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公开(公告)号：US20240175974A1
公开(公告)日：2024-05-30
申请号：US18388584
申请日：2023-11-10
发明人： Jimmy ENGSTRÖM
CPC分类号： G01S5/145 , G01S5/02521 , G01S5/02685 , G01S2205/02
摘要： An indoor positioning device includes memory circuitry, processor circuitry and an interface. The indoor positioning device is configured to obtain, from one or more sensors of a wireless device, sensor data associated with the wireless device at a first position. The indoor positioning device is configured to obtain, from one or more beacons, measurement data indicative of a distance parameter of the wireless device at the first position. The indoor positioning device is configured to adjust the measurement data by predicting, based on the sensor data and the measurement data, an estimated position of the wireless device. The indoor positioning device is configured to determine, based on the adjusted measurement data and the estimated position of the wireless device, an updated position and/or an updated distance parameter associated with the wireless device.
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公开(公告)号：US20240019532A1
公开(公告)日：2024-01-18
申请号：US17813209
申请日：2022-07-18
申请人： Dell Products L.P.
发明人： Vinicius Michel Gottin , Eric L. Caron , Nalinkumar Mistry , Pablo Nascimento da Silva , Paulo Abelha Ferreira
IPC分类号： G01S5/02
CPC分类号： G01S5/0294 , G01S5/02685
摘要： Real-time event detection is performed on nodes in an environment using position data that is not available to a node in real time but is delayed. A node performs real time event detection by predicting a position of the node based at least in part on delayed position data. The delayed position data is aligned to other sensor data. Aligning the position data may include predicting a position based on dead reckoning and/or a machine learning model. One or more collections of data, each collection including sensor data and predicted position data, is input to a model that performs event detection.
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公开(公告)号：US12131647B2
公开(公告)日：2024-10-29
申请号：US17504337
申请日：2021-10-18
IPC分类号： G08G1/00 , B60T7/12 , B60T7/18 , B62B3/14 , B62B5/00 , B62B5/04 , G01C21/12 , G01C21/20 , G01H11/08 , G01P3/48 , G01S5/00 , G01S5/02 , G01S5/14 , G01S11/06 , G05D1/00 , G05D1/02 , G06Q10/00 , G06Q10/06 , G01C17/00 , G01P3/02 , G08B13/14 , G08B21/02 , G08B29/24
CPC分类号： G08G1/207 , B60T7/12 , B60T7/18 , B62B3/14 , B62B3/1404 , B62B5/00 , B62B5/0423 , G01C21/12 , G01C21/20 , G01C21/206 , G01H11/08 , G01P3/48 , G01S5/014 , G01S5/02685 , G01S5/14 , G01S11/06 , G05D1/028 , G06Q10/00 , G06Q10/06 , G08G1/00 , B62B3/1416 , B62B5/0096 , G01C17/00 , G01P3/02 , G08B13/1427 , G08B13/1436 , G08B21/0261 , G08B29/24
摘要： Examples of systems and methods for locating movable objects such as carts (e.g., shopping carts) are disclosed. Such systems and methods can use dead reckoning techniques to estimate the current position of the movable object. Various techniques for improving accuracy of position estimates are disclosed, including compensation for various error sources involving the use of magnetometer and accelerometer, and using vibration analysis to derive wheel rotation rates. Also disclosed are various techniques to utilize characteristics of the operating environment in conjunction with or in lieu of dead reckoning techniques, including characteristic of environment such as ground texture, availability of signals from radio frequency (RF) transmitters including precision fix sources. Such systems and methods can be applied in both indoor and outdoor settings and in retail or warehouse settings.
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公开(公告)号：US20230184879A1
公开(公告)日：2023-06-15
申请号：US18089331
申请日：2022-12-27
CPC分类号： G01S5/10 , G01S5/02216 , G01S5/02685 , G01S5/0036
摘要： An apparatus, method and computer program is described. The method can include receiving a first measurement report from a first communication node of a mobile communication system. The first measurement report can include downlink measurement data generated at a user device in response to a positioning reference signal sent by the first communication node. The method can further include receiving a second measurement report from the first communication node. The second measurement report can include uplink measurement data generated at the first communication node in response to an uplink reference signal sent by the user device. The method can also include determining an integrity of the measurement data based on a comparison of said uplink and downlink measurement data and setting an integrity verification notification in accordance with the determined integrity.
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公开(公告)号：US11902902B2
公开(公告)日：2024-02-13
申请号：US18167432
申请日：2023-02-10
申请人： Snap Inc.
CPC分类号： H04W52/0261 , G01S5/0063 , G01S5/0252 , G01S5/02685 , G06T11/00 , G06T13/00 , H04W64/003 , G01S19/48
摘要： Systems, methods, and computer readable media that schedules requests for location data of a mobile device, where the methods include selecting a first positioning system based on a power requirement, a latency requirement, and an accuracy requirement, and determining whether a first condition is satisfied for querying the first positioning system. The method further comprises in response to a determination that the first condition is satisfied, querying the first positioning system for first position data. The method further comprises in response to a determination that the first condition is not satisfied, selecting a second positioning system based on the power requirement, the latency requirement, and the accuracy requirement, determining whether a second condition is satisfied for querying the second positioning system, and in response to a determination that the second condition is satisfied, querying the second positioning system for second position data.
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6.发明公开公开(公告)号：US20240012090A1
公开(公告)日：2024-01-11
申请号：US17859174
申请日：2022-07-07
申请人： ThirdEye Gen, Inc
发明人： Nick Cherukuri
CPC分类号： G01S5/02685 , G01S19/49
摘要： A tracking system that works through walls, below grade, and at long range is provided, which may be utilized as a first responder tracking system. The system combines UWB (Ultrawideband) with AI-enhanced IMU motion tracking with use on, e.g., android-based smart glasses, phones and tablets. The UWB tracking provides a stable reference point in GPS denied environments, offering 3D tracking under the most challenging conditions. When walls or distance make UWB untenable, disclosed tags stream back IMU data processed by machine learning algorithms which remove, e.g., the effect of drift, noise, and error common to motion-based tracking. The system may process the UWB and IMU input data and produce a platform and language agnostic serialized message stream with position data. This published stream allows any visualization platform to subscribe and consume 3D position data, be it a local graph for engineering debug, cloud-based first responder software, or a third-party solution.
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公开(公告)号：US11686807B2
公开(公告)日：2023-06-27
申请号：US16845352
申请日：2020-04-10
发明人： Jac Romme , Pouria Zand
IPC分类号： G01S5/02
CPC分类号： G01S5/0246 , G01S5/0284 , G01S5/02216 , G01S5/02685
摘要： A method of wireless ranging between an initiator node and a responder node, involves performing a measurement procedure resulting in a two-way phase measurement between an initiator node and a responder node, the measurement procedure involving the initiator node transmitting an initiator carrier signal; the responder node performing a phase measurement of the initiator carrier signal relative to a responder node clock reference; the responder node transmitting a responder carrier signal; and the initiator node performing a phase measurement of the responder carrier signal relative to the initiator node clock reference, the method further involving calculating a distance between the initiator node and the responder node using as input the two-way phase measurements for the plurality of nominal frequencies; and a clock reference offset correction of the initiator node and of the responder node.
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公开(公告)号：US20240147378A1
公开(公告)日：2024-05-02
申请号：US18410700
申请日：2024-01-11
申请人： Snap Inc.
CPC分类号： H04W52/0261 , G01S5/0063 , G01S5/0252 , G01S5/02685 , G06T11/00 , G06T13/00 , H04W64/003 , G01S19/48
摘要： Systems, methods, and computer readable media that schedules requests for location data of a mobile device, where the methods include selecting a first positioning system based on a power requirement, a latency requirement, and an accuracy requirement, and determining whether a first condition is satisfied for querying the first positioning system. The method further comprises in response to a determination that the first condition is satisfied, querying the first positioning system for first position data. The method further comprises in response to a determination that the first condition is not satisfied, selecting a second positioning system based on the power requirement, the latency requirement, and the accuracy requirement, determining whether a second condition is satisfied for querying the second positioning system, and in response to a determination that the second condition is satisfied, querying the second positioning system for second position data.
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公开(公告)号：US20230199661A1
公开(公告)日：2023-06-22
申请号：US18167432
申请日：2023-02-10
申请人： Snap Inc.
CPC分类号： H04W52/0261 , G01S5/0063 , G01S5/0252 , G01S5/02685 , G06T11/00 , G06T13/00 , H04W64/003 , G01S19/48
摘要： Systems, methods, and computer readable media that schedules requests for location data of a mobile device, where the methods include selecting a first positioning system based on a power requirement, a latency requirement, and an accuracy requirement, and determining whether a first condition is satisfied for querying the first positioning system. The method further comprises in response to a determination that the first condition is satisfied, querying the first positioning system for first position data. The method further comprises in response to a determination that the first condition is not satisfied, selecting a second positioning system based on the power requirement, the latency requirement, and the accuracy requirement, determining whether a second condition is satisfied for querying the second positioning system, and in response to a determination that the second condition is satisfied, querying the second positioning system for second position data.
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公开(公告)号：US20230189154A1
公开(公告)日：2023-06-15
申请号：US18166279
申请日：2023-02-08
申请人： Snap Inc.
CPC分类号： H04W52/0261 , G06T13/00 , G06T11/00 , G01S5/02685 , G01S5/0063 , G01S5/0252 , H04W64/003 , G01S19/48
摘要： Systems, methods, and computer readable media that determine a location of a device using multi-source geolocation data, where the methods include accessing new location data from a location source of a plurality of location sources, where the new location data includes a new position and an accuracy of the new position, and determining a current position and an accuracy of the current position based on the new position, the accuracy of the new position, an previous current position, and an accuracy of the previous current position. The method further includes determining a change in location based on a difference between the current position and the previous current position. Some systems, methods, and computer readable media are directed to scheduling location requests to generate location data where the scheduling and the actual requests are made based on a number of conditions.
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