Magnetometer-Based Pointing Control for Passive User-Borne Devices
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Solution Overview
Problem
Current applications fail to provide accurate and reliable control of electrically and/or electronically passive user-borne devices with respect to multiple output devices, leading to inaccurate visual reproduction of their location on output devices.
Innovation Solution
A computer-implemented method and system that utilize magnetic field measurements from a plurality of magnetometers to determine the location of a user-borne device relative to output devices, enabling accurate control and representation of the device on one or more output devices, including electronically passive devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If magnetic field measurements are used to determine user-borne device location, then the device can be tracked without power source or processing capabilities, but the visual reproduction accuracy on output devices becomes inaccurate and unreliable
Solution Approach 1:
The patent introduces an intermediary coordinate transformation system that converts magnetic field measurements into accurate visual representations on output devices. The system uses magnetometer data to determine device location, then applies coordinate transformations and calibration to map this information accurately onto the output device display, resolving the inaccuracy issue while maintaining passive device compatibility
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the relationship between magnetic field measurements and actual device position, using calibration data to adjust and refine the location reproduction. This feedback loop enables the system to compensate for inaccuracies and maintain precise visual representation on output devices
2Adaptability or versatility
If multiple output devices are supported, then the system becomes more versatile, but the complexity of controlling and locating devices across multiple spaces increases
Solution Approach 1:
The patent implements a universal location determination system that can operate across multiple output devices using the same magnetometer-based approach. The system uses a unified coordinate transformation framework that works whether there is one or multiple output devices, eliminating the need for separate control mechanisms for each device and managing complexity through standardization
Solution Approach 2:
The system segments the multi-output device environment into distinct spatial zones or spaces, each with its own calibrated coordinate system. This segmentation allows the system to manage multiple output devices independently through modular control, reducing overall system complexity by breaking down the control problem into manageable spatial segments
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
Enables reliable and accurate control of user-borne devices, allowing for precise representation and interaction with multiple output devices, even when the device lacks a power source or processing capabilities.
Implementation Method 1
measuring a magnetic field associated with a magnetic object arranged in or coupled to the user-borne device with a plurality of magnetometers
Data Source
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AI summary
A computer-implemented method (600) for controlling a representation of a user-borne device (100) with respect to one or more output devices (500) comprising obtaining magnetic field measurements (610) associated with at least one magnetic object (110) and measured with a plurality of magnetometers (300), wherein the at least one magnetic object (110) is coupled to a user-borne device (100). The method further comprises obtaining output device location data (620) indicative of an output device location of one or more output devices (500) relative to the plurality of magnetometers (300). In addition, the method comprises determining a user-borne device location (630) based on the collected magnetic field measurements and determining a pointing location (640) of the user-borne device (100) relative to the one or more output devices (500) based on the output device location data and the user-borne device location. Furthermore, the method comprises determining (650) that the user-borne device (100) is interacting on one output device of the one or more output devices (500) based on the determined pointing location.