Navigation Junction Node Simplification for Route Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Navigation systems lack a connection simplification mechanism, leading to decreased user benefit and increased complexity, particularly in managing junction nodes and turn restrictions, which affects navigation efficiency and accuracy.
Innovation Solution
The system generates a junction node with a junction decision point, identifies internal and external segments, eliminates the junction decision point to merge these segments, updates the junction node based on turn restrictions, and generates a preferred path for display, using a control unit and communication interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the navigation system processes all junction decision points and segments, then navigation completeness is maintained, but computation time and processing complexity increase
Solution Approach 1:
The patent extracts and eliminates unnecessary junction decision points from the navigation graph by identifying and removing redundant nodes that do not provide meaningful navigation decisions. This reduces the computational burden while maintaining essential navigation functionality.
Solution Approach 2:
The patent merges internal and external segments at junction decision points to create simplified connection representations. By combining these segments into unified paths, the system reduces the number of separate decision points while preserving navigation accuracy.
2Productivity
If the navigation system eliminates junction decision points to simplify connections, then computation efficiency improves, but navigation accuracy may be compromised
Solution Approach 1:
The patent performs preliminary processing of junction nodes by pre-identifying and pre-eliminating redundant decision points before route calculation. This advance simplification ensures that subsequent navigation computations operate on an optimized graph structure that maintains accuracy while improving efficiency.
Solution Approach 2:
The patent incorporates feedback mechanisms to validate the simplified navigation paths against turn restrictions and navigation constraints. By checking eliminated paths against these constraints, the system ensures that accuracy is maintained while using simplified junction representations.
3Reliability
If the navigation system processes turn restrictions at each junction, then route validity is ensured, but processing time increases
Solution Approach 1:
The patent performs preliminary validation of turn restrictions during the junction node simplification process rather than during final route calculation. By pre-processing and eliminating paths that violate turn restrictions, the system reduces the time needed for subsequent route determination while maintaining reliability.
Data Source
AI summary
A method of operation of a navigation system includes: generating a junction node having a junction decision point; identifying an internal segment within the junction node, the internal segment connected to the junction decision point; identifying an external segment outside of the junction node, the external segment connected to the internal segment at the junction decision point; generating a traffic path through the junction node based on eliminating the junction decision point for merging the internal segment and the external segment; updating the junction node based on eliminating the traffic path in violation of a turn restriction; and generating a preferred path with a control unit through the junction node updated for displaying on a device.