Probe Point Data Validation for Traffic Condition Accuracy
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Solution Overview
Problem
Existing traffic systems face inaccuracies in determining traffic conditions due to the inclusion of probe point data objects with insufficient quality, which can lead to erroneous calculations and require frequent parameter adjustments in traffic quality engines.
Innovation Solution
A method and apparatus that determine and validate probe point data objects by mapping them to a geospatial grid and identifying anomalous sets, excluding probe points not associated with road segments, and using image processing models to correct GPS inaccuracies, while also validating probe points through sequential checks to ensure quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If all probe point data objects are included in traffic condition determinations, then the quantity of data for traffic analysis is increased, but the accuracy of traffic condition determinations deteriorates due to inclusion of low-quality probe points
Solution Approach 1:
The patent extracts and removes anomalous probe point data objects from the dataset before performing traffic condition determinations. The system identifies probe points that do not correspond to valid road segments and excludes them from analysis, thereby maintaining data quantity while improving accuracy by eliminating low-quality entries.
2Adaptability or versatility
If parameter adjustments are made frequently to maintain traffic quality, then the adaptability of the traffic system is improved, but the device complexity and operational burden increase
Solution Approach 1:
The patent performs preliminary filtering of probe point data to remove anomalous entries before they enter the traffic condition determination process. By pre-processing the data to ensure quality, the system eliminates the need for frequent parameter adjustments later, reducing operational complexity while maintaining adaptability.
3Ease of operation
If GPS coordinates are used directly for probe point mapping, then the ease of operation is improved, but the measurement precision deteriorates due to GPS inaccuracies
Solution Approach 1:
The patent introduces an intermediary validation step between GPS coordinate acquisition and probe point mapping. The system uses geospatial reference tables and validation logic to verify whether GPS-derived coordinates correspond to actual road segments, thereby correcting GPS inaccuracies while maintaining operational simplicity.
Data Source
AI summary
A method, apparatus and computer program product are provided to determine one or more probe point data objects and/or validate one or more probe point data objects for use with determination of traffic conditions. A determined probe point data object may be determined and/or updated with one or more probe point data objects which exclude any probe point data objects determined to correspond to an off-road location. A validated probe point data object may additionally or alternatively be determined using one or more first validation sequence check operations and using one or more second validation sequence check operations. The determined probe point data object and/or validated probe point data object may be used to determine one or more traffic conditions, and as a result, traffic condition determinations may be determined more accurately and efficiently.