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.

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.

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.

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.

Investigation of the stability of periodic motions in a nonlinear automatic control system based on the fast fourier transform

2003 ◽  
Vol 3 ◽  
pp. 297-307
Author(s):  
V.V. Denisov
Keyword(s):  
Fourier Transform ◽  
Control System ◽  
Automatic Control ◽  
Fast Fourier Transform ◽  
Automatic Control System ◽  
Resonance Phenomenon ◽  
Periodic Motions ◽  
Multiply Connected ◽  
Non Linear ◽  
The Stability

An approach to the study of the stability of non-linear multiply connected systems of automatic control by means of a fast Fourier transform and the resonance phenomenon is considered.

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