Remote Reverse Operation for Unattended Trains

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Solution Overview

Problem

Conventional methods for handling train faults during unattended operation are inefficient and pose safety risks, as they require manual intervention and result in prolonged train dwell times, affecting normal operations and causing passenger panic.

Innovation Solution

A method for remote reverse operation of trains, which involves a zone controller sending information to an ATS, displaying state information, setting instructions for blocking and unblocking remote reverse operation protection areas, and generating commands for on-board controllers to execute remote reverse operations automatically.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a driver is dispatched to manually operate the train in restricted manual drive mode, then the train can be controlled to reverse and leave the section, but the handling time is long, efficiency is low, and personal safety risks exist

Engineering Contradiction:
Improveoperation safetyVSAvoidhandling time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system enables unattended train operation where the train controls itself through automated systems. The on-board controller automatically switches to restricted manual drive mode and executes reverse operations without requiring a driver to board the train, making the system self-sufficient in handling faults

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The zone controller acts as an intermediary between the central ATS and the on-board controller. It receives fault information, determines the need for reverse operation, calculates protection areas, and sends controlled reversal commands to the on-board controller, enabling remote automated handling without manual intervention

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the following train stops in the section for a long time due to front train fault, then safety protection measures can be taken, but normal operation is affected and passenger panic occurs

Engineering Contradiction:
Improvesafety protectionVSAvoidoperation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary safety checks and calculations before executing reverse operation. The zone controller pre-calculates the protection area and reversal path, and the on-board controller pre-switches to restricted manual drive mode, enabling rapid response that minimizes train dwell time while ensuring safety

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual mechanical operations with automated electronic control systems. The zone controller and on-board controller use electronic communication to automatically execute reverse operations, replacing the need for manual driver intervention and significantly reducing handling time

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If manual field operation is used for train rescue, then the train can be controlled to reverse, but the whole rescue process relies on manual intervention which reduces efficiency

Engineering Contradiction:
Improvemanual control capabilityVSAvoidrescue efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system enables automated self-service operation where the on-board controller automatically executes reverse operations based on commands from the zone controller. The train handles its own rescue operation without requiring manual field intervention, significantly improving rescue efficiency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The zone controller serves as an automated intermediary that receives fault information from the on-board controller, determines the need for reverse operation, calculates safety parameters, and sends automated reversal commands. This automated mediation replaces manual field operations and improves rescue efficiency

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250187641A1Method for realizing remote reverse operation during unattended train operation, device and medium
Publication Date: 2025.06.12 CASCO SIGNAL LTD
  • US20250187641A1 patent drawing
  • US20250187641A1 patent drawing
  • US20250187641A1 patent drawing

AI summary

A method for realizing remote reverse operation during unattended train operation, a corresponding device, and a corresponding medium are disclosed. The method includes: S1, sending, by a zone controller, information of a train 1 and a train 2 to ATS; S2, displaying, by an ATS interface, state information of the train 1 and the train 2; S3, setting, by a dispatch terminal, an instruction for blocking a remote reverse operation protection area within a range from a platform A to a platform B; S4, generating a command for blocking the reverse operation protection area in a remote speed-limited mode of the trains according to the instruction for blocking the remote reverse operation protection area set by the dispatch terminal and sending the command for blocking the reverse operation protection area in the remote speed-limited mode of the trains to an interlocking subsystem.