Key Logic State Synchronization in Railway Dispatching
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Solution Overview
Problem
Existing systems for managing key logic states in railway dispatching and traffic control face instability and inefficiency due to the unreliable synchronization and storage of real-time data, leading to potential loss of critical information.
Innovation Solution
A method and system that utilize an initialization unit to obtain and store key logic states in a database, a monitoring unit to update and synchronize these states in real-time, and a synchronization unit to ensure data consistency across the Centralized Traffic Control system, using an autonomous machine for buffering and verification, thereby enhancing data reliability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If key logic states are stored in a data file, then the system can restore key states when abnormal, but the data file is unstable and data is easily lost
Solution Approach 1:
The patent introduces a database as an intermediary component between the CTC system and the autonomous machine. The database serves as a stable, structured storage medium that replaces the unstable data file, providing reliable persistence of key logic states while enabling efficient retrieval and synchronization operations.
Solution Approach 2:
The patent implements a copying mechanism where key logic states are replicated from the CTC system to the autonomous machine through the database. This ensures that both systems maintain consistent copies of the key states, allowing restoration if one copy becomes corrupted or lost.
2Reliability
If key logic states are synchronized in real-time, then the system maintains up-to-date information, but the synchronization process becomes complex and resource-intensive
Solution Approach 1:
The patent implements a feedback mechanism where the monitoring unit continuously compares the current key logic states in the CTC system with the stored states in the database. When changes are detected, the system automatically triggers updates and synchronization operations, ensuring real-time consistency without requiring complex continuous synchronization protocols.
Solution Approach 2:
The monitoring unit performs periodic checks to detect changes in key logic states. Instead of continuous real-time synchronization, the system uses periodic sampling to identify state changes, then triggers updates only when necessary. This reduces the complexity and resource consumption of the synchronization process while maintaining data accuracy.
3Productivity
If the system reads key states from data file for restoration, then recovery is possible, but the restoration process is slow and inefficient
Solution Approach 1:
The patent pre-loads and stores key logic states in the database during normal operation, organizing them in an easily accessible format with associated operating device identifiers. When restoration is needed, the system can quickly retrieve the required states from the pre-organized database structure without performing time-consuming file parsing and processing operations.
Data Source
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AI summary
The present application relates to a method for processing key logic states, including: obtaining a plurality of key logic states; updating the key logic states according to changes of the key logic states; and transmitting the updated key logic states to an autonomous machine to achieve synchronization of key logic states. A system for processing key logic states is further provided.