Smart sensor system for diagnostic monitoring
July 24, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re31750 R-wave detector Method and apparatus for automatic abnormal events monitor in operating plants Spectrum analyzer using digital filters Data acquisition system Universal self-diagnosing appliance control Nuclear reactor safety system Device for testing digital circuits using built-in logic block observers (BILBO's) Real-time amplitude histogram shaper Sampling network analyzer with stored correction of gain errors Inventors
AssigneeApplicationNo. 386008 filed on 07/24/1989US Classes:702/183, Diagnostic analysis73/117.2, Disparate tests under operating conditions376/245, TESTING, SENSING, MEASURING, OR DETECTING A FISSION REACTOR CONDITION376/259, By particular instrumentation circuitry700/9Supervisory controlExaminersPrimary: Dixon, Joseph L.Attorney, Agent or FirmInternational ClassesG21C 017/00G05B 015/02 AbstractThe present invention is a component monitoring system which includes all sensor and plant component monitoring at distributed plant locations close to the sensors which are the source of the signals to be analyzed. Minimally preconditioned analog sensor signals are multiplexed and further conditioned by a sensor signal preprocessor that adjusts the gain and filters the sensor signals before being applied to an analog-to-digital converter controlled by a data acquisition computer. The analog sensor signals are converted into digital samples and stored in a data memory of a digital signal processor using a direct memory access technique. The data acquisition computer also controls the selection of sensors, gain, etc., based on commands from a controller. The digital signal processor, once sufficient sensor data has been collected, performs appropriate processing using known digital signal processing techniques. This processed data is then sent to the controller for analysis to determine plant component condition. The analysis and processing routines can be changed by downloading a new routine from the controller. Once a sensor signal is processed, the controller selects the next sensor by transmitting an appropriate command to the data acquisition computer.Field of SearchPOWER PLANT OR UNIT EFFICIENCYDisparate tests under operating conditions Plural sensors at single location (e.g., diverse orientation, plural level) With particular system function (e.g., temperature compensation, calibration) WITH CONTROL OF REACTOR (E.G., CONTROL OF COOLANT FLOW) Plural sensed different conditions or measured variables correlated Control programs TESTING, SENSING, MEASURING, OR DETECTING A FISSION REACTOR CONDITION By particular instrumentation circuitry | |
