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Wind-flow around a long-span bridge, as a bluff body, will generate an aerodynamic force that interacts with the flow, causing vibration to the bridge deck. This phenomenon can lead to structural fatigue or worst, the bridge collapse. A continuous and comprehensive measurement system is needed for early detection and maintenance reference of a long-span bridge. Another benefit this system is aiming...
Open Platform Communication (OPC) also known as Object Linking and Embedding (OLE) for Process Control (OPC) is the platform for communication in automation and manufacturing fields among the group of networked devices. OPC standard supports the group of specifications known as OPC-Data Access (OPC-DA), OPC-Historical Data Access (OPC-HDA) and OPC-Unified Architecture (OPC-UA). In this paper, the...
Vibration sensor is becoming an essential part of Internet of Things (IoT), fueled by the quickly evolving technology improving the measurement accuracy and lowering the hardware cost. Vibration sensors physically attach to core equipments in control and manufacturing systems, e.g., motors and tubes, providing key insight into the running status of these devices. Massive readings from vibration sensors,...
An efficient communication method of wind-turbine vibration monitoring system based on Socket protocol is discussed in this paper. The extraction and storage of suspicious data can reduce the amount of data, increase the data validity and lighten the network load, At the same time, the real-time monitoring of suspicious data can improve the monitoring efficiency and reduce the intensity, thereby faults...
The problem of identification and isolation of dangerous zones in offshore installations is investigated in this preliminary work. A node positioning algorithm is implemented in order to track and identify the operational movements on board the vessel. This implementation is realised with an XBee network that uses a trilateration method, making it possible to actively monitor and dynamically identify...
This paper lays out the current work and discuss about the virtual lab simulation of rolling element bearing defects either the inward or external race or on the moving component surface that are visually undetectable. The present experiment proposed in this paper teaches how a bearings fault in the system is monitored based on the vibration analysis. Bearing failures have incredible effect on industry...
After nearly 20 years of accumulation, highway tunnel in our country has a remarkable progress in quality and quantity. At the beginning of 21st century, the difficulty of tunnel construction will face more severe challenges. So in underwater tunnel construction technology, Database of highway tunnel, Information design and construction technology, the mountain tunnel construction technology and operating...
During the past, nuclear power plants personnel has established a list of parameters that need permanent monitoring due to the fact that they directly influence the decisional process in avoiding alarming states or reducing the outcome of potential incidents. All this have lead to the need for an integrated monitoring, processing and alarming system. A potential beneficiary would have great interest...
This paper designs the rotor monitoring system based on LabVIEW using virtual instrument technology with taking multi-function rotor test-bed as monitoring object. The monitoring system accomplishes the multi-channel data acquisition of the rotor using sensors, which includes motor speed, vibration and noise data. The results show that the monitoring system realizes lots of functions, such as data...
Based on the analysis of the influence of the vibration and noise of the running transformer on China's power grid, the monitoring technology is studied. With the use of computer technology, communications technology and network technology, a web-based on-line monitoring system for the vibration and noise of the transformer is developed. With SQL Server 2000 as the database, the system uses the Winsock...
Mobile applications and devices are one of the fasted developing computer technologies now days. Mobile devices, such as smartphons, are not used for communication only but also for remote data access and exchange. In this article mobile application for remote monitoring of power generators condition is discussed. Application was run on Symbian OS based cell phones and was developed using Python -...
The turbo-generator unit is very important equipments for electric power production, which has a high rate of fault and causes a lot of harm because of the structural complexity and the special circumstance. With the increasing of the capacity of the unit, the condition monitoring and fault diagnosis plays an important role to ensure safe operation and guarantee the efficiency. Therefore, the real-time...
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