Title:
GNSS AND ACCELEROMETER REAL-TIME FUSION ALGORITHM FOR BRIDGE DEFORMATION MONITORING
Document Type and Number:
WIPO Patent Application WO/2024/016369
Kind Code:
A1
Abstract:
Disclosed is a GNSS and accelerometer real-time fusion algorithm for bridge deformation monitoring, comprising: obtaining a set of original bridge structure health deformation monitoring data of a GNSS and an accelerometer; solving the deformation monitoring data of the GNSS by means of robust adaptive Kalman filtering, and obtaining low-frequency displacement deformation data of a structural body in real time; reconstructing the obtained original monitoring data of the accelerometer by means of recursive filtering, and obtaining high-frequency displacement deformation data of the structural body in real time; and performing interpolation fusion on the two types of displacement deformation monitoring data with different frequencies to obtain real-time high-precision displacement deformation information of the structural body. According to the algorithm, integrated fusion is performed on the bridge structure health deformation monitoring data by means of the GNSS and the accelerometer, the advantages of the two sensors are complementary, so that high-precision static and dynamic displacement deformation information of a bridge is obtained in real time in a wider frequency range, and the bridge structure health deformation monitoring precision and reliability are effectively improved.
More Like This:
| WO/2019/093373 | STRAIN GAUGE AND PRODUCTION METHOD FOR STRAIN GAUGE |
| JPS5871104 | 【考案の名称】孔ひずみゲ-ジ |
Inventors:
QI CHUNYU (CN)
ZHANG YUNLONG (CN)
CHEN XUSHENG (CN)
SHI DEBIN (CN)
HU JINMIN (CN)
HE YILEI (CN)
TAN ZHAO (CN)
QIN SHOUPENG (CN)
XUE QI (CN)
WANG CHANGJIN (CN)
ZHANG YUNLONG (CN)
CHEN XUSHENG (CN)
SHI DEBIN (CN)
HU JINMIN (CN)
HE YILEI (CN)
TAN ZHAO (CN)
QIN SHOUPENG (CN)
XUE QI (CN)
WANG CHANGJIN (CN)
Application Number:
PCT/CN2022/107754
Publication Date:
January 25, 2024
Filing Date:
July 26, 2022
Export Citation:
Assignee:
CHINA RAILWAY DESIGN CORP (CN)
International Classes:
G01B7/16; G06F17/18
Domestic Patent References:
| WO2021237804A1 | 2021-12-02 |
Foreign References:
| CN111735380A | 2020-10-02 | |||
| CN113820003A | 2021-12-21 | |||
| US20210190499A1 | 2021-06-24 |
Other References:
XI-XIU WU, DAI WU-JIAO,LUO FEI-XUE: "Research on Adaptively Robust Kalman Filtering for Dynamic Deformation Monitoring Applications", JOURNAL OF DISASTER PREVENTION AND MITIGATION ENGINEERING, vol. 31, no. 1, 15 February 2011 (2011-02-15), pages 102 - 106, XP093130586
Attorney, Agent or Firm:
TIANJIN JUNYAN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
Download PDF: