Real-time vibration monitoring system of thin-walled structures' health status based on the self-mixing effect

2018 ◽  
Author(s):  
Benli Yu ◽  
Liang Lu ◽  
Rong Xiang
Keyword(s):  
Health Status ◽  
Real Time ◽  
Monitoring System ◽  
The Self ◽  
Vibration Monitoring ◽  
Mixing Effect ◽  
Thin Walled Structures ◽  
Thin Walled

scholarly journals Design of the VRLA Battery Real-Time Monitoring System Based on Wireless Communication

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4350
Author(s):  
Rui Lu ◽  
Jiwu Lu ◽  
Ping Liu ◽  
Min He ◽  
Jiangwei Liu
Keyword(s):  
Health Status ◽  
Wireless Communication ◽  
Real Time ◽  
Monitoring System ◽  
Internal Resistance ◽  
Real Time Monitoring ◽  
Single Function ◽  
Communication Module ◽  
Remaining Capacity ◽  
Vrla Battery

The VRLA (valve-regulated lead-acid) battery is an important part of a direct current (DC) power system. In order to resolve issues of large volume, complicated wiring, and single function for a battery monitoring system at present, we propose to build a novel intelligent-health-monitoring system. The system is based on the ZigBee wireless communication module for collecting voltage, temperature, internal resistance, and battery current in real-time. A general packet radio service (GPRS) network is employed for interacting data with the cloud-monitoring platform. The system can predict the remaining capacity of the battery combined with the software algorithm for realizing real-time monitoring of the battery’s health status and fault-warning, providing a basis for ensuring the safe and reliable operation of the battery. In addition, the system effectively integrates most of the circuits of the battery status collector onto one chip, which greatly reduces the size and the power consumption of the collector and also provides a possibility for embedding each VRLA battery with a chip that can monitor the health status during the whole life. The test results indicate that the system has the characteristics of real-time monitoring, high precision, small-volume, and comprehensive functions.

A Real-Time Condition Monitoring System for a Machine Tool Spindle

2010 ◽  
Vol 450 ◽  
pp. 259-262 ◽  
Author(s):  
Chao Ching Ho ◽  
Tzu Hsin Kuo ◽  
Tsung Ting Tsai
Keyword(s):  
Machine Tool ◽  
Real Time ◽  
Monitoring System ◽  
Condition Monitoring ◽  
Vibration Monitoring ◽  
Sensor System ◽  
External Information ◽  
Processing Quality ◽  
Machine Tool Spindle ◽  
Condition Monitoring System

Designing a robust condition monitoring system for a machine tool spindle is an important task because the spindle has a significant effect on the processing quality. In this study, a solar-powered wireless sensor system is installed inside the spindle and is used to monitor the machine tool processing state in real time, thereby improving the processing quality. Accelerometer sensors are employed to estimate tool wear; these sensors monitor the vibration of the spindle. The vibration monitoring data of the high-speed spindle is wirelessly transmitted to an external information device in real time. As an alternative to sensors that employ wired power transmission, a solar energy transmission system has been developed to provide the required electric power to the sensor system. The experimental results show that the proposed system successfully measures the vibration frequency of the rotational machine tool spindle.

Design and Application of Aeolian Vibration Monitoring System for Overhead Transmission Line

2012 ◽  
Vol 239-240 ◽  
pp. 456-461
Author(s):  
Bu Sheng Tong ◽  
Yu Xiang Lv ◽  
Bei Ge Yang ◽  
Hui Xue ◽  
Shan Zhi
Keyword(s):  
Transmission Line ◽  
Real Time ◽  
Monitoring System ◽  
Theoretical Models ◽  
Correction Method ◽  
Fatigue Tests ◽  
Least Square ◽  
Vibration Monitoring ◽  
The Real ◽  
Aeolian Vibration

Aim at the shortage of traditional Aeolian vibration fatigue tests and theoretical models for transmission line, the Aeolian vibration monitoring system of transmission line based on the ZigBee wireless network was designed. The system transfer real-time field data of meteorological factors, tension of conductor and acceleration of monitoring nodes to background computer. The line vibration curve integrated directly from the acceleration sensor recorded data will present a serious problem of baseline drift. Therefore, based on least-square theory, a new baseline correction method is proposed to eliminate effect on drifts, and then obtain distortion less vibration curve of transmission line by twice integrations. The system running results show that track fitted with monitoring data is in good agreement with the real recorded trajectory. The system can satisfy the needs of the real time monitoring on transmission line site and be well applied to the calculation of conductor fatigue damage.

scholarly journals Real-Time and Efficient Traffic Information Acquisition via Pavement Vibration IoT Monitoring System

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2679
Author(s):  
Zhoujing Ye ◽  
Guannan Yan ◽  
Ya Wei ◽  
Bin Zhou ◽  
Ning Li ◽  
...  
Keyword(s):  
Embedded System ◽  
Real Time ◽  
Monitoring System ◽  
Information Acquisition ◽  
Vibration Signal ◽  
High Energy ◽  
Traffic Monitoring ◽  
Vibration Monitoring ◽  
Traffic Information ◽  
Real Time Traffic

Traditional road-embedded monitoring systems for traffic monitoring have the disadvantages of a short life, high energy consumption and data redundancy, resulting in insufficient durability and high cost. In order to improve the durability and efficiency of the road-embedded monitoring system, a pavement vibration monitoring system is developed based on the Internet of things (IoT). The system includes multi-acceleration sensing nodes, a gateway, and a cloud platform. The key design principles and technologies of each part of the system are proposed, which provides valuable experience for the application of IoT monitoring technology in road infrastructures. Characterized by low power consumption, distributed computing, and high extensibility properties, the pavement vibration IoT monitoring system can realize the monitoring, transmission, and analysis of pavement vibration signal, and acquires the real-time traffic information. This road-embedded system improves the intellectual capacity of road infrastructure and is conducive to the construction of a new generation of smart roads.

scholarly journals A Thing Speak IoT Based Vibration Measurement and Monitoring System Using an Accelerometer sensor

2021 ◽  
Vol 9 (8) ◽  
pp. 1249-1258
Author(s):  
shubhangi Kumari
Keyword(s):  
Internet Of Things ◽  
Real Time ◽  
Monitoring System ◽  
Web Applications ◽  
Current Model ◽  
Vibration Monitoring ◽  
Vibration Measurement ◽  
Prototype System ◽  
Accelerometer Sensor ◽  
Data Collections

Abstract: This paper presents the development of a Thing Speak IoT on a Real-Time Vibration measurement System using the accelerometer Sensor. Many systems have been designed previously but some lack systems are identified where it does not provide adaptively connections and alert to web pages on logging data collections. Thus, understanding the previous system model is important to compare the importance of new build parameters in designing the new system. An evaluation of the current model, hardware, and software is important before a new architecture is developed. This research has developed a prototype system to monitor and measure the vibration of a system remotely and setting up threshold and alert accordingly. The designed system assisted with an internet as vibration monitoring system for the machines. Research methods consist of two parts involved hardware and software development. The hardware development covers the connections of the accelerometer sensor and the software involved in constructed coding using the C language program. The program then is compiled and uploaded into the Node MCU to display the acceleration of the system. An open-source Internet of Things called Thing Speak is used as a platform to retrieve and display the collected data. Real-time monitoring can be accessed through Smartphone and web applications. This study has been considered successfully implemented and it is a significant study that performs on new IoT platforms and adaptively ready to monitor a vibration remotely. Keyword: Accelerometer Sensor, Internet of Things, Thing Speak, Real-Time.

scholarly journals Affordable Remote Monitoring of Health Status using Facial Image Processing

2019 ◽  
Vol 8 (12) ◽  
pp. 2518-2521
Keyword(s):  
Image Processing ◽  
Health Status ◽  
Real Time ◽  
Monitoring System ◽  
Remote Monitoring ◽  
High Speed ◽  
Vital Signs ◽  
Close Monitoring ◽  
High Speed Camera ◽  
Remote Monitoring System

This paper presents a real-time monitoring system with a novel approach to assess the human health status without the need for using a body sensor. The project mainly targets improving the quality of life for those living independently but still require close monitoring. Skin fluctuation of the human face is monitored real time with a high-speed camera to determine vital signs including the heart rate and blood pressure. A few image processing algorithms have been utilized to determine the image fluctuations and extract the related features and acquire vital signals. An algorithm assesses and evaluates the risks involved in irregular behaviors and takes follow up actions where required. The application has been implemented on two platforms and interfaced with a high-speed camera to evaluate the performance of the remote monitoring system in indoor situations.

Real-Time Distributed Vibration Monitoring System Using $\Phi$ -OTDR

2017 ◽  
Vol 17 (5) ◽  
pp. 1333-1341 ◽  
Author(s):  
Yu Wang ◽  
Baoquan Jin ◽  
Yuncai Wang ◽  
Dong Wang ◽  
Xin Liu ◽  
...  
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Vibration Monitoring
Sign in / Sign up

Export Citation Format

Share Document