工矿自动化

The Research on Grasping of Automatic Synchronization Parallel Switch on Opportunity with Single-chip Microcomputer

FU Zhou-xing, LI Zhong, GUO Ying-na

2000, 26(6): 1-3.

<Abstract>(63)

Abstract:
Single chip microcomputer system bases on synchronization conditions, samples and calculates difference of angle between waiting synchronization generator and network ontime, forecasts synchronization opportunity by means of linear interpolation method, grasps rapidly and reliably synchronization opportunity, realizes the automatic synchronization operation of the generator and electric network.

A Linear Bridge Circuit Based on PI Regulator

LI Ai-guo

2000, 26(6): 4-6.

<Abstract>(50)

Abstract:
This paper presents a linear bridge circuit based on PI regulator. Its output voltage varies lineally with the resistor value of the sensor, and its adjustment is simple, so the bridge circuit suits the situations which needs high accuracy measuring of temperature with thermistor sensors.

Study of Measuring Method for Metal Impact Ware

ZHAO Ya-wei , ZI Ke-ming , YANG Yan-bo

2000, 26(6): 6-8.

<Abstract>(63)

Abstract:
Imapct ware has more ratio in metal material impact ware. It is momentous meaning that how to carry on impact ware testing in laboratory. In this paper through analysis and calculating impact ware capacity, the way to continuously, accurately and timely testing ware capacity was discussed.

Improved SDT Algorithm and Its Application in Process Data Compressio

WANG Zheng-hong

2000, 26(6): 9-11.

<Abstract>(31)

Abstract:
The importance and the features of process data compression are described in this paper. The main principle of SDT (Swinging Door Trending) algorithm and the improved SDT is also introduced, the software diagrams of offline compression, online compression and signal reconstruction are given. In the end, the application of SDT algorithm is presented and the performance of the improved SDT algorithm is analyzed.

Application of MATLAB Software in the Fuzzy Control System for Water Level in Boiler

CHEN Xin-hua

2000, 26(6): 12-14.

<Abstract>(133)

Abstract:
The control system for water level in boiler is designed by fuzzy control theory. Using MATLAB software to prove and simulate the fuzzy control system, and in order to realize the best real time control for water level in boiler.

How to Improve Reliability of Monitoring and Control System Based on SDT Engineering Computer

FANG Ming-huang , FANG Ming-ye

2000, 26(6): 15-17.

<Abstract>(90)

Abstract:
Apply modern theory of reliability to research the feasibility on design, technique and technology of monitoring and control system for hoist in mine. And point forward some measures to improve system’s reliability.

Analysis of Electric-control System for Boom Tunnelling Machine and Study on its Reliability

WU Chong

2000, 26(6): 17-19.

<Abstract>(34)

Abstract:

Study of Intelligent Multi-parameter Instruments Used in Mines

SUN Pei-de

2000, 26(6): 20-22.

<Abstract>(62)

Abstract:
To accurately, quick and automatically determine the airflow velocity and airflow rate in a tunnel, gas permeability of coalseam, gas flow velocity and flow rate in a borehole as well as the influencing radius of borehole due to gas drainage from coalseam, intelligent instruments have been successfully developed based on single chip microcontroller 80C31 that can be used to achieve data collection, analysis and display output. The multi parameter instruments can be widelly used in coal industry, metallurgical industry, air condition and ventilation and exploitation of coal gas, etc.

Development of Intelligent and Airtight Detecting Device

ZHAO Ji-yong

2000, 26(6): 22-24.

<Abstract>(54)

Abstract:

The Fuzzy Control System for Electrodialysis

WANG Yu-bi

2000, 26(6): 25-26.

<Abstract>(44)

Abstract:

Study of PLC Monitoring and Control System for Mine Used Switch Element

YANG Jin-zhong

2000, 26(6): 27-28.

<Abstract>(55)

Abstract:

Anti-noise Broadcasting Telephone Communication System and Its Application in Coal Mine

ZHANG Bi-xia

2000, 26(6): 29-30.

<Abstract>(71)

Abstract:

Application of Automation System for Electricity Dispatching in Huaibei Coal (Group )Co.,Ltd.

MIAO Xue-fu

2000, 26(6): 31-33.

<Abstract>(64)

Abstract:
The paper introduced the hardware disposition and foundational function of automation system for electricity dispatching in Huaibei Coal (Group) Co.,Ltd., and analyzed the economic benefit produced probably by it, makes some beneficial discussion in using the modern technical ways to strengthen the management of electricity use, reducing the cost of ton coal and ensuring the electrical wire netting to run safety in coal mine.

Selection Design and Application of Safety and Production Monitoring and Control System for Tucheng Coal Mine

SHE Jun, HU Shao-mei, YU Zhao-xing, HE Pei-qua

2000, 26(6): 33-34.

<Abstract>(72)

Abstract:

Designing of Safety Information Management System Used in Coal Mine

SONG Jin-ling , WANG Hui , LIU Yu-ying , ZHANG Hong

2000, 26(6): 35-36.

<Abstract>(90)

Abstract:
The safety information management system used in coal mine has many functions, such as security information inputting, inquiring, printing and LED displaying, is designed under network environment with VB, SQL Server, Formula One, etc, in terms of the security management practice in coal mine. The application of this system makes it possible for the automation of safety management practice of coal mine.

Model KJ56 Monitoring and Control System Used in Coal Mine

ZHOU Jian-chao, WANG Ai-bing

2000, 26(6): 37-38.

<Abstract>(77)

Abstract:

Model KJ56 Monitoring and Control System Used in Coal Mine

ZHENG Feng-long , ZHENG Xiao-tian , SUN Yu-bao

2000, 26(6): 39-41.

<Abstract>(29)

Abstract:
The design methods, main properties and features are introduced in this paper. The system has simple structure and convenient safeguard. It is a comprehensive dispatching and monitoring and control system and it is adapted to middle or small coal mine.

Research of the Application of Industry Controlling Configuration Based on Internet Technology in Coal Enterprise

YU Guo-fang, LI Ming, HUA Gang

2000, 26(6): 41-43.

<Abstract>(33)

Abstract:

Development and Application of Read-write System for General IC Card

SHEN Lin, CHEN Zhi-feng, HU Ju

2000, 26(6): 44-45.

<Abstract>(77)

Abstract:

Utilisation of Flame-proof Dieseal Rubber-tyred Geared Locomotive and Its Prospect

XU Ya-lei, YANG De-cai, ZHANG Nan-xin, LI Kai-sheng