Title:
LOW-SPEED IMPACT POSITION IDENTIFICATION METHOD BASED ON FUZZY ENTROPY AND ARTIFICIAL FISH SWARM ALGORITHM
Document Type and Number:
WIPO Patent Application WO/2021/077625
Kind Code:
A1
Abstract:
A low-speed impact position identification method based on fuzzy entropy and an artificial fish swarm algorithm. Said method comprises the steps: arranging distributed fiber Bragg grating sensors; processing a response signal of a fiber Bragg grating sensor corresponding to an impact point to be detected, and calculating the fuzzy entropy thereof; positioning the area in which the point to be detected is located, selecting sample impact points at a boundary of the area, using an impact hammer to impact same with the same energy, and calculating the fuzzy entropy of response signals of sensors; constructing a relational model of the distances between the sample impact points at the boundary of the area and the start sensor of the boundary and the difference between the fuzzy entropy of the response signals of the start sensor and of the termination sensor of the boundary; and determining the specific position of the impact point to be detected on the basis of an artificial fish swarm algorithm. Said method does not require much prior knowledge, has good portability and a wide application condition, and can accurately identify the impact position.
Inventors:
HUANG JIWEI (CN)
ZENG JIE (CN)
BAI YUFANG (CN)
KONG FANJIN (CN)
CHENG ZHUMING (CN)
LU LI (CN)
YU JUNSONG (CN)
ZENG JIE (CN)
BAI YUFANG (CN)
KONG FANJIN (CN)
CHENG ZHUMING (CN)
LU LI (CN)
YU JUNSONG (CN)
Application Number:
PCT/CN2020/070054
Publication Date:
April 29, 2021
Filing Date:
January 02, 2020
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
International Classes:
G01B11/00
Foreign References:
| CN106482639A | 2017-03-08 | |||
| CN109406627A | 2019-03-01 | |||
| CN108061635A | 2018-05-22 | |||
| CN107657242A | 2018-02-02 | |||
| US20080129982A1 | 2008-06-05 |
Other References:
MARTIN ATZMUELLER, ALVIN CHIN, FREDERIK JANSSEN, IMMANUEL SCHWEIZER, CHRISTOPH TRATTNER: "ICIAP: International Conference on Image Analysis and Processing, 17th International Conference, Naples, Italy, September 9-13, 2013. Proceedings", vol. 6464 Chap.34, 7 December 2010, SPRINGER, Berlin, Heidelberg, ISBN: 978-3-642-17318-9, article YAZDANI DANIAL; NADJARAN TOOSI ADEL; MEYBODI MOHAMMAD REZA: "Fuzzy Adaptive Artificial Fish Swarm Algorithm", pages: 334 - 343, XP047400838, 032548, DOI: 10.1007/978-3-642-17432-2_34
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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