A review on cost-efficient virtual laboratory: A teaching aid
18 Jul 2017-pp 663-667
TL;DR: The general framework and study of related work done in this field by using different software tools like MATLAB/Simulink, Lab VIEW, Proteus, Pspice etc. and hardware methodologies which help the student to learn and apply the concepts more effectively in the real world are presented.
Abstract: Laboratories in education are the ideal place where students practice the concepts by doing The cost-efficient laboratory enhances the learning of students by exploring the concepts practically using Computer-aided tools and interfacing the developed model to hardware for practically visualizing the propagation of the signal This paper presents the general framework and study of related work done in this field by using different software tools like MATLAB/Simulink, Lab VIEW, Proteus, Pspice etc and hardware methodologies like DSP processor, FPGA board, DSK board, Arduino kit etc which help the student to learn and apply the concepts more effectively in the real world
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TL;DR: In this paper , the authors present the design and development of a remote interactive laboratory for the teaching and practical learning of DC machines at Technical and Vocational University, which is designed using the Arduino board to make a data acquisition card and actuator controller.
Abstract: Practical study such as laboratory activity helps students to learn about engineering technical courses. New electronic technologies and the Internet of Things allow students and researchers to do experiments remotely. During quarantine due to pandemics such as Covid‐19 or when researchers and students are not present in the university, remote laboratories are used as a complementary teaching feature. In these conditions, the remote laboratories also allow the development of experimental‐based research. This paper presents the design and development of a remote interactive laboratory for the teaching and practical learning of DC machines at Technical and Vocational University. This laboratory is designed using the Arduino board to make a data acquisition card and actuator controller. Also, LabVIEW is used, which is remotely controlled based on the Internet and allows students to observe and perform experiments related to the DC machines course anywhere and anytime. In this laboratory, to better adapt to the Accreditation Board for Engineering and Technology criteria, the principle of teamwork to perform the experiments and achieve the final result has been considered. The case study results of a remote laboratory in Mohajer Faculty present the students' understanding and satisfaction in obtaining the required scientific competencies from the proposed laboratory.
3 citations
01 Sep 2021
TL;DR: In this article, a hardware-in-the-loop simulator for control of power electronics systems laboratory is presented, which uses a low-cost analog I/O hardware to link the physical control signal to student's PC and act as a virtual power electronics circuit simulator.
Abstract: Laboratory is very important in engineering education but setting up a laboratory is related in a huge investment. Traditional laboratory also requires students to present at the laboratory. Since 2020, the COVID-19 outbreak prevents students from the onsite studying. The lecture class can be deficiently substitute by online class but the laboratory is heavily impacted and still has no good solution. A virtual laboratory or a low-cost hardware-in-the-loop can reduce the severity of the problem. This paper presents a new hardware-in-the-loop simulator for control of power electronics systems laboratory. The proposed system uses a low-cost analog I/O hardware to link the physical control signal to student’s PC and act as a virtual power electronics circuit simulator. As the PC is not the real-time high-performance simulator, the time-scaling technique is used. The result and discussion have shown that the developed system is very useful in many aspects.
3 citations
29 Apr 2020
TL;DR: The results show that all modules developed can display the same characteristics as their theoretical character and are suitable for use as a medium for basic electronic practice using PSPICE-based virtual laboratories.
Abstract: The availability of modules to support basic electronic practices based on virtual laboratories has not yet met the needs. The purpose of this development research is to produce basic electronic practice learning devices based on the PSPICE application program. The development procedure uses ADDIE (analysis, design, development, implementation, evaluation). ADDIE is used to direct the design process as specified. Product performance was tested using ongoing formative evaluation. The product feasibility test uses a comparative analysis of the results of the PSPICE experiment against the theory. The results show that all modules developed can display the same characteristics as their theoretical character. The results show that the modules have very good performance. Modules are suitable for use as a medium for basic electronic practice using PSPICE-based virtual laboratories. The products are in the form of electronic circuits with 31 schematic PSPICE formats. Product results to support basic electronic practices covering topics: capacitor filling and discharging, RC circuits, diode characteristics, wave forming circuits, rectifier circuits, voltage clamp, voltage circuits, transistor characteristics, and amplifier transistor.
3 citations
Journal Article•
TL;DR: Just like the digital libraries is complementing University physical libraries, VL could also be adopted to complement PL used in teaching and learning science and engineering courses whether on face-to-face or Open and Distance Learning (ODL) mode.
Abstract: Physical laboratory (PL) is widely considered to be essential to learning and teaching science and engineering related courses. However, developing countries including Nigeria have struggled to provide quality training to students in the above fields due to inadequate laboratory facilities. The need to finding and adopting viable alternatives has become necessary. This paper proposed the adoption of virtual laboratory (VL) as a standard e-learning tool to complement the inadequacies of PL in Nigeria tertiary educational institutions. The paper reviewed several successful application of VL, comparison between VL and PL were made and suggestions on some justifications for adoption outlined. It concluded that, just like the digital libraries is complementing University physical libraries, VL could also be adopted to complement PL used in teaching and learning science and engineering courses whether on face-to-face or Open and Distance Learning (ODL) mode. The great potential that lies in VL offers the possibility of it being an alternative/ replacement of PL in most science and engineering disciplines in future, especially for those experiments learner decisions or actions are not based on tactile or olfactory sensory cues.
3 citations
04 Nov 2020
TL;DR: In this paper, the authors present the complete methodology followed in designing and implementing a laboratory setup to teach Controller Area Network (CAN) protocol, which is a simple two-wire differential serial bus system.
Abstract: In recent days, high interest is paid on topics related to industrial automation in electrical engineering degree courses. Industrial communication protocol is necessary to teach in such courses. The Controller Area Network (CAN) protocol is a simple two-wire differential serial bus system. This research paper presents the complete methodology followed in designing and implementing a laboratory setup to teach Controller Area Network protocol. Implementation of the laboratory setup is presented. MCP2515 CAN controller and TJA1050 CAN transceiver are used to implement CAN communication in each node with Atmega328P microcontroller. Students can observe the data in the CAN bus using vCAN analyzer. Also, waveform of the CAN bus can be observed in the digital oscilloscope. Students are provided with a lab sheet containing challenging laboratory exercises. They are also given components to do a hands on practical to make two CAN nodes. With that they can understand the functions and properties of CAN while identifying hardware related to CAN nodes. Students are also given chance to understand some standards related to CAN protocol. Experimental results are also presented validating the accuracy of the work done and improvement of the learning experience.
2 citations
References
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TL;DR: An ultra-low-cost wireless communications laboratory that is based on a commercial off-the-shelf field programmable gate array (FPGA) development board that is both inexpensive and available worldwide is presented.
Abstract: This paper presents an ultra-low-cost wireless communications laboratory that is based on a commercial off-the-shelf field programmable gate array (FPGA) development board that is both inexpensive and available worldwide. The total cost of the laboratory is under USD $200, but it includes complete transmission, channel emulation, reception (coherent and noncoherent), and probing capabilities. Over 15 different modulation types are currently supported. The laboratory, aimed primarily to serve as a teaching aid for a professor teaching senior undergraduate courses and projects, allows students to have visual real-time demonstrations in wireless communications systems. The laboratory is also powerful enough to allow experienced researchers to carry out wireless communications research projects. In this context, the laboratory is particularly useful for universities in developing countries, where budgets are extremely limited. Numerical and written survey results are presented that were collected from two classes of students taught by the author in a university in Colombia, South America, and which show the effectiveness of the laboratory in teaching wireless communications.
39 citations
"A review on cost-efficient virtual ..." refers background in this paper
...Another approach to design a low cost laboratory for wireless communication is presented in [9] (2012)....
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TL;DR: Use of the World Wide Web to facilitate learning of basic, theoretical, technical material is described in terms of the experience in developing interactive demonstration and exercise modules focusing on Fourier analysis, convolution, the sampling theorem, and elementary control systems.
Abstract: Use of the World Wide Web to facilitate learning of basic, theoretical, technical material is described in terms of our experience in developing interactive demonstration and exercise modules focusing on Fourier analysis, convolution, the sampling theorem, and elementary control systems. Early attempts involved multimedia presentations and downloadable MATLAB M-files, or server computations initiated by CGI forms. More recently, Java applets have been used to improve immediacy and interactivity while dramatically reducing server burden. Currently we are integrating audio with the demonstrations, and developing interactive lecture modules as possible replacements of classroom lectures for certain types of material.
30 citations
"A review on cost-efficient virtual ..." refers background in this paper
...Steven Crutchfield and Wilson Rugh (1998)[2] demonstrated the effective use of World Wide Web for creating interactive session for the basic concepts of signal processing like sampling theorem, convolution, fourier analysis and control theory....
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18 Dec 2013
TL;DR: A web based virtual laboratory for electromagnetic theory course taught at undergraduate level, which can be used as a didactic tool by teachers and as a self learning tool by students is presented.
Abstract: Electromagnetic theory is one of the core subjects in Electrical/Electronics and Communication Engineering. It involves many concepts that are abstract and difficult to visualize, hence learning or teaching it is a challenge. This paper presents a web based virtual laboratory for electromagnetic theory course taught at undergraduate level, which can be used as a didactic tool by teachers and as a self learning tool by students. A set of ten topics have been chosen which broadly cover the basics of electromagnetic theory. The laboratory helps the students to visualize and experiment with abstract concepts of electromagnetic theory. It also contains theory supporting the experiment to aid teaching-learning process. The laboratory contains evaluation sections to assess student's understanding before and after performing virtual experiment. Assessment of the virtual lab done by evaluating students and feedback about the laboratory collected from both teachers and students are presented.
21 citations
12 May 2008
TL;DR: Some of the real-time DSP-based community outreach efforts, and more traditional engineering courses, that have been facilitated by tools such as winDSK6 and the DTMF decoder/power switch box are described.
Abstract: For some time, the authors have been suggesting and providing proven DSP teaching tools that have helped motivate students and faculty to implement real-time DSP-based systems to enhance education. These efforts have emphasized the fact that DSP is much more than just a collection of theories and problem solving techniques, and that hands-on experience with hardware is extremely beneficial. In addition to facilitating the education of numerous engineers and engineering students, these same tools have allowed us to reach out into our local communities and encourage future college students to consider studying engineering. This paper describes some of our real-time DSP-based community outreach efforts, and more traditional engineering courses, that have been facilitated by tools such as winDSK6 and the DTMF decoder/power switch box.
18 citations
"A review on cost-efficient virtual ..." refers methods in this paper
...(2008) in [3], uses a different approach by utilizing hardware WinDSK6 with its software package along with DTMF decoder/ power switch box for the interactive learning of signal processing concepts....
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06 Nov 1996
TL;DR: This work describes the use of SIMULINK and MATLAB in Nonlinear Systems Analysis and Stability course which is offered to advanced undergraduate and graduate students at the Pennsylvania State University the University of Arkansas.
Abstract: Control system design packages like MATLAB, MATRIXX, Control C, SIMNON, etc. have become essential ingredients of both undergraduate and graduate courses in the systems and controls area. The use of MATLAB and its companion toolboxes in teaching graduate and undergraduate courses have been reported by many educators in the past. This work describes our experience, at the Pennsylvania State University the University of Arkansas, with the use of SIMULINK and MATLAB in Nonlinear Systems Analysis and Stability course which is offered to advanced undergraduate and graduate students. This paper will emphasize on the use of SIMULINK for simulation of nonlinear systems and study of their behavior. We also present the MATLAB features that are found useful in this course. A discussion of how SIMULINK and MATLAB help in enhancing the students' understanding of the material and reducing the amount of time spent in performing computational homework assignments will follow. Examples illustrating the use of these packages will be included and the actual code will be posted at a site on the World Wide Web. Finally, the general positive student reaction to incorporating these software packages into this course will be reported.
16 citations