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公开(公告)号：US12044790B2
公开(公告)日：2024-07-23
申请号：US18211567
申请日：2023-06-19
申请人： Sai Deepika Regani , Yuqian Hu , Beibei Wang , K.J. Ray Liu , Oscar Chi-Lim Au
发明人： Sai Deepika Regani , Yuqian Hu , Beibei Wang , K.J. Ray Liu , Oscar Chi-Lim Au
IPC分类号： G01S5/02
CPC分类号： G01S5/0273 , G01S5/0278 , G01S2205/02
摘要： Methods, apparatus and systems for correlation-based wireless monitoring are described. For example, a described method comprises: detecting and monitoring motion of a first object in a first sensing task based on a first motion information (MI) computed based on a first time series of channel information (TSCI) associated with a first device pair; detecting and monitoring motion of a second object in a second sensing task based on a second MI computed based on a second TSCI associated with a second device pair; computing a correlation score based at least partially on: the first TSCI, the second TSCI, the first MI and the second MI; detecting the first object and the second object as a same object when the correlation score is greater than a first threshold; and detecting the first object and the second object as two different objects when the correlation score is less than a second threshold.
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2.发明公开公开(公告)号：US20230333201A1
公开(公告)日：2023-10-19
申请号：US18211567
申请日：2023-06-19
申请人： Sai Deepika Regani , Yuqian Hu , Beibei Wang , K.J. Ray Liu , Oscar Chi-Lim Au
发明人： Sai Deepika Regani , Yuqian Hu , Beibei Wang , K.J. Ray Liu , Oscar Chi-Lim Au
IPC分类号： G01S5/02
CPC分类号： G01S5/0273 , G01S5/0278 , G01S2205/02
摘要： Methods, apparatus and systems for correlation-based wireless monitoring are described. For example, a described method comprises: detecting and monitoring motion of a first object in a first sensing task based on a first motion information (MI) computed based on a first time series of channel information (TSCI) associated with a first device pair; detecting and monitoring motion of a second object in a second sensing task based on a second MI computed based on a second TSCI associated with a second device pair; computing a correlation score based at least partially on: the first TSCI, the second TSCI, the first MI and the second MI; detecting the first object and the second object as a same object when the correlation score is greater than a first threshold; and detecting the first object and the second object as two different objects when the correlation score is less than a second threshold.
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公开(公告)号：US20230273291A1
公开(公告)日：2023-08-31
申请号：US18144321
申请日：2023-05-08
申请人： Muhammed Zahid Ozturk , Sai Deepika Regani , Beibei Wang , K.J. Ray Liu , Hung-Quoc Duc Lai , Yi Han , Oscar Chi-Lim Au
发明人： Muhammed Zahid Ozturk , Sai Deepika Regani , Beibei Wang , K.J. Ray Liu , Hung-Quoc Duc Lai , Yi Han , Oscar Chi-Lim Au
CPC分类号： G01S7/006 , G01S13/003 , H04W24/08
摘要： Methods, apparatus and systems for wireless monitoring with improved accuracy are described. In one example, a described method comprises: transmitting a wireless signal through a wireless multipath channel of a venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue; receiving the wireless signal through the wireless multipath channel, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and the motion; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal; performing a classification of a sliding time window by analyzing channel information (CI) of the TSCI in the sliding time window; computing a motion information (MI) for the sliding time window based on the TSCI and the classification of the sliding time window; and monitoring the motion of the object based on the MI.
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公开(公告)号：US20220299619A1
公开(公告)日：2022-09-22
申请号：US17838244
申请日：2022-06-12
申请人： Yuqian Hu , Beibei Wang , Sai Deepika Regani , Peng Zan , Chenshu Wu , Dan Bugos , Xiaolu Zeng , Hung-Quoc Duc Lai , K. J. Ray Liu , Oscar Chi-Lim Au
发明人： Yuqian Hu , Beibei Wang , Sai Deepika Regani , Peng Zan , Chenshu Wu , Dan Bugos , Xiaolu Zeng , Hung-Quoc Duc Lai , K. J. Ray Liu , Oscar Chi-Lim Au
摘要： Methods, apparatus and systems for wireless sensing based on linkwise motion statistics (link-MS) are described. In one example, a described method comprises: determining a plurality of heterogeneous wireless devices of a wireless sensing system in a venue; determining a plurality of device-links each of comprises two of the heterogeneous wireless devices, one functioning as a transmitter and the other functioning as a receiver; for each respective device-link of the plurality of device-links, transmitting a respective wireless signal from a respective transmitter of the respective device-link through a wireless multipath channel of the venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue, receiving the respective wireless signal by a respective receiver of the respective device-link through the wireless multipath channel, wherein the respective received wireless signal differs from the respective transmitted wireless signal due to the wireless multipath channel of the venue and the motion of the object, obtaining a respective time series of channel information (TSCI) of the wireless multipath channel based on the respective received wireless signal of the respective device-link, computing a respective link-MS for the respective device-link based on the respective TSCI; performing a sensing task associated with the motion of the object based on at least one of: all the TSCI or all the link-MS; and computing a location in the venue associated with the sensing task based on all the link-MS.
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公开(公告)号：US20240125888A1
公开(公告)日：2024-04-18
申请号：US18391529
申请日：2023-12-20
申请人： Guozhen Zhu , Beibei Wang , Yuqian Hu , Chenshu Wu , Xiaolu Zeng , K.J. Ray Liu , Oscar Chi-Lim Au
发明人： Guozhen Zhu , Beibei Wang , Yuqian Hu , Chenshu Wu , Xiaolu Zeng , K.J. Ray Liu , Oscar Chi-Lim Au
IPC分类号： G01S5/02
CPC分类号： G01S5/0273 , G01S5/0278
摘要： Methods, apparatus and systems for wireless human-nonhuman motion detection are described. For example, a described method comprises: transmitting a wireless signal through a wireless multipath channel of a venue; receiving the wireless signal through the wireless multipath channel, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel that is impacted by a motion of an object in the venue; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal; computing an autocorrelation function (ACF) based on the TSCI; computing at least one ACF feature of the ACF or a function of the ACF; computing an ACF statistics, a motion statistics, a speed statistics, and a gait statistics based on the at least one ACF feature of the ACF or the function of the ACF; and in response to a determination that the motion is detected, classifying the object associated with the detected motion as a human or a non-human, based on: the ACF statistics, the motion statistics, the speed statistics, and the gait statistics.
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6.发明申请公开(公告)号：US20220303167A1
公开(公告)日：2022-09-22
申请号：US17838231
申请日：2022-06-12
申请人： Beibei Wang , Yuqian Hu , Yi Han , Hung-Quoc Duc Lai , David N. Claffey , Chun-I Chen , K.J. Ray Liu , Oscar Chi-Lim Au
发明人： Beibei Wang , Yuqian Hu , Yi Han , Hung-Quoc Duc Lai , David N. Claffey , Chun-I Chen , K.J. Ray Liu , Oscar Chi-Lim Au
摘要： Methods, apparatus and systems for device identification and qualification for wireless sensing are described. In one example, a described system comprises: a transmitter configured to transmit a wireless signal through a wireless multipath channel of a venue, wherein the wireless multipath channel is impacted by a movement of an object in the venue; a receiver configured to receive the wireless signal through the wireless multipath channel, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and the movement of the object; and a processor. The processor is configured for: obtaining a number of time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal, computing a time series of motion analytics (TSMA) based on the number of TSCI, computing an information of a target device based on the TSMA. The target device is one of: the transmitter, the receiver, or an additional device in the venue. The information of the target device comprises at least one of: an identity, a name, a label, a tag, or a location.
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公开(公告)号：US20210173046A1
公开(公告)日：2021-06-10
申请号：US17180766
申请日：2021-02-20
申请人： Sai Deepika Regani , Beibei Wang , Min Wu , K. J. Ray Liu , Oscar Chi-Lim Au
发明人： Sai Deepika Regani , Beibei Wang , Min Wu , K. J. Ray Liu , Oscar Chi-Lim Au
摘要： Methods, apparatus and systems for wireless motion recognition are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel that is impacted by a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, tracking the motion of the object based on the TSCI to generate a gesture trajectory of the object, and determining a gesture shape based on the gesture trajectory and a plurality of pre-determined gesture shapes.
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8.发明授权公开(公告)号：US12066572B2
公开(公告)日：2024-08-20
申请号：US17539058
申请日：2021-11-30
申请人： Sai Deepika Regani , Qinyi Xu , Beibei Wang , Min Wu , Oscar Chi-Lim Au , K. J. Ray Liu
发明人： Sai Deepika Regani , Qinyi Xu , Beibei Wang , Min Wu , Oscar Chi-Lim Au , K. J. Ray Liu
CPC分类号： G01S7/412 , G01S7/006 , G01S7/415 , G01S13/003 , G06N3/04 , G06F2218/00
摘要： Methods, apparatus and systems for monitoring an object expression are described. In one example, a described apparatus in a venue comprises a receiver and a processor. The receiver is configured for: receiving a wireless signal from a transmitter through a wireless multipath channel that is impacted by an expression of an object in the venue, wherein the object has at least one movable part and is expressed in the expression with respect to a setup in the venue; and obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal received by the receiver. The processor is configured for computing information associated with the object based at least partially on the TSCI obtained when the object is expressed in the expression, and performing, based on the information associated with the object, a task associated with at least one of the object and the venue.
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9.发明申请公开(公告)号：US20220091231A1
公开(公告)日：2022-03-24
申请号：US17539058
申请日：2021-11-30
申请人： Sai Deepika Regani , Qinyi Xu , Beibei Wang , Min Wu , Oscar Chi-Lim Au , K. J. Ray Liu
发明人： Sai Deepika Regani , Qinyi Xu , Beibei Wang , Min Wu , Oscar Chi-Lim Au , K. J. Ray Liu
摘要： Methods, apparatus and systems for monitoring an object expression are described. In one example, a described apparatus in a venue comprises a receiver and a processor. The receiver is configured for: receiving a wireless signal from a transmitter through a wireless multipath channel that is impacted by an expression of an object in the venue, wherein the object has at least one movable part and is expressed in the expression with respect to a setup in the venue; and obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal received by the receiver. The processor is configured for computing information associated with the object based at least partially on the TSCI obtained when the object is expressed in the expression, and performing, based on the information associated with the object, a task associated with at least one of the object and the venue.
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公开(公告)号：US20210311166A1
公开(公告)日：2021-10-07
申请号：US17352185
申请日：2021-06-18
申请人： Chenshu Wu , Beibei Wang , Peng Zan , Sai Deepika Regani , Xiaolu Zeng , Hung-Quoc Duc Lai , K. J. Ray Liu , Oscar Chi-Lim Au
发明人： Chenshu Wu , Beibei Wang , Peng Zan , Sai Deepika Regani , Xiaolu Zeng , Hung-Quoc Duc Lai , K. J. Ray Liu , Oscar Chi-Lim Au
摘要： Methods, apparatus and systems for wirelessly monitoring a micro motion of an object are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel and a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each channel information (CI) of the TSCI comprises N1 CI components; selecting N2 CI components from the N1 CI components based on a first analysis of the N1 CI components; computing a micro-motion (MM) statistics based on the N2 selected CI components and the first analysis; monitoring the motion of the object based on a second analysis of the MM statistics; performing a task based on the first analysis and the second analysis; and generating a response based on the task, the first analysis and the second analysis.
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