GNSS Positioning Apparatus Using Inter-Device Orbit Data Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional positioning apparatuses using GNSS face accuracy issues due to difficulties in receiving and decoding navigation messages from a small number of positioning satellites, especially when the reception environment changes or the apparatus is positioned in a way that limits signal reception.
Innovation Solution
A positioning apparatus and method that involves receiving orbit information from one positioning satellite and attempting to obtain orbit information from another satellite, using communication with other positioning apparatuses to supplement received data, even if the initial satellite's data is not received or is outdated, to enhance positioning processing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the positioning apparatus relies on receiving navigation messages from a limited number of positioning satellites due to reception environment constraints, then the device complexity is reduced, but the positioning accuracy deteriorates
Solution Approach 1:
The patent combines the reception capabilities of multiple positioning apparatuses by allowing them to share navigation messages through a communication network. Each apparatus receives messages from satellites visible to it, and the system merges these received messages to create a comprehensive set for positioning calculations, effectively combining the reception efforts of multiple devices to overcome individual reception limitations.
Solution Approach 2:
The communication network acts as an intermediary that facilitates the exchange of navigation messages between positioning apparatuses. Instead of each apparatus independently attempting to receive all satellite messages, the network mediates the sharing of received messages, allowing apparatuses to access navigation data from satellites that may not be directly visible to them.
2Loss of information
If the positioning apparatus uses navigation messages from a small number of positioning satellites, then the loss of information is reduced, but the positioning accuracy deteriorates
Solution Approach 1:
The patent merges the navigation messages received by multiple positioning apparatuses to create a more complete set of satellite data. By combining the subsets of messages received by different apparatuses (each having received messages from different satellites based on their respective reception environments), the system achieves a more comprehensive navigation message set than any single apparatus could obtain alone.
3Measurement precision
If the positioning apparatus attempts to receive navigation messages from multiple positioning satellites in various sky positions, then the positioning accuracy is improved, but the use of energy increases
Solution Approach 1:
The system enables self-service among positioning apparatuses by allowing them to share their received navigation messages through the communication network. Each apparatus contributes the satellite messages it has successfully received, and other apparatuses can utilize these shared messages, eliminating the need for each device to independently attempt reception from all satellites, thereby reducing overall energy consumption while maintaining accurate positioning.
Data Source
AI summary
A positioning apparatus includes one or more processors; and one or more memories storing instructions that cause the processors to perform the following. Performing first receiving to receive one piece of orbit information showing a position of one positioning satellite and which attempts to receive another piece of orbit information showing a position of another positioning satellite. Performing first obtaining to obtain the another piece of orbit information (i) when receiving the another piece of orbit information is attempted but the another piece of orbit information is not received and the another piece of orbit information is received by the another positioning apparatus or (ii) when, the another piece of orbit information received by the another positioning apparatus is newer than that received in the first receiving. Performing positioning processing based on the one piece of received orbit information and the another piece of obtained orbit information.