Satellite Positioning System Selection Method
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Solution Overview
Problem
Existing satellite positioning systems face inefficiencies in selecting the appropriate system for positioning, as current methods either fail to identify available systems or result in inefficient searches, leading to suboptimal performance.
Innovation Solution
A method and device for selecting a satellite positioning system based on acquired support information, including location and collateral data, to rapidly identify and prioritize available systems for optimal positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all available satellite positioning systems are searched for in order, then the completeness of system selection is improved, but the search time and efficiency deteriorate
Solution Approach 1:
The patent applies preliminary action by acquiring support information about satellite positioning systems before actual positioning operations. This includes obtaining data about which systems are available in the current region and their operational status in advance, so that when positioning is needed, the system can quickly select from pre-evaluated options rather than searching through all possible systems each time.
Solution Approach 2:
The system performs self-service by automatically acquiring and updating support information about available satellite positioning systems based on the device's current location. The system independently determines which positioning systems are accessible without requiring manual configuration or external intervention, continuously adapting to changes in location and system availability.
2Productivity
If only pre-set satellite positioning systems are searched for, then the search efficiency is improved, but the accuracy of positioning deteriorates
Solution Approach 1:
The patent implements dynamics by making the set of searchable satellite positioning systems adaptive rather than fixed. The system dynamically adjusts which positioning systems to search for based on real-time support information acquired from the current location, such as regional availability data and system operational status. This allows the search set to be optimized for each location and time, balancing efficiency and accuracy.
3Measurement precision
If multiple satellite positioning systems are used simultaneously, then the positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the multiple satellite positioning systems into separate, independently manageable receiver modules. Each receiver is configured for a specific positioning system (e.g., GPS, GLONASS, Galileo, QZSS), allowing the system to process multiple systems simultaneously while maintaining clear separation between different signal processing chains. This modular approach reduces overall system complexity compared to a unified processing architecture.
Data Source
AI summary
A method of selecting a satellite positioning system which is used in positioning by a positioning device capable of performing positioning based on a plurality of satellite positioning systems includes acquiring given support information which is referred to in selecting a satellite positioning system, and selecting a satellite positioning system which is used in positioning from the plurality of satellite positioning systems, on the basis of the support information.