Design and application of real-time monitoring system for service status of continuously welded turnout on the high-speed railway bridge

2019 ◽  
pp. 1-24
Author(s):  
Xiaopei Cai ◽  
Wenhao Chang ◽  
Liang Gao ◽  
Chenyi Zhou
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
High Speed ◽  
Railway Bridge ◽  
Real Time Monitoring ◽  
High Speed Railway ◽  
Design And Application

Design and application of a real-time monitoring system for vessel motion and sea environment

2020 ◽  
pp. 1-10
Author(s):  
Duanfeng Han ◽  
Kuo Huang ◽  
Yingfei Zan ◽  
Lihao Yuan ◽  
Zhaohui Wu ◽  
...  
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Real Time Monitoring ◽  
Vessel Motion ◽  
Design And Application

scholarly journals A power-quality monitoring and assessment system for high-speed railways based on train-network-data center integration

2021 ◽  
Vol 29 (1) ◽  
pp. 30-41
Author(s):  
Jun Zhu ◽  
Haitao Hu ◽  
Zhengyou He ◽  
Xiaomin Guo ◽  
Weiguo Pan
Keyword(s):  
Real Time ◽  
Power Quality ◽  
Monitoring System ◽  
Power Supply ◽  
Data Center ◽  
High Speed ◽  
Real Time Monitoring ◽  
Traction Power Supply ◽  
Supply Systems ◽  
Traction Power

AbstractIn recent years, with the rapid development of high-speed railways (HSRs), power interruptions or disturbances in traction power supply systems have become increasingly dangerous. However, it is often impossible to detect these faults immediately through single-point monitoring or collecting data after accidents. To coordinate the power quality data of both traction power supply systems (TPSSs) and high-speed trains (HSTs), a monitoring and assessing system is proposed to access the power quality issues on HSRs. By integrating train monitoring, traction substation monitoring and data center, this monitoring system not only realizes the real-time monitoring of operational behaviors for both TPSSs and HSTs, but also conducts a comprehensive assessment of operational quality for train-network systems. Based on a large number of monitoring data, the field measurements show that this real-time monitoring system is effective for monitoring and evaluating a traction-network system.

Research on Real-Time Process Monitoring Technology and System for High-Speed Turbopump

2009 ◽  
Vol 413-414 ◽  
pp. 463-469
Author(s):  
L.R. Xia ◽  
Niao Qing Hu ◽  
G.J. Qin
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Process Monitoring ◽  
Digital Signal Processor ◽  
High Speed ◽  
Time Process ◽  
Real Time Monitoring ◽  
Monitoring Technology ◽  
The Real ◽  
Multiple Domain

Turbopump is a high-fault-rate component in Liquid Rocket Engine (LRE). The research on real-time process monitoring technology and system for turbopump is vital to increase the reliability and safety of LRE. In this paper, three real-time process monitoring algorithms for turbopump were studied firstly, on the basis of monitoring parameters selection and multiple domain feature extraction. Then, the real-time monitoring system realized by means of PXI (PCI eXtensions for Instrumentation) controller was introduced. And, aiming at the shortage of the previous system, the real-time process monitoring system based on DSP (Digital Signal Processor) for turbopump was studied to realize higher computing speed, which could conduce to extract multiple domain features and run manifold real-time monitoring algorithms. The new system could also satisfy the small-sized requirement in engine flying state.

Research on Real-Time Monitoring System for Traction Motor of EMUs

2014 ◽  
Vol 898 ◽  
pp. 904-909
Author(s):  
Lin Ji Zhang ◽  
Qin Yue Zhu ◽  
Ze Hao Shen ◽  
Pei Pei Lv
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
High Speed ◽  
Input Power ◽  
Signal Frequency ◽  
Stable Operation ◽  
Real Time Monitoring ◽  
Time Data ◽  
Human Machine Interaction ◽  
Development Platform

A multi-function, easily extensible and portable tracking and monitoring system is designed for traction and drive system to meet the growing requirements of high-speed EMUs, which is increasingly complex for real-time monitoring system. The design principle of the embedded hardware system based on the modular structure of CPCI bus is presented in details, and the realization of software functions such as on-line real-time data processing, offline data analysis, and human-machine interaction is put forward on the basis of LabVIEW development platform. Furthermore, the VI design and scheduling mechanism based on state-machine are elaborated, and the measurement algorithm and its implementation of the traction motors input power and constantly changing signal frequency of the monitoring system is also analyzed. The system has been applied in certain models of the high-speed EMUs, and its stable operation, flexible settings, high accuracy and good application effect makes it provide a scientific guarantee for the safe operation of the high-speed EMUs.

scholarly journals Long-Term Structural Health Monitoring System for a High-Speed Railway Bridge Structure

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
You-Liang Ding ◽  
Gao-Xin Wang ◽  
Peng Sun ◽  
Lai-Yi Wu ◽  
Qing Yue
Keyword(s):  
Structural Health Monitoring ◽  
Monitoring System ◽  
Health Monitoring ◽  
High Speed ◽  
Railway Bridge ◽  
High Speed Railway ◽  
Health Monitoring System ◽  
Structural Health ◽  
Mathematical Correlation ◽  
Correlation Models

Nanjing Dashengguan Bridge, which serves as the shared corridor crossing Yangtze River for both Beijing-Shanghai high-speed railway and Shanghai-Wuhan-Chengdu railway, is the first 6-track high-speed railway bridge with the longest span throughout the world. In order to ensure safety and detect the performance deterioration during the long-time service of the bridge, a Structural Health Monitoring (SHM) system has been implemented on this bridge by the application of modern techniques in sensing, testing, computing, and network communication. The SHM system includes various sensors as well as corresponding data acquisition and transmission equipment for automatic data collection. Furthermore, an evaluation system of structural safety has been developed for the real-time condition assessment of this bridge. The mathematical correlation models describing the overall structural behavior of the bridge can be obtained with the support of the health monitoring system, which includes cross-correlation models for accelerations, correlation models between temperature and static strains of steel truss arch, and correlation models between temperature and longitudinal displacements of piers. Some evaluation results using the mean value control chart based on mathematical correlation models are presented in this paper to show the effectiveness of this SHM system in detecting the bridge’s abnormal behaviors under the varying environmental conditions such as high-speed trains and environmental temperature.

Design of Dust Monitoring System Based on Embedded Linux

2015 ◽  
Vol 742 ◽  
pp. 216-220
Author(s):  
Yang Feng ◽  
Long Zhou
Keyword(s):  
Embedded System ◽  
Real Time ◽  
Monitoring System ◽  
High Speed ◽  
High Performance ◽  
High Sensitivity ◽  
Embedded Linux ◽  
Real Time Monitoring ◽  
Stable Performance ◽  
Speed Accuracy

This paper proposes the introduction of embedded technology in dust monitoring system to realize real-time monitoring online in factories. Taking S3C2440 as hardware platform and embedded Linux the developmental environment, the system also introduces a development kit Qt/Embedded from high-performance embedded system GUI. With a soft-hardware system scheme, it realizes the design of real-time monitoring on parameters like dust concentration in the air. Much emphasis has been laid on the analysis of system composition, working theory, hardware design and software development. Integrating functions of displaying, information processing, monitoring etc., the system has such advantages as high-speed, accuracy, high sensitivity and stable performance, and can be matched with various monitoring systems.

scholarly journals Train-Induced Vibration Monitoring of Track Slab under Long-Term Temperature Load Using Fiber-Optic Accelerometers

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 787
Author(s):  
Jianxiang Zhang ◽  
Wenzhu Huang ◽  
Wentao Zhang ◽  
Fang Li ◽  
Yanliang Du
Keyword(s):  
Real Time ◽  
High Speed ◽  
Fiber Optic ◽  
Vibration Response ◽  
Real Time Monitoring ◽  
High Speed Railway ◽  
Temperature Load ◽  
Track Slab ◽  
Train Induced Vibration

The train-induced vibration response provides a flexible solution for the real-time monitoring deformation of high-speed railway track slab in actual operation. This paper proposes a long-term real-time monitoring method for track slab deformation based on wavelet packet energy (WPE) using fiber optic accelerometers to record train-induced vibration. We found that the vibration response law of track slab deformation could be established by using the WPE of the frequency band covering the first- and second-order frequencies induced by the adjacent carriages. A field test was carried out for more than one year on the Beijing–Shanghai high-speed railway to investigate the train-induced vibration response law of track slab that was continuously deformed under a long-term temperature load. The maximum values of the WPE characteristic index appeared in winter and summer, and they were positively correlated with the temperature difference between the air environment and the track slab under the daily temperature load. These results were demonstrated to be consistent with the track slab deformation law for long-term and daily temperature loads. The novel method based on fiber optic accelerometers and WPE provides a new method for the long-term and real-time monitoring of track slab deformation.

INVESTIGATION OF HAND KINEMATICS TOWARDS FRONT CRAWL SWIMMING USING NON-INVASIVE REAL-TIME MONITORING SYSTEM

2014 ◽  
Author(s):  
Rozaimi Ghazali ◽  
◽  
Asiah Mohd Pilus ◽  
Wan Mohd Bukhari Wan Daud ◽  
Mohd Juzaila Abd Latif ◽  
...  
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Real Time Monitoring ◽  
Front Crawl ◽  
Non Invasive ◽  
Hand Kinematics
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