Vehicle V2X Information Selection Using Lane-Based Spatial Filtering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing volume of information received by vehicles through V2X technology overwhelms on-board driver assistance systems, risking saturation and slowed operation.
Innovation Solution
A method and device that estimate the position of received information in a traffic lane map and determine locations of interest to prioritize and filter relevant information for on-board systems, using simplified or complex localization procedures based on network density and statistical error, with a spatial filter to select and transmit only necessary data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all received V2X information is transmitted to on-board systems, then complete information availability is improved, but system saturation and slowed operation occur
Solution Approach 1:
The patent extracts and transmits only the relevant subset of V2X information to on-board systems by estimating positions in a traffic lane map and comparing against locations of interest. This selective extraction maintains information completeness for relevant data while filtering out unnecessary information that would cause system saturation.
Solution Approach 2:
The patent applies local quality by treating different spatial regions differently - information located at positions of interest receives priority processing and transmission, while information outside these regions is filtered out. This spatial differentiation ensures that computational resources are focused on locally relevant information.
2Measurement precision
If position estimation uses complex localization procedures, then positioning precision is improved, but processing time increases
Solution Approach 1:
The patent implements dynamic selection between simplified and complex localization procedures based on real-time conditions. When the vehicle is stationary or moving slowly, simplified procedures are used. When moving quickly or in complex environments, complex procedures are activated. This dynamic adaptation optimizes the balance between positioning precision and processing time.
Solution Approach 2:
The patent changes the parameter of localization procedure complexity based on vehicle speed and environmental conditions. By adjusting this parameter dynamically, the system achieves high positioning accuracy when needed while maintaining fast processing during normal operations.
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a method for selecting information items from a plurality of information items which are emitted by transmitters located at a distance from a vehicle, with a view to transmitting the selected information items to at least one system on board the vehicle, the method providing the steps of: a) estimating the position of each information item on a map of movement paths in accordance with the absolute position of the information received (E1), b) determining at least one place of interest at which to position the information items which the at least one on-board system wishes to have transmitted (E2), c) selecting, from the information items received, the ones to transmit to the on-board system in accordance with their estimated position on the map established in step a) and the place of interest identified in step b) (E3). The invention also relates to a device for selecting information items from a plurality of information items which are emitted by transmitters which are located at a distance from a vehicle with a view to transmitting the selected information items to a system on board the vehicle.