Checking Apparatus Synchronization for Distributed Control Unit Testing
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Solution Overview
Problem
Existing checking apparatuses face challenges in synchronizing computation units over long distances, leading to inaccuracies in temporal association between closed-loop control units and testing apparatuses, and suffer from time drift issues in clock signals, which are inadequate for distributed testing across multiple sites.
Innovation Solution
A method and apparatus for synchronizing checking apparatuses using a first computation unit with a model code and a time signal converter unit, which includes a time signal interface, changeover signal transmission, and timing transmission units to generate and stabilize timing signals, allowing for synchronization across significant distances by calculating and utilizing a time difference between global and local time scales.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If checking apparatuses are distributed across multiple sites over long distances, then testing versatility and adaptability are improved, but time synchronization accuracy deteriorates due to clock signal drift
Solution Approach 1:
The patent introduces a time signal converter unit as an intermediary component that receives time signals from a global time signal source and converts them into synchronized time signals for local computation units. This mediator eliminates direct dependence on distant clock signals, thereby maintaining synchronization accuracy across distributed sites while preserving testing versatility.
Solution Approach 2:
The system segments the time synchronization function into separate components: a global time signal source, time signal converter units at each site, and local computation units. This segmentation allows each component to perform its function independently, enabling distributed testing while maintaining precise time synchronization through the coordinated operation of segmented elements.
2Adaptability or versatility
If computation units are physically separated for distributed testing, then system adaptability is improved, but temporal association accuracy deteriorates
Solution Approach 1:
The time signal converter unit serves as an intermediary that bridges the physical separation between computation units and the global time source. It receives time signals locally and provides synchronized timing to computation units, thereby maintaining temporal association accuracy despite physical separation and enabling flexible distributed configurations.
Solution Approach 2:
The patent implements local time signal conversion at each distributed site, where the time signal converter unit processes global time signals locally to generate synchronized timing for local computation units. This local processing ensures that each site maintains accurate temporal association independent of its physical distance from other sites, while still enabling distributed system functionality.
3Device complexity
If standard clock signals are used for synchronization, then device complexity is reduced, but synchronization reliability deteriorates over long distances
Solution Approach 1:
The time signal converter unit acts as an intermediary that receives standard time signals from a global source and converts them into reliable synchronized signals for local use. This intermediary component isolates the system from the negative effects of long-distance signal transmission while maintaining simplicity by using standard time signal interfaces, thereby improving reliability without significantly increasing complexity.
Data Source
AI summary
A method is disclosed for synchronizing a checking apparatus, in which the checking apparatus is configured for testing at least one first electronic closed-loop control unit. Further disclosed is a checking apparatus which is transferable to a synchronized state. Additionally disclosed is a composite system which includes at least two checking apparatuses. Also disclosed are a checking apparatus for testing at least one first closed-loop control unit, and a composite system including at least one checking apparatus and a further checking apparatus, the latter checking apparatus being configured to have the same effect as the first checking apparatus.