Train Movement Authority Transformation in Rail Networks
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Solution Overview
Problem
Current systems for transforming movement authority limits in rail networks face challenges in accurately transforming and enforcing these limits to prevent collisions, particularly in complex track networks, where conflicts may arise and existing conflicts may be masked or hidden.
Innovation Solution
A computer-implemented method for transforming movement authority limits by determining authorities associated with switches, track segments, and switch legs, using authority data and train authority data to provide accurate and conflict-free authority transformations, ensuring safe train operations through a management system integrated with on-board and back office systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If movement authority limits are transformed using conventional methods in complex track networks, then the transformation process can be completed, but conflicts of authority may be introduced or existing conflicts may be masked
Solution Approach 1:
The patent segments the track network into discrete blocks and divides movement authority into authoritative segments with defined boundaries. Each block is assigned specific authority limits, and the system processes transformations block-by-block rather than as a whole network, reducing the complexity of managing authority in complex track networks while preventing conflicts through systematic segmentation.
Solution Approach 2:
The patent applies local quality by determining authority limits for each specific block and authoritative segment individually, considering local track conditions, switch positions, and signal states. The system evaluates authority transformations locally at each block boundary and switch point, ensuring accurate conflict detection and resolution tailored to each specific location rather than applying uniform rules across the entire network.
2Reliability
If movement authority limits are transformed to ensure safe operation, then collision prevention is improved, but the transformation process may introduce conflicts where none existed
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors authority limits, block assignments, and train positions, then adjusts authority transformations based on real-time conditions. The system provides feedback loops that verify authority transformations against actual track states, signal conditions, and switch positions, preventing the introduction of conflicts by continuously validating transformations against current operational realities.
Solution Approach 2:
The patent applies preliminary anti-action by proactively detecting potential authority conflicts before they manifest as actual hazards. The system performs preliminary validation of authority transformations, checking for conflicts at block boundaries and switch points before finalizing the transformation, thereby preventing harmful authority conflicts from being introduced while maintaining safe operation standards.
3Productivity
If conventional authority transformation methods are used, then the system can operate, but existing conflicts of authority may be hidden or masked
Solution Approach 1:
The patent employs visual indicators and status flags (analogous to color changes) to highlight authority conflicts and abnormal conditions during transformation processes. The system uses distinct indicators to mark blocks with authority issues, switch points with potential conflicts, and authoritative segments requiring attention, ensuring that existing conflicts remain visible and are not masked during operational transformations.
Solution Approach 2:
The system provides continuous feedback regarding authority conflict status, maintaining visibility of conflicts through reporting mechanisms that inform operators and control systems of existing authority issues. This feedback ensures that productivity gains from automated transformations do not come at the cost of hiding underlying authority conflicts.
Data Source
AI summary
A computer-implemented method of transforming movement authority limits for a train traveling in a track network, which includes determining authority of tracks associated with a switch, based at least partially on authority data and/or train authority data for the train, and providing authority on a switch leg of the switch based at least partially on the authority of the associated tracks. The computer-implemented method also includes determining authority of tracks associated with switches on at least two tracks, based at least partially on authority data and/or train authority data for the train, and providing authority on a crossover track between the at least two tracks based at least partially on the authority of the associated tracks.