Gao, Y.; Wang, C.; Huang, L.; Wang, D. and Chen, Z. (2026) SLAM-imu coupling-based construction personnel positioning in invalid scenario of satellite and aerial triangulation. Engineering, Construction and Architectural Management, 33(5), pp. 3599-3624. ISSN 0969-9988
Abstract
Purpose – To help supervisors understand the positions of workers in real-time, provide safety guidance for workers and reduce the occurrence of accidents. This study proposes a real-time positioning algorithm based on multi-source information coupling, aiming to solve the problem of workers' autonomous positioning in signal-blind areas. Design/methodology/approach – The proposed algorithm utilizes the visual SLAM and IMU sensors to perceive the environment, construct three-dimensional images, improve the accuracy of corner point matching, pre-integrate the raw IMU data, and adopt the tightly coupled method to couple the visual and inertial navigation data, thereby establishing a binocular visual SLAM and IMU coupling real-time positioning model. Findings – The real-time positioning technology based on the coupling of visual SLAM and IMU shows good positioning effect and calculation speed in indoor sites, has good adaptability and accuracy in different building construction scenarios, and the positioning error can be controlled within 3%. Originality/value – The successful construction of the real-time positioning method effectively alleviates the problem of inaccurate positioning caused by signal blind areas in the existing positioning management system, helps protect the lives and safety of construction site workers and improves the management efficiency of construction site supervisors.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | imu sensor; invalid scenario of satellite space-three positioning; multi-sensor coupling; visual SLAM |
| Index terms: | triangulation, supervisor, building construction, construction site supervisor, adaptability, construction site, efficiency, management system, accuracy, methodology, coupling, construction personnel, satellite |
| Subjects: | systems engineering, professional development, practitioner, building construction, research methods, workforce, networking, user focus, management, work location, performance management, research design and methodology |
| Topics: | Research Practice, Site Management, Roles and Professions, Quality Management, Information Management, Organizational Design, Design Practice, Engineering Principles, Construction Technology, Human Resources |
| Descriptive scope: | 4 PCTA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here