Positioning Reliability Reporting Using Base Station and Error Indicators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current positioning technologies lack a clear solution for reporting the reliability and/or integrity of positioning results, which is crucial for ensuring navigation safety and accuracy.
Innovation Solution
A method and apparatus for positioning that indicate reliability and/or integrity of positioning results to a positioning request device using the number of base stations participating, positioning error, and positioning error level, allowing for timely warnings and accurate positioning integrity evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If positioning result is provided without reliability and integrity indicators, then the positioning system is simple, but navigation safety cannot be ensured
Solution Approach 1:
The positioning result information is segmented into multiple independent indicators: positioning result, reliability indicator, and integrity indicator. Each indicator is transmitted separately through dedicated message elements, allowing the system to provide comprehensive safety information without creating a complex integrated system.
2Reliability
If reliability and integrity indicators are added to positioning results, then navigation safety is enhanced, but information transmission complexity increases
Solution Approach 1:
The positioning device provides feedback information about the quality and reliability of its positioning results. By including reliability indicators (number of base stations, positioning error) and integrity indicators (positioning integrity metric) in the transmitted message, the system enables the positioning request device to assess and respond to the quality of positioning data received.
3Measurement precision
If multiple indicators are used to represent reliability and integrity, then positioning accuracy assessment is improved, but message complexity increases
Solution Approach 1:
Different aspects of positioning quality are measured using specialized indicators tailored to each aspect: the number of base stations measures geometric diversity, positioning error measures accuracy, and positioning integrity metric measures overall reliability. Each indicator is optimized for its specific measurement purpose, providing precise assessment without requiring a single complex comprehensive metric.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure provides a method and apparatus for positioning. The method includes: determining, by a positioning device, one or both of reliability and integrity of a positioning result; and transmitting, by the positioning device, one or both of the reliability and the integrity of the positioning result to a positioning request device. One or both of the reliability and the integrity of the positioning result is indicated by one or more of: a number of base stations participating in positioning, a positioning error, and a positioning error level.