M katona@scientix 2011

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Mihajlo Katona: A unified platform for engineering education in Embedded Systems

Scientix European Conference, 6-8 May 2011, Brussels

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  • Power electronics equipment comprises of power hardware component and a very significant control software component.
    Power electronics software is typically a heterogeneous set of new and legacy software which is developed by numerous developers and a variety of
    tools during the PE hardware platform’s life time. It operates in real time and has to cover a large range of response times, roughly speaking from 1us to ms.
    Lack of advanced testing tools combined with the extreme requirements regarding the reliability of power electronics software leaves developers with few options besides the
    process of software testing using “live” power electronics hardware or it’s scaled models.
    This process is usually highly expensive and time consuming.
  • The existing power electronics hardware emulation tools show certain limits in both response time and flexibility. That fact usually limits their usage to testing the controllers under nominal conditions only.
    The need for real time digital simulators (RTDS) of power electronics systems with sub-microsecond latency and sampling time has been recognized in referent publications.
    Building on those results, this work looks closer into the ways to bring the RTDS technology in power electronics to the next level of performance, flexibility and ease of use.
  • The system should provide automatic testing of power electronics control software under all nominal, regular transient and fault transient conditions.
    Such a system needs
    * to have a low latency to accurately simulate the dynamic behavior of power electronic hardware,
    * to be general enough to cover a range of power electronics hardware configurations
    * and to be flexible enough to allow easy configuration by means of high level tools like Matlab SimPowerSystem toolbox.
    The structure of the proposed system is shown on the next slide.
  • M katona@scientix 2011

    1. 1. University of Novi Sad, Faculty of Technical Sciences research in service of innovation A Unified Platform For Engineering Education In Embedded Systems Mihajlo Katona, Nikola Teslic and Miodrag Temerinac Scientix European Conference 6-8 May 2011, Brussels, Belgium
    2. 2. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Embedded System? Embedded systems are the invisible electronics and software that bring intelligence to objects, processes and devices.
    3. 3. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Introduction  Growing need for embedded systems engineers  Significance of laboratory work in electrical engineering education  Active learning laboratory-based pedagogy  Lab/project based courses  Constant updates are needed to keep the course relevant  Problems
    4. 4. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Commercial education boards Digital design: 100€ - 20,000 € Microcontrollers: 70€ - 5,000 € DSP processors: 400€ - 6,000 € Enormous number of options !
    5. 5. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Academic feedback  Feedback received from global faculty and students across North America, Europe and Asia  Detected barriers in adopting laboratory-based active learning pedagogy  Too much time needed to learn a new tool for every class. Tools are complex, only a subset is needed.  Too much time to guide disparate design projects.  Design tools may need a lot of support. Many issues in software installation, revision, licensing and conflicts.  Facilities for design and prototyping are hard to acquire & maintain, very little reuse across courses.  Long cycle time to acquire parts and fabricate prototypes.
    6. 6. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Motivation  Define an approach to unifying a learning platform for embedded systems related lab based engineering courses  Target  increase efficiency of lab based education  Idea  use a single comprehensive platform for the complete curriculum
    7. 7. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Unified platform approach  Designed to cover all aspects of embedded systems learning  Digital system design  Computer system design, hardware & software  Digital signal processing of audio, video and data signal streams in real-time  Computer networks and interfaces  System integration
    8. 8. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Unified approach targets 1.Provide platform for cross-curriculum educational support in embedded computer engineering 2.Create universal curriculum with lab examples for learning process in the area of embedded computer engineering
    9. 9. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Board architecture (TLL5000 pilot)  Based on FPGA device  A number of peripherals and interfaces  ARM based housekeeping processor  Great expansion capabilities
    10. 10. University of Novi Sad, Faculty of Technical Sciences research in service of innovation TLL5000  TLL5000 development system provides education of students during entire curriculum in basic electrical and computer engineering studies  Already in educational process on  University of Novi Sad, Faculty of Technical Sciences, Serbia  University of Texas-Austin, Austin, TX, USA  University of Wisconsin-Madison, Madison, WI, USA  College of Engineering, Needham, MA, USA  I.I.I.T.-Bangalore, Bangalore, Karnataka, India
    11. 11. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Academic experience  The University of Novi Sad is one of the two leading universities in Serbia  Study group for Computer Engineering and Computer Communication in the Faculty of Technical Sciences  practical exercises play an important role with 15 courses having practical exercises as mandatory  Over the years we have used different platforms for different courses  We usually needed 3 or 4 out of 15 laboratory exercise for platform introduction and familiarization with development environment  which is a 20-30% overhead on top of class learning time
    12. 12. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Academic experience  To improve learning efficiencies, it was decided to use the developed platform across all embedded systems related courses.  In current curriculum the design platform is used at  Digital Design Principles (2nd year)  Computer Architectures (3rd year) and  Advanced Chapters in Digital Design (3rd year)  Introduction of the platform required only mild modifications to the covered courses
    13. 13. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Students Perspective
    14. 14. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Additional Information  Ravel, M.; Chang, M.; McDermott, M.; Morrow, M.; Teslic, N.; Katona, M.; Bapat, J., 2009, A Cross-Curriculum Open Design Platform Approach to Electronic and Computing Systems Education, IEEE International Conference on Microelectronic Systems Education, pp.69 – 72  Majstorovic D., Neborovski E., Katona M., 2010, A Cross- Curriculum Embedded Engineering Learning Platform, 33rd International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO 2010/CE), pp. 283-288  Kastelan I., Katona M., Majstorovic D., Neborovski E., 2011, Students Perspective of the Embedded Engineering Learning Platform - a Case Study in Digital Design, 34th International Convention MIPRO 2011/CE, May 23–27, 2011., Opatija, Croatia, accepted for publication
    15. 15. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Conclusion  We presented an approach to unifying a learning platform for lab based courses in engineering related to embedded systems.  It is based on the developed platform designed to cover a complete process of embedded systems learning.  Academic experience justified the approach.  As expected, positive effects were more pronounced in later courses.
    16. 16. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Future work  We plan to introduce a new late undergraduate project based course that will integrate all student knowledge from embedded system design.  Hardware-software co-design  Emphasis on system integration  Another direction of the future work is to prepare a teaching platform redesign needed to keep up with constant advance in technology.
    17. 17. University of Novi Sad, Faculty of Technical Sciences research in service of innovation Thank you for your attention www.rt-rk.uns.ac.rs Mihajlo.Katona@rt-rk.uns.ac.rs Supported by www.rt-rk.com

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