工矿自动化

Adaptive OFDM Algorithm and Its Application in Underground Wireless Communication System

ZHANG Xiao-guang, XU Zhao, PEI Hong-xia, HAN Lu

2008, 34(2): 1-5.

<Abstract>(37)

Abstract:
Because of selective fading of frequency,the frequency response of each subchannel of OFDM is different. In order to ensure bit error rate performance of the system, OFDM will decide distribution of bit and power according to the largest attenuation of the subchannels, which will cause great waste.So,the paper presented an adaptive OFDM(AOFDM) algorithm which made each carrier wave of OFDM to select modulation mode and power distribution according to dynamic change of channel characteristics and got the best match of channel capability. The paper introduced bit and power algorithm of AOFDM in details, analyzed characteristics of underground wireless communication system, and pointed out AOFDM algorithm was very suit for underground wireless communication system. It also gave block diagram of designed underground wireless communication system based on AOFDM.Simulation result showed that the system has good applying effect.

Design of Virtual Mine Wandering System Based on Vega and Its Implementatio

GE Shuang-quan, ZHENG Peng, ZHAO Ying-feng, LUO Bi

2008, 34(2): 5-8.

<Abstract>(37)

Abstract:
The paper introduced a virtual mine wandering system based on software platform Creator and Vega,analyzed system’s platform and software structure, expounded some key technical problems in construction of virtual scene, such as modeling and optimization of large scale and complex scene,optimization of scene’s database,display and optimization of CAD model, optimization of data’s format. And it also introduced solving methods for technical problems of motion control and collision detection.

Application of Supervised Learning in Building Model of Extraction of Gas Disaster Informatio

WANG Yu-hong, HAO Yi-kui

2008, 34(2): 8-12.

<Abstract>(28)

Abstract:
The paper constructed a BP neural network on the basis of supervised learning, and built a model of extraction of gas disaster information by training the BP neural network. And it used data mining software iDA to analyze the model and to find and extract the valuable information for preventing gas disaster.

Application of Genetic Algorithm in Optimization of Vehicle Dispatching System of Jinduicheng Molybdenum Mine

NIE Xing-xin~, LIU Shu-xiang~

2008, 34(2): 12-15.

<Abstract>(46)

Abstract:
The paper introduced application of genetic algorithm in optimization of vehicle dispatching system of Jinduicheng molybdenum mine,expounded working principle and flows of genetic algorithm applied in this system. The experiment showed that using genetic algorithm to optimize mine vehicle dispatching system is feasible and effective.

Research of Networked Intelligent Sensor Based on IEEE1451.2

MA Sheng-gui

2008, 34(2): 16-19.

<Abstract>(45)

Abstract:
On the basis of the interface standard IEEE1451.2 of network sensor, the paper put forward a design idea of networked intelligent sensor based on CAN Bus combining with development requirements of coal industry automation and technical features of CAN Bus. For network sensor nodes,the paper put forward a design method of online programming, and introduced hardware structure,digital communication interface of network sensors as well as TEDS design thought and communications data format in details.

Research of Adaptive Combined Control Strategy of Steel Rope Belt of Mine

YUAN Xing~, HE Feng-you~, JIA Ke~

2008, 34(2): 19-21.

<Abstract>(33)

Abstract:
Aiming at characteristics of electric control system and braking system of steel rope belt of mine, the paper presented combined control strategy based on fuzzy control of neural network with parameter self-regulation, detailedly introduced combined control structure of electric control system and braking system, fuzzy controller structure of neural network with parameter self-regulation and adaptive combined control strategy of steel rope belt. Simulation and practical application showed that this combined control strategy realized integral control of electric control system and braking system of steel rope belt of mine, and met with high-performance demand of control system of steel rope belt.

Research of Fault Diagnosis of Gas Sensor Based on Information Fusion Technology

WANG Qi-jun~, CHENG Jiu-long~

2008, 34(2): 22-25.

<Abstract>(35)

Abstract:
The paper presented an idea of applying information fusion technology based on RBF network in fault diagnosis of gas sensor. Through fusion of related information that influenced gas density of observed point, and using the comparison between the difference output of high-precision RBF network approximator and actual output of gas sensor and the given threshold,this technology realized monitoring and diagnosis for fault of gas sensor. Experiment showed that the state monitoring and fault diagnosis of gas sensor could be done effectually by this technology.

Analysis and Research of Production Demand of Coal Quality Assaying Management and Information System

CHEN Jian-wei

2008, 34(2): 25-27.

<Abstract>(34)

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Research of a New Type of Intelligent Infrared Absorption Gas Sensor Used in Mine

YAO Yu-wei~, ZHAO Sai-guo~, WANG Ru-lin~

2008, 34(2): 28-31.

<Abstract>(35)

Abstract:
Aiming at the disadvantages of traditional gas sensor used in mine,the paper designed a new type of gas sensor based on principle of infrared ray absorption. It introduced detection principle of infrared absorption, expounded composition of infrared absorption gas sensor. It also gave calculating method for concentration value of gas.Experimental result showed that the error between concentration value measured by infrared absorption gas sensor and actual value achieved demands of coal safety verification.

Research of Integrative Control of a New Type of Dual-PWM Converter

ZHENG Zheng, LIU Li-xia, TAO Hai-jun

2008, 34(2): 32-35.

<Abstract>(38)

Abstract:
The rectifying link and the inversion link is mutually independent in traditional dual-PWM frequency-conversion and speed-regulation control system, so the capacity of capacitance of DC side is bigger which can cause problems such as big size of the device and low reliability. The paper adopted integrative control for rectifier and inverter with SVPWM control strategy, which could solve the above problems.At the same time, in order to reduce interference and improve reliability of the system, the paper adopted master-slave structure mode of dual-DSP, which separated the control link and the drive link of converter as well as the main circuit of power amplifier far from the controller and close to the drive circuit. The experimental results proved the feasibility of this control method.

A New Type of UPS Circuit Structure with Dual-inverter and Its Control Strategy

LI Lang-guang~(, 2), WANG Cong~

2008, 34(2): 35-38.

<Abstract>(39)

Abstract:
The paper introduced circuit structure,working principle and control strategy of a new type of single-phase UPS system with series-parallel dual-inverter. The two inverters of the UPS system could work in coordination with each other in inverted mode when power net was cut, and the parallel inverter runs in on off state of 50 Hz pulse wave, its harmonic was compensated by the series inverter which runs in high frequency PWM state. The output wave of the UPS system was still in sine wave,and the efficency of the UPS system was improved. The simulation research proved the feasibility of this scheme.

High-voltage Integrated Protection Based on Improved Fourier Algorithm

LIU Jian-hua, LIANG Rui, ZHANG Dong-liang, LI Xiao-bo, MA Cao-yuan, LI Guo-xi

2008, 34(2): 39-41.

<Abstract>(52)

Abstract:
Aiming at the existing problem of high-voltage flameproof switch in realizing integrated protection, namely under influence of disturbance of decaying DC component,decaying DC component can not be filtered by traditional full wave Fourier algorithm,so that the protection will easily fail to operate or unwanted operate. The paper presented an improved full wave Fourier algorithm which could filter completely decaying DC component and higher order harmonic signal. It also gave hardware structure of high-voltage flameproof switch based on the algorithm. The experiment proved this algorithmis is reliable and accurate and has a little calculated amount, and is a feasible method for intelligent high-voltage integrated protection.

Design and Implementation of Video Monitoring System Based on Distributed Transmitting Platform

ZHAO Yan~, LIU Yu-ying~, CHENG De-qiang~, ZHAO Hong-gang~, LIU Zeng-bao~

2008, 34(2): 42-45.

<Abstract>(41)

Abstract:
The paper presented a design scheme of remote video monitoring system based on PC-board card controlled by distributed transmitting platform, expounded functions and characteristics of the digital video monitoring system, and introduced general structure of hardware, general design idea of software platform of the system,and key technologies, etc.

2008, 34(2): 45-48.

<Abstract>(30)

Abstract:

Design of Personnel Position System of Mine Based on ZigBee Technology

ZHANG Chang-sen, DONG Peng-yong, XU Jing-tao

2008, 34(2): 48-50.

<Abstract>(68)

Abstract:
Aiming at the features and advantages of ZigBee technology,combining with the production features of coal mine underground,the paper presented a design scheme of personnel position system of mine based on ZigBee technology,introduced wireless communication networking mode of ZigBee device in coal mine underground.It expounded wireless transmitting mode of data of ZigBee communication protocol bag between ZigBee RFD node module and ZigBee FFD node module,and gave principle of personnel position of coal mine underground and its realizing process,and structure diagram of management software system.

Information Management System of Coal Mine Dispatching Drawings Based on WebGIS

REN Zong-yu

2008, 34(2): 51-54.

<Abstract>(26)

Abstract:
The paper analyzed significance of digitization of coal mine dispatching drawings, expounded the theory and its implementation technologies of WebGIS, introduced design and implementation of an information management system of coal mine dispatching drawings based on WebGIS in details.At the end,the paper gave an applying example of information management system of coal mine dispatching drawings.

Design of Remote Power Dispatching Automation System of Mine Based on Web and Its Implementatio

HU Qing-song, ZHANG Shen, QU

2008, 34(2): 54-56.

<Abstract>(28)

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Design of Embedded Control System of Bucket Wheel Reclaimer Based on CAN Bus

SUN Bing, WANG Lei

2008, 34(2): 57-60.

<Abstract>(24)

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Application of Technology of Laser Rader in Backup Travel Protection of Friction Hoist of Coal Mine

ZHOU Meng-ying

2008, 34(2): 60-62.

<Abstract>(43)

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Design of Alarming Node System for Gas of Coal Mine Based on CAN Bus

DING Gang, YAN Hui, XIA Wei

2008, 34(2): 63-65.

<Abstract>(21)

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Safety Monitoring and Control System of Integrated Parameters of Airshaft Based on GPRS

CAO Zhen-guan, WU Yong-xiang, LI Hua-xi

2008, 34(2): 65-67.

<Abstract>(50)

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Monitoring and Control System of Power Network of Coal Mine Based on WorldFIP Bus

XU Xing-qin, PAN Feng, SHEN Wei

2008, 34(2): 68-70.

<Abstract>(61)

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Application of Infrared Technology in Detection and Prediction of Karst in Tunnel Excavating

LI XING-chun, WANG Hong, LI Xing-gao

2008, 34(2): 70-71.

<Abstract>(20)

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Method of Serial Communication between PC and μPSD Single-chip Microcomputer Based on LabWindows/CVI

HUANG Wei-yong, SHAO Xiao-ge

2008, 34(2): 72-74.

<Abstract>(39)

Abstract:

Current-detected System Based on Hall Sensor

WANG Xiang-ting, SU Xiao-long

2008, 34(2): 74-76.

<Abstract>(47)

Abstract:

Development of High-voltage Side Protector of Flameproof Mobile Substation used in Mine Based on ARM

LING Liu-yi, HUANG You-rui, QU Li-guo

2008, 34(2): 76-78.

<Abstract>(26)

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Research of SPWM Frequency-conversion System Based on FPGA

XU Qiang, ZHUANG Yan-bi

2008, 34(2): 79-82.

<Abstract>(84)

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A New Type of Power Supply of Intrinsic Safety

WANG Lei, LI Zhen-bi

2008, 34(2): 82-84.

<Abstract>(61)

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Using Method of Three Peak Values to Determine Balancing Position of Gyroscope Inclinometer

HU Guo-si, ZHENG Ying-ping

2008, 34(2): 84-86.

<Abstract>(30)

Abstract:

Application Research of Intelligent Remote Monitoring System of Mine Ventilator

ZHANG Yi~(, 2), WANG Ding-yuan~(

2008, 34(2): 87-90.

<Abstract>(52)

Abstract:
According to the demands of high reliability and good real-time of mine ventilator, the paper designed an intelligent remote monitoring system and presented a control scheme of variable frequency variable speed(VFVS) with dual-controller. The active/standby controller adopted modes such as parameters’ backup each other and automatic switch-over for fault, which assured realtime and stability of the control system. The system realized remote monitoring for working status of ventilator through monitoring the parameters such as axes temperature and working voltage of ventilator and wind pressure of lane way in real-time, and it had the functions of overweight control, alarming, printing and so on.

Design of Office Information Platform of Coal Mine Enterprises Based on Web

LU Nan-nan, QIAN Jian-sheng, CHENG Jian, HUANG Xing, CHEN Dai-zhe

2008, 34(2): 90-93.

<Abstract>(48)

Abstract:

Automation System of Power Supply of Coal Mine Based on OPC

DENG Xian-ming, YUAN Qi-dong, LU Jia, ZHANG Min, SHI Hua-jie

2008, 34(2): 94-97.

<Abstract>(39)

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Application of GIS in Multiple Networking of Coal Mine Safety Monitoring and Control System

HAO Qin-xia, LU Jian-ju

2008, 34(2): 97-99.

<Abstract>(22)

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Design of Mine Measuring Information and Management System and Its Implementatio

CAI Lai-liang, XU Jing, GAO Shu-lei, LIU Hu

2008, 34(2): 103-105.

<Abstract>(26)

Abstract:

Resources Management and Information System of Coal-bed Gas Based on GIS

LUO Li

2008, 34(2): 105-108.

<Abstract>(37)

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Design of Vibration Monitoring System of Mine Hoist and Its Fault Diagnosis

LIU Fen, MENG Shu-qi

2008, 34(2): 108-110.

<Abstract>(28)

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Design of Vibration Monitoring System of Mine Hoist and Its Fault Diagnosis

DAI Xin-ping

2008, 34(2): 111-113.

<Abstract>(32)

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Design of Image Collecting System Based on CMOS Sensor

ZONG Cong-jiu, ZHANG Zhi-xian, GUAN Zong-an, LI Li-na

2008, 34(2): 113-115.

<Abstract>(77)

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Design of Microcomputer Protection Device Based on ARMS3C4510B

SHANG Li-qun, Bai Wei-zu, Cheng Gang

2008, 34(2): 116-118.

<Abstract>(38)

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Development of Automatic Instrument Used to measure Sulfur

LIU Hui, MA Ling-yun, HE Dong-lu

2008, 34(2): 118-120.

<Abstract>(42)

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Design of 4~20 mA Current Loop Based on DSP

WANG Li-hua~, HAN Jing-dong~, SHAO Yu-qin~, MENG Xiu-jin~

2008, 34(2): 121-123.

<Abstract>(37)

Abstract:
Aiming at anti-disturbance characteristics of 4~20 mA current loop, and ability of real-time signal processing and complicated algorithm processing of DSP, and DSP’s abundant on-chip external devices and characteristics of I/O interface, the paper presented a kind of design scheme of 4~20 mA current loop based on DSP, and introduced basic composition of this current loop, application of DSP and control strategy of PID. It also gave a design example of 4~20 mA current loop based on DSP.

Research of Remote Monitoring System of Inverted Pendulum Based on Ethernet

FAN Yang

2008, 34(2): 124-126.

<Abstract>(27)

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Design of Gas Monitoring and Alarming Interface Based on VB6.0

LI Zhan-sheng, WU Cheng-gang, ZHOU Jiu, WANG Hui

2008, 34(2): 126-127.

<Abstract>(31)

Abstract:

Application of MCGS in Transport System with Automatic To and Fro and Speed Changing

YANG De-bao