公开(公告)号：US20210146978A1

公开(公告)日：2021-05-20

申请号：US17100380

申请日：2020-11-20

Applicant: THALES CANADA INC.

Inventor： David BEACH ,  Alon GREEN ,  Walter KINIO

IPC: B61L23/04 ,  B61L25/02 ,  G01S13/88

Abstract: A method and system include receiving positioning and motion information from one or more positioning and motion devices on a vehicle on a guideway, based on the positioning and motion information, receiving information from a database on the vehicle, the information comprising track geometry information and infrastructure information corresponding to the guideway, using the track geometry information and positioning and motion information to determine a path of the guideway and a trajectory of the vehicle along the path, receiving data from one or more electromagnetic sensors on the vehicle, and detecting an object by using the trajectory, the infrastructure information, and the information from the one or more electromagnetic sensors.

公开(公告)号：US20220206136A1

公开(公告)日：2022-06-30

申请号：US17564964

申请日：2021-12-29

Applicant: THALES CANADA INC.

Inventor： Bojan SUBASIC ,  Alon GREEN ,  Walter KINIO ,  Marco DE THOMASIS ,  David BEACH

IPC: G01S13/86 ,  G01S7/41 ,  G01S13/74

Abstract: Embodiments of a method of locating a guideway mounted vehicle are disclosed. In one embodiment, a communication signal is transmitted to a wayside communication device. A range estimation is obtained based on the communication signal. A radar signal is transmitted to at least one reflector. An accuracy of the range estimation is increased based on the radar signal.

公开(公告)号：US20210109207A1

公开(公告)日：2021-04-15

申请号：US17066946

申请日：2020-10-09

Applicant: THALES CANADA INC.

Inventor： Adam LE ,  Tyler DAOUST ,  David BEACH ,  Alon GREEN

IPC: G01S13/60 ,  B61L25/02 ,  G01S13/86

Abstract: A system for determining a stationary state of a rail vehicle on a track includes a first radar mounted at an end of the rail vehicle and a second radar mounted at another end of the rail vehicle. A speed sensor is mounted on the rail vehicle. A series of fixed reflective track features are found along the track. A processing unit, communicably connected with the speed sensor, the first radar and the second radar receives data from the first radar and the second radar corresponding to the distance to the fixed reflective track features and determines the stationary state or low-speed condition of the rail vehicle and checks the state or condition by comparing it with an output of the speed sensor.

公开(公告)号：US20210264226A1

公开(公告)日：2021-08-26

申请号：US17184159

申请日：2021-02-24

Applicant: THALES CANADA INC.

Inventor： Freddy LECUE ,  David BEACH ,  Tanguy POMMELLET

IPC: G06K9/72 ,  G06N3/08 ,  G06N3/04 ,  G06F16/901

Abstract: A method of semantic object detection in an image dataset includes extracting semantic links relevant to the image dataset. Objects are detected in the image dataset and confidence scores are assigned to the detected objects. The semantic object detection compares the detected objects with the semantic links and augments the confidence scores based on the semantic links between the detected objects.

公开(公告)号：US20210080566A1

公开(公告)日：2021-03-18

申请号：US17025467

申请日：2020-09-18

Applicant: THALES CANADA INC

Inventor： David BEACH ,  Philip CHRISTIAN ,  Alon GREEN

IPC: G01S13/88 ,  G01S13/58 ,  B61L25/02

Abstract: A system is described for determining the location of a vehicle including an on-board computer and a ground penetrating radar mounted on the vehicle that is communicably connected to the on-board computer. A reflective landmark is located at a known location along the path of the vehicle. The reflective landmark includes reflective elements arranged to encode data. The ground penetrating radar transmits signal energy and detects reflected signal energy reflected by the reflective landmark and communicates encoded data representative of the reflected signal energy to the on-board computer. The on-board computer decodes the encoded data and thereby determines the location of the 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：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.