Train Control System Dynamic Resource Allocation
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Solution Overview
Problem
Existing train control systems face challenges in managing route resources efficiently, leading to operational inefficiencies, deadlocks, and increased risk of conflicts due to concurrent train operations, which limits transport capacity and safety.
Innovation Solution
A train control system and method utilizing a dispatching center server, trackside resource manager, and vehicle-mounted train control device to manage and allocate route resources dynamically, ensuring safe positioning and communication between trains, and implementing conflict and sequencing management to optimize resource use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional route-based resource management is used, then system reliability is maintained through exclusive resource allocation, but route passing-through capacity is limited due to resource idle time
Solution Approach 1:
The patent implements dynamic resource allocation by allowing route resources to transition between exclusive and shared states based on real-time train positions and operational conditions. The system dynamically adjusts resource allocation policies, enabling multiple trains to share routes when safe and maintaining exclusive allocation when safety requires, thus resolving the contradiction between capacity and safety.
Solution Approach 2:
The system changes the allocation state parameter of route resources from static exclusive allocation to dynamic states including exclusive, shared, and locked. By modifying this parameter based on operational context, the system achieves both high capacity utilization and safety guarantees.
2Productivity
If multiple trains concurrently apply for route resources, then transport capacity is improved, but resource competition and deadlock risks increase
Solution Approach 1:
The system implements feedback mechanisms where trains continuously report their positions and resource usage status to the control system. The control system processes this feedback and dynamically adjusts resource allocation to prevent deadlock conditions, allowing concurrent train operations while maintaining system reliability through real-time monitoring and adjustment.
Solution Approach 2:
The control system acts as an intermediary between multiple trains competing for route resources. It coordinates resource allocation, manages concurrent applications, and prevents deadlock by mediating between conflicting train requests, thus enabling high transport capacity without compromising reliability.
3Reliability
If exclusive resource allocation is used, then operation safety is ensured through conflict avoidance, but resource utilization efficiency decreases
Solution Approach 1:
The system segments route resources into multiple allocation states (exclusive, shared, locked) rather than using a single exclusive allocation mode. This segmentation allows different portions of the system to operate under different allocation policies simultaneously, ensuring safety in critical segments while improving efficiency in non-critical segments.
Solution Approach 2:
Route resources are designed with multi-functional allocation capabilities, serving both exclusive and shared modes depending on operational needs. This universality allows the same resource to provide safety guarantees when exclusive allocation is required while enabling efficient utilization through shared allocation when conditions permit.
4Reliability
If traditional interlocking and train control systems are used, then safety functions are replicated, but system complexity and response time increase
Solution Approach 1:
The patent merges the safety functions of traditional interlocking and train control systems into a unified resource management framework. By combining these previously separate functions into a single integrated system that handles both resource allocation and safety control, the system reduces overall complexity while maintaining comprehensive safety functionality.
Data Source
AI summary
A train control system and a control method based on resource management are disclosed. The system includes a dispatching center server, a trackside resource manager and a vehicle-mounted train control device. The vehicle-mounted train control device is connected to the dispatching center server and the trackside resource manager respectively; the dispatching center server is used to monitor and control the operation of a train; the trackside resource manager is used to manage a resource, control a switch, establish a movement authorization direction, and control an annunciator; and the vehicle-mounted train control device is used to calculate safe positioning, calculate a movement authorization, release a route resource, establish a train-train communication with front and back trains when the route resource is in a “shared” state to interact the safe positioning of the trains in real time, and determine an end point of the movement authorization for the back train.