工矿自动化

Communication in Coal Mines of China and Its Future Development

GUO Cheng-wei, XU Wei, TANG Zhao-guang

2000, 26(2): 1-3.

<Abstract>(34)

Abstract:
Authors introduce us current status of mine communication and products widely applied in our country.3 stages of mine communication development of 2010 and related research work are also described.

Model KT14 Full Duplex and Honeycomb Mobile Communication System in Mine Use

HU Sui-ya

2000, 26(2): 4-5.

<Abstract>(71)

Abstract:
A totally new type of mobile communication system is introduced and described. The system, which is cheap in price, simple and easy in maintenance and suitable for the coal mine use in China, has made the direct dial for the full duplex mobile communication and the mobile phone underground in the coal mine actually realized.

Microcomputer based Detection of Short circuit Fault Between Stators of Asynchronous Motors

DONG Ai-hua, WANG Fu-zhong, GAO Ya

2000, 26(2): 6-7.

<Abstract>(45)

Abstract:
The authors describe the significance of detecting short circuit fault between three phase asynchronous motor stators,discuss the scheme for fault diagnosing.Hardware circuit for fault diagnosing is designed along with the block diagram for software design.

Methane Sensors with Zero Self adjustment

WANG Ru-lin, ZHAO Gang

2000, 26(2): 8-10.

<Abstract>(52)

Abstract:
Based on the theory research of gas detection, using the zero self adjustment theory to underground gas detectioin, this paper is mainly about the designing and exploiting of a brand new gas detection instrument with zero self adjustment. The main point in zero self adjustment is to reduce the sensor’s working current right under its working point by MUX switching after each certain period of time in order to stop its working procedure for a short time. In this way, we can simulate the normal zero adjustment in air by taking down the data of “zero” at this time and compensate the following data with this “zero”. The theory and the experiments of zero self adjustment used in this paper show the complete feasibility and the stable work performance.

Model KDK4 Mine Used Flameproof Motor Softstaft Controller

XU Zhong, ZHU Xiao-ping

2000, 26(2): 11-13.

<Abstract>(33)

Abstract:

Mathematical Model and Its Calculation of Dynamic Reliability for Mine Machinery

ZHONG Ying

2000, 26(2): 13-15.

<Abstract>(26)

Abstract:
Importance of dynamic reliability in studying mine machinery reliability is described.From the point of view of fuzzy mathematics,fuzziness is proven of time sequence technical status and feature information extracted for tests.Relevant mathematical model is established.On these basis,the author puts forward the method calculating dynamic reliability and fault rate of mine machinery,and demonstrates the practical value of fuzzy information.

Analysis in Accuracy of Electronic Weigher

YANG Xiao-li, CHEN Qing

2000, 26(2): 16-18.

<Abstract>(34)

Abstract:

Discussion in a Couple of Problems from Database to Data Warehouse

LI Jun-min, GONG Shang-fu

2000, 26(2): 19-20.

<Abstract>(21)

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Design of Fault Diagnostic Expertise System for Electrical Facilities in Power Plants

LI Jiang-li

2000, 26(2): 21-22.

<Abstract>(28)

Abstract:
The author introduces the function of fault diagnostic expertise system for power plants electrical facilities and describes the software design, specific requirement, function and task of the fault diagnostic expertise system.

Application of PLC in Electronic-controlled System for A.C Electro-hauled Shearer

QIU Jin-bo, LIU Zhen-jian, RUI Guo-hong, MA Shi-kui

2000, 26(2): 23-25.

<Abstract>(17)

Abstract:

Monitoring and Diagnosing Main Shaft Winder with CDMS System

CHENG Guang-zhen, TAO Jian-ping, WU Yuan-yi

2000, 26(2): 26-28.

<Abstract>(36)

Abstract:

Renovation of Control Device for Skip Loading

LIU Feng, ZHAO Feng-wu

2000, 26(2): 28-29.

<Abstract>(32)

Abstract:
Through the Analysis in problems existing in the previous control device for skip loading and renovation, a set of automatic control and counting device is designed which can achieves a better effect.

Application of Inter-mediate Frequency Power Supply in Coal Mine Cutter Bits Factory

TONG Ju

2000, 26(2): 30-30.

<Abstract>(44)

Abstract:

The Development and Application of Auto controlled and Management System Used for Coal sale Measure

MENG Xian-hua

2000, 26(2): 31-32.

<Abstract>(43)

Abstract:
This article introduces how to design and perform the auto controlled and management system used for coal sale measure, by means of integration in computer network technology, barcode technology and auto control technology. Based on the field of system practicing, the modified systems and performed plans are provided. It can also use for the similar demands of sale measure and management.

Process Management System for CIMS in Coal Preparation Plants

CHENG Jian, XU Shi-fan, GUO Xi-ji

2000, 26(2): 33-35.

<Abstract>(27)

Abstract:
Composition and functional structure of process management system is introduced detailedly from the point of view of system integration and using the CIMS in Nantun Coal Mine Preparation Plant as an example. System implementation is suggested in combination with specific development platform and integration platform.

Discussion in Software of CGW Methane Sensor

WANG Ping

2000, 26(2): 35-36.

<Abstract>(42)

Abstract:

Computer based Sound and Time Recording System Utilizing Novel Telephone Speech Card

QIAN Lu, HUO Zhen-long, WANG Sen-hua

2000, 26(2): 37-39.

<Abstract>(25)

Abstract:
The author introduces here a computer based sound and time recording system using PC of D & E Turbo Way telephone speech card and standard large hard disk capacity as the core, together with its software and hardware structure, system characteristic, performance and functions.

Development of Drawing Program for Mine Ventilation System Pla

WANG Du-xia, ZHOU Fu-bao, CHENG Yuan-guo

2000, 26(2): 39-41.

<Abstract>(29)

Abstract:

A Valve Leg Testing Stand with Digital Displays

JIANG Tao, WANG Lin-xing, ZHONG Xun, WU Zhu-sheng, CHEN Ya

2000, 26(2): 42-43.

<Abstract>(58)

Abstract:

Real-time Dynamic Monitoring System for Parameters of Mine Fan Air Volume

LU Yong-geng