2005 Vol. 31, No. 4

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Cover Catalogue
A Two-way Remote Control Alarming System with the Functions of Self-check and Inquiry
LI Qing-wu, SHENG Hui-xing, WANG Jian-yong
2005, 31(4): 1-3.
<Abstract>(78)
Abstract:
For the disabled problem of alarm function of remote alarming system caused by failure or being broken of the system, a new remote alarming system was designed which can feedback information in two-way. The system is consisted of main receiver and monitoring extension, and the extension can send (alarm) signal to the receiver, the receiver also can inquiry the operation status of the extension. The system has functions of self-check and inquiry and so solves the difficult problem that the self-failure cannot be found easily.
Design of Mine Methane Sensor Based on DSP
JIANG Jian-ming, WANG Zheng-hong
2005, 31(4): 4-5.
<Abstract>(48)
Abstract:
Aimed at the disadvantages of low precision, serious zero-drift and short adjustment cycle of methane sensor used in mine, we adopted the DSP microprocessor to update the sensor based on 8 bits MCU and the problem was solved commendably.
Study on the Security of Information Issuing of Monitoring and Control System for Mine Safety and Productio
HU Yan-jun, MA Xiao-ping
2005, 31(4): 6-8.
<Abstract>(45)
Abstract:
The paper firstly analyzed the security situation of information issuing of monitoring and control system of mine safety and production. Then the potential problems in these systems were pointed out. Finally, the solution scheme which has been used in several mines was presented.
Study on the Algorithm of Storage and Compression for Historical Data of Mine Safety and Monitoring and Control System
HUA Gang, ZHU Er-li, YAN Jun-hua
2005, 31(4): 8-10.
<Abstract>(43)
Abstract:
On the basis of analysis of the characteristics of historical data and monitoring parameters in mine safety and monitoring and control system, a new data storage model based on database technology and a new algorithm of data compression based on error were put forward. The performance of the algorithm was analyzed in detail. Simulating by Matlab, the result is satisfied.
The Expert System of Fault Diagnosis of Hydraulic System
LI Xiao-qing, ZHANG Wen-xiang
2005, 31(4): 11-13.
<Abstract>(62)
Abstract:
The construction and development method of expert system of fault diagnosis of hydraulic system were introduced in this paper. The man-machine interface, establishing of knowledge base and the constitution inference mechanism were described in detail.
Research of Mine Monitoring and Control Software Based on COM Technology
LV Peng-fei
2005, 31(4): 13-16.
<Abstract>(73)
Abstract:
The paper mainly discussed how to apply the COM technology in mine monitoring and control software, and described the implementation method of correlative technology in detail.
Application of Single-chip Microcomputer in Soft Start of AC Motor
ZHANG Xue-ping
2005, 31(4): 17-19.
<Abstract>(37)
Abstract:
Research on Error Correction Technology of VoD System of Distributed and Multi-server structure
HUO Xiao-li, JIA Xiang-zhi, TANG Wu-xi
2005, 31(4): 20-22.
<Abstract>(30)
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Study on the PWM Control Method
XU Nan-yan, HAO Ji-fei, XING Qing-qing
2005, 31(4): 22-25.
<Abstract>(2900)
Abstract:
Development of Ultrasonic Water Level of Statical Force
YANG Xue-cun, HOU Yuan-bi
2005, 31(4): 25-27.
<Abstract>(71)
Abstract:
The Security Study of Coal Mine Information System Based on Computer Network
PAN Yu
2005, 31(4): 28-31.
<Abstract>(53)
Abstract:
This paper analysed the existing status of the network security of coal mine information system and discussed the possible meeting attacks of the system of computer network in coal mine, and gave out the countermeasure to enhance the security of the coal mine information system.
Research of Underground Alarming System of Temperature and Humidity Based on Zero-cross Modulation Technology
CHEN Yong-li, WANG Chang-long, LI De-liang
2005, 31(4): 31-33.
<Abstract>(51)
Abstract:
The zero-cross modulation technology uses exsisting power distribution network as transmition carrier. Because it needn’t increase additional system equipments, it is low-cost. In this paper, the design of alarming system of temperature and humidity based on zero-cross modulation technology and the constitution were introduced. By field application, it made chear that the design is in reason and the reliability is high.
Design of Automatic Coal Blending System Based on Expert and PID Control
QI Mei-xing~(, 2), ZHANG Yu~
2005, 31(4): 34-36.
<Abstract>(46)
Abstract:
According to the character of coal blending such as multi-variable, large lag, nonlinearity and modeless, a system of automatic coal blending based on Ethernet structure was designed in this paper. The method that combined expert system with PID was applied in the system and proved effective.
Phase-to-ground Protection Device in Ineffectively Grounding System Based on 80C196KB
ZI Xing-jian~(, 2), WANG Jian-ping~
2005, 31(4): 36-38.
<Abstract>(34)
Abstract:
This paper introduced a phase-to-ground protection device in ineffectively grounding system based on 80C196KB single-chip-microcomputer, analyzed its design idea, and described its sofetware and anti-interference design.
The Selection of Frequency Groups of Mine-used Wireless Communication System
CAO Yu-hong
2005, 31(4): 38-40.
<Abstract>(72)
Abstract:
On the basis of study of the effection factors for communication frequencies caused by underground geology condition and production condition, a relatively good frequency group of wireless communication transmission in underground was defined, and the distributing scheme of base-station in underground cellular communication was offered.
Design of Management System of Coal Transportation and Sale for Coal Mine
CHEN Shi-wei~, QU Yong-hua~
2005, 31(4): 41-42.
<Abstract>(26)
Abstract:
For the weighbridge used in coal mine is lower precision and is interfered by people easily, a management system of coal transportation and sale was designed in the paper. The system has functions of automatic weighing with sensors, selectable items, automatic printing bills, historic data storage and statistic, which avoids grey loss in original manual operation. Its software and hardware, functions, characters and applying result were introduced in this paper.
Design and Implementation of Mining Linkage Management System of Coal Mine
SHEN Yan-guang, DONG Chuan-tong, HE Hong-jiang, HAO Zhong-xiao, CHEN Xiang-guo
2005, 31(4): 43-44.
<Abstract>(20)
Abstract:
Design of Network Control System of Aluminium Electrolysis Based on Field Bus
WEI Hang, YUAN Yan, ZHANG Tai-sha
2005, 31(4): 45-47.
<Abstract>(20)
Abstract:
Analysis of Automatic Lifting Technology of Shearer Drum
LI Chun-hua, LIU Chun-sheng
2005, 31(4): 48-51.
<Abstract>(28)
Abstract:
Automatic lifting of shearer drum is one of key techniques of coal face automation, and its core is identification technique of coal and rock interface. As the matter stands, the combined identification gives first place to the technique of memory program-control with intelligent, and coal-rock interface sensor is regarded as auxiliary. It is supplemental inferior stability and reliability and accuracy to single sensor identification, avoiding memory program-control too dependent human to set off hysteresis and random phenomenon of sampling. This method suits to powerful automatic shearer.
Analysis and Design of Coal Mine Measuring System
REN Yong-chang~, HAN Yu-xin~, WANG Jin-quan~
2005, 31(4): 51-54.
<Abstract>(83)
Abstract:
The paper pointed out the irregularity of decentralized measuring management by handwork,designed a measuring management system by network and gave out the method of automatic collecting data with measuring apparatus.It mainly described the methods of collecting data through computer serial interface following the CDT Motion Agreement and reverting of electricity value.
Application of Bluetooth technology in Wireless Communication for Traveling Crane
ZHU Xiao-dong, Peng Rui-yong
2005, 31(4): 54-56.
<Abstract>(40)
Abstract:
The article introduced the basic concept and characteristics of Bluetooth technology and discussed the method of making use of Bluetooth mobile phone and wireless connection of computer to realize the communication for traveling crane.
A Controller for Limiting Frequent Start in Underground Transportation System
LI Xu-guang, BU Hong
2005, 31(4): 56-57.
<Abstract>(32)
Abstract:
Design of Serial Communication between CPU Interface and Industrial Control Computer of Dispatching Table
ZHANG Chang-se
2005, 31(4): 58-60.
<Abstract>(83)
Abstract:
Development of Integrated Protection Device of Lighting Signal with Long Distance
ZHANG Chuan-shu, WU Hao
2005, 31(4): 61-63.
<Abstract>(23)
Abstract:
Microcomputer Control System for Materials Blending
ZHOU Ke-liang, XIAO Qing
2005, 31(4): 63-64.
<Abstract>(34)
Abstract:
The materials blending system is being used widely in metallurgy, building materials, chemical engineering, etc. This paper introduced a automatic control system for materials blending by weightlessness steelyard based on hardware such as industry controller, industry control card, intelligence (appearance), sensor and based on software such as Visual Basic 6.0, Access, etc.
Design and Implementation of Incoming Phone Display for MD110 Exchanger
PI Yu
2005, 31(4): 65-66.
<Abstract>(52)
Abstract:
A New Way to Realize Dynamic Scanning of LED Small Strip Scree
LIANG Rui~(, 2), WANG Chong-lin~, GUAN Ting-wei~
2005, 31(4): 67-69.
<Abstract>(30)
Abstract:
In this paper, a modern display system of LED small strip screen controlled by MCU was introduced. This system has some characteristics such as simple-structure, low-costing, steady-capacity, easy-using, the better capacity of suiting the environment. By the serial communication with PC, the Just-in-time modification of display content and rolling model can be realized.
Implementation of the Circuits of Frequency-multiplier and Phasedemodulation of Encoder in FPGA
ZHANG Bao-quan, YANG Shi-xing, ZHAO Yong-xiu
2005, 31(4): 69-71.
<Abstract>(32)
Abstract:
VHDL is the best hardware description language in the field of system design.Based-on the features of photoelectric encoder signal used in feedback measurement of position and velocity, the method by which the circuits of frequency-multiplier and phasedemodulation is designed in the FPGA by VHDL was introduced in this paper. It has improved resolving power of coder and realized signal detection and position servo control of high accurate and high stable.
Application of Fuji's IPM in Speed-regulating by Frequency-converting of Automatic Door
MA Gao-yin, WANG Fu-zhong, ZHENG Zheng
2005, 31(4): 72-73.
<Abstract>(22)
Abstract:
Serial Port Debugging and Its Data Analysis Based on LABVIEW
MA Cao-yuan, GUO Shuang-qiang, LI Guo-xi
2005, 31(4): 74-76.
<Abstract>(41)
Abstract:
In this paper, the graphical programming language LABVIEW was introduced. The main functions and design ideas of the multi-function serial port debugging software based on LABVIEW were presented. Furthermore, module of data analysis of the serial port extended from the software was introduced. Through applying, it has proved that the software of serial port debugging and data analysis based on LABVIEW has several good characters such as powerful functions, easy for use, good transplant ability and good extensibility.
Measurement of Content of Magnetic Medium with Sine Wave Excitatio
QIU Li-cun, MENG Ru, LIU Hai-ying
2005, 31(4): 76-77.
<Abstract>(42)
Abstract:

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