2005 Vol. 31, No. 5

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Cover Catalogue
Intelligent Control of Filter Pressing System for Float Coal
LEI Ru-hai, MA Yong, WANG Ju
2005, 31(5): 1-3.
<Abstract>(34)
Abstract:
Using intelligent control system and neural network expert system to set the time of filter pressing for float coal, and fuzzy logic control technology to modify the time based on the actual moisture warp, and realize the control of the product’s moisture of filter pressing system for float coal. The results of simulation showed that the effect of the control is good.
Study on Communication Method for Mine-used Feeder Switch Based on RS485
HU Shou-xin, YOU Guo-dong, SONG Jian-cheng
2005, 31(5): 4-5.
<Abstract>(70)
Abstract:
On the basis of analysis of the working principle and characteristics of RS232 and RS485, serial communication method was confirmed that the long distance data communication of mine-used feeder switch can be realized by adopting RS485 serial communication standard interface. The switch can communicate with upper PC. The experiments showed that the method is long distance in communication and reliable in data transmission and has practical value.
Study on Synchronous Control System of Multi-motor Based on N∶N Network
YANG Yan-xiang
2005, 31(5): 6-9.
<Abstract>(42)
Abstract:
This article discussed the importance of synchronous control system in industry. Then it put forward a synchronous control system of multi-motor based on N∶N network communication system by FX2N programmable controller. The relevant hardware and software were showed. Especially optimizing PID algorithm was given. Practice proved that the system has rapid dynamic response, little overshoot and high accuracy.
Analysis of Harmonics in Rectification Circuit and Correction of Single-stage Power Factor
ZHENG Zheng, TAO Hai-ju
2005, 31(5): 9-11.
<Abstract>(27)
Abstract:
This paper introduced a computing method about power factor of rectification circuit, analyzed emphatically the influence of harmonics on power factor in three-phase rectification circuit. Experiment results showed that the correction device of power factor could realize high power factor, low harmonic distortion and low ripple of output voltage.
Research and Application of Expert Control System of Pressure in Coke Furnace
ZHU Wu-guang, ZHOU Bin, LI Wen-yin, HE Jin-xin, TONG Zhi-che
2005, 31(5): 12-13.
<Abstract>(30)
Abstract:
Taking the application of pressure control system of coke furnace in coal carbonization for example, the paper discussed the design and application of the the real-time expert controller. The controller was designed by expert system and modified PI controller, which has not only experts’ experiences, but also control precisions.
The Gesture Measuring of Working Unit of Hydraulic Excavator
CHEN Qian-gen, WU Xiao-jian, ZHAO Jua
2005, 31(5): 14-16.
<Abstract>(29)
Abstract:
On the bases of analysing of the working principle of inclinometer and research of the motion of the working unit of hydraulic excavator, this article presented a way of how to measure the gesture and position of hydraulic excavator’s working unit using the dual-axis inclinometer, which provide the precondition to realize the intelligence of hydraulic excavator.
The Decision Method of Multi-attribute and Multi-men Based on D-S Evidence Theory and Its Applicatio
CHEN Ying, NI Jian-jun, XU Li-zhong
2005, 31(5): 16-18.
<Abstract>(26)
Abstract:
A New Thought of Communication Mode of Integrated Safety Monitoring System Used in Small Coal Mine
ZHONG Zhen-yu~, CAI Kang-xu~, ZHAO Yun-sheng~
2005, 31(5): 19-21.
<Abstract>(42)
Abstract:
A management scheme of integrated remote monitoring for small coal mine was put forward in this paper. In the scheme, the information transmission system of tradition control and monitoring system was improved. The scheme used MCU and modem chip to replace the main computer in transmission system can enhance the reliability of monitoring system, and meanwhile reduce the working cost, so it is suitable for small coal mines.
Using Nano-micro Sensor and Single-chip Microcomputer to Realize Remote Cloosed Loop Control of Gas Density in Underground
LI Hai-che
2005, 31(5): 21-22.
<Abstract>(37)
Abstract:
The Realization of Automatic Substation of Coal Mine Underground
YIN Lian-mi
2005, 31(5): 23-25.
<Abstract>(70)
Abstract:
The Realization of Serial Data Communication Based on CPLD in Ultrasonic Alarming System for Gas SF6
ZHU Chang-ping~ , JIANG Fu-chun~ , HE De-yu~, ZHAO Shuai~, ZHANG Xiao-hua~
2005, 31(5): 26-28.
<Abstract>(50)
Abstract:
Based on the CPLD, this paper designed a scheme of serial data communication of the ultrasonic alarming system for gas SF6. Using the language VC and VHDL to realize the communication program of the up-device and down-device respectively. The practice experiment proved there are merits of high baud rate and actual transmittion about the serial communication by CPLD. The serial data communication is adapt for the detecting and alarming system with weak signal.
Research of Monitoring and Control System in Coal Mine Based on Configuration Software MCGS
XU Chun-yan, HUA Gang, LIU Xiao-dong, HU Yi-hua
2005, 31(5): 28-30.
<Abstract>(66)
Abstract:
This paper introduced the main characteristics and functions of configuration software MCGS. It also analyzed the structure of the mine monitoring and control system and gave a way to realize the system.
Improvement on Data Communication Interface of TYSC-3Q Digital Well Logging Instrument
QIU Xing-guo
2005, 31(5): 31-33.
<Abstract>(46)
Abstract:
The TYSC-3Q digital well logging instrument is the main equipment to exactly explore in the coal industry and nuclear industry. In the process of data collection, it uses parallel interface to communicate with PC. Malfunction appeared frequently in actual exploring. Based on the analysis of the principle and exsisting problems of the TYSC-3Q digital well logging instument, the sequence of data communicating with PC was studied deeply, and reformed scheme was proposed by using SCM technology, in which the original interface card was replaced by RS232 serial interface.
Network Issuing of Running State for Hoister Based on VB
MA Zheng-lan, CHEN Xiang-en, YU Lei
2005, 31(5): 33-35.
<Abstract>(19)
Abstract:
Analysis and Implementation for Preventing Overload in Loading and Unloading System
WANG De-tang~, XIAO Xing-ming~, ZHAO Yu-bin~, FU Xiang-yun~
2005, 31(5): 36-37.
<Abstract>(24)
Abstract:
The article analyzed how to prevent from overload and reload phenomenon in a mine DC hoister in main shaft, put forward a new method of inspecting motors current parameter to estimate mine- ral quantity in container, and described how to realize the method in application system.
An Approach of Online Monitoring and Control for Speed Reducer of Gear
LIU Xiao-han~, ZHANG Jian-guo~, WAN Tian-xing~
2005, 31(5): 38-39.
<Abstract>(36)
Abstract:
This paper discussed the online monitoring techndogy of speed reducer of gear used in scra-per conveyor. On the bases of online diagnosis principle of gears,the online monitoring method for gears,applying instrumens and attentions were pointed out.
Design of Fault Diagnosis System of Electric Control System for a Large-scale Electromechanical Incorporate Equipment
SONG Zhi-dan~, WANG Yu-sen~
2005, 31(5): 40-42.
<Abstract>(27)
Abstract:
A fault diagnosis system of electric control for a large-scale electromechanical incorporate equipment was designed in the article, which could be linked to the equipment rapidly, communicate with fault place by Ethernet, and simulate all kinds of state signal of the tested parts. Fuzzy reasoning was used in the fault diagnosis program. The system can locate fault at a single-board quickly.
Digital Control Method of Roll-cable Device of Electrical Carry Scraper and Its Desig
XU Yan, ZHANG Wen-xi
2005, 31(5): 42-45.
<Abstract>(48)
Abstract:
Data Collection Based on Fieldbus and Its Implementation of Network Configuratio
JIN Da-hai
2005, 31(5): 46-48.
<Abstract>(38)
Abstract:
The article analyzed the application advantage of CAN Bus in large data collection system. An universal and high precision data collection circuit based on CAN Bus was designed. The design of its hardware and software were introduced in detail. At last, the result of an application of this circuit in dam monitoring system was given.
Distributed Temperature Measurement System Based on Single Bus
WANG Sheng-li, FENG Wei, LIU Jian-ke
2005, 31(5): 49-51.
<Abstract>(38)
Abstract:
Application of Whole Analogous Judgement in Dynamic Weighing System
ZHANG Chun-mei, WANG Tao
2005, 31(5): 52-53.
<Abstract>(47)
Abstract:
Application of CORBA in Integration of Monitoning and Control System Used in Coal Mine
YAN Jun-hua, ZHU Er-li, WANG Shu
2005, 31(5): 54-56.
<Abstract>(25)
Abstract:
This paper introdused the exiting state of the mine monitoring and control System and its standard of integration. It also analyzed the structure and the excellence of the system integration of monitoring and control based on CORBA, and gave a way to realize the system.
Application of Online Monitoring System of Main Ventilator of Mine-used in Lanhua Company
LI Jun-long, FENG Yu
2005, 31(5): 57-59.
<Abstract>(48)
Abstract:
Application of Online Monitoring System of Main Ventilator of Mine-used in Lanhua Company
LI Jun-long, FENG Yu
2005, 31(5): 57-59.
<Abstract>(20)
Abstract:
Development of Centralized Monitoring and Control System of Communication Power Device and Environment Based on Exchanger
OUYANG Xi, ZHOU Qin, DING Zhen-fa
2005, 31(5): 59-60.
<Abstract>(42)
Abstract:
Application of Two-way Asynchronous Serial Communication in Harmonic Measurement
ZHAO Yong-xiu, ZHANG Bao-qua
2005, 31(5): 61-62.
<Abstract>(38)
Abstract:
The paper introduced the structure of harmonic measurement system of two-way asynchronous serial communication. A new-style interface circuit was designed with PC 16552 chip between TMS320C32 and PC. And CPLD controls receive/send signal of PC16552. It is shown that the interface can transmit data effectively and rapidly.
The Mode of Computing Meshes of Mine Safety Based on Web Service
SONG Zheng-li
2005, 31(5): 63-65.
<Abstract>(41)
Abstract:
Using PLC Technology to Realize Automatic Control and Soft Start for Belt Conveyor in Underground
CHEN Kui
2005, 31(5): 65-66.
<Abstract>(32)
Abstract:
Using PLC Technology to Realize Automatic Control and Soft Start for Belt Conveyor in Underground
KONG De-zhi, WANG Ming-ju
2005, 31(5): 67-68.
<Abstract>(50)
Abstract:
Application of PLC in Frequency-conversion Speed Regulating for AC 3-phase Asynchronous Motor
LIU Zhe
2005, 31(5): 69-70.
<Abstract>(30)
Abstract:
The application of PLC in system of frequency-conversion speed regulating for AC 3-phase asynchronous motor was introduced in the paper. The design of the system’s software and hardware were given out, and the control method and working principle were expounded.
Application of Single-chip Microcomputer in Multi-function Testing Instrument
FAN Zhao-feng, SHAO Zhong-ming
2005, 31(5): 70-71.
<Abstract>(26)
Abstract:
Using PLD to Realize Expanding Channel and Switching Circuit in High-speed Monitoring and Control System
LIU Jian-jun, WANG Zhen-tao, TANG Rong-min, MA Mei-li
2005, 31(5): 72-73.
<Abstract>(62)
Abstract:

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