A PCOT Monitoring System Based on Virtual Instrument Technology

2013 ◽  
Vol 823 ◽  
pp. 241-246
Author(s):  
Ting Guo ◽  
Man Gong ◽  
Lei Xin Nie ◽  
Gen Ming Zhou
Keyword(s):  
Monitoring System ◽  
Experimental Verification ◽  
Virtual Instrument ◽  
Working Condition ◽  
Technical Support ◽  
Temperature Monitoring ◽  
Connecting Rod ◽  
Experimental Prototype ◽  
Working Principle ◽  
Instrument Technology

in order to monitoring connecting rod and crank pin bearings working condition, the PCOT monitoring system which was named crank pin oil temperature monitoring system was developed based on virtual instrument technology. The bearings working condition was estimated by testing oils temperature splashed from the connecting rod and crankshaft. The function, working principle and structure composition were described, and corresponding experimental prototype was researched. After experimental verification, this system could monitoring the crank pin oil temperature in a steady and reliable state, provided technical support for testing bearings faults.

Design of Granary Temperature Monitoring System Based on Virtual Instrument Technology

2012 ◽  
Vol 542-543 ◽  
pp. 212-216 ◽  
Author(s):  
Jian Liu
Keyword(s):  
Monitoring System ◽  
Virtual Instrument ◽  
Temperature Monitoring ◽  
Data Display ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
The Core ◽  
Core Components ◽  
Instrument Technology ◽  
And Storage

A hardware and software designing program of temperature monitoring system is proposed in this paper, which takes DS18B20 and single chip microcomputer as the core components. The system measures the real-time temperature, and supports the LCD display. The measured data is transferred to the host computer through RS232 bus. LabVIEW based PC software has data display and storage functions etc. It is verified that the system measurement error is within ±0.5°C. In the practice, the system can meet the needs of granary temperature measurement.

Research and Design on Monitoring System of Simple Bridge Based on Virtual Instrument Technology

2012 ◽  
Vol 490-495 ◽  
pp. 2624-2627
Author(s):  
Hua Wen Zheng ◽  
Liu Chang ◽  
Chuan Hui Wu ◽  
Yu Liang
Keyword(s):  
Monitoring System ◽  
Virtual Instrument ◽  
Analysis Data ◽  
System Structure ◽  
Time Data ◽  
Bridge Monitoring ◽  
Instrument Technology ◽  
Software And Hardware ◽  
Bridge Monitoring System ◽  
Research And Design

Design of a monitoring system based on virtual instrument technology for a simple bridge. This paper discusses the bridge monitoring system structure, software and hardware. The system can realize functions such as data acquisition, real-time data display, online analysis, offline analysis, data management and so on. Therefore, the monitoring system can be applied to a variety of bridges. The presented monitoring system has an important guidance meaning and practical value for bridge monitoring.

Development of PCG Monitor Based on Virtual Instrument Technology

2014 ◽  
Vol 508 ◽  
pp. 192-195
Author(s):  
Zhi Dong Wang ◽  
Yu Guo ◽  
Heng Ye ◽  
Bing Yang
Keyword(s):  
Monitoring System ◽  
Data Storage ◽  
Virtual Instrument ◽  
Remote Monitoring ◽  
Serial Communication ◽  
Internet Technology ◽  
Signal Extraction ◽  
The Internet ◽  
Characteristic Signal ◽  
Instrument Technology

By utilized VISA functions provided by LabVIEW, we can easily and successfully realize the serial communication between cardiechema senor and monitoring system, as well as collected data written into and read from Access through database functions. The perfect combination between the internet technology and the virtual instrument has provided a promising platform for the realization of the virtual instrument networking. This paper mainly introduces the construction of phonocardiogram monitoring system which has some functions such as real-time monitoring, data storage, signal preprocessing, playback, characteristic signal extraction, remote monitoring and so on.

Study and Design of Monitoring System of Reactor Coolant Pump in Nuclear Power Plant

2010 ◽  
Author(s):  
Lei You ◽  
Fuchun Sun ◽  
Pan He ◽  
Hongkun Xu ◽  
Fang Fang
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Monitoring System ◽  
Virtual Instrument ◽  
Nuclear Power ◽  
Failure Process ◽  
Coolant Pump ◽  
Reactor Coolant ◽  
Instrument Technology ◽  
The Fourier Transform

In this paper, we develop a monitoring system of reactor coolant pumps in nuclear power plant (CPS). The safe running of reactor coolant pump is important for nuclear power plant. Based on the Fourier transform (FT) and some algorithm, The data collected from the pump are analyzed. Once the accident happens, it would cause unimaginable outcome. The system will be jumped to failure process mode when the pump has something wrong. The advanced VXI and virtual instrument technology are applied to system, and the reactor coolant pump will be monitored overall so as to assure that the reactor coolant pump runs in safe, which has a significant value to secure the safe operation and reliability of the nuclear plant. The monitoring system will help the operators find fault of reactor coolant pump.

Research on Wireless Monitoring System of Gypsum Mine Goaf Based on LabVIEW

2014 ◽  
Vol 608-609 ◽  
pp. 281-285 ◽  
Author(s):  
Hai Na Zhang ◽  
Yuan Hao Liu ◽  
Xuan Zhou ◽  
Gao Feng Ren
Keyword(s):  
Monitoring System ◽  
Programming Language ◽  
Virtual Instrument ◽  
Wireless Transmission ◽  
Sensor Technology ◽  
Failure Characteristics ◽  
Safety Hazard ◽  
Wireless Monitoring ◽  
Potential Safety ◽  
Instrument Technology

According to the gypsum mine goaf disaster formation mechanism and failure characteristics, wireless monitoring system of gypsum mine goaf was designed successfully by using virtual instrument technology, modern sensor technology, wireless transmission technology and the LabVIEW programming language. By using high-precision sensors to acquire dynamical data of monitoring projects, combined with wireless transmission technology to realize the automatic wireless real-time telemetry, using the graphical programming language LabVIEW to develop a software with friendly interface and convenient operation, the monitoring system can timely reflect the dynamic changes of the goaf and forecast the potential safety hazard, to ensure the safety in production of gypsum mine.

Monitoring System of Truck Crane Boom Lifting and Slewing Operating Reliability

2013 ◽  
Vol 373-375 ◽  
pp. 2124-2127
Author(s):  
Han Fu ◽  
Shu Mao Wang ◽  
De Wei Ding
Keyword(s):  
Monitoring System ◽  
Virtual Instrument ◽  
Spread Spectrum ◽  
Operating Reliability ◽  
Data Collector ◽  
Client Software ◽  
Instrument Technology ◽  
The Subject ◽  
Number Of Cycles

The subject of boom lifting and slewing need to repeat ten hundreds times in truck crane operating reliability, resulting in lasting for dozens of days. It is difficult for the inspection officials to supervise the entire procedures, which influences the objectivity of examination. A monitoring system was developed based on virtual instrument technology. It consisted of the load lifting height detection nodes, boom slewing counter module and data collector, etc. The height was measured by two relative-distance wireless nodes which are based on CSS (Chirp Spread Spectrum, CSS) technology. The boom slewing count was achieved by logic circuit. The signal of it was input by two sensors which were distributed at 180°. The height and count were transported to data collector via wireless network. The number of cycles of boom lifting and slewing was automatically judged by client software in data collector based on the height and slewing count. Preliminary experiments were conducted. A total of 800 experiments were tried and 793 times were successfully counted. The accuracy was 99.1%. The results show that the system can meet long-term demand for reliability test effectively. It is helpful to reduce labor intensity and guarantee the authenticity of examination.

scholarly journals Competing failure analysis of aircraft connecting-rod-type cabin door retraction mechanism with intermission considered

2021 ◽  
Vol 39 (5) ◽  
pp. 1105-1113
Author(s):  
Jingyi LIU ◽  
Yugang ZHANG ◽  
Xinchen ZHUANG ◽  
Huan PANG
Keyword(s):  
Working Condition ◽  
Degradation Process ◽  
The Novel ◽  
Failure Model ◽  
Connecting Rod ◽  
Engineering Project ◽  
Wear Model ◽  
Failure Characteristics ◽  
Degradation Failure ◽  
Working Principle

A novel competing failure model considering intermission is established in this paper, which is appropriate for aircraft connecting-rod-type cabin door retraction mechanism. Poisson process, Archard wear model and failure functions are integrated to describe the catastrophic failure and degradation failure of the aircraft mechanism. Intermission is introduced in the novel competing failure model after considering the actual working condition and working factors. Based on the analysis of mechanism working principle and failure characteristics, a certain aircraft connecting-rod-type cabin door retraction mechanism is studied as an example. The case results indicate that this mechanism has an unusual degradation process. Besides, the novel competing failure model with intermission is effective in engineering project.

LabVIEW8.6-Based Temperature Monitoring System for Generator Bearing

2013 ◽  
Vol 373-375 ◽  
pp. 884-887
Author(s):  
Qin Chun Hu ◽  
Peng Hu
Keyword(s):  
Monitoring System ◽  
Virtual Instrument ◽  
Engineering Application ◽  
High Accuracy ◽  
Experimental Results ◽  
Good Stability ◽  
Measuring System ◽  
Software Implementations ◽  
Instrument Technology ◽  
Filtering Effect

A generator bearing temperature measuring system is designed, based on the LabVIEW8.6 and virtual instrument technology, in this paper. The hardware and software implementations of the system are introduced. The system is tested and analyzed both in algorithm of linearity and filtering effect. The experimental results show that the proposed system has good characters of good stability and high accuracy, which are valuable in engineering application.

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