The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2023
Filed:
Nov. 05, 2021
Jiangsu University, Suzhou, CN;
Jiyong Shi, Jiangsu, CN;
Yueying Wang, Jiangsu, CN;
Xiaobo Zou, Jiangsu, CN;
Xiaowei Huang, Jiangsu, CN;
Zhihua Li, Jiangsu, CN;
Zhiming Guo, Jiangsu, CN;
Tingting Shen, Jiangsu, CN;
Xinai Zhang, Jiangsu, CN;
Di Zhang, Jiangsu, CN;
Jing Liang, Jiangsu, CN;
Jiangsu University, Jiangsu, CN;
Abstract
A method and a device for detecting plastic foreign objects with low chromaticity difference in shredded tobacco through online pulse spectral imaging are provided. The method includes three steps: negative pressure thin-layer loading of shredded tobacco, pulse line-scanning identification of shredded tobacco, and positive pressure online elimination of foreign objects. Loose shredded tobacco is formed into a fixed and continuous thin layer on a surface of a conveying cylinder under the effect of a negative pressure adsorption force. The surface of the conveying cylinder is coded by areas. An LED linear array light source containing characteristic wavelengths of plastics with low chromaticity difference emits optical pulses, and a line-scanning camera is used to obtain characteristic signals of the plastic foreign objects with low chromaticity difference efficiently in real time.