Event Map Location Referencing Across HD Map Providers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing map generation systems lack flexibility and compatibility in expressing location information of events due to different map providers using varying location reference manners, leading to inefficiencies in updating and using high-definition maps.
Innovation Solution
A method and apparatus that generate and use maps with location information and reference information, allowing for flexible expression of events using different location reference manners, such as road-level and lane-level, and enabling seamless communication between various devices and systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different map providers use different location reference manners to express event locations, then each provider can optimize for their specific use case, but flexibility and compatibility of the map system deteriorates
Solution Approach 1:
The patent introduces a standard event expression structure that acts as an intermediary between different location reference manners. This structure includes standardized fields (event_id, event_type, location, time, etc.) that can accommodate various location reference systems through optional fields, enabling different map providers to express event locations in their preferred manner while maintaining compatibility through the common standardized framework.
Solution Approach 2:
The patent creates a universal event expression structure that can serve multiple functions and different map providers simultaneously. The standardized event structure is designed to be multi-functional, supporting various location reference manners (road-level, lane-level, block-level, etc.) within a single unified framework, allowing one structure to fulfill multiple expression needs.
2Measurement precision
If high-definition maps are frequently updated to meet accuracy and real-time performance requirements, then map accuracy improves, but data collection frequency and system resource consumption increase
Solution Approach 1:
The patent segments map data into static map data and dynamic event data. Static map data (road geometry, lane configurations) is updated infrequently, while dynamic event data (accidents, congestion, weather) is updated in real-time. This segmentation allows the system to maintain high accuracy for time-critical event information without requiring frequent updates of the entire map dataset, thus improving data collection efficiency.
Solution Approach 2:
The patent implements partial updates by only transmitting and processing changed event data rather than complete map datasets. The standardized event expression structure enables selective updating of specific event fields, allowing the system to maintain high-definition map accuracy by updating only the necessary partial data (changed events) rather than performing excessive full-map updates.
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
This application discloses a map generation method and apparatus, and a map using method and apparatus. The map generation method includes: generating a map, where the map includes location information of a first event and location reference information of the first event, the location information is used to indicate a location at which the first event occurs, and the location reference information is used to indicate a location reference manner on which the location information is based; and sending the map. A method for sending the location information of the first event and the location reference information of the first event can be used to indicate different expressions of the location information of the first event, thereby improving flexibility and compatibility of expressing an event on a map.