公开(公告)号：US20240011594A1

公开(公告)日：2024-01-11

申请号：US18054496

申请日：2022-11-10

Applicant: HIFI ENGINEERING INC.

Inventor： Seyed Ehsan JALILIAN ,  Mehri OWJIMEHR

IPC: F16L55/48 ,  G01S11/14 ,  G01H9/00

CPC classification number: F16L55/48 ,  G01S11/14 ,  G01H9/004

Abstract: An object moving along a conduit having multiple channels is tracked. Each channel defines a portion of a length of the conduit. For each channel, acoustic data, generated from one or more acoustic signals detected at the channel in response to movement of the object along the conduit, is generated. For at least one channel, the acoustic data obtained for the at least one channel is cross-correlated with the acoustic data obtained for at least one other one of the channels. Based on the cross-correlating, a position of the object within the conduit is determined.

公开(公告)号：US20180209453A1

公开(公告)日：2018-07-26

申请号：US15739336

申请日：2016-06-27

Applicant: Hifi Engineering Inc.

Inventor： John HULL ,  Seyed Ehsan JALILIAN ,  Derek LOGAN

IPC: F16B2/24 ,  G02B6/46

Abstract: A clamp for clamping optical fiber to a tube. The clamp has a body portion coupled at one end to a first arm and at an opposing end to a second arm, and a resilient portion to permit the clamp to elastically deform from a closed state in which the clamp is fastened around the tube to an open state in which the clamp is radially moveable off the tube. At least one of the body portion, the first arm and the second arm has a clamping surface to clamp a portion of the optical fiber against the tube when the clamp is fastened around the tube, and a clamping mechanism operable to extend at least part of the clamping surface towards the tube when the clamp is secured to the tube to increase a clamping force applied by the clamping surface.

公开(公告)号：US20230186001A1

公开(公告)日：2023-06-15

申请号：US18065486

申请日：2022-12-13

Applicant: HIFI ENGINEERING INC.

Inventor： Seyed Ehsan JALILIAN ,  Sahil DHANKHAD ,  Shayan ZAMANI ,  Arne DANKERS ,  Mehri OWJIMEHR ,  Yuhong LIU

IPC: G06F30/27 ,  G01M3/24 ,  G01D5/353 ,  G06N3/045

CPC classification number: G06F30/27 ,  G01M3/243 ,  G01D5/35316 ,  G06N3/045

Abstract: Methods, systems, and techniques for simulating an event. Simulated event data comprising a simulated event, and authentic raw data, are both obtained. The simulated event data and the authentic raw data are blended to form blended data that comprises the simulated event. The blended data may be fed into an event detection system, such as a pipeline leak detection system, for testing purposes.

公开(公告)号：US20230133154A1

公开(公告)日：2023-05-04

申请号：US18057663

申请日：2022-11-21

Applicant: HIFI ENGINEERING INC.

Inventor： Seyed Ehsan JALILIAN ,  Mehri OWJIMEHR ,  Arne DANKERS ,  Yuhong LIU

IPC: F16L55/48 ,  G01D5/26

Abstract: There is described a method of determining a position of a pipeline inspection gauge (PIG) in a fluid conduit. While the PIG is moving through the fluid conduit, one or more sensors positioned along the fluid conduit are used to detect one or more signals. Parameter data is extracted from the detected one or more signals. The parameter data includes one or more parameters of the detected one or more signals as a function of time and position along the fluid conduit. PIG movement data indicative of a position of the PIG in the fluid conduit as a function of time is generated using the parameter data.

公开(公告)号：US20240184006A1

公开(公告)日：2024-06-06

申请号：US18065192

申请日：2022-12-13

Applicant: Hifi Engineering Inc.

Inventor： Seyed Ehsan JALILIAN ,  Yuhong LIU

IPC: G01V1/36 ,  G01H9/00 ,  G01V1/00 ,  G01V1/22

CPC classification number: G01V1/36 ,  G01H9/004 ,  G01V1/001 ,  G01V1/226

Abstract: Methods, systems, and techniques for wind detection. A first acoustic signal generated by an acoustic sensor positioned to be actuated in response to wind is measured. An average value of the first acoustic signal over a sampling duration is determined. The average value may be a median, and the sampling duration may be at least 15 minutes. If the average value of the first acoustic signal satisfies a wind detection threshold, the first acoustic signal is determined to be generated by the wind.

公开(公告)号：US20230102764A1

公开(公告)日：2023-03-30

申请号：US18057644

申请日：2022-11-21

Applicant: HIFI ENGINEERING INC.

Inventor： Seyed Ehsan JALILIAN ,  Mehri OWJIMEHR ,  Arne DANKERS ,  Yuhong LIU

IPC: F16L55/48

Abstract: There is described a method of determining a position of a pipeline inspection gauge (PIG) in a fluid conduit. While the PIG is moving through the fluid conduit, one or more sensors positioned along the fluid conduit are used to detect one or more signals. Parameter data is extracted from the detected one or more signals. The parameter data includes one or more parameters of the detected one or more signals as a function of time and position along the fluid conduit. PIG movement data indicative of a position of the PIG in the fluid conduit as a function of time is generated using the parameter data.

公开(公告)号：US20180231658A1

公开(公告)日：2018-08-16

申请号：US15753528

申请日：2016-08-22

Applicant: Hifi Engineering Inc.

Inventor： Seyed Ehsan JALILIAN ,  Arne DANKERS

IPC: G01S15/08 ,  G01H9/00 ,  G01S7/521 ,  G01S7/54

Abstract: Methods and systems for estimating a distance between an acoustic sensor and an acoustic reflector in a conduit are disclosed. One such method includes using the acoustic sensor to measure a combined acoustic signal that comprises an originating acoustic signal propagating along the conduit and an echo signal. The echo signal is generated by the originating acoustic signal reflecting off the acoustic reflector after propagating past the acoustic sensor. A frequency domain representation of the combined acoustic signal is determined and the echo signal is identified by identifying in the frequency domain representation periodic oscillations having a peak-to-peak difference between 0.75 Hz and 1500 Hz. The distance between the acoustic sensor and the acoustic reflector is determined from the velocity of the echo signal and a time required for the echo signal to propagate between the acoustic sensor and the acoustic reflector.

公开(公告)号：US20180149528A1

公开(公告)日：2018-05-31

申请号：US15575981

申请日：2016-05-19

Applicant: Hifi Engineering Inc.

Inventor： John HULL ,  Seyed Ehsan JALILIAN

IPC: G01K11/32 ,  G01K1/20 ,  G01B11/16 ,  G01N25/16 ,  G01H9/00

CPC classification number: G01K11/32 ,  G01B11/161 ,  G01H9/004 ,  G01K1/20 ,  G01N21/45 ,  G01N25/16

Abstract: Described are methods and systems using optical fiber interferometry to sense interference causing events in a region of interest and differentiate between a strain event and a thermal event. Other methods and systems relate to the use of optical fiber interferometry for determining temperature offset in a region of interest and using the determined temperature offset for determining temperature in the region of interest.