Mining Vehicle Calibration Verification Using Environment Scanning

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Solution Overview

Problem

Calibration of mining vehicles, particularly autonomous ones, requires manual verification, which is time-consuming and inefficient, especially in complex worksites with physical limitations.

Innovation Solution

An apparatus and method for mining vehicles that utilize environment scanning to automatically verify calibration procedures by comparing scanning data with reference data to determine deviations and validate the calibration, reducing the need for manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual verification is used for calibration, then calibration accuracy can be ensured, but calibration time and operational efficiency deteriorate

Engineering Contradiction:
Improvecalibration accuracyVSAvoidcalibration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical verification with an automated optical scanning system. The scanner captures images of calibration targets, and image processing algorithms automatically verify calibration accuracy, eliminating the need for manual measurement and verification while maintaining precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system creates digital copies (images) of the physical calibration targets and their positions. By working with these digital representations through image processing, the system can verify calibration accuracy automatically without requiring manual physical measurement, thus reducing time while preserving accuracy.

Inventive Principle:
Principle #26Copying

2Measurement precision

If manual verification is used for calibration, then calibration accuracy can be ensured, but productivity deteriorates

Engineering Contradiction:
Improvecalibration accuracyVSAvoidproduction efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces manual verification processes with automated optical scanning and image processing. This substitution enables rapid calibration verification that maintains accuracy while significantly improving productivity by eliminating time-consuming manual operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-verification by automatically capturing images of calibration targets and processing them through algorithms that determine calibration accuracy without human intervention. This self-service capability maintains measurement precision while dramatically improving production efficiency.

Inventive Principle:
Principle #25Self-service

3Productivity

If automated scanning is used for calibration verification, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improvecalibration efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent employs a scanner that serves multiple functions: it captures calibration target images, records spatial information, and supports various calibration verification operations. This multi-functionality improves productivity while managing device complexity by consolidating capabilities into a single versatile instrument.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system introduces an image processing algorithm as an intermediary between the physical calibration targets and the verification process. This software mediator handles the complexity of automated verification, allowing the hardware to remain relatively simple while achieving high productivity through intelligent processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4421249B1Mining vehicle calibration
Publication Date: 2025.11.26 SANDVIK MINING & CONSTR OY
  • EP4421249B1 patent drawingFigure 1
  • EP4421249B1 patent drawingFigure 2
  • EP4421249B1 patent drawingFigure 3~4a

AI summary

According to an example aspect, there is provided a method, comprising: performing a calibration action of a calibration procedure for a mining vehicle, receiving scanning data of the calibration action on the basis of environment scanning performed by the scanner of the calibration action, wherein the scanning data is indicative of at least one position of a work implement portion of the work implement in relation to a body portion of the body, receiving calibration verification reference data indicative of at least one of a calibration target position of the work implement portion in relation to the body portion for the calibration action or target movement range of the work implement portion in relation to the body portion for the calibration action, processing the scanning data and the calibration verification reference data to determine at least one of a deviation of current position of the work implement portion from the calibration target position or a deviation of current range of movement of the work implement portion from the target movement range; and verifying the calibration procedure on the basis of the determined at least one deviation.