A Sensor Value Validation Technique taking account of the Error Propagation among the Sensor Values in Causal Relation

인과관계내에서 계측값들의 오차파급을 고려한 계측값 검증 기법에 관한 연구

This paper presents an algorithmic sensor value validation technique that can systematically explore the embedded sensor redundancies in complex physical systems and maximize their utilization in validating sensor values. The confidency criteria are developed for checking the consistency of sensor relationships called Causal Relations. Development results are applied to a tubular type supercritical pressure type thermal power plant with rated operational data to demonstrate the effectiveness of the proposed technique.