Road Situation Data Fusion With Redundancy Removal for Real-Time Queries

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Solution Overview

Problem

Existing systems fail to precisely recognize road situations using data from various road infrastructure sensors and remove unnecessary data, leading to inefficiencies in processing speed and lack of real-time context awareness for vehicles.

Innovation Solution

A method and apparatus that utilize a sensor group comprising Lidar, camera, and radar to collect data, model object relationships on a graph, construct a grid-based spatial index, and remove redundant data to provide real-time context awareness for vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If data from various road infrastructure sensors is collected and processed, then road situation recognition precision is improved, but processing time increases

Engineering Contradiction:
Improveroad situation recognition precisionVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts and removes redundant data from the collected sensor data. The data processing apparatus identifies and eliminates duplicate or unnecessary information while preserving essential road situation data, thereby reducing processing time without compromising recognition precision

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the data processing into distinct stages: data collection from multiple sensors, redundancy identification, redundant data removal, and final road situation recognition. This segmented approach allows for optimized processing at each stage, improving overall efficiency

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If data from various road infrastructure sensors is collected, then road situation recognition precision is improved, but processing speed decreases

Engineering Contradiction:
Improveroad situation recognition precisionVSAvoidprocessing speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent extracts and removes redundant data from the collected sensor data. The data processing apparatus identifies and eliminates duplicate or unnecessary information while preserving essential road situation data, thereby reducing processing time without compromising recognition precision

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent discards redundant data that does not contribute to road situation recognition while recovering and preserving only the essential information needed for accurate analysis, thus improving processing speed

Inventive Principle:
Principle #34Discarding and recovering

3Quantity of substance

If redundant data is not removed, then data completeness is maintained, but processing efficiency decreases

Engineering Contradiction:
Improvedata completenessVSAvoidprocessing efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent extracts and removes redundant data from the collected sensor data. The data processing apparatus identifies and eliminates duplicate or unnecessary information while preserving essential road situation data, thereby reducing processing time without compromising recognition precision

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by selectively processing only the essential portions of the data while identifying and removing redundant portions, achieving optimal balance between data completeness and processing efficiency

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP4198940B1Apparatus and method for processing road situation data
Publication Date: 2025.10.22 KOREA NAT UNIV OF TRANSPORTATION IND ACADEMIC COOP FOUND
  • EP4198940B1 patent drawingFigure 1
  • EP4198940B1 patent drawingFigure 2~3A
  • EP4198940B1 patent drawingFigure 3B

AI summary

The present disclosure relates to an apparatus and a method for processing road situation data. A road situation data processing method according to an exemplary embodiment of the present disclosure is a road situation data processing method which is performed by a processor of an apparatus for processing road situation data including: collecting sensing data on objects on a road from a plurality of sensors provided on the road; modeling a relationship between the objects on a graph based on sensing data on the objects; constructing a grid-based spatial index with respect to the graph modeling result; removing redundant sensing data among sensing data on the objects included in the grid-based spatial index; extracting an object corresponding to a response to a query by performing a predetermined query on the objects from which the redundant sensing data is removed; and outputting context awareness data to the object corresponding to the response to the query.