公开(公告)号：US12259312B2

公开(公告)日：2025-03-25

申请号：US17866417

申请日：2022-07-15

Applicant: Sichuan University

Inventor： Jianbo Wu ,  Muchao Zhang ,  Yawen Lan

IPC: G01N17/02 ,  F17D5/06 ,  G06K19/07

Abstract: A system for monitoring internal corrosion of a pipeline based on radio-frequency identification (RFID), including a magnetizing device, a RFID tag sensor, and a reader. The magnetizing device is placed on the pipeline, and includes an armature, a first permanent magnet, a first pole shoe, a second permanent magnet and a second pole shoe. The RFID tag sensor is placed on the pipeline, and at the same side with the magnetizing device. The reader is in wireless communication connection with the RFID tag sensor through a reader antenna.

公开(公告)号：US11630034B2

公开(公告)日：2023-04-18

申请号：US17866441

申请日：2022-07-15

Applicant: Sichuan University

Inventor： Jianbo Wu ,  Ziheng Huang ,  Zhaoyuan Xu ,  Qiao Qiu ,  Jun Zheng ,  Jinhang Li ,  Zhiyuan Shi

IPC: G01M99/00 ,  G05B19/04 ,  G05B19/418 ,  G05B23/02 ,  G06F18/25 ,  G06F18/214

Abstract: A method for diagnosing and predicting operation conditions of large-scale equipment based on feature fusion and conversion, including: collecting a vibration signal of each operating condition of the equipment, and establishing an original vibration acceleration data set of the vibration signal; performing noise reduction on the original vibration acceleration data set, and calculating a time domain parameter; performing EMD on a de-noised vibration acceleration and calculating a frequency domain parameter; constructing a training sample data set through the time domain parameter and the frequency domain parameter; establishing a GBDT model, and inputting the training sample data set into the GBDT model; extracting a leaf node number set from a trained GBDT model; performing one-hot encoding on the leaf node number set to obtain a sparse matrix; and inputting the sparse matrix into a factorization machine to obtain a prediction result.