On-Board Turnout Control for Dense Railway Branch Sections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing train control systems face challenges in ensuring safety, particularly when multiple turnout points are close together, as they require multiple block sections to secure safety, which can lead to inefficiencies and reduced safety in high-density railway operations.
Innovation Solution
A train control system that includes a wayside device for exclusive control between trains in sections and an on-board device that determines if a turnout section is approachable based on matching turnout directions, allowing for safer operation by managing approaching rights and coordinating with higher-level devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple block sections are used to secure safety in turnout sections, then safety is improved, but device complexity and operational efficiency deteriorate
Solution Approach 1:
The patent replaces the mechanical block section system with an on-board turnout device that actively switches track directions. Instead of using multiple fixed block sections to ensure safety, the system uses an on-board switching mechanism controlled by a determination unit that assesses whether the turnout section is approachable based on real-time conditions, thereby reducing infrastructure complexity while maintaining safety
Solution Approach 2:
The on-board device performs self-determination of whether the turnout section is approachable by comparing its own turnout direction with the required direction. The determination unit autonomously evaluates safety conditions and controls the switching mechanism without requiring external block section management, enabling the system to self-regulate safety protocols
2Reliability
If multiple block sections are required for safety control, then safety is improved, but productivity and operational efficiency worsen
Solution Approach 1:
The system transitions from static block section divisions to dynamic on-board switching control. The turnout device can actively change track configurations in real-time based on operational needs, allowing trains to be routed more efficiently through turnouts without being constrained by fixed block section boundaries, thereby improving productivity while maintaining safety through automated determination protocols
Solution Approach 2:
The determination unit performs preliminary assessment of whether the turnout section is approachable before the train actually enters the section. By evaluating turnout direction compatibility and controlling the switching mechanism in advance, the system ensures safety is established beforehand, eliminating the need for restrictive block section protocols that would reduce operational efficiency
3Ease of operation
If turnout direction commands are transmitted from wayside device, then control is improved, but response time and operational flexibility worsen
Solution Approach 1:
Instead of the wayside device transmitting turnout direction commands to the train, the system inverts the control flow by having the on-board determination unit autonomously determine the appropriate turnout direction based on real-time conditions. The on-board device compares its own turnout direction with the required direction and makes switching decisions independently, eliminating communication delays and improving response time while maintaining ease of operation through automated control logic
Data Source
AI summary
One embodiment of the present invention is a train control system which is a device executing an exclusive control between trains for each of a plurality of sections dividing up a track, wherein said train control system comprises: an on-ground device which manages whether each of the trains has a right to advance into each of the sections; and, an on-board device which is mounted on the trains, said trains comprising an on-board branch device, and with respect to one of the sections to which the on-ground device has given a certain train the right to advance, if said section is a branch section, which is a section that includes a branch, and when a branch direction of the train in said branch section and a branch direction of the on-board branch device coincide, said on-board device self-determines whether it is possible to advance into said branch section.