Time-Correlated Measurement of Multi-Network Signals
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Solution Overview
Problem
Existing methods for data traffic analysis in complex systems with multiple communication networks, such as CAN and LIN, require separate measurement and analysis, which is inefficient and does not account for inter-network delays, affecting system performance and accuracy.
Innovation Solution
A system and method for simultaneous time-correlated measurement and analysis of signals from multiple communication networks, allowing for the display and correlation of message frames across different protocols, enabling efficient monitoring and optimization of inter-network communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate measurement and analysis methods are used for different communication networks, then device complexity is reduced, but measurement precision and ability to detect inter-network delays deteriorate
Solution Approach 1:
The patent combines multiple network signal analysis channels into a single unified measurement system. The oscilloscope simultaneously captures and correlates signals from CAN, LIN, and other communication networks using a common time base, enabling precise measurement of inter-network delays while avoiding the complexity of multiple separate measurement systems.
Solution Approach 2:
The measurement system is designed to universally handle multiple communication protocols (CAN, LIN, and others) through a single instrument. The system can simultaneously analyze different network types with different protocols and data speeds, providing multi-functional capability without requiring protocol-specific separate devices.
2Measurement precision
If simultaneous time-correlated measurement of multiple networks is implemented, then measurement precision and delay detection improve, but device complexity increases
Solution Approach 1:
The patent segments the complex measurement task into distinct functional modules: signal acquisition from multiple networks, time-stamping with common time base, protocol-specific decoding, and correlated display. This modular segmentation enables precise time-correlated measurement while managing system complexity through organized functional separation.
Solution Approach 2:
The system uses a common time base as an intermediary reference that synchronizes measurements across all networks. This time correlation mechanism acts as a mediator that enables precise timing comparison between different protocols without requiring direct synchronization between networks, simplifying the measurement architecture.
3Ease of operation
If separate analysis methods are used for different protocols, then ease of operation is maintained, but loss of information about inter-network communication occurs
Solution Approach 1:
The patent adds a time correlation dimension to the analysis by displaying signals from different networks with synchronized time bases. This temporal dimension enables operators to visually correlate events across networks while maintaining the simplicity of separate protocol analysis, preventing information loss about inter-network timing relationships.
Data Source
AI summary
A system and a method for simultaneous measurement and analysis of network signals on multiple communication networks are described. Accordingly, in one embodiment, the system accepts signals from two communication networks. The two networks may be following different protocols. A time-correlated measurement of corresponding frames of two protocols may be provided. Information pertaining to message frames of different networks may be displayed simultaneously.