Crowdsourced Turn Indicator Map Refinement
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Solution Overview
Problem
Autonomous vehicles face challenges in navigating efficiently due to the vast amounts of data required for processing and storing information about road conditions, obstacles, and traffic signals, which can lead to navigation errors and increased data storage needs.
Innovation Solution
A server-based system that aggregates turn signal activation information from multiple vehicles to generate a refined location map, allowing vehicles to receive and use crowdsourced data for turn signal activation, thereby reducing the need for extensive data storage and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mapping technology is used to navigate, then navigation coverage is comprehensive, but data storage requirements and processing complexity increase significantly
Solution Approach 1:
The patent extracts only the essential navigation information (turn signal activation locations) from the complete road environment, storing merely the coordinates and activation points rather than comprehensive map data. This extraction approach reduces data volume while maintaining navigation reliability by focusing on critical decision points.
Solution Approach 2:
Instead of providing uniform detailed mapping across all road segments, the system applies local quality by identifying and storing turn signal activation locations only at specific critical points where navigation decisions are needed. This localized data storage approach reduces overall data requirements while maintaining navigation accuracy at decision-critical locations.
2Measurement precision
If comprehensive road data is stored and processed, then navigation decisions are accurate, but processing time and computational resources increase
Solution Approach 1:
The system extracts only the critical turn signal activation locations from comprehensive road data, storing merely the essential coordinates and activation points. This extraction eliminates the need to process vast amounts of unnecessary road data, reducing computational time while maintaining precision at decision-critical locations.
Solution Approach 2:
Instead of processing all road data to identify turn signal locations, the system inverts the approach by directly capturing and storing only the turn signal activation locations from sensor data. This inversion eliminates unnecessary processing steps while maintaining location accuracy.
3Adaptability or versatility
If traditional map data is used for navigation, then complete road information is available, but system complexity and update requirements increase
Solution Approach 1:
The patent extracts only the essential turn signal activation locations from complete road information, storing merely the critical coordinates and activation points. This extraction simplifies the mapping system by eliminating the need to store and manage comprehensive road data, while still providing adaptability at decision-critical locations.
Solution Approach 2:
The system enables vehicles to self-generate navigation data by detecting and storing turn signal activation locations from their own sensor data. This self-service approach eliminates the need for complex centralized map updating systems, reducing overall system complexity while maintaining road condition adaptability through distributed data collection.
Data Source
AI summary
A server-based system for generating a map for storing a turn signal activation location along a road segment may include at least one processor comprising circuitry and a memory. The memory may include instructions that when executed by the circuitry cause the at least one processor to receive drive information from each of a plurality of vehicles that traversed a road segment, wherein the drive information includes turn signal activation information indicating a detected change in state of a turn signal of at least one target vehicle and a location where the detected change in state of the turn signal of the target vehicle occurred; aggregate the turn signal activation information from two or more of the plurality of vehicles to generate a refined location of a turn signal activation location associated with the road segment; store an indicator of the refined location of the turn signal activation location in a map; store an indicator of the refined location of the turn signal activation location in a map; and distribute the map to one or more vehicles that later traverse the road segment.