Serial Signal Phase Difference Detection for Communication Quality
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Solution Overview
Problem
Existing technologies lack the capability for accurate evaluation of communication quality in industrial machines and communication devices.
Innovation Solution
A communication device and method that include a transmission unit, a first phase difference determination unit to determine the phase difference between a reference clock signal and the serial transmission signal, and a determination unit to identify abnormalities based on exceeded threshold values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If noise level detection is used to evaluate communication quality, then the evaluation can be performed, but the accuracy of communication quality evaluation is insufficient
Solution Approach 1:
The communication quality evaluation is segmented into multiple independent measurement dimensions: noise level detection, phase difference detection, and bit error rate detection. Each dimension independently evaluates a specific aspect of communication quality, and the results are combined to provide a comprehensive assessment. This segmentation allows for more precise measurement in each dimension while maintaining overall evaluation accuracy.
Solution Approach 2:
The determination unit is designed with multi-functionality to perform various types of measurements including noise level detection, phase difference detection between clock signals and data signals, and bit error rate detection. This universal measurement capability enables comprehensive communication quality evaluation without requiring separate dedicated devices for each measurement type, thereby improving both accuracy and information completeness.
2Measurement precision
If multiple measurement parameters are used to improve evaluation accuracy, then communication quality assessment becomes more comprehensive, but the device complexity increases
Solution Approach 1:
Multiple measurement functions including noise level detection, phase difference detection, and bit error rate detection are merged into a single determination unit. This integration allows the system to perform comprehensive communication quality evaluation using multiple parameters while avoiding the complexity of having separate independent measurement devices for each function. The merged structure shares common resources and processing logic, reducing overall system complexity.
Solution Approach 2:
The determination unit is designed as a universal measurement device that can perform multiple types of measurements (noise, phase difference, bit errors) through a single integrated structure. This multi-functional design eliminates the need for multiple specialized devices, thereby improving measurement precision across different parameters while keeping the device complexity manageable through resource sharing and unified control.
Data Source
AI summary
The present invention provides a communication device, an industrial machine, and a communication-quality-determining method. A communication device is provided with: a transmission unit for transmitting a serial signal; a first phase difference determination unit for determining a first phase difference which is a phase difference between a first reference clock signal having the same period as the 1-bit period of a serial transmission signal which is the serial signal transmitted from the transmission unit and an edge of the serial transmission signal transmitted from the transmission unit; and a determination unit for determining that there is an abnormality with the serial transmission signal transmitted from the transmission unit when the first phase difference exceeds a first phase difference threshold.