Vision and radio fusion based precise indoor localization

    公开(公告)号:US11467247B2

    公开(公告)日:2022-10-11

    申请号:US17107372

    申请日:2020-11-30

    Abstract: An embodiment includes at least one computer readable storage medium comprising instructions that when executed enable a system to: receive (a)(i) first radio signal location data for a first object from a radio sensor; and (a)(ii) first visual signal location data for the first object from a camera sensor; perform feature extraction on (b)(i) the first radio signal location data to determine first extracted radio signal features; and (b)(ii) the first visual signal location data to determine first extracted visual signal features; solve a first association problem between the first extracted radio signal features and the first extracted visual signal features to determine first fused location data; and store the first fused location data in the at least one computer readable storage medium. Other embodiments are described herein.

    Autonomous semantic labeling of physical locations

    公开(公告)号:US10219129B2

    公开(公告)日:2019-02-26

    申请号:US15722872

    申请日:2017-10-02

    Abstract: A portable electronic device may generate a (RF) radio frequency fingerprint that includes information representative of at least a portion of RF signals received at a given physical location. The RF fingerprint may include, for example, a unique identifier and a signal strength that are both logically associated with at least a portion of the received RF signals. The portable electronic device may also receive data representative of a number of environmental parameters about the portable electronic device. These environmental parameters may be measured using sensors carried by the portable electronic device. Considered in combination, these environmental parameters provide an environmental signature for a given location. When combined into a data cluster, the RF fingerprint and the environmental signature may provide an indication of the physical subdivision where the portable electronic device is located. The portable electronic device may then generate a proposed semantic label for the physical subdivision.

    Autonomous semantic labeling of physical locations

    公开(公告)号:US09781575B1

    公开(公告)日:2017-10-03

    申请号:US15084799

    申请日:2016-03-30

    CPC classification number: H04W4/30 H04L67/303 H04W4/023 H04W4/04 H04W4/70 H04W4/80

    Abstract: A portable electronic device may generate a (RF) radio frequency fingerprint that includes information representative of at least a portion of RF signals received at a given physical location. The RF fingerprint may include, for example, a unique identifier and a signal strength that are both logically associated with at least a portion of the received RF signals. The portable electronic device may also receive data representative of a number of environmental parameters about the portable electronic device. These environmental parameters may be measured using sensors carried by the portable electronic device. Considered in combination, these environmental parameters provide an environmental signature for a given location. When combined into a data cluster, the RF fingerprint and the environmental signature may provide an indication of the physical subdivision where the portable electronic device is located. The portable electronic device may then generate a proposed semantic label for the physical subdivision.

    VISION AND RADIO FUSION BASED PRECISE INDOOR LOCALIZATION

    公开(公告)号:US20210149012A1

    公开(公告)日:2021-05-20

    申请号:US17107372

    申请日:2020-11-30

    Abstract: An embodiment includes at least one computer readable storage medium comprising instructions that when executed enable a system to: receive (a)(i) first radio signal location data for a first object from a radio sensor; and (a)(ii) first visual signal location data for the first object from a camera sensor; perform feature extraction on (b)(i) the first radio signal location data to determine first extracted radio signal features; and (b)(ii) the first visual signal location data to determine first extracted visual signal features; solve a first association problem between the first extracted radio signal features and the first extracted visual signal features to determine first fused location data; and store the first fused location data in the at least one computer readable storage medium. Other embodiments are described herein.

    Techniques for merging virtual and physical floor maps

    公开(公告)号:US10417800B2

    公开(公告)日:2019-09-17

    申请号:US15089488

    申请日:2016-04-02

    Inventor: Lei Yang Xue Yang

    Abstract: Various embodiments are generally directed to techniques to merge a virtual map derived from sensors of computing devices moved about an interior of a structure with a corresponding physical map. An apparatus to merge maps includes a processor component; and a merged map generator for execution by the processor component to merge a virtual map and a physical map to generate a merged map, the virtual map comprising indications of virtual pathways through an interior of a structure based on sensors, and the physical map comprising indications of physical pathways of the interior. Other embodiments are described and claimed.

    Apparatus, system and method of estimating an orientation of a mobile device

    公开(公告)号:US10222208B2

    公开(公告)日:2019-03-05

    申请号:US14141456

    申请日:2013-12-27

    Inventor: Xue Yang Lei Yang

    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of estimating an orientation of a mobile device. For example, an apparatus may include an orientation estimator to receive an indication of first and second consecutive steps of a user carrying a mobile device, to determine an angular rotation of an orientation parameter between the first and second steps, and to determine a value of the orientation parameter based on a comparison between the angular rotation and at least one predefined angular rotation threshold.

    TWO-DIMENSIONAL ENCOUNTER LOCATION DETECTION

    公开(公告)号:US20190007924A1

    公开(公告)日:2019-01-03

    申请号:US16062103

    申请日:2015-12-26

    Abstract: Sensors provisioned on a first device detect a movement of the first device corresponding to the first device changing position within an environment. Location information for the first device is updated based on the position change. A plurality of signals are detected, at the first device, from a second device in the environment, determine, and a distance between the first and second devices is determined based on each of the signals. From the signals, another change in position of the first device within the environment is determined and the location information updated for the first device. The movement is detected at the first device at an instance between two of the plurality of signals, and location information for the first device based on the first position change is updated prior to detection of the later of the two signals in the plurality of signals.

    EARLY WARNING OF NON-COMPLIANCE WITH AN ESTABLISHED WORKFLOW IN A WORK AREA

    公开(公告)号:US20170287313A1

    公开(公告)日:2017-10-05

    申请号:US15087098

    申请日:2016-03-31

    CPC classification number: G08B21/245 A61B5/00 G06Q10/103

    Abstract: A system for early warning of non-compliance with an established workflow in a work area includes a radio frequency (RF) sensor configured to detect each of a plurality of RF signals located within the work area, and a monitoring system operably connected to the RF sensor. The monitoring system is configured to compare a temporal sequence of detected RF signals to a predetermined temporal sequence of the RF signals associated with the established workflow, and to determine whether a warning condition exists based on the comparison. The RF signals can be emitted by RFID tags within the work area, such as a patient room of a healthcare provider, and the RFID tags may be associated with a hand sanitizing station, an intravenous solution dispenser, and a healthcare provider staff member, each of which play a role in reducing the incidence of hospital-acquired infections through compliance with corresponding patient safety protocols.

    Systems and methods for reducing variations in received signal strength indicator (RSSI) measurements for location sensing
    9.
    发明授权
    Systems and methods for reducing variations in received signal strength indicator (RSSI) measurements for location sensing 有权
    用于减少用于位置感测的接收信号强度指示(RSSI)测量的变化的系统和方法

    公开(公告)号:US09310465B2

    公开(公告)日:2016-04-12

    申请号:US13727771

    申请日:2012-12-27

    Inventor: Lei Yang Xue Yang

    CPC classification number: G01S5/14 G01S5/0215 G01S5/0252 G01S5/0273 G01S11/06

    Abstract: Certain embodiments herein are directed to reducing variations in received signal strength indicator (RSSI) measurements that may be received by a wireless device over a network, such as a WiFi network including one or more access points. A signal sent from an access point may be received by a user device, where channel estimation results associated with the received signal may be analyzed to determine a more accurate location of the user device. The received signal may be converted to at least one of the time domain and the frequency domain, in which signal components associated with the received signal may be identified based on a determination that the signal components may be associated with multipath fading or other types of interference. Such identified signal components, whether in the frequency domain or the time domain) may be excluded from a determination of a signal strength measurement that may in turn be used to identify the location of the user device.

    Abstract translation: 这里的某些实施例旨在减少可由无线设备通过网络(诸如包括一个或多个接入点的WiFi网络)接收的接收信号强度指示符(RSSI)测量的变化。 从接入点发送的信号可以由用户设备接收,其中可以分析与接收信号相关联的信道估计结果,以确定用户设备的更准确的位置。 所接收的信号可以被转换为时域和频域中的至少一个,其中可以基于确定信号分量可能与多径衰落或其他类型的干扰相关联的信号来识别与接收信号相关联的信号分量 。 这样的识别的信号分量,无论是在频域还是时域中)可以被排除在信号强度测量的确定之外,信号强度测量可以用于识别用户设备的位置。

    Group-based data transfer in machine-to-machine systems

    公开(公告)号:US10609146B2

    公开(公告)日:2020-03-31

    申请号:US14975019

    申请日:2015-12-18

    Abstract: A particular device is provided with a communications module to receive signals of a plurality of devices within range of the particular device and further provisioned with grouping logic. The grouping logic is executable by one or more processors to determine from each of the signals a respective identifier for each of the plurality of devices, determine, based at least in part on the identifiers, that a particular subset of the plurality of devices are also included with the particular device in a particular one of a plurality of defined groups, and converge data received from the particular subset of devices based on the particular group.

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