3D Arrival Screen for Navigation Systems

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Solution Overview

Problem

Navigation systems face challenges in accurately identifying the destination, especially in unfamiliar areas with many buildings or structures, as the current two-dimensional arrival screens do not provide clear visual cues for the user's location relative to the destination.

Innovation Solution

A three-dimensional arrival screen is displayed, incorporating building footprint data and road segment information to show the positional relationship between the destination, neighboring addresses, and the user's current position, including street address numbers and position marks, allowing for accurate location identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a two-dimensional arrival screen is used to display destination information, then the device complexity is low, but the user cannot accurately identify the destination location among many buildings

Engineering Contradiction:
Improvedestination location identification accuracyVSAvoiddisplay system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent transitions from a two-dimensional map display to a three-dimensional bird's-eye view display showing building footprints and structures. This dimensional change allows users to visually correlate the display with actual surroundings, accurately identifying destination locations among many buildings by providing spatial context and visual recognition cues that are not available in traditional 2D maps.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If detailed building footprint data and road segment information are incorporated into the display, then the user can accurately identify the destination, but the data processing complexity increases

Engineering Contradiction:
Improvedestination position accuracyVSAvoiddata processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system pre-processes and stores building footprint data, road segment information, and address position data in advance. When the vehicle approaches the destination, the system retrieves and displays this pre-organized data in a three-dimensional view, eliminating the need for complex real-time calculations and enabling accurate destination identification without overwhelming processing demands during navigation.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If a three-dimensional arrival screen with building footprints is displayed, then the user can easily correlate the display with actual surroundings, but the rendering time and computational resources increase

Engineering Contradiction:
Improvedestination recognition easeVSAvoidscreen rendering time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system prepares three-dimensional building footprint data, road segment geometries, and address position information in advance and stores them in an optimized format. When the vehicle enters the destination arrival range, the system quickly retrieves and renders this pre-processed data, minimizing rendering time while providing users with an intuitive three-dimensional view that facilitates easy destination recognition and correlation with actual surroundings.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS7590487B2Method and apparatus of displaying three-dimensional arrival screen for navigation system
Publication Date: 2009.09.15 ALPINE ELECTRONICS INC
  • US7590487B2 patent drawing
  • US7590487B2 patent drawing
  • US7590487B2 patent drawing

AI summary

A method and apparatus of displaying a three-dimensional arrival screen allows the user to more easily and accurately identify the actual location of the destination by displaying the three-dimensional arrival screen which shows the relationship among the location of the destination, the locations of the neighboring addresses, and the current vehicle position. The method includes the steps of receiving a street address number of a destination, retrieving data indicating a road segment which includes the specified street address number, estimating positions of the destination and neighboring addresses based on street numbers of the destination, neighboring addresses, and position data of the road segment, and displaying a three-dimensional arrival screen when the user comes within the predetermined distance range from the destination.