2008 Vol. 34, No. 4

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Cover Catalogue
Research of Prediction Model of Mine Gas Emission Quantity Based on Grey Neural Network Algorithm
SONG Qiang~, XU Lei~, ZHANG Yun-su~
2008, 34(4): 1-4.
<Abstract>(26)
Abstract:
The paper put forward a prediction method of mine gas emission quantity with grey neural network, introduced modeling process of gas prediction model of grey neural network in details. It also gave an example of application. Simulation result showed that the model has some advantages such as high precision of prediction, few samples required and simple calculation.
A New Type of Safety Monitoring System of Roof-bolt Roadway
LIAO Gao-hua, LIU De-hui
2008, 34(4): 4-7.
<Abstract>(30)
Abstract:
In order to assure bolting to reach safe and reliable demands, the paper put forward a design scheme of a new type of safety monitoring system of roof-bolt roadway, and introduced hardware structure and software design of the system in details. The new type of safety monitoring system of roof-bolt roadway realized functions of monitoring for working state of bolt, enquiry for historical data,computer analysis for strained trend.The experiment proved maximum range of the system is 500 kN,measuring error <5%, and the system has strong anti-interference, convenient man-machine interface, good adaptation and self-protection ability.
Research of Compression Technology of Historical Data of Mine Gas
XU Yong-gang, ZHANG Shen, PEI Fei
2008, 34(4): 7-9.
<Abstract>(18)
Abstract:
Through analysis of characteristics of historical data of mine gas and using theory of statistical analysis, the paper presented a research method of time slotted data processing (TSDP) technology that suited in compression of historical data of mine gas. This technology could compress many historical data sectionally, which provided useful reference for other data processing and compression technology of real-time systems.
Gas Monitoring System Based on Data Fusion with BP Neural Network
HAN Bing, FU Hua
2008, 34(4): 10-13.
<Abstract>(32)
Abstract:
Mine gas monitoring system is a multi-sensor monitoring system, which measures circumstance from many azimuthes using sensors with different function, different precision and different position.But at present, there is no general and effective method to process multi-sensor data, as the result real-time and precision of mine gas monitoring system is hard to reach. So, the paper put forward a design scheme of gas monitoring system based on data fusion with BP neural network. The scheme used improved BP neural network algorithm to fuse multi-sensor data,and used two-stage fusing mode to process the data, which can gain environmental characteristics of coal mine underground. The simulation result showed that the gas monitoring system based on data fusion with BP neural network has higher measuring precision, and greatly improves reliability, integrality and efficiency of data collection.
A New Method of Rotation Speed Identification for Speed-sensorless Vector Control System
XU Kai
2008, 34(4): 14-17.
<Abstract>(10)
Abstract:
In AC speed-sensorless speed-regulation system,rotation speed of asynchronous motor can be identified by easily measured voltage and current of stator according to mathematical model of asynchronous motor. The paper analyzed several methods of rotation speed identification based on MRAS,and aiming at disadvantages of these methods such as their reference models included one integrating circuit and would be influenced by resistance change and moment inductance of stator,it put forward a new method of rotation speed identification. The reference model of this method avoids pure integral operation and doesn’t include resistance and moment inductance of stator, so the method has better robust in range of wide speed. Computer simulation result proved feasibility of the proposed method.
Frequency Domain AR Modeling of Multi-path Channel of Underground UHF Wideband Radio Propagatio
WANG Yan-fen, ZHANG Wen-jie, CHEN Ruo-sha
2008, 34(4): 18-20.
<Abstract>(21)
Abstract:
According to impulse response waveform of radio channel,the paper made modeling and simulation of frequency domain autoregressive(AR) for UHF wideband radio multi-path channel of coal mine underground, and proved feasibility of AR model applied in the multi-path channel of coal mine underground, which gave a new idea for computer simulation research on the channel model of wideband as well as ultra-wideband wireless communication of coal mine underground. Simulation result showed that the frequency domain AR model only requires a small quantity of parameters to gain a relative accurate channel description, which is an ideal choice for channel modeling.
Research of Hybrid Transmission Technology of Data and Voice on CAN Bus
ZHAO Zheng-fang, DING En-jie, SHAN Wei-zhen, WEN Jin-chao
2008, 34(4): 21-23.
<Abstract>(69)
Abstract:
On the basis of queuing theory,the paper built a mathematical model for CAN bus protocol, analyzed characteristics of hybrid transmission of data and voice in communication system with Matlab simulation platform and expounded relationship between system load and average transmission time delay of every frame. A hardware communication system with microprocessor PIC18F258, voice processing module AMBE-2000 and A/D-D/A chip PCM3500 was built and corresponding experiment test was made, which realized hybrid transmission of data and voice.
Research of Data Collection and Data Compression Algorithm for Ventilator Monitoring and Control System
MA Rui-ju
2008, 34(4): 24-26.
<Abstract>(33)
Abstract:
Aiming at a large quantity of data collection in ventilator monitoring and control system, the paper introduced an algorithm of real-time data collection and data compression for ventilator monitoring and control system. It described flow of data collection and principle of data compression and its flow in details. The experiment showed that the algorithm is stable and reliable, which could be used in ventilator monitoring and control system of coal mine.
Research of Three-phase Voltage Type PWM Rectifier System Based on SVPWM Control
HU Ying-zhan, ZHAO De-she
2008, 34(4): 26-29.
<Abstract>(18)
Abstract:
The paper introduced fundamental principle of SVPWM,expounded design of structure of three-phase voltage type PWM rectifier system based on SVPWM control. It also gave design parameters of voltage-current double-loop control and implementation of SVPWM control algorithm. The simulation result showed that performance of the system is perfect.
SVPWM Technology of Switch Mode Determined by Hardware Based on DSP
JI Xuan-de, WANG Yu-ya
2008, 34(4): 30-32.
<Abstract>(11)
Abstract:
The paper introduced fundamental principle of SVPWM technology,and gave a SVPWM control method of switching mode of switch determined by hardware based on TMS320F2407A DSP and its software design. Experimental result showed that switch mode determined by hardware could reduce work load of software of microprocessor in induction motor control system, reduce frequency of power switch, and cut down wastage of switch.
An Algorithm of Overload Protection of Motor in Converter and Its Implementatio
LU Hai-feng, WANG Shi-gang, CAO Jia-yong
2008, 34(4): 33-35.
<Abstract>(46)
Abstract:
On the basis of analyzing limitation of traditional overload protection of inverse time lag of motor, the paper put forward a new algorithm of overload protection of motor used in converter according to first order equation of thermal model of motor. It introduced methods of parameters settling and amending in the algorithm in details and gave flow of the algorithm. The simulation result showed that the algorithm reflected physical process of heat generation and heat emission of motor in overload process of motor, and preferably solved the problems such as overload fluctuation and intermittent overload that was not solved by traditional algorithm.
Research of Management and Information Platform of Production Equipments of Coal Mine Based on Spot-inspection Model
JIANG Wei-wei~, LIU Quan-lin~(
2008, 34(4): 36-40.
<Abstract>(40)
Abstract:
The paper briefly explained function and significance of spot-inspection for equipments, introduced system structure of management and information platform of production equipments of coal mine based on spot-inspection model,expounded main technologies adopted for realizing the platform and design of each function module of the platform.
Research of Networked Control System Based on GPC Algorithm
ZHAO Ji, WU Huai-yu, WU Xiao-ping
2008, 34(4): 40-43.
<Abstract>(28)
Abstract:
Aiming at a kind of networked control system(NCS) which contains random time delay,the paper designed a controller based on time delay compensation and generalized predictive control(GPC) algorithm. The controller calculated time delay of sensor-to-controller by analyzing time stamp of data packet, then it obtained the current state and output by time delay compensation and used GPC algorithm to calculated control signal. Simulation result proved effectiveness of the controller.
Research of Fuzzy Wavelet Neural Network and Its Applicatio
WANG Xin, DAI Li
2008, 34(4): 43-46.
<Abstract>(20)
Abstract:
Aiming at disadvantages of wavelet neural network such as long training time and easily gets into local minimum value, the paper put forward a method that wavelet neural network fused fuzzy algorithm, and built fuzzy wavelet neural network model and its training algorithm.It gave practical sample of the model in fault prediction of frequency-conversion speed-regulation system. The application result indicated that fuzzy wavelet neural network improves network training speed and achieves good effect of function approximation.
Analysis of Inserting Loss of Mine-used Twisted-pair Wire Based on ADSL Technology
CHENG Ling-fei
2008, 34(4): 47-49.
<Abstract>(24)
Abstract:
Design of an Improved Selecting Method of Representations
XU Juan, TAN Chang-se
2008, 34(4): 49-52.
<Abstract>(33)
Abstract:
Brief Discussion of Modularization Design of Mine-used Electric Appliances
KANG Ying-shi
2008, 34(4): 53-55.
<Abstract>(23)
Abstract:
Modularization design of mine-used electric appliance is one of effective means for realizing green design, but it is less used in practice. The paper introduced concept and design idea of modularization design of mine-used electric appliance,and presented design procedures of modularzation of the appliance combining with characteristics of design of mine-used low-voltage appliance, which has certain reference significance for modularization design of mine-used electric appliance.
Design and Application of Mine Wireless Communication System Based on CDMA Technology
WANG Kai-min, ZENG Yong-hua, GU Yi-dong
2008, 34(4): 56-58.
<Abstract>(26)
Abstract:
The paper introduced structure of mine wireless communication system based on CDMA technology, wireless covering scheme at surface and underground, main wireless communication equipments underground and realized functions and performances of the system. It also gave comparison analysis of performance between the system and existing wireless communication systems of coal mine. The system has been used in several coal mines, applying effect is good.
Application of Binary Tree in Display Module of High-voltage Vacuum Power Distribution Device
YANG Sheng-yuan, HU Hai-feng
2008, 34(4): 59-62.
<Abstract>(17)
Abstract:
Design of Hexapod Robot Movement Controller Based on AT89S52
CHU Zhong, RUAN Jian-shi, YU Gang-ming
2008, 34(4): 62-65.
<Abstract>(20)
Abstract:
Based on 2 inter-timers of AT89S52 and multi-rudder time slicing control method,a movement controller was designed, which could drive 12 rudders to coordinately work.According to typical walking gaits of hexapod robot, it was realized that movement of the hexapod robot accords with the gait layout. Testing result verified reliability and correctness of the designed scheme.
Online Checking and Signing Method of Sensor in Safety Monitoring and Control System of Coal Mine
WANG Cong-xiao
2008, 34(4): 66-67.
<Abstract>(46)
Abstract:
The paper introduced a new type of online checking and signing method of sensor in safety monitoring and control system of coal mine. Before online checking and signing one sensor, personnel for checking sensor could make checking and signing setting by sensor, substation and main computer, and made the system automatically identify the sensor was in checking and signing state, namely measured value of the sensor later was checking and signing value, not actual value. After finishing checking and signing task, personnel for checking sensor could relieve checking and signing setting by sensor, substation and main computer at once to make the system renew normal working state as quickly as possible.
Research of Control System of Cage Type Asynchronous Motor with High Power Based on DSP for Water Drainage in Mine Emergency Dealing
WU Fu-zhuan, PENG Sheng, WANG Geng, FENG Li-jie
2008, 34(4): 68-70.
<Abstract>(8)
Abstract:
Research of Emergency Communication System of Mine Based on Wireless Sensor Network
ZHANG Yan-ya
2008, 34(4): 71-73.
<Abstract>(23)
Abstract:
Design of Automatic Coal Blending Control System Based on S7-300 PLC and Its Applicatio
ZHU Hong, ZHU Hua-ping
2008, 34(4): 73-74.
<Abstract>(29)
Abstract:
Design of Monitoring Software of Belt Conveyer Operation State of Coal Preparation Plant Based on InTouch
YIN Jun, LEI Ru-hai, WANG Ju
2008, 34(4): 75-78.
<Abstract>(20)
Abstract:
On the basis of integrated control system of belt conveyer of a coal preparation plant, the paper introduced design of monitoring software of belt conveyer operation state based on InTouch. It introduced design and implementation of technologies of monitoring interface, data communication, data storage and output as well as information issue on Internet and Intranet of the monitoring software in details.
Design of Protocol Transducer of Coal Mine Underground Based on Embedded System and Its Implementatio
BIAN Bing, WU Bao-jiang, QIAN Li
2008, 34(4): 79-81.
<Abstract>(22)
Abstract:
Design of Wireless Communication and Control System of Load and Unload at Port and Its Implementatio
TAN Yun-ke, LIU Ke
2008, 34(4): 81-83.
<Abstract>(23)
Abstract:
Dust Removal Device of Electrical Tar in High Power Graphite Electrode Plant and Its Applicatio
LIU Hai-chang
2008, 34(4): 84-86.
<Abstract>(28)
Abstract:
Research of Segmentation Algorithm of Network Set for PCB Fault Detectio
XU Yu-ming, LI Chun-guang, ZHANG Jian-bing
2008, 34(4): 87-90.
<Abstract>(24)
Abstract:
The paper studied a segmentation algorithm of PCB network set, put forward a test algorithm based on response from stimulation to the network set, gave the test circuit and control flow charts based on the algorithm. The practice proved the algorithm can well solve the contradiction between speed of detection and number of network points, which is an effective and rapid way for detection of the PCB′s fault caused by short circuit.
Application of Unit-series Multi-level Converter in Speed-regulation System of High-voltage Ventilator
CHEN Jie
2008, 34(4): 90-92.
<Abstract>(32)
Abstract:
Design of COmmunication Gateway between Ethernet and RS485 Based on Single-chip Microcomputer
WANG Yin-ling, SUN Tao, ZENG Xiao-ji
2008, 34(4): 92-94.
<Abstract>(30)
Abstract:
Application of WinCC Data Filing in Coal Conveying Process
WU Fu-sheng~, HUANG Lin-hua~, LUO Min~
2008, 34(4): 95-98.
<Abstract>(44)
Abstract:
The paper described and analyzed structure of WinCC data filing and its data file layout. Combining with practical engineering,it gave resolving scheme for demand of special function.
Safety Information Remote Monitoring System of Coal Mine Based on Real-time Database
GUO Xiu-cai, LUO Xiao-guang
2008, 34(4): 98-100.
<Abstract>(15)
Abstract:
AC Frequency-conversion Speed-regulation System of Mine Hoist Based on PLC
JIN Xiao-ping, DENG Zhi-jie, NIU Hong-xia, ZHU Zheng-ze
2008, 34(4): 101-103.
<Abstract>(59)
Abstract:
Design of Mine Virtual Reality System Based on OpenGL and Its Implementatio
LI Chang-chun~, WANG Bao-shan~, WEI Zhan-ying~
2008, 34(4): 103-105.
<Abstract>(28)
Abstract:
The paper introduced method and process of developing mine virtual reality(VR)system on the basis of OpenGL and VC++, and described design principle,design flow and design of each function module of the system.
Research of Intelligent Truck Loading System of Adit Trolley and Its Implementatio
WU Yan-ming, HAO Xiao-hong
2008, 34(4): 106-108.
<Abstract>(20)
Abstract:
Design of Data Processing Module of Personnel Position and Tracking System Based on DLL
YU Ning, XU Jian-ju
2008, 34(4): 108-110.
<Abstract>(9)
Abstract:
Design of Electromagnetic Compatibility of Electric Control System of Drilling Machine
QU Xian-ju
2008, 34(4): 111-113.
<Abstract>(30)
Abstract:
Fault Analysis of Over-voltage of Braking Unit in Frequency-conversion Electric Control System of Mine Hoist and Its Implementatio
LIU Rui-hu, LI Zhong, KONG Xiang-qua
2008, 34(4): 113-115.
<Abstract>(47)
Abstract:
Design of Networked Sensor System Interface Based on Internet
LAI Cheng-yu, YIN Kai
2008, 34(4): 116-118.
<Abstract>(17)
Abstract:
Design of Anti-interference of Intelligent Protector of High-voltage Switch Based on Single-chip Microcomputer
GEN Jun-mei, LI Chun-guang
2008, 34(4): 119-122.
<Abstract>(20)
Abstract:
Development of Signal Conversion Unit Used in Mine Ventilator Monitoring System
ZHAO Yun-xiao
2008, 34(4): 122-124.
<Abstract>(12)
Abstract:
Application of RCS9698A Communication Controller in Integrated Automation Communication System of Substatio
LI Lin-jing
2008, 34(4): 125-128.
<Abstract>(4)
Abstract:
Maintenance of ZXD1000 Digital Program-controlled Dispatching Exchanger and Its Dealing with Usual Fault
YANG Hua
2008, 34(4): 128-130.
<Abstract>(43)
Abstract:
A Method of Improving Dynamic Response of Isolated Module Power Supply
XU Zhen, SONG Wei-we
2008, 34(4): 131-133.
<Abstract>(21)
Abstract:
Design of HTTP Server Based on Multithread and Its Implementatio
SHAO Fen, YU Guo-fang, ZHANG Ning
2008, 34(4): 134-137.
<Abstract>(43)
Abstract:
HTTP server is one of the Web servers and it bases on HTTP protocol. The paper introduced some points of applying technology, working principle,and model design of multithread HTTP server developed by VC. Combining with codes, it analyzed realized functions of HTTP server and made a result test.
Research of Memory Leak of C Program under Linux
ZHOU Chao, LIN Deng-wei
2008, 34(4): 137-139.
<Abstract>(34)
Abstract:
Comparison and Application Analysis of ICE and CORBA
TANG Xiao-yan~(, 2)
2008, 34(4): 139-142.
<Abstract>(45)
Abstract:
The paper compared and analyzed the similarities and differences of ICE and CORBA from the point of view of technology, and expounded characteristics and advantages of ICE. At the same time, it also analyzed advantages of ICE through the example of integration of distributed monitoring and control system of coal mine based on ICE.

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