Vehicle-Borne Gas Detection Using Wind-Defined Survey Areas
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Solution Overview
Problem
Conventional methods for detecting gas leaks, such as methane, are time-consuming and unreliable, as they rely on manual scanning and are affected by wind dispersal, making it difficult to quickly and accurately locate the source of a gas leak.
Innovation Solution
A vehicle-borne gas concentration measurement system that uses a processor to determine a maximum detection distance based on wind direction data, thereby defining a survey area and generating graphical content on a map to highlight the survey area and guide the search for gas leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual scanning methods are used to locate gas leaks, then the detection process can be performed with simple equipment, but the search is time-consuming and unreliable due to wind dispersal
Solution Approach 1:
The system performs preliminary calculations to determine the survey area boundary before the actual gas leak search begins. By pre-calculating the maximum detection distance based on wind direction and creating a defined survey area, the system prepares the search parameters in advance, allowing the detection vehicle to systematically cover the most likely areas rather than searching randomly, thus reducing search time while maintaining reliability
Solution Approach 2:
The patent introduces an intermediary computational layer that processes wind direction data and detection distance parameters to generate a survey area boundary. This intermediary calculation acts as a mediator between the raw detection capabilities and the actual search process, enabling systematic coverage of the most probable leak locations without requiring complex real-time analysis during the search
2Productivity
If a vehicle-borne detection system is used to cover more ground, then the survey speed increases, but the ability to reliably locate the gas leak source decreases when a plume is detected
Solution Approach 1:
The system pre-calculates the survey area boundary based on wind direction and maximum detection distance before the vehicle begins its survey. This preliminary definition of the search area allows the vehicle to maintain higher speeds while systematically covering the most likely locations, as the boundary is already determined and the vehicle can focus its survey within this pre-defined area rather than searching indefinitely
Solution Approach 2:
The patent transitions from two-dimensional random scanning to a one-dimensional systematic approach along the wind direction. By aligning the survey area boundary with the wind direction (the dominant dimension of gas plume transport), the system creates a focused search corridor that maintains location precision while allowing the vehicle to move efficiently through the survey area at higher speeds
3Reliability
If the survey area is defined based on maximum detection distance, then the search focus is improved, but the complexity of determining the survey boundary increases
Solution Approach 1:
The system changes the parameter used for survey area definition from complex real-time gas concentration analysis to a simplified maximum detection distance parameter based on wind direction. By using this parameter change, the survey area boundary becomes easier to calculate and update in real-time, reducing computational complexity while maintaining the reliability of focusing the search on the most likely leak locations
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
This approach enables efficient and reliable gas leak detection by systematically covering a defined area, accounting for wind direction, and providing a visual guide for locating potential gas leak sources, thus improving the speed and accuracy of leak identification.
Implementation Method 1
vehicle-borne gas concentration measurement device used to perform a gas leak detection survey
Implementation Method 2
the maximum detection distance value being determined according to data representative of wind direction at the one or more measurement points
Data Source
AI summary
In some embodiments, at least one processor is employed to determine a boundary of a survey area. Data representative of the locations of measurement points adjacent to or outside of the survey area are received, as well as data representative of wind direction at the measurement points. The boundary of the survey area is determined according to the data representative of wind direction and a maximum detection distance value representative of an estimated maximum distance from a potential gas leak source at which a gas leak from the potential source can be detected.