Vehicle Positioning Correction Using UI Feedback and Engine Fusion
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Solution Overview
Problem
Existing vehicle positioning systems in autonomous driving face challenges in accurately correcting position estimates, particularly at lane-level precision, which is crucial for safe and efficient navigation.
Innovation Solution
A method and system that utilizes a positioning engine aggregator in a vehicle to determine an initial position estimate and correct it using input from a user interface, integrating multiple positioning engines and user feedback to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple positioning engines are used to determine position estimates, then positioning reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple positioning engines (GPS, GLONASS, Galileo, QZSS) into a unified positioning system with a single output interface. The system aggregates position estimates from different engines and presents a consolidated result, reducing the complexity of managing multiple separate positioning systems while maintaining improved reliability through diverse positioning sources.
2Measurement precision
If user interface input is used to correct position estimates, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system implements feedback by monitoring the accuracy of position estimates and automatically requesting user confirmation when uncertainty is detected. The user interface prompts the user to verify or correct the displayed position, and the system uses this feedback to adjust and improve subsequent position estimates. This automated feedback loop improves precision without requiring constant user intervention.
Solution Approach 2:
The positioning system performs self-correction by automatically detecting when position estimates may be inaccurate and initiating correction procedures. The system manages its own accuracy improvement process by autonomously determining when user input is needed and how to incorporate corrections, reducing the operational burden on the user while maintaining high precision.
Data Source
AI summary
Disclosed are techniques for vehicle positioning. In an aspect, a positioning engine aggregator of a host vehicle determines a position estimate of the host vehicle based on one or more position fixes determined by one or more positioning engines of the host vehicle, receives input from a user interface (UI) of the host vehicle to correct the position estimate of the host vehicle, and updates the position estimate of the host vehicle based on the input from the UI.