Techniques for Sensor-Based Diagnosis.
CARNEGIE-MELLON UNIV PITTSBURGH PA ROBOTICS INST
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This paper describes a system called PDS, a forward chaining, rule-based architecture designed for the online, realtime diagnosis of machine processes. Two issues arise in the application of expert systems to the analysis of sensor-based data spurious readings and sensor degradation. PDS implements techniques called retrospective analysis and meta-diagnosis as solutions to these problems. These techniques and our experiences in knowledge acquisition in a large organization, and the implementation of PDS as a portable diagnostic tool are described. Author
- Computer Hardware
- Test Facilities, Equipment and Methods