Qualitative diagnosis system and method

Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression

Reexamination Certificate

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C703S006000, C703S007000, C703S008000, C700S001000, C700S011000, C702S057000, C702S064000, C702S065000

Reexamination Certificate

active

10161096

ABSTRACT:
A system and method for predicting the behavior of a complex physical system with a qualitative analysis by correctly handling algebraic loops in physical system models for diagnosis applications. This approach recognizes the presence of negative feedback effects in loop structures and analyses these effects by tracking the entry point into the algebraic loop to resolve conflicting predictions.

REFERENCES:
DBLP Bibliography Server—Pieter J. Mosterman. http://www.informatik.uni-trier.de/˜ley/db/indicies/a-tree/m/Mosterman:Pieter—J=.html Printed on Sep. 2, 2005.
Mosterman, P.J. and G. Biswas. “Towards Procedures for Systematically Deriving Hybrid Models of Complex Systems.” Hybrid Systems: Computation and Control, 3rd Int'l Workshop (HSCC 2000). Mar. 23-25, 2000.
DBLP Bibliography Server—Hybrid Systems: Computation and Control, 3rd Int'l Workshop (HSCC 2000). Mar. 23-25, 2000. http://www.informatik.uni-trier.de/˜ley/db/conf/hybrid/hscc2000.html.
Manders, E.J., P.J. Mosterman, G. Biswas and L. Barford. “TRANSCEND: A System for Robust Monitoring and Diagnosis of Complex Engineering Systems.” Jan. 14, 1999. http://www.hpl.hp.com/techreports/1999/HPL-1999.37.ps.
Manders, E.J., G. Biswas, P.J. Mosterman and R.J. Barnett. “Signal Interpretation for Monitoring and Diagnosis, A Cooling System Testbed.” IEEE Transactions on Instrumentation and Measurement. vol. 49, No. 3, Jun. 2000, pp. 503-508.
Manders, E.J., G. Biswas, P.J. Mosterman, L. Barford, V. Ram, and R.J. Barnett. “Signal Interpretation for Monitoring and Diagnosis, A Cooling System Testbed.” Proc. of the 16th IEEE Instrumentation and Measurement Technology Conf. May 24-26, 1999, vol.
Mosterman, P.J. “Diagnosis of Physical Systems with Hybrid Models Using Parametrized Causality.” Hybrid Systems: Computation and Control, 4th Int'l Workshop (HSCC 2001). Mar. 28-30, 2001. Lecture Notes in Computer Science 2034 Springer 2001. pp. 447-450.
G. Biswas. “TRANSCEND: Diagnosis of Continuous Dynamic Systems from Transients.” Bridge Workshop, Mar. 2001. http://www.di.unito.it/˜dx01/bridge—material/biswas.pdf.
Mosterman, P.J. and G. Biswas. “Diagnosis of Continuous Valued Systems in Transient Operating Regions.” IEEE Transactions on Systems, Man, and Cybernetics—Part A. vol. 29, No. 6, Nov. 1999.
Mosterman, P. et al. “Qualitative Dlagnosis of Systems With Models That Include a Class of Algebraic Loops.” Mar. 17, 2000. http://moncs.cs.mcgill.ca/people/mosterman/patents/alp/p.pdf.
Mosterman, P. “4 The Temporal Causal Graph.” Jul. 15, 1997. http://msdl.cs.mcgill.ca/people/ mosterman/papers/lipn97
ode11.html.
IEEE Transactions on Instrumentation and Measurement. vol. 49, No. 3., Jun. 2000, pp. 503-508, “Signal Interpretation for Monitoring and Diagnosis, A Cooling System Testbed”.
“A Java Implementation of an Environment for Hybrid Modeling and Simulation of Physical Systems” Pieter J. Mosterman and Gautam Biswas. ICBGM '99, pp. 157-162. Jan. 1999.
“Hybrid Modeling and Verification of Embedded Control Systems” Pieter J. Mosterman, Gautam Biswas and Janos Sztipanovits. Proc. 7thIFAC CALSO '97. pp. 21-26. Apr. 28-30, 1997.
“Monitoring, Prediction, and Fault Isolation in Dynamic Physical Systems” Pieter J. Mosterman and Gautam Biswas. Proc. of AAAI-97, pp. 100-105. Jul. 1997.
“A Systematic Analysis of Measurement Selection Algorithms for Fault Isolation in Dynamic Systems” Sriram Narasimhan, Pieter J. Mosterman and Gautam Biswas. Proc. Int'l Workshop on Diagnosis Principles. Jun. 1998.
“Measurement Selection and Diagnosability of Complex Physical Systems” Pieter J. Mosterman, Gautam Biswas and Sriram Narasimhan, Eighth Int'l Workshop on Principles of Diagnosis. Sep. 1997.
“Qualitative Bond Graph Reasoning in Control Engineering—Part I: Qualitative Bond Graph Modelling and Controller Design” D.A. Linkens and H. Wang. ICBGM '95. pp. 183-188. Jan. 1995.
“Qualitative Bond Graph Reasoning In Control Engineering—Part II: Fault Diagnosis” D.A. Linkens and H. Wang. IGBGM '95. pp. 189-194. Jan. 1995.
“Monitoring of Systems Modelled by Bond-Graphs” M. Tagina, JP. Cassar, G. Dauphin-Tanguy, and M. Staroswiecki, ICBGM '95. pp. 275-282. Jan. 1995.
“Qualitative Dynamic Behavior of Physical System Models with Algebraic Loops” Peter J. Mosterman, Eric-J. Manders and Gautam Biswas. Eleventh Int'l Workshop on Principles of Diagnosis. Jun. 2000.
“Hybrid Dynamic Systems: A Hybrid Bond Graph Modeling Paradigm and Its Application in Diagnosis” Pieter J. Mosterman, 1997 Dissertation, Vanderbilt University, May 1997.

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