Digital Map Extension Verification Using Overlap Region Reconciliation

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Solution Overview

Problem

Existing computer-implemented methods for verifying and approving map extensions for digital maps in movable devices lack precision and safety, particularly in regions with insufficient or no mapping, hindering their integration and use in autonomous driving functions.

Innovation Solution

A computer-implemented method involving geometric reconciliation and feature-based localization using specified tolerance values, along with redundant comparison information from various sensors, to verify and approve map extensions for digital maps, ensuring high precision and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If map extensions are integrated into digital maps without verification, then integration efficiency is improved, but manufacturing precision (geometric accuracy) deteriorates

Engineering Contradiction:
Improveintegration efficiencyVSAvoidgeometric accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent performs verification of map extensions before approving their integration into digital maps. This preliminary verification process checks geometric reconciliation and feature-based localization to ensure accuracy standards are met before the extension is officially integrated, thus maintaining high geometric accuracy while enabling efficient integration of validated extensions.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If verification processes are made more rigorous, then manufacturing precision (geometric accuracy) is improved, but device complexity increases

Engineering Contradiction:
Improvegeometric accuracyVSAvoidverification process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The verification process is segmented into distinct components: geometric reconciliation verification and feature-based localization verification. Each component can be independently configured and executed, allowing rigorous verification of geometric accuracy while managing complexity through modular, separable verification steps rather than a monolithic complex process.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If tolerance values are reduced for higher precision, then manufacturing precision is improved, but reliability decreases due to stricter constraints

Engineering Contradiction:
Improvegeometric precisionVSAvoidsystem robustness
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The system uses configurable tolerance values that can be adjusted based on specific application requirements. By allowing parameter changes in tolerance levels, the system can achieve high geometric precision when needed while maintaining robustness through adaptive tolerance settings that prevent overly strict constraints from causing system failures.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250354824A1Computer-implemented method for verifying and approving a map extension for a digital map for use in a movable device
Publication Date: 2025.11.20 ROBERT BOSCH GMBH
  • US20250354824A1 patent drawing
  • US20250354824A1 patent drawing
  • US20250354824A1 patent drawing

AI summary

A computer-implemented method for verifying and approving a map extension for a digital map for use in a movable device, in particular in a vehicle or a robot. The digital map includes at least one connection region. The map extension includes at least one extension region and one overlap region. The overlap region describes an at least partially identical environmental region as the connection region of the digital map.