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公开(公告)号：US10565860B1
公开(公告)日：2020-02-18
申请号：US16360250
申请日：2019-03-21
IPC分类号： G08B29/24 , G08B13/196
摘要： In a general aspect, an offline system detects new motion zones for a motion detection system. In some examples, observed channel response data is obtained from a motion detection system. The observed channel response data is associated with a plurality of subcarriers for each wireless link over a period of time. Estimated channel response data is generated for each wireless link. Transitions between zones of activity are identified in the estimated channel response data for each of the plurality of subcarriers for each wireless link. A new motion zone of the motion detection system is detected based on the estimated channel response data and the identified transitions.
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公开(公告)号：US10460581B1
公开(公告)日：2019-10-29
申请号：US16413165
申请日：2019-05-15
IPC分类号： G08B13/19 , G06N20/10 , G06F17/18 , G08B29/18 , G08B13/196
摘要： In a general aspect, a method is presented for determining a motion-zone confidence. In some aspects, the method includes obtaining, from a database of a motion detection system, ranges of motion-zone parameters associated with respective motion zones in a space between wireless communication devices. The method also includes analyzing the ranges of motion-zone parameters to identify, for one or more of the motion zones, overlapping ranges of motion-zone parameters and non-overlapping parameter ranges of motion-zone parameters. The method additionally includes storing, in the database of the motion detection system, the overlapping and non-overlapping ranges of motion-zone parameters. The overlapping and non-overlapping ranges of motion-zone parameters are used to identify one of the motion zones based on a motion event detected by the motion detection system.
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3.发明授权公开(公告)号：US10459074B1
公开(公告)日：2019-10-29
申请号：US16399657
申请日：2019-04-30
摘要： In a general aspect, a method for determining a location of motion detected by wireless communication devices in a wireless communication network includes obtaining a set of motion indicator values associated with a time frame. The set of motion indicator values indicates motion detected from wireless links during the time frame, each motion indicator value associated with a respective wireless link. The method also includes identifying a subset of the wireless links based on a magnitude of their respective motion indicator values relative to other motion indicator values in the set of motion indicator values. The method additionally includes generating count values for the wireless communication devices connected to the wireless communication network during the time frame. The method further includes generating a probability vector based on the count values and comprising values for the connected wireless communication devices.
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公开(公告)号：US11579703B2
公开(公告)日：2023-02-14
申请号：US16425310
申请日：2019-05-29
摘要： In a general aspect, a motion detection system detects gestures (e.g., human gestures) and initiates actions in response to the detected gestures. In some aspects, channel information is obtained based on wireless signals transmitted through a space by one or more wireless communication devices. A gesture recognition engine analyzes the channel information to detect a gesture (e.g., a predetermined gesture sequence) in the space. An action to be initiated in response to the detected gesture is identified. An instruction to perform the action is sent to a network-connected device associated with the space.
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公开(公告)号：US10004076B1
公开(公告)日：2018-06-19
申请号：US15706193
申请日：2017-09-15
发明人： Dustin Griesdorf , Stephen Arnold Devison , Mohammad Omer , Yunfeng Piao , Oleksiy Kravets , Tajinder Manku , Christopher Vytautas Olekas
CPC分类号： H04W72/0453 , G01P13/00 , G01S1/02 , G01S3/02 , G01S11/02 , H04B17/309 , H04W64/00
摘要： In a general aspect, a wireless communication channel is selected based on signal quality metrics. In some aspects, a first wireless communication device receives a first set of signals based on wireless signals transmitted through a space on a first wireless communication channel from a second wireless communication device. A signal quality metric value is computed based on the first set of signals, and a second wireless communication channel is selected based on a determination that the value of the signal quality metric does not meet a quality criterion for a motion detection process. The first wireless communication device receives a second set of signals based on wireless signals transmitted through the space on the second wireless communication channel from the second wireless communication device, and the motion detection process is executed to detect motion of an object in the space based on the second set of signals.
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公开(公告)号：US20230125109A1
公开(公告)日：2023-04-27
申请号：US18145941
申请日：2022-12-23
摘要： In a general aspect, a motion detection system detects gestures (e.g., human gestures) and initiates actions in response to the detected gestures. In some aspects, channel information is obtained based on wireless signals transmitted through a space by one or more wireless communication devices. A gesture recognition engine analyzes the channel information to detect a gesture (e.g., a predetermined gesture sequence) in the space. An action to be initiated in response to the detected gesture is identified. An instruction to perform the action is sent to a network-connected device associated with the space.
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公开(公告)号：US10743143B1
公开(公告)日：2020-08-11
申请号：US16413114
申请日：2019-05-15
摘要： In a general aspect, a method is presented for determining a motion zone for a location of motion detected by wireless signals. In some aspects, the method includes obtaining a time series of statistical parameters derived from sets of channel response data. The method also includes identifying time intervals in the time series of statistical parameters, each time interval associated with a respective motion zone in the space. The method additionally includes determining, by analyzing multiple time windows within each of the time intervals, ranges of motion-zone parameters associated with each respective motion zone. The method further includes storing, in a database of a motion detection system, the ranges of motion-zone parameters for the respective motion zones. The ranges of motion-zone parameters are used to identify one of the motion zones based on a motion event detected by the motion detection system.
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公开(公告)号：US10109168B1
公开(公告)日：2018-10-23
申请号：US15815199
申请日：2017-11-16
摘要： In a general aspect, detected motion is localized based on channel response characteristics. In some aspects, channel responses based on wireless signals transmitted through a space between wireless communication devices are obtained. A motion detection process is executed to detect motion of an object in the space based on the channel responses, and the channel responses are analyzed to identify a location of the detected motion within one of a plurality of regions within the space.
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公开(公告)号：US11363417B2
公开(公告)日：2022-06-14
申请号：US16915279
申请日：2020-06-29
摘要： In a general aspect, a method is presented for determining a motion zone for a location of motion detected by wireless signals. In some aspects, the method includes obtaining a time series of statistical parameters derived from sets of channel response data. The method also includes identifying time intervals in the time series of statistical parameters, each time interval associated with a respective motion zone in the space. The method additionally includes determining, by analyzing multiple time windows within each of the time intervals, ranges of motion-zone parameters associated with each respective motion zone. The method further includes storing, in a database of a motion detection system, the ranges of motion-zone parameters for the respective motion zones. The ranges of motion-zone parameters are used to identify one of the motion zones based on a motion event detected by the motion detection system.
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10.发明申请公开(公告)号：US20200178033A1
公开(公告)日：2020-06-04
申请号：US16669177
申请日：2019-10-30
IPC分类号： H04W4/029
摘要： In a general aspect, a method for determining a location of motion detected by wireless communication devices in a wireless communication network includes obtaining motion data associated with a first time frame. The method also includes identifying a first wireless link, of a plurality of wireless links, based on a magnitude of a motion indicator value associated with the first wireless link relative to the other motion indicator values in a set of motion indicator values. The method additionally includes generating a first probability vector based on a predetermined map and the first wireless link and obtaining a second probability vector generated from motion data associated with a prior time frame. The method further includes determining, by operation of a data processing apparatus, a location of motion detected from wireless signals exchanged during the first time frame.
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