Synchronization Route Switching With Holding-Time Clock Control
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Solution Overview
Problem
Existing synchronous control techniques fail to maintain synchronization when abnormalities occur in all synchronization routes, leading to a loss of synchronization throughout the system.
Innovation Solution
A synchronous control apparatus with an internal clock, multiple internal routes for synchronization packet transmission, a synchronous control unit for clock synchronization, a detection unit for route abnormalities, a route control unit for rerouting synchronization packets, and a holding calculation unit for calculating and adding holding times to synchronization packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple independent synchronization routes are provided, then reliability is improved, but device complexity increases
Solution Approach 1:
The synchronization system is divided into multiple independent routes (Route 0 and Route 1), each capable of operating autonomously. When abnormality occurs in one route, the system segments the synchronization function and switches to the other route, ensuring continuous operation without requiring complex integrated control.
Solution Approach 2:
The system pre-configures multiple independent synchronization routes and establishes route control logic in advance. When abnormality is detected, the predetermined switching mechanism activates immediately without requiring complex real-time decision-making, thus maintaining synchronization while avoiding overly complex control structures.
2Measurement precision
If holding time is calculated and added to synchronization packets, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Each synchronization packet carries its own holding time information that is calculated and added by the transmitting device. The receiving device simply reads this pre-calculated holding time from the packet without requiring complex external calculation mechanisms, thus achieving high synchronization accuracy while keeping the system relatively simple.
Solution Approach 2:
The holding time calculation replaces complex mechanical synchronization adjustments with a computational approach. By calculating and adding holding time values to synchronization packets, the system achieves precise temporal synchronization through data processing rather than mechanical timing mechanisms.
3Reliability
If route switching is implemented upon abnormality detection, then reliability is improved, but ease of operation worsens
Solution Approach 1:
The route control unit continuously monitors the status of synchronization routes and automatically switches between routes based on real-time feedback about route health. This closed-loop control maintains synchronization continuity while eliminating the need for manual route management, as the system self-adjusts based on detected conditions.
Solution Approach 2:
The synchronization route configuration is made dynamic rather than static. The route control unit can adaptively switch between Route 0 and Route 1 based on real-time abnormality detection, allowing the system to respond flexibly to changing conditions without requiring manual reconfiguration or complex operational procedures.
Data Source
AI summary
A synchronous control apparatus includes an internal clock, a plurality of internal routes that are internal routes through which a synchronization packet passes as a part of a communication route and a transmission or reception time of the synchronization packet is acquired from the internal clock, and are internal routes provided in such a manner as to correspond to communication routes of a plurality of systems that are independent of each other, a synchronous control unit configured to synchronize the internal clock using the synchronization packet, a detection unit configured to detect abnormality of the communication route, a route control unit configured to, in a case where abnormality of the communication route has been detected, connect an internal route of a system in which abnormality has been detected to an internal route of a normal system.