SOUMELIDIS, Alexandros
Degrees
- Diploma in Electrical Engineering (equiv. to M. Sc.) Faculty
of Electrical and Electronic Engineering, Technical University
of Budapest, 1979
- Ph.D. in Technical Engineering Science from the Technical University
of Budapest, 2002
Occupation
Research: Senior Research Fellow at Systems
and Control Laboratory, Research Division of Computer and Automation
Institute
R&D: Project Manager
Studies
- Gradual studies in electrical engineering with specialization
in Measurement and Control, Faculty of Electrical and Electronic
Engineering, Technical University of Budapest, 1974-79
- Postgradual studies in Measurement and Instrumentation, Department
of Instrumentation and Measurement, Technical University of Budapest,
1979-82
Carrier
- Developing engineer at MEDICOR Works, Budapest, Hungary, 1982-84
(activities: microprocessor based system design, computer tomography).
- Research fellow at the Computer and Automation Research Institute,
as assistant of Prof. J. Hatvany, 1984-87 (activities: modeling
of manufacturing processes).
- Research fellow at the Computer and Automation Research Institute,
Control Theory Group - later Systems and Control Laboratory, 1987
- 2002 (activities: System diagnostics, signal processing methods
for failure detection, knowledge based methods for diagnostics,
applications in nuclear reactors (NPP Paks), until cc. 1997).
- Senior research fellow at the Computer and Automation Research
Institute, Systems and Control Laboratory, 2002 - today (activities:
Signals and systems theory, signal processing, diagnostic and
control system design, industrial, biomedical applications).
Research
Advanced signal processing methods
Signal processing aims at achieving condensed
information on signals acquired from systems for decision making
in system identification, control design, as well as in change and
failure detection. The effective detection of several phenomena
of specific signal characteristics requires certain a priori knowledge
on the signals and systems. The signal representation in non-canonical
bases offers this feature, i.e. the detection methods built upon
the approximation of signals in an appropriate basis can result
in high sensitivity and high selectivity.
The goals of our research activity are to elaborate
methods, using nonstandard orthogonal basis functions, e.g. the
Laguerre and Kautz systems and their generalizations, as well as
wavelet-type constructions for signal representation and detection
of specific signal phenomena. Specific detection algorithms are
intended to be realized for industrial cases, such as for the loose
part monitoring in nuclear power plants, startup and shutdown processes,
as well as for transients of technological systems, etc.
The above representations with non-canonical bases
and wavelets correspond to recent activities to achieve approximations
in L( and H( norm that recently have emerged in the field of identification
for robust control; and are in strong connection with the widely
examined joint time-frequency descriptions.
Development projects
Test systems for the Reactor Protection System
in the NPP Paks
As a part of the participation of the System and
Control Laboratory in the Refurbishment Project of the Reactor Protection
System (RPS) at Paks, several systems has been developed to support
the testing the RPS system. Characteristic parts of this development
are as follow:
- Interface system (computer and PLC) between the Training Simulator
and the Representative Configuration (RC) of the RPS, supporting
also autonomous testing capabilities.
- Interface system (computer and PLC) between the Training Simulator
and the Safety Monitoring System (as a part of the Representative
Configuration).
- Startup Test Machine - a portable test equipment to support
the startup procedures of the Reactor Protection Systems on the
operating reactor units.
- Periodic Test Machine - a portable test equipment to realize
periodic system tests on the operating reactor units.
A new unified test concept has been elaborated,
and the development of the Unified Test System (UTS) has begun in
the year 2000. This system will realize a distributed solution to
support both the startup and periodic test activities within the
RPS system. The realization is based upon a combination of central
test units (computers) with micro-controller based "smart"
test equipments interconnected by industrial networks. A. Soumelidis participate in these activities a the Project
Leader.
Participation in Integrated Vehicle Control
System Project
Within the general activities of other members
of the Systems and Control Laboratory for the development of Integrated
Vehicle Control System A. Soumelidis deals with the instrumentation,
data acquisition, signal processing, and detection issues emerged.
Within this framework the following fields are studied:
- Sensors, sensor systems, "smart sensors", distributed
sensing systems, data acquisition solutions applicable in vehicles.
- Microcomputer based control, interconnection networks, satisfaction
of real-time requirements.
- Vision and motion-type systems, "vision-in-loop" control
solutions.
A laboratory equipment has established with the
support of the National Bureau of Technical Development of the Ministry
of Education, which is suitable to perform measurement an control
experiments in connection with the above mentioned and future tasks,
including vision an motion control elements besides the conventional
data acquisition equipment.
Educational projects
Control experiments for supporting research
and education
Beyond the Inverted Pendulum (IP) experiment ---
which has already been involved in the control education and testing
several control algorithms --- other control experiments are designed
on the basis of vision and motion control. Furthermore the realization
of real-time and network-based distributed control is studied and
tested on the basis of embedded real-time hardware, real-time operational
systems, and real-time extensions for conventional operational systems.
Teaching activities
Honorary associate professor at the Faculty of
Transportation Engineering, Technical University of Budapest since
2003.
Lectures and practicals in gradual and postgradual level at the
Faculty of Transportation Engineering, Technical University of Budapest
in the fields of measurement and instrumentation, signal processing,
and control in vehicle systems.
Membership
Member in - the Scientific Society of Measurement
and Automation (MATE), Hungary, since 1980.
Member in - the Institute of Electrical and Electronic
Engineering (IEEE), Signal Processing and Control Systems Society,
since 1998; Instrumentation and Measurement Society, since 2003.
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Selected publications
- A. Soumelidis, I. Nagy, J. Bokor, I. Piacsek, Tudásreprezentáció
és következtetés szerkezet és viselkedés
alapján: alkalmazás reaktor-zajdiagnosztikai rendszerben
AUTOMATIZÁLÁS'89 Konferencia elõadásai
(Székesfehérvár, Magyarország), I.
kötet, 1989, 165-175.
- Soumelidis, I. Nagy, K. Kiss and I. Piacsek, Knowledge representation
and diagnostical inference in PWRa using structural and functional
information, Proc. Of IAEA Specialists’ Meeting on “Early Failure
Detection and Diagnosis in Nuclear Power Plants – Systems and
Operational Experience” (Dresden, GDR), 1989, pp. 284-294.
- A. Soumelidis, I. Nagy, J. Bokor, I. Piacsek, Tudásreprezentáció
és következtetés szerkezet és viselkedés
alapján: alkalmazás reaktor-zajdiagnosztikai rendszerben,
Mérés és Automatika, 38, 1990, 1. szám,
12-16.
- A. Soumelidis and I. Nagy, Intelligent modelling of complex
physical systems: application in diagnostics of NPPs, Proc. of
the 11th IFAC World Congress (Tallin, USSR), vol. 7, 1990, pp.
13-17.
- Soumelidis and A. Edelmayer, Modelling of complex systems for
control and fault diagnostics: a knowledge based approach, Engineering
Systems with Intelligence. Concepts, Tools and Applications, pp.
125-132, Kluwer Academic Publ., Amsterdam, Holland, 1991, EURISCON'91,
Corfu, Greece, 1991, ed. S. Tzafestas.
- J. Bokor, A. Edelmayer, A. Soumelidis, M. Tanyi, and P. Gáspár,
Knowledge-based noise analysis: a promising tool for early failure
detection in nuclear power plants, Preprints of the IFAC/IMACS-Symposium
on Fault Detection, Supervision and Safety for Technical processes
(Baden-Baden, Germany), 1991, SAFEPROCESS'91, pp. 73-80.
- A. Edelmayer and A. Soumelidis, TELEMACH: A functional approach
to face problem solving in knowledge-based signal processing systems,
Prepr. of 9th IFAC/IFORS Symposium on Identification and System
Parameter Estimation (Budapest, Hungary), 1991, pp. 248-253.
- I. Nagy, A. Soumelidis, and J. Bokor, Knowledge representation
and inference in noise diagnostic expert systems, Symposium on
Nuclear Reactor Surveillance and Diagnostics (Gatlinburg, Tennessee),
1991, SMORN VI, pp. 62.02-62.12.
- A. Soumelidis, Cs. Bányász, L. Keviczky, and I.
Vajk, On the use of virtual instruments in realizing adaptive
controllers, 2nd IFAC Symposium on Intelligent Components and
Instruments for Control Applications (Budapest, Hungary), 1994,
SICICA'94, pp. 246-251.
- I. Vajk, A. Soumelidis, Cs. Bányász, and L. Keviczky,
Adaptive controllers as virtual instruments, Proceedings of the
1st IFAC Conference on System Identification (Budapest, Hungary),
1994, SYSID'94, pp. 291-296.
- A. Soumelidis, J. Bokor, L. Keviczky, A. Edelmayer, P. Gáspár,
Zs. Csáki, and E. Varga, Toward an intelligent evolutionary
signal processing based failure monitoring and diagnostic system
for complex plants , Proc. of 2nd IFAC Symposium on Fault Detection
Supervision and Safety for Technical Processes (Espoo, Finland),
1994, SAFEPROCESS'94, pp. 760-765.
- A. Soumelidis, J. Bokor, P. Gáspár, and T.T. Hai,
Virtual instrument tools for signal processing and system identification
based failure detection in complex plants, Proc. Of the National
Instruments European User Symposium (Munich, Germany), 1994, pp.
153-159.
- J. Kiss, A. Soumelidis, and J. Bokor, Applying artificial neural
networks in nuclear power plant diagnostics , Symposium on Nuclear
Reactor Surveillance and Diagnostics SMORN VII (Avignon, France),
vol. 1, 1995, 323-331.
- J. Kiss, J. Bokor, A. Edelmayer, and A. Soumelidis, An open
system approach to change detection and failure monitoring of
complex plants: the NPP experience, Symposium on Nuclear Reactor
Surveillance and Diagnostics SMORN VII (Avignon, France), vol.
1, 1995, pp. 590-598.
- A. Soumelidis and J. Bokor, Applying joint time-frequency methods
in the failure detection of time-varying systems, Proceedings
of AUTOMATIZÁLÁS'95 Conference (Budapest, Hungary),
vol. I, 1995, pp. 221-230.
- A. Soumelidis, J. Bokor, P. Gáspár, and A. Edelmayer,
A user-friendly environment for designing signal processing based
failure monitoring in nuclear power plant , Proceedings of AUTOMATIZÁLÁS'95
Conference (Budapest, Hungary), vol. II, 1995, pp. 573-582.
- A. Soumelidis, Applications of wavelets in vehicle dynamics,
Proceedings of the 5th Mini Conference On Vehicle Dynamics, Identification
and Anomalies (Budapest, Hungary), 1996, VSDIA'96, pp. 537-546.
- A. Soumelidis, J. Bokor, P. Gáspár, and T.T. Hai,
Virtual instrument tools for signal processing and system identification
based failure detection in complex plants, Chemical Engineering
World XXXI (1996), no. 7, 49-52.
- A. Soumelidis, J. Bokor, and F. Schipp, Representation and approximation
of signals and systems using generalized Kautz functions, Proc.
of the 36th Conference on Decision and Control (San Diego, CA),
1997, CDC'97, pp. 3793-3796.
- A. Soumelidis, P. Gáspár, and J. Bokor, Inverted
pendulum: an environment for intelligent control design and tests,
3rd IFAC Symposium on Intelligent Components and Instruments for
Control Applications (Annecy, France), 1997, SICICA'97, pp. 421-425.
- A. Soumelidis, P. Gáspár, and J. Bokor, An inverted
pendulum tool for teaching linear optimal and model based control,
Periodica Polytechnica Ser. Transportation Engineering, 25 (1997),
no. 1-2, 9-19.
- A. Soumelidis, G. Kovács, J. Bokor, P. Gáspár,
L. Palkovics, and L. Gianone, Automatic detection of the lane
departure of vehicles, 8th IFAC Symposium on Transportation Systems
(Chania, Greece), 1997, pp. 1096-1101.
- A. Soumelidis, I. Nagy, and J. Bokor, Analyzing time-varying
and transient vibration properties in technological systems, 5th
International Congress on Sound and Vibration (Adelaide, Australia),
1997, pp. 2071-2078.
- A. Soumelidis, P. Gáspár, and J. Bokor, Educational
application of inverted pendulum experiment: optimal and model-based
control, MÉRÉS-AUTOMATIZÁLÁS’98 Konferencia
az “Alkalmazott Informatika” jegyében, (Budapest, Magyarország),
1998, 221-231.
- A. Soumelidis, Z. Szabó, and J. Bokor, Fault detection
in lightly damped systems using rational orthonormal functions,
Proc. of 4th IFAC Symposium on Fault Detection Supervision and
Safety for Technical Processes (Budapest, Hungary), June 2000,
pp. 548-553.
- A. Soumelidis, M. Papp, F. Schipp, and J. Bokor, Frequency domain
identification of partial fraction models, Proceedings of the15th
IFAC World Congress (Barcelona, Spain), 2002, on CD.
- A. Soumelidis, F. Schipp, and J. Bokor, Frequency domain representation
of signals in rational orthogonal bases, submitted to Mediterranean
Control Conference (Lissabon, Portugal), 2002, MED'2002, on CD.
- J. Németh, B. Erdélyi, B. Csákány,
P. Gáspár, A. Soumelidis, F. Kahlesz,and Zs Lang,
High-Speed Videotopographic Measurement of Tear Film Build-up
Time, Investigative Ophthalmology & Visual Science, vol. 43,
no. 6, pp. 1783 -1790, 2002
- A. Soumelidis, J. Bokor and F. Schipp,, Detection of changes
on signals and systems based upon representations in orthogonal
rational bases, Proc. of 5th IFAC Symposium on Fault Detection
Supervision and Safety for Technical Processes (Washington DC,
USA), June 2003, on CD.
- A. Soumelidis, F. Schipp, and J. Bokor, Applying orthogonal
rational signal representations in system change detection, Mediterranean
Control Conference (Rhodes, Greece), June 2003, MED'2003, on CD.
- Varga, T. Bartha and A. Soumelidis , B. Katics. A concept for
on-line testing of distributed safety-critical supervisory systems.
IMS 2003, 7th IFAC Workshop on Intelligent Manufacturing Systems,
6-8 April, 2003, Budapest, Hungary
- Varga, T. Bartha and A. Soumelidis, On-line Testing of the Reactor
Protection System in the Paks Nuclear Power Plant, European Research
Consortium for Informatics and Mathematics (ERCIM), ERCIM News
No. 56, January 2004.
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