公开(公告)号：US11866080B2

公开(公告)日：2024-01-09

申请号：US17073145

申请日：2020-10-16

Applicant: THALES CANADA INC.

Inventor： Alon Green ,  Walter Kinio

IPC: B61L3/02 ,  B61L3/00 ,  B61L9/00 ,  B61L15/00 ,  B61L25/02 ,  B61L3/12 ,  B61L23/04

CPC classification number: B61L3/02 ,  B61L3/008 ,  B61L3/125 ,  B61L9/00 ,  B61L15/0027 ,  B61L25/021 ,  B61L25/025 ,  B61L23/041 ,  B61L2201/00 ,  B61L2205/00 ,  B61L2207/00

Abstract: A signal aspect enforcement method for a rail vehicle includes determining if vehicle position is unknown. The system determines if rail vehicle speed is less than a line-of-sight threshold speed. The system determines the grade of the rail. A worst-case braking distance of rail vehicle is calculated. The signal aspect is determined using a camera system and a beacon system. The system determines if the signal aspect determined by camera system is same as signal aspect determined by beacon system and, if so, determines the route of rail vehicle and speed limit of rail vehicle.

公开(公告)号：US11828307B2

公开(公告)日：2023-11-28

申请号：US17312142

申请日：2020-01-07

Applicant: THALES CANADA INC.

Inventor： Fabien Castang

IPC: F15B19/00 ,  G05B19/042 ,  G05B23/02

CPC classification number: F15B19/005 ,  G05B19/0425 ,  G05B23/0235 ,  G05B23/0254 ,  G05B2219/24015

Abstract: A method and a system are disclosed for detecting, isolating and estimating a degradation of a corresponding component of an actuator controlled by an actuator command signal, the method comprising obtaining a control signal of the actuator; obtaining a signal indicative of a displacement of the actuator; computing an envelope of admissible values for the displacement of the actuator; determining if the displacement of the actuator is outside the computed envelope and in the case where the displacement of the actuator is outside the computed enveloped computing an estimation of each parameter and state of the actuator; identifying at least one corresponding parameter responsible for causing the actuator displacement to be outside the computer envelope and providing an indication of the at least one corresponding parameter.

公开(公告)号：US11753054B2

公开(公告)日：2023-09-12

申请号：US16714175

申请日：2019-12-13

Applicant: THALES CANADA INC

Inventor： Alon Green ,  Kevin Tobin ,  Marco De Thomasis

IPC: B61L25/02

CPC classification number: B61L25/025

Abstract: A method for determining rail vehicle location and identifying obstacles, which includes operations of transmitting, from at least two vehicle beacons on a first vehicle, a ranging signal to at least two external beacons; receiving, at the at least two vehicle beacons, a return signal from the at least two external beacons; and determining, based on the return signal from the at least two external beacons, a position of each of the external beacons with respect to the at least two vehicle beacons of the first vehicle.

公开(公告)号：US20230196118A1

公开(公告)日：2023-06-22

申请号：US18066624

申请日：2022-12-15

Applicant: THALES CANADA INC.

Inventor： Simon CORBEIL-LETOURNEAU ,  Freddy LECUE ,  David BEACH

IPC: G06N3/091

CPC classification number: G06N3/091

Abstract: A method of improving robustness of a deep neural network (DNN), the method including: applying a coverage metric to a trained DNN based on a test set to determine test set adequacy; monitoring a performance of the trained DNN; based on the performance, applying new data to the trained DNN; applying a novelty metric to an output of the trained DNN based on the applied new data to identify a subset of the applied new data in response to determining whether new features are generated; and identifying the subset of the applied new data.

公开(公告)号：US11560163B2

公开(公告)日：2023-01-24

申请号：US16721019

申请日：2019-12-19

Applicant: Thales Canada Inc

Inventor： Alon Green ,  Marco De-Thomasis

IPC: B61L3/00 ,  B61L25/02 ,  G01C9/18 ,  G01P15/08

Abstract: A vehicle-position monitoring system includes liquid-capacitive inclinometer sensor, configured to provide a measurement of grade (θgrade) of a surface over which a vehicle travels, and an accelerometer to measure acceleration of the vehicle along a principal axis (ax) of the vehicle along the surface. Direct measurement of the grade (θgrade) provides a position-tracking system with accurate information to extract acceleration due to motoring and braking (aMB) from acceleration experienced along the principal axis and track vehicle position without regard to wheel diameter calibration.

公开(公告)号：US11536825B2

公开(公告)日：2022-12-27

申请号：US16715719

申请日：2019-12-16

Applicant: THALES CANADA INC

Inventor： Alon Green ,  Marco De Thomasis

IPC: G01S13/58 ,  G01S13/60 ,  G01S13/62 ,  G01S7/40 ,  B61L25/02

Abstract: The vehicle odometry and motion direction system and method is described. The vehicle odometry and motion direction system and method determines if the first ground speed data is acceptable. Ground speed data is calculated for all targets within a radar's field of view and targets ground speed data is processed to determine second ground speed data. The vehicle odometry and motion direction system and method determines trusted ground speed data using first ground speed data and second ground speed data and adjusts the trusted ground speed data due to errors in radar Doppler speed data.

公开(公告)号：US20220348188A1

公开(公告)日：2022-11-03

申请号：US17735817

申请日：2022-05-03

Applicant: THALES CANADA INC.

Inventor： Alon GREEN ,  Kevin TOBIN ,  Marco DE THOMASIS ,  Andrei Bucsa

IPC: B60W30/02 ,  B60W40/12

Abstract: Systems and methods of calibrating an Inertial Measurement Unit (IMU) on a vehicle are disclosed. In some embodiments, a first tilt angle of the IMU is measured with the IMU while the vehicle is stationary. A second tilt angle of the IMU is measured with an inclinometer or tilt sensor while the vehicle is stationary. The orientation of the IMU is corrected based on the first tilt angle and the second tilt angle.

公开(公告)号：US20220245949A1

公开(公告)日：2022-08-04

申请号：US17590264

申请日：2022-02-01

Applicant: Thales Canada Inc

Inventor： Veronica MARIN ,  Evgeny NUGER ,  Jaewook JUNG ,  William WANG ,  David BEACH

IPC: G06V20/58 ,  G06V10/25 ,  G06V10/82

Abstract: A method of detecting a way-side object includes receiving data frames from sensors mounted on a vehicle. Position data corresponding to the position of the vehicle is received. Object-of-interest data is retrieved from a database. The sensor data frames and the object-of-interest data are processed to determine a region-of-interest in the sensor data frame. A portion of the sensor data frames corresponding to the region of interest is processed using machine-learned object detection to identify a first object-of-interest. The portion of the sensor data frames corresponding to the region of interest is processed using computer vision methods to detect features of the expected object-of-interest and identifying the detected object-of-interest as explained when the features of the expected object-of-interest are detected. Explained object-of-interest data corresponding to the explained detected object-of-interest is output to a navigation system of the vehicle.

公开(公告)号：US20220234634A1

公开(公告)日：2022-07-28

申请号：US17649014

申请日：2022-01-26

Applicant: THALES CANADA INC.

Inventor： David BEACH ,  Alon GREEN

IPC: B61L25/02 ,  B61L27/20 ,  B61L27/57

Abstract: A vehicle positioning system includes processing circuitry in communication with the vehicle. The system further includes a memory connected to the processing circuitry, where the memory is configured to store executable instructions that, when executed by the processing circuitry, facilitate performance of operations. The operations include to receive vehicle-speed data from a first set of sensors operably coupled to the vehicle. The operations further include to predict a vehicle location based on the vehicle-speed data. The operations further include to receive inertial data from a second set of sensors operably coupled to the vehicle, and update the predicted vehicle location based upon the inertial data.

公开(公告)号：US20220037796A1

公开(公告)日：2022-02-03

申请号：US17505378

申请日：2021-10-19

Applicant: THALES CANADA INC.

Inventor： Alon Ion GREEN ,  Peter TIMMERMANS ,  Walter KINIO ,  Alex M. H. WONG ,  Philip CHRISTIAN ,  George V. ELEFTHERIADES

IPC: H01Q15/18 ,  H01Q3/46 ,  H01Q15/14 ,  H01Q15/24 ,  H01Q19/10 ,  H01Q21/06

Abstract: A metasurface includes a dielectric material, a ground plane on a back side of the dielectric material; and at least one conductive element on a top surface of the dielectric material, wherein the at least one conductive element includes at least one of a ground-backed dipole or a slot array.