Automatic Train Route Turn-Back Adjustment During Line Interruption

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Solution Overview

Problem

Current urban rail transit systems face challenges in automatically adjusting train routes during line interruptions, relying heavily on manual operations which are prone to errors, and lack effective methods for quickly changing turn-back points.

Innovation Solution

An operation diagram-based method that automatically identifies alternative turn-back points and generates new turn-back plans based on fault positions and line structures, ensuring trains operate in non-fault zones by updating departure intervals and turn-back times, reducing manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual operation is used for route adjustment during line interruption, then flexibility in handling complex situations is improved, but error rate increases and efficiency decreases

Engineering Contradiction:
Improveroute adjustment accuracyVSAvoidroute adjustment efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs automatic route adjustment and turn-back point selection without human intervention. The computer automatically identifies alternative turn-back points, calculates optimal routes, and generates adjustment plans based on fault position information and operation diagrams, eliminating manual errors while maintaining efficiency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations with automated computer-based systems. The system uses algorithms to process fault information, search for alternative turn-back points, and generate route adjustment plans, substituting human decision-making with automated computational processes that improve both accuracy and speed

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

2Productivity

If automatic turn-back control is implemented, then operational efficiency is improved, but adaptability to line interruption situations deteriorates

Engineering Contradiction:
Improveturn-back operation speedVSAvoidturn-back point change capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adapts turn-back points based on real-time fault conditions. Instead of fixed automatic control, the system searches for alternative turn-back points and selects optimal routes according to the specific interruption location, making the automatic system flexible and adaptable to various line interruption scenarios

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (turn-back point location, route selection) based on fault position information. The computer adjusts these parameters dynamically by querying operation diagrams and selecting appropriate alternative turn-back points, enabling adaptive automatic control for different interruption situations

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If complex route adjustment calculations are performed manually, then accuracy in matching operation diagrams is improved, but time consumption increases

Engineering Contradiction:
Improveoperation diagram matching accuracyVSAvoidroute adjustment planning time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual calculation and matching processes with automated computer-based systems. The computer automatically queries operation diagrams, calculates alternative routes, and matches turn-back plans with original operation schedules, achieving high precision while dramatically reducing the time required for route adjustment planning

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

Solution Approach 2:

The system creates and uses digital copies of operation diagrams for automated processing. By storing operation diagram data in computer memory and querying these digital representations, the system can perform rapid calculations and comparisons without manual intervention, maintaining accuracy while reducing time loss

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12252164B2Operation diagram-based method for automatically changing route to turn back in case of interruption
Publication Date: 2025.03.18 CASCO SIGNAL LTD
  • US12252164B2 patent drawing

AI summary

The invention relates to an operation diagram-based method for automatically changing a route to turn back in case of interruption. The method obtains an alternative turn-back point according to the position of a fault point and the information of a line turn-back station, calculates a corresponding turn-back plan of the alternative turn-back point according to an operation diagram of the current day, and finally automatically changes an online train route according to the new turn-back plan, so as to realize automatic turn-back of a train after route adjustment in case of interruption. Compared with the prior art, the method has the advantage of being able to keep the compatibility with an existing operation diagram while quickly changing a route in case of partial line interruption, so as to facilitate quick recovery of planned operation after a fault is removed.