Multidimensional Magnetic Sensor Data Association via Local Spatial Signatures
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Solution Overview
Problem
Existing systems for multidimensional magnetic field sensors often experience errors in data association due to shared physical interfaces, leading to incorrect sensor data transfer and identification issues, particularly in motor vehicles and machines.
Innovation Solution
The apparatus and method involve arranging multiple multidimensional magnetic field sensors with unique relative positions and polarities of magnetic field sources and sensors, allowing for distinct identification through sensor signal components, especially the z-component, and transmitting all detectable spatial components to a sensor signal detection unit via a data bus, ensuring accurate data association without redundant information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple multidimensional magnetic field sensors are connected via a common physical interface (data bus), then device complexity is reduced and ease of operation is improved, but data association errors occur and reliability deteriorates
Solution Approach 1:
Each sensor arrangement is assigned a unique local characteristic through the distinctive spatial component of its sensor signal, which corresponds to a predefined spatial direction. This local quality (unique spatial signature) allows the control unit to reliably identify and associate data with the correct sensor, even when multiple sensors share a common data bus, thereby maintaining both ease of operation and reliability
2Device complexity
If sensor data is transmitted without additional identification information, then device complexity is reduced and data transmission is simplified, but measurement precision deteriorates due to incorrect sensor association
Solution Approach 1:
The sensor arrangements self-identify through the distinctive spatial component inherent in their sensor signals. Each sensor arrangement's unique spatial configuration automatically provides identification information without requiring additional identification mechanisms, thus maintaining low device complexity while ensuring high measurement precision through correct sensor association
3Measurement precision
If the z-component of the sensor signal is used for identification, then measurement precision is improved through accurate sensor arrangement identification, but device complexity increases due to component-specific processing requirements
Solution Approach 1:
The identification function is extracted from the general sensor data processing and specifically assigned to the z-component of the sensor signal. By taking out this specific component for identification purposes, the control unit can efficiently distinguish between sensor arrangements without requiring complex processing of all signal components, thus achieving high measurement precision with minimal additional device complexity
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 immediate detection and correction of mixed-up data sets, eliminating the need for additional safety mechanisms and ensuring reliable data transfer across sensor arrangements, enhancing the accuracy and reliability of position detection in complex systems.
Implementation Method 1
a first magnetic field source and a first multidimensional magnetic field sensor... The first magnetic field source and the first magnetic field sensor are arranged relative to one another in a first manner characteristic for the first sensor arrangement
Data Source
AI summary
Embodiments relate to apparatus (200) and methods for distinguishing data of a plurality of multidimensional magnetic field sensors (120). A first sensor arrangement (100-1) comprises a first magnetic field source (110-1) and a first multidimensional magnetic field sensor (120-1), wherein the first magnetic field source and the first magnetic field sensor are arranged relative to one another in a first manner characteristic for the first sensor arrangement. At least one second sensor arrangement (100-2) comprises a second magnetic field source (110-2) and a second multidimensional magnetic field sensor (120-2), wherein the second magnetic field source and the second magnetic field sensor are arranged relative to one another in a second manner characteristic for the second sensor arrangement.