Handheld Volume Measuring Apparatus with Dual Camera Depth Analysis

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Solution Overview

Problem

Existing volume measuring apparatuses are prone to inaccuracies due to improper user operation, such as incorrect posture or angle, leading to measurement errors when measuring the volume of objects.

Innovation Solution

A handheld volume measuring apparatus equipped with a processor, trigger button, first camera, and second camera that captures images from different angles, generates depth graphics, and sends an alarming signal if the measuring posture does not match the preset conditions, ensuring accurate volume data computation only when the posture is correct.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the volume measuring apparatus is made handheld and portable, then the ease of operation and mobility are improved, but the measurement precision deteriorates due to improper user posture and angle

Engineering Contradiction:
ImprovemobilityVSAvoidvolume measurement accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system captures images from multiple cameras, computes depth graphics, and analyzes whether the target object is fully contained and whether the capturing angle meets preset conditions. This feedback mechanism allows the system to evaluate measurement quality in real-time and provide guidance to the user for posture correction, thereby maintaining high measurement precision despite the handheld portable design

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary validation by analyzing the captured images and depth graphics before final volume computation. It checks whether the target object is fully contained in the field of view and whether the capturing angle satisfies preset conditions, preventing inaccurate measurements from being processed further

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the user operates the volume measuring apparatus without proper training or guidance, then the ease of operation is improved, but the measurement precision deteriorates due to incorrect posture

Engineering Contradiction:
Improveease of useVSAvoiddata accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system provides automatic feedback by analyzing captured images and depth graphics to determine whether measurement conditions are met. This eliminates the need for user training while maintaining high measurement precision through automated quality control

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-validation by automatically checking whether the target object is fully contained and whether capturing angles are appropriate, without requiring external guidance or user expertise. The system serves itself by identifying and correcting measurement quality issues

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Improves the accuracy of volume measurements by ensuring the measuring posture matches the preset conditions, preventing errors and ensuring the computed data is within an acceptable tolerance scope.

Implementation Method 1

controlling the first camera and the second camera to respectively capture a left image and a right image

Methodology Applied
Scientific EffectImage capture through optical detection: Photography

Implementation Method 2

computing the left image and the right image by the processor to generate a depth graphic correspondingly

Methodology Applied
Scientific EffectDepth computation through image processing: Image Processing

Data Source

PatentEP3926296B1Alarming and measuring method for volume measuring apparatus
Publication Date: 2024.04.24 CHAMPTEK
  • EP3926296B1 patent drawingFigure 1
  • EP3926296B1 patent drawingFigure 2
  • EP3926296B1 patent drawingFigure 3

AI summary

An alarming and measuring method for a volume measuring apparatus (1) including a processor (10), a button (11), a first camera (12), and a second camera (13), the method includes: controlling the first and second cameras (12, 13) to capture a left image and a right image when the button (11) is pressed; generating a depth graphic (4) by the processor (10) according to the left and right image; scanning the depth graphic (4) to determine an existence of a target box (3); calculating a capturing angle of the apparatus (1) with respect to the target box (3) based on contour lines of the target box (3); alarming when the target box (3) is not in the depth graphic (4) or the capturing-angle does not match a measuring condition; and, calculating volume related data of the target box (3) according to the contour lines when the target box (3) exists and the capturing angle matches the measuring condition.