scholarly journals High Accuracy V-Bending Process Control with an On-Line Database and Modified Fuzzy Models

1997 ◽  
Vol 40 (1) ◽  
pp. 157-162 ◽  
Author(s):  
Ming YANG ◽  
Naoki KOJIMA ◽  
Ken-ichi MANABE ◽  
Hisashi NISHIMURA
Keyword(s):  
Process Control ◽  
High Accuracy ◽  
Fuzzy Models ◽  
Bending Process ◽  
On Line

An Auto-Adaptive GA-PID Control Method Based on CMAC Net

2011 ◽  
Vol 219-220 ◽  
pp. 1139-1144
Author(s):  
Wei Qiang Yue ◽  
Li Qiang Jin ◽  
Chuan Xue Song
Keyword(s):  
Process Control ◽  
Pid Control ◽  
Pid Controller ◽  
Control Method ◽  
Nonlinear Process ◽  
High Accuracy ◽  
Pattern Control ◽  
Nonlinear Process Control ◽  
On Line ◽  
Feed Forward Controller

This paper aimed at solving the difficulty of nonlinear process control by classical PID controller. The author structured a GA-PID controller taking advantage of the multipoint optimizing and fast compute speed of GA, which can get the optimal PID parameters by on-line turning. At the same time, the author introduced a CMAC feed-forward controller which make full use of the high precision to approach nonlinearly object of CMAC. Combine them, a concurrent pattern control method appear, which synthesize advantages of two controllers and is more fit for nonlinear process. The simulation result indicated that the method has high accuracy and good robustness.

Design and Implement of High-Accuracy On-Line Metal Thickness Measuring Instrument Based on NiosII Processor

2013 ◽  
Vol 834-836 ◽  
pp. 930-934
Author(s):  
Shou Liang Yang ◽  
Bao Liang Yang
Keyword(s):  
Eddy Current ◽  
Low Cost ◽  
High Accuracy ◽  
Resolving Power ◽  
Current Sensor ◽  
Measuring Instrument ◽  
Precision Data ◽  
Eddy Current Sensor ◽  
Metal Thickness ◽  
On Line

The paper proposes a new design of high-accuracy On-line Metal Thickness Measuring Instrument, which was based on EP2C20 series FPGA chip, through adding NiosII soft processor and other interfaces to FPGA, equipped with high precision data collection system and TFT LCD module and so on. The key hardware blocks schematics and components of the RC Oscillation Circuit,eddy current sensor Circuit,rectifier and filter Circuit,A/D converting circuit,FPGA Circuit are described,software flow charts and sample codes are given. According to practice, The measurement range of this system is 1~100 mm and the resolving power is 0.1 μm. degree of linearity is 1%, The system has many features including small volume of hardware, low cost, high detecting precision, convenient operating, high intelligent and so on, leading to broad and bright future. Key words: NiosII processor; eddy current sensor; metal thickness

Diagnostic errors and repetitive sequential classifications in on-line process control by attributes

2010 ◽  
Vol 201 (1) ◽  
pp. 231-238 ◽  
Author(s):  
Roberto da Costa Quinino ◽  
Emerson C. Colin ◽  
Linda Lee Ho
Keyword(s):  
Process Control ◽  
Diagnostic Errors ◽  
On Line ◽  
Line Process
Sign in / Sign up

Export Citation Format

Share Document