Year-end Sale % OFF 
Abstract
Fall from height (FFH) is an accident that leads to fatalities in construction workers, and a major cause of FFH is due to the improper fastening of a safety hook of a safety harness to a temporary structure. In this study, we propose a new approach for recognizing the fastening state of the safety hook based on the similarity of motion between the motion of the hook and the body. We first assume that the similarity of motion between a hook and a body will be more similar when a hook is fastened to a part of a body than when the hook is fastened to a temporary structure. Under this assumption, we propose a new method that measures the similarity of motion of a hook and a body. In the proposing method, motions are represented through acceleration and rotations of the hook and the body. The magnitude of acceleration is represented as an ordinal variable and the magnitude of acceleration is jointly represented with rotations in a spherical coordinate system for effective similarity measurement of both motions. The effectiveness of our approach is verified by our newly collected task-related human activity dataset comprising the motion data of the hook and the body from inertial measurement unit (IMU) embedded mobile devices. Our proposed method confirmed that representing the magnitude of acceleration as an ordinal variable shows improved performance of 82.95% in terms of Youden’s index. Moreover, it further verified that jointly representing the magnitude of acceleration and the rotation in the spherical coordinate system shows improved performance of 90.64% in terms of Youden’s index.
Highlights
Occupational accidents occur frequently every year, and various efforts to prevent them are being made worldwide
It is possible to represent the data as an ordinal variable, when the data are represented as a continuous variable, it showed a comparatively better performance [21]
We proposed a new approach to prevent fall from height (FFH) in advance by recognizing whether a safety hook is fastened to a temporary structure
Summary
Occupational accidents occur frequently every year, and various efforts to prevent them are being made worldwide. The associate editor coordinating the review of this manuscript and approving it for publication was Usama Mir. construction sites as compared to other industrial sites in that high-altitude work comprise a large proportion of the total work, and the majority of such accidents results in fatal injuries. According to statistics on fatal occupational injuries [1], [2], it was confirmed that among all deaths, deaths due to falls comprised 31.1% in the UK [2] and 44.5% in the United States [1], respectively. FFHs at construction sites are caused by various factors such as environmental factors, task-related factors and personal factors [3], [4]. They can be caused by a single factor
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
