Zone Controller Logic for Safe CBTC Pushing Rescue Trains
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Solution Overview
Problem
Current train rescue systems lack a mature solution for 'pushing' rescue, requiring manual intervention for safety, increasing risk and reducing efficiency, and existing methods only support 'pulling' rescue in CBTC operation mode.
Innovation Solution
A method in a zone controller (ZC) that calculates and manages movement authorities (MA) for 'automatic rescue train protection' to enable safe and efficient 'pushing' rescue, abstracting rescue and rescued trains as 'automatic train protection', calculating collision-allowable speeds and deceleration points to unify processing and ensure safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual intervention is used for safety protection in pushing rescue, then safety risks are increased, but automation extent is reduced
Solution Approach 1:
The system enables automatic self-protection for pushing rescue operations through the ZC calculating movement authorities and collision-allowable speeds. The automatic rescued train protection independently manages safety without requiring manual intervention, allowing the system to serve itself in safety-critical functions.
Solution Approach 2:
The patent replaces manual mechanical observation and safety monitoring with an automated electronic control system. The ZC computes movement authorities and collision-allowable speeds algorithmically, substituting human drivers' cabin observation and manual safety checks with automated calculation and control mechanisms.
2Reliability
If pushing rescue procedures are converted to pulling rescue, then safety protection is effective, but rescue efficiency is reduced and procedure complexity increases
Solution Approach 1:
The system changes the operational parameters of pushing rescue by introducing calculated movement authorities and collision-allowable speeds. Instead of converting to pulling rescue, the parameters of pushing operations are adjusted through automated computation to achieve safe and efficient rescue operations directly in pushing mode.
Solution Approach 2:
The ZC system provides universal safety protection for both pulling and pushing rescue operations through a unified automatic train protection framework. The same ZC calculates movement authorities for different rescue modes, making the safety system multi-functional and applicable to various rescue scenarios without requiring separate manual procedures.
3Reliability
If personnel are stationed for line observation in pushing rescue, then safety is ensured manually, but rescue efficiency is reduced
Solution Approach 1:
The patent replaces manual line observation by personnel with automated electronic monitoring through the ZC system. The ZC continuously calculates movement authorities and monitors train positions, substituting human observation with automated detection and control mechanisms that provide continuous safety monitoring without requiring additional personnel.
Solution Approach 2:
The automatic rescued train protection system performs self-monitoring and self-protection functions. The system independently calculates collision-allowable speeds and movement authorities, enabling the rescue operation to monitor its own safety status without external personnel intervention, thereby improving efficiency while maintaining reliability.
Data Source
AI summary
The present invention relates to a pushing rescue train management method in a zone controller (ZC), a device, and a medium. The method includes the following steps: step A: activating a train rescue zone in the ZC; step B: updating, by the ZC, “automatic rescue train protection” to a going-to-rescue state; step C: calculating, by the ZC, going-to-rescue movement authority (MA) for the “automatic rescue train protection” in the going-to-rescue state to “automatic rescued train protection”; step D: updating, by the ZC, the “automatic rescue train protection” to a performing-rescue state; and step E: calculating, by the ZC, pushing rescue MA for the “automatic rescue train protection”. Compared with the prior art, the present invention has advantages of a highly abstract processing mechanism, applicability to various train rescue scenarios, and the like.