Title :
A speed monitoring method in steel pipe of 3PE-coating process based on industrial Charge-coupled Device
Author :
Yang Xu ; Zong Da-qiao ; Ding Da-wei ; Wen Bo ; Tong Chao-nan
Author_Institution :
Sch. of Autom. & Electr. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
In the process of three layer PE coating(3PE-coating), the speed of steel pipe is a key parameter in the control loop of main drive system, which has direct relationship with performance of control system as well as production quality and efficiency. However, due to forward displacement and rotation characteristic of steel pipe, the traditional contact speed measuring methods are no longer useful under this circumstance. Therefore, a speed monitoring method based on industrial Charge-coupled Device (CCD) is proposed, including image acquisition processing, image calibration, image edge detection and speed calculation. Meanwhile, by industrial application, this algorithm proves to be valid, and the result shows that the speed measuring system in steel pipe of 3PE-coating, not only can detect the speed rapidly and accurately, also have robustness within the influence of the electric magnetic disturbance, dust and high frequency noise in the industrial fields.
Keywords :
CCD image sensors; coating techniques; edge detection; pipes; velocity control; 3PE-coating process; CCD; control loop; image acquisition processing; image calibration; image edge detection; industrial charge-coupled device; pipe forward displacement; pipe rotation characteristic; production efficiency; production quality; speed calculation; speed monitoring method; steel pipe; three layer PE coating process; Calibration; Charge coupled devices; Coatings; Image edge detection; Monitoring; Steel; Velocity measurement; 3PE-coating; charge-coupled Device (CCD); edge detection; image processing;
Conference_Titel :
Control Conference (CCC), 2014 33rd Chinese
Conference_Location :
Nanjing
DOI :
10.1109/ChiCC.2014.6897102
