Map Data Accuracy Verification via Telematics Distance Comparison

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Solution Overview

Problem

Digital maps provided by vendors are often inaccurate, necessitating a method to determine their accuracy and identify inaccuracies.

Innovation Solution

A method involving the determination of estimated distances based on map data and actual distances collected through telematics data, with a comparison to identify inaccuracies and flag segments that exceed a configurable threshold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If digital maps are provided by vendors for various purposes, then map coverage and availability are improved, but map accuracy deteriorates

Engineering Contradiction:

Improvemap coverageVSAvoidmap accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system collects actual travel distance data from vehicles equipped with telematics devices and compares it against map-based estimated distances. This feedback loop identifies discrepancies and enables correction of inaccurate map segments, thereby improving map accuracy while maintaining broad coverage

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The map accuracy improvement system utilizes data generated by normal vehicle operations (telematics data) to automatically identify and correct map inaccuracies. The system self-updates map segments based on accumulated real-world travel data without requiring manual surveying or external intervention

Inventive Principle:

Principle #25Self-service

2Productivity

If map data is used to determine travel distances, then route planning efficiency is improved, but distance measurement accuracy deteriorates

Engineering Contradiction:

Improveroute planning efficiencyVSAvoiddistance measurement accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system uses map data for initial route planning (partial action) to maintain efficiency, then applies telematics-based actual distance measurements to specific route segments to correct accuracy issues. This selective approach improves distance measurement without compromising overall route planning efficiency

Inventive Principle:

Principle #16Partial or excessive action

3Measurement precision

If telematics data is collected to verify map accuracy, then map accuracy assessment is improved, but data collection complexity increases

Engineering Contradiction:

Improvemap accuracy assessmentVSAvoiddata collection complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The telematics devices serve multiple functions: they collect data for map accuracy verification, track vehicle location, monitor travel patterns, and support route optimization. By making the data collection system multi-functional, the patent reduces overall system complexity while improving map accuracy assessment

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9869557B2Determining the accuracy of map data and providing reports for same

Publication Date: 2018.01.16 UNITED PARCEL SERVICE OF AMERICAN INC

AI summary

Computer program products, methods, systems, apparatus, and computing entities are provided for determining the accuracy of map information/data. In one embodiment, map information/data and collected telematics information/data can be compared. The difference between the map information/data and the telematics information/data can be used to determine the accuracy of the map information/data.