Path Selection Assistance Device for Reliable Navigation
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Solution Overview
Problem
Conventional navigation systems fail to provide users with reliable path selection options, especially when moving slowly, as they often present numerous path options, making it difficult to choose the correct route and ensuring reaching the destination, particularly when the destination is distant.
Innovation Solution
A path selection assistance device that acquires and displays position information, extracts and updates block information between the user's current position and the destination, using straight line generation and intersecting block extraction to visually represent selectable paths, allowing users to reliably reach their destination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional navigation systems display multiple path options, then users have more freedom to choose, but it becomes difficult to select the correct route and ensure reaching the destination
Solution Approach 1:
The patent divides the area between current position and destination into multiple blocks (first block, second block, third block, etc.) arranged in sequence. Each block represents a segment of the path, and the system displays multiple candidate blocks at each segment while maintaining reliability by showing the sequential structure. This segmentation allows users to see both options and the overall path structure simultaneously.
Solution Approach 2:
The patent introduces a spatial dimension to path display by arranging blocks in sequential order from current position to destination. Instead of displaying all path options in a flat list, the system uses the spatial arrangement of blocks to represent the temporal sequence of path segments, adding a dimensional aspect to the information presentation that helps users understand both options and progression toward the destination.
2Loss of information
If the system displays all path options in detail, then users can make informed decisions, but the device complexity and information processing increase
Solution Approach 1:
The patent segments path information into discrete blocks, where each block contains simplified information about a specific path segment. Instead of processing and displaying all possible path details simultaneously, the system divides information into manageable units (blocks) that can be processed individually and displayed in sequence, reducing overall complexity while maintaining completeness.
Solution Approach 2:
The patent applies local quality by providing detailed information only where needed - each block displays path information specific to that segment rather than repeating all path information throughout. The display adapts the level of detail to the local context, showing candidate blocks and their characteristics only at relevant decision points along the path.
Data Source
AI summary
Provided are a path selection assistance device, a path selection assistance method, and a computer program, for displaying, in a recognizable manner, paths that a user can select from a current position to a destination to enable the user to select a path, by which the user can reliably reach the destination, according to the user's values. Information indicating the paths that the user can select is displayed. Position information on the current position of the user and the current position(s) of one or more targets is acquired and position information on a block which is a closed region surrounded by paths that the user can travel is acquired. Blocks existing between the current position of the user and the current position(s) of one or more targets are extracted and the display mode of the blocks thus extracted is updated to display them.