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公开(公告)号:US20250124528A1
公开(公告)日:2025-04-17
申请号:US18901664
申请日:2024-09-30
Applicant: NEC Laboratories America, Inc.
Inventor: Yangmin DING , Ting WANG , Zhuocheng JIANG , Yue TIAN , Sarper OZHARAR
Abstract: Disclosed are twin-based systems and methods for predicting solar power generation and optimizing power generation and distribution processes. Employed are a digital twin model of a solar power plant, which includes detailed representations of various components, such as solar panels, inverters, and transformers, as well as real-time weather data and historical data. This advantageously allows for accurate simulations of plant performance under various weather conditions and operational scenarios. Our systems and methods Incorporate novel machine learning algorithms that are trained on historical and real-time data from the digital twin model, weather data, solar power generation data, and other relevant factors. These algorithms utilize an advanced ensemble learning approach, which combines multiple predictive models, such as deep learning, support vector machines, and decision trees, to achieve higher accuracy and robustness in predicting solar power generation
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公开(公告)号:US20230375342A1
公开(公告)日:2023-11-23
申请号:US18319463
申请日:2023-05-17
Applicant: NEC Laboratories America, Inc.
Inventor: Sarper OZHARAR , Ting WANG , Yue TIAN , Yangmin DING
IPC: G01C5/06 , G01K11/3206
CPC classification number: G01C5/06 , G01K11/3206
Abstract: Disclosed are systems and methods to determine barometric pressure 1) using multiple low-cost pressure sensors located at known heights instead of a single high-cost sensor; 2) determines an actual pressure value—not by averaging multiple sensors but rather optimizing an expected error in each individual one of them and utilize their known sensor heights thereby defining a new error function; 3) our approach is scalable, i.e. the number of sensors can be increased, and multiple sensors can be grouped together into smaller cells such that each group of cell can be corrected separately, and can even be corrected among themselves. Finally, our systems and methods according to the present disclosure can advantageously be integrated with a distributed fiber optic sensing (DFOS) system via acoustic modems thereby providing extremely wide-area external, or interior buildings pressure readings.
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公开(公告)号:US20230370753A1
公开(公告)日:2023-11-16
申请号:US18317035
申请日:2023-05-12
Applicant: NEC Laboratories America, Inc.
Inventor: Sarper OZHARAR , Yue TIAN , Yangmin DING , Zuocheng JIANG , Ting WANG
IPC: H04Q9/00
CPC classification number: H04Q9/00 , H04Q2209/886
Abstract: An acoustic modem for operating with a distributed fiber optic sensing (DFOS) system that generates acoustic signals that are detected by the DFOS system. The acoustic modem is powered by energy harvesters includes one or more sensors that detect environmental information that is encoded in the acoustic signals for further reception by the DFOS system. The acoustic modem may include several vibrator elements that provide a vibration signals imparted on the DFOS system fiber sensor.
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公开(公告)号:US20230370310A1
公开(公告)日:2023-11-16
申请号:US18317032
申请日:2023-05-12
Applicant: NEC Laboratories America, Inc.
Inventor: Sarper OZHARAR , Yue TIAN , Yangmin DING , Zhuocheng JIANG , Ting WANG
CPC classification number: H04L27/0002 , G08C17/02 , H04B3/52
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 and such information may be transmitted from a fixed location or a mobile vehicle.
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15.
公开(公告)号:US20230145781A1
公开(公告)日:2023-05-11
申请号:US17978845
申请日:2022-11-01
Applicant: NEC Laboratories America, Inc.
Inventor: Yangmin DING , Sarper OZHARAR , Yue TIAN , Ting WANG
IPC: G01H9/00 , H04B10/80 , H04B10/2537
CPC classification number: G01H9/004 , H04B10/808 , H04B10/2537
Abstract: Remote terminal field device monitoring using distributed fiber optic sensing (DFOS) comprising a length of optical sensor fiber extending into the remote terminal, said remote terminal including one or more field devices located therein, wherein said length of optical sensor fiber located in the remote terminal includes one or more fiber loops formed in the length of optical sensor fiber, said one or more fiber loops respectively positioned proximate to the one or more field device(s) located in the remote terminal, a DFOS interrogator in optical communication with the optical sensor fiber and configured to generate optical pulses, introduce the generated pulses into the length of optical sensor fiber, and receive backscattered signals from the one or more fiber loops formed in the length of the optical sensor fiber, and an intelligent analyzer configured to analyze DFOS data received by the DFOS interrogator and determine from the backscattered signals, environmental activity occurring at the one or more fiber loops located within the remote terminal; operating the DFOS system and collecting/analyzing/reporting the environmental activity determined at the one or more fiber loops located within the remote terminal.
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公开(公告)号:US20230130788A1
公开(公告)日:2023-04-27
申请号:US17958415
申请日:2022-10-02
Applicant: NEC Laboratories America, Inc.
Inventor: Sarper OZHARAR , Ting WANG , Yue TIAN , Yangmin DING , Philip JI , Shaobo Han , Ming-Fang Huang , Tingfeng Li
IPC: G01H9/00 , G01D5/353 , H04B10/071
Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously sense/monitor outdoor facilities and structures including outdoor cabinets containing fiber optic facilities in which the cabinet/fiber optic cable contained therein are configured to provide superior acoustic sensing. Further outdoor facilities and structures that are monitored include manhole structures. Superior DFOS/DAS monitoring results are obtained by employing a machine learning-based analysis method that employs a temporal relation network (TRN).
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17.
公开(公告)号:US20210318167A1
公开(公告)日:2021-10-14
申请号:US17228675
申请日:2021-04-12
Applicant: NEC Laboratories America, Inc.
Inventor: Sarper OZHARAR , Yue TIAN , Yangmin DING , Ting WANG
IPC: G01H9/00
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 determination of natural frequency(ies) of civil infrastructures.
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公开(公告)号:US20210318166A1
公开(公告)日:2021-10-14
申请号:US17227336
申请日:2021-04-11
Applicant: NEC Laboratories America, Inc.
Inventor: Yangmin DING , Yue TIAN , Sarper OZHARAR , Ting WANG
Abstract: An advance in the art is made according to aspects of the present disclosure directed to distributed fiber optic sensing systems (DFOS), methods, and structures that advantageously provide the continuous monitoring of aerial cables using distributed acoustic sensing (DAS) and operational modal analysis (OMA).
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公开(公告)号:US20250131064A1
公开(公告)日:2025-04-24
申请号:US18901647
申请日:2024-09-30
Applicant: NEC Laboratories America, Inc.
Inventor: Yangmin DING , Yanchao WANG , Ting WANG
IPC: G06F18/241 , G06Q10/0639
Abstract: Disclosed are systems, methods, and structures that enhance advanced metering infrastructure (AMI) event classification with graph neural networks (GNNs) in which AMI data is represented as a graph, where each meter is a node and connections between nodes represent the physical or functional relationship between meters. As a result, our systems and methods capture dependency information between different meters and use this information to predict events and anomalies.
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公开(公告)号:US20250130074A1
公开(公告)日:2025-04-24
申请号:US18901783
申请日:2024-09-30
Applicant: NEC Laboratories America, Inc.
Inventor: Yangmin DING , Sarper OZHARAR , Zhuocheng JIANG , Yue TIAN , Ting WANG
IPC: G01D5/353
Abstract: Disclosed are systems, methods, and structures that employ distributed fiber sensing that utilizes existing fiber cables for detecting tree events. Our inventive systems and methods can detect when a tree or other types of vibration occur on the telecom cable or poles, creating a high-resolution spatial profile of the cable. Systems and methods according to aspects of the present disclosure distinguish between tree events and other vibrations, such as hammer strikes on a utility pole, by employing Information Noise Contrastive Estimation (InfoNCE) and contrastive learning. Our inventive approach accurately differentiates between different types of vibrations and identifies patterns specific to tree events.
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