公开(公告)号：US11945480B2

公开(公告)日：2024-04-02

申请号：US17115348

申请日：2020-12-08

Applicant: Ground Transportation Systems Canada Inc.

Inventor： Alon Green ,  James Kevin Tobin ,  Marco De Thomasis

IPC: B61L25/02 ,  B61L5/12 ,  B61L15/00 ,  B61L15/02

CPC classification number: B61L25/021 ,  B61L5/125 ,  B61L15/0027 ,  B61L15/02 ,  B61L25/023 ,  B61L25/025 ,  B61L25/026 ,  B61L2207/00

Abstract: A positioning and odometry system includes two or more vehicle beacons installed on an end of a vehicle and configured to communicate with one or more guideway beacons installed along a guideway. Processing circuitry is configured to communicate with the one or more vehicle beacons and perform at least one of: determine, before the processing circuitry enters a sleep state, a first vehicle position on the guideway; determine, after the processing circuitry wakes from the sleep state, a second vehicle position on the guideway; determine, after the processing circuitry wakes from the sleep state, any difference between the first vehicle position on the guideway and the second vehicle position on the guideway; determine a third vehicle position on the guideway using range measurements taken at configurable time intervals; and determine a vehicle speed where speed is measured as a change in the third vehicle position over time.