AR Navigation Using SLAM-GPS Coordinate Conversion
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Solution Overview
Problem
Conventional two-dimensional map walking navigation is costly and difficult for users to follow, and augmented reality navigation using GPS signals is easily interfered with in areas like tunnels and high buildings, leading to incomplete navigation.
Innovation Solution
A method that performs augmented reality navigation on a current route based on real-time GPS information, acquires SLAM coordinates, and converts them into calculated geographic coordinates when the GPS information meets a preset positioning difference condition, allowing for continued augmented reality navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If augmented reality navigation uses GPS signals, then navigation can be provided in open areas, but GPS signals are easily interfered with in places with tunnels and high buildings
Solution Approach 1:
The patent introduces SLAM technology as an intermediary positioning method to bridge the gap when GPS signals are unavailable. The system switches from GPS-based positioning to SLAM-based positioning in tunnel or high-building environments, ensuring continuous navigation functionality without direct GPS dependency.
Solution Approach 2:
The patent changes the positioning parameter source from GPS coordinates to SLAM coordinates when GPS signals are interfered with. This parameter substitution allows the navigation system to maintain functionality by using alternative coordinate systems that do not rely on satellite signals.
2Reliability
If conventional two-dimensional map walking navigation is used, then navigation can be provided without GPS signals, but map recognition cost is high and users have difficulty finding the ways
Solution Approach 1:
The patent transitions from two-dimensional map navigation to three-dimensional augmented reality navigation. By overlaying virtual navigation elements on the real-world camera view, the system provides intuitive directional guidance without requiring complex map recognition, making navigation accessible to all users regardless of their ability to interpret 2D maps.
3Ease of operation
If augmented reality navigation is provided using GPS information, then navigation can be intuitive with virtual identifications, but GPS signals may be interrupted resulting in navigation completely unavailable
Solution Approach 1:
The patent prepares for GPS signal interruption by having SLAM positioning ready as a backup. The system monitors GPS signal quality and proactively switches to SLAM positioning before complete signal loss occurs, ensuring continuous navigation functionality and preventing navigation unavailability.
Data Source
AI summary
The present disclosure provides a method and apparatus for a route navigation, which relate to the technical fields of computer vision, image processing, augmented reality and the like. An implementation solution is: performing an augmented reality navigation on a current route based on real-time acquired GPS information of a terminal; acquiring SLAM (simultaneous localization and mapping) coordinates of the terminal; converting, in response to determining that the GPS information meets a preset positioning difference condition, the SLAM coordinates into calculated geographic coordinates; and performing an augmented reality navigation on the current route based on the calculated geographic coordinates.