Integration of ICAM with WINTeR A schematic diagram for the integration of the ICAM Nonlinear Dynamic Data Reconciliation (NDDR) Agent, Linearized Model Identification (LMId) Agent and Fault Detection, Isolation and Accommodation (FDIA) Agent is shown in Figure 1.  Important aspects of this new integration project are as follows: The "Process simulator" for the initial integration effort will be either a nonlinear jacketed continuous stirred-tank reactor (JCSTR) or the Pilot Plant Simulator (PPS) Agent; however, the goal is to allow any process, real or simulated, to be interfaced with WINTeR and ICAM agents. An operator (experimenter) will be able to enter set points for the process in normal operation; when the LMId Agent is invoked it will take over and supply low-pass generalized binary noise (GBN) signals, to excite the process dynamics sufficiently for successful model identification. The WSN will provide sensor data to the data interface layer, to be passed to the NDDR Agent for conditioning, i.e., data drop-outs and outliers replaced by interpolation, noise levels reduced and signals made consistent with respect to material and energy balance ("reconciled"). Once a linearized model has been obtained it is passed to ICAM and the FDIA Agent, and FDIA operation can begin. Capability to model sensor and actuator faults is built into the PPS Agent, so FDIA performance can be readily studied in an environment in which a WSN paths are included in the control loops.  Specifically, we illustrate how one sensor output is conveyed to the controller via path 1 - 2 - 3 - 4 - 5 - 6 in the schematic, and the controller output (process actuator input) passes through the path 7 - 8 - 9 - 10 -11 -12. Our CBU partners are working with us on the interfaces, with an objective of being able to simulate WSN node failures and reconfiguration, so the UNB Wireless Networked Control Systems Coordination (WNCSC) Agent can be tested and demonstrated in a more realistic environment. The Steady-state / Transient Determination (SSTD) Agent (not shown) will also be incorporated, in order to support the operations of the WNCSC and FDIA Agents. Figure 1.  Integration of LMId and FDIA Agents with WINTeR The integration of ICAM agents with WINTeR is being done by Dr. Maira Omana and Ms. Pilar Moreno.  This part of the UNB PAWS effort was begun in January 2010.  The ability to test ICAM agents in operation with other industrial processes represents a major potential benefit to our joint R&D efforts in the future.  This effort is a precursor to a new project being proposed as an ICAM follow-on, called CECAM: Cognitive Executive Control and Asset Management. Return to the UNB PAWS Home Page Information supplied by: Jim Taylor Last update: 29 August 2010 Email requests for further information to: Jim Taylor (jtaylor@unb.ca)