Vehicle Navigation Overlaying Camera Images with Directional Arrows

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Solution Overview

Problem

Traditional GPS navigation systems struggle to provide clear and understandable guidance to drivers due to the complexity of maps and the potential mismatch between stored map data and real-time road conditions, leading to confusion and inaccuracies.

Innovation Solution

A vehicle navigation system that uses a digital camera to capture the real scene in front of the vehicle and overlays navigation direction indicators, such as arrows, onto the live image, ensuring that the driver sees the same view on the screen as they do in real life, with the system capable of recognizing lanes, road signs, and updating the database in real-time to adapt to changing conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If traditional GPS navigation systems use electronic maps with arrows and icons to indicate direction, then navigation information can be provided, but the driver experiences confusion due to the complexity of interpreting maps and transforming them mentally to actual road situations

Engineering Contradiction:
Improvenavigation information clarityVSAvoiddriver understanding
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The system captures a real-time image of the actual road scene using a camera mounted on the vehicle and overlays navigation instructions (arrows, icons, text) directly onto this live view. This creates a composite image that combines actual visual context with directional guidance, eliminating the need for drivers to mentally transform abstract map representations into real-world orientations.

Inventive Principle:
Principle #26Copying

2Reliability

If navigation systems use stored map data to provide route guidance, then navigation functionality is available, but the information becomes outdated and substantially unreadable when road conditions change due to construction or other circumstances

Engineering Contradiction:
Improvenavigation accuracyVSAvoidreal-time road condition adaptation
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system continuously captures real-time images of the road environment and compares visual features (road markings, signs, landmarks) with expected features from the navigation database. When discrepancies are detected indicating road changes, the system can update the navigation database with current conditions, ensuring ongoing accuracy and adaptability to construction or environmental changes.

Inventive Principle:
Principle #23Feedback

3Loss of information

If navigation systems provide detailed map information to ensure complete route guidance, then comprehensive navigation is achieved, but the driver becomes confused due to the complexity of pictorial maps

Engineering Contradiction:
Improvenavigation information completenessVSAvoiddisplay complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system merges the real-time camera view with navigation overlay elements (arrows, icons, text instructions) into a single composite display. This integration allows comprehensive navigation information to be presented in the context of the actual road scene, maintaining information completeness while eliminating the complexity of separate map interpretations.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution provides a more natural and understandable navigation experience by aligning digital guidance with real-time road conditions, reducing driver confusion and ensuring accurate route information even when road changes occur.

Implementation Method 1

a camera (4) installed on the vehicle to provide on said display (6) an instant and live picture of the landscape view currently seen by the vehicle driver

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentEP2241859B1Improved vehicle navigation system
Publication Date: 2015.04.15 STMICROLECTRONICS GMBH
  • EP2241859B1 patent drawingFigure 1
  • EP2241859B1 patent drawingFigure 2A
  • EP2241859B1 patent drawingFigure 2B

AI summary

A vehicle navigation system (1) is described, comprising antenna means (3), preferably comprising a GPS antenna, output means for notifying guide advices (24) to the vehicle driver and comprising a display (6), memory means (5) encompassing a navigation database (16) with electronic maps stored within, and an electronic controller (2). The system (1) is capable to detect the global position of the vehicle on the basis of the electromagnetic waves received by the antenna means (3), associate the global position to the exact road position of the vehicle by comparison with the electronic maps (16) and notify pictorial guide advices (24) to the vehicle driver according to the road position by means of the display (6). The system is characterized in comprising a digital camera (4) installed on the vehicle and able to record digital pictures (25) from outsides and to provide the digital pictures (25) to the electronic controller (2); the pictures (25) are displayed by means of the display (6); preferably, pictorial guide advices (24), among which directional arrows (24) are encompassed, are overprinted to the pictures (25) displayed.