의약 용기의 품질 검사를 위한 머신비전을 적용한다중 카메라 인라인 검사 시스템 개발

Abstract

In this paper proposes a study on the development of a multi-camera inline inspection system using machinevision for quality inspection of pharmaceutical containers. The proposed technique captures the pharmaceuticalcontainers from multiple angles using several cameras, allowing for more accurate quality assessment. Based onthe captured data, the system inspects the dimensions and defects of the containers and, upon detecting defects,notifies the user and automatically removes the defective containers, thereby enhancing inspection efficiency. Thedevelopment of the multi-camera inline inspection system using machine vision is divided into four stages. First,the design and production of a control unit that fixes or rotates the containers via suction. Second, the design andproduction of the main system body that moves, captures, and ejects defective products. Third, the design anddevelopment of control logic for the embedded board that controls the entire system. Finally, the design anddevelopment of a user interface (GUI) that detects defects in the pharmaceutical containers using image processingof the captured images. The system’s performance was evaluated through experiments conducted by a certifiedtesting agency. The results showed that the dimensional measurement error range of the pharmaceuticalcontainers was between -0.30 to 0.28 mm (outer diameter) and -0.11 to 0.57 mm (overall length), which is superiorto the global standard of 1 mm. The system's operational stability was measured at 100%, demonstrating itsreliability. Therefore, the efficacy of the proposed multi-camera inline inspection system using machine vision forthe quality inspection of pharmaceutical containers has been validated.