工矿自动化

Study of Method of Fault Diagnosis of Double Local-fans System in High-gas Mine

BAI Yun, HOU Yuan-bi

2007, 33(1): 1-5.

<Abstract>(13)

Abstract:
Aiming at the existing method of fault diagnosis and its limitations,a model of expert(system) of fault diagnosis based on rough set and neural network was put forward in the paper,which was used to diagnose fault of double local-fans system in high-gas mine.The structure and the design of each functional model of the expert system of fault diagnosis of double local-fans in high-gas mine based on rough set and neural network were introduced stressly.The key technologies of the model of knowledge acquirement and repository of neural network were discussed,and the simulation result of the system was given in detail.

2007, 33(1): 5-8.

<Abstract>(15)

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Study of Test System for Safety Performance of Hoister Based on USB Interface

LI Wen-hong, SUN Yan-liang, CHEN Song-bai

2007, 33(1): 9-11.

<Abstract>(13)

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Study of Nonlinear Simulation and Modeling of SR Motor

TANG Zhao-hui, ZHANG Xiao-xing, YU Shou-yi

2007, 33(1): 12-14.

<Abstract>(19)

Abstract:
Because the construction and operation principle of the switched reluctance(SR) motor is very special,analysis and design of its control system are more difficult than the other motors.In this(paper),a nonlinear simulation model of speed regulating system of a four-phase(8/6) SR motor was established based on Matlab 7.0/Simulink.The result of simulation showed the real performances of the SR(motor) and proved the model is effective and feasible.

Development of New Intelligent Controller Based on the Communication of CAN Bus

CHEN Guo-jun, ZENG Qing-jun, HUANG Qiao-liang

2007, 33(1): 15-18.

<Abstract>(19)

Abstract:
A new intelligent controller for low-voltage breaker based on TMS320LF2407A DSP was(introduced) in the paper,and the design and development of monitoring and control system for the upper computer based on intelligent CAN interface card were presented.The design of hardware and software of the monitoring and control system were expounded.The design of hardware and software of CAN communication model of the intelligent controller,the monitorinig software of the upper computer were also(introduced.) The results of industrial tests showed that the controller has high reliability.It can be widely applied.

Development of Monitoring System of Electric Parameters in Enterprise's Power Plant Providing for Oneself

LAI Zhao-sen, LUO An, TANG Jie, LIU Yao

2007, 33(1): 19-22.

<Abstract>(6)

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Research of Performance Optimization for Network Control System

CHEN Hui-ying~(, 2)

2007, 33(1): 23-26.

<Abstract>(22)

Abstract:
NCS is network-based distributed control system.Combined with network scheduling and system control,a optimized performance model of NCS under the condition of network schedulability and(system) stability was proposed in this paper.Simuliation was made with real-time simulation software(packet) TrueTime based on Matlab/Simulink.The simulation results showed that the method not only(enhanced) the(performance) of the control system,but also optimized the network scheduling and improved the network efficiency.

Study of a Half-bridge Converter of Single-stage PFC

LIU Wen-yan~, KAN Quan-fu~

2007, 33(1): 27-29.

<Abstract>(14)

Abstract:
The paper discussed a half-bridge converter of single-stage PFC with ZVZCS.By the application of suitable selection of the circuit parameters,this converter could work as the operation mode of soft switch in a very high efficiency,and keep the simple topology as well.The working principle was(explained) and analyzed in detail,and the correlative design parameters were provided too.The simulation experiment by Matlab showed that the working principle of the converter is feasible.

Design of Mine Monitoring System Based on Embedded Web Sensors

LEI Zhi-xiang, HUANG Xiao-ya

2007, 33(1): 30-33.

<Abstract>(16)

Abstract:
A design method of real-time monitoring system for mine safety based on Web was introduced in the paper.The method applied TCP/IP protocol of W3100A chip to construct embedded intelligent Web sensor,used sensor to collect local environment parameters and transmitted the parameters to moni-(toring) Browser by local Ethernet interface,so as to realize real-time monitoring for environment parameters of mine and link the system into Internet,the remote accessing for environment parameter of mine was realized.

Design of Driver-component of Absolute Equipment of Mine Monitoring and Control System Based on MCGS

ZHOU Lei, HUA Gang

2007, 33(1): 34-37.

<Abstract>(43)

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Hardware Design of Control System of Belt Conveyor Driven by Multi-motor Based on PLC

WANG Fu-zhong~, WANG Xiao-dan~, WANG Shan~

2007, 33(1): 37-40.

<Abstract>(30)

Abstract:
In the basis of analysis of the working principle and control demand of belt conveyor(driven) by multi-motor,a control system of belt conveyor driven by multi-motor based on PLC was designed in the paper.The hardware configuration and control scheme,the selection of sensors and actuators of thecontrol system were introduced in(detail.)And the technological problems such as(signal’s) security(insula-) tion,starting and flame-proof of high-power valve were solved.The practical experiment showed that the system has characteristics such as safe reliability,flexible use and powerful functions.

Study of Issuing Technology of Real-time Information of Coal Mine Integrated Automation System

JIA Bei-bei

2007, 33(1): 41-44.

<Abstract>(16)

Abstract:
For coal mine safety in production and information management,it is necessary to issue the information of coal mine integrated monitoring system on Intranet in real-time.According to the charac-(teristics) of coal mine information,an issuing method of real-time information of coal mine integrated monitoring system was put forward in the paper.The OPC information collection,memory real-time database,XML and FLASH techniques were used in the issuing method.The experiment showed that the dynamic characteristic of issuing information on Intranet was synchronized with the information of actual monitoring system.

Monitoring and Control System of Belt Underground Based on PROFIBUS-DP

HUANG Jiang-ping

2007, 33(1): 44-46.

<Abstract>(30)

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Development of Intelligent Ultrasonic Material Level Meter in Monitoring System of Material Level for Coal Bunker

SHEN Zhao-zhen, DING Bao-hua, GUAN Lian-ju

2007, 33(1): 47-49.

<Abstract>(25)

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Application of Signal Fusion Technology in Alarming System for Coal Mine

LI Ye-gang~, LI Ye-de~

2007, 33(1): 50-53.

<Abstract>(17)

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The signal transmission technology of multi-channel sensor and its implementation method which has characteristics such as good compatibility,wide universality and low cost were studied in the(paper.) The signals of multi-channel sensor at measuring spot were processed and translated by signal(encoding) technology to fuse into a baseband signal and then the signal was transmitted directly or in(frequency)-band mode.The technology improved the signal transmission of alarming system for coal mine safety at present.

Study of Communication Protocol of Monitoring and Control System for Mine Safety in Productio

LIU Jia-lei, LI Chang-qing

2007, 33(1): 54-57.

<Abstract>(22)

Abstract:
The paper analyzed characteristics of RS485 communication protocol adopted extensively at present in monitoring and control system for mine safety in production.Aiming at this protocol’s limitation,it put forward CAN communication protocol which is better than RS485.And on the basis of original monitoring and control system for mine safety in production,the paper put forward a design scheme of(monitoring) and control system for mine safety in production adopting CAN communication protocol,and(expounded) the application of CAN communication protocol.

Study of Principle of Selective Leakage Protection of Zero Sequence DC of Low-voltage Power Network Underground and Its Implementatio

LI Bin, YUAN Zhen-hai

2007, 33(1): 57-59.

<Abstract>(14)

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Precise Measurement of Ultrasonic Signal Based on MSP430 Single-ship Microcomputer

CAO Xiao-hua, YANG Yin-bao, YIN Zhi-tia

2007, 33(1): 60-62.

<Abstract>(24)

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Centralized and Decentralized Control of Mine Gas Sensor System

JIANG Jian-ming, WANG Zheng-hong

2007, 33(1): 62-64.

<Abstract>(17)

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Design of Mine-used Carbon Monoxide Sensor

LI Jun-hong, CUI Yan, LI Chang-qing

2007, 33(1): 65-67.

<Abstract>(27)

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Design of Gas Detecting Annunciator Based on ATmega128L

WU Yuan-zhong, HU Gang

2007, 33(1): 68-70.

<Abstract>(10)

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Design of Mine-used Isolation Converter with Low-power Consuming and Serial Communication Based on MSP430

Zhang Li-juan, Li Zhi-jun, Ren Yi

2007, 33(1): 71-74.

<Abstract>(5)

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Design of Mine-used Isolation Converter with Low-power Consuming and Serial Communication Based on MSP430

ZHANG Li-juan~, LI Zhi-jun~, REN Yi~

2007, 33(1): 71-74.

<Abstract>(24)

Abstract:
In order to solve the serial communication problem between RS485 and RS232 serial interface and the isolation of RS485 signals in the monitoring system for coal mines,a designing scheme of a kind of mine-used isolation converter with low-power consuming and serial communication based on MSP430 was put forward.The functions and the(design) of hardware and software of the converter were(introduced) in detail.

Design of Main Control Unit of Mine-used Assembled Switch

HUANG Jing-bo, MU Long-Hua

2007, 33(1): 74-77.

<Abstract>(20)

Abstract:
According to the requirement of production in coal mine,an assembled switch based on AVR single-chip microcomputer was designed.Its main functions and control mode were introduced summarily.The design of hardware and software of control unit of the upper-computer were proposed.The practical application proved that this kind of assembled switch was helpful to enhance the security of production in coal mine and had high reliability and flexibility.

Study of Monitoring System of Mine Hoist and Its Implementatio

ZHANG Xiu-ping

2007, 33(1): 78-79.

<Abstract>(15)

Abstract:
A monitoring system of mine hoist was designed by using laser ranging principle,single-chip microcomputer and its around circuit and assembly language.The system could real-time monitor hoist’s runing state and forecast its fault.

Design of Soft-start Control System for Pumps and Analysis of Energy-saving by voltage Regulating in Light Load

XIE Shi-hong, LIU Guo-dong, JIANG Li-bo, MENG Yan-jing

2007, 33(1): 80-82.

<Abstract>(19)

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Application of Model KJJ31 Connector of Min-used Ring Net in Coal Mine Underground

WU Jian-zhong

2007, 33(1): 83-84.

<Abstract>(59)

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Design of Testing Table of Hydraulic Support Controller for Coal Mine

YANG Xia, REN Wei, HONG jua

2007, 33(1): 84-86.

<Abstract>(26)

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Remote Monitoring and Control System of Pump Based on Single-chip Microcomputer and Special-line MODE

LIU Yu-gang~, HONG Bing-lin~, ZHANG Yu-lin~

2007, 33(1): 87-89.

<Abstract>(23)

Abstract:
A method of data collection of substation taking single-chip microcoputer as core in remote(monitoring) and control system was introduced in the paper.By comparing with several methods of communication,the industrial sepcial-line MODEN was selected to realize the remote communication and moni-(toring) the running state for each pump station,thus realize the automation management for pump stations.

Centralized and Decentralized Control of Signal of Mine Locomotive and Application of New Technologies

LIN Jing, LI Yu-liang, LI Dian-ping, GUO Xiang-sheng

2007, 33(1): 89-91.

<Abstract>(3)

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Design of Early Fire-alarm Monitoring System of Substation and Its Implementatio

WANG Li-qin, ZHU Min, JI Xiao-ya

2007, 33(1): 92-93.

<Abstract>(7)

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Reversible DC Speed Regulating System with Full Digital Based on ARM

HE Hong-jiang, WANG Guo-jie