2002 Vol. 28, No. 5

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Cover Catalogue
Using Single-chip Microcomputer to Control Modem to Realize Long-distance Measurement for Flow
WANG Ping, ZHAN Tong, XU Xiao-hui
2002, 28(5): 1-2.
<Abstract>(27)
Abstract:
This paper introduced the constitute of the long distance flow measuring system, gave the hardware diagram of modem controlled by single chip microcomputer, the communication agreement between single chip microcomputer and PC, software flowdiagram and some program lists. The design is used for long distance flow measuring system of irrigation ditch. It also can be used in other long distance automation measuring system.
Research on Mine Used Hybrid Power Filter Based on Harmonic Voltage Detectio
LI Shao-fei , HAN Tong-shun , JIANG Jian-guo , DAI Peng
2002, 28(5): 3-5.
<Abstract>(5)
Abstract:
Hybrid power filter is consist of passive and active filters linked by different methods. In this paper, the configuration of hybrid filter suited to coal mines is selected by Characteritics of harmonic source in mine power network. A kind of method which calculates harmonic current using DSP with harmonic voltage detection is proposed and circuit mode is constituted by the method. Excellent harmonic suppression characteristics of the hybrid filter are shown by the simulation results, and the rationality of the design thought of the hybrid filter and the validity of the conclusions are proved.
Research on the Vibration and Temperature Monitoring and Control System in Fault Diagnosis
WANG Chang-quan , LING Wei-ye
2002, 28(5): 6-7.
<Abstract>(24)
Abstract:
In this paper, the methods of establishing fault diagnosis about high speed rotating machinery were discussed by using information confluent technology of vibration information and temperature data in the temperature monitoring and control system. Based on this, information database of fault diagnosis of rotating machinery was further founded by means of the relationship between temperature changes and development of material disfigurement.
Design of a New Type Controller for AC Servo System
PENG Wei-fa, ZHAO Jin, YANG Lu, WAN Shu-yu
2002, 28(5): 8-10.
<Abstract>(23)
Abstract:
The thesis anlyses the relation between position adjuster’s proportion coefficient and system dynamic and static performance in different input signal. Thereout, a single nerve cell controller which has self-study function is designed. The simulation results and expermentation show that the controller has good prospects.
Using Full Digital DC Driver to Realize Cascade Speed Regulating of Asynchronous Motors
ZHOU Jian-hong
2002, 28(5): 10-12.
<Abstract>(22)
Abstract:
A new method of cascade speed regulating of asynchronous motors using full digital DC driver was introduced in this paper. The working principle was analyzed, the schematic diagram of hardware and the result of experiment were given.
Distributed Control System of Belt Conveyor Used in Coal Mine
MA Yong, BAO Hai-yong, WANG Ju
2002, 28(5): 13-15.
<Abstract>(23)
Abstract:
This paper introduced a kind of distributed control system of belt conveyor used in coal mine, analyzed its composition, working principle and main function. It can control the multi conveyor transportation system in site or remotely.
Development of Automatic Control SCR Power Supply for Dynamic Braking
QUAN Ji-na
2002, 28(5): 15-16.
<Abstract>(13)
Abstract:
The paper introduced the circuit structure, working principle of improved power supply for dynamic braking. The power run steadily, and its brake function was improved apparently, and satisfied with require of safety in production of coal mine.
Development of Low-voltage and Digital Frequency Converter
LIU Wei
2002, 28(5): 17-18.
<Abstract>(21)
Abstract:
Model SZJ-D2 Test Bed of Gummed Tube
YANG Jing, JIANG Shi-wen, ZHU Yin-fe
2002, 28(5): 19-19.
<Abstract>(27)
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Application of Industrial Control Computer in Self-service Petrol Control System
LIU Hui-jun, WU Kai-xing
2002, 28(5): 20-22.
<Abstract>(23)
Abstract:
A self service petrol control system that is efficient and reliable is introduced in the paper. The system’s key is industrial control computer STD 5055,its main device is control plate which uses small and low priced single chip computers 2051. It is convenient and reliable in use.
The Control System Based on PROFIBUS-DP Network
ZHU Hua
2002, 28(5): 22-23.
<Abstract>(48)
Abstract:
An architecture of control system based on PROFIBUS DP network was presented in this paper. The main characteristics of PROFIBUS DP and three layer network architectures of cold mill system’s automation system were described.
Analysis of Existing Problems of Hydraulic Hoist and Its Solution Scheme
YE Xiao-yang
2002, 28(5): 23-26.
<Abstract>(36)
Abstract:
Through analyzing the existing problems of hydraulic hoist, such as the location accuracy, comfort and compatibility of driving and braking, points out the automatic computer control is the most important cause to realize hydraulic hoist for shaft.
Circuit Design of a High-voltage Generator of Digital Measuring Instrument for Insulation Resistance
ZHANG Jin-bo, LI Zhi-jin, KE Xiao-gan, CHEN Xiao-gang
2002, 28(5): 27-28.
<Abstract>(18)
Abstract:
This paper introduced the composition and working principle of a kind of digital measuring instrument for insulation resistance . Append with instance, direct current high voltage generator circuit and automatic measure scale circuit are primarily introduced.
Design of Service Hoist Signal System Based on Omron C200
WANG Jun, LIU Jia, LEI Ru-hai
2002, 28(5): 28-30.
<Abstract>(22)
Abstract:
PLC Control System of AC Hoist Based on TKD Control Principle
YAO Fu-hai, SONG Chang-xi, LIU Yong-ge
2002, 28(5): 30-31.
<Abstract>(26)
Abstract:
Automation System of Water Pump Station and Its Applicatio
DU Jing-yi
2002, 28(5): 32-33.
<Abstract>(45)
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PLC Communication Technology and Its Applicaito
GUO Yi-nan, CHENG Jian, TAN De-jia
2002, 28(5): 34-35.
<Abstract>(26)
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A Method of Communication between Single-chip Microcomputers in the Same Control Module
Tao An-li, Wang Xia, Guo Hong-li
2002, 28(5): 36-37.
<Abstract>(36)
Abstract:
The paper presents a method of communication between single chip microcomputers in the same industrial control module. It has characteristics of simple circuit, needing few interface lines, high reliability and can perform duplex communication at high speed.
Analysis and Processing of Grounding Fault of 35kV Lines in Yangquan Coal Group
BO Xin-quan , LI Zhuang-he
2002, 28(5): 37-38.
<Abstract>(25)
Abstract:
The paper analyses the cause of grounding fault of 35kV lines in Yangquan coal group, and gets rid of grounding fault by using the method of fixing capacitance.
Design of CAD System Database of Rotary Fluid Sealing Pressure Joint
Fan Yong-fa , Yang Ze-min
2002, 28(5): 39-41.
<Abstract>(6)
Abstract:
The paper introduced the design of CAD system database management system for the rotary fluid sealing pressure joint by means of Access.
Revision of the Requirements of Monitoring and Control Equipments for Ventilation Safety and Configuration in 2001 Version of "Safety Regulations in Coal Mine"
SUN Ji-ping
2002, 28(5): 41-44.
<Abstract>(19)
Abstract:

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