Camera-Based Plate Dimension Identification for Faster Warehouse Storage

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Solution Overview

Problem

Manual measurement of artificial stone plate sizes is time-consuming, leading to low storage efficiency in warehouses.

Innovation Solution

A method and device that combines weighing technology and photogrammetric measurement to automatically calculate plate dimensions by establishing a dimension identification model, correcting shooting distance, and using image pixel ratios to enhance accuracy and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual measurement with tape measure is used, then measurement can be performed, but time consumption increases and storage efficiency decreases

Engineering Contradiction:

Improveplate size measurementVSAvoidmeasurement time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the mechanical tape measure system with an optical measurement system consisting of a camera and image processing algorithms. The camera captures images of the plate, and the system automatically calculates dimensions by detecting plate edges and reference marks in the image, eliminating the need for manual mechanical measurement and significantly reducing measurement time.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The measurement system performs self-measurement by automatically capturing images, processing them through edge detection algorithms, and calculating plate dimensions without human intervention. The system uses reference marks on the plate itself as measurement benchmarks, allowing the plate to serve as its own measurement reference.

Inventive Principle:

Principle #25Self-service

2Loss of information

If manual measurement is used, then size information can be obtained, but storage efficiency is reduced

Engineering Contradiction:

Improvesize information acquisitionVSAvoidstorage efficiency

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

The system enables continuous measurement operations by automatically processing multiple plates in sequence. The camera continuously captures images, and the image processing system continuously analyzes them to extract dimension information, allowing uninterrupted workflow and improving overall storage efficiency compared to intermittent manual measurement.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The optical measurement system replaces manual measurement operations, enabling automatic and continuous acquisition of size information. This substitution eliminates the time-consuming nature of manual measurement and allows rapid processing of multiple plates, thereby improving storage efficiency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If automatic image-based measurement is implemented, then measurement speed increases, but measurement accuracy may be affected by shooting distance variations

Engineering Contradiction:

Improvemeasurement speedVSAvoiddimensional accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system performs preliminary calibration by establishing the relationship between image pixel dimensions and actual plate dimensions at known shooting distances before actual measurement. Reference marks with known dimensions are used to create a calibration model that accounts for perspective distortion and shooting distance variations, enabling accurate measurements during automatic operation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system compensates for shooting distance variations by dynamically adjusting measurement parameters based on detected reference marks in each image. By calculating the position and size of reference marks, the system determines the actual shooting distance and adjusts the pixel-to-real-world conversion ratio accordingly, maintaining measurement accuracy across different distances.

Inventive Principle:

Principle #35Parameter changes

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

Automatically measures plate sizes with high accuracy without manual participation, improving storage efficiency by eliminating the need for manual measurement.

Implementation Method 1

collecting an image of the target plate

Methodology Applied

Scientific EffectLight reflection: Reflection

Implementation Method 2

measuring a weight M of a target plate

Methodology Applied

Scientific EffectGravitation: Gravitation

Data Source

PatentUS20250252592A1Method, device and non-transitory computer-readable storage medium for identification plate dimension

Publication Date: 2025.08.07 VEEGOO TECH CO LTD

AI summary

A plate dimension identification method is provided, where respectively under n predetermined shooting distances h, ratio R of length of a reference plate to an image pixel length, and ratio R′ of width of the reference plate to an image pixel width are collected; each shooting distance is correlated with the corresponding R and R′ to establish an identification model; a distance between a camara and a plate-carrying surface is measured and input into the model to output corresponding ratios R and R′ Rrough and R′rough); a target plate image is captured, from which pixel width and length are obtained; a rough width is calculated based on the pixel width and R′rough, and a rough length is calculated based on the pixel length and Rrough; and accurate length and width of the target plate are obtained based on the rough width and length.