RESERCH

Human Motion Synthesis for CG-GuidedAssembly Instruction

Many manufacturing factories have started to use cell production system, in which a single worker assembles each product from start to finish almost manually. Cell production system is able to flexibly alter manufacturing plans for responding to diversification of customer needs, however, each worker is supposed to skillful to finish the products by him/herself. Instruction manuals should also be prepared as many as the product types increase. Though conventional printed manuals are still commonly used, large amount of paper is not friendly for the workers and printed contents hardly show 3D information. 3D computer graphics (CG) is capable of changing views and transparency of the contents and has intrinsic advantage of digital data which can be accessed easily on digital device displays. This research proposes a new method to produce human motion needed for assembly process so that the CG guided manual can be prepared easily. This paper introduces geometrical features and the movement of tools into the kinematic equation to adjust the motion to specific tasks for hand work. Prototype system demonstrated effective usabiity for producing fundamental work motions with simple manipulation on a PC.