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Registration method for maintenance-work support based on augmented-reality-model generation from drawing data
Journal of Computational Design and Engineering ( IF 4.9 ) Pub Date : 2020-07-24 , DOI: 10.1093/jcde/qwaa056
Won-Hyuk Lee 1 , Kyung-Ho Lee 1 , Jung-Min Lee 1 , Byeong-Wook Nam 1
Affiliation  

The importance of operations and maintenance (O&M) and piping inspection in shipbuilding and offshore plant industries has significantly increased recently. Therefore, this study proposes a system that uses augmented reality (AR) to support these operations. AR in O&M and inspection systems can increase work comprehension and efficiency by utilizing 3D graphics, instead of drawings, to describe specific work functions. To realize this improvement, the augmented model should correspond to the reality; if accurate registration is not achieved, it can disrupt the work functions. Therefore, marker-based AR is used to generate specific recognition objects and correct the location of the augmented model. However, owing to certain characteristics of the shipbuilding and offshore plant industries, the markers are likely to be damaged, and thus the cameras fail to clearly detect them. In this study, a 3D camera was used to generate a point cloud based on 3D image information. Accordingly, the area around the model to be detected was designated as the region of interest (ROI). Furthermore, it is difficult to support a high-end device environment because it is tested as a portable device that can be used in a working environment; therefore, superfluous data were removed by detecting the 3D edges in the ROI, thereby minimizing data operation. The scalability of this work was enhanced using the computer-aided design (CAD) file information extracted from the CAD tool (used in the shipbuilding industry) and converting it into a point cloud. The proposed system is expected to eliminate the issues related to understanding the O&M work by addressing registration errors that might occur in constrained environments and to improve the torsional phenomenon of the augmented models.

中文翻译:

基于图纸数据生成的增强现实模型的维修工作支持注册方法

最近,在造船和近海工厂行业中,操作维护(O&M)和管道检查的重要性显着提高。因此,本研究提出了一种使用增强现实(AR)支持这些操作的系统。通过使用3D图形而非图形来描述特定的工作功能,运维和检查系统中的AR可以提高工作理解和效率。为了实现这一改进,增强模型应与实际情况相对应。如果无法实现准确的注册,则会破坏工作功能。因此,基于标记的AR用于生成特定的识别对象并校正增强模型的位置。但是,由于造船业和近海工厂业的某些特征,标记可能会受到损坏,因此相机无法清晰地检测到它们。在这项研究中,使用3D相机基于3D图像信息生成点云。因此,将要检测的模型周围的区域指定为关注区域(ROI)。此外,由于高端终端设备已经作为可在工作环境中使用的便携式设备进行了测试,因此很难支持高端设备环境。因此,通过检测ROI中的3D边缘可以删除多余的数据,从而最大程度地减少数据操作。使用从CAD工具(用于造船业)中提取的计算机辅助设计(CAD)文件信息并将其转换为点云,可以增强这项工作的可伸缩性。拟议的系统有望消除与了解运营和维护有关的问题
更新日期:2020-07-24
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