Magnetometer Network Locating Mobile Magnetic Objects
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Solution Overview
Problem
Existing methods for locating mobile magnetic objects using a network of magnetometers suffer from decreased precision as the number of objects to be located increases, while also compromising flexibility.
Innovation Solution
The method reduces the number of variables in the system of equations by identifying supplementary equations that connect certain variables to constant values, allowing dynamic adaptation based on the number of objects, thereby maintaining flexibility and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of variables in the system of equations is reduced to improve precision, then measurement precision improves, but flexibility is lost
Solution Approach 1:
The system dynamically adapts the number of variables in the equations based on the actual number of magnetic objects detected. When multiple objects are present, the system uses a reduced number of variables to improve precision, while maintaining the capability to handle different numbers of objects through dynamic reconfiguration of the mathematical model
Solution Approach 2:
The invention changes the parameters of the system of equations (specifically the number of variables) based on the detection context. By adjusting the number of variables according to the number of magnetic objects, the system optimizes measurement precision for each specific situation while preserving overall flexibility
2Quantity of substance
If the number of mobile magnetic objects to be located simultaneously increases, then the capability to locate multiple objects improves, but the precision of locating each object decreases
Solution Approach 1:
The system segments the problem by creating separate systems of equations for different numbers of magnetic objects. Each segmented system is optimized for a specific number of objects, allowing the system to handle multiple objects simultaneously while maintaining high precision for each individual object through the use of appropriately sized variable sets
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 enhances the precision and robustness of locating mobile magnetic objects, reduces estimation noise, and allows for faster location methods without requiring extensive storage of predefined equations.
Implementation Method 1
the measurement, by each of the magnetometers, of the amplitude of the magnetic field along each of the measurement axes thereof
Data Source
AI summary
A method for locating mobile objects by identifying, on the basis of the objects before a network of magnetometers, a supplementary equation. The method includes connecting, by means of a relationship of equality, a first variable from a current system of equations to a term, the term being a predefined relationship between one or more other variables from the current system of equations or a constant numerical value. The method also includes replacing, in the current system of equations, the first variable with the term to which it is equal to obtain a new system of equations in which the number of variables for which the value needs to be estimated is smaller than in the current system of equations. The method further includes using the new system of equations instead in order to estimate the position/orientation/amplitude of a magnetic moment of one of the magnetic objects.