-
公开(公告)号：US20240135797A1
公开(公告)日：2024-04-25
申请号：US18485217
申请日：2023-10-11
Applicant: NEC Laboratories America, Inc.
Inventor： Yangmin DING , Sarper OZHARAR , Yue TIAN , Ting WANG
Abstract: A data-driven street flood warning system that employs distributed fiber optic sensing (DFOS)/distributed acoustic sensing (DAS) and machine learning (ML) technologies and techniques to provide a prediction of street flood status along a telecommunications fiber optic cable route using the DFOS/DAS data and ML models. Operationally, a DFOS/DAS interrogator collects and transmits vibrational data resulting from rain events while an online web server provides a user interface for end-users. Two machine learning models are built respectively for rain intensity prediction and flood level prediction. The machine learning models serve as predictive models for rain intensity and flood levels based on data provided to them, which includes rain intensity, rain duration, and historical data on flood levels.
-
22.发明公开公开(公告)号：US20230375375A1
公开(公告)日：2023-11-23
申请号：US18319466
申请日：2023-05-17
Applicant: NEC Laboratories America, Inc.
Inventor： Yangmin DING , Yue TIAN , Sarper OZHARAR , Ting WANG
CPC classification number: G01D5/35358 , G06T7/70 , G06T7/13 , G01H9/004 , G01L1/242 , G06T2207/10024
Abstract: A radio-controlled, two-way acoustic modem for operating with a distributed fiber optic sensing (DFOS) system including circuitry that receives radio signals including configuration information, configures the modem to operate according to the configuration information, and generate acoustic signals that are detected by the DFOS system. The acoustic modem includes one or more sensors that detect environmental information that is encoded in the acoustic signals for further reception by the DFOS system. The received configuration information may change the operating times, sensors or other operating aspects of the modem as desired an such information may be transmitted from a fixed location or a mobile vehicle.
-
23.发明申请公开(公告)号：US20230125456A1
公开(公告)日：2023-04-27
申请号：US17968265
申请日：2022-10-18
Applicant: NEC Laboratories America, Inc.
Inventor： Yangmin DING , Yue TIAN , Sarper OZHARAR , Ting WANG
Abstract: Aspects of the present disclosure describe dynamic road traffic noise mapping using DFOS over a telecommunications network that enables mapping of road traffic-induced noise at any observer location. DFOS is used to obtain instant traffic data including vehicle speed, volume, and vehicle types, based on vibration and acoustic signal along the length of a sensing fiber along with location information. A sound pressure level at a point of interest is determined, and traffic data associated with such point is incorporated into a reference noise emission database and a wave propagation theory for total sound pressure level prediction and mapping. Real-time wind speed using DFOS—such as distributed acoustic sensing (DAS)—is obtained to provide sound pressure adjustment due to the wind speed.
-
公开(公告)号：US20220329068A1
公开(公告)日：2022-10-13
申请号：US17717112
申请日：2022-04-10
Applicant: NEC Laboratories America, Inc.
Inventor： Yangmin DING , Yuanda XU , Yue TIAN , Sarper OZHARAR , Ting WANG
Abstract: Distributed fiber optic sensing (DFOS) and artificial intelligence (AI) systems and methods for performing utility pole hazardous event localization that advantageously identify a utility pole that has undergone a hazardous event such as being struck by an automobile or other detectable impact. Systems and methods according to aspects of the present disclosure employ machine learning methodologies to uniquely identify an affected utility pole from a plurality of poles. Our systems and methods collect data using DFOS techniques in telecommunication fiber optic cable and use an AI engine to analyze the data collected for the event identification. The AI engine recognizes different vibration patterns when an event happens and advantageously localizes the event to a specific pole and location on the pole with high accuracy. The AI engine enables analyses of events in real-time with greater than 90% accuracy.
-
公开(公告)号：US20220329052A1
公开(公告)日：2022-10-13
申请号：US17717088
申请日：2022-04-10
Applicant: NEC Laboratories America, Inc.
Inventor： Yangmin DING , Sarper OZHARAR , Yuandu XU , Yue TIAN , Ting WANG
Abstract: Systems and methods for performing the dynamic anomaly localization of utility pole aerial/suspended/supported wires/cables by distributed fiber optic sensing. In sharp contrast to the prior art, our inventive systems and methods according to aspects of the present disclosure advantageously identify a “location region” on a utility pole supporting an affected wire/cable, thereby permitting the identification and reporting of service personnel that are uniquely responsible for responding to such anomalous condition(s).
-
Patent Agency Ranking
公开(公告)号：US20220283001A1
公开(公告)日：2022-09-08
申请号：US17684348
申请日：2022-03-01
Applicant: NEC LABORATORIES AMERICA, INC
Inventor： Yangmin DING , Sarper OZHARAR , Yue TIAN , Ting WANG , Yuanda XU
Abstract: Distributed fiber optic sensing (DFOS)/distributed acoustic sensing (DAS) techniques coupled with frequency domain decomposition (FDD) are employed to determine the presence of 120 HZ operating power frequency to determine when street lights are energized and on thereby providing continuous status monitoring of the operational status of street lights and locating affected street lights at a particular utility pole location.
-
27.发明申请公开(公告)号：US20210318165A1
公开(公告)日：2021-10-14
申请号：US17227328
申请日：2021-04-11
Applicant: NEC Laboratories America, Inc.
Inventor： Sarper OZHARAR , Yue TIAN , Yangmin DING , Ting WANG
Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS)-distributed acoustic sensing (DAS) based systems, methods, and structures that advantageously enable and/or facilitate the monitoring of civil infrastructures via acoustic wave speed measurements.
-
公开(公告)号：US20240127681A1
公开(公告)日：2024-04-18
申请号：US18485211
申请日：2023-10-11
Applicant: NEC Laboratories America, Inc.
Inventor： Sarper OZHARAR , Yue TIAN , Yangmin DING , Ting WANG
Abstract: A solar powered, self-contained DFOS extender that includes a wide-angle camera and a microphone. The DFOS extender monitors the perimeter constantly or at predetermined time intervals both visually and acoustically. It analyses these signals and if an alarming event is detected (such as an animal, a human, a car, or a truck seen or heard), then the DFOS extender generates a coded vibration via its in-built acoustic modem. These coded vibrations are detected by the fiber and an event log is generated. Consequently, a trespasser or false alarms (animals) are detected before they are within detectable distance of the underground DFOS optical sensor fiber. Advantageously, our DFOS extender can be placed in critical locations along a border where an increased detection range is desired and may later be relocated/reinstalled at other locations as well.
-
29.发明公开公开(公告)号：US20230366725A1
公开(公告)日：2023-11-16
申请号：US18316199
申请日：2023-05-11
Applicant: NEC Laboratories America, Inc.
Inventor： Yue TIAN , Yangmin DING , Sarper OZHARAR , Shaobo HAN , Ting WANG , Jiatong LI , Zuocheng JIANG , Yuanda XU
Abstract: A distributed fiber optic sensing (DFOS) / distributed acoustic sensing (DAS) system and method employing a fiber optic sensor cable that collects vibrational data of individual utility poles suspending the fiber optic sensor cable and stores the vibrational data in a central office (CO). Machine learning (ML) models are developed, trained, and utilized to analyze vibrational features of the utility poles and determine their integrity. Additionally, DFOS / DAS systems and methods according to the present disclosure determine the location(s) of fiber coils that exist along a length of a fiber optic sensor cable.
-
30.发明公开公开(公告)号：US20230366703A1
公开(公告)日：2023-11-16
申请号：US18316208
申请日：2023-05-11
Applicant: NEC Laboratories America, Inc.
Inventor： Yue TIAN , Yangmin DING , Sarper OZHARAR , Shaobo HAN , Ting WANG , Jiatong LI , Zuocheng JIANG , Yuanda XU
CPC classification number: G01D5/35358 , G01H9/004 , G06N20/00
Abstract: A distributed fiber optic sensing (DFOS)/distributed acoustic sensing (DAS) system and method employing a fiber optic sensor cable that collects vibrational data of individual utility poles suspending the fiber optic sensor cable and stores the vibrational data in a central office (CO). Machine learning (ML) models are developed, trained, and utilized to analyze vibrational features of the utility poles and determine their integrity. Additionally, DFOS/DAS systems and methods according to the present disclosure determine the location(s) of fiber coils that exist along a length of a fiber optic sensor cable.
-
-
-
-
-
-
-
-
-
Search Results
37
records
(took 0.018 seconds)
