Mesh Navigation Display for Off-Path Terrain
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Solution Overview
Problem
In natural fields like sand dunes and mountain forests, where there are few general traffic paths, existing navigation devices face challenges in displaying suitable travel paths due to terrain changes and environmental influences, requiring labor-intensive measurement and being prone to blockages.
Innovation Solution
An information processing device that displays a virtual travel path by weighting and sorting mesh information based on the number of overlapping locus logs, using a mesh composed of blocks, where each block's color and brightness indicate the frequency of travel, allowing easy path setup and adaptation to changing environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a virtual path is displayed in natural fields with few general traffic paths, then navigation suitability for moving bodies is improved, but labor-intensive terrain measurement is required to create the virtual path
Solution Approach 1:
The patent uses GPS locus logs from multiple moving bodies as copies of actual travel paths to generate the virtual path, replacing the need for manual terrain measurement. The system collects position information over time, creates locus logs representing actual movement trajectories, and uses these copied paths directly for navigation display.
Solution Approach 2:
The system performs self-service by automatically collecting locus logs from moving bodies, processing the position information, and generating the virtual path without requiring external terrain measurement activities. The navigation device uses its own collected data and data from other devices to create the navigation path.
2Ease of operation
If a virtual path is previously set in natural fields, then navigation guidance can be provided, but the path may be blocked by terrain changes such as fallen trees or water accumulation
Solution Approach 1:
The virtual path is made dynamic by continuously updating it based on new locus logs from moving bodies. Instead of a static previously-set path, the system recalculates the virtual path using accumulated position information, allowing the path to adapt to terrain changes and avoid blockages automatically.
Solution Approach 2:
The system incorporates feedback from multiple locus logs to detect and respond to terrain changes. When new movement data indicates that a previously valid path is now blocked or changed, the system uses this feedback to update the virtual path, ensuring continued reliability.
3Measurement precision
If locus logs from multiple moving bodies are collected to represent travelable areas, then the traveling area can be accurately identified, but the data processing complexity increases
Solution Approach 1:
The data processing is segmented by dividing the collection period into multiple time intervals and generating locus logs for each interval. This segmentation allows the system to process data in manageable chunks, reducing overall complexity while maintaining accuracy through cumulative results.
Solution Approach 2:
The patent merges multiple locus logs from different moving bodies and different time periods to create a comprehensive representation of travelable areas. By combining these data sources and calculating their intersections, the system achieves high accuracy in identifying common travelable regions.
Data Source
AI summary
An information processing device includes a display configured to display a mesh of mesh information based on longitude and latitude. A mesh is composed of a plurality of blocks. The mesh information includes area information about a traveling area where a moving body can travel. The area information is the additional information added to each of the plurality of blocks. The additional information is the display information that is weighted and sorted, based on the number of overlapping points of the plurality of locus logs.