Map-Sensor Disparity Detection for Autonomous Vehicle Updates

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Solution Overview

Problem

Disparities between map data and the real-world environment perceived by vehicle sensors can cause navigation inaccuracies in autonomous vehicles, making it difficult and costly to identify and update map data and sensor configurations.

Innovation Solution

A map data system analyzes vehicle sensor data to detect and resolve disparities by determining the cause, such as changes in the physical environment, calibration errors, or localization issues, and updates the map data and sensor configurations accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual methods are used to identify and update map data and sensor configurations to resolve disparities, then updates can be performed, but the process becomes technically difficult and costly

Engineering Contradiction:
Improvemap data accuracyVSAvoidupdate process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs self-diagnosis by automatically detecting disparities between map data and sensor data, identifying the causes of these disparities, and resolving them without requiring manual intervention. The map data system continuously monitors and updates its own data integrity through automated comparison and analysis processes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system establishes a feedback loop where sensor data from vehicles is continuously compared against map data, disparities are detected and analyzed, and updates are automatically applied. This closed-loop feedback mechanism enables continuous improvement of map data accuracy through automated monitoring and correction.

Inventive Principle:
Principle #23Feedback

2Productivity

If automated controls are implemented in vehicles, then navigation efficiency improves, but the requirement for accurate map data increases, making disparities more critical

Engineering Contradiction:
Improvenavigation efficiencyVSAvoidmap data precision requirement
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system performs preliminary actions by proactively detecting and resolving disparities before they impact autonomous vehicle navigation. The continuous monitoring and automatic update process ensures map data is corrected in advance, preventing navigation errors rather than reacting to them after occurrence.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If frequent updates to map data and sensor configurations are performed to maintain accuracy, then navigation reliability improves, but the cost and complexity of maintenance increases

Engineering Contradiction:
Improvenavigation reliabilityVSAvoidmaintenance time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The automated system performs self-maintenance by continuously monitoring map data accuracy, detecting disparities, and applying updates without requiring manual intervention. This eliminates the need for human operators to spend time on routine maintenance tasks while maintaining high navigation reliability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system maintains continuous monitoring and automatic update operations, ensuring map data accuracy is maintained without interruption. The automated process runs continuously in the background, eliminating downtime associated with manual maintenance while preserving navigation reliability.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS12498228B1Detecting and resolving disparities between map data and environments perceived by sensor systems
Publication Date: 2025.12.16 ZOOX INC
  • US12498228B1 patent drawing
  • US12498228B1 patent drawing
  • US12498228B1 patent drawing

AI summary

Techniques are discussed herein for detecting and resolving disparities between sensor data perceived by sensor-based systems operating in an environment and corresponding map data of the environment. Sensor data may be captured by a vehicle or other sensor system operating in an environment, including representations of objects at various locations in the environment. The object representations may be used to determine disparities between the sensor data and map data associated with the same locations. Such disparities may be caused by, for example, physical changes in the environment, map data changes, and/or localization errors of the sensor system. The techniques discussed herein further include analyzing the map data and sensor data to determine causes associated with the disparities, and resolving the disparities by updating the map data and/or transmitting updated sensor configuration data to sensor systems in the environment.