Multi-Angle Overlap Detection for Conveyor Battery Sheets

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Solution Overview

Problem

In the manufacturing process of prismatic rechargeable batteries, overlapping sheets on a conveyor can cause malfunctions, leading to product defects and damage to equipment.

Innovation Solution

An object overlap detection apparatus and method that utilizes multiple photographing units to capture objects from various angles, analyzing images to detect overlapping sheets, and a controller to control the transport and alert for overlaps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple photographing units are used to photograph objects from multiple angles, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improveoverlap detection accuracyVSAvoidphotographing unit configuration
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent employs photographing units positioned at different spatial locations and angles to capture images of objects from multiple dimensions. Specifically, photographing units are arranged to capture top views, side views, and angled views simultaneously, transforming a single-point detection into a multi-dimensional detection system. This dimensional approach enables comprehensive overlap detection by comparing object positions across multiple perspective images, thereby improving measurement precision without requiring complex mechanical scanning systems.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If images are analyzed from multiple angles to detect overlapping objects, then detection reliability is improved, but processing time increases

Engineering Contradiction:
Improveoverlap detection reliabilityVSAvoidimage processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by capturing all necessary images from multiple photographing units simultaneously before the objects complete their transport cycle. The system pre-processes these images by identifying object boundaries and positions in advance, then performs overlap detection by comparing the captured images with reference images or by analyzing the spatial relationships between detected objects. This preliminary capture and processing approach ensures reliable detection without requiring time-consuming sequential imaging or post-transport analysis.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4610631A1Object overlap detection apparatus and method
Publication Date: 2025.09.03 SAMSUNG SDI CO LTD
  • EP4610631A1 patent drawingFigure 1
  • EP4610631A1 patent drawingFigure 2
  • EP4610631A1 patent drawingFigure 3

AI summary

An object overlap detection apparatus includes one or more photographing units configured to photograph objects from multiple angles. A determining unit is configured to determine whether there are overlapping objects by analyzing an image obtained by photographing the objects in a vertical direction using the one or more photographing units. The determining unit is also configured to determine whether there are overlapping objects by analyzing an image obtained by photographing a side of using the one or more photographing units. A controller is configured to receive information indicating whether the objects overlap from the determination units and to control one or more of an alarm signal, an operation of the photographing units, and transport of the objects.