Research of Mine Drainage Automatic Control System Based on PLC

2012 ◽  
Vol 619 ◽  
pp. 131-134
Author(s):  
Lan Zhu Ren ◽  
Xin Zhang ◽  
Ying Zhang ◽  
Li Liu
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Water Level ◽  
Automatic Control System ◽  
Mine Drainage ◽  
Frequency Control ◽  
Control Technology ◽  
Entire System ◽  
Economic Operation ◽  
Mine Automation

According to the development of mine automation requirements, Siemens S7-300 PLC is adopted in order to do the research of mine drainage automatic control system in this paper. Combined with frequency control technology, the system can schedule the pumps reasonably by monitoring water level and pressure signals. With failure alarm, group network communication and other functions, it’s profitable to achieve the whole mine automatic control and the economic operation of the entire system.

Application of Siemens S7-300 PLC in the Thermal Power Plant Flue Gas Desulfurization Control System

2014 ◽  
Vol 511-512 ◽  
pp. 1123-1127
Author(s):  
Mei Long Ju ◽  
Xiu Qin Zhai ◽  
Qing Zhang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Flue Gas ◽  
Thermal Power ◽  
Flue Gas Desulfurization ◽  
Industrial Control ◽  
Economic Operation ◽  
Control Computer ◽  
Industrial Control Computer

According to the characteristics of Wet Flue Gas Desulphurization (FGD), this paper brings forward the automatic control requirements and the control methods. The automatic control system is composed of a Programmable Logic Controller (PLC) and an industrial control computer (PC). The automatic control system can monitor the operating parameters of FGD system automatically and conduct automatic control and adjustment to FGD system. The PLC is responsible for the data collection and automatic control, while the PC is responsible for the surveillance of FGD system operation and the data processing through mutual communications between PC and PLC, which realizes the communication between human and machine and ensures the safe, stable and economic operation of the FGD system.

Design of Control System of Annealing Tin Machine Based on PLC

2013 ◽  
Vol 418 ◽  
pp. 70-73
Author(s):  
Jian Zhen Zhong ◽  
Wen Yong Li ◽  
Yu Yang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
High Precision ◽  
Automatic Control System ◽  
Control Technology ◽  
Automatic Program ◽  
Plc Control ◽  
Backward Control

This paper describes a method that reform the backward control system of annealing tin machine with the PLC control technology, and designs of hardware and software of the machine so that the machine have a good man-machine automatic control system. The paper focuses on the development of automatic program based on PLC, home return program, alarm program and protection program. The result shows that this control system is reliable, stable and high precision when it is used to the machine, and improving the competitiveness of the machine in the industry greatly.

Design of Automatic Control System of Floating Dock

2014 ◽  
Vol 527 ◽  
pp. 237-241
Author(s):  
Ting Guo ◽  
Rui Zhang ◽  
Shao Hua Zhou
Keyword(s):  
Control System ◽  
Research And Development ◽  
Automatic Control ◽  
Automatic Control System ◽  
Development Process ◽  
Operation Time ◽  
Control Technology ◽  
Control Functions ◽  
Modern Control

The ups and downs control is one of the important control functions of the floating dock.Using modern control technology, automatic control of the floating dock can not only reduce operation intensity, can also improve the execution efficiency, shorten the operation time, improve the safety of ships.Based on a certain type of floating dock,the article explains how the ups and downs of floating dock works and introduce the research and development process of automatic control of floating dock.

scholarly journals DESAIN AUTOMATIC CONTROL SYSTEM POMPA AIR TAWAR PADA KAPAL RAKYAT

2021 ◽  
Vol 4 ◽  
pp. 96-103
Author(s):  
Franky Tanahitumessing
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Water Level ◽  
Automatic Control System ◽  
Distribution System ◽  
Water Pump ◽  
Level Sensor ◽  
Water Pumps ◽  
Control Tool ◽  
Over Time

Freshwater supplies on people's ships are a vital need that must be met during the ship's voyage. The distribution system used without control will be troublesome for the Crew, who are always in charge of controlling the availability of water in the daily tank and running the water pump. Water pump control equipment is used to help reduce the working time of the Crew and can improve the performance efficiency of the water pump. A buoy switch is a control tool that is often used, but the buoy system will be disrupted over time. An automatic control system using a water level sensor is not familiar to use to control the water pump. From the design results of this system is more efficient than the buoy switch. Its efficiency can be seen from the degree of sensitivity to changes in water level, as well as longer service life. This system can be used to control the work of water pumps without supervision or control of the Crew, thus saving more time and the availability of water in the daily tank remains available at all times.

Current Automatic Control Technology for n-Type Macroporous Silicon Photo-Electrochemical Etching

2013 ◽  
Vol 423-426 ◽  
pp. 113-116
Author(s):  
Xiao Na Li ◽  
Guo Zheng Wang ◽  
Feng Yuan Yu ◽  
Yao Zhang ◽  
Yong Zhao Liang ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Current Density ◽  
Pore Diameter ◽  
Electrochemical Etching ◽  
Etching Time ◽  
Control Technology ◽  
Macroporous Silicon ◽  
The Relationship

The relationship between the etching current density and the macropore diameter was studied in the macroporous silicon (MPS) photo-electrochemical (PEC) etching. By measuring the depth of the channel with different etching time, the variation of critical current density with time was calculated. The importance to real-time adjust the etching current was discussed in the etching process. Based on the PSoC chip, an automatic control system for etching current was designed. The MPS growth was realized with the pore diameter constant using the automatic control system for etching current with a pre-set curve of etching current versus time.

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