Positioning Correction Requests for Lower RTK Data Consumption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RTK positioning systems face challenges in efficiently managing correction data transmission due to increased satellite constellations, leading to excessive data consumption and limited navigation range beyond radio modem capabilities, especially in agricultural applications.
Innovation Solution
Implementing a system that dynamically requests RTK corrections based on error metrics and environmental conditions, utilizing cellular modems to connect to RTK correction streams only when necessary, reducing data usage while maintaining accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RTK correction streams are continuously transmitted to improve positioning accuracy, then positioning precision is improved, but data consumption increases
Solution Approach 1:
The system dynamically adjusts the correction stream connection state based on real-time error metrics. The GPS receiver monitors positioning errors and automatically connects to or disconnects from RTK correction streams, making the system adaptive rather than static. This resolves the contradiction by making data consumption variable rather than constant, maintaining accuracy only when needed.
Solution Approach 2:
The system implements feedback through error metric monitoring to control correction stream connections. By continuously evaluating positioning accuracy and using this information to determine when correction streams are needed, the system creates a closed-loop control mechanism that optimizes data usage while maintaining positioning precision when required.
2Reliability
If RTK correction streams are used to maintain positioning accuracy, then positioning reliability is improved, but navigation range is limited by radio modem capabilities
Solution Approach 1:
The system dynamically determines connection decisions based on error metrics and environmental conditions rather than maintaining a fixed connection state. This allows the receiver to operate independently beyond radio modem range when correction streams are not needed, while still achieving high reliability when correction streams are available and beneficial.
Solution Approach 2:
The GPS receiver autonomously monitors its own positioning accuracy and independently decides when to connect to correction streams without requiring continuous external control. This self-service capability enables the system to operate reliably beyond the range of correction stream transmissions by using standalone GPS positioning when appropriate.
3Measurement precision
If multiple satellite constellations are integrated to improve positioning accuracy, then measurement precision is improved, but system complexity increases
Solution Approach 1:
The system is designed to work with multiple satellite constellations (GPS, GLONASS, Galileo, BeiDou) using a unified error metric evaluation approach. By implementing a universal correction stream connection mechanism that handles different constellations through the same logic, the system achieves multi-functionality without proportionally increasing complexity.
Data Source
AI summary
Methods, apparatus, systems and articles of manufacture are disclosed to manage correction requests in a positioning system. Example apparatus disclosed herein includes accuracy determination circuitry to determine accuracy of a current position based on location data. The example apparatus includes correction request circuitry to request location correction data from a reference location when the accuracy does not satisfy a threshold. The example apparatus includes correction determination circuitry to adjust the location data with location correction data.