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Rancang Bangun Robot Amphibi Sebagai Sistem Monitoring Gorong-Gorong Mustar, Muhamad Yusvin; Nugraha, Aditiyo Eka; Hidayat, Ahmad Imam; Zidni, Hasan; Oktaviani, Rara Dwi
Semesta Teknika Vol 20, No 2 (2017): NOVEMBER 2017
Publisher : Semesta Teknika

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

This research proposes a design and implementation of a culvert monitoring system, based on amphibious robots that resemble ship shapes. This robot, enable to work on land or on the surface of water. A robot control algorithm, based on Arduino microcontroller programming designed and modeled as human and robot interaction, so users can interact directly with the robot in movement control. The outputs generated on this monitoring system are images and sound. Images and sounds obtained from Mobius camera installed on the robot. The results of monitoring and control of robots is controlled wirelessly, so it can perform robot control and monitoring of long-distance culvert and different places. The system proposed in this study can be implemented and applied in real terms, as a system that can help and facilitate the monitoring of water tunnel

Implementasi Sistem Monitoring Deteksi Hujan dan Suhu Berbasis Sensor Secara Real Time Mustar, Muhamad Yusvin; Wiyagi, Rama Okta
Semesta Teknika Vol 20, No 1 (2017): MEI 2017
Publisher : Semesta Teknika

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The aim of this research is to provide the design and implementation of a monitoring system which is able to detect rain and temperature based on real time sensor. This system focuses on the results of raindrop detection sensor as a rain detector and NTC thermistor as a temperature detector. Both of the sensors have an analog output. Therefore, they require an Analog Data Converter (ADC) to measure. Several tools are used to build this monitoring system, including microcontroller Arduino NANO for input sensor value readings, data processing and programming. Real Time Clock (RTC) is used to provide time information when the sensor works, as well as the telemetry as the wireless communication device. An interface based on Graphical User Interface (GUI) using JAVA as the monitoring software which can be operated on a PC or laptop. Based on the analysis and evaluation, this tool can detect rain and temperatures in real time.

PERANCANGAN KENDALI NAVIGASI ROBOT TANK SECARA NIRKABEL BERBASIS SENSOR ACCELEROMETER BERDASARKAN GERAKAN TANGAN Mustar, Muhamad Yusvin; Ardiyanto, Yudhi
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 9, No 1 (2018): JURNAL SIMETRIS VOLUME 9 NO 1 TAHUN 2018
Publisher : Universitas Muria Kudus

Sebuah sistem kendali berbeda pada navigasi robot tank diperkenalkan pada penelitian ini. Umumnya sistem kendali navigasi robot tank dikendalikan meggunakan remot kontrol atau joystick dan beberapa perangkat pengontrolan robot lainya. Pengontrolan navigasi robot tank bertujuan untuk dapat mengendalikan pergerakan robot agar dapat berjalan maju, mundur, berbelok ke kiri dan ke kanan. Pada penelitian ini, pengontrolan navigasi robot dilakukan berdasarkan gerakan tangan manusia. Sebuah sarung tangan yang dilengkapi sensor accelerometer ADXL335 didesain untuk dapat mendeteksi setiap bentuk gerakan tangan. Pendeteksian gerakan tangan didasarkan pada pembacaan orientasi axis X dan Y acceleometer. Gerakan tangan ini kemudian diinput pada mikrokontroler Arduino Nano dan ditransmisikan melalui nRF24L01 2.4GHz. Hasil pendeteksian gerak kemudian diterima dan diolah pada mikrokontroler Arduino Mega yang terdapat pada robot tank. Selanjutnya, hasil pendeteksian gerakan tangan ini dipetakan dalam beberapa bagian pengontrolan, agar sesuai dengan pola pengontrolan navigasi robot tank. Hasil penelitian ini menunjukan bahwa sebuah sistem pengontrolan navigasi robot tank berdasarkan gerakan tangan dapat diimplementasikan dan diaplikasikan secara riil, sehingga dapat memberikan pengalaman baru dalam berinteraksi dengan robot.

Evaluation of Differential Protection in a Main Power Transformer: A Case Study in PT Pertamina Geothermal Energy Area of Kamojang Altama, Gady; Mustar, Muhamad Yusvin; Syahputra, Ramadoni; Prasetyo, Teguh Iman
Journal of Electrical Technology UMY Vol 3, No 2 (2019): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3256

The electric power system consists of various components, ranging from the components of generation, transmission, and distribution. The systems are quite expensive, so that excellent, reliable, and economic protection is needed to avoid internal and external faults.Â The faults can trigger damage to components, especially on the main transformers in the Power Plant Geothermal Unit 4 of the Kamojang area managed by PT Pertamina Geothermal Energy. Disturbances that occur in the main transformers of various types so that the primary protection needed in the transformer is a differential relay to protect to avoid interference that occurs. This study discusses the comparison of theoretical differential relay calculation calculations with actual differential relay setting data in the Kamojang Unit 4 Geothermal Power Plant and simulates with ETAP 12.6 software. The problem that occurs in the main transformer of the Geothermal Power Unit Unit 4 Kamojang area is the difference in the slope 1 of the actual setting data with a mathematical calculation that is the actual setting data of 40% and the numerical calculation data worth 8.5%. Please note that the minimum slope one limit is 5%. PT Pertamina Geothermal Energy made slope one changes, so that differential relays are not too sensitive to the interference current that occurs within the protection zone of differential relays.

Analytical Studies of the Excitation System of Synchronous Generator in Steam Power Plant Unit 3 and 4 at PJB UP Gresik Pamungkas, Rizky Catur; Mustar, Muhamad Yusvin; Syahputra, Ramadoni
Journal of Electrical Technology UMY Vol 1, No 3 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1320

Generator or alternator is a device that has a function to convert or transformmechanic energy to electricity. Electricity conversion need process with givingstrengthening with excitation current to coil magnetic field that placed on sync generator. Excitation current that flows on magnetic field coil will cause magnetic flux. Generator sync on PLTU unit 3 and 4 PJB UP Gresik use excitation system with excitation static type, this type of excitation it uses carbon brush as a media to conduct excitation current, this excitation system use the output of sync generator. In reality this excitation current which exist on PLTU unit 3 and 4 have to should always be taken care so the system can operate normally and commonly the fault that happened is under excitation and over excitation so it can be prevent. Step taken to avoid damaging the generator sync that caused by excitation current, steps that have to be taken are understanding thecharacteristic of system excitation setting, anchor current, voltage generator, and loading. The value of loading is very affecting the value of excitation current that injected toÂ generator, the purpose of this process of excitation current injection is to maintain the stability from sync generator voltage so that the condition is staying on its normal condition.

The Nynas Nitro Libra Oil Testing as an Isolator on the 150 kV Transformer Using Colour, Water Content, and Breakdown Voltage Testing Method in Bantul Substation Ardianta, Dimas Septe; Syahputra, Ramadoni; Mustar, Muhamad Yusvin
Journal of Electrical Technology UMY Vol 2, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2131

In the system of electricity power, either thermal or electric failure often takes place. In order to prevent such failure, isolator testing towards the power transformer is needed. A mineral oil Nynas Nitro Libra was used as the research subject, in which it was compared to the other oil types, involving new oil, in-use oil, and used crude oil. The method used was testing throughout the colour, water content, and breakdown voltage. Colour testing was conducted by comparing between used oil and typical oil, whereas water content was conducted by mixing chemical ingredients which were Solvent Xylol and toluene, followed by 100Â°C heating process within 3 hours and condenser cooling down until the moisture dropped down the trap, finished by 6 times breakdown voltage test through environment temperature. The testing result shows that crude oil indicates D 8,0 (black colour), with moisture content TRACE (0,2%) which is 4 ppm. The value of 6-time breakdown voltage test in the temperature of 22Â°C indicates: 09.4 KV, 09.1 kV, 09.2 kV, 09.6 kV, 09.5 kV, 12.0 kV with dielectric power 3.92 kV/mm.

Rancang Bangun Robot Amphibi Sebagai Sistem Monitoring Gorong-Gorong Mustar, Muhamad Yusvin; Nugraha, Aditiyo Eka; Hidayat, Ahmad Imam; Zidni, Hasan; Oktaviani, Rara Dwi
Semesta Teknika Vol 20, No 2 (2017): NOVEMBER 2017
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v20i2.2924

This research proposes a design and implementation of a culvert monitoring system, based on amphibious robots that resemble ship shapes. This robot, enable to work on land or on the surface of water. A robot control algorithm, based on Arduino microcontroller programming designed and modeled as human and robot interaction, so users can interact directly with the robot in movement control. The outputs generated on this monitoring system are images and sound. Images and sounds obtained from Mobius camera installed on the robot. The results of monitoring and control of robots is controlled wirelessly, so it can perform robot control and monitoring of long-distance culvert and different places. The system proposed in this study can be implemented and applied in real terms, as a system that can help and facilitate the monitoring of water tunnel

Microcontroller Based Automatic Calculation of Ideal Weight Body Mustar, Muhamad Yusvin; Chamim, Anna Nur Nazilah; Putra, Karisma Trinanda; Nugraha, Vendy Dwi Hendra; Jusman, Yessi
Journal of Electrical Technology UMY Vol 2, No 4 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2443

The development of science and technology is increasing every day, especially in the field of electronics and control systems. This is marked by the rapid progress that has occurred with the creation of increasingly sophisticated electronic devices and all systems have gone from conventional to automatic. Many benefits are obtained from the rapid development in the field of electronics and control systems including being able to assist humans in completing their tasks, increasing human productivity, and increasing the level of effectiveness in doing work. Departing from this, then in this study designed an automatic body ideal value calculation tool that is controlled by a microcontroller chip using C language programming. This study provides another alternative in measuring mass values, height values, and displaying a BMI (Body Mass Index) ) subject automatically. The working system is quite easy where the subject only climbs the scales, the height measuring device with ultrasonic sensors PING)) will work to measure the subject's height, the scales equipped with the HX711 module will measure the mass value of the subject. Then, the microcontroller will process the height value, and the mass value of the subject to calculate the subject's BMI

EFFECT OF LOW-COST EMG FOR LEARNING MUSCLE CONTRACTIONS IN SPORT COLLEGE STUDENTS Pramono, Bayu Agung; Siantoro, Gigih; Marsudi, Imam; Muhammad, Heryanto Nur; Noordia, Anna; Mustar, Muhamad Yusvin
JSES : Journal of Sport and Exercise Science Vol. 6 No. 1 (2023): March
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jses.v6n1.p32-38

Surface electromyography (SEMG) is an application that helps coaches and athletes recognize and understand muscle contractions during practice and matches. Unfortunately, this tool is very expensive, so it is necessary to develop SEMG, which is cheap but has the potential to detect muscle contractions during movement. This research aims to develop an inexpensive SEMG for detecting muscle contractions. 10 sports students participated in this study, and they were active in carrying out measured and programmed physical activities four times a week. This research is an experimental study; all students will do barbell squats at 80% of the maximum load. Differences in muscle contractions on the SEMG sensor during concentric and eccentric contractions will be analyzed using the paired sample t-test. The results of this study found a difference in the amplitude of the two muscle contractions with p <0.05; besides that, for the first test, this tool was successful in describing a picture of the amplitude that continues to decrease in muscle contractions in fatigued conditions, although there needs to be an additional indicator in assessing the condition tired for SEMG. This study concludes that the SEMG sensor can detect muscle contractions due to a sports movement. Initial experiments in this study successfully detected muscle contraction signals due to different movements used low cost SEMG; then, it needs to be developed better to reduce noise due to electronic devices' influence around SEMG.

Optimizing Light Detection with Photodiode Sensor Arrays using Linear Regression Siregar, Rahmat Fauzi; Mustar, Muhamad Yusvin; Affandi, Affandi; Nasution, Arya Rudi; Br. Sembiring, Adelia Febrina
Jurnal Rekayasa Elektrika Vol 21, No 3 (2025)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v21i3.42384

Photodiode sensors are widely used in various applications such as light intensity measurement, optoelectronic devices, and automation. In improving the quality of measurement and automation systems, more sophisticated technology is needed such as photodiode sensor arrays, which allow more accurate data collection from multiple sensors simultaneously. This research aims to design a photodiode sensor array with high sensitivity. The system design consists of six photodiode sensors combined with a summing amplifier circuit and a non-inverting amplifier as a signal conditioner which is then processed by a microcontroller. After that, the linear regression function is determined through the calibration process and experiments carried out. Two linear regression functions are obtained and implemented in two operating modes: normal mode and sensitive mode. Experimental results yield two linear regression functions applied to a photodiode sensor array in normal and sensitive modes. Normal mode shows 82.50% accuracy with a 36.69% coefficient of variation, while sensitive mode boasts 94.05% accuracy and 49.81% coefficient of variation. Both modes cater to different light conditions, with sensitive mode excelling in detecting light intensity. Linear regression implementation proves precise and accurate for light detection.

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