Train Location Determination via EOT Device Communication
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Solution Overview
Problem
Current train-to-train systems face challenges in accurately determining the location of trains without remote server updates, leading to potential collisions due to incorrect crew responses and inefficiencies in receiving timely location data and alerts, especially when the remote server fails.
Innovation Solution
A computer-implemented train-to-train warning method that allows head of train computers to receive information notifications from end of train devices, enabling identification of train positions and conditions, and generating actions to control train movements based on this data, even when remote server updates are unavailable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the remote server is used to send train location updates, then the PTC system can receive location data, but when the remote server fails or does not send updates, the system cannot efficiently receive or generate accurate location data about other trains
Solution Approach 1:
The patent introduces an intermediary mechanism where the local PTC system acts as a mediator by receiving train location data directly from track circuits and other trains' EOT devices, rather than solely relying on the remote server. This intermediary capability allows the system to obtain location information through multiple channels, resolving the contradiction between reliability and server dependency.
Solution Approach 2:
The patent enables the PTC system to self-generate location data by directly interfacing with track circuits and receiving transmissions from EOT devices. This self-service capability allows the system to independently determine train locations without requiring external server updates, thereby improving reliability while reducing dependency on the remote server.
2Ease of operation
If the crew manually responds to PTC prompts about train locations, then the system can enforce conditional authorities, but the crew may respond incorrectly assuming a train has passed when it has not, creating collision risks
Solution Approach 1:
The patent implements automatic feedback mechanisms where the PTC system continuously receives real-time location data from track circuits and EOT devices. This automated feedback replaces manual crew responses with objective, verifiable location information, eliminating human error while maintaining the conditional authority enforcement process.
Solution Approach 2:
The patent substitutes the mechanical human response process with an automated electronic system that directly queries and processes location data from track circuits and EOT devices. This replacement eliminates the possibility of incorrect manual responses while preserving the safety function of confirming train locations before granting authorities.
3Productivity
If the PTC system waits for remote server updates to determine train locations, then the system maintains centralized control, but the system cannot efficiently or safely receive timely indications that trains are running too close together
Solution Approach 1:
The patent segments the centralized location data reception function into distributed local capabilities. Each PTC system can independently receive location data from local track circuits and nearby EOT devices, eliminating the need to wait for centralized server updates. This segmentation improves the speed of location data reception while distributing the communication burden across multiple independent channels.
Data Source
AI summary
A train-to-train warning system and method for communicating an information notification, may include receiving or sensing, by a head of train computer of a listener train, an information notification originating from an end of train device associated with a first train in a geographic area, identifying the first train based on at least one of the position of the first train or the identifier associated with the first train, determining, one or more events or conditions of the first train in the track network based on the information notification, generating an updated operation of the listener train including one or more actions, the updated operation based on the one or more events or conditions associated with the first train, and controlling a movement of the listener train based on at least one of the one or more actions.