Map Display Control Device Automatic Scrolling Priority Object

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Solution Overview

Problem

Navigation devices struggle to help users find facilities off their expected travel route, as existing map scrolling techniques fail to provide clear positional relationships and require laborious operations to switch between maps with and without expected travel routes.

Innovation Solution

A map display control device with a map information acquiring unit, display processor, operation information acquiring unit, scroll processor, and priority object setting unit, allowing for manual and automatic map scrolling to focus on a priority object of interest, enabling seamless transitions and clear positional recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the user manually scrolls the map to display areas away from the expected travel route, then the user can find facilities of interest, but the user becomes confused about the positional relationship between maps after several iterations

Engineering Contradiction:
Improveease of finding facilitiesVSAvoidpositional relationship understanding
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The system provides visual feedback by displaying the expected travel route on the map and automatically scrolling to maintain it visible. This feedback mechanism helps users understand the positional relationship between the current map view and the expected route, preventing confusion while enabling facility search.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The expected travel route acts as an intermediary reference element on the map. By maintaining this reference visible during automatic scrolling, the system preserves spatial context and helps users orient themselves relative to the route while exploring areas away from it.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of time

If the user uses the jump function to switch between maps, then the user can quickly access the current position, but the operation becomes laborious and does not provide positional relationship information

Engineering Contradiction:
Improvetime to access mapVSAvoidoperation simplicity
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The system performs automatic scrolling to bring the expected travel route into view without requiring user intervention. This self-service functionality reduces the operational burden on users while maintaining clear positional relationship information, eliminating the need for laborious manual switching operations.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the map scrolls automatically toward the priority object, then the user can easily recognize the location, but the system must determine when manual scrolling has ended

Engineering Contradiction:
Improveease of recognizing locationVSAvoidscroll control mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system periodically checks whether manual scrolling has ended and switches between manual and automatic scrolling modes accordingly. This periodic control mechanism enables smooth transitions between user-initiated and system-initiated scrolling, maintaining ease of location recognition while managing system complexity.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10422656B2Map display control device and automatic map scrolling method
Publication Date: 2019.09.24 MITSUBISHI ELECTRIC CORP
  • US10422656B2 patent drawing
  • US10422656B2 patent drawing
  • US10422656B2 patent drawing

AI summary

A map display control device includes a display processor to cause a display to display a map, an operation information acquiring unit to acquire information on an operation performed by a user, a scroll processor to scroll the map displayed on the display, and a priority object setting unit to determine a priority object having higher priority than other objects contained in the map. The scroll processor scrolls the map in step with an operation performed by the user to scroll the map, and automatically scrolls the map toward the priority object when determining that the operation has been ended.