Linearization Curve Calculation for Container Fill Level
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Solution Overview
Problem
Existing methods for determining the fill level in containers are inaccurate due to their inability to consider irregularities and built-in components, relying on manual measurements and linearization tables that fail to provide a precise correlation between filling height and fill level.
Innovation Solution
A method using a mobile end device equipped with an optical camera, depth sensor, and motion detector to acquire three-dimensional data, establishing a three-dimensional model of the container, and calculating a linearization curve that accounts for container geometry and internal components to determine the fill level from a filling height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurements and linearization tables are used to determine fill level, then the method is simple to implement, but the measurement precision is poor because irregularities and built-in components cannot be considered
Solution Approach 1:
The patent creates a digital three-dimensional copy of the container's interior geometry using photogrammetry or laser scanning. This virtual model accurately reproduces the container's shape, irregularities, and built-in components, allowing precise fill level calculation without physical measurement devices inside the container. The digital copy enables the system to account for all geometric features that affect the fill level-filling height relationship.
Solution Approach 2:
The patent replaces traditional mechanical measurement methods (manual measurements, physical linearization tables) with an optical/electronic system. Using cameras or laser scanners to capture three-dimensional data, and computational algorithms to generate the linearization curve, substitutes the mechanical approach with a digital one that provides higher precision while maintaining ease of use.
2Reliability
If traditional linearization tables are used, then the calculation process is simple, but the reliability is poor due to inability to account for container irregularities and built-in components
Solution Approach 1:
The patent performs preliminary three-dimensional scanning and modeling of the container before actual fill level measurements are needed. The linearization curve is pre-calculated based on the captured geometry, storing the relationship between filling height and fill level in advance. This preliminary action ensures that all irregularities and built-in components are accounted for before measurements begin, improving reliability without adding complexity during actual operation.
Solution Approach 2:
The patent transforms the container's physical geometric parameters into a digital representation, capturing the three-dimensional coordinates of the container's interior surface. By changing the parameter representation from physical to digital, the system can accurately incorporate irregularities and built-in components into the linearization calculation, significantly improving reliability.
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 significantly enhances measurement accuracy by considering irregularities and built-in components, providing a more precise correlation between filling height and fill level compared to prior art methods.
Implementation Method 1
acquiring two dimensional data and a reference value of a container (10) having a symmetry with a mobile end device, having at least one optical camera (14)
Implementation Method 2
The acquisition of the three dimensional data of the container (10) occurs in accordance with one or a combination of the methods: time of flight, structured light or stereoscopy
Implementation Method 3
a mobile end device (12), having at least one optical camera (14), a depth sensor (16) and a motion detector (18)
Data Source
AI summary
Method for calculating a linearization curve for determining the fill level in a container from a filling height, said method comprising the following steps: acquiring three-dimensional data of the container with a mobile end device, having at least one optical camera, a depth sensor and a motion detector, establishing a three-dimensional model of the container, and calculating the linearization curve from the three-dimensional model for determining a fill level from a measured filling height.


