工矿自动化

Research of Integrated Protection System of High-voltage Flameproof Switch Based on Multi-CPU Control

LIU Zhong-fu~, LIU Zhong-qiang~, YANG Ya-ning~

2008, 34(6): 1-5.

<Abstract>(14)

Abstract:
Aiming at the problems of little ability of current carrying,simple protection, high fault rate of flameproof switch for underground 6 kV power grid,the paper proposed a design scheme of integrated protection system of high-voltage flameproof switch based on multi-CPU control,analyzed working(principle) of fault protection of 6 kV high-voltage power grid of coal mine underground,and introduced(design) of hardware and software of the system in details.The integrated protection system of high-voltage flameproof switch based on multi-CPU control used(single-chip) microcomputer MSP430F149 and DSP TMS320VC5402 as main controllers,and the main(controllers) synthetically analyzed all kinds of signals of power grid in order to realize function of general monitoring for high-voltage power grid.The experiment(result) showed that the system is stable in running,reliable in action and accurate in display.

Application Research of UWB Positioning Algorithm of Coal Mine Underground

CHEN Ruo-shan, WANG Yan-fe

2008, 34(6): 5-8.

<Abstract>(26)

Abstract:
Aiming at the problem that traditional positioning algorithm is difficult to be used in coal mine underground,the paper proposed a POCS distance measuring and positioning algorithm based on UWB technology,built model of the algorithm,and introduced principle of the algorithm and its(implementation) in details.The simulation result proved the feasibility of the algorithm used in coal mine underground.

Simulation Research of Single-phase to Ground Fault of 10 kV Power Supply System of Mine

LIU Shu-qin, SONG Jian-cheng

2008, 34(6): 9-12.

<Abstract>(20)

Abstract:
Aiming at over-voltage phenomena of 10 kV power supply system of mine because of single-phase to ground fault,the paper took Matlab simulation platform as base,emphatically analyzed perfor-(mances) of metal grounding fault and arc grounding fault.It built simulation model and carried out digital simulation,and gave fault waveforms and numerical results.

Underground Gas Monitoring and Control System with CAN Bus Based on ARM

ZHAO Cang-rong, ZHOU Meng-ra

2008, 34(6): 13-16.

<Abstract>(10)

Abstract:
According to demands of gas monitoring and control system of coal mine underground on the side of real-time and reliability,the paper proposed a design scheme of underground gas monitoring and control system with CAN bus based on ARM,introduced design of hardware and software of the system and design of CAN bus interface in details.It also gave program flow of gas data collection and CAN bus communication.The experiment indicated that the system has simple structure and higher real-time and reliability.

Visualization Monitoring System of Cutting Process of Boom Miner Based on C7-636

ZHAO Han-qing

2008, 34(6): 16-18.

<Abstract>(25)

Abstract:
In order to solve the problems of the more dust in working process and the operator can’t see clearly the(cutting) header’s physical location to cause less dig and over dig,the paper designed a visuali-(zation) monitoring system of cutting process of boom miner based on C7-636,introduced system compo-(sition) and implementation of visualization monitoring interface of cutting process in details,and gave(design) of system software.Displayed curve and data of the system could provide real-time information for operator,which could reduce the phenomenon of less dig and over dig in the process of digging tunnel and improve construction quality of the tunnel.

Research of Chopping Cascade Speed-regulation System of Mine Hoist

WANG Qing-ling, GU Ju

2008, 34(6): 19-22.

<Abstract>(41)

Abstract:
The paper proposed a scheme of chopping cascade speed-regulation of wound rotor asynchronous motor of mine hoist,which replacing by rotor series resistance speed-regulation.It introduced structure,principle and selection of parameters of chopping cascade speed-regulation system in details,and gave simulation result at last.The scheme could improve speed-regulation performance of mine hoist and save 25 percents of electrical energy.

Development of Charger of Mine Battery Locomotive with Digital Control

LU Qi-wei, WANG Cong, CHENG Hong

2008, 34(6): 22-26.

<Abstract>(30)

Abstract:
Aiming at the disadvantages of big volume,bulkiness,high cost of traditional mine charger of battery locomotive with phase control,the paper proposed a design scheme of mine charger of battery locomotive based on three-level DC-DC converter.It introduced working principle and implementation mode of main circuit and control circuit of the charger in details.The experiment result showed that the charger has advantages of small volume,light weight and low cost comparing with charger with phase control.

Research of Improved Strategy of Double-voltage Composition under Unbalanced Input

WANG Bo~(, 2), DENG Yuan~(

2008, 34(6): 27-29.

<Abstract>(9)

Abstract:
In order to improve input and output performance of matrix converter when voltage is not balanced, the paper proposed an improved strategy of double-voltage composition,introduced a new formula that used to calculate command current,namely through 3-phase input voltage directly calculated positive and negative voltage to get command current.The simulation experiment proved the validity of improved strategy of double-voltage composition under unbalanced input.

Analysis of Waveform Changing Characteristics of Rock Acoustic Emission Signal

HE Jian-ping

2008, 34(6): 30-32.

<Abstract>(19)

Abstract:
Through analyzing waveform of rock acoustic emission signal collected in acoustic emission laboratory and on site,the paper found waveform changing rule of rock from stability to fracture under effects of environmental factors,which could judge danger of rock.The rule provided reliable (forecasting) information for safe construction of stope and tunnel and has certain practical significance.

Design of Wireless Motor-ID Coding Sensor Based on WinCE Embedded System

WU Xing-hua

2008, 34(6): 33-36.

<Abstract>(14)

Abstract:
Based on the study of traditional wireless motor-ID coding sensor,the paper discussed design of software and hardware of a new type of wireless motor-ID coding sensor based on WinCE embedded system in details.Transmitter of the wireless motor-ID coding sensor took embedded system as control core,and could realize information exchange between man and machine and information display by use of touch-LCD and optimize access mechanism of wireless channel with CSMA-CA algorithm by detecting channel energy threshold.Receiving substation of the wireless motor-ID coding sensor also took embedded system as control core,and could realize decoding of motor-ID,meanwhile response commands of the upper monitoring substation to collect motor-ID.

Three-level Direct Torque Control of Salient Pole Synchronous Motor

HUANG You-rui, HUANG Jia

2008, 34(6): 36-40.

<Abstract>(20)

Abstract:
The paper gave a mathematical model of salient pole synchronous motor supplied power by three-lever inverter,introduced principle of three-level direct torque control of salient pole synchronous motor,described synthesis principle of synthesis virtual phase,and gave some simulation waveforms of three-level direct torque control of the salient pole synchronous motor based on synthesis virtual phase method.The simulation result showed that the method has some advantages such as low torque ripple and fast response,and so it has certain practical application value.

Accurate Measurement of Capacitiance Current Based on DSP

HE Hong-jiang, SHAO Zhan-ying

2008, 34(6): 40-43.

<Abstract>(17)

Abstract:
Recently,with the changes of structure of power grid,the method of injection signal has been used widely in the measurement of capacitance current.There are two bottleneck problems were not resolved in process of practical application of the method,namely the problems of signal source and 50 Hz trapped wave.Aiming at the two problems,the paper proposed a new method of using digital signal processor TMS320F2812 and DDS technology to realize measurement of capacitance current.It introduced design of hardware and software of signal source and design of 50 Hz wavetrap in details,and gave whole implementation of the method.The experiment proved that the method has characteristics of accuracy, conveniency and safety in measurement of capacitance current.

Application of a New Matching Method in Automatic Reading System of Index-instrument

YANG Shu-sheng, DENG Zhi-xiang, FU Fu-zhuang

2008, 34(6): 44-46.

<Abstract>(5)

Abstract:
In automatic reading system of index-instrument,image of dial plate needed be read must match template in order to decide type and range of instrument needed be read.However,traditional template matching algorithm has bad antiinterference ability for geometric distortion dilation,rotation of image. Circle partitioning matching method has certain anti-interference ability,but low matching accuracy.The paper proposed loop matching method on the basis of circle partitioning matching method,which used picture element of loop to calculate sum and calculate characteristic value to realize matching.The experiment result showed that the loop matching method has good anti-interference ability,better matching accuracy and good practical application value.

Flight Time Measurement System of Laser Ranging Based on TDC-GP2

YAO Wan-ye, LONG Yang, ZHANG Dong-feng, YOU Yong-hua

2008, 34(6): 47-49.

<Abstract>(16)

Abstract:
In laser measurement system for coal stockpile,measurement of flight time is a key factor influencing on precision of the system.The paper designed a laser flight time interval measurement system used in laser measurement system for coal stockpile based on high precision measurement chip TDC-GP2 for time interal,introduced principle of laser ranging of TDC-GP2,and gave design of hardware and software of the system.Experimental result showed that the system has simple construction,high precision,and higher feasibility.

Design of Intelligent Switch System Based on Power Supply Monitoring of Mine

JIANG Feng, HE Chao-ying, Ye Zi-qing

2008, 34(6): 49-52.

<Abstract>(40)

Abstract:
The paper introduced a design scheme of intelligent switch system which could realize remote monitoring for power supply system of mine,and expounded working principle,hardware circuit and software design of the system.The practical application showed that the system has reliable performance and can meet application requirement and has certain practical application value.

Design of Monitoring System for Mine-used Flameproof Feeding Switches Based on Embedded System

HONG Yan, SU Jing-ming

2008, 34(6): 53-55.

<Abstract>(15)

Abstract:
After applying embedded system based on ARM7 into mine-used flameproof feeding switch,real-time data collection and rapid connecting with industrial Ethernet of underground mine-used flameproof feeding switches were realized. Communication between ground monitoring station and underground monitoring system of feeding switches based on embedded system was realized by use of technology of the socket programming.Information inquiring and remote intelligent monitoring of feeding switches were realized with Web service platform based on B/S framework established by ASP.NET.Monitoring system for mine-used flameproof feeding switches based on embedded system improved level of operation and control of underground feeding switches,and also could be used for reference of design of intelligent remote monitoring system of other electric equipments of coal mine underground.

Development of Multi-function Gas Alarming Head Lamp Based on Wireless RF Communicatio

QIN Xian-li, LIU Xin-lei, SHEN Bi

2008, 34(6): 56-59.

<Abstract>(20)

Abstract:
Aiming at the problems that alarming signal of gas alarming head lamp at present can′t be obtained by monitoring center and fixed gas detector has small monitoring areas and is difficult to move,the paper proposed a design scheme of multi-function gas alarming head lamp with the function of wireless transmission of gas overrun signal. It introduced design of hardware and software of the head lamp in details, as well as gave wireless communication scheme and several key technologies.The field experiment showed that wireless communication distance of the head lamp could reach 160 m in coal mine underground, which made up shortage of fixed point gas monitoring,and ensured safe production of coal mine.

Automatic Control System for Treatment of Mine Drainage with High Degree of Mineralization Based on PLC and Industrial Control Computer

CUI Dong-feng, ZHOU Ru-lu, ZHU Liu-sheng

2008, 34(6): 59-60.

<Abstract>(20)

Abstract:

Development of Rotate Speed Protection System of Conveyor Belt Based on CAN Bus

DU Han-xiang, OUYANG Ming-san, DU Ku

2008, 34(6): 61-63.

<Abstract>(44)

Abstract:

Research of Temperature and Humidity Monitoring and Optical Fiber Communication System of Coal Mine Underground

WANG Xiao-lei, WU Bi-duan, JIANG Qun, WU Bing-xi

2008, 34(6): 63-65.

<Abstract>(18)

Abstract:

Research of Integrated Model of Mining Information Heterogeneous Database

ZHAO Wen-tao, WEI Hong-ge

2008, 34(6): 66-69.

<Abstract>(11)

Abstract:
Combining with the advantages of XML and Web Service,the paper proposed an integrated model of mining information heterogeneous database,and expounded technical implementation of the model. The practice proved that in the case of unchanging storage and management mode of original data,the model could realize unified and transparent visit for heterogeneous data source well and ensure integrity, security and consistency of the data,which has high efficiency in development.

Development of Software of Mine Ventilation Safety Management and Decision Support Based on Component GIS

LIU Hui-de, LIAN Li-ying, AI Ting

2008, 34(6): 69-71.

<Abstract>(9)

Abstract:

Design of HDSL Equipment Management Software Based on zebra Command Line

SUN Lei, XU Zhao, LI Ming, YANG Ai-ping

2008, 34(6): 72-73.

<Abstract>(19)

Abstract:

A Level Meter with Wide Range Based on Multi-counter

SHI Yuan-ping~, YU Jing-sheng~, YANG Zhi-yun~, CHEN Yong-zhi~

2008, 34(6): 74-75.

<Abstract>(25)

Abstract:
Aiming at the disadvantages of small detection range of traditional level meter based on ray detector, the paper proposed a design scheme of level meter with wide range based on multi-counter, introduced detecting principle of the level meter and mathematic relation between ray counting and measured liquid level. It also gave design circuit of detector in the level meter,and calibration process of multicounter. The level meter was composed of many serial counters which made range effectively accepting ray of detector enlarge and detecting range could achieve 3 m.The level meter achieved range and measurement precision that other measurement modes were difficult to realize.

Modeling Design of Controller of Frequency Converter of Electric Traction Shearer Based on UML

SHI Yong, DONG Feng, CHEN Li-li, DIAO Hong-chao

2008, 34(6): 76-79.

<Abstract>(13)

Abstract:
Aiming at the design defect in traditional design of electric control system of mine-used electric traction shearer, the paper proposed a scheme of requirement analysis and design of system based on UML modeling method in the early days. It introduced the modeling design method based on UML with example of modeling design of controller of frequency converter of electric control system of mine-used electric traction shearer.

Design of Low-power Measuring Apparatus for Electrical Quantity Based on MSP430F449

LIU Peng, XIA Bo-kai, WANG Wei-bo, CUI Hai-peng

2008, 34(6): 79-81.

<Abstract>(5)

Abstract:

Measurement of Concentration of Coal Dust

XING Li-jua

2008, 34(6): 82-84.

<Abstract>(22)

Abstract:

12-pulse Serial Rectification Technology Based on 6RA70 Rectifying Device and Its Applicatio

WANG Gong-hua~(, 2), CHEN Ying~, DING Rui~

2008, 34(6): 84-86.

<Abstract>(24)

Abstract:
The paper introduced a method that using SIMOREG DC-MASTER 6RA70 rectifying device to realize 12-pulse serial rectification technology and then realize DC speed-regulation control of hoist. It described setting of driving parameters of 12-pulse serial rectification. The 12-pulse serial rectification technology has been used in DC speed-regulation control system of Nantun coal mine. The application result showed that the technology got over the abuses of increasing capability of 12impulse parallel driving in order to meet safety hoisting under fault state, and realized safe and reliable running of hoist under different states, the technology eliminated basically fifth and seventh harmonic generated by 6-pulse rectification, reduced interference for power grid and communication and control circuit,and decreased false action and damage for PLG exact electron device.

Research of Computer Management Coding Method of Coal Mine Materials

REN Yong-chang~(, 3), XING Tao~(

2008, 34(6): 87-89.

<Abstract>(8)

Abstract:
Aiming at the existed abuse of handwork management mode of coal mine materials, the paper proposed a computer management coding method of coal mine materials, introduced principle followed by meterials’ coding and expounded methods of materials’ classifying and coding, and gave structure of database needed by materials code.

Design of Networked COntrol System of Coal Preparation Plant

ZHANG Xiao-qiang, YIN Jun, LEI Ru-hai

2008, 34(6): 89-91.

<Abstract>(29)

Abstract:

Application Research of Instant Messaging Technology in Cooperative Official Business System of Coal Enterprise

XU Shou-kun, ZHU Quan-feng, MA Zheng-hua, JIANG Jian-ming

2008, 34(6): 92-94.

<Abstract>(21)

Abstract:
Cooperative official business system of coal enterprise based on P2P mode is an effective method to promote information level of coal enterprise. The paper analyzed combining points of instant messaging technology and cooperative official business system of coal enterprise and structure of function layers of the instant messaging system,and then discussed implementation of the system from rules of node marking, establishment of working group and communication between nodes.

Design of Double-locomotive Reconnextion Control System of Mine-used 150 t Locomotive and Its Implementatio

LU Guo-tao, GUO Ji-ling, WANG Yuan-bo, WANG Qiang

2008, 34(6): 95-99.

<Abstract>(11)

Abstract:

Research of Fault Diagnosis System of Belt Conveyor Based on Fuzzy Algorithm

LIU Qing-wei, XU Ying-xi, LI Chuan-feng, SHU Yun-xing

2008, 34(6): 99-102.

<Abstract>(7)

Abstract:

Design of Report Forms System of Coal Resources Management Based on Workflow

HAN Jing-min, HAN Zuo-zhen, LI Zhi-yua

2008, 34(6): 103-105.

<Abstract>(5)

Abstract:

Processing Technology of Abnormal Data of Monitoring Substation Used in Coal Mine

LI Chang-lu, JIN Shu-jun, LI Hui, JIANG Ran-zhi

2008, 34(6): 105-107.

<Abstract>(14)

Abstract:

Design of Mine-used IP Camera Based on Multimedia Processing Chip

ZHAO Li-chang~, DENG Zeng-bo~, ZHU Guo-yuan~, WANG Cong-xiao~

2008, 34(6): 108-110.

<Abstract>(37)

Abstract:
Aiming at the shortages of simulative camera used in coal mine underground, the paper proposed a design scheme of IP camera based on digitization technology, introduced design and implementation of digitization IP camera in details. The hardware of the digitization IP camera took Z228 multimedia processing chip as core,the software of the digitization IP camera took Linux as core,which not only realized digitization, network and intelligentize of video monitoring and control system of mine, improved performances and stability of video monitoring and control system of mine, but also has advantages of high integration level, simple structure, easy to develop, low cost and easy to use etc.

Design of Monitoring and COntrol System of Main Fan for Mine Ventilation and Its Applicatio

QIAO Lei-ming

2008, 34(6): 111-113.

<Abstract>(9)

Abstract:

Design of Mass Memory Based on USB Port

MENG Ru, ZHANG Wei-qin, WANG Chuan-qi, ZHANG Jian, SUN Yu-qua

2008, 34(6): 117-119.

<Abstract>(18)

Abstract:

Design of Time Reporting Telephone Based on MSP430 Single-chip Microcomputer

WU Zhi-gang, MIAO Chang-yu