Multi-Type Cable Fault Location Using Segmented Data Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional cable fault location methods using cable and antenna analyzers are inaccurate for multi-type cable systems due to inability to distribute scan data according to different cable parameters, leading to significant deviations in fault point location.
Innovation Solution
A method involving initial data setup, data segmentation, linear compensation of measurement data, and calculation of DTF_SWR to accurately determine fault points in multi-type cable systems, utilizing formulas to adjust for varying cable lengths and losses, and a device with a processor to execute this method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional cable and antenna analyzer is used for fault location, then the device is simple and easy to operate, but the measurement precision deteriorates in multi-type cable systems due to inability to distribute scan data according to different cable parameters
Solution Approach 1:
The patent divides the continuous cable system into multiple discrete cable segments, each with its own parameters (velocity factor, loss, impedance). The scan data is segmented and distributed to corresponding cable segments for separate processing, enabling accurate fault location in multi-type cable systems by treating each segment independently with its specific characteristics.
2Adaptability or versatility
If traditional single-type cable processing method is used, then the processing method is simple, but the adaptability deteriorates when dealing with multiple types of cables with different parameters
Solution Approach 1:
The patent applies local quality by assigning different parameters (velocity factor, loss, impedance) to different cable segments based on their specific characteristics. Each cable segment is processed with its own localized parameters rather than using a single uniform set of parameters for the entire cable system, thereby achieving accurate measurement across multi-type cables.
3Measurement precision
If linear compensation is applied to each cable segment separately, then the measurement precision improves, but the calculation complexity increases
Solution Approach 1:
The patent performs preliminary actions by pre-storing the parameters of each cable segment (velocity factor, loss, impedance) before measurement. During actual fault location, these pre-stored parameters are directly applied to the corresponding segments, avoiding repeated calculations and reducing processing time while maintaining high measurement precision.
Data Source
AI summary
A method for accurate fault location in a multi-type cable connection system is provided that includes, first normalizing the measurement parameters, then grouping the data, calculating compensation correction, finding the maximum value of the data, and comparing whether the cable has faults or not. By means of a blended data automatic analysis algorithm of the method, in the presence of multiple cables, data obtained through one-time measurement can be accurately identified to determine specific data of each scanning point that belongs to each cable, and after data allocation is completed, each group of data is separately corrected by using cable parameters corresponding to the group of data, thereby obtaining an accurate fault position and a DTF return loss result.