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Remote - DSP Lab for Distance Education

Remote - DSP Lab for Distance Education. http:// rdsplab .physics.upatras.gr. Kalantzopoulos Athanasios, Karageorgopoulos Dimitrios Zigouris Evangelos Electronics Laboratory, Electronics & Computer Div., Dept. of Physics, University of Patras, Greece. Remote Laboratories. Advantages:

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Remote - DSP Lab for Distance Education

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  1. Remote - DSP Lab for Distance Education http://rdsplab.physics.upatras.gr Kalantzopoulos Athanasios, Karageorgopoulos Dimitrios Zigouris Evangelos Electronics Laboratory, Electronics & Computer Div., Dept. of Physics, University of Patras, Greece

  2. Remote Laboratories Advantages: • Higher availability of lab equipment • Efficient exploitation of time • Sharing of hardware across institutions • Relatively low cost Types of Remote laboratories: • Sensor • Batched • Interactive 2

  3. R-DSP LabA Remote Lab for DSP Systems Design • Introduction • R-DSP Lab’s Architecture • Main Web Server • Workstation • Security • Designed Toolkits based on LabVIEW • Remote Laboratory Exercises • R-DImPr Lab 3

  4. R-DSP LabIntroduction Is an interactive and user-friendly Remote Laboratory Is focused on DSP Systems Design for Signal Processing Is accessible through a common Web Browser Has carefully designed GUIs in order to provide accurate representation of real instruments 4

  5. R-DSP Lab’s Architecture 5

  6. R-DSP Lab’s Architecture 6

  7. Main Web Server (1/2) • Undertakes the reception of the visitors • Secures the R-DSP Lab with authorization procedures • Redirects the authorized users to the workstations according to a distribution logic • Stores statistical information of the use of the R-DSP Lab 7

  8. Main Web Server (2/2) Technologies and tools used for the Main Web Server: Apache Web Server MySQL Database PHP HTML 8

  9. R-DSP Lab’s Architecture 9

  10. Workstation (1/2) Allows the communication between the authorized users and the lab equipment The design and development is determined by: the object of laboratory exercises the lab equipment Can serve up to three users simultaneously 10

  11. Workstation (2/2) R-DSP Lab’s Workstation consists of: A Windows based PC A development platform DSK C6713 by Spectrum Digital based on TMS320C6713 DSP of TI A TDS 1012 Oscilloscope by Tektronix A TG 2000 DDS Function Generator by TTi A USB Webcam 11

  12. Workstation’s Block Diagram 12

  13. Workstation (1/2) In every R-DSP Lab’s Workstation three LabVIEW-based applications run in order to serve up to three users simultaneously. Each application: Allows a single user to control the Workstation remotely through a Web Page Has user-friendly Graphical User Interfaces – GUIs Controls the Function Generator and Oscilloscope 13

  14. Workstation (2/2) In every R-DSP Lab’s Workstation three LabVIEW-based applications run in order to serve up to three users simultaneously. Each application: Controls Code Composer Studio (CCS) v3.1 and DSK C6713 using the LabVIEW to CCS toolkit Connects to MySQL database using the LabVIEW to MySQL toolkit Captures images from a USB Webcam 14

  15. R-DSP Lab’s GUIs (1/2) R-DSP Lab’s GUIs were carefully designed in order to provide the most accurate representation of the features and operation of the real instruments: Function Generator’s GUI Real Function Generator 15

  16. R-DSP Lab’s GUIs (2/2) Oscilloscope's GUI Real Oscilloscope 16

  17. Laboratory Exercises • Students are asked to design a set of laboratory exercises: • FIR digital filters • IIR digital filters • 512-point FFT • Students must: • Design and simulate their solution using a scientific software package • Write the code that implement their solution in C or Assembly language using the CCS and create the executable file • Login to the R-DSP Lab • Upload the executable file to the R-DSP Lab • Verify the correct function of their solution using an available Workstation 17

  18. R-DSP Lab from User Side (1/4) 18

  19. R-DSP Lab from User Side (2/4) 19

  20. R-DSP Lab from User Side (3/4) 20

  21. R-DSP Lab from User Side (4/4) 21

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