcare waste management practices, ensuring safer and more affordable solutions for healthcare facilities
Design and Build Smart Farming Automatic Plant Watering Based on the Internet of Things Tegar Zaky Prasetyo, Tegar; umar
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.5592

Abstract

The agricultural sector is important in every country, especially in Indonesia, where the majority of the population are farmers. The problem faced in this modern era is that the agricultural system still uses traditional methods which are less efficient in the use of time. The main aim of this research is to make the agricultural sector more superior in Indonesia, to increase the efficiency of agricultural production using IoT (internet of things) technology. The research method used is by detecting the water content in the soil, temperature and humidity in the air and the weather on agricultural land. The tools and materials used are soil moisture sensors and ESP32. Soil moisture levels are also adjusted by irrigation using a water pump. If the soil humidity is below the limit, the humidity sensor will send information data to the ESP32 module and the data will be sent to the IoT (Internet of things) platform. ESP32 collects data from all sensors and connects the data to the cloud and displays it in Blynk. The results of this research were that the highest solar panel voltage read by the multimeter was 20.5 V and the lowest was 18.3 V. The soil moisture sensor can work according to commands, when the soil moisture condition is (< 50) the pump will turn on and when the soil condition is (> 50) the pump will not turn on. The INA219 sensor displays the voltage, current and power of the load when it is on or off. The average error read from the INA219 sensor voltage is 2.515%, the highest error is 5.6% and the lowest is 0.8%.
Gender Identification and Population Detection in a Room Using YOLOv8 Zulfi, M.Ridho; Sumadi; Murdika, Umi; Ulya Darajat, Anisa
Emitor: Jurnal Teknik Elektro Vol 25, No 1: March 2025
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.5734

Abstract

In today's digital era, lectures and higher education have experienced rapid development, especially in theuse of technology. Technology has opened up various opportunities to improve efficiency and effectiveness in variousaspects of education. One aspect that needs to be improved is the presence of students in lectures. Through this thesis,the author aims to develop a tool that can overcome the problem of recapitulation of student attendance using imageprocessing technology and the YOLOv8 algorithm, then adding male and female face training data to identifygender. By combining the latest technology and this innovative approach, it is hoped that an efficient and accuratesolution can be created to record student attendance in lectures. In this study, the implementation of population countand gender identification within a room using YOLOv8 achieved a precision value of 100%, a recall value of 100%,an accuracy value of 100%, and an F1-score value of 100%.
Analysis of Mean Time Between Failures and Reliability of a 150 kV Circuit Breaker at Bantul Substation Using the Maximum Likelihood Estimation Method Rachmanto, Arsya Hilmana; Nugraha, Candra Febri
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.5908

Abstract

As technology advances in the modern era, the need and consumption of electrical energy in society has increased rapidly. With the need for electrical energy continuing to increase, various disturbances in the electrical system, including in substations, cannot be predicted when they will occur. The Power Breaker (PMT) is a vital equipment in the Bantul 150 kV substation power system that functions to break the electrical circuit under load to prevent interference and damage to equipment and ensure the smooth distribution of electrical energy to consumers. Based on the role of PMT, the estimation of PMT failure time has not been studied in depth. This study aims to analyze the Mean Time Between Failure and Reliability of the Bantul 150 kV Substation PMT. The method used in assessing PMT life is Maximum Likelihood Estimation. The data used are the results of observations of ten different PMTs in Bantul Substation. The results of the analysis show that the average value of the time period between failures (MTBF) varies between different PMTs. The highest MTBF value is PMT Wirobrajan 2 with a damage period of about 14.55 months, while the lowest MTBF is PMT Semanu 2 with a damage period of 5.48 months. The results of the analysis of failure probability, cumulative failure probability, reliability probability, and damage rate of 150 kV PMTs show significant variations between different PMTs. Reliability value produces the lowest value on PMT Transformer 3. While the highest Reliability value produces the highest value, namely on PMT Kopel. With the known MTBF and Reliability of 150 kV PMT at Bantul Substation, it can be used as a basis for maintenance and maintenance of PMT in its operation at Bantul Substation.
Application of Proportional Integral Derivative (PID) Control in Overvoltage Protection Systems for Low Voltage Network Loads Prasetia, Abdul Muis; Linda Sartika; Tirvan
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.5971

Abstract

Electricity is a very essential need for every element of society in this modern era, with electricity, various kinds of work can be easily done. However, in electricity distribution, there are often disturbances that can be detrimental to consumers, One of the power lines that usually experiences interference is the Low Voltage Network (JTR) line. JTR is a transmission network with a low voltage classification between 220 volts and 280 volts. In this transmission, various kinds of disturbances often occur, such as overvoltage and voltage drops. In this research, the author discusses the overvoltage protection system using Proportional Integral Derivative (PID) control. PID control is a simple control method that several researchers have developed to overcome various electrical problems in this modern era. For this reason, the researcher will develop PID as a protection system to overcome overvoltage disturbances in JTR transmissions. The appropriate PID parameter value to overcome overvoltage in this study is the value Kp = 5; Ki = 0,3 Kd = 0.01, where the system is able to protect the overvoltage according to the setpoint value 220 volts.
Detection of Modulated Wave Transmission Failure in Aviation Communication Using IoT-Based RTL-SDR Mukti, Indra Fadillah; Muhammad Arif Sulaiman; Mochamad Faisal Yoga Dewantara
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.6223

Abstract

Communication is a crucial component in aviation telecommunications services, where failures can lead to fatal incidents that may result in loss of life. According to Regulation No. 48 of 2017, aviation telecommunication service providers must be able to provide VHF A/G services with an availability value of 0.99999 and detect failures within two seconds. At Perum LPPNPI Yogyakarta, the VHF A/G equipment is located in a transmitter building 760 meters away from the Technician Standby Building. This distance makes it difficult for technicians to directly monitor the equipment's condition, leading to failures being identified based on reports from air traffic controllers. Therefore, the author designed an IoT-based RTL-SDR system to directly monitor equipment conditions based on the modulated waves transmitted. This design employs the ADDIE method in its development. The system operates by measuring the transmission power and audio level of the modulated waves. Based on research conducted at frequencies 120.2 MHz, 125 MHz, 126.7 MHz, 127 MHz, 129.5 MHz, 130 MHz, 132.5 MHz, 133.2 MHz, 134 MHz, and 135 MHz, this design can detect equipment failures based on the received modulated waves with highest and lowest deviation while measuring transmission power are 2.24 dB and 0.4 dB.
Combining Microstrip Meander Line and Dipole Antennas: Dual-Band Solution for PIR Equipment Muhamad Adimukti Prasojo; Muh Wildan; Eriyandi; Wibowo, Priyo
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.6381

Abstract

One of the aviation navigation tools is the Instrument Landing System (ILS), which functions to provide guidance signals to aircraft in the final approach position toward the runway. The ILS consists of three components: the Localizer, Glide Path, and Marker Beacon. To ensure aviation safety and security, navigation equipment must be regularly inspected through Ground Inspection. With current technological advancements, Ground Inspection is being conducted using UAVs or drones. One of the components to be installed on the UAV is the PIR, which requires two antennas of different lengths to receive signals from the Localizer and Glide Path.In this study, a dual-band antenna was developed that combines a dipole antenna and a meander line microstrip antenna for frequencies 108-112 MHz and 328.6-335.4 MHz, using CST Studio Suite 2021 software and FR-4 substrate material. Simulation results showed good performance with a return loss value of -19.43471 dB, VSWR of 1.238951, and a bandwidth of 2 MHz at a frequency of 110.5 MHz, and a return loss value of -27.41626 dB, VSWR of 1.119686, and a bandwidth of 2.5 MHz at a frequency of 329.6 MHz.Measurement parameter values for the VHF band were a return loss of -14.1680 dB, VSWR of 1.487, and a bandwidth of 14.6 MHz. Meanwhile, for the UHF band, there was a shift in the resonance frequency to 368.5 MHz with a return loss value of -15.4202 dB, VSWR of 1.408, and a bandwidth of 11.4 MHz. In this antenna design, a dual-band combination of a dipole and a meander line microstrip antenna with dimensions of 320 mm was achieved, capable of operating in both the VHF and UHF frequency bands simultaneously. However, this antenna can only operate at the Localizer working frequency.
Baby Room Temperature and Humidity Control System Using Fuzzy Logic Arifuddin, Rahman; Dirgantara, Wahyu; Sumarahinsih, Andrijani; Putri Intan Hafsari1, Rizky; Iqbal Maulana, Fairuz; Trisna Nugraha, Anggara; Arya Sobhita, Rama
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.6403

Abstract

The health and comfort of infants are highly sensitive to room environmental factors, particularly temperature and humidity, which play a critical role in supporting their well-being. Managing these factors becomes complex due to constant fluctuations in ambient conditions, necessitating the use of advanced technology to ensure stability and adaptability. This study explores the application of fuzzy logic in designing a temperature and humidity control system for infant rooms, aiming to maintain an optimal environment for infant care. Fuzzy logic offers a robust approach for handling variability, enabling precise adjustments based on a set of predefined rules and inputs. The system operates by processing real-time input values of temperature and humidity and producing adaptive responses through control outputs, such as cooler, heater, and blower settings. These adjustments are determined by a series of if-then rules that interpret the input conditions to produce the necessary responses. Experimental testing and evaluation confirm that the fuzzy logic-based control system effectively maintains room temperature and humidity within the desired range. The results indicate that this approach can successfully sustain a stable and comfortable environment, underscoring its potential application in enhancing infant health and comfort through controlled indoor climate conditions.
High Frequency Inverter with Fuzzy Logic Controller for Portable Induction Heater Ummah, Karunia Vio Nita Rusyatul; Eviningsih, Rachma Prilian; Windarko, Novie Ayub
Emitor: Jurnal Teknik Elektro Vol 24, No 3: November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i3.6651

Abstract

The development of technology today makes humans strive to save natural resources and switch to alternative energy. For reasons of saving energy, saving costs, easy to use, and having a high level of safety, induction heaters can be used as an alternative to overcome these problems. Induction heaters can generate heat through the process of electromagnetic induction when cookware made of metal is brought closer. In this process the coil is supplied with alternating electric current from a high frequency inverter which then induces the cookware with metal material to cause heat. The heat in the induction heater will be regulated through the switching frequency of the high-frequency inverter which gets its voltage source from a 24V battery and increases the voltage to 48V. This induction heater is designed to maintain the setpoint temperature 70°C and 100°C using fuzzy logic control. From the test results it can be seen that the fuzzy logic control can reach a setpoint temperature of 70°C within 20 minutes and after being disturbed the fuzzy logic control can maintain the setpoint temperature with an error percentage of around 0.14% - 0.29%. Meanwhile, the setpoint temperature of 100°C can be achieved within 35 minutes and after being disturbed the fuzzy logic control can maintain the setpoint temperature with an error percentage of around 0.14% -0.9%.

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