Map Layer Provision System Asynchronous Data Stream Integrity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing map data modification techniques require synchronized modifications across different map layers, limiting flexibility and freshness, and may introduce referential integrity issues.
Innovation Solution
A method and machine-readable instruction code that allow asynchronous modification of map layers, providing modifications as a stream of data without temporal alignment with other layers, incorporating integrity verification to ensure referential and logical consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synchronized modification of map layers is implemented, then referential integrity is maintained, but data freshness and flexibility are reduced
Solution Approach 1:
The patent segments the map data system into independent map layers (base layer, restriction layer, point of interest layer, etc.) that can be modified asynchronously. Each layer is treated as an independent unit with its own modification stream, allowing parallel updates without synchronization constraints while maintaining referential integrity through the acyclic graph structure.
Solution Approach 2:
The patent implements dynamic modification streams for each map layer, where changes are propagated asynchronously through the system. The acyclic graph structure enables dynamic determination of modification propagation paths, allowing the system to adapt to different update scenarios without rigid synchronization requirements.
2Stability of the object's composition
If synchronized modification of map layers is implemented, then consistency across layers is ensured, but flexibility and device complexity are increased
Solution Approach 1:
The patent divides the map data system into independent layers that can be modified separately. Each layer has its own modification stream, eliminating the need for complex synchronization protocols while maintaining consistency through the acyclic graph structure that defines parent-child relationships between layers.
Solution Approach 2:
The patent introduces an acyclic graph structure as an intermediary that defines the relationships between map layers. This graph serves as a mediator that automatically determines the propagation path of modifications without requiring active synchronization coordination, simplifying the system architecture.
3Loss of time
If asynchronous modification streams are used, then data freshness is improved, but referential integrity issues may arise
Solution Approach 1:
The patent establishes the acyclic graph structure in advance, which pre-defines the parent-child relationships and modification propagation paths between map layers. This preliminary structuring enables asynchronous modifications to be propagated correctly without real-time coordination, maintaining referential integrity through the pre-established hierarchy.
Solution Approach 2:
The patent implements feedback mechanisms where modification streams carry information about changes made to map layers. The acyclic graph structure enables automatic feedback propagation, where modifications in parent layers trigger corresponding updates in child layers, ensuring referential integrity is maintained through automated feedback loops.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
To modify map data, a map layer provision system (70, 80) effects modifications of map layer data and generates and outputs data indicative of the modifications in a stream (50, 60).