基于模型的传感器故障诊断技术的研究

Research on Model-based Fault Diagnosis Technology for Sensor

传感器故障诊断技术的研究对提高系统可靠性具有重要的意义，随着工程应用的需要，基于模型的诊断技术已经成为该领域极为活跃的研究方向．本文给出基于模型的传感器故障诊断技术的一般原理，并基于线性模型给出一类传感器故障诊断方法，可对多传感器故障进行精确定位，最后给出一个二阶系统的算例、本方法具有极大的工程实用价值．

Research on the sensor'S fault diagnosis technology is important to improve the reliability of system. Along with the need of engineering practicability, model-based diagnosis technology has become the very active direction in this field. The paper presents a general linear principle of the sensor's fault diagnosis technology, and give a way which can align accurately sensor's multi-fault. At the end, the paper give an example of secondorder system. It shows that this way has important value to engineering practicability.