Summary

The Hong Kong (HK) government has significantly promoted the adoption of modular integrated construction (MiC) with ambitious development plans to deliver all 30,000 light public housing units, most of the 20,000 transitional housing units, and at least 50% of public rental housing by MiC within the following ten years. Geometry checking of module manufacturing (e.g., dimension, angle, deflection) is a critical task for ensuring the quality of module assembly and forming effective quality control strategies. Nevertheless, conventional practices such as using lasers and levels are not efficient or accurate because they depend on workers' skills, and the incomplete records they produce make it difficult to analyse and control quality effectively. Therefore, it is necessary and urgent to develop innovative automatic geometry checking methods by integrating smart technologies to achieve high-quality and efficient MiC module manufacturing. This project aims to develop an automatic MiC geometry checking system (referred to as “MiChecker”) by integrating smart technologies, including building information modelling (BIM), robotics, sensing technologies, and artificial intelligence (AI) algorithms, to enhance high-quality and efficient module manufacturing in steel MiC.