Main-Standby Control Center Switching for Rail Line Authority Handover
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Solution Overview
Problem
Current rail transit integrated supervisory control systems face challenges in achieving stable and reliable dual-center handover management due to inadequate consideration of various status factors, such as hardware equipment, network, and dispatcher operations, leading to insufficient accuracy and flexibility in switching between main and standby control centers.
Innovation Solution
A subsystem comprising a status service module, status collection module, main-standby center operation management service module, and main-standby center operation management UI module is deployed to collect and manage real-time status information, allowing for flexible configuration and human-in-the-loop confirmation of switching operations, ensuring accurate and timely transfer of line control authority.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main-standby dual control center mode is adopted to improve system reliability, then fault tolerance and disaster prevention capabilities are enhanced, but the complexity of switching control logic increases due to the need to comprehensively consider hardware equipment, network, software services, and dispatcher working status
Solution Approach 1:
The switching control logic is segmented into multiple independent modules: a status detection module that monitors hardware equipment, network, and software services separately; a dispatcher status monitoring module; and a centralized switching decision module. This segmentation allows each module to handle specific monitoring tasks independently, reducing the complexity of overall control logic while maintaining comprehensive system reliability through multi-factor monitoring.
2Measurement precision
If comprehensive status factors are considered in switching control logic to ensure accurate handover, then switching accuracy is improved, but the system's adaptability to different engineering scenarios decreases due to rigid control structures
Solution Approach 1:
The switching control system implements dynamic adaptability through configurable monitoring parameters and flexible switching strategies. The status detection module can dynamically adjust monitoring thresholds and frequencies based on different engineering scenarios. The centralized switching decision module supports multiple switching strategies (automatic, manual, conditional) that can be configured according to specific operational requirements, allowing the system to maintain high switching accuracy while adapting to diverse engineering contexts.
3Loss of energy
If the standby control center collects only necessary information in hot standby status, then system resource consumption is reduced, but the response time for failure detection may be delayed
Solution Approach 1:
The status detection module implements periodic monitoring of critical system parameters with adjustable intervals. During normal operation, the standby control center performs status checks at optimized intervals to minimize resource consumption. Upon detecting abnormal trends or partial failures, the monitoring frequency automatically increases, ensuring timely failure detection while maintaining energy efficiency during stable operational periods.
4Productivity
If automatic switching is implemented to ensure uninterrupted operation, then system continuity is improved, but the flexibility for manual intervention and confirmation is reduced
Solution Approach 1:
The switching control system incorporates multi-level feedback mechanisms that support both automatic and manual operations. The centralized switching decision module continuously monitors system status and provides feedback to operators about detected anomalies and recommended switching actions. Operators can review system status, confirm automatic switching decisions, or initiate manual switching procedures based on operational requirements. This feedback loop ensures system continuity through automatic response while preserving operator flexibility for manual intervention when needed.
Data Source
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AI summary
The invention discloses a subsystem and a methodfor controlling the switch between a main center and a standby center in anintegrated supervisory control system. The subsystem includes a status service module, a status collection module, a main-standby center operation management service module, and a main-standby center operation management UI module. The status service module, the status collection module, and the main-standby center operation management service module are deployed on the servers of the main-standby control centers and the stations, respectively. The main-standby center operation management UI module is deployed on the workstations of the main-standby control centers and the stations; The status service module communicates with the status collection module and the main-standby center operation management service module separately. The main-standby center operationmanagement service module communicates with the main-standby center operation management UI module. The invention realizes a reliable transfer and handover of the line control authority between the main-standby control centers and the stations, thereby forming a complete, flexible and safe operation switchingsolution for the main-standby control centers in the integrated supervisory control system.