Vehicle Equipment Pointing Control Using Geomagnetic Direction Fusion
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Solution Overview
Problem
Existing methods for controlling vehicle equipment through terminals, such as mobile phones, often fail to accurately determine the targeted equipment due to the lack of consideration for the vehicle's direction changes.
Innovation Solution
The method employs geomagnetic field-based direction information and relative positioning to accurately determine the equipment pointed to by a terminal, using modules like UWB and geomagnetic sensors to calculate relative position and direction information, and adjust for errors in determining the equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direction information is obtained only from the terminal without considering vehicle direction, then the control system is simple, but the pointing accuracy deteriorates
Solution Approach 1:
The patent combines terminal direction information with vehicle direction information to determine relative direction information. This merging of multiple information sources resolves the contradiction by improving pointing accuracy through comprehensive data integration while maintaining reasonable system complexity through unified processing architecture.
Solution Approach 2:
The patent transitions from a single-dimension approach (terminal direction only) to a two-dimension approach by incorporating vehicle direction as an additional dimension. This dimensional expansion enables accurate relative direction calculation while the processing framework manages the increased complexity systematically.
2Measurement precision
If relative direction information is calculated by combining terminal and vehicle direction, then pointing accuracy is improved, but computational complexity increases
Solution Approach 1:
The patent performs preliminary calculations by determining relative direction information in advance based on terminal and vehicle direction data. This preliminary action resolves the contradiction by preparing accurate directional data beforehand, which improves equipment identification accuracy while the computational burden is distributed efficiently across the processing system.
3Measurement precision
If only terminal direction is used for control, then the system is easy to operate, but the control accuracy deteriorates due to vehicle direction changes
Solution Approach 1:
The system automatically performs the complex task of calculating relative direction information by combining terminal and vehicle direction data without requiring user intervention. This self-service approach resolves the contradiction by improving control accuracy through automated multi-source data integration while maintaining operation simplicity as users only need to provide natural pointing gestures.
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 accuracy of controlling and interacting with vehicle equipment by considering the vehicle's direction changes, leading to more precise control and interaction.
Implementation Method 1
obtaining direction information of a terminal and direction information of a vehicle based on a horizontal direction of a geomagnetic field
Data Source
AI summary
A method for controlling equipment of a vehicle includes obtaining direction information of a terminal and direction information of a vehicle based on a horizontal direction of a geomagnetic field, obtaining relative position information between the terminal and the vehicle, determining relative direction information between the terminal and the vehicle according to the direction information of the terminal and the direction information of the vehicle, determining equipment pointed to by the terminal according to the relative position information, the relative direction information, and position information of the equipment of the vehicle relative to the vehicle, and controlling the pointed equipment through the terminal or displaying information of the pointed equipment on the terminal.