Prefabrication assembly has been a widely used method in the construction industry in recent years. A controlling system for teleoperation of robotic arms in the prefabrication assembly with hand gesture recognition based on transfer learning is described in this study. A deep convolutional neural network with Xception model was used to recognize 13 different hand gesture types in the prefabrication assembly process with robotic arm in a laboratory setting. The proposed system provides safety and convenience to operators in construction sites. Results demonstrated that the proposed system has satisfactory performance and the developed algorithm can be used for teleoperation of robotic arms in prefabrication assemblies to provide feasible support for prefabricated construction.
prefabrication assembly; hand gesture recognition; teleoperation; human–machine interaction; transfer learning