Research on Working Condition Division Based on On-line Analyzer Data

2019 ◽  
Author(s):  
Xueqing Wang ◽  
Xiaohong Wang ◽  
Hongliang Yu
Keyword(s):  
Working Condition ◽  
On Line

Research on the Working Condition Monitoring and Protecting System for Mine Belt Conveyor

2011 ◽  
Vol 58-60 ◽  
pp. 518-523
Author(s):  
Min Huang
Keyword(s):  
Condition Monitoring ◽  
Lower Cost ◽  
Working Condition ◽  
High Reliability ◽  
Belt Conveyor ◽  
Simulation Experiments ◽  
Distributed Computer System ◽  
Industrial Experiments ◽  
On Line ◽  
Steel Cord

A new distributed computer system used for real-time monitoring and protecting of mine steel-cord belt conveyor is developed and introduced in this paper. It can accomplish the on-line monitoring of some faults of the conveyor, such as splice breaking, longitudinal rip, fire and tension super-threshold etc. Simulation experiments and industrial experiments show that this system possesses many advantages such as general, high reliability, lower cost, easy installation, evidential suitability, etc. So it is feasible.

The Concentration of Air and Pulverized Coal Boiler Optimization Methods and Research

2011 ◽  
Vol 71-78 ◽  
pp. 2465-2469
Author(s):  
Xiao Hong Cheng
Keyword(s):  
Monitoring System ◽  
Working Condition ◽  
Thermal Power ◽  
Optimization Methods ◽  
Pulverized Coal Boiler ◽  
On Line ◽  
Steady Combustion ◽  
Air Speed ◽  
Secondary Air ◽  
Coal Boiler

The adjustment of the primary and secondary air speed and air quantity in thermal power plant is generally based on the measurement of static meter to show its working condition. It is difficult to adjust the air-coal parameter of each combustor to a reasonable value according to the static value for no certain relationship between the static value and the air speed is available to calculate the air speed and air quantity. The on-line monitoring system of boiler air-powder computer for real-time monitoring is adopted to keep the boiler in a state of balanced and steady combustion. The steady and accurate monitoring system and the automatic input rate of boiler (100%), which could detect the load distribution, pipe blockage, powder interruption and spontaneous combustion accurately, shows considerable value in energy conservation and great practical value in regard to combustion adjustment and reasonable distribution of air and powder.

Research on On-Line Monitoring of Transmission Tower Stress

2014 ◽  
Vol 668-669 ◽  
pp. 948-952 ◽  
Author(s):  
Jin Wang ◽  
Zhi Xiong Liu ◽  
Zhang Qin Wu ◽  
Chuan Ai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Failure Probability ◽  
System Architecture ◽  
Working Condition ◽  
Transmission Tower ◽  
Element Analysis ◽  
Stress Sensors ◽  
On Line

This paper studies the on-line monitoring system of transmission tower stress.Firstly, it introduces the necessary of this system, gives its system architecture. Then it presents an algorithm to determine the stress sensors' installation points on the tower, which based on finite element analysis. Through calculating the stress distribution condition of different components of the transmission tower under typical working condition, these points with relatively higher failure probability in the transmission tower can be monitored by installing stress sensors on them. Finally, it uses a 500kV oxytropis tower as an example to show the algorithm flow.

Remote Monitoring System for Direct Current Power

2013 ◽  
Vol 313-314 ◽  
pp. 524-529
Author(s):  
Ren Li Liu ◽  
Yi Zhan ◽  
Bin Yan ◽  
Hui Juan Wang
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Direct Current ◽  
Remote Monitoring ◽  
Working Condition ◽  
The Internet ◽  
Real Time Monitoring ◽  
Remote Monitoring System ◽  
Dc Power ◽  
On Line

With the purpose of remote centralized monitoring for DC Power, the paper has the scheme of the system of on-line real-time monitoring based on Web, and emphatically introduces the design and development of the monitoring server. The system realizes collecting, storage and real-time display of multiple DC Power, which makes the crews monitor the real-time working condition of DC wherever they could access the Internet. The system has good extensibility and a promising prospect in practical.

The on-line use of histogram data for high-speed correction and alignment of electron microscope images

1984 ◽  
Vol 42 ◽  
pp. 556-557
Author(s):  
William Krakow
Keyword(s):  
Power Spectrum ◽  
High Speed ◽  
Direct Memory Access ◽  
Digital Television ◽  
Contrast Transfer Function ◽  
The Past ◽  
High Resolution Tem ◽  
On Line ◽  
Correction Of Astigmatism ◽  
The Fourier Transform

In the past few years on-line digital television frame store devices coupled to computers have been employed to attempt to measure the microscope parameters of defocus and astigmatism. The ultimate goal of such tasks is to fully adjust the operating parameters of the microscope and obtain an optimum image for viewing in terms of its information content. The initial approach to this problem, for high resolution TEM imaging, was to obtain the power spectrum from the Fourier transform of an image, find the contrast transfer function oscillation maxima, and subsequently correct the image. This technique requires a fast computer, a direct memory access device and even an array processor to accomplish these tasks on limited size arrays in a few seconds per image. It is not clear that the power spectrum could be used for more than defocus correction since the correction of astigmatism is a formidable problem of pattern recognition.

Image registration with a computer driven S.T.E.M.

1978 ◽  
Vol 36 (1) ◽  
pp. 98-99
Author(s):  
A.M.H. Schepman ◽  
J.A.P. van der Voort ◽  
J.E. Mellema
Keyword(s):  
Spot Size ◽  
Scanning Transmission Electron Microscope ◽  
Small Computer ◽  
Structural Studies ◽  
Area Of Interest ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Specimen Area ◽  
On Line ◽  
Minimum Distances

A Scanning Transmission Electron Microscope (STEM) was coupled to a small computer. The system (see Fig. 1) has been built using a Philips EM400, equipped with a scanning attachment and a DEC PDP11/34 computer with 34K memory. The gun (Fig. 2) consists of a continuously renewed tip of radius 0.2 to 0.4 μm of a tungsten wire heated just below its melting point by a focussed laser beam (1). On-line operation procedures were developped aiming at the reduction of the amount of radiation of the specimen area of interest, while selecting the various imaging parameters and upon registration of the information content. Whereas the theoretical limiting spot size is 0.75 nm (2), routine resolution checks showed minimum distances in the order 1.2 to 1.5 nm between corresponding intensity maxima in successive scans. This value is sufficient for structural studies of regular biological material to test the performance of STEM over high resolution CTEM.

Design and calibration of an IVEM for general 3-dimensional imaging of non-diffracting materials

1992 ◽  
Vol 50 (2) ◽  
pp. 1040-1041
Author(s):  
Neil Rowlands ◽  
Jeff Price ◽  
Michael Kersker ◽  
Seichi Suzuki ◽  
Steve Young ◽  
...  
Keyword(s):  
3D Imaging ◽  
Tomographic Reconstruction ◽  
Three Dimensional ◽  
3 Dimensional ◽  
3D Microstructure ◽  
Image Translation ◽  
Digital Correlation ◽  
On Line ◽  
Mechanical Stage ◽  
Projection Angle

Three-dimensional (3D) microstructure visualization on the electron microscope requires that the sample be tilted to different positions to collect a series of projections. This tilting should be performed rapidly for on-line stereo viewing and precisely for off-line tomographic reconstruction. Usually a projection series is collected using mechanical stage tilt alone. The stereo pairs must be viewed off-line and the 60 to 120 tomographic projections must be aligned with fiduciary markers or digital correlation methods. The delay in viewing stereo pairs and the alignment problems in tomographic reconstruction could be eliminated or improved by tilting the beam if such tilt could be accomplished without image translation.A microscope capable of beam tilt with simultaneous image shift to eliminate tilt-induced translation has been investigated for 3D imaging of thick (1 μm) biologic specimens. By tilting the beam above and through the specimen and bringing it back below the specimen, a brightfield image with a projection angle corresponding to the beam tilt angle can be recorded (Fig. 1a).

Software pattern recognition applied to nanodiffraction patterns from a STEM instrument

1986 ◽  
Vol 44 ◽  
pp. 694-695
Author(s):  
G.Y. Fan ◽  
J.M. Cowley
Keyword(s):  
Image Processing ◽  
Pattern Recognition ◽  
Computer Software ◽  
Processing System ◽  
Light Level ◽  
Host Computer ◽  
Low Light ◽  
Image Processing System ◽  
Recent Developments ◽  
On Line

In recent developments, the ASU HB5 has been modified so that the timing, positioning, and scanning of the finely focused electron probe can be entirely controlled by a host computer. This made the asynchronized handshake possible between the HB5 STEM and the image processing system which consists of host computer (PDP 11/34), DeAnza image processor (IP 5000) which is interfaced with a low-light level TV camera, array processor (AP 400) and various peripheral devices. This greatly facilitates the pattern recognition technique initiated by Monosmith and Cowley. Software called NANHB5 is under development which, instead of employing a set of photo-diodes to detect strong spots on a TV screen, uses various software techniques including on-line fast Fourier transform (FFT) to recognize patterns of greater complexity, taking advantage of the sophistication of our image processing system and the flexibility of computer software.

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