Automated Wall Area Estimation Using Roof Measurements
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Solution Overview
Problem
Current methods for estimating building wall area are costly and inefficient, often requiring manual measurements or outdated blueprints, which can be unavailable or inaccurate.
Innovation Solution
A wall area estimation system that uses roof measurements and a reference distance to generate a digital three-dimensional model of a building, allowing for automated calculation of wall area measurements, even with limited initial information, such as aerial photographs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement methods are used to obtain accurate wall area measurements, then measurement precision is improved, but productivity deteriorates and loss of time increases
Solution Approach 1:
The patent creates a digital three-dimensional model (copy) of the building based on roof measurements and aerial photographs. This digital model replicates the building's geometry, allowing wall area calculations to be performed on the model rather than requiring physical measurement of the actual building, thereby maintaining accuracy while improving efficiency
Solution Approach 2:
The patent replaces manual mechanical measurement processes with an automated computational system. The system uses software to process roof measurements and aerial photographs, automatically generating the three-dimensional model and calculating wall areas, substituting human labor with automated image processing and computational algorithms
2Measurement precision
If manual measurement visits are conducted to obtain building dimensions, then measurement precision is improved, but loss of time increases and productivity deteriorates
Solution Approach 1:
The patent uses aerial photographs and roof measurements as preliminary data that already capture the building's geometry. By processing these pre-existing records through automated algorithms to generate the three-dimensional model, the system eliminates the need for time-consuming site visits while maintaining measurement accuracy
Solution Approach 2:
The system creates a digital replica of the building from aerial photographs and roof measurements, allowing all subsequent measurements and calculations to be performed on this digital copy without requiring physical access to the building, thereby eliminating time loss from site visits
3Productivity
If original building plans or blueprints are used for wall area estimation, then productivity is improved, but reliability deteriorates due to unavailability or outdated information
Solution Approach 1:
The system generates current building measurements automatically from the building's own visual data (aerial photographs and roof measurements) rather than relying on external documents. The building essentially provides its own measurement data through image analysis, eliminating dependency on potentially outdated or unavailable blueprints while ensuring data accuracy
Solution Approach 2:
The patent replaces the manual process of locating, retrieving, and interpreting physical blueprints with an automated digital image processing system that directly analyzes aerial photographs and roof measurements to generate current wall area calculations, eliminating reliability issues associated with outdated documentation
4Measurement precision
If comprehensive building measurements are taken manually to ensure accuracy, then measurement precision is improved, but device complexity increases and productivity deteriorates
Solution Approach 1:
The patent extracts only the essential measurements needed for wall area calculation from the building - specifically roof measurements and aerial photographs. By focusing on these key data elements and using automated processing, the system achieves accurate wall area measurements without requiring comprehensive manual measurement of all building features, thereby reducing system complexity
Solution Approach 2:
The three-dimensional model generation system serves multiple functions: it creates a digital representation of the building, calculates wall areas, and can potentially be used for other building analysis tasks. This multi-functional approach eliminates the need for separate specialized measurement systems, reducing overall device complexity while maintaining measurement precision
Data Source
AI summary
A wall area estimation system generates an estimated wall area measurement of a building based on the received roof measurements (e.g., those generated by, received from or found in a three dimensional model of the roof) and a reference distance. The reference distance is a measurement indicative of a distance between a reference point on the roof and a ground surface. This reference distance may be used to determine how for down to extend the walls of the building (e.g., to a ground level) when building a three dimensional digital model of the building to aid in generating wall area measurements. The resulting wall measurements, roof measurements, measurements of areas missing from the wall used to generate a wall estimate report, or a combined roof and wall estimate report including various different identifiers indicating the different features and measurements based on the three dimensional model.