Dual-Antenna GNSS Positioning for Landscape Device Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The positioning accuracy of electronic devices is compromised when they are in a landscape posture due to changes in the orientation of the satellite positioning antenna, which affects signal reception.
Innovation Solution
The electronic device selectively uses either a vertical or horizontal antenna based on signal quality to improve positioning accuracy, combining signals from both antennas when necessary to enhance precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the satellite positioning antenna is fixed in the upper left corner for portrait posture, then positioning accuracy is improved in portrait mode, but positioning accuracy deteriorates in landscape mode
Solution Approach 1:
The patent implements dynamic antenna selection based on device orientation. The system automatically switches between the first antenna (optimized for portrait mode) and the second antenna (optimized for landscape mode) according to the current device posture, making the positioning system adaptive rather than static. This resolves the contradiction by allowing the system to maintain high positioning accuracy in both portrait and landscape orientations through dynamic configuration.
2Device complexity
If the electronic device uses only one antenna for satellite signal reception, then device complexity is reduced, but positioning accuracy deteriorates in certain orientations
Solution Approach 1:
The patent designs a multi-functional antenna system where the first and second antennas can serve different positioning scenarios. The first antenna is optimized for portrait orientation while the second antenna is optimized for landscape orientation. By making the antenna system multi-functional and orientation-aware, the patent achieves high positioning accuracy across all device orientations without significantly increasing overall system complexity, as the system intelligently selects the appropriate antenna based on current usage context.
3Measurement precision
If the electronic device switches between vertical and horizontal antennas based on signal quality, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors signal quality from both the first and second antennas and automatically switches between them based on which antenna provides better signal reception. This feedback-driven antenna selection ensures optimal positioning accuracy by always using the antenna with the superior signal quality, while the complexity increase is managed through automated control algorithms that evaluate signal metrics and make switching decisions.
Data Source
AI summary
A positioning method includes receiving, by an electronic device, a first satellite signal using a first antenna, and obtaining, by the electronic device, a first signal quality of the first satellite signal. When the electronic device is in a landscape posture, receiving, by the electronic device, a second satellite signal using a second antenna; and obtaining, by the electronic device, a second signal quality of the second satellite signal. If the first signal quality is lower than the second signal quality, performing, by the electronic device, positioning using the second antenna. If the first signal quality is higher than the second signal quality, performing, by the electronic device, positioning using the first antenna.