Variable Speed Route Simulation for Navigation Systems
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Solution Overview
Problem
Conventional navigation systems require a long time to complete route simulation operations for long distances, making it impractical for users to familiarize themselves with routes before embarking on a trip.
Innovation Solution
A method and apparatus for navigation systems that adjust the speed of a progression indicator based on road types, map scale, and locations along the route, allowing for variable simulation speeds to complete the route simulation within a predetermined short time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If constant speed simulation is used, then the simulation provides consistent viewing speed, but the simulation takes several hours to complete for long routes
Solution Approach 1:
The patent applies dynamics by making the simulation speed variable rather than constant. The progression indicator moves at different speeds depending on the route segment being displayed, allowing the simulation to complete quickly while still providing adequate user familiarity with the route through strategic speed variations.
Solution Approach 2:
The patent changes the speed parameter dynamically during the simulation operation. By adjusting the progression indicator speed based on route characteristics and user needs, the system reduces overall simulation time for long routes while maintaining effectiveness in providing route information.
2Productivity
If high simulation speed is used, then the simulation completes quickly, but the user cannot adequately familiarize with the route
Solution Approach 1:
The patent segments the route into different sections with different simulation speeds. Critical segments such as those with numerous turns or complex maneuvers are displayed at slower speeds to ensure user familiarity, while straighter segments proceed at higher speeds to maintain overall simulation efficiency.
Solution Approach 2:
The patent applies local quality by assigning different simulation speeds to different portions of the route based on their specific characteristics. Areas requiring more user attention (such as intersections and maneuver points) receive slower speeds, while less critical areas proceed faster, optimizing both information delivery and completion time.
3Ease of operation
If slow simulation speed is used, then the user can familiarize with the route, but the simulation takes several hours to complete
Solution Approach 1:
The system dynamically adjusts simulation speed based on route characteristics. Rather than maintaining a single slow speed throughout, the progression indicator varies its speed to match the complexity of each route segment, allowing quick completion of simple segments while providing adequate familiarization for complex segments.
Data Source
AI summary
A method for route simulation operation on a navigation system is able to complete the route simulation operation within a short period of time. The method includes the steps of: calculating a route from a starting point to a destination; determining a first route simulation speed for a preset number of first turns from the starting point; determining a second route simulation speed for a preset number of last turns before the destination; determining a third route simulation speed for a remaining part of the calculated route; and displaying a progression indicator on the calculated route to the destination on a map image on the screen of the navigation system and moving the progression indicator based on the simulation speeds determined in the above steps.