Parametric Formula for Vehicle Positioning and Orientation
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Solution Overview
Problem
Current vehicle positioning methods in the Internet of Vehicles, such as OTDOA-based and A-GNSS-based positioning, suffer from low precision and unclear vehicle status, failing to meet the requirements of the Internet of Vehicles.
Innovation Solution
A method and device that receive measurement information between a node to be positioned and reference nodes, using a preset parametric formula to obtain positioning information including position, clock deviation, and orientation angle information, improving precision and clarity of vehicle status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If OTDOA-based positioning or A-GNSS-based positioning is used, then positioning can be implemented, but positioning precision is low and vehicle status information is unclear
Solution Approach 1:
The positioning method segments the measurement information into distinct components: pseudorange measurements for position determination, and orientation angle measurements for vehicle status determination. By separating these measurement types and processing them through different aspects of the parametric formula, the system simultaneously achieves precise positioning and clear vehicle status information without mixing the two functions.
Solution Approach 2:
The patent introduces orientation angle measurements as an additional dimensional parameter beyond traditional pseudorange-based positioning. This adds a new measurement dimension that provides vehicle status information (orientation, attitude) while the parametric formula integrates this new dimension with position parameters, thereby enriching the information output without compromising positioning precision.
2Reliability
If traditional positioning methods are used, then the positioning process can be completed, but the requirements of the Internet of Vehicles are not met due to low precision and unclear vehicle status
Solution Approach 1:
The parametric formula serves multiple functions simultaneously: it processes both pseudorange and orientation angle measurements, determines position parameters, clock deviation parameters, and orientation angle parameters in a unified framework. This multi-functional approach ensures that the positioning system meets the comprehensive requirements of the Internet of Vehicles, providing both high-precision positioning and detailed vehicle status information through a single integrated method.
3Loss of information
If only pseudorange measurements are used, then positioning can be achieved, but vehicle status information remains unclear
Solution Approach 1:
The patent merges pseudorange measurements and orientation angle measurements into a unified parametric formula processing framework. By combining these different measurement types and jointly solving for position parameters, clock deviation parameters, and orientation angle parameters, the system recovers complete vehicle status information without requiring separate processing systems, thus avoiding excessive complexity while achieving comprehensive information recovery.
Data Source
AI summary
A method for positioning a communication device includes: receiving measurement information between a node to be positioned and a set of reference nodes of at least one type, the measurement information including an initial pseudorange and initial orientation angle measurement information between the node to be positioned and a reference node, and the set of reference nodes including at least one reference node; and substituting the measurement information into a preset parametric formula to obtain positioning information of the node to be positioned, the parametric formula being used for indicating a possibility that the positioning information is a value of a preset variable, and the positioning information including position information, clock deviation information and orientation angle information of the node to be positioned.