-
公开(公告)号：US20250022356A1
公开(公告)日：2025-01-16
申请号：US18899574
申请日：2024-09-27
Applicant: Gatekeeper Systems, Inc.
Inventor： Narayanan V. Ramanathan , Scott J. Carter , Stephen E. Hannah , Jesse M. James , Jack L. Johnson , Robert M. Harling
IPC: G08B13/196 , B62B3/14 , B62B5/00 , B62B5/04 , G06F18/214 , G06N20/00 , G06Q20/20 , G06V10/147 , G06V20/52 , G06V20/64 , G08B13/194 , H04N23/51
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.
-
公开(公告)号：US12099107B2
公开(公告)日：2024-09-24
申请号：US18333439
申请日：2023-06-12
Applicant: Gatekeeper Systems, Inc.
Inventor： Scott J. Carter , Ho Man M. Fong , Ryan M. Morrison , Narayanan V. Ramanathan
CPC classification number: G01R35/005 , G01R33/0206 , G01R33/063
Abstract: Examples of systems and methods for calibrating or operating a magnetic sensor for sensor temperature or operating conditions are provided. The magnetic sensor can comprise a dual magnetometer sensor that comprises a first, low-power-consumption magnetometer (e.g., a magneto-inductive magnetometer) and a second higher-power-consumption magnetometer (e.g., a magneto-resistive magnetometer). The second magnetometer can have a lower unit-to-unit variation in temperature calibration parameters and can be used to temperature-correct readings from the first magnetometer. The magnetic sensor can dynamically switch between usage of the first magnetometer and the second magnetometer in order to provide a dynamic sample rate that can depend on conditions within the sensor or external to the sensor.
-
公开(公告)号：US20240159852A1
公开(公告)日：2024-05-16
申请号：US18333439
申请日：2023-06-12
Applicant: Gatekeeper Systems, Inc.
Inventor： Scott J. Carter , Ho Man M. Fong , Ryan M. Morrison , Narayanan V. Ramanathan
CPC classification number: G01R35/005 , G01R33/0206 , G01R33/063
Abstract: Examples of systems and methods for calibrating or operating a magnetic sensor for sensor temperature or operating conditions are provided. The magnetic sensor can comprise a dual magnetometer sensor that comprises a first, low-power-consumption magnetometer (e.g., a magneto-inductive magnetometer) and a second higher-power-consumption magnetometer (e.g., a magneto-resistive magnetometer). The second magnetometer can have a lower unit-to-unit variation in temperature calibration parameters and can be used to temperature-correct readings from the first magnetometer. The magnetic sensor can dynamically switch between usage of the first magnetometer and the second magnetometer in order to provide a dynamic sample rate that can depend on conditions within the sensor or external to the sensor.
-
公开(公告)号：US11981365B2
公开(公告)日：2024-05-14
申请号：US17804440
申请日：2022-05-27
Applicant: Gatekeeper Systems, Inc.
Inventor： Stephen E. Hannah , Scott J. Carter , Jesse M. James
IPC: B62B5/04 , A47F10/04 , B60K25/08 , B60T7/16 , B60T7/18 , B62B3/14 , B62B5/00 , G01C21/12 , G01C21/20 , G06K7/10 , G06Q10/08 , G08B13/24 , G08G1/00 , H02K7/18 , H04W4/024 , H04W4/029
CPC classification number: B62B5/0438 , A47F10/04 , B60K25/08 , B60T7/16 , B60T7/18 , B62B3/14 , B62B3/1404 , B62B3/1412 , B62B3/1424 , B62B3/1492 , B62B5/0003 , B62B5/0423 , B62B5/048 , G01C21/12 , G01C21/206 , G06K7/10366 , G06Q10/08 , G08B13/2434 , G08B13/2448 , G08B13/2462 , G08B13/2482 , G08G1/20 , H02K7/1846 , H04W4/024 , H04W4/029 , G08B13/246 , G08B13/2474 , G08B13/2477 , Y10T29/49826
Abstract: A system for monitoring and controlling shopping cart usage comprises a wheel assembly that attaches to a shopping cart. In some embodiments the wheel assembly includes a wheel, a brake that can be activated to inhibit rotation of the wheel, a controller that controls the brake, a VLF receiver, and an RF transceiver. The RF transceiver may, for example, operate in a 2.4 GHz frequency band. In some implementations, the RF transceiver may be used to detect entry of the shopping cart into a checkout area of the store, and the VLF receiver may be used to detect that the shopping cart is exiting the store. The controller may activate the brake if the shopping cart attempts to exit the store without first passing through a checkout area.
-
公开(公告)号：US11975568B2
公开(公告)日：2024-05-07
申请号：US17156328
申请日：2021-01-22
Applicant: Gatekeeper Systems, Inc.
Inventor： John C. McKay
CPC classification number: B60B33/045 , B60B33/0076
Abstract: A self-leveling caster assembly includes a caster frame and a castor fork which is configured to pivot relative to the caster frame. A spring or other biasing mechanism biases the caster fork away from the caster frame, to maintain contact between the ground and a wheel supported by the caster fork along a travel range of the wheel. Even if a frame supporting the self-leveling caster assembly is bent, pulling the wheel away from the ground, the biased caster fork will maintain contact between the ground and the wheel, allowing continued use of a shopping cart or other wheeled apparatus including the self-leveling caster assembly.
-
Patent Agency Ranking
公开(公告)号：US11358621B2
公开(公告)日：2022-06-14
申请号：US17564648
申请日：2021-12-29
Applicant: Gatekeeper Systems, Inc.
Inventor： Stephen E. Hannah , Scott J. Carter , Jesse M. James
IPC: B62B5/04 , B62B3/14 , H04W4/024 , G08B13/24 , B60K25/08 , B60T7/18 , G01C21/00 , G01C21/12 , G06Q10/08 , G08G1/00 , H02K7/18 , H04W4/029 , A47F10/04 , B60T7/16 , G01C21/20 , B62B5/00 , G06K7/10
Abstract: A system for monitoring and controlling shopping cart usage comprises a wheel assembly that attaches to a shopping cart. In some embodiments the wheel assembly includes a wheel, a brake that can be activated to inhibit rotation of the wheel, a controller that controls the brake, a VLF receiver, and an RF transceiver. The RF transceiver may, for example, operate in a 2.4 GHz frequency band. In some implementations, the RF transceiver may be used to detect entry of the shopping cart into a checkout area of the store, and the VLF receiver may be used to detect that the shopping cart is exiting the store. The controller may activate the brake if the shopping cart attempts to exit the store without first passing through a checkout area.
-
7.发明申请公开(公告)号：US20220124460A1
公开(公告)日：2022-04-21
申请号：US17507197
申请日：2021-10-21
Applicant: GateKeeper Systems, Inc.
Inventor： Jonathan D. Finley
IPC: H04W4/029 , G06F16/2455 , H04W4/42 , G06F3/14
Abstract: A method of monitoring of transportation network company vehicles within a geofence associated with an airport according to one embodiment includes receiving a user selection of a past time interval and an event type within the geofence to be monitored, querying a database for event data that matches the user selection of the past time interval and the event type, generating a JSON object that includes spatial data for each event identified as a result of querying the database, and animating a visual representation of the spatial data for each event in a map view over a timeline associated with the past time interval (e.g., as a video replay).
-
公开(公告)号：US20210284217A1
公开(公告)日：2021-09-16
申请号：US17111221
申请日：2020-12-03
Applicant: Gatekeeper Systems, Inc.
Inventor： Scott J. Carter , Stephen E. Hannah , Jesse M. James , Narayanan V. Ramanathan , Robert M. Harling , Jack Johnson
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.
-
公开(公告)号：US20210141044A1
公开(公告)日：2021-05-13
申请号：US17126595
申请日：2020-12-18
Applicant: Gatekeeper Systems, Inc.
Inventor： Scott J. Carter , Ho Man M. Fong , Ryan M. Morrison , Narayanan V. Ramanathan
Abstract: Examples of systems and methods for calibrating or operating a magnetic sensor for sensor temperature or operating conditions are provided. The magnetic sensor can comprise a dual magnetometer sensor that comprises a first, low-power-consumption magnetometer (e.g., a magneto-inductive magnetometer) and a second higher-power-consumption magnetometer (e.g., a magneto-resistive magnetometer). The second magnetometer can have a lower unit-to-unit variation in temperature calibration parameters and can be used to temperature-correct readings from the first magnetometer. The magnetic sensor can dynamically switch between usage of the first magnetometer and the second magnetometer in order to provide a dynamic sample rate that can depend on conditions within the sensor or external to the sensor.
-
公开(公告)号：US10219136B2
公开(公告)日：2019-02-26
申请号：US15645822
申请日：2017-07-10
Applicant: Gatekeeper Systems, Inc.
Inventor： Stephen E Hannah , Jesse M James
Abstract: Various systems for monitoring wheeled vehicles (such as shopping carts) are disclosed. The system can include an RF antenna unit that is buried and is configured for bi-directional communication with the electronics on the cart. In some embodiments, the antenna comprises a plurality of transmitters, which can emit synchronized signals. In some embodiments, the antenna comprises a radiating cable, which can emit a signal along some, substantially all, or all of its length.
-
-
-
-
-
-
-
-
-
Search Results
113
records
(took 0.026 seconds)
