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    Collaborative creation of indoor maps
    11.
    发明授权
    Collaborative creation of indoor maps 有权

    公开(公告)号：US11199412B2

    公开(公告)日：2021-12-14

    申请号：US16022526

    申请日：2018-06-28

    Applicant: TRX SYSTEMS, INC.

    Inventor： Kamiar Kordari ,  Benjamin Funk ,  Carole Teolis ,  Jared Napora ,  John Karvounis ,  Dan Hakim ,  Christopher Giles ,  Carol Politi

    IPC: G01C21/20

    Abstract: This disclosure provides techniques for the creation of maps of indoor spaces. In these techniques, an individual or a team with no mapping or cartography expertise can contribute to the creation of maps of buildings, campuses or cities. An indoor location system can track the location of contributors in the building. As they walk through indoor spaces, an application may automatically create a map based on data from motion sensors by both tracking the location of the contributors and also inferring building features such as hallways, stairways, and elevators based on the tracked contributors' motions as they move through a structure. With these techniques, the process of mapping buildings can be crowd sourced to a large number of contributors, making the indoor mapping process efficient and easy to scale up.

    Reducing elevation error with environmental pressure anomaly compensation
    14.
    发明授权
    Reducing elevation error with environmental pressure anomaly compensation 有权

    公开(公告)号：US09823068B2

    公开(公告)日：2017-11-21

    申请号：US15040996

    申请日：2016-02-10

    Applicant: TRX Systems, Inc.

    Inventor： John Karvounis ,  Jared Napora ,  Dan Hakim ,  Carole Teolis ,  John Riley Miller ,  Benjamin E. Funk

    IPC: G01C5/06

    CPC classification number: G01C5/06

    Abstract: A method for determining an environmental pressure change affecting a pressure sensor within a portable device to determine an elevation of the portable device is disclosed. The method involves estimating a location of the mobile device, estimating an atmospheric pressure associated with the mobile device at a server based on data indicative of atmospheric pressure received from the mobile device, and generating the elevation of the mobile device based on the atmospheric pressure associated with the mobile device and reference data indicative of an absolute elevation reference. The absolute elevation determined may be based on the estimated location of the mobile device and elevation data obtained from a reference map.

    Method for step detection and gait direction estimation
    15.
    发明授权
    Method for step detection and gait direction estimation 有权
    步进检测和步态方向估计方法

    公开(公告)号：US08930163B2

    公开(公告)日：2015-01-06

    申请号：US13827506

    申请日：2013-03-14

    Applicant: TRX Systems, Inc.

    Inventor： Kamiar Kordari ,  Benjamin Funk ,  Jared Napora ,  Ruchika Verma ,  Carole Teolis ,  Travis Young

    IPC: G01C22/00 ,  G01P15/00 ,  G01C21/00 ,  G06F17/10

    CPC classification number: G01C22/006 ,  G06F17/10

    Abstract: A method for detecting a human's steps and estimating the horizontal translation direction and scaling of the resulting motion relative to an inertial sensor is described. When a pedestrian takes a sequence of steps the displacement can be decomposed into a sequence of rotations and translations over each step. A translation is the change in the location of pedestrian's center of mass and a rotation is the change along z-axis of the pedestrian's orientation. A translation can be described by a vector and a rotation by an angle.

    Abstract translation: 描述了一种用于检测人的步骤并估计相对于惯性传感器的所得运动的水平平移方向和缩放的方法。 当步行者采取一系列步骤时，可以通过每个步骤将位移分解成一系列旋转和翻译。 翻译是行人中心位置的变化，旋转是沿着行人方向的z轴的变化。 翻译可以通过向量和旋转来描述一个角度。

    METHODS FOR GENERATING AND UPDATING BUILDING MODELS
    16.
    发明申请
    METHODS FOR GENERATING AND UPDATING BUILDING MODELS 有权

    公开(公告)号：US20220139031A1

    公开(公告)日：2022-05-05

    申请号：US17475935

    申请日：2021-09-15

    Applicant: TRX Systems, Inc.

    Inventor： Travis Young ,  Daniel Hakim ,  Daniel Franchy ,  Jared Napora ,  John Karvounis ,  Jonathan Fetter Degges ,  Tim Wang ,  Benjamin Funk ,  Carole Teolis ,  Carol Politi ,  Stuart Woodbury

    IPC: G06T17/05 ,  G06F30/13

    Abstract: Systems, methods and instructions for creating building models of physical structures is disclosed. The building model may be a collection of floors defined by outlines containing regions that may be offset relative to a main region, and a collection of connectors. Connectors may have connection points for tracking, routing and sizing. Connectors may indicate elevation changes through georeferenced structural features. Signal elements may also be features that provide corrections when tracking. Feature descriptors are data that describes the structural configuration and signal elements enabling them to be matched to previously collected data in a database. User interface elements assist a user of a tracking device in collecting floor information, structural features and signal features and validating certain collected information based on previously known information. The height of floors may also be inferred based on sensor data from the tracking device.

    Crowd sourced mapping with robust structural features
    17.
    发明授权
    Crowd sourced mapping with robust structural features 有权

    公开(公告)号：US11268818B2

    公开(公告)日：2022-03-08

    申请号：US16387483

    申请日：2019-04-17

    Applicant: TRX SYSTEMS, INC.

    Inventor： Travis Young ,  Kamiar Kordari ,  Benjamin Funk ,  Carole Teolis

    IPC: G01C21/20 ,  G01S5/02 ,  G01C21/32 ,  G01S19/13 ,  G01C21/16

    Abstract: A location and mapping service is described that creates a global database of indoor navigation maps through crowd-sourcing and data fusion technologies. The navigation maps consist of a database of geo-referenced, uniquely described features in the multi-dimensional sensor space (e.g., including structural, RF, magnetic, image, acoustic, or other data) that are collected automatically as a tracked mobile device is moved through a building (e.g. a person with a mobile phone or a robot). The feature information can be used to create building models as one or more tracked devices traverse a building.

    Mapping complex building models
    18.
    发明授权
    Mapping complex building models 有权

    公开(公告)号：US10740965B2

    公开(公告)日：2020-08-11

    申请号：US16428519

    申请日：2019-05-31

    Applicant: TRX Systems, Inc.

    Inventor： Travis Young ,  Daniel Hakim ,  Daniel Franchy ,  Jared Napora ,  John Karvounis ,  Jonathan Fetter Degges ,  Tim Wang ,  Benjamin Funk ,  Carole Teolis ,  Carol Politi ,  Stuart Woodbury

    IPC: G06T17/05 ,  G06F30/13

    Abstract: Systems, methods and instructions for creating building models of physical structures is disclosed. The building model may be a collection of floors defined by outlines containing regions that may be offset relative to a main region, and a collection of connectors. Connectors may have connection points for tracking, routing and sizing. Connectors may indicate elevation changes through georeferenced structural features. Signal elements may also be features that provide corrections when tracking. Feature descriptors are data that describes the structural configuration and signal elements enabling them to be matched to previously collected data in a database. User interface elements assist a user of a tracking device in collecting floor information, structural features and signal features and validating certain collected information based on previously known information. The height of floors may also be inferred based on sensor data from the tracking device.

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