Proceedings of the 6th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2023: Safety ... Notes in Electrical Engineering, 1136)

This book reflects the latest research trends, methods, and experimental results in the field of electrical and information technologies for rail transportation, which covers abundant state-of-the-art research theories and ideas. As a vital field of research that is highly relevant to current developments in a number of technological domains, the subjects it covered include intelligent computing, information processing, communication technology, automatic control, etc. The objective of the proceedings is to provide a major interdisciplinary forum for researchers, engineers, academicians, and industrial professionals to present the most innovative research and development in the field of rail transportation electrical and information technologies. Engineers and researchers in academia, industry, and government will also explore an insightful view of the solutions that combine ideas from multiple disciplines in this field. The volumes serve as an excellent reference work for researchersand graduate students working on rail transportation and electrical and information technologies. Contents Research on Interactive Harmonic Impedance Measurement and Control Technology for Traction Network Based on Embedded System 1 Introduction 2 Principle of Traction Network Impedance Frequency Characteristic Test Device 3 Principle of Harmonic Impedance Measurement and Control Technology for Traction Network 3.1 Architecture and Principles 3.2 Hardware Architecture and Principle of Embedded System 3.3 Architecture and Principle of Supporting Software for Measurement and Control Technology 4 Algorithms for Harmonic Impedance Testing System 5 Conclusion References Analysis of External Environmental Operating Risk Factors for Overhead Contact System 1 Introduction 2 Analysis of Factors Affecting Lightning Strike Trip 2.1 Geographical and Temporal Variability 2.2 Lightning Current and Lightning Current Impulse 2.3 Distance Between Lightning Strike and OCS 2.4 Ground Flash Density 3 Analysis of Factors Affecting Floating Object Intrusion of OCS 3.1 Temporal and Spatial Variability Characteristics and Convective Intensity 3.2 Angle Between Wind Direction and Contact Network Route 4 Analysis of Factors Influencing Insulator Flashover Caused by Fog-Haze 4.1 Air Quality Index and Concentration of Suspended Particulate Matter 4.2 Temperature and Humidity 4.3 Wind Speed 5 Conclusion References Electromagnetic Influence of Linear Eddy Current Braking on Track Circuit 1 Introduction 2 Principle and Modeling of LECB 2.1 Principle of LECB 2.2 Magnetic Field of LECB 2.3 Modeling of LECB 3 Principle and Modeling of Track Circuit 3.1 Principle of Track Circuit 3.2 Modeling of Track Circuit 4 Co-simulation of LECB and Track Circuit 5 Conclusion References Fault Diagnosis of Electro-Hydraulic Switch Machine Based on IGWO-LSTM 1 Introduction 1.1 Working Principle of ZYJ7 Electro-Hydraulic Switch Machine 1.2 ZYJ7 Electro-Hydraulic Switch Machine Failure Types 2 Feature Extraction 3 Fault Diagnosis Algorithm 3.1 Fault Diagnosis Model 3.2 IGWO Algorithm 3.3 Long Short-Term Memory Neural Network (LSTM) 4 Simulation Analysis 5 Conclusion References A Maintenance Management Mode Decision Method for Metro Engineering Vehicles Based on Set-Valued Statistics and TOPSIS 1 Introduction 2 The Proposed Decision-Making Method 2.1 Decision Indicator System Construction 2.2 Decision Model Based on Set-Valued Statistics and TOPSIS 3 Example Analyses 4 Conclusion References Reliability of Pantograph Systems in the High-Speed Train: A Literature Review 1 Introduction 2 Literature Search Method 3 Pantograph Reliability Definition and Index 3.1 Pantograph Reliability Definition and Related Concepts 3.2 Reliability Index 4 Models/Methods Used for Pantograph Reliability Analysis 4.1 Finite Element Analysis 4.2 Numerical Simulation 4.3 Neural Networks and Machine Learning 4.4 Fault Tree Analysis 4.5 Fatigue Reliability Analysis 4.6 Aerodynamic Characteristics 4.7 Other Models and Methods 4.8 Limitations of the Current Models 5 A Comprehensive Pantograph Evaluation 5.1 Defining the Assessment Hierarchy 5.2 Construction of Judgment Matrix 5.3 Consistency Judgment 5.4 Calculate the Integrated Evaluation Value 5.5 Analysis of Evaluation Results 6 Conclusion References Virtual Reality Interaction System for Rail Transit Emergency Response 1 Introduction 2 Overview of the Virtual Reality-Assisted System for Emergency Rescue in Rail Transportation 2.1 Field Situation Awareness System Based on Multi-source Information Fusion 2.2 Emergency Dispatch Instruction Receiving System 2.3 Human-Machine Interaction System for Virtual Reality Terminal Devices 3 Implementation Method of Human-Computer Interaction System for Virtual Reality Terminal Devices 3.1 Introduction to the Mediapipe Model 3.2 Gesture Recognition for Implementing Virtual Mouse Function 3.3 Virtual Keyboard Input Module 3.4 Gesture Recognition for Media Volume Control 3.5 Test Platform Hardware and Software Composition 4 Conclusion References Modeling Pedestrian Group Behavior in Crowd Evacuations 1 Introduction 2 Methodology 2.1 Group Division 2.2 ISFM 3 Results 3.1 Crowd Evacuation After Clustering Grouping 3.2 Model Evaluation 4 Conclusions References Pattern Recognition of Partial Discharge Type of Typical Defects in 10 kV Cable Joints of High-Speed Railway 1 Introduction 2 Obtaining Partial Discharge Spectra of Discharge Models 2.1 Four Typical Discharge Types Models 2.2 Construction of a Typical Discharge Model Test Platform 2.3 Construction of a Typical Discharge Model Test Platform 3 Number of Discharge Feature Extraction and Recognition of Partial Discharge 3.1 Feature Extraction of Partial Discharge Spectrum 3.2 Statistical Characteristic Parameters 3.3 Statistical Characteristic Parameters 3.4 Partial Discharge Pattern Recognition 3.5 Pattern Recognition of Discharge Types Based on BPNN 3.6 Discharge Type Pattern Recognition Based on Support Vector Machine 4 Identification of Typical Defect Discharge Types in Cable Joints 4.1 Intermediate Joint Defect Sample 4.2 Obtaining Discharge Spectra of Joint Defect Models 4.3 Identification of Typical Defect Discharge Types Based on Multiple Feature Combination 5 Conclusion References Reliability Analysis of Insulators for Overhead Contact System Based on Mechanical Tensile Failure 1 Introduction 2 Reliability Evaluation Methods 2.1 Safety Margin 2.2 Stress-Strength Interference 3 Experiment 3.1 Materials 3.2 Experiment Process 3.3 Experiment Results 4 Reliability Evaluation 4.1 Strength Distribution 4.2 Stress Distribution 4.3 Reliability Evaluation 5 Conclusion References Research on Speed Regulation Performance Optimization of Permanent Magnet Synchronous Motor Based on SVPWM 1 Introduction 2 Mathematical Model of Permanent Magnet Synchronous Motor in Two-Phase Synchronous Rotating Coordinate System (dq Axis) 3 Vector Control Principle Design 3.1 Vector Control Principle Design 3.2 SVPWM Control Principle 4 Simulation Analysis 5 Conclusions References Power Loss Calculation Method of Intermediate 60° SPWM Modulation in Two-Level Inverter 1 Introduction 2 Power Loss Model of Two Level Inverter IGBT Device 2.1 Two-Level Inverter Topology 2.2 IGBT Device Power Loss Model 3 Power Loss Calculation of Intermediate 60° SPWM Modulation 3.1 Conduction Characteristics of Intermediate 60° SPWM Modulation 3.2 On-State Loss in Intermediate 60° Modulation 3.3 Switching Loss in Intermediate 60° Modulation 4 Test Verification 5 Conclusion Appendix References Research on Fault Diagnosis for Output Voltage Sensors of Parallel Auxiliary Converter of EMUs 1 Introduction 2 Auxiliary Converter and Time Sequences 3 Fault Diagnosis of Output Voltage Sensor 4 Test Verification 5 Conclusion References Leveraging UAVs for Rapid and Hierarchical Railway Intrusion Detection 1 Introduction 2 Methodology 2.1 Real-Time Railway Segmentation 2.2 Hierarchical Railway Area Division 2.3 Area-Matched Intrusion Detection 3 Experiments 3.1 Data Acquisition and Datasets 3.2 Distance-Based Area Division and Object Detection 3.3 Hierarchical Railway Intrusion Detection 4 Conclusion References Research on the Method of Extracting Safety Constraints from On-Board ATP Operation Data Based on CNN 1 Introduction 2 Convolutional Neural Network 2.1 Basic Concepts 2.2 Principle of Data Feature Extraction 3 Method for Extracting Security Constraints from Running Data 3.1 Analysis of On-Board ATP System 3.2 Operation Data Processing and Modeling 3.3 Security Constraint Extraction Based on CNN 4 Conclusion References Integrated Optimization for Train Rescheduling and Rolling Stock Circulation with Passenger Demand Under Disruptions of Metro Line 1 Introduction 2 Literature Review 2.1 Train Timetable Rescheduling 2.2 Operational Issues with Passenger Demands 3 Mathematical Modelling 3.1 Problem Description 3.2 Constraints 3.3 Objective Function 4 Case Study 4.1 Description of the Case 4.2 Computational Results 5 Conclusions References Research on the Construction of Leakage Water Knowledge Graph for Urban Rail Transit Operation Tunnels 1 Introduction 2 Analysis of Key Factors Influencing Tunnel Leakage Water 3 Construction of Knowledge Graph for Leakage Water in Urban Rail Transit Operation Tunnels 3.1 Modeling of Leakage Water Body 3.2 Concept Extraction of Leakage Water 3.3 Construction of Leakage Water Ontology Relationship 3.4 Knowledge Storage and Visualization Based on Neo4j 4 Analysis of Water Leakage Accidents Based on Knowledge Graph 4.1 Accident Portrait 4.2 Accident Classification 4.3 Statistic Analysis 4.4 Association Analysis 5 Conclusion References Automatic Generation of Pantograph Image Caption Based on Deep Learning 1 Introduction 2 PantoCap Structure 2.1 Pantograph Image Feature Encoding Module 2.2 Pantograph Image Feature Decoding Module 3 Experiment Validation and Result Comparison 3.1 Experiment Dataset 3.2 Experimental Parameters 3.3 Evaluation Metrics 3.4 Result Analysis 4 Conclusion References Simulation and Analysis of the Impact of EMI from Urban Railway Traction System on Axle Counter 1 Introduction 2 Axle Counter Principle and Interference Sources Analysis 2.1 Working Principle of Axle Counter 2.2 Interference Source Analysis 2.3 Simulation Analysis of Interference Sources 3 Calculation Method of Cable Inductive Coupling 3.1 Structure and Parameters of Typical Axle Counter Cable 3.2 Theoretical Calculation of Induced Voltage 4 Case Analysis 5 Conclusion References Detecting Anomalies in Traction Motor Bearing Using Multi-scale Segmented Autoregressive Network 1 Introduction 2 Related Work 3 MSSAN 3.1 Overall Architecture 3.2 Multi-scale TCN 3.3 LSTMCell 3.4 Fusion Module 3.5 Multi-class Classifier 4 Experiments 4.1 Dataset 4.2 Settings 4.3 Results 5 Conclusion References Research on Switch Machine Fault Diagnosis Based on Wavelet Transform and CNN-LSTM 1 Introduction 2 Power Curve of Switch Machine Action and Analysis of Common Failure Causes 3 Data Preprocessing 3.1 Fault Power Data Enhancement Based on Oversampling Algorithm 3.2 Haar Wavelet Transform of Power Data 4 Switch Machine Fault Diagnosis Algorithm Based on CNN-LSTM 4.1 Overall Algorithm Design 4.2 Power Data Feature Extraction 4.3 Long Short-Term Memory Network Algorithm 4.4 CNN-LSTM Model Construction 5 Analysis of Experimental Simulation Results 6 Conclusion References Reliability Analysis of CTCS-3 Security Services Based on 5G-R Using Timed Colored Petri Nets 1 Introduction 2 CTCS-3 Vehicle-Ground Communication System Based on 5G-R 3 CPN Model of CTCS-3 Vehicle-Ground Communication System 3.1 CPN Top Model of CTCS-3 Vehicle-Ground Communication System 3.2 5G-R Wireless Communication Channel Sub-model 3.3 Channel State Sub-model 4 System Performance Analysis 4.1 Simulation Environment 4.2 Reliability Analysis of CTCS-3 5G-R Wireless Channel 5 Conclusion References A Review of Research into the Standardization of High-Speed Railway Text Operation and Maintenance Data 1 Introduction 2 Characterization of High-Speed Railroad Text Data 2.1 Data Source and Introduction 2.2 Text Data Features 3 Research on Data Standardization Based on Text Data Mining Technology 3.1 Text Preprocessing 3.2 Text Mining 4 Risk Information Management Platform 5 Summary and Prospect References Strain Prediction Analysis of Bridge Structure Based on Improved EHO-LSTM Neural Network Model 1 Basic Theory 1.1 Long Short-Term Memory (LSTM) Neural Network 1.2 LSTM Recurrent Neural Network Training and Prediction Process 1.3 Chaotic Elephant Herd Algorithm 2 Improved EHO-LSTM Recurrent Neural Network Forecasting Model 2.1 Improved EHO Algorithm 2.2 Improved EHO-LSTM Prediction Model 2.3 Implementation Steps of Improved EHO-LSTM Prediction Model 3 Compare Models 3.1 RNN Model 3.2 SSA Model 3.3 ARIMA Model 4 Case Studies 4.1 Engineering Background 4.2 Selection and Processing of Strain Data 4.3 Model Effect Evaluation Index 4.4 Analysis of Model Prediction Results 5 Conclusion References A Kind of Fail-Operational Realization Method Based on Active STPA 1 Introduction 2 System Risk Identification Method 3 Introduction to Active STPA Method 4 Case Analysis 4.1 Case Selection 4.2 Analysis Process 5 Conclusion References Dry-Type Transformer Fault Warning Based on Infrared Thermal Images 1 Introduction 2 Analysis of Typical Overheating Faults in Dry-Type Transformer 3 Overheating Warning Method Based on Infrared Images 3.1 Fault Recognition Based on AlexNet 3.2 Fault Recognition Based on Improved AlexNet 4 Experimental Validation 4.1 Fault Experiment Platform 4.2 Recognition Results of the Original AlexNet 4.3 Recognition Results of the Improved AlexNet 5 Conclusions References Dry-Type Transformers Fault Diagnosis Method Based on Signal Wavelet Transform and DBN 1 Introduction 2 Principles of Wavelet Transform-Based Signal Decomposition and Reconstruction Techniques 2.1 Principle of Wavelet Transform 2.2 Decomposition and Reconstruction of Signals 3 Feature Extraction of Vibration Signals 3.1 Time Domain Feature Extraction 3.2 Frequency Domain Feature Extraction 4 Transformer Fault Diagnosis Based on Deep Confidence Network 4.1 Principle of DBN 4.2 Fault Diagnosis Results 5 Conclusion References Reduced-Order Modeling of Traction Transformer Considering Coupling of Electric-Thermal-Fluid Multi-physical Domains 1 Introduction 2 Modeling the Temperature Field of Traction Transformer Based on Electric-Thermal-Fluid Coupling 2.1 Transformer Heat Transmission Equivalent Model 2.2 Transformer Electric-Thermal-Fluid Coupling Model 3 Reduced-Order Method of Traction Transformer Temperature Field Based on Electric-Thermal-Fluid Coupling 3.1 Principle of Model Order Reduction 3.2 Reduced-Order of Transformer Electric-Thermal-Fluid Coupling Model 4 Instance Verification 4.1 Establishment of a Transformer Model 4.2 Full-Order Model Simulation Analysis 4.3 Reduced-Order Model Simulation Analysis 5 Conclusion References Risk Assessment Model for Urban Rail Transit System Based on Bayesian Network-ISM 1 Introduction 2 Methodology 2.1 Constructing Index System 2.2 ISM Constructs the Logical Relationship Between Indexes 2.3 Bayesian Risk Evaluation Model 3 Example Verification 4 Conclusion References Three-Dimensional Risk Assessment Model for the Impact of Equipment Failure on HSR Operation 1 Introduction 2 Data Description 3 Analysis of HSR Equipment Failure Data 3.1 Analysis of HSR Equipment Failure Frequency 3.2 Analysis of Train Operation Affected by HSR Equipment Failure 4 Modeling 4.1 Risk Assessment Model 4.2 Quantification of Risk Assessment Indicators 4.3 Quantitative Synthesis of Qualitative Index Values by D-S Evidence Synthesis Method 4.4 Standardized Processing of Evaluation Indicators 4.5 Determination of the Weight of Evaluation Indicators 4.6 Risk Assessment Based on Improved Radar Charts 5 Case Study 5.1 Quantification of Risk Factors for Equipment Failure 5.2 Standardized Processing of Evaluation Indicators 5.3 Weights of Evaluation Indicators 5.4 Improved Radar Chart Method for Assessing Risk Levels 6 Conclusion 7 Data Availability Statement References Research on High-Resolution Imaging System with the Big Field of View Based on the Artificial Compound Eye for Overhead Contact Line System Intelligent Detection 1 Introduction 2 Intelligent Operation and Maintenance Requirements and Detection Methods of High-Speed Railway OCS 2.1 Contact Detection 2.2 Non-contact Detection 3 High Resolution Imaging System with the Big Field of View Based on the Artificial Compound Eye for OCS Intelligent Detection 3.1 Overall Design Process 3.2 Intelligent Recognition Algorithm for Typical Characteristics of OCS Operation and Maintenance Environment 3.3 Principle and Structure of the Artificial Compound Eye Imaging 3.4 Lens Arrangement of the Big Field of View Based on the Artificial Compound Eye for OCS Intelligent Detection 3.5 Image Stitching of High Resolution Imaging System Based on the Artificial Compound Eye 4 Conclusion 4.1 Operation and Maintenance Inspection System Requirements for High-Speed Railway OCS 4.2 Research Significance of High Resolution Imaging System with the Big Field of View Based on the Artificial Compound Eye for OCS Intelligent Detection System References Research and Application on Prognostics and Health Management Technology for Highspeed Train Traction System 1 Introduction 2 Development of PHM Technology 3 Key PHM Techniques in Highspeed Train Traction System 3.1 The Vehicle-Level Highspeed Train Traction System PHM Platform 3.2 On-Board Traction System PHM Platform 4 PHM Applications of Highspeed Train Traction System in Commercial Operation 5 Conclusion References Research on Traffic Scheduling for Time Aware Shaper Based on Satisfiability Modulo Theories 1 Introduction 2 Traffic Scheduling Constraint Model and Optimization 2.1 Basic Symbols and Meanings 2.2 Constraint Model for Scheduling 2.3 Optimization Objective 3 Simulation and Result Analysis of TAS Scheduling Algorithm 3.1 Experimental Methods 3.2 Experimental Results and Analysis 4 Conclusion References Characteristics of Interturn Short Circuit Fault in Three Phase Transformers 1 Introduction 2 Theoretical Analysis of 2-Turn Short Circuit 2.1 Analysis of Inter Turn Short Circuit Current 2.2 Analysis of Temperature Field of Interturn Short Circuit 3 Modeling and Simulation of Transformer Interturn Short Circuit Fault 3.1 Multi Physical Field Modeling of Transformers 3.2 Simulation Analysis of Interturn Short Circuit Fault 4 Experimental Verification of 4-Turn Short Circuit Fault Characteristics 4.1 Verification of Current Characteristics 4.2 Temperature Characteristic Verification 5 Conclusion References Design of Medium Frequency Induction Heating Power Supply for Contact Rail De-icing 1 Introduction 2 System Circuit Design 2.1 Overall Circuit Topology 2.2 Inverter Circuit Design 3 Control Strategy Analysis 3.1 Frequency Automatic Tracking 3.2 Phase Shift Power Regulation 4 Simulation 5 Conclusion References Adaptive Maximum High-Order Cyclostationarity Blind Deconvolution Method for Rolling Bearing Fault Diagnosis 1 Introduction 2 Adaptive Maximum High-Order Cyclostationarity Blind Deconvolution 2.1 Maximum High-Order Cyclostationarity Blind Deconvolution 2.2 Local Peak Ratio Indicator 2.3 Proposed Method Framework 3 Experimental Validation and Results Comparison 3.1 Experimental Setup 3.2 Experimental Results and Discussions 4 Conclusion References Multi-class Concrete Defect Detection Algorithm Based on Rep-PVT 1 Introduction 2 Rep-PVT 3 Experiment 3.1 Data Preparation 3.2 Model Training 3.3 Results and Analysis 4 Conclusion References Analysis of the Influence of Catenary Tension on Pantograph-Catenary Interaction Parameters Based on 1C Inspection Data 1 Introduction 2 Analysis of Catenary Vibration 3 Analysis of Inspection Data 3.1 Analysis of Inspection Data by TSG19A Pantograph 3.2 Analysis of Inspection Data by DSA380 Pantograph 3.3 Comparison of Inspection Waveforms 4 Conclusion References Text Classification Method for Urban Rail Transit Fire Accident Cases Based on Word2Vec + LSTM 1 Introduction 2 Research Objective 3 Model Description 3.1 Data Preprocessing 3.2 Introduction to Text Vectorization Model Based on Word2Vec 3.3 Introduction to Classification Model Based on LSTM 4 Case Study 4.1 Dataset Preparation 4.2 Text Classification Model Construction 4.3 Result Analysis 5 Conclusion References Analysis of the Electromechanical Coupling Characteristics of the Traction Drive System of a Constant Torque Zone Body-Suspended Train 1 Introduction 2 Modeling the Dynamics of a Body-Suspended High-Speed Train 2.1 Traction Drive System Model 2.2 Complete Vehicle Dynamics Model 3 Improved Direct Torque Control System Strategy and Simulation Model 3.1 Calculation of the Action Time of the Voltage Space Vector 3.2 Determination of Magnetic Chain Sectors 3.3 Construction of the SVPWM Simulation Module 4 Simulation Analysis 4.1 Influence of the Motor Traction Drive System on Vehicle Vibration Under Constant Torque Zone Traction Conditions 4.2 Stability Indicators 5 Conclusion References Scenario Elements Extraction and Scenario Sets Establishment Method for Railway Rainfall Disasters 1 Introduction 2 Motivation 3 Methodology 3.1 Classification of Railway Rainfall Disaster 3.2 Scenario Elements Extraction 3.3 Scenario Elements Classification 3.4 Scenario Sets Establishment 4 Case Study 4.1 Elements Extraction 4.2 Classification 4.3 Scenario Sets 5 Conclusion References Risk Coupling Analysis of Railroad Accident Based on Two-Layer N-K Model 1 Introduction 2 Related Work 2.1 Problem Description and Framework 2.2 Risk Factor Identification 2.3 Risk Coupling and Coupling Mechanism Analysis 3 Model Construction 3.1 Single-Factor Risk Coupling 3.2 Double-Factor Risk Coupling 3.3 Multi-factor Risk Coupling 4 Experiment and Result 4.1 Main Factor Coupling Degree 4.2 Sub-factor Coupling Degree 4.3 Analysis and Suggestions 5 Conclusion References Research on Identification of Causes and Prevention and Control Measures of Railway Freight Accidents Based on Complex Network 1 Introduction 2 Data Description 3 Construction of Complex Network Model for Accident Causation 3.1 Association Rules Mining 3.2 Construction of Complex Network Model 4 Analysis of the Causes of Accidents and Preventive and Control Measures 4.1 Model Topology Characterization 4.2 Key Causes and Links Mining 4.3 Accident Prevention and Control Recommendations 5 Conclusion References Air Brake System Fault Diagnosis Method Based on Optimized SVM 1 Introduction 2 Research Methodology 2.1 Challenges in Air Brake System Fault Diagnosis 2.2 Research Framework 3 Model Construction 3.1 Feature Selection 3.2 Feature Fusion 3.3 Optimized SVM 4 Case Study 4.1 Dataset 4.2 Feature Extraction 4.3 Feature Selection and Fusion 4.4 Experimental Results 5 Conclusion References Rolling Bearing Fault Diagnosis Method Based on GWO-VMD-SVM 1 Introduction 2 Research Methodology 2.1 Challenges in Rolling Bearing Fault Diagnosis 2.2 Research Process 3 Model Design 3.1 Optimization of VMD Parameters Based on GWO 3.2 Feature Extraction of Bearing Fault 3.3 Bearing Fault Classification Based on SVM 3.4 Bearing Fault Diagnosis Process 4 Case Study 4.1 Data Set Introduction 4.2 Experimental Validation 4.3 Comparison Analysis with EEMD 4.4 Comparison Analysis with VMD 5 Conclusion References Lightweight Detection of Fasteners with YOLOv8 Combined with ShuffleNetV2 1 Introduction 2 YOLOv8 Detection Model 2.1 Basic Principle of YOLOv8 Algorithm 2.2 The Improved Part of YOLOv8 Algorithm 3 The Method Detection Model in This Paper 3.1 ShuffleNetV2 3.2 SE Attention 3.3 Improvement of YOLOv8 4 Experimental Verification 4.1 Parameter Configuration 4.2 Data Collection and Processing 4.3 Analysis of Training and Testing Results 5 Conclusion References Application Practice of Intelligent Operation and Maintenance System of Escalator in Qingdao Metro Line 4 1 Introduction 2 Introduction to Escalator Intelligent Operation and Maintenance System 2.1 System Composition 2.2 System Network Architecture 2.3 Sensor Measurement Point Layout 2.4 Intelligent Operation and Maintenance System Monitoring Platform 3 Intelligent Operation and Maintenance System Functions 3.1 Time Domain Analysis 3.2 Frequency Domain Analysis 3.3 Envelope Analysis 3.4 Intelligent Early Warning 3.5 Intelligent Diagnosis 4 Typical Case Analysis 4.1 Escalator Motor Bearing is Faulty 4.2 The Tightening Force of the Escalator Main Drive Chain Changes 5 Conclusion References Influence of Complex Wear Forms of Subway Wheels on the Dynamic Response of Vehicles 1 Introduction 2 Data Collection and Analysis 2.1 The Data Analysis of Lateral Wheel Wear 2.2 The Data Analysis of Wheel Polygonization 3 Model Construction 3.1 The Complex Wheel Wear Model 3.2 Vehicle/rail System Dynamics Model 3.3 Model Validation 4 The Influence of Complex Wheel Wear Patterns on the Dynamic Characteristics of Wheel-Rail System 4.1 Wheel-Rail Contact Characteristics 4.2 Wheel-Rail Creep Characteristics 5 Conclusions References Architecture of Train Onboard Trusted Network System Based on Endogenous Security 1 Introduction 2 Architecture Design of Trusted Network System 3 Composition of Train Trusted Network System 4 Analysis of Trusted Transmission Mechanism 5 Typical Case Study 6 Conclusion References Identification and Assessment of Risk Factors in the Plateau Railway System 1 Introduction 2 Factors Construction 3 Risk Assessment Methods 3.1 Definition of Functional Importance 3.2 Multi Granularity Network Model 3.3 Risk Indicators for Multi Granularity Network Models 3.4 Functional Importance Calculation 3.5 Comprehensive Importance Calculation 4 Conclusion References Research on Faulty Speed Sensor Identification in High-Speed Train Traction System Based on Electromagnetic Torque Correlation Analysis 1 Introduction 2 Architecture and Related Control Algorithms of High-Speed Train Traction Systems 2.1 The Structure of the Traction System 2.2 Motor Control and Synchronization Algorithm in Traction System 3 Faulty Speed Sensor Identification Based on EMC-CVM 3.1 Introduction About CCM 3.2 Construction of Fault Feature Vector Based on Electromagnetic Torque Correlation 3.3 Faulty Speed Sensor Identification Based on Clustering 4 Simulation Verification 4.1 Development of Simulation Model and Parameter Configuration 4.2 Analysis of Simulation Results 5 Conclusions References Research on the SOTIF Analysis Method for Autonomous Perception Function Based on Adapted STPA 1 Introduction 2 SOTIF Hazard Model 2.1 Internal Causes 2.2 External Causes 3 Adapted STPA 4 Case 5 Conclusion References Information Security Risk Assessment Approach for Train Control Center and Interlocking Integrated System Based on FUCOM-CRADIS 1 Introduction 1.1 System Structure 1.2 Interface Between TIS and Other Subsystems 1.3 Information Security Risk Assessment Indicators of TIS 2 Theoretical Basis 2.1 FUCOM 2.2 CRADIS Algorithm to Evaluate the Information Security Risk of TIS 3 Information Security Risk Assessment of TIS 3.1 Determine the Security Attribute Matrix P(U) of Each Unit 3.2 Determine the Impact Value Score Table of Risk Assessment Indicators 3.3 Determine the Performance Value of Each Unit 3.4 Multi-Objective Decision-Making Information Security Risk Assessment 4 Conclusion References Research on the Health State Assessment of Electromagnetic Relays Based on PSO-SVM-DS 1 Introduction 2 Methodology 2.1 Dempster-Shafer's Theory 2.2 Support Vector Machine Combined with Dempster-Shafer's Theory 3 Experimental Validation and Results Comparison 3.1 The Electromagnetic Relay 3.2 The Feature Parameters of the Electromagnetic Relay Degeneration 3.3 The Electromagnetic Relay Test Rig 3.4 Data Acquisition and Feature Extraction 3.5 Result and Discussion 4 Conclusion References Innovation and Application of Vehicle Panoramic Intelligent Detection System in Air Defense Inspection for Airport Rapid Transit System 1 Introduction 2 Air Security Inspection Requirements for Rapid Transit Trains 3 Vehicle Panoramic Intelligent Detection System 4 Research on Vehicle Intelligent Scanning System Based on Security Inspection Requirements 4.1 Treatment of Image Distortion Caused by Train Deceleration 4.2 Treatment of Inconsistent Train Directions in Two Scanning Scenarios 4.3 Development of Train Image Data Processing Platform for Security Inspection Requirements 5 Case Study: Pudong International Airport Rapid Transit System 6 Conclusion References Design of an Intelligent Inspection Vehicle for the Track of a Suspended Permanent Magnet Maglev Train 1 Introduction 2 Overall Design of the Intelligent Inspection Robot System 3 System Hardware Design 4 System Software Design 4.1 Algorithm for Data Processing 4.2 Transmission Software Design 5 Experiment 5.1 Simulation Experiment 5.2 Actual Line Measurement Experiment 6 Conclusion References Roof Components of Metro Vehicles Detection Algorithm Based on Improved YOLOv5 1 Introduction 2 YOLOv5 Network 3 Improved YOLOv5 Network 3.1 Importing the Ghost Module 3.2 Introduction of Attention Mechanism 4 Experimental Process and Result Analysis 4.1 Data Collection 4.2 Data Set Production 4.3 Simulation Test Environment 4.4 Evaluation Indicators 4.5 Attention Mechanism Experiment 4.6 Model Improvement Experiment 4.7 Identification Experiments of Different Components 5 Conclusion References Research on Method of Temperature Detection for Running Parts of Subway 1 Introduction 2 Overall Design of System 2.1 Hardware Design 2.2 Software Design 3 Temperature Data Analysis and Processing 3.1 Data Preprocessing 3.2 Feature Analysis 3.3 Temperature Data Fitting Result 4 Conclusion References Online Monitoring System for Linear Motor Air Gap Based on Laser Displacement Sensor 1 Introduction 2 Overall System Architecture 2.1 Hardware System Design 2.2 Software System Design 3 Air Gap Data Processing 3.1 Data Preprocessing 3.2 Data Clustering Based on the BIRCH Algorithm 3.3 Tooth Data Extraction 4 Experimentation and Analysis 5 Conclusion References An Online Inspection System for Critical Train Roof Components Based on the Plane Array Camera 1 Introduction 2 System Design 2.1 System Structure 2.2 System Workflow 3 On-Line Detection Method of Roof Key Components 3.1 Image Stitching 4 Identification of Key Components 5 Test and Verification 5.1 Image Stitching 5.2 Identification of Key Components 6 Conclusion References On Line Inspection System of Wheelset Size Based on Multi-line Structured Light 1 Introduction 2 System Architecture 2.1 Introduction to Wheelset Size Parameters 2.2 System Structure Design 2.3 Processes of the System 3 Wheelset Fimension Calculation 3.1 Point Cloud Data Acquisition 3.2 Extraction of Wheelset Tread Curve 3.3 Acquisition of Wheel Pair Size Parameters 4 Experiments and Analysis 5 Conclusion References Rail Surface Defect Detection Based on MobileViTv2 and Eddy Current 1 Introduction 2 Methodology 2.1 Model Architecture 2.2 Rail Surface Defects 2.3 Loss Function 3 Experiment 3.1 Dataset 3.2 Train and