2003 Vol. 29, No. 1

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Cover Catalogue
Fault Diagnosis of GDJ-I High-voltage Asynchronous Motor and Development of Its Comprehensive Protector
WANG Yu-bin , MENG Xiang-zhong
2003, 29(1): 1-3.
<Abstract>(23)
Abstract:
By detecting currents of positive phase sequence, negative phase sequence, zero phase sequence and taking their overcurrent degree as the basis for determining fault of high voltage motor, realized the comprehensive protection for high voltage motor.
A New P-FUZZY-PID Controller with Switching Based on Fuzzy Rules
LI Zu-xin , ZHANG Yu-feng , SHI Xin-ling
2003, 29(1): 4-6.
<Abstract>(27)
Abstract:
In accordance with the shortages of the common P FUZZY PID multi model control switching from one model to another, a new P FUZZY PID controller with switching based on error and one level error difference was proposed. Finally, its dynamic states, the ability of anti interference and robustness were given by simulation.
Study on Auto-tracking Circuit of Frequency of a New Ultrasonic Generator
GUO Yong-dong, LIU Chun-sheng
2003, 29(1): 7-8.
<Abstract>(37)
Abstract:
The paper introduced the auto tracking system of frequency of a new ultrasonic generator and discussed in details the operating principle and composition.
Study on Braking System of Computer Control of Downward Belt Conveyor
LI Wen-hong , ZHU Lu-qun , XIAO Lin-jing
2003, 29(1): 9-11.
<Abstract>(20)
Abstract:
In view of existing problems of overspeed and slippage of downward belt conveyor, the paper introduced a realization method of computer control system, the theory analysis and study of the system were also developed. The control process of the system for starting, stopping, slippage condition and the result of the system running were discussed.
Study on Remote Monitoring System of Mud Grouting and Leaking in Working Face
GONG Zhi-jie
2003, 29(1): 12-13.
<Abstract>(19)
Abstract:
Remote monitoring system of mud grouting and leaking in working face was studied, and structure diagram of the monitoring system was also given, the principle of flow meter and densimeter of mud, and single chip microcomputer system were discussed. Finally, soft diagram of the system was given in the paper.
Application of PLC in System of Automatic Loading and Unloading in Rock Dumping Yard
CHEN Yong-li, ZHANG Zhen-bao, CHEN Peng, YANG Wen-fei
2003, 29(1): 14-15.
<Abstract>(24)
Abstract:
The paper introduced the appliation of PLC used in system of automatic loading and unloading in rock dumping yard, proposed the hardware and software. By the running, it was equitable and reliable.
Microcomputer Control of Protection Device of High-voltage Motor for Shovel
HONG Zhen-nan, SHENG Yi-fa
2003, 29(1): 16-18.
<Abstract>(23)
Abstract:
The paper introduced a method of fault analysis of high voltage motor by use of measurement of positive and negative sequence current, and discribed the structure of hardware and software of the protection device with single chip microcomputer.
Application of SA866AE Three-phase PWM Signal Generator in AC/AC FC
YANG Qing-jiang, JIAO Wen-liang
2003, 29(1): 18-20.
<Abstract>(15)
Abstract:
The paper introduced the working principle of three phase PWM chip SA866AE for a special purpose, and the three phase low frequency signal generator device with sine wave which applied in the AC/AC frequency converter with this chip was developed. The experiment result indicated that the structure of the signal generator device is simple, amplitude value and the phase symmetrical degree is good, and the parameter adjustment is convenient and accurate, the function is reliable.
Information Management System of Material Storage Based on Client/Server
LI Run-zhi, TAN Tong-de, WU Zhi-ping
2003, 29(1): 21-23.
<Abstract>(9)
Abstract:
The paper introduced a information management system of material storage based on Client/Ser ver. Unique and practical thought of design is adopted to realize a set of operations after the materials were received. The system included operations of checking in, examining, approving, checking out and returning on Internet. The security management was assured excellently through applying the access control strategy which is supported by “two phase” setting for right. The database management system with Client/Server model as well as the concurrent controlling resolved by lock method based on affair realized many operators access this system at the same time.
Design and Realization of Auto Encasement Control System Based on ISP
WANG Li-qin, SHEN Li
2003, 29(1): 24-26.
<Abstract>(14)
Abstract:
Design and Realization of a Web-based Real-time Monitoring System
ZHOU Qiang, XU Shi-fa
2003, 29(1): 26-28.
<Abstract>(19)
Abstract:
The Web based real time monitoring system based on multi layer architecture technology can display the real time information of the enterprise control system on the remote browser. The software architecture models were analysed and the architecture of the Web based real time monitoring system was introduced in this paper. The paper presented the design and realization of the system.
Application of Hydraulic Device with High-reliability in Mine Hoist
LI Ai-min, YU Neng-huan, HE Hong-zhi
2003, 29(1): 29-30.
<Abstract>(34)
Abstract:
The paper introduced the characteristics, working principle of the hydraulic device with high reliability for disk brake of hoist and its application prospect.
Development and Application of Middle-driving Locomotive of Requency Conversion and Regulating Speed
REN You-zhou, SU Qi-liang, XIN Xian-qi, ZHANG Ju
2003, 29(1): 31-32.
<Abstract>(15)
Abstract:
Design of Soundplay of Environment Parameters of Mine Multimedia Monitoring and Control System
AN Wei-peng, LI Chang-qing, ZHAO Jian-gui, YU Jin-xia
2003, 29(1): 33-34.
<Abstract>(10)
Abstract:
The multimedia monitoring and control system of mining safety and production is mainly used to monitor the safety and enviroment parameters in mine and to control production apparatus. By designing soundplay, the system solved how to play sound of environment parameters and how to handle the alarm beyond the limit.
Intelligent Detecting System of Coal Level
WANG Qian-jin, FENG Wei-mi
2003, 29(1): 35-36.
<Abstract>(17)
Abstract:
Remote Monitoring and Control System Based on Socket Technology Used in Coal Mine
SU Bing-miao , HUANG Jing
2003, 29(1): 37-39.
<Abstract>(17)
Abstract:
The paper mainly discussed how to develop a remote monitoring and control system based on Socket used in coal mine and multi threading technology, stressly introduced the scheme of the system and the design of program for the server.
Design and Application of Tracking and Enquiring System for People Underground Based on Web
SUN Ya-jun, WU Zhao-he, HUANG Xing, GU Jun, WANG Li-jua
2003, 29(1): 39-40.
<Abstract>(43)
Abstract:
Study on Free Port Communication between SIEMENS S7-200 CPU 226XM PLC and Computer
CHANG Ruo-kui, YANG Jie-ming, ZHANG Wang-lin, LI Jian-min, WU Xue-ya
2003, 29(1): 40-42.
<Abstract>(14)
Abstract:
User's Charge Management of Computer Room for Archival Borrow
HAN Yu-feng, LI Guo-hui
2003, 29(1): 43-45.
<Abstract>(29)
Abstract:

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