RTK Correction Reception Across Networks for Continuous Positioning
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Solution Overview
Problem
Existing RTK correction information methods rely on a single network, which can lead to degradation or unavailability of the information, resulting in reduced positioning accuracy and real-time positioning failures.
Innovation Solution
A method for receiving RTK correction information through heterogeneous networks, switching between communication and broadcast networks based on the validity and availability of RTK correction information, utilizing error rate calculations and frequency switching to ensure continuous and precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RTK correction information is received through a single network (communication or broadcast), then the system structure is simple, but the positioning reliability deteriorates due to degradation or unavailability of correction information
Solution Approach 1:
The patent divides the network reception system into separate modules: a broadcast network reception module and a communication network reception module. Each module independently receives RTK correction information through different network types, allowing the system to segment the reception tasks and switch between them based on availability, thereby improving reliability without requiring complete system redesign
Solution Approach 2:
The patent creates a multi-functional reception system where a single RTK reception device can universally receive correction information through multiple network types (broadcast and communication networks). The system is designed to perform the same RTK correction function regardless of which network type is used, enhancing reliability through network diversity while managing complexity through unified processing logic
2Measurement precision
If RTK correction information is received through broadcast networks, then the cost is reduced, but the positioning accuracy deteriorates in shadow areas where broadcast signals are unavailable
Solution Approach 1:
The patent implements dynamic network selection where the system automatically switches between broadcast network and communication network based on real-time signal availability and validity. When broadcast network signals are unavailable (shadow areas) or invalid, the system dynamically transitions to using communication networks, and vice versa, optimizing both accuracy and cost dynamically rather than using a fixed network type
Solution Approach 2:
The patent changes the operational parameters of the reception system by monitoring signal strength, error rates, and network availability metrics. Based on these parameter changes, the system adjusts which network type is actively used for receiving RTK correction information, allowing cost-effective broadcast network usage when parameters indicate good signal quality, and switching to communication networks when parameters deteriorate
3Duration of action of stationary object
If the system switches between different networks for RTK correction information, then the positioning continuity is improved, but the system complexity increases due to multiple network management requirements
Solution Approach 1:
The patent implements preliminary validation mechanisms where the system pre-checks the availability and validity of RTK correction information from both broadcast and communication networks before switching. Error rate calculation and signal validation are performed in advance to determine network suitability, allowing smooth transitions without interruption to positioning continuity while managing switching complexity through proactive assessment
Solution Approach 2:
The patent employs feedback mechanisms where the system continuously monitors the quality, error rates, and availability of RTK correction information from active and standby networks. This feedback information drives automatic switching decisions, with the system adjusting network selection based on real-time performance metrics, ensuring positioning continuity while managing complexity through intelligent, data-driven control
Data Source
AI summary
The present disclosure relates to a method for receiving RTK (Real-Time Kinematic) correction information using heterogeneous networks, especially the method enables RTK positioning in continuous and precise ways by receiving RTK correction information through another network, in the case that the validity of the RTK correction information received through a specific network is degraded or the RTK correction information cannot be received through the specific network.