工矿自动化

Development and Implementation of Designing System of Coal Seam Infusion Parameter Based on VC Environment

WANG Qing-song~, SUN Jin-hua~, JIN Long-zhe~

2004, 30(5): 1-4.

<Abstract>(23)

Abstract:
Guided by the thought of object-oriented, the traits of coal seam water infusion were analyzed. The system was designed in VC environment which was aided by the analysis on the system’s structure and function. The inner arithmetic of calculating module was mainly based on the respective requirement of the di-(fferent) infusion types. The application of coal seam water infusion designing system can instead of the man’s work in calculating the infusion parameters, so that alleviate the man’s work and easy in management of coal seam infusion.

Fault Diagnosis of Giant Asynchronous Motor Based on Neural Network Expert System

HE Yi, DONG Ai-hua, YAN Shu-feng

2004, 30(5): 4-7.

<Abstract>(38)

Abstract:
According to the complicated corresponding relationships between fault symptoms and fault reasons when giant asynchronous motor occurring fault, a new fault diagnosis method of motor using neural network expert system was presented. The expert system works as the shell of neural network, making full use of characteristics of expert system and neural network individual. The paper introduced the composition, function, algorithm and its realization of the system. The algorithm also emulated neural network toolbox with MATLAB. The results showed that the algorithm is feasible and the diagnosis accuracy is improved.

Application of Neural Network in Cement Raw Materials Blending System

YANG Shu-yan, GAO Wei-wei, JIANG Pei-gang

2004, 30(5): 7-10.

<Abstract>(29)

Abstract:
The cement raw materials blending system is very complex for its multi-variable, long time delay and nonlinear characters. It is difficult to set up an exact mathematic model with conventional optimum methods. Artificial neural Networks are able to give new solutions to such problems due to their capacities of nonlinear mapping, character take-out and error tolerance. According to technical requirements of cement raw materials blending, this paper applied neural network model based on BP algorithm to pre-estimate the quality of cement, to realize the optimization of cement raw materials.

Implementation of Image Compression of Monitoring and Control System in Mine Based on Wavelet Analysis

TANG Yong-li, LI Chang-qing, YU Jin-xia

2004, 30(5): 10-12.

<Abstract>(22)

Abstract:
Aiming at the problem of expending image in monitoring and control system of safety and production in mine, the paper presented a general system structure of image compression using wavelet analysis, and compress and save image data collected. Using MATLAB language to program procedure in order to achieve (image) compression, including its methods and steps.

Getting Technology of Bit Alignment Signal of Phase-locked Loop Based on CPLD

DI Jing, ZHANG Shen, ZHUANG Qian-qi, FENG Xiao-long, ZHANG Hong-mei

2004, 30(5): 12-14.

<Abstract>(34)

Abstract:
The technology of getting the bit alignment signal of phase-locked loop is a very important practical problem in communications system. This paper introduced a system to pick up the bit alignment signal of digital phase-locked loop which is programmed in AHDL language and its CPU is CPLD (Complicated Programmable Logic Device). Using this technology, the system will be more stable and credible in its configuration design and function realization.

Research and Implementation of Motion Estimation Technology Based on H.264

ZHU Jin-xiu, MIAO Hong-xia

2004, 30(5): 15-17.

<Abstract>(15)

Abstract:
On the basis of research of the motion estimation algorithms in H.264 standard, the software coder based on H.264 motion estimation was designed. The result of experiment showed that the software coder can markedly make compression ratio, signal noise ratio more effective while coding speed litter slowly. It has practical value in video monitoring system of mine.

Application Research of Mine Communication System Based on DSP Technology

WANG Si-qi~, YAO Shan-hua~

2004, 30(5): 17-19.

<Abstract>(12)

Abstract:
Main problems of coal mine communication are feeble anti-interference ability and poor speech quality. DSP technology is widely applied in electron field owing to its virtue of precision and agility and good anti-interference and high reliability especially in mobile communication. This paper discussed applications of DSP in coal mine mobile communication.

A Special Applied Switch Power Based on BUCK Transformatio

DENG Xiao-xiang, YAN Da-xi

2004, 30(5): 19-21.

<Abstract>(46)

Abstract:
This paper introduced a current-controlling pulse width-modulating switch power, which took BUCK transformation as the main circuit, and took UC1842 as the core. And analyzed its principle and carried on experiment, then used it in the field. The result of practice showed that this switch power has many advantages, such as fast frequency response, high adjusting rate of voltage and high adjusting rate of load, stable output of voltage and small ripple. It is a practical switch power with reliable performance.

Voltage-adjusted Saving Energy Device of SCR Based on Single-chip Microcomputer

XING Zhe

2004, 30(5): 22-24.

<Abstract>(13)

Abstract:
In this paper, a kind of SCR saving energy device which adopts power-factor phase and stator cu-rrent as control variable and realized by 8098 single-chip microcomputer was instroduced. Experiments and app-lication showed that certain effect of saving energy can be obtained for the motor that always operating in lower load or with different load fators.

Improved Design of Data Collection System of ZXB Automatic Arc-suppressing Device

CHEN Zhong-ren~, DONG Hao-bin~, WU Wei-ning~

2004, 30(5): 25-27.

<Abstract>(31)

Abstract:
When improving the controller of automatic arc-suppressing device, the author redesigned data collection system based on AD1674 converter in order to remove defect that the old system cannot measure accurately and get steady output data and suppress interference very well. Improved data collection system can meet requirement of wide range input signal of automatic arc-suppressing device and its experimental operation and field showed that it has higher accuracy of measurement and better behavior than the old data collection system.

Flameproof Movable Substation with Multi-voltage and Its Applicatio

MA Zi-mei, ZHANG Yong-hong

2004, 30(5): 28-29.

<Abstract>(28)

Abstract:

Intelligent Magnetic Flowmeter and Its Configuratio

ZHANG Yu-jie~, ZHAO Lan-sheng~, DU Qiu-Li~

2004, 30(5): 29-31.

<Abstract>(61)

Abstract:
In this paper, the working principle and installation technique of magnetic flowmeter, the using and configuration of intelligent terminal were introduced.

Design of Cascade Monitoring System of Liquidometer-flow of Boiler Based on MCGS

WU Li

2004, 30(5): 32-33.

<Abstract>(31)

Abstract:
A monitoring system for liquidometer-flow of boiler based on intelligent instrument AI808 was expounded. The configuration software MCGS was used to implement the real-time supervision and configuration of the spot by upper computer.

Hardware Design of a Prepaid Single-phase Electronic Watt-hour Meter

LIU Qun-po, WANG Fu-zhong, LIU Shang-zheng

2004, 30(5): 34-37.

<Abstract>(41)

Abstract:
A kind of technique of design of a prepaid single-phase electronic watt-hour meter was presented. The working principle, hardware constitutes and functions were mainly discussed. The hardware circuit was given. Application on spot indicated that the watt-hour meter has high anti-interference, low cost, safe and simple to use. So it will be widely used.

Data Collection and Alarm System of Gas Based on Sunplus Single-chip Microcomputer

LI Zhan-sheng, HAO Guo-fa, FANG Kang-ling, FU Xu

2004, 30(5): 37-39.

<Abstract>(19)

Abstract:
In this paper a data collection and alarm system of gas which used sunplus single-chip microcomputer was introduced. This system has funciotn of speech editing and playing. The experimental results showed that the system has the performance of simple implementation, flexible operation and reliable running.

Application of Linux in Ditributed Monitoring and Control System of Equipment for Coal Mine Surface

PAN Yu, XUE Ti-hong

2004, 30(5): 39-41.

<Abstract>(8)

Abstract:

Development and Application of Industry Control Software Based on Component Technology

ZHU Wu-guang, ZHOU Bin, LI Wen-yin, HE Jin-xin, TONG Zhi-cheng

2004, 30(5): 42-44.

<Abstract>(12)

Abstract:
With the development of industry technology, the requirement for scales and functions of industry control software is increasing. Design and develop industry control software with component technology can make the software has better open system, generality, adaptability. COM component technology of Microsoft was introduced in this paper. The correlation technology using it to develop industry control software taking pressure control system of coke oven as example were discussed.

Discussion on Rectifying Project of Magnetizing Device of KLF11 Synchronous Motor

WANG Xiao-chen, YANG Gong-xun, SUN Feng-xiang

2004, 30(5): 45-46.

<Abstract>(13)

Abstract:

Principle and Application of a Digital Signal Processor ADSP-2181

WANG Yu-bin~, CAO Zhi-wei~, CAO Le-min~

2004, 30(5): 47-49.

<Abstract>(33)

Abstract:
The structure of Software and hardware and fundamental characteristics of a digital signal proce-(ssor) ADSP-2181 were briefly introduced. A data collection and processing system which uses ADSP-2181 as core was designed. The merit and error of this system were discussed.

Implementation of Embedded System of Micro programmable Logic Controller

LIN Shan-ming, LIU Yong-fu, ZHU Chang-ping, ZHU Jiang-tu

2004, 30(5): 49-51.

<Abstract>(49)

Abstract:

Application of Information Management System Based on Induction IC Card

WANG Feng, ZHOU Pei-hua, HOU Hai-jun, FENG Xi-ju

2004, 30(5): 52-53.

<Abstract>(19)

Abstract:

Hardware Design of the Control System of Carburizing Furnace Based on Single-chip Microcomputer

LIU Jing-ya