AR Route Guidance Dynamic Indicator Switching

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Solution Overview

Problem

Existing route guidance systems using augmented reality (AR) struggle to provide effective guidance when turn points are obstructed by topography and real-world features, and they fail to adaptively display guidance information based on the user's camera orientation and distance to turn points.

Innovation Solution

A route guidance method that uses a user terminal to display point indicators and instruction indicators within an AR view, adjusting their display based on whether the turn point is within the camera's field of view and changing their form when the user approaches, ensuring continuous and adaptive guidance through the use of a combination of point and instruction indicators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If route guidance is provided using AR view with camera capture, then the user can view virtual guidance information in the real world, but the turn points may be obstructed by topography and real-world features making guidance ineffective

Engineering Contradiction:
Improveadaptability to obstructed turn pointsVSAvoidreliability of guidance information
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies dynamics by dynamically switching between point indicators and instruction indicators based on the user's real-time distance to turn points and camera orientation. When the user is far from a turn point, a point indicator is displayed; when approaching, an instruction indicator is shown. This dynamic adaptation ensures reliable guidance even when turn points are obstructed by topography or features.

Inventive Principle:
Principle #15Dynamics

2Loss of information

If guidance information is continuously displayed, then the user can always see direction, but the user may lose the next target location when approaching the current turn point

Engineering Contradiction:
Improveinformation about next target locationVSAvoidease of following route
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent applies preliminary action by displaying the instruction indicator in advance before the user reaches the current turn point. The instruction indicator shows the direction and location of the next turn point ahead of time, ensuring the user has information about the next target location before leaving the current view. This prevents loss of orientation when transitioning between turn points.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If only point indicator is displayed, then the display is simple, but the user cannot understand the movement direction to the turn point

Engineering Contradiction:
Improveclarity of movement directionVSAvoidcomplexity of guidance display
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies local quality by providing different types of guidance information in different spatial contexts. Point indicators are used when the user is far from the turn point to show location, while instruction indicators are used when approaching to show movement direction. Each indicator type has specialized local functionality appropriate to the user's distance and orientation, improving clarity without requiring all features simultaneously.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20220291006A1Method and apparatus for route guidance using augmented reality view
Publication Date: 2022.09.15 NAVER CORP
  • US20220291006A1 patent drawing
  • US20220291006A1 patent drawing
  • US20220291006A1 patent drawing

AI summary

A route guidance method includes acquiring a route from a source to a destination and providing route guidance through an augmented reality (AR) view that includes an image captured by a camera. When providing the route guidance, as a user terminal moves toward the destination based on the acquired route, a point indicator that guides to a turn point approached by the user terminal included in the route or an instruction indicator that instructs a movement to a corresponding turn point is displayed through augmentation on an image.