Building Intelligence in the Mechanical Domain – Harvesting the Reservoir Computing Power in Origami to Achieve Information Perception Tasks

02/10/2023
by   Jun Wang, et al.
Virginia Polytechnic Institute and State University
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In this paper, we experimentally examine the cognitive capability of a simple, paper-based Miura-ori – using the physical reservoir computing framework – to achieve different information perception tasks. The body dynamics of Miura-ori (aka. its vertices displacements), which is excited by a simple harmonic base excitation, can be exploited as the reservoir computing resource. By recording these dynamics with a high-resolution camera and image processing program and then using linear regression for training, we show that the origami reservoir has sufficient computing capacity to estimate the weight and position of a payload. It can also recognize the input frequency and magnitude patterns. Furthermore, multitasking is achievable by simultaneously applying two targeted functions to the same reservoir state matrix. Therefore, we demonstrate that Miura-ori can assess the dynamic interactions between its body and ambient environment to extract meaningful information – an intelligent behavior in the mechanical domain. Given that Miura-ori has been widely used to construct deployable structures, lightweight materials, and compliant robots, enabling such information perception tasks can add a new dimension to the functionality of such a versatile structure.

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