Vehicle Surrounding Information Filtering for Dynamic Map Traffic Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high communication traffic and costs associated with collecting surrounding information for dynamic map creation and updates, particularly in congested areas, due to the inclusion of low-accuracy data that has limited contribution to map updates, lead to network congestion and inefficiencies.
Innovation Solution
A surrounding information collection system that requests vehicles to transmit data only if the accuracy meets a threshold, calculated based on stored information, thereby reducing communication traffic by limiting collection targets to high-accuracy data, using a vehicle management server and information management server to determine and manage the transmission of surrounding information based on accuracy and contribution degree.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If surrounding information is collected from all vehicles without accuracy filtering, then the quantity of surrounding information increases, but communication traffic and network congestion increase significantly
Solution Approach 1:
The patent applies parameter changes by introducing an accuracy threshold parameter to filter surrounding information. The server calculates accuracy thresholds based on stored map information and only requests data exceeding these thresholds, transforming the collection process from unconditional to conditionally parameter-based, thereby reducing communication traffic while maintaining information quality.
Solution Approach 2:
The patent implements local quality by differentiating the collection requirements for different regions and data types. Accuracy thresholds are calculated and applied locally based on specific map areas and information types, allowing the system to request high-accuracy data only where necessary while reducing or eliminating requests in areas where existing data suffices.
2Quantity of substance
If surrounding information with low accuracy is collected, then the quantity of data increases, but the contribution to dynamic map accuracy decreases
Solution Approach 1:
The patent uses parameter changes by establishing accuracy thresholds as a filtering criterion. By calculating thresholds based on existing map data and comparing them against newly acquired information, the system ensures that only data with sufficient accuracy contribution is collected, directly addressing the issue of low-accuracy data with high volume but low value.
Solution Approach 2:
The patent extracts only the valuable portion of surrounding information by filtering out low-accuracy data. The server identifies and requests only those data points that exceed the calculated accuracy thresholds, effectively separating high-value information from low-value noise, thereby improving the contribution to map accuracy while reducing overall data volume.
3Loss of energy
If accuracy threshold filtering is implemented, then communication traffic is reduced, but the complexity of determining transmission requests increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing accuracy thresholds in the server before actual data collection occurs. This advance preparation of threshold values simplifies the real-time decision-making process, as the server only needs to compare incoming data against pre-established criteria rather than performing complex calculations during data request operations.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of accuracy threshold values that mediate between the server's information needs and the vehicles' data provision. These thresholds act as a simple filtering intermediary that reduces communication traffic while maintaining systematic control, avoiding the need for complex real-time negotiation or evaluation protocols.
Data Source
AI summary
A surrounding information collection system requests a vehicle to transmit surrounding information, and stores the surrounding information transmitted from the vehicle in response to the request. The surrounding information collection system requests a vehicle to transmit surrounding information, the vehicle acquiring the surrounding information having accuracy greater than a threshold calculated based on accuracy of the stored surrounding information.