The invention discloses a power ship system fault diagnosis method, which relates to the technical field of ship fault diagnosis, and comprises a fault type construction module, an operation information processing module, a fault type diagnosis module, a power fault early warning module and a fault information feedback module, and the operation information processing module is used for processing the information to be diagnosed. According to the invention, the operation information processing module, the CEMD algorithm and the wavelet transform are arranged to decompose and reconstruct the operation state signal of the ship power system detected by the sensor, reduce or remove the interference signal in the detection signal, avoid the influence of the interference signal on the diagnosis result, enable the detection signal to be more accurate, improve the fault diagnosis accuracy, and improve the fault diagnosis efficiency. By intercepting the feature fragment signal in the detection signal, the feature fragment signal is diagnosed, so that the continuous long signal is prevented from being diagnosed integrally, and the diagnosis efficiency is improved.

    本发明公开了一种动力船舶系统故障诊断方法,涉及船舶故障诊断技术领域,包括故障类型构建模块、运行信息处理模块、故障类型诊断模块、动力故障预警模块和故障信息反馈模块,所述故障类型构建模块用于构建故障诊断模型,所述运行信息处理模块用于对待诊断的信息进行处理。本发明通过设置有运行信息处理模块,CEMD算法和小波变换对传感器检测的船舶动力系统运行状态信号进行分解与重构,减小或去除检测信号中的干扰信号,避免干扰信号对诊断结果造成影响,使检测信号更加准确,提高故障诊断准确性,通过截取检测信号中的特征片段信号,对特征片段信号进行诊断,避免对连续长信号整体进行诊断,提高诊断效率。


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    Title :

    Power ship system fault diagnosis method


    Additional title:

    一种动力船舶系统故障诊断方法


    Contributors:
    LUO NANHANG (author) / XIE DONGDONG (author) / WU YIFAN (author) / SONG SIMENG (author) / ZHAO KUNMING (author)

    Publication date :

    2024-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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