1999 Vol. 25, No. 3

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Cover Catalogue
Fault Diagnostic Expertise System for Shearers Based Upon Parameter Monitoring
Zhu Qi-jian , Li Xin-ping , Gu Zu-quan , Hou Lai-yi , Liu De-cheng
1999, 25(3): 1-3.
<Abstract>(27)
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Based upon shearer’s operating status monitoring,fault diagnostic expertise system is used to deduce the possible faults of shearers and thus improve the correctness and efficiency of maintenance.
Microcomputer-based Control System for Fuel Boiler
DONG Ai-hua, WANG Fu-zhong, YU Fa-shan, YAN You-yun, WANG Zhou
1999, 25(3): 3-5.
<Abstract>(40)
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Experiment on Automatic Speed Regulator of Drum Shearers
Wu Hong-zhi , Lu Shu-quan , Chen Chong , Tao Rong
1999, 25(3): 6-8.
<Abstract>(81)
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This article introduces an experiment of constantpower speed regulating mechanism of drum shearers which was held in laboratory,and focuses on the consistence and regulating method of the speed regulating system in which MCS51 single chip microcomputer is the core. 更多还原
Automatic Cleansing System for Steam Condenser Cooling Copper Tube
Fan Shao-sheng , Zhou A-jin , Liu She-kai
1999, 25(3): 9-12.
<Abstract>(61)
Abstract:
This article introduces a microcomputercontrolled cleansing system for steam condenser cooling tubes and puts forward the control scheme of the system and design of hardware and software.
Development of Coal Seam Injection Water Flow Monitoring and Control Device
JIANG Shu-guang, CHENG Jun-nong, LI Xu-dong, FU Qing-guo
1999, 25(3): 13-15.
<Abstract>(40)
Abstract:
This article introduces an injection water flow monitoring and control device once applied in Yaoqiao Coal Mine of Datun Coal Power Company.The device,based upon the control of single chip microcomputer,monitors multicoal seam injecton hole with efficient control simultaneously.By this the control of coal seam injection hole with efficient control simultaneously.By this the control of coal seam injection effect is achieved and improved,hence the management of coal seam injection is greatly convenienced.
1999, 25(3): 16-17.
<Abstract>(37)
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1999, 25(3): 18-19.
<Abstract>(26)
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Security Measurements for Bank Credit Card Database
Song Jin-ping
1999, 25(3): 20-22.
<Abstract>(53)
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Enlightened by credit card alarming apparatus of the bank, the author suggests setting a second secret code. 7 measurements for security are described to ensure the use of credit card.
1999, 25(3): 22-23.
<Abstract>(41)
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1999, 25(3): 24-25.
<Abstract>(51)
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Software Development of MicrocomputerBased Monitoring System for Laowuji Coal Preparation Plant
Ma Jie
1999, 25(3): 26-27.
<Abstract>(46)
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This article introduces the developing details of Laowuji Preparation Plant Monitoring and Control System from software developing environment, structure and developing implementation and shows the program block diagram.
1999, 25(3): 28-28.
<Abstract>(64)
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1999, 25(3): 29-30.
<Abstract>(26)
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1999, 25(3): 30-31.
<Abstract>(75)
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1999, 25(3): 32-33.
<Abstract>(38)
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1999, 25(3): 34-35.
<Abstract>(35)
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1999, 25(3): 36-37.
<Abstract>(20)
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1999, 25(3): 37-37.
<Abstract>(34)
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Novel IGBT Chopper for Locomotive Haulage for Industrial and Mining Use
Xu Xiao-feng
1999, 25(3): 38-40.
<Abstract>(30)
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A new type IGBT chopper for locomotive haulage is introduced in the paper, which uses gatecontrolled IGBT as the switch instead of forced currentswitching circuit in siliconcontrolled chopper. The control of the chopper is achieved through single chip microcomputer. The paper also deals with current protection strategy employed in chopper’s speed regulating system.
1999, 25(3): 40-42.
<Abstract>(41)
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Research in Application of Wavelength Division Multiplex Technologyin Bureau or Mine Remote Image Transmission System
Li Ju
1999, 25(3): 42-43.
<Abstract>(52)
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Optic cable is ideal when wide band transmission channel is required to implement realtime dual transmission of bureau, mine remote picture and image. Based upon existing optic fiber cable telecommunication, this article puts forward using wavelength division multiplex technology for remote image transmission without adding communication line.
8098 Single Chip Microcomputer Control System for Pressure Regulating and Speed Control Winders
Wang Xin, Du Qing-nan, Song Yun-zhong, Niu Zhi-min, Cui Jin-yue
1999, 25(3): 44-46.
<Abstract>(36)
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The author introduces the hardware and software design of electric control device to control BSJ2G Pressure Regulating and Speed Control Winders by 8098 single chip microcomputer, and stresses the measurement to improve system reliability from hardware and software. 更多还原
1999, 25(3): 47-48.
<Abstract>(42)
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1999, 25(3): 49-50.
<Abstract>(31)
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1999, 25(3): 51-53.
<Abstract>(36)
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1999, 25(3): 54-55.
<Abstract>(32)
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1999, 25(3): 56-57.
<Abstract>(17)
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