Abstract
A skill learning method is proposed in this paper. For a Dual-peg-in-hole problem, it is very difficult to analyze force and contact status. To extract the human skill of this kind of work, we record the force/torque data, sequence data, and psychological data by observing human work. Since human performance is inherently stochastic, we use a Hidden Markov Model (HMM) to represent these characteristics. By trainning the HMM using human data, we obtain a reasonable sequence of Dual-peg-in-hole work and the threshold of contact-state transition. We represent the human skill as a set of simple production rules that can easily be adopted into an actual manipulator system. This method is used in the assembly of self-organizing manipulator cells. The simulations and experiments illustrate the effectiveness of the algorithm.
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