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All Journal International Journal of Electrical and Computer Engineering ELKHA : Jurnal Teknik Elektro Bulletin of Electrical Engineering and Informatics JREC (Journal of Electrical and Electronics) Bulletin of Electrical Engineering and Informatics Jurnal IPTEK Jurnal Teknologi Elektro ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Bulletin of Electrical Engineering and Informatics Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control InComTech: Jurnal Telekomunikasi dan Komputer JURNAL KAJIAN TEKNIK ELEKTRO Jurnal Elektronika dan Telekomunikasi Jurnal Serambi Engineering TESLA: Jurnal Teknik Elektro Teknologi Indonesia Journal of Industrial Engineering International Journal of Industrial Research and Applied Engineering Green Intelligent Systems and Applications JEEE- Journal of Electrical And Electronics Engineering Jurnal Ilmiah Teknik Elektro
Joni Welman Simatupang
President University
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Aplikasi Sensor Passive Infra-Red (PIR) untuk Meningkatkan Keselamatan Pekerja pada Mesin-Mesin Produksi Industri Joni Welman Simatupang; Indra Sucipta; Azis Wibowo; Kuncoro Kuncoro; Yosua Siringoringo
JIE Scientific Journal on Research and Application of Industrial System Vol 5, No 2 (2020)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jie.v5i2.1322

Abstract

This research of literature study discusses about the function and application of infrared sensor-based motion detection devices for work safety on industrial cam machinery.This device was designed to assist the industry in preventing the work accidents that occur due to hazardous industrial machinery. The detector uses a PIR (Passive Infra-Red) sensor as a motion detector of the human limbs. On its application, PIR sensor is placed on a specific side of the machine. Then, the system will provide an automatic cut-off alarms on the machine when a person crosses the fabric area that has been detected by the sensor. It was expected that this way will protect the manpower from the occurrence of work accidents which are caused by dangerous industrial machines. With the implementation of this infrared sensor design, the analysis of hazardous machinery is becoming increased so that this infrared sensor based working security system is growing and easier for shaping in many designs.
Simulation analysis of equivalent circuit model of skin-electrode impedance for transcutaneous electrical stimulation Joni Welman Simatupang; Wilbert Wijaya; David Tyler; Clementine Mavridis
Bulletin of Electrical Engineering and Informatics Vol 10, No 4: August 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v10i4.3080

Abstract

For more than 50 years, transcutaneous electrical stimulation method has been used to cure the spinal cord injury, stroke or cerebral palsy. This method works by activating the excitable nerves, muscle fibers by electrical current stimulation through electrode to skin interface. Electrode to skin interface requires equivalent circuit to overcome the inability of measuring the skin resistivity directly. We have learned several previous models, which are from Lawler, Moineau and Keller and Kuhn. Unfortunately, Moineau model neglects the capacitance effect, while Lawler and Keller and Kuhn include capacitive and resistive nature of skin in their equivalent circuits. Both models consisted of only one parallel RC block. Therefore, this paper presents the simulation results of the proposed equivalent circuit model using two parallel RC circuits. Simulation of the proposed model is conducted in MATLAB 2015a and compared with two previous models using certain parameters. Results show that the proposed model obtained the impedance of 10.830 kΩ when it is simulated using 100Hz frequency, for Lawler model the impedance is 5.340 kΩ and Keller and Kuhn model the impedance obtained is 6.490 kΩ. The proposed model has the refined impedance compared with other models and is expected to deliver better electrical stimulation.
SISTEM PENDETEKSI KEBAKARAN RUMAH TERINTEGRASI SMARTPHONE DAN APLIKASI ONLINE Saifullana, Saifullana; Simatupang, Joni Welman
JREC (Journal of Electrical and Electronics) Vol 6 No 2 (2018): JREC (Journal of Electrical and Electronics)
Publisher : JREC (Journal of Electrical and Electronics)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (608.035 KB)

Abstract

Tulisan ini menjelaskan tentang rancang bangun sistem pendeteksi kebakaran rumah terintegrasi smartphone dan aplikasi online untuk mengatasi bencana kebakaran di rumah. Dengan adanya sistem ini, penulis berharap tidak terjadi kebakaran yang sampai meluas bahkan sampai memakan korban jiwa. Sistem pendeteksi ini menggunakan pemberitahuan melalui suara buzzer serta notifikasi pada smartphone yang sudah terpasang aplikasi Blynk dengan menggunakan mikrokontroler Arduino UNO sebagai pengontrol sensor api Ky-026, sensor asap MQ-2 dan sensor suhu DHT11. Sistem ini dapat menanggulangi kebakaran dengan menggunakan pompa air sebagai media pemadam api dan mampu melakukan monitoring dengan beberapa pengguna yang sudah terpasang aplikasi Blynk. Dari hasil uji coba yang dilakukan, sistem ini berhasil mendeteksi adanya api, asap, dan suhu. Pompa air sebagai media pemadam api mampu bekerja dengan baik saat sensor mendeteksi adanya kebakaran dan buzzer berbunyi untuk memberikan peringatan terhadap pemilik rumah. This paper explains the design and implementation of home fire detection system integrated with smartphone and online application to cope with fire disaster at home. With this system, the authors hope that there will be no fire extends too far and take casualties. This detection system uses notification via sound buzzer and on smartphone that has been installed Blynk application using Arduino UNO microcontroller as controller for Ky-026 fire sensor, MQ-2 smoke sensor, and DHT11 temperature sensor. This system can cope with fire by using a water pump as a fire extinguisher. This system is capable of monitoring with some users who have installed Blynk application. As a result of testing, this system successfully detects the presence of fire, smoke, and temperature. The water pump as a fire extinguisher is able to work well when the sensor detects a fire and the buzzer sounds to warn the homeowner.
THEORETICAL ANALYSIS OF SINGLE-FIBER TRANSMISSION OVER WDM-PON SYSTEMS Simatupang, Joni Welman; Pukhrambam, Puspa Devi
Teknologi Indonesia Vol 40, No 2 (2017)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v40i2.420

Abstract

In this paper, a rigorous theoretical analysis on optical beat interferometric (OBI) noises caused by the Rayleigh backscattering (RB) and Fresnel reflection (FR) effects on the performance of a single-fiber single-wavelength WDM-PON (wavelength division multiplexing-passive optical network) transmission system has been presented. Two categories of PON are evaluated: a conventional and a long-reach WDM-PON system. The conventional WDM-PON took place in an access network for a typical transmission distance of 20 km without any optical amplification at the remote node (RN). In this case, the gain of the optimal reflective optical network unit (ONU) will depend on the relative RB power and also the FRs magnitudes and locations along the optical fiber channel/transmission link. However, in the cases of the long-reach WDM-PON deployed at a transmission distance of 100 km or further, the optical amplifiers are indispensable to enhance the optical power budget and to prevent the effect of fiber nonlinearities that may occur at high power injection levels. Although the presence of an optical amplifier (OA) in a long-reach WDM-PON will actually give some additional gain to the whole system, as a result it also produces the worse RB and FR effects to the system itself. A crosstalk to signal (C/S) ratio is used as a key performance indicator of whether the transmission system is in good working order or not. Therefore, this study may provide insight and relevant information in terms of transmission optimization for WDM-PON systems and developments in the future. To educate on the current technologies and developments surrounding conventional and long-reach WDM-PON, a brief overview is provided in the background part of the introduction.
SIMULATION AND ANALYSIS OF RAYLEIGH BACKSCATTERING EFFECTS IN 105 KM LONG-REACH RSOA-BASED HYBRID WDM/TDM PON TRANSMISSIONS Simatupang, Joni Welman
Teknologi Indonesia Vol 36, No 1 (2013)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v36i1.193

Abstract

Passive Optical Networks (PONs)-based hybrid wavelength-division-multiplexing/time-division-multiplexing (WDM/TDM) technologies could be an excellent candidate for being used in the next-generation optical accessnetworks (NGOANs). However, Rayleigh backscattering (RB) effects can cause severe degradation on their performances while utilizing a single-fiber wavelength-reused loop-back confi guration (re-modulation technique) by employing Refl ective Semiconductor Optical Amplifi ers (RSOAs)-based as colorless upstream transmitters at optical network terminals (ONTs) or optical network units (ONUs). In long-reach PONs, optical amplifi cation is an indispensable solution; therefore optical amplifi ers are exactly needed to enhance the power budget and to prevent the fi ber non-linearity problem. As a proof-of-concept, crosstalk-to-signal (C/S) ratio as a function of feeder or distribution fi ber length is briefl y derived using analytical solution method and then simulated using MATLAB commercial software (R2008b) in order to determine the performance of three different architectures (topologies) of 105 km long-reach RSOA-based hybrid WDM/TDM PON transmissions. After the simulation and analysis, the best C/S ratio of -19 dB is obtained for the third topology. This topology even can serve up to 2048 users (subscribers). Users or subscribers could be at home (known as fi ber-to-the-home, FTTH technologies) or in the building(f ber-to-the-building, FTTB technologies).
ANALISIS PERHITUNGAN KERUGIAN DAYA PADA LENDUTAN SERAT OPTIK DENGAN SIMULASI MATLAB Joni Welman Simatupang; Faisal Syamsuri; Ria Bramasto; Fajar Choirul Anam; R. Hilary Yoga Ardanta
TESLA: Jurnal Teknik Elektro Vol 24, No 1 (2022): TESLA: Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/tesla.v24i1.15371

Abstract

Bending is one of the causes of signal transmission loss through the electromagnetic wave medium in the optical fiber. There are two types of bendinglossess: microbending and macrobending. Both of them occur when the surface of the optical fiber cable experiences external pressure which causes deformation in the core of the optical fiber. Bending causes the loss of the optical transmission power affected by decreased light intensity, therefore the output ratio becomes degraded to the input one. This kind of condition assumed can be utilized for designing the optical fiber-based sensor by observing the response of the optical fiber against the external disturbances or stimulation.One example is the mechanical force that causes the deformation to the optical fiber. Based on the simulation result through the Matlab programming for macrobending loss, it was obtained that the highest power loss at 1.817×10-4 dB/mm on the 10mm bending radius for the 1650nm wavelength, and the lowest at 2.683×10-8 dB/mm on the 20mm bending radius for the 1250 nm wavelength. Meanwhile for microbending loss, it obtained the largest change of transmission coefficient at 59.070% for 100mm spacer length with applied mechanical force as large as 106 dynes or 10N, and the smallest change at 0.591% for 10mm spacer length with applied mechanical force as large as 105 dynes or 1N. These significant changes of the measured values show that the optical fiber, by simulation, is pretty responsive against the external stimulations, either on the macroscopic scale or the microscopic scale. So that based on its responsiveness, we can assume that optical fiber is most likely possible to be utilized in variousmodern fiber optic sensor for many applied technologiesABSTRAK:Lendutan atau bending merupakan salah satu penyebab kerugian transmisi sinyal melalui medium gelombang elektromagnetik berupa cahaya melalui pada serat optik. Terdapat dua jenis bending, yaitu macrobending dan microbending. Keduanya adalah tipe lendutan yang terjadi ketika permukaan serat optik mendapat tekanan eksternal yang menyebabkan terjadinya deformasi pada inti serat optik. Lendutan mengakibatkan berkurangnya daya transmisi optik dikarenakan berkurangnya intensitas cahaya, sehingga nilai keluarannya menjadi terdegradasi. Kondisi tersebut diasumsikan dapat dimanfaatkan untuk perancangan sensor berbasis serat optik dengan mengamati respon serat optik terhadap gangguan eksternal. Sebagai contoh berupa gaya mekanis yang menyebabkan serat optik terdeformasi. Berdasarkan hasil simulasi melalui Matlab untuk macrobending, diperoleh kerugian daya tertinggi sebesar 1.817 × 10-4 dB/mm pada radius bending 10 mm untuk panjang gelombang 1650 nm, dan terendah sebesar 2.683 × 10-8 dB/mm pada radius bending 20 mm untuk panjang gelombang 1250 nm. Sementara untuk microbending, diperoleh perubahan koefisien transmisi tertinggi sebesar 59.070% untuk panjang penyekat 100 mm dengan gaya mekanis sebesar 106 dyne atau 10 N, dan terendah sebesar 0.591% untuk panjang penyekat 10 mm dengan gaya mekanis sebesar 105 dyne atau 1 N. Perubahan nilai yang sangat signifikan tersebut menunjukkan bahwa serat optik secara simulasi cukup responsif terhadap stimulasi eksternal, baik dalam skala makro maupun mikro. Berdasarkan sifatnya yang cukup responsif, dapat disimpulkan bahwa serat optik sangat mungkin untuk dimanfaatkan dalam perancangan sistem sensor moderen untuk berbagai aplikasi teknologi.
Theoretical Analysis on Interferometric Noise in Bidirectional WDM-PON Transmission Joni Welman Simatupang
Bulletin of Electrical Engineering and Informatics Vol 2, No 1: March 2013
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v2i1.260

Abstract

In this paper, theoretical analysis on interferometric noise caused by RB and FR in bidirectional single-fiber single-wavelength transmission over the conventional and long-reach WDM-PON is presented. Conventional WDM-PON takes place in access networks, usually for 20 km transmission distance without node amplification. However, for long-reach WDM-PON which is deployed for 100 km or beyond, optical amplification is an indispensable solution to enhance the power budget and prevent fiber nonlinearities that happening in the high power level. However, optical amplifier in long-reach WDM-PON might cause the RB and FR effects worse compare with their effects in conventional ones. It is due to the nature of re-amplification and re-modulation feedback of backscatter and back-reflection lights which existed at the preceding and following of optical amplifier or remote node gain.
Studi Tentang Pengaruh Temperatur Sambungan Terhadap Intensitas Cahaya Pada Lampu LED Serial NL500 Joni Welman Simatupang; Fajar Heru Santoso
JIE Scientific Journal on Research and Application of Industrial System Vol 6, No 2 (2021)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jie.v6i2.1500

Abstract

Kebutuhan pencahayaan di tambang batubara adalah vital untuk proses produksi. Adanya masalah sejumlah lampu Led yang mati di area tambang merupakan tantangan bagi PT Nobi Putra Angkasa untuk melakukan inovasi unit lampu LED berdaya besar. Penulis adalah praktisi sebagai kepala bagian produksi di perusahaan itu yang merupakan manufaktur lokal yang mengembangkan inovasi dari Lampu PJU ke lampu tambang dengan standar SNI yang sudah  menembus pasar di perusahaan tambang besar. Setelah dilakukan pemeriksaan secara visual pada lampu LED yang mengalami kerusakan adanya indikasi kelebihan panas. Pengujian berbagai tipe lampu LED untuk mengetahui pengaruh kenaikan temperatur sambungan (junction temperature) terhadap penurunan intensitas cahaya. Pengujian dilakukan dengan menggunakan 4 sampel lampu NL500A, NL500B, NL500C, NL500D. Untuk  waktu pengujian dilakukan per 15 menit sampai menemukan data yang stabil pada menit ke 180 .Hasilnya pengujian pada lampu adalah temperatur sambungan NL500A = 80.76°C., NL500B = 90.98°C., NL500C = 71.32°C., NL500D = 75.31°C.  dari hasil tersebut bahwa memenuhi standar datasheet pabrikan LED maksimum 150°C. Metoda kesimpulan ini adalah korelasi panas yang ditimbulkan dan panas yang dibuang melalui sirip. Lampu LED NL500 A, C dan D adalah manufaktur internal perusahaan menggunakan mesin SMT, sedangkan NL 500B  produk import. Lampu NL 500D menggunakan LED Nichia 149 dengan efikasi 133,64 Lumen/ watt dari hasil uji Fotometri metoda IES 79-08. Pengukuran junction temperature (Tj) NL500C paling baik untuk transfer panasnya sehingga nilai Tj nya paling kecil dengan nilai rata-rata 58,52°C karena resistance thermal = 0.9 °C/Watt. Lampu LED NL500D unggul di intensitas cahaya dengan nilai rata-rata 3794,16 lux.
Prototipe Mesin Penjual Air Mineral Otomatis berbasis Arduino Mega 2560 dan RFID-RC522 JONI WELMAN SIMATUPANG; BAYU PRASETYO; MIA GALINA; ANTONIUS SUHARTOMO
Jurnal Elkomika Vol 10, No 2 (2022): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i2.484

Abstract

ABSTRAKMeningkatnya jumlah sampah botol plastik sekarang ini telah membawa banyak masalah kesehatan dan lingkungan hidup. Masalah tersebut dapat dikurangi jika seseorang mau membawa botol minum (tumbler) sendiri. Namun, dibutuhkan mesin penjual air mineral untuk mengisi ulang tumbler. Paper ini menjelaskan disain dan implementasi prototipe mesin penjual air mineral otomatis, praktis, dan ekonomis berbasis Arduino Mega 2560 dan RFID-RC522. Pengujian terhadap prototipe ini dilakukan dalam tiga tahap: (1) pengujian jarak baca antara kartu RFID dengan RFID reader, (2) pengujian pada kondisi ideal, dan (3) pengujian pada kondisi tidak ideal. Dari pengujian pertama disimpulkan bahwa RFID-RC522 dapat melakukan pembacaan optimal pada jarak 35 mm. Dari hasil pengujian kedua diperoleh nilai akurasi (keakuratan) pada saat pengisian air sebesar 82%. Sedangkan hasil pengujian ketiga menyatakan bahwa prototipe dapat membaca kemungkinan yang terjadi pada kondisi tidak ideal. Kelemahan dari prototipe ini adalah belum terintegrasi dengan sistem pembayaran uang elektronik (e-money).Kata kunci: Arduino Mega 2560, Mikrokontroller, RFID-RC522, Sampah Plastik. ABSTRACTThe increasing amount of plastic bottle waste today has brought many health and environmental problems. These problem can be minimized when someone brings their own drinking bottle water. But, vending machine-like was needed to refill the tumbler. This paper explains a design implementation of prototype that can provide an automatic, practical, and economical mineral water filling based on Arduino Mega 2560 and RFID-RC522. Testing on this prototype was carried out in three stages: (1) testing of the reading distance between the RFID card and the RFID reader, (2) testing under ideal conditions, and (3) testing under non-ideal conditions. From the first test summarized that the RFID-RC522 can perform optimal readings at a distance of 35 mm. From the second test obtained the accuracy of the prototype when filling water by 82%. And the third test shows that the prototype could read the possibilities occurred in non-ideal conditions. The drawback of this prototype is not yet integrated with e-money payment system.Keywords: Arduino Mega 2560, Microcontroller, RFID-RC522, Plastic Waste.
Humanoid Robot Application as COVID-19 Symptoms Checker Using Computer Vision and Multiple Sensors Baihaqi, Muhammad Yeza; Vincent, Vincent; Simatupang, Joni Welman
ELKHA : Jurnal Teknik Elektro Vol. 13 No. 2 October 2021
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v13i2.47213

Abstract

Novel Corona Virus (nCoV) infects human’s respiratory system. It spreads easily when an infected person makes a close contact with other people. To prevent its massive spread, it is necessary to ensure anyone coming to a certain place is not being infected. The symptoms include high body temperature (≥37.5°C) and low oxygen saturation level (≤95%). This day, most places only check the human body temperature. Thus, the authors are interested to make an attempt to design a system that is able to measure both human body temperature and oxygen saturation level. This work also applies the 7-DoF Upper-Body of Humanoid Robot to prevent virus spread from and to the employee. The system will detect the coming of visitors by using face detection. It requires 7.24 seconds to detect the visitor without a mask, and 1.26 second when the visitor wears a mask. The body temperature measurement was done using GY-906 temperature sensor with an error of 0.51%. For the oxygen saturation level measurement, MAX30100 pulse oximeter module was applied and showed an error of 0.78%. In addition, the upper-body of humanoid robot will perform some gestures to instruct the visitors in every process of the system. The implemented 7-DoF upper-body of humanoid robot has 93.33% gesture comprehension rate. In conclusion, the overall system has been tested and showed success rate up to 75%.
Co-Authors Abdul Aziz Prihandoko Abdul Wahid Adamzah Suyuti Bakar Aditya Rachmat Saputro AGUS RIYANTO Aida Mahdalena Lubis Ali Rospawan Ali Rospawan Ali Rospawan Amar Ma’aruf Gusnadi Andri Setia Prabowo Antonius Suhartomo Asep Mamat Rahmat Solihat Aulia Rahman Azis Wibowo Baihaqi, Muhammad Yeza Bambang Dewandaru BAYU PRASETYO Bintang Ramadhan Prasetya Bonifasius Raditya Cakranegara, Pandu Adi Carolus Kaswandi Clementine Mavridis Cutifa Safitri David Tyler Dodi Garinto Enndi Chiu Evi Rismauli FAISAL SAMSURI FAISAL SAMSURI Faisal Samsuri Faisal Syamsuri Fajar Choirul Anam Fajar Heru Santoso Fauzi Hadinegara Filson Maratur Sidjabat Galih Suryo Gumilang Harki Apri Yanto Harun Maya Baheli Hendra Jaya Tarigan Husna Amiliansyah Ibadurahman Hanif Indra Sucipta Intan Agnita Rizki Irwan Purnama Irwan Purnama Joana Victorine Harryanto Johan Krisnanto Runtuk Juno Fariko Kaburuan, Emil Robert Kristi Mahardi Kristiantho Sulistiohadi Kuncoro Kuncoro Lydia Anggraini MAROJAHAN TAMPUBOLON Melvin Harsono Michael Yosua Mochammad Aziz Muhammad Ekka Januar Akbar Muhammad Ikhsan Muhammad Rayhan Syahida Ramadhan Ningrum Suryaningsih NURUL AMANDHA ADISTIA Nurul Amandha Adistia Pukhrambam, Puspa Devi R. Hilary A Yoga R. Hilary Yoga Ardanta Rafael Ryan Putra Rafi Amartya Santosa Resmana Lim Ria Bramasto Ria Bramasto Ridha Muhlita Putra Rijal Hakiki Rizky Aditya Nurdiansyah Rizky Ariyan Qurais Shihab Saifullana, Saifullana Sasfitra Decky Afristanto SASFITRA DECKY AFRISTANTO Sealtial Mau Sielvya Rahma Maulida Siti Hamidah Sri Anwar Ikhwanuddin Theodora Valerie Tole Sutikno Vincent Vincent Vincent Vincent Vincent Vincent, Vincent Wilbert Wijaya Yogi Saputra Yosua Marcellino Yosua Siringoringo Zahrotul Zanah