Navigation Device Alternative Route Selection at Junctions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Navigation devices often fail to provide alternative routes that align with user preferences, leading to low adoption of suggested alternatives.
Innovation Solution
A navigation device and method that allows users to select alternative routes by presenting options that diverge at different junctions from the original route, with comparison information on distance, time, and cost, enabling users to choose routes that better suit their preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the navigation device provides alternative routes using the same junction as the selected route, then the route guidance is simple and clear, but the user choice and route diversity are limited
Solution Approach 1:
The patent segments the route selection process by identifying multiple junctions along the selected route and creating alternative routes that diverge at different junction points. This segmentation allows the system to provide diverse route options without calculating completely alternative paths from the origin, thus enhancing user choice while maintaining manageable computational complexity.
Solution Approach 2:
The system performs preliminary analysis of the selected route to identify all junctions along the path before presenting alternatives to the user. By pre-calculating potential divergence points and preparing alternative route options in advance, the system enables quick presentation of multiple choices without requiring complex real-time calculations when the user requests alternatives.
2Adaptability or versatility
If the navigation device displays multiple alternative routes with different junctions, then the user choice expands, but the information processing and display complexity increases
Solution Approach 1:
The patent applies local quality by providing detailed alternative route information specifically at junction points where users can choose to diverge from the main route. Rather than overwhelming the user with complete alternative route details throughout, the system focuses information presentation at critical decision points (junctions), making the interface easier to navigate while still providing comprehensive alternative options.
Solution Approach 2:
The alternative routes are segmented and presented based on divergence points along the main route. Each alternative route is associated with a specific junction where the user can choose to take it, allowing the interface to display alternatives in a structured, manageable way rather than presenting all alternatives simultaneously, thus reducing interface complexity.
3Reliability
If the navigation device calculates alternative routes from the origin, then the route alternatives are comprehensive, but the calculation time and processing power required increases
Solution Approach 1:
The system performs preliminary identification of junctions along the selected route before calculating alternatives. By pre-processing the main route to extract all potential divergence points and their associated alternatives, the system prepares route data in advance, reducing the time required to present alternatives when the user requests them, while still maintaining comprehensive route options.
Solution Approach 2:
The patent extracts alternative route information from the main route by identifying and separating alternative paths at each junction point along the selected route. This extraction approach allows the system to provide comprehensive alternative options without recalculating entire routes from the origin, significantly reducing calculation time while maintaining the quality and completeness of alternative route suggestions.
Data Source
AI summary
A navigation device according to an embodiment may include: a user interface for receiving an input from a user and displaying a route; and a control unit controlling the user interface to display the route to a destination input by the user; when an intersection on the route to the destination is selected by the user, determining at least one alternative route that passes through an intersection other than the selected intersection among a plurality of intersections of a road being traveled by a vehicle; and controlling the user interface to display the at least one alternative route. The navigation device suggests at least one alternative route that passes through an intersection other than an intersection selected by a user input, and thus has the effect of expanding the range of routes available for selection by a user.