The invention discloses an accelerometer fault monitoring method of an aircraft flight control system, and belongs to the field of accelerometer fault monitoring. According to the method, a mathematical model is built for an accelerometer fault, a residual error sequence is selected as a monitoring signal through model analysis, and whether the fault occurs or not is detected through comparison of the residual error sequence. According to the method, three faults of the accelerometer can be specifically monitored through a machine learning method of the support vector machine, whether the fault belongs to a constant gain fault, a constant deviation fault or a stuck fault can be judged at the first time when a fault signal appears, and the support vector machine is adopted to perform training learning on collected training set data; the processing capability of monitoring a large number of samples by the accelerometer fault is improved, and the fault monitoring accuracy of the accelerometer is improved.
本发明公开了一种飞机飞行控制系统的加速度计故障监测方法,属于加速度计故障监测领域。本发明通过对加速度计故障进行数学模型搭建,通过模型分析,选取残差序列作为监测信号,通过对残差序列的对比来检测故障是否发生。本发明通过支持向量机的机器学习方法,可以对加速度计的三种故障进行具体监测,可以在故障信号出现的第一时间判断该故障属于恒增益,恒偏差还是卡死故障,本发明采用支持向量机对采集的训练集数据进行训练学习,提高了加速度计故障监测大量样本的处理能力,提高了加速度计故障监测精确度。
Fault monitoring method for accelerometer of aircraft flight control system
一种飞机飞行控制系统的加速度计故障监测方法
2022-11-11
Patent
Elektronische Ressource
Chinesisch
IPC: | G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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