2023-02-15T00:00:00.000Z

2023-02-15

Paper 01: Mechanical fault diagnosis and prediction in IoT based on multi-source sensing data fusion

huangMechanicalFaultDiagnosis2020 link DOI

Keywords: data-fusion, multi-sensor, fault-detection

Data Fusion Model

Data fusion model:

• JDL model,
• Boyd’s OODA (Observe-Orient-Decide-Act) Loop model,
• Intelligence Cycle model,
• the Omnibus model,
• State Transition Data Fusion (STDF) model,
• Hierarchical model
• Dasarathy model,
• Waterfall model,
• Hybrid model.

Data Fusion Algorithm

• simple processing algorithms
  • the weighted average method (weighting the average data acquired by the same type of sensors in continuous time series according to the chronological order, yielding the final fusion value).
• probability-based algorithms,
  • Bayesian theory
    • Bayesian networks
    • naive Bayes
    • non-naive Bayes
    • Bayesian inference
  • D-S evidence theory.
    • preprocessing the original evidence
    • improvement of combination rules
    • combination of other algorithms
• fuzzy logic-based algorithms,
  • fuzzy logic algorithm
    • fuzzy logic reasoning,
    • fuzzy clustering algorithm
    • intuitionistic fuzzy set
    • a combination of other algorithms
  • fuzzy set
  • rough set: attribute reduction and noise removal
• artificial intelligence algorithms
  • neural networks
    • Back-Propagation Neural Network (BPNN)
    • Radial Basis Function Neural Network (RBFNN)
    • Elman Neural Network (ENN)
  • Support Vector Machine (SVM) for small number of samples
  • deep learning.
    • Convolutional Neural Network (CNN)
    • Deep Belief Network (DBN)
    • Deep Neural Network (DNN)
• other algorithms.
  • ant colony algorithm
  • genetic algorithm
  • Kalman filtering

Fusion strategies

• select a reasonable data preprocessing method
• select a reasonable neural network model, and use a heuristic algorithm to optimize the network model.

Paper 02: Hierarchical attention graph convolutional network to fuse multi-sensor signals for remaining useful life prediction

liHierarchicalAttentionGraph2021 link DOI
Keywords: multi-sensor, RUL, graph