The invention discloses a real-time fault monitoring
Internet of Things system for a
chemical production equipment cluster, relates to the technical field of equipment fault monitoring control, and is used for solving the problem of poor fault monitoring precision of the
chemical production equipment cluster. Comprising a
data acquisition module, a comparative analysis module, an equipment abnormity determination module and a fault
trend prediction module. According to the method,
data integrity is ensured by collecting data of different frequencies in a layering manner, complementing and correcting abnormal values, a
baseline model is established, multi-dimensional features of normal states of equipment are extracted through an auto-
encoder, operation features are quantified through a
Gaussian mixture model, deviation judgment is achieved, an isolated forest and
principal component analysis are combined, and the accuracy of deviation judgment is improved. According to the method, an abnormal state is comprehensively judged according to the deviation degree, the isolated
score and the principal component deviation degree, an
alarm signal is generated, meanwhile, ARIMA and LSTM models are adopted for predicting short-term and long-term trends in a fused mode, a comprehensive predicted value is formed, control measures are automatically executed when the trends are abnormal, and the
operation safety of equipment is improved.