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This paper presents a new model for using real instrumentation laboratories for digital signal processors (DSP) training on the Internet employing a virtual environment based on Labview. Remote instrumentation interest has been growing immensely as a result of the telecommunication network development and middleware technologies, specially remote s...
Context in source publication
Context 1
... proposed system uses the LabVIEW build-in Web Server. It is easily implemented using a “Web Publishing Tool” to create a remote panel. Remote panel can be used to design and develop low cost and user–friendly Internet-accessible VIs, remote monitoring and control, distributed computing, and collaboration frameworks. For this purpose, the client machine will use a plug-in to connect to the server machine, through a conventional webpage. To create a remote panel, one first develops the Virtual Instrument, then uses the WEB Publishing Tool to create the remote panel. Once the remote panel is created, a web server internal to LabVIEW is started and the remote panel may be accessed via any web browser. LabVIEW departs from the sequential frame of traditional programming by offering a graphical user environment with the tools necessary for data acquisition, analysis, and presentation. LabVIEW allows to define the required instrument functionality, and it features a graphical programming language called "G" that uses a block diagram method to construct the program before it is compiled into machine code. Language G [16] and LabVIEW libraries (that implement controls) are used to design the GUI (Graphical User Interface), and GPIB access (see Fig. ...
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Under the influence of modern vocational education, virtual simulation experiment teaching is widely used as a new teaching method. The traditional electrical and electronic virtual simulation experiment teaching platform has low sensitivity and poor interaction. In this paper, a new kind of virtual simulation experiment teaching platform of electr...
Citations
... Nevertheless, the teaching methodology has been maintained in most cases as it was in the past: chalk-and-board lectures with the help of slides following a teacher-centred approach [3][4]. Different attempts have been made to include new technologies in the form of simulation activities or lab teaching [5][6], but in most cases the interaction of students with the teacher or other students is kept low. Although, there is no doubt that standard lectures are extremely useful and efficient to deliver knowledge, especially in groups with a high number of students, it maintains the student in a passive role and this limits the creative thinking and the training of cross competences (e.g. ...
... Remote control of instruments can be also used in so called remote laboratories, to offer access to laboratory equipments and to facilitate users to learn from home [2], [3]. A remote instrumentation laboratory eDSPLab was implemented at University of Seville, Spain, where students interact through Internet with the development boards from the physical lab for real-time programing of digital signal processors [4]. Another Web-based remote laboratory was developed at Firat University, Turkey, to control an electric motor, all the measurement instruments used in experiments are remotely controlled and monitored via Internet [5]. ...
... Based on the framework, a remote DSP-based remote control laboratory is designed. Barrero et al 4 . developed a framework named as eDSPlab for remote accessing and controlling the DSP devise real instrumentation. ...
... Some years ago it was included in the curriculum of electrical engineering students by practical approaches involving experiments in electronics (Alsaialy et al., 2003;Higa et al., 2002). It is also possible to highlight a long list of applications using LabVIEW, among which we cite a system to analyze and monitor the mechanical vibration of industrial machines ( Lita et al., 2005); a remote-accessed instrumentation laboratory for digital signal processors training on the Internet ( Gallardo et al., 2006); a solution of data acquisition/distribution designated for remote process control and long distance learning (Sgârciu & Stamatescu, 2010); a tele-health system that detects changes in heart rate and blood pressure of the patient in advance and sends an alert SMS to the doctor ( Sukanesh et al., 2010); and a low cost system to monitor and control laboratory instruments remotely by SMS ( Figueiredo et al., 2009). This chapter will be developed based on this last application, focusing on the necessary steps for the LabVIEW-based software development and describing all the programming details for creating a remote monitoring and control system using LabVIEW and SMS. ...
... These courses mostly focus on the general signal processing techniques such as quantization, filter design, Fast Fourier Transformation (FFT), and spectral analysis [1, 2, 3]. Because of the increasing popularity of Web-based education and the advancements in streaming media applications, several web-based DSP Laboratory courses have been designed for distance education [4, 5, 6, 7, 8]. An internet-based signal processing laboratory that provides hands-on learning experiences in distributed learning environments has been developed in [6]. ...
This paper describes the development of an audio processing laboratory curriculum at thegraduate level. A real-time speech and audio signal-processing laboratory is set up to enhance speech andmulti-media signal processing courses to conduct design projects. The recent fixed-point TMS320C5510DSP Starter Kit (DSK) from Texas Instruments (TI) is used; a set of courseware is developed. In addition,this paper discusses the instructor’s and students’ assessments and recommendations in this real-timesignal-processing laboratory course.
... Nowadays great efforts have been made in virtual or remote labs activities in engineering education and many proposals have been presented in the literature all over the world in conference proceedings and/or journals [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] In previously presented articles about remote lab shows that they have some common techniques and features. There are mainly three topics that should be fulfilled and highlighted in a remote lab: * Configurability. ...
... For example, in Ref. [26] while Sensor and Signal conditioning subject is under consideration in Refs. [7,23] Signal processing subject is discussed. ...
... There is no additional software required on the client computer side other than an internet access, a web browser, and LabVIEW Runtime Engine [1]. Web Publishing Tool is used to publish all experiments VI panels to World Wide Web for monitoring and control by the client side [23,24]. LabVIEW is also used in user interface design. ...
In this article, selected applications from the experiments included in undergraduate Electronics and Computer Education curriculum are transformed into remotely accessible and configurable manner. The experiment user interfaces and publishing over the internet is developed in LabVIEW. These experiments are suitable for online conduction where students are either in-class or laboratory on-campus and/or at home. In this work, four different remotely configurable experiment modules are designed and implemented. Remotely configurable facility in a predefined range is performed by using switches activated by DO terminals of a data acquisition card through a web-based application. In this way, students can select the desired experiment from the ones stored on the PCB, adjust the voltage applied to the input terminal of the circuit and change the circuit elements values by using telepresence methodology. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 18: 709–720, 2010; View this article online at wileyonlinelibrary.com; DOI 10.1002/cae.20276
... In addition, this remote laboratory includes a booking system, which enables remote users to book experiments in advance. The eDSPlab [12] is hosted at the Electronic Engineering Department of the University of Seville and is used in an undergraduate microprocessor course. The laboratory uses as device under test a Texas Instruments TMS320C30 digital signal processor connected to a waveform generator and a common oscilloscope. ...
This paper presents a web-based laboratory to practice with embedded systems and in particular with Digital Signal Processing. The laboratory has been developed using a service oriented architecture to guarantee flexibility and interoperability with different electronic devices. Moreover it provides end users with a web based interface directly accessible through Internet and employees a wide range of modern Web 2.0 technologies. This approach allows creating complex web applications avoiding to install any plug-in on users’ browsers. The paper presents how the remote laboratory can be used in an e-learning scenario and details how it can be integrated in feasible educational path based on common learning platforms such as Moodle.
... There is a major trend of using new technologies as pedagogical tools. Inside asynchronous methodologies, e-learning and virtual labs have been design and implemented, giving the student the possibility of remote access [14][15][16]. However, the use of the new technologies in these contexts is not completely useful to break the teacher-centred teaching and promote the students' interaction and collaborative attitude. ...
A teacher-centred pedagogical approach and a technical content disconnected with real world industry applications are two of the main causes that explain a low motivation in engineering studies. This work proposes a learner-centred interactive methodology together with a project-based teaching to overcome both problems and achieve a life-long learning. The proposed methodology is successfully applied to different subjects in the Electrical Engineering studies at the University of Málaga.
... Among them, companies use remote control and off-presence monitoring, and researchers and students make use of distance learning, virtual laboratories, along with other resources. There are various recent application examples, such as a virtual laboratory prototype [1] for Digital Signal Processors (DSP) training, in which the virtual environment is based on LabVIEW and the access is done by the web. In addition, a virtual laboratory permits remote access via TCP/IP, enabling control and supervision through the Internet [2], and a webbased remote control laboratory employs a greenhouse scale model for teaching greenhouse climate control techniques using different hardware and software platforms [3]. ...
... As it can be seen from the above, powerful programming tools with the Internet allows the management of a industrial equipment or even the remote control of a laboratory instrument with graphical interfaces that are a virtual and real-time copy of the device [1][5] [6], making the necessary broadband connection to specific devices in order to access the network. Simple text command can meet the needs to monitor and control instruments remotely using the Short Message Service (SMS). ...
... Indeed, this project is a framework for instrument control using dataflow oriented LabVIEW graphical programming. This software has shown to be an efficient tool in virtual laboratories [1][2][3]. Further, the graphical language permits the development of programs by inexpert users [6] [9]. Thus the project described here provides the necessary steps to the development of an application with an easy adaptation in accordance to the user's needs. ...
Remote applications are becoming widely used in various fields such as industry, education, and security. This paper presents a low cost system to monitor and control laboratory instruments remotely by Short Message Service (SMS). The system has been designed using the National Instruments Laboratory Virtual Instrument Engineering Workbench (LabVIEW) development system. The user sends commands using a mobile phone remotely connected to a modem. The software recognizes the received code and transmits the command to the instrument. The system was successfully tested locally and remotely in a signal measurement procedure.
... In fact, the sales of DSP devices exceed the sale of general-purpose microprocessors by almost 10:1 (Hong et al., 2004). Furthermore, one of the most demanded job profiles in the ICT sector is related to the design of DSP applications as it is claimed in the Career Space initiative (Office for Official Publications of the European Communities, 2001, Toral et al., 2006). The DSP Applications Designer is involved in requirement studies, simulations and performance analysis, and participates in the design and optimization of algorithms for signal modulation, detection and channel coding/decoding, and implementation with ...
... Within this context, a learning management system for laboratory experiments based on DSK6711 or DSK6713 is consequently a topic of interest in an Advanced Microprocessor course. Thus, the inclusion of DSP and DSP devices in the Telecommunication Engineering undergraduate curriculum has been promoted at the University of Seville, Spain (Gallardo et al., 2006). The idea of a remote and interactive laboratory based on the DSK6711 and the implementation of measurement systems arises from the necessity of a suitable educational tool capable of supporting a face-to-face laboratory training methodology. ...
... At this moment, the user access is managed at the LMS level using a TDM (Time Division Multiplexing) strategy. Firewall restrictions are solved using the LabVIEW build-in web Server (Gallardo et al., 2006). A remote panel which can be accessed through a web browser has been designed so the client machine, using a plug-in, can exchange data with the server machine. ...
Purpose
The purpose of this paper is to present a remote lab and a web‐based teaching environment which provides access for remote control of Digital Signal Processors (DSP device) and real instrumentation. The framework, named eDSPLab, has been designed using LabVIEW for debugging and testing Digital Signal Processing (DSP) experiments in a real lab without physical and temporal restrictions, and it has been integrated as a service in a modern e‐learning application domain and a Learning Management System (LMS) to reinforce its utility.
Design/methodology/approach
A literature review is presented to provide background to the progressive role that DSP and DSP devices play in Information and Communications Technology (ICT)‐demanded job profiles, and the role that a computer‐mediated environment plays in modern teaching methodologies. The web service access control architecture is defined.
Findings
The paper provides new insights into the use of the Internet for laboratory teaching.
Research limitations/implications
This research was limited to one particular remote lab. Results could be extended if students' perceptions and their acceptance of the new e‐learning technology are examined using an information system theory, such as the Technology Acceptance Model (TAM).
Originality/value
This paper fulfils a need for adapting the teaching methodology applied in an undergraduate Advanced Microprocessor course of the Telecommunication Engineering degree at the University of Seville, Spain, allowing the development of laboratory experiments anywhere and anytime, avoiding one of the problems in lab training: the low number of laboratory working places in relation to the high number of enrolled students. The system developed has been successfully used during the last academic years in a course involving more than 200 students.
