Decentralized Interlocking Track Device Wireless Route Management
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Solution Overview
Problem
Current interlocking systems for managing train routes at interlocking areas are complex and costly, requiring specific wiring architectures and centralized control systems, which complicates efficient and flexible management of train movements.
Innovation Solution
An intelligent interlocking track device with a wireless communication system and autonomous control module that manages its own status (lock or release) based on time-dependent reservations, allowing self-sufficiency in handling multiple requests from guided vehicles and avoiding conflicts by determining non-conflicting routes, and communicating directly with vehicles for reservation management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a centralized interlocking control system is used to manage train routes, then route management capability is provided, but system complexity and wiring requirements increase
Solution Approach 1:
The patent divides the centralized interlocking control system into multiple autonomous interlocking track devices distributed along the railway track. Each device independently manages route establishment and conflict detection for its local section, eliminating the need for a single complex centralized control system while maintaining comprehensive route management capability across the entire railway network.
Solution Approach 2:
The patent introduces wireless communication as an intermediary between interlocking track devices and guided vehicles, replacing complex physical wiring architectures. This allows autonomous devices to exchange route reservation information and conflict data without requiring extensive cable infrastructure, thereby reducing system complexity while preserving full inter-device communication capability.
2Adaptability or versatility
If a centralized interlocking control system is used, then route management is achieved, but cost increases due to wiring architecture
Solution Approach 1:
The patent replaces the mechanical wiring system with a wireless communication system. Interlocking track devices communicate route reservations, conflict information, and control commands via wireless signals instead of physical cables, dramatically reducing installation costs and infrastructure requirements while maintaining full route management functionality.
Solution Approach 2:
Each interlocking track device autonomously performs route establishment, conflict detection, and control operations without requiring centralized processing. This self-sufficient operation eliminates the need for expensive centralized control infrastructure and reduces overall system cost while maintaining comprehensive route management capability across the railway network.
3Device complexity
If autonomous interlocking track devices are deployed, then system simplicity and cost-effectiveness improve, but coordination capability must be enhanced
Solution Approach 1:
The patent implements a feedback mechanism where interlocking track devices continuously exchange information about route reservations and conflict status with neighboring devices via wireless communication. This real-time feedback enables autonomous devices to coordinate their operations, detect conflicts, and adjust route establishment decisions to maintain safe and efficient train operations across the entire network despite the decentralized architecture.
Data Source
Figure 1
AI summary
The present invention proposes a method and an interlocking track device (11) for establishing and managing a route (4) for an approaching guided vehicle (3) at an interlocking area (1), said interlocking track device (11) comprising: - a wireless communication device (22) for remotely communicating with at least one guided vehicle; - an intelligent control system (23) configured for managing a request for reservation of the approaching guided vehicle (3), wherein said intelligent control system (23) is able to determine whether said reservation temporally overlaps with another reservation, said intelligent control system (23) comprising : ■ a memory for recording said reservation if and only if no overlap has been determined; ■ a command module configured for locking the interlocking track device (11) according to each reservation recorded in said memory.