公开(公告)号：US20220283022A1

公开(公告)日：2022-09-08

申请号：US17637684

申请日：2020-08-21

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Yuan MAO ,  Islam ASHRY

IPC: G01H9/00 ,  G01D5/353 ,  A01G7/00

Abstract: An integrated system for detecting a red palm weevil (RPW), farm fire, and soil moisture includes an optical fiber configured to be extending to a tree, and a distributed acoustic sensor (DAS) box connected to the optical fiber. The DAS box is configured to process first to third different optical signals reflected from the optical fiber, to determine a presence of the RPW from the first optical signal, a temperature at a location along the optical fiber from the second optical signals, and a moisture at a location around the tree from the third optical signal.

公开(公告)号：US20230160743A1

公开(公告)日：2023-05-25

申请号：US17913003

申请日：2021-03-09

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Islam ASHRY ,  Boon Siew OOI ,  Yuan MAO

IPC: G01H9/00 ,  G01D5/353 ,  G06N3/0464 ,  G06N3/048 ,  H04R23/00

CPC classification number: G01H9/004 ,  G01D5/35361 ,  G01D5/35316 ,  G06N3/0464 ,  G06N3/048 ,  H04R23/008

Abstract: A fiber optic distributed acoustic sensing (DAS) system for detecting a red palm weevil (RPW) includes an optical fiber configured to be wrapped around a tree and a DAS box connected to the optical fiber. The DAS box includes a processing unit that is configured to receive a filtered Rayleigh signal reflected by the optical fiber, and run the filtered Rayleigh signal through a neural network system to determine a presence of the RPW in the tree.

公开(公告)号：US20230314731A1

公开(公告)日：2023-10-05

申请号：US18022773

申请日：2021-09-10

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon S. OOI ,  Omar ALKHAZRAGI ,  Abderrahmen TRICHILI ,  Islam ASHRY ,  Tien Khee NG ,  Mohamed-Slim ALOUINI

IPC: G02B6/42 ,  H04B10/11

CPC classification number: G02B6/4203 ,  H04B10/11

Abstract: A compounded light-focusing optical element is configured to focus light, and the compounded light-focusing optical element includes a body having a first, flat, end face and a second, curved end face, the second, curved end face being opposite to the first, flat end face, and plural optical fibers extending through the body, from the first, flat end face to the second, curved end face. The plural optical fibers are fused to each other to form the body, and end faces of the plural optical fibers, corresponding to the second, curved end face, are pointing in different directions.

公开(公告)号：US20230121430A1

公开(公告)日：2023-04-20

申请号：US17914039

申请日：2021-03-08

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Islam ASHRY ,  Yuan MAO

IPC: H04B10/2581 ,  G02B6/02

Abstract: A hybrid sensing-communication system includes a multicore optical fiber that includes first and second cores, a first communication device optically coupled to a first end of the first core of the multicore optical fiber, a second communication device optically coupled to a second end of the first core of the multicore optical fiber, a first sensing device optically coupled to a first end of the second core of the multicore optical fiber, and a second sensing device optically coupled to a second end of the second core of the multicore optical fiber. The first and second communication devices exclusively exchange communication data along the first core, the first and second sensing devices exclusively exchange sensing data along the second core, and the communication data is different from the sensing data.

公开(公告)号：US20220299481A1

公开(公告)日：2022-09-22

申请号：US17603685

申请日：2020-04-20

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Islam ASHRY ,  Yuan MAO

IPC: G01N29/24 ,  G01D5/353 ,  G01H9/00 ,  H04B10/071 ,  G01N29/14 ,  G01N29/48 ,  G01N33/00

Abstract: A method for determining tree infestation includes placing an optical fiber around a trunk of a tree; recording with a distributed acoustic sensor (DAS) box a Rayleigh signal reflected from the tree, along the optical fiber; processing the Rayleigh signal to obtain a processed signal; calculating a signal-to-noise ratio (SNR) of the processed signal for the tree; and comparing the SNR to a threshold value and counting an alarm if the SNR is larger than the threshold value. The SNR is defined as a ratio between (1) a maximum value of a processed signal and (2) a minimum value of the processed signal.

公开(公告)号：US20210096106A1

公开(公告)日：2021-04-01

申请号：US17050116

申请日：2019-04-24

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Yuan MAO ,  Islam ASHRY

IPC: G01N29/24 ,  G01N33/00 ,  G01H9/00 ,  G01N29/44 ,  G01N29/46

Abstract: An optical fiber distributed acoustic sensor (DAS) system for detecting a red palm weevil and/or its larvae inside a tree. The system includes an optical fiber that is configured to be placed next to a tree; and a DAS box optically connected to the optical fiber and configured to receive a reflected light from the optical fiber. The DAS box includes electronics that extracts from the reflected light a frequency in a range of [400 Hz, 4 kHz], and sends a message indicating a presence of the red palm weevil and/or its larvae inside the tree.