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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Pendidikan Karakter Jurnal Pendidikan Vokasi Jurnal Edukasi Elektro Jurnal Penelitian Saintek JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Pendidikan Teknologi dan Kejuruan TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Pendidikan IPA Indonesia Jurnal technoscientia Sinergi Program Kreativitas Mahasiswa - Teknologi Indonesian Journal of Science and Technology Proceeding of the Electrical Engineering Computer Science and Informatics Golden Age: Jurnal Ilmiah Tumbuh Kembang Anak Usia Dini Journal of Vocational Education Studies Indonesian Journal of Electrical Engineering and Computer Science JURNAL TEKNOLOGI TECHNOSCIENTIA Southeast Asian Journal of Technology and Science
Moh. Khairudin
Universitas Negeri Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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THE ACCEPTANCE OF MOOC AMONG TVET STUDENTS IN HIGHER EDUCATION: AN OBSERVATION Ismail, Mohd Erfy; Hamzah, Norhasyimah; Ariffin, Arihasnida; Ismail, Irwan Mahazir; Mat Daud, Khairul Azhar; Utami, Pipit; Khairudin, Moh.
Jurnal Pendidikan Teknologi dan Kejuruan Vol 15, No 2 (2018): Edisi Juli 2018
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptk-undiksha.v15i2.14183

Abstract

Teaching traditionally through the use of textbooks and lecture makes the decline in learning desirability among technical & vocational education and training (TVET) students. In the 21st century learning, the technology changes in learning such as e-learning have led to the use of technology in the field of TVET. Most TVET educators have started using the Massive Open Online Course (MOOC) as a learning medium. The purpose of this study to enhance the quality of teaching and learning for TVET students in higher education. Teaching and  learning in TVET lack of  using blended learning approach. This study examine students’ acceptance and specify the criteria that make Massive Open Online Courses (MOOC) suitable for TVET in learning environment. The respondent are 60 students randomly selected from Creativity and Innovation courses. This study employed the quantitative methodology which include the use of questionnaire with Likert scale. The questionnaire consist four construct to examine the criteria of MOOC for teaching and learning in TVET.  The  reliability  test  of  Cronbach  Alpha is 0.813. Data were analyzed using descriptive analysis. The findings show that the constructs of perceived of usefulness (mean=1.85), perceived ease of use (mean=1.90), user attitude toward use (mean=1.86) and actual system use (mean=1.83) towards the acceptance of MOOC in teaching and learning among TVET students. In general, these finding also showed positive respond to implement MOOC for TVET in higher education. Thus, in making the learning process more interesting, the educators should improving existing teaching style.
Control of a Movable Robot Head Using Vision-Based Object Tracking Moh Khairudin; G.D. Chen; M.C. Wu; R. Asnawi; Nurkhamid Nurkhamid
International Journal of Electrical and Computer Engineering (IJECE) Vol 9, No 4: August 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (504.661 KB) | DOI: 10.11591/ijece.v9i4.pp2503-2512

Abstract

This paper presents a visual tracking system to support the movement of the robot head for detecting the existence of objects. Object identification and object position estimation were conducted using image-based processing. The movement of the robot head was in four directions namely  to the right, left, top, and bottom of the robot head. Based on the distance of the object, it shifted the object to many points to assess the accuracy of the process of tracking the object. The targeted objects are detected through several processes, namely normalization of RGB images, thresholding, and object marking. The process of tracking the object conducted by the robot head varied in 40 various object points with high accuracy. The further the object’s distance to the robot, the smaller the corner of the movement of the robot produced compared to the movement of the robot head to track an object that was closer even though with the same distance stimulant shift object. However, for the distance and the shift of the same object, the level of accuracy showed almost the same results. The results showed the movement of the robot head to track the object under the head of the robot produced the movement with a larger angular error compared to the movement of the robot head in another direction even though with the stimulant distance of the same object position and the distance shift of the same object.
Notice of Retraction: The characteristics of TB6600 motor driver in producing optimal movement for the Nema23 stepper motor on CNC machine M. Khairudin; R. Asnawi; A. Shah
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 1: February 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v18i1.12781

Abstract

This article has been retracted by the publisher. -----------------------------------------------------------------------This article has been retracted at the request of the Authors. The editors and authors have jointly made the decision to retract the paper. Reasonable effort should be made to remove references to this paper.-----------------------------------------------------------------------This study describes the use of the TB6600 motor driver for the stepper motor on CNC machine. Based on the analysis of the performance of the TB6600 motor driver, in order to produce an optimal stepper motor of Nema23 on CNC machine, three stepper motors are needed as the CNC engine drives for the X, Y and Z axeo be connected to the TB6600 motor driver. The motor is then controlled by Raspberry Pi via Mach3 Interface Board of Breakout Board. The softness of motion and safe working temperature for the stepper motor of Nema23 on CNC machine are obtained by varying the control of the micro-step switches and controlling current switches. The results show that 32 steps of micro-step control produce smoother resonance and movement than smaller micro-steps. In addition, the current control of 1 A generates the best motor driver output with a lower temperature for all three stepper motors.
Automated Navigation System based on Weapon-Target Assignment Gayuh Titis Permana; Maman Abdurohman; Mohammad Khairudin; Mohammad Lutfi
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 9, No 3: December 2011
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v9i3.735

Abstract

Operating of weapon on the tank is mostly by manually. It is not desired performance for a critical operation. An automatic control system is required to operate the weapon with the target while maintaining the accuracy. In this paper has designed an automatic weapon control system using object image proccessing. Various an image processing methods used to improve the weapon accuracy to obtain the intended target. The method used in digital image processing is the Camshift motion tracking method. This method is compared with the Lucas Canade motion tracking method. This comparison is conducted to found more precise results between the two methods. Results of object image processing are used to control the direction of the weapon that towards the desired goal. The results show that the implementation of the Lucas Canade motion tracking method using fire simulation tools have been successful. The performance of the Lucas Canade motion tracking methods is better than the CamShift method. Using Lucas Canade method for weapon controller is accordance with the purposes.
DYNAMIC MODELLING OF A FLEXIBLE LINK MANIPULATOR ROBOT USING AMM Moh. Khairudin Moh. Khairudin
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 6, No 3: December 2008
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v6i3.566

Abstract

This paper presents modeling of a flexible link manipulator using Lagrangian technique in conjunction with the assumed mode method (AMM). The links are modeled as Euler-Bernoulli beams satisfying proper mass boundary conditions. A payload is added to the tip of the outer link, while hub inertias are included at the actuator joints. The Lagrangian approach is used to derive the dynamic model of the structure. In this research, the dynamic model of a flexible link manipulator verified using Matlab/Simulink simulation. The model formulation proposed in this work is complete in the sense that it considers the effects of payload and damping structural of the link. The emphasis has been set on obtaining accurate equations of motion that display the most relevant aspects of the coupling between rigid and flexible dynamics.
RBFNN CONTROL OF A TWO-LINK FLEXIBLE MANIPULATOR INCORPORATING PAYLOAD M. Khairudin M. Khairudin
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 8, No 2: August 2010
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v8i2.617

Abstract

This paper presents the dynamic modeling and control of a two-link flexible robot manipulator. A dynamic model of the system is developed using a combined Euler-Lagrange and assumed mode methods. The most problems of a two-link flexible manipulator are vibration of flexible link and unpredictable payload additional. Previous researchers have discussed control methods for this system; few presented the effect of a payload profile. The simulation in this research is performed to assess the dynamic model and system responses at the hub and end-point of both links are presented and analyzed in time domains and show the advantages using radial basis function neural network (RBFNN) controller for solving flexible link vibration, achieve high-precision position tracking, and payload effect robustness. The results achieved by the proposed controller are compared with conventional PID to substantiate and verify the advantages the proposed scheme and its promising potential in control of a two-link flexible manipulator. It is shown that smaller overshoot, quickly steady state response and tracking performance of the proposed controller is good profile and better than PID controllers.
SISTEM KENDALI PADA SISTEM KOMPLEKS MULTIVARIABEL DENGAN METODE BERHIRARKI (STUDI ANALISIS PROSES PEMBUATAN SEMEN) Moh. Khairudin
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 3, No 1: April 2005
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v3i1.1215

Abstract

Sistem kendali berhirarki muncul karena adanya permasalahan kendali pada sistem yang kompleks. Realita sistem kendali yang tidak dapat diterapkan secara efisien pada prinsip dan metode mulitvariabel. Hal ini terjadi karena sistem yang harus dikendalikan terlalu besar dan permasalahannya terlalu kompleks. Kerenanya komputasi yang terlalu banyak akan sulit diatasi. Sistem kendali berhirarki mempunyai sejumlah besar input dan output. Pada sistem kendali berhirarki, komponennya melakukan berbagai macam interaksi dinamis, dan sistem ini mendapatkan bermacam gangguan pula. Model matematis dari sistem ini mempunyai orde dinamik yang besar dan mencakup banyak parameter sistem. Upaya pencarian alternative dalam kendali suatu sistem berdimensi besar yang menyebabkan pembagian keseluruhan permasalahan dalam sub-sub permasalahan. Sistem controlable dan input reachable sebagai hasil yang diharapkan dengan analisa S-Rank sama dengan jumlah state serta S-Observable dan output reachable sebagai analisa lintasan tiap state yang menghubungkan pada minimal satu output.
System Identification and LMI Based Robust PID Control of a Two-Link Flexible Manipulator M. Khairudin; Z. Mohamed; A.R. Husain
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 12, No 4: December 2014
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v12i4.293

Abstract

This paper presents investigations into the development of a linear matrix inequalities (LMI) based robust PID control of a nonlinear Two-Link Flexible Manipulator (TLFM) incorporating payload. A set of linear models of a TLFM is obtained by using system identification method in which the linear model represents the operating ranges of the dynamic system. Thus, the LMI constraints permit to robustly guarantee a certain perturbation rejection level and a region of pole location.  To study the effectiveness of the controller, initially a PID control is developed for TLFM with varying payloads. The performances of the controllers are assessed in terms of the input tracking controller capability of the system as compared to the response with PID control. Moreover, the robustness of the LMI based robust PID control schemes is discussed. Finally, a comparative assessment of the control strategies is presented.
Dynamic Model and Robust Control of Flexible Link Robot Manipulator Mohammad Khairudin; Zaharuddin Mohamed; Abdul Rashid Husain
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 9, No 2: August 2011
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v9i2.698

Abstract

The problems of a flexible link manipulator are uncertainties and parametric nonlinearities. This paper presents design and development of a robust control based on linear quadratic regulator (LQR) for a flexible link manipulator.  System performances were evaluated in terms of input tracking capability of hub angular position response, end-point displacement, end-point residual and hub velocity. For the controller of the system, LQR was developed to solve flexible link robustness and input tracking capability of hub angular position. The results achieved by the proposed controller are compared with conventional PID, to substantiate and verify the advantages of the proposed scheme and its promising potential in control of a flexible link manipulator. The robust control presented faster settling time and smaller overshoot responses and tracking performances of the proposed controller compared with PID controllers.
Development of Fuzzy Logic Control for Indoor Lighting Using LEDs Group M. Khairudin; S. Riyanto; Z. Mohammed
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 3: June 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i3.8048

Abstract

This paper presents the design and the development of an indoor lighting control based on fuzzy logic controller (FLC). The objective of this study is to demonstrate how the FLC can optimize the lighting based on indoor and outdoor lighting environments. The FLC system uses two inputs with Light Dependent Resistors (LDR) as a sensor at indoor and outdoor lighting environments. The output is Light Emitting Diodes (LEDs) to provide lighting at the room automatically. The Pulse Width Modulation (PWM) is used to adjust the LEDs lighting in the room. FLC has successfully demonstrated performance to control the output of LEDs as needed. If the LDR 1 input as indoor sensor shows dim, it will automatically turn on brightly. The MSE values for simulation and experiment of LDR 1 and LDR 2 were 34.42 and 30.11 respectively. The results of FLC performance in the simulation work are further validated by an experimental work. Experimental results show similarities compared to the simulation results.
Co-Authors A. Shah A.R. Husain Abdul Rashid Husain Abdullah Yusoff Adelia Putri Nur Ahni Ahmad Habibullah Ahmad Hoirul Aifaa Husna Asha’ri Amri, Aziezatul Nezirah Anggoro Fajar Dwi U Ariffin, Arihasnida Arihasnida Ariffin Asri Widowati Aziezatul Nezirah Amri Azizah, Safira Rusyda Azman Hasan Azman, M.N.A Azman, Mohamed Nor Azhari Badraningsih Lastariwati Bayu Setiaji Budiastuti, Pramudita Deny Budi Hertanto Dessy Irmawati Didik Hariyanto Dwi Esti Andriani Eko Prasetyo Enjang Akhmad Juanda Fanani Arief Ghozali G.D. Chen Gayuh Titis Permana Gita Juli Hartanti Hamzah, Norhasyimah Haryanto Haryanto Heru Raharjo Idris, Muhammad Ridzuan Imam Ma'arof, Nurul Nazirah Irdayanti Mat Nashir Irdayanti Mat Nashir Irwan Mahazir Ismail Irwan Mahazir Ismail Ismail, Irwan Mahazir Ismail, Mohamad Amiruddin Ismail, Mohd Erfy Istanto Wahyu Djatmiko Jamil Abd Baser Jamil Abd Baser Joko Laras B T Ketut Ima Ismara Khafidh Nur Aziz Khairul Azhar Mat Daud Kiong, Tee Tze Laras B T, Joko Leo Anang Miftahul Huda Lipur Sugiyanta M Noor A Azman M. Luthfi Hakim M.C. Wu Mahmud Arif Maisel Priskila Sisilia Maman Abdurohman Mat Daud, Khairul Azhar Mat Nashir, Irdayanti Mauludin, Moch Subchan Ma’arof, Nurul Nazirah Imam Mentari P Jati Moch Sukardjo Mohamed Nor Azhari Azman Mohammad Lutfi Mohd Erfy Ismail Mohd Erfy Ismail Mohd Hasril Amiruddin Muhamad Iskandar Muhammad Chirzin Muhammad Ridzuan Idris Nashir, Irdayanti Mat Nopadon Maneetien Norhasyimah Hamzah Nugraha, Ariadie Chandra Nurkhamid Nurkhamid Nurlia Sutiani Nurliadin, Nurliadin Nurul Nazirah Imam Ma'arof Nurul Wahidah Pipit Utami Pramono, H. S. Purwoko Haryadi Santoso Putut Hargiyarto R. Asnawi Rafif Apta Reswara Refalda, R. Rendy Mahaputra Retnawati, H. Ridho, R.N. Ridho, R.N. Rustam Asnawi S. Riyanto Shah, A Sigit Yatmono Singgih Dwi Prasetyo Siti Marfu’ah Sudiyatno Sudiyatno Susiwi . Suyanto Suyanto Tee Tze Kiong Thomas Köhler Triatmaja, A. K. Trisnoaji, Yuki Wiharto Wiharto Wiraguna, Rayie Tariaranie Yasmin Mufidah Yundari, Yundari Yusoff, Abdullah Yusuf Kurniawan Z. Mohamed Z. Mohamed Z. Mohammed Zaharuddin Mohamed