Abstract
Most existing virtual assembly technologies cannot effectively unify the operating and the feedback areas in both visualization and haptics with a large mobile workspace. Therefore, it is difficult to ensure high interactive naturalness and operational efficiency in a large assembly space. To address these problems, we propose a natural mobile interactive virtual assembly method with bare hand manipulation and unrestricted force feedback (MIVAM-BHM-UFF), covering a mobile interaction method, an unrestricted force feedback method, and a bare hand manipulation method. The mobile interaction method is developed to automatically track and capture the operator’s gestures in a moving way, expanding the interactive space. An unrestricted force feedback method is designed to provide a non-contact electromagnetic feedback force, eliminating the limitation of the traditional force feedback device and improving the interactive naturalness. A bare hand manipulation method is proposed to improve interactive efficiency by unifying the operational area and feedback area. To verify the effectiveness of MIVAM-BHM-UFF, five assembly experiments were performed. Experimental results indicate that compared with four assembly techniques, MIVAM-BHM-UFF show better user experiences in the virtual assembly processes.
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