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    TWO-WAY COMMUNICATION SYSTEM FOR TRACKING LOCATIONS AND STATUSES OF WHEELED VEHICLES
    2.
    发明专利
    TWO-WAY COMMUNICATION SYSTEM FOR TRACKING LOCATIONS AND STATUSES OF WHEELED VEHICLES 未知

    公开(公告)号：CA2934724C

    公开(公告)日：2019-04-09

    申请号：CA2934724

    申请日：2006-03-20

    Applicant: GATEKEEPER SYSTEMS INC

    Inventor： HANNAH STEPHEN E ,  CARTER SCOTT J ,  JAMES JESSE M

    IPC: B62B5/04 ,  B62B3/00

    Abstract: A method of monitoring shopping cart usage. The method involves generating shopping cart event data via two-way radio frequency (RF) communications with each of a plurality of shopping carts associated with a store, the event data including information reflective of zone entry events detected by particular shopping carts, each zone entry event representing entry of a particular shopping cart into a particular zone of a plurality of zones associated with the store, the zone entry events detected by the corresponding shopping carts based on transmissions received by the shopping carts from corresponding antennas mounted in a monitoring area associated with the store, the shopping cart event data additionally including battery level data reported by the shopping carts, the battery level data reflective of battery levels of batteries included in wheel assemblies of the shopping carts. The method further involves aggregating the shopping cart event data associated with the plurality of shopping carts in a data repository, and programmatically analyzing the aggregated shopping cart event data to generate statistical information regarding the shopping carts. The method involves, via circuitry included in the wheel assemblies of the shopping carts, generating received signal strength measurements based on the transmissions, and using the received signal strength measurements to detect the zone entry events.

    Sistema de comunicación bidireccional para rastrear localizaciones y estados de vehículos con ruedas
    3.
    发明专利
    Sistema de comunicación bidireccional para rastrear localizaciones y estados de vehículos con ruedas 未知

    公开(公告)号：ES2605370T3

    公开(公告)日：2017-03-14

    申请号：ES06748454

    申请日：2006-03-20

    Applicant: GATEKEEPER SYSTEMS INC

    Inventor： HANNAH STEPHEN E ,  CARTER SCOTT J ,  JAMES JESSE M

    IPC: G08B1/08 ,  B60R25/09 ,  B62B5/04

    Abstract: Un método de monitorización y control de movimientos de un carrito de la compra (30), comprendiendo el método: monitorizar una localización de un carrito de la compra (30) mediante comunicaciones de frecuencia de radio (RF) bidireccionales con un transceptor de carrito del carrito de la compra (30), dicho transceptor de carrito acoplado eléctricamente a un mecanismo de freno del carrito de la compra (30); y determinar automáticamente si activar el mecanismo de freno para inhibir que el carrito de la compra (30) salga de una tienda basándose, al menos en parte, en: (i) una ruta tomada por el carrito de la compra (30) antes de dirigirse a una salida de la tienda, según se determina a partir de dicha monitorización; y (ii) una velocidad con la que el carrito de la compra (30) ha pasado por una línea de caja.

    NAVIGATION SYSTEMS AND METHODS FOR WHEELED OBJECTS
    6.
    发明专利
    NAVIGATION SYSTEMS AND METHODS FOR WHEELED OBJECTS 未知

    公开(公告)号：CA2601569A1

    公开(公告)日：2006-09-28

    申请号：CA2601569

    申请日：2006-03-20

    Applicant: GATEKEEPER SYSTEMS INC

    Inventor： HANNAH STEPHEN E ,  CARTER SCOTT J ,  JAMES JESSE M

    IPC: G01C21/00

    Abstract: A vehicle tracking system includes a wheel (32) containing sensor circuitry (88, 90, 92, 94, 96) capable of sensing various types of conditions, such as wheel rotation, wheel vibration caused by skidding, and specific electromagnetic and/or magnetic signals indicative of particular wheel locations. The sensor circuitry is coupled to an RF transceiver (82), which may but need not be included within the wheel. The wheel (32) may also include a brake mechanism (100). In one embodiment, the wheels (32) are placed on shopping carts (30) and are used to collect and monitor shopping cart status and location data via a wireless network. The collected data may be used for various purposes, such as locking the wheel of an exiting cart if the customer has not paid, estimating numbers of queued carts, stopping wheel skid events that occur during mechanized cart retrieval, store planning, and providing location-based messaging to customers.

    Shopping basket monitoring using computer vision and machine learning
    7.
    发明专利
    Shopping basket monitoring using computer vision and machine learning 未知

    公开(公告)号：AU2019335011B2

    公开(公告)日：2023-01-12

    申请号：AU2019335011

    申请日：2019-09-05

    Applicant: GATEKEEPER SYSTEMS INC

    Inventor： RAMANATHAN NARAYANAN V ,  CARTER SCOTT J ,  HANNAH STEPHEN E ,  JAMES JESSE M ,  JOHNSON JACK L ,  HARLING ROBERT M

    IPC: B62B5/04 ,  G06V10/147 ,  G08B13/00 ,  G08B13/196

    Abstract: A system for monitoring shopping baskets (e.g., baskets on human-propelled carts, motorized carts, or hand-carried baskets) can include a computer vision unit that can image a surveillance region (e.g., an exit to a store), determine whether a basket is empty or loaded with merchandise, and assess a potential for theft of the merchandise. The computer vision unit can include a camera and an image processor programmed to execute a computer vision algorithm to identify shopping baskets and determine a load status of the basket. The computer vision algorithm can comprise a neural network. The system can identify an at least partially loaded shopping basket that is exiting the store, without indicia of having paid for the merchandise, and execute an anti-theft action, e.g., actuating an alarm, notifying store personnel, activating a store surveillance system, activating an anti-theft device associated with the basket (e.g., a locking shopping cart wheel), etc.

    NAVIGATION SYSTEMS FOR WHEELED CARTS
    9.
    发明专利
    NAVIGATION SYSTEMS FOR WHEELED CARTS 未知

    公开(公告)号：CA3054417A1

    公开(公告)日：2018-09-13

    申请号：CA3054417

    申请日：2018-03-06

    Applicant: GATEKEEPER SYSTEMS INC

    Inventor： CARTER SCOTT J ,  HANNAH STEPHEN E ,  JAMES JESSE M ,  RAMANATHAN NARAYANAN V ,  HARLING ROBERT M ,  JOHNSON JACK

    IPC: G08B21/18 ,  B62K3/00 ,  G01H11/06 ,  G08B13/14

    Abstract: 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. Various techniques 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. Navigation techniques can include navigation history and backtracking, motion direction detection for dual swivel casters, use of gyroscopes, determining cart weight, multi-level navigation, multi-level magnetic measurements, use of lighting signatures, use of multiple navigation systems, or hard/soft iron compensation for different cart configurations.

    MONITORING USAGE OR STATUS OF CART RETRIEVERS
    10.
    发明专利
    MONITORING USAGE OR STATUS OF CART RETRIEVERS 未知

    公开(公告)号：CA2955623A1

    公开(公告)日：2016-01-28

    申请号：CA2955623

    申请日：2015-07-24

    Applicant: GATEKEEPER SYSTEMS INC

    Inventor： HANNAH STEPHEN E ,  JAMES JESSE M ,  EKBOTE CHANDRASHEKHAR

    IPC: B60L15/40 ,  G06F19/00

    Abstract: Examples of systems and methods for controlling or monitoring a fleet of human- propelled, wheeled carts and cart retrievers are described. The carts can be shopping carts at a retail facility, and the cart retrievers can be used to collect and return the shopping carts from a parking lot near the facility to a cart collection area. The carts or cart retrievers can monitor various status or usage parameters (such as retriever battery charge, cart collection trip speed, cart collection path or duration, etc.) and transmit the parameters to a central control unit. The central control unit can analyze and process the status or usage parameters. The system can provide a user interface for access to the status or usage parameters of the cart and cart retriever fleet.

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