2001 Vol. 27, No. 5

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Cover Catalogue
PC Control Algorithm and Implementation for the Braking System of Mine Hoist
LIU Chun-sheng
2001, 27(5): 1-3.
<Abstract>(49)
Abstract:
Combining the structure, task features of the braking system of mine hoist with present developing situation of PC, two kinds of achieving method of the braking system of mine hoist controlled by PC are put forward——the software and the hardware. Main technical key using the software achieving method is to determine PC control algorithm. This paper analyzes and calculates PC control algorithm for the braking system of a mine hoist in details. Finally, PC control algorithm for the braking system and its achieving methods are given.
Discussion on Developing Method of Universal Query Module of MIS with VB
ZHANG Qun-hui, WANG Jian-jun, GONG Shang-fu
2001, 27(5): 3-5.
<Abstract>(46)
Abstract:
Imformation query is one of the foundational functions in MIS. This paper deals with the design of universal query module and the method of realizing universal query in VB. The functions and interfaces that the query module must possess are discussed in details.
Design and Realization of Network Monitoring System in Coal Preparation Plant Based on C/S Structure
MA Xiao-ping, ZHANG Yu-fei
2001, 27(5): 6-8.
<Abstract>(46)
Abstract:
Monitoring scope can be extended and monitoring efficiency can be improved by using LAN to realize productive information monitoring. The principle of network monitoring system based on C/S structure is discussed and the application method is presented for a coal preparation plant.
Fuzzy Control for Jigger Discharge System
LI Ming, LEI Ru-hai, JI Wei, WANG Ning
2001, 27(5): 8-11.
<Abstract>(32)
Abstract:
This paper introduces the application of fuzzy control technology in jigger automatic discharge system, and discusses the design method of fuzzy controller. It also points out the implementation of fuzzy controller based on single chip computer and indicates that the controller has good control performances.
Fuzzy Control for Jigger Discharge System
LIU Jian-rong, LI Hong-qing, GE Wen-feng
2001, 27(5): 11-13.
<Abstract>(29)
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Design and Implementation of the Graphics Module in Mine Monitoring and Control System
AN Wei-peng, LI Chang-qing, ZHAO Jian-gui, NIE Kai
2001, 27(5): 13-14.
<Abstract>(37)
Abstract:
2001, 27(5): 15-16.
<Abstract>(32)
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To Add Fully Automation Add-on System to Railway Loading System Used in Coal Mine
WANG Dong, YOU Guo-qiang
2001, 27(5): 17-19.
<Abstract>(21)
Abstract:
Control System of Manless Duty for Underground Belt Conveyor Used in Coal Mine
WANG Jian-guo, LIU Jun-bo
2001, 27(5): 20-22.
<Abstract>(28)
Abstract:
A New Type Integrated Device of DC Insulation Monitoring and Earth Point Locating
LI Gang , CAI Xu
2001, 27(5): 22-24.
<Abstract>(26)
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The paper introduces a method of monitoring in real time for DC system insulation using asymmetrical bridge in normal mode, and founds a mathematical model for detecting insulation resistance. Integrated Device of DC Insulation Monitoring and Earth Point Locating Based on Microcomputer has been developed. The practical apply proved that the device provides with advantages such as working reliable and running accurate.
Position Indication Device of Coal Mine’s Hoist
LI Jing-min, LI Yi, ZHANG Hai-bo
2001, 27(5): 25-26.
<Abstract>(24)
Abstract:
The thesis introduces the logic electrical circuit of the hoist’s position indication device, analyzes the functions of Hall sensor, the principle of distinguishing direction for the hoist’s up and down and the reversible counter.
To Add Automatic Testing to Shears
FAN Zhong-mi
2001, 27(5): 27-28.
<Abstract>(42)
Abstract:
Application of Computer Network in Coal Sale Management Business
GU Jun , CHEN Zhi-guo , QIAN Jian-sheng , ZHANG Hong , ZHU Yi-cun
2001, 27(5): 29-30.
<Abstract>(41)
Abstract:
It’s necessary to build a communication network for enterprise to master its own management information in time and properly, and provide the foundation to further management decision making. Taking hardware, software, data collection, management, network security into account, the application software which adapt to coal enterprise has been developed according to the management mode of the coal enterprise.
Application of FIX DMACS Configurational Software of Centralized Movable-sieve Control System in Coal Preparation Plant
JI Wei, WANG Qi-ju
2001, 27(5): 31-32.
<Abstract>(42)
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New Technology OPC in the Field of Industrial Control
LV Peng-fei, HE Yao-yi
2001, 27(5): 33-34.
<Abstract>(47)
Abstract:
Testing Frequency Characteristic of Analytical Circuit Based on EWB Software
ZHENG Li-na
2001, 27(5): 35-36.
<Abstract>(28)
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Model ZJF-1 Power Cable Carrier Equipment and Its Application in Shear
RUI Guo-hong, QIU Jin-bo, HAN Bao-mi
2001, 27(5): 37-39.
<Abstract>(46)
Abstract:
The paper introduces the composition, working principle, FSK modulation technology of Model ZJF 1 Power Cable Carrier Equipment and application of PLD. In accordance with the using situation, the transform direction is given.
Control Method of CNC Cutting Machine Tool with Whirl Cutting Forch
ZHOU Hang-xia, HUANG Hong-yong
2001, 27(5): 39-40.
<Abstract>(21)
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A Kind of Simple and Useful Data Transmitting System
LI Zhong-sha
2001, 27(5): 41-42.
<Abstract>(31)
Abstract:
This paper introduces a kind of simple and reliable data transmitting system desigened by remote control CODEC. It can be served as transmitting measured data to surface from underground, then give transmitting rate calculating formula deduced from experiment.
Speech Cue and Warning System Realized by Single-chip Computer
SHI Bo, CHEN Zi-chu
2001, 27(5): 43-44.
<Abstract>(40)
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Looking at the Difference between the Home-made and Imported Switches
LIANG Zhen-yu
2001, 27(5): 45-46.
<Abstract>(27)
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Simple Analysis on Benefit of Mine Ventilator Controlled with Conversion Speed Regulator
CAI Lian-sheng
2001, 27(5): 46-47.
<Abstract>(38)
Abstract:

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