Civic Address Confidence Determination Using Parcel Data Alignment

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Solution Overview

Problem

Current systems face challenges in accurately determining the confidence level of a civic address during enhanced 911 calls, leading to potential misdispatch of emergency services due to inaccuracies in geodetic location mapping to civic addresses.

Innovation Solution

A method and system that utilize parcel-specific information from a nationwide database to compare geodetic locations with parcel data, determining a confidence level for the civic address by assessing the alignment between the geodetic location and parcel boundaries, and only providing the civic address to public safety answer points if the confidence level meets a configurable threshold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If geodetic location is used to determine civic address, then location-based address assignment is automated, but accuracy of address determination deteriorates due to mapping errors

Engineering Contradiction:

Improveautomation of address assignmentVSAvoidaccuracy of civic address determination

Core Design Contradiction:

Extent of automationVSMeasurement precision

Solution Approach 1:

The patent introduces parcel information as an intermediary element between the geodetic location and the civic address. The system retrieves parcel information using the geodetic location as a key, then uses this intermediate parcel data to determine the civic address, thereby improving accuracy while maintaining automation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct mechanical mapping from geodetic coordinates to civic addresses with a two-step process: first mapping to parcel information, then from parcel information to civic address. This substitution of the mapping mechanism resolves the accuracy issue while preserving automated operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If confidence level threshold is set high, then accuracy of dispatched addresses improves, but number of valid addresses provided decreases

Engineering Contradiction:

Improveaccuracy of civic address determinationVSAvoidnumber of addresses provided to PSAP

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent changes the parameter used for address validation from direct geodetic-to-address mapping confidence to parcel-information-based confidence. By using parcel boundaries and structure information as validation criteria, the system achieves higher accuracy without unnecessarily reducing the quantity of valid addresses provided.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20240214775A1Intelligent methodology for determining a confidence level of a civic address associated within an enhanced 911 call

Publication Date: 2024.06.27 T MOBILE INNOVATIONS LLC

AI summary

Systems and methods are provided for determining a confidence level of a civic address associated with an enhanced 911 call. After a request by a public safety answer point (PSAP) for a civic address corresponding to user equipment (UE) initiating a call for emergency services is received at a node, the node receives from the UE a geodetic location corresponding to the UE. The geodetic location corresponding to the UE is utilized to retrieve parcel information from a database. Based on a first portion of the parcel information and a comparison of a second portion of the parcel information to the geodetic location, a confidence level of the civic address can be determined.