Pipeline-Following Sensor Layout for Safe Cable Installation
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Solution Overview
Problem
Installing monitoring cables near existing buried pipelines is challenging due to uncertainties in pipeline location, diameter, and depth, which can lead to accidental strikes and safety hazards, especially since many pipelines lack initial monitoring systems and existing installation methods are inefficient for pre-existing pipelines.
Innovation Solution
An apparatus and method using a machine frame with proximity sensors to detect electromagnetic signals from buried pipelines, allowing for precise installation of monitoring cables at a safe distance, accounting for pipeline anomalies and errors in location estimation, and enabling installation near pre-existing pipelines with uncertain positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional installation methods are used for pre-existing pipelines, then installation efficiency is improved, but safety risk increases due to uncertainties in pipeline location, diameter, and depth
Solution Approach 1:
The patent replaces conventional mechanical location methods (manual probing, visual inspection) with electromagnetic sensing technology. Sensors mounted on the installation machine detect electromagnetic fields emanating from the pipeline to determine its precise location, depth, and diameter, enabling safe and efficient installation without physical contact or trial-and-error approaches
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary between the installation machine and the pipeline. The sensors detect this intermediary field to indirectly measure pipeline parameters and location, allowing the machine to navigate and install monitoring cables at safe distances without directly interacting with the pipeline
2Reliability
If monitoring cables are installed closer to the pipeline, then monitoring effectiveness is improved, but the risk of accidental strikes increases
Solution Approach 1:
The patent implements a feedback control system where sensors continuously monitor the electromagnetic field strength, which correlates with distance to the pipeline. This real-time feedback allows the control system to adjust the machine's position and plow depth dynamically, maintaining the monitoring cable at an optimal safe distance that balances monitoring effectiveness with strike prevention
Solution Approach 2:
The patent transforms the static installation process into a dynamic one by continuously adjusting the machine's operation based on real-time sensor data. The system adapts to variations in pipeline location, depth, and terrain conditions, enabling the cable to be installed as close as safely possible to maximize monitoring effectiveness while preventing strikes
3Loss of time
If pipeline location estimation is performed with standard methods, then installation time is reduced, but measurement precision deteriorates due to anomalies and errors
Solution Approach 1:
The patent replaces imprecise mechanical location estimation methods with electromagnetic sensing technology that can detect pipeline parameters through soil and variations in terrain. The sensors measure electromagnetic field characteristics to accurately determine pipeline location, depth, and diameter without being affected by surface conditions or requiring extensive manual surveying
Solution Approach 2:
The patent changes the measurement parameter from mechanical probing to electromagnetic field detection. By measuring the strength, frequency, and phase of electromagnetic fields emanating from the pipeline, the system can accurately determine pipeline parameters even in the presence of soil anomalies, rocks, or other underground obstructions that would interfere with mechanical methods
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
Enables safe and effective installation of monitoring cables close to buried pipelines, reducing the risk of accidental strikes and improving pipeline monitoring capabilities for leak detection and hazard mitigation.
Implementation Method 1
The first and second proximity sensors are longitudinally spaced and both capable of detecting an electromagnetic field emanating from the buried pipeline
Implementation Method 2
The method comprises inducing an electromagnetic signal on a length of buried pipeline
Data Source
AI summary
A method and apparatus for installing a monitoring cable or other utility near an existing pipeline. An electromagnetic signal may be induced on the pipeline, either directly, or by transmitting a signal from a vehicle carrying a sensor array. The sensors disposed on the vehicle communicate with a processor to determine a distance and orientation of the vehicle relative to the pipeline. The signal may be electromagnetic, acoustic, capacitive, or the like. A plow or other digging tool may be on the vehicle or a secondary vehicle. Such a digging tool opens a trench and installs the cable along a path disposed next to the pipeline within an acceptable distance range from the pipeline. The vehicle may be remotely or automatically operated.