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A novel triangular wave quadrature oscillator without passive components for sinusoidal pulse width modulation DC-AC power conversion Dodi Garinto; Theodora Valerie; Harki Apri Yanto; Tole Sutikno; Joni Welman Simatupang
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 3: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i3.pp3572-3584

In this study, a low-cost quadrature triangle oscillator using a voltage-controlled closed-loop dual operational amplifier (Op-Amp) architecture is proposed. Unlike other typical designs, this oscillator does not require any passive components. The use of an Op-Amp-based circuit is attractive for a triangle oscillator because it is more cost-effective than a microcontroller-based solution. This is especially true for sinusoidal pulse width modulation (SPWM) DC-AC power conversion applications. The slew-rate restriction of an Op-Amp is a useful characteristic for producing a triangle waveform when seen from the perspective of wave shaping techniques. The MC4558 and the JRC4558D are two examples of dual Op-Amps that are evaluated, contrasted, and described in this article. At supply voltages of +7 V and -7 V, the suggested quadrature triangle oscillator that uses Op-Amps MC4558 and JRC4558D has the same oscillation frequency, which is 63 kHz, as demonstrated by simulation and experimental data. The frequency stability is estimated to be around 0.23%. In addition, the findings from the experiment demonstrate that the proposed oscillator is a practical solution for the SPWM DC-AC power conversion application.

Pemanfaatan Sensor Fotodioda Berbasis Penguat IC LM358 Sebagai Pendeteksi Jarak Api Pada Saat Kebakaran Joni Welman Simatupang; Ludfi Ahmad Prastyo; Zano Junior; Fernando Fernando
Jurnal Serambi Engineering Vol 8, No 2 (2023): April 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i2.5910

Tujuan dari penelitian ini adalah pemanfaatan sensor fotodioda yang dilengkapi dengan penguat operasional IC LM 358 untuk mendeteksi api yang berasal dari sebuah sumber. Pertama-tama, detector (sensor) akan menerima cahaya yang dipancarkan oleh api dengan merespons panjang gelombang optik tertentu selama terjadi kebakaran. Sensor api merupakan sensor yang mempunyai fungsi sebagai pendeteksi nyala api, di mana api tersebut memiliki panjang gelombang antara 760 nm – 1100 nm. Besaran fisika yang dapat dijadikan acuan untuk menentukan jarak api adalah intensitas radiasi panas yang dipancarkan oleh api. Sensor ini menggunakan inframerah sebagai transduser dalam mendeteksi kondisi nyala api. Oleh karena itu, melalui penelitian ini kami berusaha untuk mengembangkan prototipe yang baru, murah, dan sederhana, berupa perangkat pengindraan jarak api yang terbuat dari sensor fotodioda. Sebuah filter inframerah akan diintegrasikan dengan fotodioda, dan intensitas radiasi panas. Fotodioda ini akan dioperasikan dalam mode fotokonduktif, di mana sumber tegangan positif DC terhubung ke katoda. Sedangkan anoda terhubung ke terminal keluaran dan resistor bertindak sebagai pembagi tegangan. Hasil pengujian menunjukkan bahwa sistem sensor jarak api fotodioda dapat mendeteksi api dengan jarak maksimal 110 cm dan tegangan 0.1 Volt. Semakin jah jarak api maka semakin kecil intensitas cahaya dan tegangan yang dihasilkan. Sistem sensor fotodioda pendeteksi api yang telah dibuat dapat bekerja sesuai dengan yang diharapkan, di mana buzzer dan indikator LED juga dapat berfungsi dengan baik.

Performance Assessment of Single Flash PLTP LMB 1 After First Year Inspection Using ASME PTC 46:1996 Method Joni Welman Simatupang; Asep Mamat Rahmat Solihat
Jurnal Serambi Engineering Vol 8, No 3 (2023): Juli 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i3.6082

PLTP LMB 1 performs a First-Year Inspection after operating for one year to inspect and repair equipment after the operation. After these activities, a performance test needs to be carried out to determine the effectiveness and success of these activities. ASME PTC 46: 1996 is a widely-used standard for analyzing the performance test of thermal power plant systems, which includes plant heat rate, power output, specific mass consumption, and more. The purpose of the testing is to evaluate the results of system improvements. Calculation and comparative analysis are performed to determine the system's condition during warranty, commissioning, and testing, as well as after one year of operation and post-first year inspection. After testing, the thermal performance of PLTP LMB 1 was obtained as follows: The corrected net plant heat rate (NPRH) was 18923 kJ/kWh, the corrected net power output was 56,417 MW, and the net specific mass consumption (NSMC) was 6,881 tons/MW. Based on the data guarantee, the thermal performance value of PLTP LMB1 is still below the required value, so it can be concluded that the thermal performance value of PLTP LMB1 is in good condition. The isentropic turbine efficiency value decreased by 2.1% from its design value of 85% to 82.9%, which was caused by suboptimal heat energy absorption by the turbine above the design pressure of 5 bar.

Desain Sensor Passive Infrared (PIR) untuk Keselamatan Kerja pada Mesin Industri Joni Welman Simatupang; Azis Wibowo; Indra Sucipta; Kuncoro Kuncoro; Yosua Siringoringo
Jurnal Teknologi Informasi Indonesia (JTII) Vol 6 No 2 (2021): Jurnal Teknologi Informasi Indonesia (November)
Publisher : JURNAL TEKNIK INFORMATIKA

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

Penelitian ini membahas tentang alat pendeteksi (detektor) gerak berbasis sensor inframerah untuk keselamatan kerja pada mesin industri. Alat ini didisain untuk membantu perindustrian dalam mencegah kecelakaan kerja yang terjadi akibat mesin industri yang berbahaya. Detektor ini menggunakan sensor inframerah pasif atau PIR (Passive Infrared) sebagai pendeteksi gerakan dari anggota tubuh manusia. Dalam implementasinya, sensor PIR di pasang pada sisi tertentu di bagian mesin. Kemudian, sistem tersebut akan memberikan alarm cut-off secara otomatis pada mesin ketika seseorang melintasi area perambahan yang telah terdeteksi oleh sensor. Tentu saja hal ini dapat melindungi manusia dari terjadinya kecelakaan kerja yang diakibatkan oleh mesin industri yang berbahaya. Dengan adanya penerapan desain sensor inframerah ini, maka analisa terhadap mesin-mesin berbahaya menjadi semakin meningkat sehingga sistem keamanan kerja berbasis sensor inframerah lain semakin berkembang dan lebih mudah dibentuk dalam banyak desain. Kata Kunci—Pendeteksi gerak, Sensor PIR, Mesin industri, Alarm Cut-Off, Disain sensor.

Performance Assessment of Single Flash PLTP LMB 1 After First Year Inspection Using ASME PTC 46:1996 Method Joni Welman Simatupang; Asep Mamat Rahmat Solihat
Jurnal Serambi Engineering Vol 8, No 3 (2023): Juli 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i3.6082

PLTP LMB 1 performs a First-Year Inspection after operating for one year to inspect and repair equipment after the operation. After these activities, a performance test needs to be carried out to determine the effectiveness and success of these activities. ASME PTC 46: 1996 is a widely-used standard for analyzing the performance test of thermal power plant systems, which includes plant heat rate, power output, specific mass consumption, and more. The purpose of the testing is to evaluate the results of system improvements. Calculation and comparative analysis are performed to determine the system's condition during warranty, commissioning, and testing, as well as after one year of operation and post-first year inspection. After testing, the thermal performance of PLTP LMB 1 was obtained as follows: The corrected net plant heat rate (NPRH) was 18923 kJ/kWh, the corrected net power output was 56,417 MW, and the net specific mass consumption (NSMC) was 6,881 tons/MW. Based on the data guarantee, the thermal performance value of PLTP LMB1 is still below the required value, so it can be concluded that the thermal performance value of PLTP LMB1 is in good condition. The isentropic turbine efficiency value decreased by 2.1% from its design value of 85% to 82.9%, which was caused by suboptimal heat energy absorption by the turbine above the design pressure of 5 bar.

Pemanfaatan Sensor Fotodioda Berbasis Penguat IC LM358 Sebagai Pendeteksi Jarak Api Pada Saat Kebakaran Joni Welman Simatupang; Ludfi Ahmad Prastyo; Zano Junior; Fernando Fernando
Jurnal Serambi Engineering Vol 8, No 2 (2023): April 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i2.5910

Tujuan dari penelitian ini adalah pemanfaatan sensor fotodioda yang dilengkapi dengan penguat operasional IC LM 358 untuk mendeteksi api yang berasal dari sebuah sumber. Pertama-tama, detector (sensor) akan menerima cahaya yang dipancarkan oleh api dengan merespons panjang gelombang optik tertentu selama terjadi kebakaran. Sensor api merupakan sensor yang mempunyai fungsi sebagai pendeteksi nyala api, di mana api tersebut memiliki panjang gelombang antara 760 nm – 1100 nm. Besaran fisika yang dapat dijadikan acuan untuk menentukan jarak api adalah intensitas radiasi panas yang dipancarkan oleh api. Sensor ini menggunakan inframerah sebagai transduser dalam mendeteksi kondisi nyala api. Oleh karena itu, melalui penelitian ini kami berusaha untuk mengembangkan prototipe yang baru, murah, dan sederhana, berupa perangkat pengindraan jarak api yang terbuat dari sensor fotodioda. Sebuah filter inframerah akan diintegrasikan dengan fotodioda, dan intensitas radiasi panas. Fotodioda ini akan dioperasikan dalam mode fotokonduktif, di mana sumber tegangan positif DC terhubung ke katoda. Sedangkan anoda terhubung ke terminal keluaran dan resistor bertindak sebagai pembagi tegangan. Hasil pengujian menunjukkan bahwa sistem sensor jarak api fotodioda dapat mendeteksi api dengan jarak maksimal 110 cm dan tegangan 0.1 Volt. Semakin jah jarak api maka semakin kecil intensitas cahaya dan tegangan yang dihasilkan. Sistem sensor fotodioda pendeteksi api yang telah dibuat dapat bekerja sesuai dengan yang diharapkan, di mana buzzer dan indikator LED juga dapat berfungsi dengan baik.

Efficient Fault Detection Algorithm in Fiber Optic Communication Systems Simatupang, Joni Welman; Pukhrambam, Puspa Devi
Jurnal Teknologi Informasi Indonesia (JTII) Vol 7 No 2 (2022): Jurnal Teknologi Informasi Indonesia (November)
Publisher : JURNAL TEKNIK INFORMATIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtii.v7i2.913

Primary concern of optical communication system is the signal loss, which need to be traced precisely to enhance the efficiency of the system. Among numerous available techniques, optical time domain reflectometer (OTDR) is the most suitable one for characterizing and tracing the losses. It measures the fraction of a probe pulse that scatters back from the fiber optic cable. Due to the presence of small levels of backscattering in single-mode fiber at long wavelengths, very sensitive optical detector is necessary to achieve sufficient range performance. In the present research, a novel yet simple approach has been demonstrated to understand the range of optical fiber cable feasibility on fault detection and rectification technique. The actual place of fault is marked with the variation in the measured values of OTDR. Thus, it becomes a difficult task to trace and locate the actual place of fault detection, which leads to an inefficient rectification method. The observed values of OTDR shows a gradual decrease of accuracy in locating the actual place of fault. To resolve these issues, here we try to develop an algorithm which is able to easily and efficiently trace the exact location of fault on earth.

Access Control and Security System via Bluetooth Application on Android Smartphone Amiliansyah, Husna; Galina, Mia; Simatupang, Joni Welman
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 6 No. 1 (2022)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v6i1.475

Smartphone technology can be applied not only to establish communication needs but also to support other purposes. One of them is related to personal safety and security functions. It is undeniable that criminal acts can occur anytime and anywhere. Even in a private or residential area, theft could happen. Smartphone and sensor technology can be used as a solution to encounter this problem. In this case, it can be utilized to improve the security control system of the gate or garage door at home. This research presents a prototype of a gate and garage door control and security system that operates through an application on an android smartphone. The application of HC-05 Bluetooth is used to send signals from the smartphone to the Arduino Uno microcontroller, while the micro servo acts as a locking mechanism on the gate itself. The buzzer function is presented to notify homeowners when the gate or garage door is open for more than 15 seconds. This prototype can control gates and garage doors with an average connection time of only about 5 seconds. Thus, this prototype is feasible to use as an alternative to control and improve housing security systems.

IOT Application For Conveyor Motor Load Current And Temperature Monitoring Device for Factory Acceptance Test in Industrial Application Rospawan, Ali; Simatupang, Joni Welman; Purnama, Irwan
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 6 No. 2 (2022)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v6i2.553

In industrial application on machine manufacturer multinational company, especially on the conveyor manufacturing company, before delivering the conveyor to overseas customer, there are some regulations need to be complied to ensure the product quality is always good. The system to ensure the product quality before delivery is named by Factory Acceptance Test (FAT). The purpose of doing this is to gain the trust and satisfaction of the buyer company by ensuring the quality before delivery. To ensure the product quality, this device was designed following the customer check sheet and requirement by giving them reliable data of the load current on each line of the motor and the motor temperature. This device is consisting of WEMOS D1 mini as the main controller and an IoT device, thermocouple type K as a temperature sensor, MAX6675 as the driver of the thermocouple, SCT-013-005 as a split-core current sensor, Arduino Nano as the second controller, and LCD 2004 as a real-time display. The IoT Application for Conveyor Motor Load Current and Temperature Monitoring Device is successfully created with the output is a table of data and the line chart which consists of Load current on each phase (U1, V1, W1), the motor temperature, and the limitation of each data so the user is easier to determine the commissioning result of the Factory Acceptance Test.

Light-Fidelity as Next Generation Network Technology: A Bibliometric Survey and Analysis Safitri, Cutifa; Galina, Mia; Simatupang, Joni Welman
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 7, No. 3, August 2022
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v7i3.1469

This paper delivers a systematic review and a bibliometric survey analysis of Light-Fidelity (Li-Fi) indoor implementation in Next Generation Network (NGN). The main objective of this study is to design a communication network based on NGN-Li-Fi for the indoor implementation which aims to increase user Quality of Service (QoS). The main merits and contributions of this study are the thorough and detailed analysis of the review, both in literature surveys and bibliometric analysis, as well as the discussion of the implementation model challenges of Li-Fi in both indoor and outdoor environments. The issue articulated in an indoor communication network is the possibility of intermittent connectivity due to barriers caused by line-of-sight (LOS) between the LED transmitter and receiver, handover due to channel overlap, and other network reliability issues. To realize the full potential and significant benefits of the Next Generation Network, challenges in indoor communication such as load-balancing and anticipating network congestion (traffic congestion) must be addressed. The main benefit of this study is the in-depth investigation of surveys in both selected critical literatures and bibliometric approach. This study seeks to comprehend the implications of Next Generation networks for indoor communication networks, particularly for visible light communication channels.

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