Signal Transceiving Device Synchronization Point Detection
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Solution Overview
Problem
Noise interference in power line transmission makes it difficult to accurately detect the synchronization point in voltage signals, which is crucial for effective power information communication and management in smart power networks.
Innovation Solution
A signal transceiving device and method that performs correlation calculations with predetermined patterns to generate weighting values, determining the synchronization point based on specific conditions met by these values, thereby reducing erroneous detections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If correlation calculation is performed with a single predetermined pattern, then the detection process is simple, but the accuracy of synchronization point detection deteriorates due to noise interference
Solution Approach 1:
The patent divides the detection process into multiple independent correlation calculation stages, each using a different predetermined pattern. Instead of relying on a single detection method, the system segments the problem into multiple pattern-matching operations with different weighting strategies, thereby improving robustness against noise while maintaining manageable complexity through modular processing.
Solution Approach 2:
The patent changes the parameters of the correlation calculation by using multiple different predetermined patterns with varying weighting values. Each pattern represents a different parameter configuration for detecting the synchronization point, allowing the system to adapt to noisy conditions by selecting or combining results from multiple parameter sets rather than relying on a single fixed configuration.
2Measurement precision
If multiple correlation calculations with different patterns are performed, then the accuracy of synchronization point detection is improved, but the device complexity increases
Solution Approach 1:
The patent segments the complex detection task into multiple independent correlation calculation modules, each handling a specific predetermined pattern. This segmentation allows the system to achieve high detection accuracy through multiple specialized sub-processes while keeping each individual module relatively simple and manageable.
Solution Approach 2:
The patent merges the results from multiple correlation calculations with different predetermined patterns and weighting values to produce a final synchronization point detection decision. By combining the strengths of multiple detection approaches, the system achieves superior accuracy while distributing the computational complexity across multiple coordinated operations rather than requiring a single overly complex detector.
3Reliability
If weighting values are generated based on correlation results, then noise interference is reduced, but the computational load increases
Solution Approach 1:
The patent dynamically changes the weighting parameters based on the correlation calculation results. By adjusting the weighting values according to how well each predetermined pattern matches the received signal, the system enhances reliability under noisy conditions while avoiding unnecessary computational effort on clearly invalid detection candidates, thus balancing reliability improvement with computational efficiency.
Data Source
AI summary
A signal transceiving device includes a transceiver and a microprocessor. The transceiver receives a signal from a power line. The microprocessor performs correlation calculation for the signal with a first predetermined pattern to obtain a plurality of first calculation results, performs correlation calculation for the signal with a second predetermined pattern to obtain a plurality of second calculation results, generates a plurality of weighting values according to the first calculation results and determines a position of a synchronization point in the signal according to the weighting values. When the weighting value corresponding to a sample point of the signal satisfies a first condition and the second calculation result corresponding to the sample point satisfies a second condition, the microprocessor determines to use the sample point as the synchronization point.