TRAIN POSITIONING METHOD AND POSITIONING SYSTEM

    公开(公告)号:US20240239387A1

    公开(公告)日:2024-07-18

    申请号:US18622288

    申请日:2024-03-29

    IPC分类号: B61L25/02 H04B17/318

    摘要: A method for train positioning includes: periodically transmitting, by a balise transmission module (BTM), balise data to a vehicle on-board controller (VOBC) according to a rule; periodically receiving, by the VOBC, the balise data transmitted by the BTM, and periodically obtaining a data frame, the data frame comprising a current traveling time tn, a current traveling speed vn, and a current traveling distance sn of a train; and determining, by the VOBC based on the received balise data and the obtained data frame, a location of the train when the train passes a balise.

    An Autonomous Positioning Method For Underground Coal Mine Anti-Explosion Storage Battery Rail Electric Locomotive

    公开(公告)号:US20240190486A1

    公开(公告)日:2024-06-13

    申请号:US17785185

    申请日:2022-01-22

    IPC分类号: B61L25/02 B61F19/06

    CPC分类号: B61L25/026 B61F19/06

    摘要: The invention relates to the field of coal mine electric locomotives, and particularly discloses an autonomous positioning method for an underground coal mine anti-explosion storage battery rail electric locomotive, which comprises the following steps: constructing an underground coal mine dynamic map, scanning the surrounding environment by a laser radar at the frequency of more than 10 HZ, and transmitting data to a vehicle-mounted controller; performing dynamic map construction by the vehicle-mounted controller according to point cloud distribution map; underground electric locomotive is accurately positioned by adopting a static accurate positioning mode, a dynamic accurate positioning mode and a multi-track lateral positioning mode; through fusion of multiple dynamic positioning modes, laser radar positioning is adopted, inertial positioning and passive identification card RF ID positioning are fused, and the positioning precision of the system is greatly improved; three positioning modes are organically fused to provide system adaptability, stability and reliability.

    Intelligent railroad at-grade crossings

    公开(公告)号:US11999399B2

    公开(公告)日:2024-06-04

    申请号:US18179103

    申请日:2023-03-06

    摘要: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for monitoring vehicles traversing a dedicated roadway that includes an at-grade crossing. In some implementations, a system includes a central server, a gate system, and sensors. The gate system provides access to an at-grade crossing for vehicles. The sensors are positioned in a fixed location relative to a roadway, the roadway including the at-grade crossing. Each sensor can detect vehicles on the roadway. For each vehicle, each sensor can generate sensor data and observational data from the generated sensor data. Each sensor can determine a likelihood that the detected vehicle will approach the at-grade crossing by comparing the likelihood to a threshold. In response, each sensor can transmit data to the gate system that causes the gate system to allow the autonomous vehicle access to the at-grade crossing prior to the autonomous vehicle reaching the gate system.

    Automated on-vehicle control system for a rail vehicle

    公开(公告)号:US11999396B2

    公开(公告)日:2024-06-04

    申请号:US17276246

    申请日:2019-09-11

    摘要: An automated on-vehicle rail vehicle control system has an on-vehicle set point value detection unit, an automated train operating system, a driving and braking unit, and additional sensors for detecting environment-related information. The on-vehicle set point value detection unit is configured to determine, based on on-vehicle positioning and map data as well as sensor data from the additional sensors, operative set point values for the control mode and the current driving mission of the rail vehicle. The automated train operating system is configured to generate driving and braking commands based on the set point values of the on-vehicle set point value detection unit. The driving and braking unit is configured to carry out traction and braking operations based on the driving and braking commands so determined. There are also described a rail vehicle and a method for the automated control of a rail vehicle.

    Establishing Resilient PNT in Railroad Infrastructure

    公开(公告)号:US20240159911A1

    公开(公告)日:2024-05-16

    申请号:US18508033

    申请日:2023-11-13

    申请人: Meteorcomm, LLC

    发明人: Derek Edmondson

    IPC分类号: G01S19/21 B61L25/02 G01S19/50

    摘要: Methods and apparatus for detecting of spoofing or jamming activities near a train or other railroad assets uses a message sent from each of a plurality of base stations receiving a wireless packet transmitted by a radio of a railroad asset that reports the PNT information determined by the radio using GNSS and a timestamp for the time of arrival of wireless packet at the base station. The position of the asset is then calculated based on the time arrival of the wireless packet at each base station and compared to the reported position. A warning is generated if the difference exceeds a predetermined threshold.

    REMOTE ENGINE SPEED CONTROL
    10.
    发明公开

    公开(公告)号:US20240149930A1

    公开(公告)日:2024-05-09

    申请号:US18506012

    申请日:2023-11-09

    IPC分类号: B61L25/02 B61L27/10

    CPC分类号: B61L25/021 B61L27/10

    摘要: Methods and systems for selection of a control speed for a remote-controlled vehicle based on rulesets applied to control nodes within a viewing window. In embodiments, a viewing window including control nodes, each having a having ruleset defining operating conditions associated therewith, may be determined. The ruleset for a control node may define operating limitations (e.g., speed limitations, orientation limitations, etc.) at the control node. In embodiments, a control speed plan for the viewing window may be generated based on the operating conditions for each control node within the current viewing window based on the limitations associated with each control node. The control speed plan may include an optimal control speed at each control node within the viewing window and a speed profile indicating an acceleration or deceleration curve to be followed through each of the optimal control speeds in the control speed plan when executing the control speed plan.