On-Board ATP Movement Authorization via Vehicle-to-Vehicle Cooperation
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Solution Overview
Problem
Traditional communication-based train control systems (CBTC) have complex trackside ATP designs due to centralized calculation methods, which increase the likelihood of errors and require extensive numerical calculations and interface support between adjacent trackside ATPs, complicating the system and reducing reliability.
Innovation Solution
A train movement authorization method based on vehicle-to-vehicle cooperation, where on-board ATPs calculate movement authorization through direct information interaction with downstream trains, reducing the complexity of the trackside ATP by shifting calculation functions and removing the need for numerical calculation and interface modules between trackside ATPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized calculation method is used in trackside ATP, then movement authorization can be calculated for all trains, but system complexity increases and reliability decreases
Solution Approach 1:
The patent extracts the movement authorization calculation function from the trackside ATP system and relocates it to on-board ATP devices. This removes the complex centralized calculation burden from the trackside system, retaining only simple train information maintenance and exchange functions, thereby reducing trackside ATP complexity while maintaining system reliability.
Solution Approach 2:
The patent segments the train control system into distinct functional modules: trackside ATP handles only information maintenance and exchange, while on-board ATP handles movement authorization calculation. This segmentation distributes computational complexity to multiple on-board units rather than concentrating it in the trackside system, reducing overall trackside complexity.
2Productivity
If trackside ATP maintains information of all trains in management region and adjacent regions, then train operation continuity is ensured, but calculation burden and interface complexity increase
Solution Approach 1:
The patent extracts the movement authorization calculation function from the trackside ATP system and relocates it to on-board ATP devices. This removes the complex centralized calculation burden from the trackside system, retaining only simple train information maintenance and exchange functions, thereby reducing trackside ATP complexity while maintaining system reliability.
Solution Approach 2:
The patent segments the train control system into distinct functional modules: trackside ATP handles only information maintenance and exchange, while on-board ATP handles movement authorization calculation. This segmentation distributes computational complexity to multiple on-board units rather than concentrating it in the trackside system, reducing overall trackside complexity.
3Reliability
If numerical calculation function is kept in trackside ATP, then centralized control is maintained, but system complexity and error probability increase
Solution Approach 1:
The patent extracts the movement authorization calculation function from the trackside ATP system and relocates it to on-board ATP devices. This removes the complex centralized calculation burden from the trackside system, retaining only simple train information maintenance and exchange functions, thereby reducing trackside ATP complexity while maintaining system reliability.
Data Source
AI summary
A train movement authorization method includes obtaining, by a train, current task information from an automatic train supervision system; obtaining, by the train, current resource allocation information from a trackside resource management center; reckoning, by the train, a first train in an operation direction downstream of the train based on the received resource allocation information; sending, by the train, a location request to the first train in the operation direction downstream of the train based on an operation task of the train and responding to a location request of another train; calculating, by the train, movement authorization of the train based on train information sent by the first train downstream in the operation direction; and applying for, by the train, a corresponding line resource from the trackside resource management center based on the task of the train and a status of the calculated movement authorization.