3D Curved Cable Characterization for Overbending Detection
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Solution Overview
Problem
Existing methods for assessing cable loop dimensions are inaccurate and time-consuming, particularly in identifying overbending and potential installation errors, leading to cable damage and reduced lifespan.
Innovation Solution
A method utilizing a 3D capturing device to create a 3D image of a cable loop, analyze center points along the center axis, and map them in a three-dimensional coordinate system to determine the cable's center axis trace, enabling precise characterization of the curved length and identifying potential installation errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement tools and methods are used to assess cable loop dimensions, then the assessment process can be performed with simple equipment, but the measurement precision and accuracy are insufficient and time-consuming
Solution Approach 1:
The patent replaces manual mechanical measurement tools with a 3D scanning system that uses optical/laser technology to capture cable loop dimensions. The scanning device automatically records spatial coordinates and generates three-dimensional models, eliminating the need for manual measurement tools while significantly improving measurement precision and reducing time consumption.
Solution Approach 2:
The patent creates a digital 3D copy of the cable loop by scanning its geometry and generating a virtual model. This digital replica allows for precise measurement and analysis without physically touching or disturbing the cable, enabling accurate dimension assessment while saving time compared to manual measurement methods.
2Extent of automation
If 3D scanning is used to map cable loops, then measurement precision and automation are improved, but the device complexity increases
Solution Approach 1:
The patent employs a multi-functional integrated system where the 3D scanning device performs multiple tasks: capturing cable geometry, identifying cable centerlines, measuring loop dimensions, detecting overbending, and generating reports. This consolidation of functions into a single system achieves high automation while managing device complexity through integration rather than separate specialized equipment.
Solution Approach 2:
The system performs self-service by automatically processing the scanned 3D data to extract cable loop dimensions and identify potential issues without requiring manual intervention. The automated analysis algorithms independently interpret the spatial data, calculate measurements, and generate assessments, reducing the need for complex manual processing workflows.
3Reliability
If manual interpretation of lidar images is used, then device complexity can be kept lower, but measurement precision and reliability are reduced due to human error
Solution Approach 1:
The patent replaces manual visual interpretation of lidar images with automated computational algorithms. The system uses software-based processing to analyze the 3D point cloud data, extract cable centerlines, and measure loop dimensions objectively. This substitution eliminates human error and subjectivity while improving reliability, justified by the complexity of the automated processing system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides accurate and efficient assessment of cable loop dimensions, reducing the risk of overbending and enhancing cable reliability by identifying and correcting installation errors.
Implementation Method 1
The 3D capturing device may be a LIDAR, a photogrammetry device, a laser scanning device, a structured light scanning device
Data Source
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AI summary
A method for characterizing a curved length of an installed cable (26, 30, 31) such as a cable loop or a section of a cable loop comprises the following steps: a) providing a 3D image (402) of the curved length of the installed cable (26, 30, 31) by using a 3D capturing device (401); b) analyzing the 3D image to identify multiple center points (35, 36) along the center axis of the curved length of the installed cable (26, 30, 31) and map the multiple center points (35, 36) in a three-dimensional coordinate system, and c) create a three-dimensional trace representing the center axis of the curved length of the installed cable (26, 30, 31) based on the identified multiple center points (35, 36).