Dynamic Navigation Instruction Generation for Complex Intersections
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Solution Overview
Problem
Existing digital map applications generate static navigation instructions that can be inaccurate or repetitive, especially at complex intersections, failing to adapt to real-time conditions such as traffic or lane changes.
Innovation Solution
A computer-implemented method that uses a mapping server to generate and modify navigation instructions based on dynamic intersection data, including normalization of intersection shapes and lane recommendations, to provide more accurate and flexible route guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static navigation instructions are used, then the system is simple and fast, but the accuracy and adaptability of navigation instructions deteriorate
Solution Approach 1:
The patent transforms static navigation instructions into dynamic ones by generating instructions based on real-time route calculations and intersection data. The system continuously updates navigation instructions according to current traffic conditions, road closures, and user location, making the instructions adaptive rather than fixed, thereby improving accuracy without requiring complete system redesign
Solution Approach 2:
The system pre-processes and stores intersection data, road network information, and navigation guidance data in advance. This preliminary data preparation enables the system to quickly generate accurate navigation instructions in real-time without performing complex calculations during the actual navigation, thus improving instruction accuracy while maintaining system responsiveness
2Adaptability or versatility
If static navigation instructions are used, then processing time is short, but the adaptability to real-time conditions deteriorates
Solution Approach 1:
The system pre-calculates and stores navigation guidance data for various intersections and road segments in advance. This preliminary data includes turn instructions, lane information, and navigation rules that can be quickly retrieved and applied to real-time route calculations, enabling the system to adapt to current conditions without performing time-consuming computations during active navigation
Solution Approach 2:
The system incorporates real-time feedback from GPS location tracking, traffic condition sensors, and user behavior patterns to dynamically adjust navigation instructions. This feedback mechanism allows the system to adapt to changing conditions such as traffic congestion, road closures, or user preferences while maintaining efficient processing by using pre-established adjustment rules rather than re-calculating entire routes
3Measurement precision
If static navigation instructions are used, then the system is simple to implement, but the clarity and precision at complex intersections deteriorates
Solution Approach 1:
The patent segments the complex navigation problem into discrete, manageable components by analyzing individual intersections and road segments separately. The system processes intersection data independently, generating specific turn instructions and lane guidance for each intersection type, which simplifies the overall processing complexity while improving the precision of instructions at complex intersections through targeted analysis
Solution Approach 2:
The system applies different navigation instruction strategies tailored to the specific characteristics of each intersection type. Rather than using a one-size-fits-all approach, the system adapts its instruction generation based on local intersection geometry, traffic patterns, and road configuration, thereby improving instruction precision at complex intersections while keeping the overall system implementation relatively simple through modular processing
Data Source
AI summary
In order to determine navigation instructions, a mapping server can use digital map data, which can include a set of intersections connected by road segments. In some cases, the mapping server generates navigation guidance data for one or more intersections of digital map data. Responsive to a request for navigation instructions from a client device, the mapping server can generate a navigation route between an origin and destination location, and a corresponding set of navigation instructions can be generated based on the navigation route. In some implementations, the generated navigation instructions are then modified to clarify or otherwise improve the quality of the navigation instructions. Finally, the finalized navigation instructions can be sent to a client device for display to the requesting user.