Position Measuring System Reference Station Selection
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Solution Overview
Problem
Existing position measuring systems using artificial satellites face challenges in accurately determining position information when the communication environment rapidly changes, leading to suboptimal reference station selection and reduced positional accuracy.
Innovation Solution
A position measuring system that selects an optimal reference station based on predetermined determination conditions, including communication, distance, and valid period criteria, to generate and output connection destination information for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a specified reference station is set based on a distance to which a hysteresis value is added, then the device can maintain stable operation, but it cannot adapt to rapidly changing communication environments and fails to select optimal reference stations
Solution Approach 1:
The system dynamically adjusts the reference station selection criteria based on current communication conditions. When communication environment changes are detected, the system recalculates optimal reference stations without applying hysteresis, enabling rapid adaptation to new conditions while maintaining stability during normal operation.
Solution Approach 2:
The system changes the selection parameters for reference stations based on communication environment conditions. Under stable conditions, it uses distance-based selection with hysteresis; under rapidly changing conditions, it switches to real-time performance-based selection, thereby adapting to different operational scenarios.
2Device complexity
If the system uses a fixed reference station selection method, then the device structure remains simple, but position information accuracy decreases when communication conditions change
Solution Approach 1:
The system implements feedback mechanisms that monitor communication environment changes and automatically adjust reference station selection strategies. When position accuracy degradation is detected or communication conditions change, the system triggers re-evaluation and selection of new reference stations, thereby maintaining high accuracy without requiring continuously complex mechanisms.
Solution Approach 2:
The reference station selection system serves multiple functions: it operates in both stable and rapidly changing communication environments, supports both distance-based and performance-based selection methods, and can adapt to different GPS satellite constellations and communication protocols, thereby reducing the need for specialized mechanisms for each scenario.
Data Source
AI summary
A position measuring system includes: a connection destination candidate selecting unit which selects a connection destination candidate for each of a plurality of route coordinates on a route included in route information, on the basis of the distance between each of the plurality of route coordinates and reference stations included in a reference station list; and a connection destination information generating unit which determines a connection destination for which to acquire the correction information, on the basis of prescribed determining criteria, from among the connection destination candidates selected by the connection destination candidate selecting means, and generates and outputs connection destination information relating to the determined connection destination.