Halmstad Colloquium is an international speaker series open to the public. The lectures are also filmed and published on the University's Youtube channel.
Distinguished speakers from universities, research organisations and companies around the world are invited to Halmstad Colloquium to talk about topics related to the research environment Information Technology. The speaker series was founded by Walid Taha at the School of Information Technology in 2012.
Upcoming talk – September 17
"Reliability, Availability and Safety Design Tools for Industrial Applications"
Marco Mugnaini, Associate Professor at the University of Siena, Italy.
Time and place:
September 17 at 13:15 in room Q149 (Black Box) at DLC in house Q (campus map)
No registration is needed.
About the talk by Marco Mugnaini
"Reliability, Availability and Safety Design Tools for Industrial Applications"
The aim of this talk is to provide an overview of basic modelling techniques involving failure modes, reliability, availability and safe design. In addition to traditional and well known statistical models, innovative modelling techniques based on statistical data representation will be introduced and tailored to some specific case studies in the fields of transportations and oil & gas contexts.
Scientific and industrial worlds have recently started to look again with interest to the basic rules to perform reliability, availability and safety analysis and design on complex electro-mechanical systems. The main failure modes on electronic devices and sensors as well as the main techniques for failure mode investigation are of interest in modern system design. Statistical characterization of the main probability density functions and degradation models of innovation is mandatory to build lasting and safe products.
The main reliability design techniques such as fault tree analysis, cut set method, minimal path approach, critical block analysis for reliability are requested by companies worldwide as well as the knowledge of the main failure modes and reliability databases and handbooks as for example MIL-HDBK217, OREDA and BELLCORE. Maintenance policies with special attention to corrective and preventive ones are also affected by reliability design in terms of advantages and disadvantages when applied to electro-mechanical systems. The main safety standards, as IEC61508, IEC 61511 and EN50129, EN50128, EN50126, are usually considered in industrial design.
About Marco Mugnaini
Marco Mugnaini got his Ph.D. in Reliability Availability and Logistics, University of Florence, Italy, 2003 and the Laurea Degree (110/110 cum Laude) in Electronics Engineering with major in Non Linear Automatic Controls, University of Florence, Italy, 1999.
Currently he is Associate Professor (2019) at the University of Siena (Manager of the electronics training lab.), University of Siena, Italy. He has been Assistant Professor at the University of Siena from 2005 to 2018.
Marco Mugnaini was appointed as faculty and Professor at the Electrical and Electronics Technology Dept. at the Higher Colleges of Technology Abu Dhabi, UAE in 2012–2013. From 2005 to 2012 he was Assistant Professor at the University of Siena (Manager of the electronics training lab.), University of Siena. He is Co-founder of the SENSIA SrL Company, Italy, 2008, Co-founder of the DESMOWEB SrL Company, Italy, 2009 and was employed as Product Safety Engineer at General Electric (GE) Power System Oil and Gas Division with the responsibility of leading the design for safety of five production sites (AC Compressor, Gemini, Rotoflow, Thermodyn, PII), Florence, Italy, from 2003-2005. He also acted as Consultant for Borri Industrial Power Solutions S.p.A. 2002-2011, for Astrid Energy Enterprises S.p.A. 1999-2000 and for CETACE, Magnetek S.p.A. 1999-2000 in the areas of reliability for electronics and mechanics. He got the Certification as Labview Associate Developer, Green Belt Certified, CAP (Change Acceleration Process). He is IEEE Senior Member. In 2003 Marco Mugnaini received the award for the best National Ph.D. thesis in the maintenance context from CNIM (National Italian Center for Maintenance).
During his career, Marco Mugnaini also covers or has covered the following roles:
- Editor in Chief of the International Journal of Instrumentation Technology (IJIT)
- Associate Editor of the International Journal of Power Electronics and Drives
- Editorial Board of the “Safety” Journal MDPI since 2015
- Organizing committee member of IEEE student competition UAE, 2013
- Stirring Committee of IEEE student competition UAE, 2013
- Judges Coordinator of IEEE student competition UAE, 2013
- Director of the educational Electronics and Electronic Measurement Laboratory.
- 2006 RAV member (Faculty auto evaluation board)
- Member of the Board of Electronic and Telecommunication Branch since 2010
- He has also been in years associate Technical Program Chair for the following Conferences:
- IEEE Sensor application Symposium (IEEE SAS)
- IEEE Multi-Conference on Systems, Signals & Devices SSD
- IEEE Instrumentation and Measurement I2MTC
- Rector delegate for the Safety Manager Intra Faculty Regional Organization since 2010-2011
- Reviewer for IEEE Transaction on Instrumentation and Measurement, for IEEE Transaction on Neural Networks Journals, JCST and IEEE IMSC coordinator.
- Member of the Ph.D. School Board in Bionformatics (GENOMEC) University of Siena since 2009 and up to 2017
Marco Mugnaini is the author and co-author of more than 135 papers in international peer reviewed journals and conferences, and of 6 national and international patents.
Upcoming talk – date to be decided
"Car radars which shine into one another – there ought to be a problem?"
Hans Hellsten, SAAB Surveillance and Adjunct Professor at Halmstad University
Time and place:
To be decided
About the talk by Hans Hellsten
Radar for car collision avoidance has been around for decades, though cost constraints prevented any wide spread use. The revolutionary development in microelectronics during the past few years has changed this situation completely. Today even multiple radar units are becoming standard equipment in almost all new cars.
An issue in this massive exploitation of radar will be the mutual interference between radar units in congested traffic. Several circumstances combine to make the issue particularly acute: Only a few Gigahertz order bands are allocated for car radar whereas the car radars needs Gigahertz order bandwidth for the resolution it is required to obtain. Moreover radar exploits two-way propagation, whereas interference primarily is due to one way propagation. Hence even weak interference is likely to impose higher signal levels in a radar, than the actual radar returns.
Historically, radar bandwidths have been small and the radars relatively few. Thus there was little need for mutual cohabitation between radars operating in the same band, which is obviously in total contrast to communication where mobile phones have been developed around allowing precisely such cohabitation.
The presentation describes how radar signals just as communication signals can be coded to be mutually orthogonal even though they all reign within the same frequency band, and without the radar performance being degraded by this orthogonality. The proposed scheme allows up 6000 non-interfering users of a particular radar band - all operating in the immediate vicinity of each other. Certainly the concept calls for a change in the design of the actual radar system, as well as adoption of new signal processing methods, which will be duly accounted for in the presentation.
The presentation will also broaden the scope somewhat, also considering cohabitation between wide band radar signals and comparatively narrow band communication, which is of relevance for wide band radar concepts as considered by Saab and other radar developers. For these methods, as well as for the particular case of automotive radar, verification has been and is conducted, as also will be accounted for.
About Hans Hellsten
Hans Hellsten basic expertise is as a theoretical physics doctor. He started radar research at the Swedish Defense Research Agency FOI, subsequently appointed Research Director, and from 1986 directed development of new methods for meter-wave synthetic aperture radar. The work soon acquired significant national and international interest, and a major Swedish foliage penetration meter-wave SAR research program was formed. Amongst various achievements the airborne CARABAS I and II radars were produced.
In 2001 Hans Hellsten took the position of principal engineer for meter-wave radar development at Ericsson Microwave Systems – nowadays Saab Surveillance. He there directed the development of foliage penetration radar system modeling and optimization run in parallel with experimental verification, with the CARABAS III radar system built for this purpose. In a joint Halmstad/Saab research effort he is currently developing new methods for suppressing mutual interference between radars and between radar and communication.
Hans Hellsten is senior radar expert at Saab, and adjunct professor in radar systems at Halmstad University. His work has led to a large number of patents and scientific publications, and has rendered him the Polhem Prize for technological innovation, the Gold Medal for outstanding engineering work from the Royal Swedish Academy of Engineering Sciences – IVA - and the Thulin Medal for aerospace technology achievements. Recently he made a cohesive account of foliage penetration technology and physics in the form of the book “Meter-Wave Synthetic Aperture Radar for Concealed Object Detection” available from Artech House Publishers.
”We gather the most renowned researchers within their fields, and make it possible for interested viewers around the world to listen to their talks.”
Walid Taha, Professor in Computer Science at the School of Information Technology and founder of Halmstad Colloquium