Dynamic GNSS Master Selection for Location Precision
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Solution Overview
Problem
The precision of Global Navigation Satellite System (GNSS) sensors in mobility devices is limited by the performance of the built-in chip and antenna installation, making it difficult to upgrade to higher performance sensors without replacing the entire module, and high-performance sensors are not cost-competitive.
Innovation Solution
A mobility system that includes a first GNSS module, an IoT communication module, and a calculation processing module to evaluate and compare the performance of multiple GNSS modules, allowing one to be set as a master module for improved location information calculation, and communicates with a user terminal to share calculated location information, using correction information from a base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-performance GNSS sensor is used, then location precision is improved, but cost increases
Solution Approach 1:
The patent merges multiple GNSS modules into a single system, combining a first GNSS module and a second GNSS module to work together. The calculation processing module coordinates both modules to generate location information, effectively merging their capabilities to achieve high precision without requiring a single expensive high-performance module.
Solution Approach 2:
The system makes the GNSS system multi-functional by enabling either the first or second GNSS module to serve as the master module depending on performance requirements. The calculation processing module can dynamically select which module to prioritize, making the system adaptable to different precision and cost requirements.
2Measurement precision
If a GNSS sensor with improved performance is developed, then location precision is improved, but the module cannot be easily replaced once installed
Solution Approach 1:
The system dynamically adjusts which GNSS module serves as the master module based on performance evaluation. The calculation processing module continuously monitors the performance of both modules and can switch the master module designation dynamically, allowing the system to adapt to different performance conditions without physical replacement.
Solution Approach 2:
The system changes the operational parameters of the GNSS modules by adjusting which module is designated as master based on performance metrics. This parameter change allows the system to optimize location precision by selecting the better-performing module without any physical modification or replacement.
3Measurement precision
If multiple GNSS modules are used and performance comparison is performed, then location precision is improved, but device complexity increases
Solution Approach 1:
The calculation processing module acts as an intermediary that manages the interaction between multiple GNSS modules. It receives data from both modules, performs performance comparison, determines which module to use as master, and generates the final location information. This intermediary simplifies the complexity by centralizing the decision-making process.
Data Source
AI summary
An embodiment mobility includes a first global navigation satellite system (GNSS) module configured to generate first location information using a first signal, an internet of things (IOT) communication module configured to receive correction information from a base station for correcting the first location information, a first calculation processing module configured to perform calculation of final location information using the first location information and the correction information, and a communication interface module configured to communicate with a user terminal that includes a second GNSS module configured to generate second location information using a second signal, wherein the first calculation processing module is configured to set the first GNSS module or the second GNSS module as a master module and to calculate the final location information using the first location information or the second location information generated by the set master module.