Article Per Year (5 Year)
p-Index From 2021 - 2026
2.727
P-Index
This Author published in this journals
All Journal International Journal of Electrical and Computer Engineering ELKHA : Jurnal Teknik Elektro Journal of ICT Research and Applications Jurnal Abdimas BSI: Jurnal Pengabdian Kepada Masyarakat JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi KACANEGARA Jurnal Pengabdian pada Masyarakat Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vortex Jurnal Peradaban Masyarakat (JPM) Kapuas
Lasmadi, Lasmadi
Institut Teknologi Dirgantara Adisutjipto
Aerospace Engineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 28 Documents
Search

 1   2   3 
Penentuan Orientasi dan Translasi Gerakan UAV menggunakan Data Fusion berbasis Kalman Filter Freddy Kurniawan; Muhammad Ridlo Erdata Nasution; Okto Dinaryanto; Lasmadi Lasmadi
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 3, No 2 (2021): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v3i2.890

Abstract

Navigation system is essential in estimating the orientation and translation motion of UAV. The system can utilize data from several sensors and devices, e.g. MIMU and GPS. The orientation of UAV can be precisely calculated by means of data from accelerometer and magnetometer when both sensors are in static state. Meanwhile, under dynamic conditions, the orientation can be more precisely predicted through the use of gyroscope sensor data. In order to attain a robust navigation system, a data fusion based on Kalman filter is built to estimate the orientation from the accelerometer, gyroscope, and magnetometer sensors. Moreover, for sake of achieving high accuracy, the filter will further correct the orientation by giving a higher weight to the data from accelerometer and magnetometer sensors when the UAV is in static condition. In the case of its position, the UAV position will be estimated by performing data fusion of MIMU and GPS data. Based on the experiments, it could be showed that data fusion based on Kalman filter provided more accurate results of orientation and position of UAV. The result of orientation based on gyroscope sensor data has an average error of 18.12°, while those obtained by accelerometer and magnetometer sensors data is 1.3°. Furthermore, by using the data fusion based on Kalman filter, the error of orientation predicted by combining data from accelerometer, magnetometer, and gyroscope will decrease to 0.87°.
Pengembangan Sistem Pemantau Kebocoran Gas Elpiji dan Peringatan Dini Bahaya Kebakaran Berbasis Internet of Things Husny Husny; Freddy Kurniawan; Lasmadi Lasmadi
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 4, No 1 (2022): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v4i1.1181

Abstract

The fire hazard due to an LPG cylinder explosion can be triggered from a gas cylinder leak. Not infrequently these incidents lead to loss of life and property loss. This study proposes the design of an LPG gas leak monitoring system and early warning of fire hazards. The system is designed to be integrated with the internet network through the Internet of Things (IoT) platform. The MQ-6 sensor module is used to detect LPG gas leaks and a fire sensor to detect fire. The sensor is installed close to the gas outlet source to ensure gas leakage and fire. The data from the sensor is read by the microprocessor and sent to the web server via the interface device. When the concentration of LPG gas in the air exceeds a certain level or a fire is detected, the microprocessor gives a command to turn on the alarm and sends a hazard notification to the smartphone. Hazard notifications, gas concentrations and status of hazard conditions can be accessed in real-time on Android-based smartphones. The results of the tests that have been carried out show that this system can provide information on hazard notification messages and gas concentration values in the range of 1000 - 10000 ppm. The fire detector in this system can detect fires up to a distance of 110 cm from the source of the fire. Then, hazard notifications and gas concentration levels can be accessed via a smartphone with the Kodular web application in the form of a real-time graphic display.
Rancang Bangun Receiver menggunakan Antena 1090 MHz dan Low Noise Amplifier untuk Menambah Jarak Jangkau Penerimaan Sinyal dan Data Parameter Target ADS-B berbasis RTL820T2 Maulana Sohibi; Denny Dermawan; Lasmadi lasmadi
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 2, No 2 (2020): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v2i2.765

Abstract

Radar technology at several airports is still using flightradar24 as a source of information, and building an ADS-B station is expensive. However, the flightradar24 has several weaknesses, among which is that if the user wants to display more information, the user is required to pay periodically or subscriptions, and there is delay due to the process of data that requires the Internet connection. With a concept of receiver ads-b based RTL-SDR R820T2, a low cost receiver ads-b with the results can receive an ads-b signal without delay and can receive data from an airplane. But there is a weakness in rtl-b receivers based RTL-SDR R820T2, because it doesn't explain and can't know how far the receiver can receive signals and target parameters data from the aircraft. Thus on this research a receiver ads-b using RTL-SDR R820T2, with a low-noise amplification and an ads-b antenna 1090 MHZ in the hopes of knowing how far the aircraft's target range is from the receiver and knowing how far the receiver's range of data signals the target parameters. By performing some step-by-step testing of the design. The designed receiver ads-b USES low noise amplification with an ads-b antenna 1090 MHZ capable of receiving data and target parameters ads-b for 284 km on adsbSCOP software range and 287.63 km mathematically.
A Novel Boost-Buck Converter Architecture for Improving Transient Response and Output-Voltage Ripple Freddy Kurniawan; Lasmadi Lasmadi; Okto Dinaryanto; Bambang Sudibya; Mohammad Ridlo Erdata Nasution
Journal of ICT Research and Applications Vol. 14 No. 2 (2020)
Publisher : LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.res.appl.2020.14.2.4

Abstract

Buck-boost converters are widely used in the development of DC-DC converters. Several techniques and algorithms have been introduced to improve the transient response of buck-boost converters. However, due to the opposite trends of the output current change and the output voltage change, undershoot or overshoot in the output voltage still seems to be inevitable. In order to overcome this problem, a novel boost-buck converter architecture is proposed to build a fast transient response DC-DC converter. The converter consists of a cascaded configuration of the boost and buck stages. The boost stage converts the input voltage to the shared capacitor voltage and the buck stage supplies energy to the load by converting the shared capacitor voltage to the output voltage. By harnessing the energy stored in the shared capacitor, the transient response of the boost buck converter can be improved to 2 µs in a step-up load current change of 1 A with an output-voltage ripple of 15 mV.
Pengenalan basic navigation-dead reckoning bagi mahasiswa dan alumni Teknik Elektro Institut Teknologi Dirgantara Adisutjipto Lasmadi Lasmadi; Freddy Kurniawan; Sutjianto Sukarno
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 5, No 1 (2022): Januari
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v5i1.1029

Abstract

Pengetahuan avionik merupakan hal yang sangat diperlukan bagi mahasiswa prodi Teknik Elektro Institut Teknologi Dirgantara Adisutjipto. Bagi mahasiswa yang mendapatkan kurikulum baru, mereka telah dibekali pengetahuan avionik sesuai dengan target. Namun, bagi angkatan dengan kurikulum sebelumnya dan juga alumni, pengetahuan ini belum sepenuhnya didapatkan. Program pengabdian ini bertujuan untuk memberikan pengetahuan avionik Dead reckoning system kepada mahasiswa prodi Teknik Elektro khususnya angkatan 2016 dan sebelumnya serta alumni. Program ini diwujudkan dalam bentuk webinar melalui media zoom selama dua hari yang terbagi dalam  5 sesi penyampaian materi. Materi disajikan dalam bentuk slide presentasi yang disampaikan oleh para dosen prodi Teknik Elektro. Untuk lebih mendesiminasikan pengetahuan, kegiatan ini juga disiarkan melalui kanal youtube agar dapat diikuti oleh semua lapisan masyarakat. Berdasarkan asal peserta yang mengikuti webinar ini, dapat disimpulkan bahwa pelatihan ini telah memenuhi sasaran. Selain itu, berdasarkan jumlah peserta dan respon yang diberikan kegiatan ini dapat memberikan manfaat bagi sebagian besar peserta. Kegiatan serupa dapat diadakan kembali pada waktu mendatang dengan materi yang berbeda dalam lingkup kedirgantaraan.
Pengenalan attitude heading reference system bagi himpunan mahasiswa dan alumni Prodi Teknik Elektro Institut Teknologi Dirgantara Adisutjipto Freddy Kurniawan; Lasmadi lasmadi; Sutjianto Sukarno
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 4, No 2 (2021): Juli
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v4i2.929

Abstract

Pengetahuan avionik merupakan hal yang mendalam sangat diperlukan bagi alumni prodi Teknik Elektro Institut Teknologi Dirgantara Adisutjipto. Dengan diberlakukannya kurikulum 2019, mahasiswa prodi ini telah dibekali pengetahuan avionik sesuai dengan target. Namun pengetahuan ini belum sepenuhnya didapat bagi angkatan 2016 dan sebelumnya dan juga alumni Teknik Elektro. Untuk itulah diperlukan program untuk memberikan pengetahuan avionik secara lebih mendalam kepada mereka. Program pengabdian masyarakat ini akan memberikan materi avionik Attitude and Heading Reference System (AHRS) kepada para mahasiswa angkatan 2016 dan sebelumnya dan juga alumni. Program ini diwujudkan dalam bentuk webinar dan dapat diikuti oleh masyarakat. Lebih jauh lagi, webinar ini juga dapat diikuti kapan saja di channel youtube, dengan harapan webinar ini dapat disaksikan kapan saja dan pengetahuan AHRS dapat disebarluaskan kepada masyarakat.
Attitude Estimation for Quadrotor Based on IMU with Kalman-Filter Lasmadi Lasmadi
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/senatik.v4i0.267

Abstract

Improved a quadrotor technology that is capable of fast maneuvering requires accurate attitude estimation or navigation to maintain a quadrotor stability. The GPS can provide position measurements with an accuracy of several meters, but cannot provide orientation information directly. This study aims to design a quadrotor attitude navigation system based on IMU sensors on AR Drone 2.0 with a Kalman filter using the equation of state space model. The system model was developed using the Matlab software. The Kalman filter is designed as an estimator to reduce noise on the sensor so that it can improve measurement accuracy. The test results showed that the system model can be used to estimated the orientation angle and shift of the quadrotor, while the Kalman filter that designed can reduce noise in the sensor data. At the time of tested, the system provided the measurement accuracy of above 90% when tested indoor.
Koreksi Sudut Attitude Quadrotor pada saat Dinamis dengan Mengubah Bobot Data Sensor pada Kalman Filter Lasmadi Lasmadi; Muhammad Ali Dakir; Freddy Kurniawan; Sudarmanto Sudarmanto
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 5, No 1 (2023): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v5i1.1442

Abstract

Penggunaan data fusion menggunakan Kalman filter untuk menggabungkan data dari giroskop dan akselerometer dalam rangka menentukan sudut attitude pada quadrotor tidak selamanya menghasilkan data yang akurat. Sensor akselerometer tidak dapat menentukan data percepatan secara akurat pada saat kondisi dinamis, sementara itu nilai sudut hasil propagasi dari data giroskop mempunyai akumulasi galat yang semakin tinggi dengan berjalannya waktu. Untuk itu, pada penelitian ini digunakan Kalman filter yang dapat memberikan bobot yang lebih besar pada data giroskop saat quadrotor dalam kondisi dinamis. Metode yang digunakan adalah dengan menaikkan nilai matriks kovarian derau pengukuran pada saat kondisi dinamis. Penentuan kondisi dinamis dilakukan dengan membandingkan nilai varian data percepatan dengan nilai ambang batas. Dari hasil penelitian, metode ini terbukti dapat menurunkan galat sudut roll dari 9,3052 % menjadi 0,0635 % dan sudut pitch dari 0,0021 % menjadi 0,0015 %.
Sistem Pengendali On-Off Lampu dan Motor Servo sebagai Penggerak Gerendel Pintu Berbasis Internet Of Things (IoT) Ramdan Ramdan; Lasmadi Lasmadi; Paulus Setiawan
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 4, No 2 (2022): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v4i2.1317

Abstract

The application of Internet of Things (IoT) technology will be one of the technologies that complements all fields along with the increasing use of smartphones. The purpose of this research is to design an on-off control system for lights and servo motors as door latch actuator based on IoT. The designed system can give commands on/off the lamp or door latch actuator and display the on/off indicators through an application on an Android smartphone. The system is designed using a Wemos D1 mini microcontroller as a processor, light sensor, infrared sensor, relay, servo motor, and RemoteXY app. Based on the test results, the system design has been successfully implemented and can be operated as an on-off controller via the internet with an Android smartphone. For each test performed, the system managed to provide an output that matches the given control input. The response time (delay) of the relay when on or off the lamp about 34,83 ms while the response time of the servo motor when opening and closing the latch takes about 38,93 ms. The notification shown corresponds to the state of the lamp and the state of the latch.
Data Fusion for Displacement Estimation and Tracking of UAV Quadrotor in Dynamic Motion Lasmadi Lasmadi; Denny Dermawan; Muhamad Jalu Purnomo
Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Vol 5, No 2 (2023): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v5i2.1758

Abstract

The fusion of MIMU and GPS data is generally used to estimate the displacement and tracking of quadrotor UAVs. Meanwhile, displacement estimation inaccuracies during dynamic motion often occur. This error is caused by noise and limited sensor sampling rate especially occurs when the quadrotor changes its attitude rapidly to generate an instantaneous horizontal force. This paper proposes data fusion based on Kalman filter to estimate orientation and displacement. Experiments were also carried out to verify displacement accuracy, i.e. in single-axis and multi-axis sensor motions. The algorithm combines data from MIMU and GPS sensors so that acceleration data is filled in points where GPS data is not available. With this method, the predicted displacement from the MIMU sensor can be corrected every second with data from the GPS and produce accurate displacement and trajectory estimates.
Co-Authors abdul haris subarjo, abdul haris Adha Imam Cahyadi Anggraini Kusumaningrum, Anggraini AZ Uchrowi Bambang Sudibya Bambang Sudibya, Bambang Dalimunthe, Ernando Rizki Dedet Hermawan Setiabudi, Dedet Hermawan Denny Dermawan Denny Dermawan Denny Dermawan Ernando Rizki Dalimunthe Freddy Kurniawan Freddy Kurniawan Freddy Kurniawan Freddy Kurniawan Haruno Sajati Husny Husny Irawaty, Mardiana Jamil, Ramadani Matuan, Lorenso Oldiardo Maulana Sohibi Muhamad Jalu Purnomo, Muhamad Jalu Muhammad Ali Dakir Muhammad Ari Roma Wicaksono Muhammad Irfan Pamungkas Nasution, Muhammad Ridlo Erdata Nurdin, Riani Okto Dinaryanto Purnami, Ndaru Atmi Putri, Risma Dwi Tjutarjo Rahmawati, Fajar Khanif Ramdan Ramdan Ramdan, Ramdan Rindu Alriavindra Funny Risanuri Hidayat Samiadji Herdjunanto Sandi, Briyan Yoga Setiawan, Paulus Soekarno, Sutjianto Sudarmanto Sudarmanto Sutjianto Soekarno Sutjianto Sukarno Uchrowi, AZ Uyuunul Mauidzoh Yenni Astuti, Yenni