Development of Joint-Based Motion Prediction Modelfor Home Co-Robot Using SVM


KIPS Transactions on Software and Data Engineering, Vol. 8, No. 12, pp. 491-498, Dec. 2019
https://doi.org/10.3745/KTSDE.2019.8.12.491,   PDF Download:
Keywords: Machine Learning, IoT, Digital Twin, Big data, Co-Robot
Abstract

Digital twin is a technology that virtualizes physical objects of the real world on a computer. It is used by collecting sensor data through IoT, and using the collected data to connect physical objects and virtual objects in both directions. It has an advantage of minimizing risk by tuning an operation of virtual model through simulation and responding to varying environment by exploiting experiments in advance. Recently, artificial intelligence and machine learning technologies have been attracting attention, so that tendency to virtualize a behavior of physical objects, observe virtual models, and apply various scenarios is increasing. In particular, recognition of each robot's motion is needed to build digital twin for co-robot which is a heart of industry 4.0 factory automation. Compared with modeling based research for recognizing motion of co-robot, there are few attempts to predict motion based on sensor data. Therefore, in this paper, an experimental environment for collecting current and inertia data in co-robot to detect the motion of the robot is built, and a motion prediction model based on the collected sensor data is proposed. The proposed method classifies the co-robot's motion commands into 9 types based on joint position and uses current and inertial sensor values to predict them by accumulated learning. The data used for accumulating learning is the sensor values that are collected when the co-robot operates with margin in input parameters of the motion commands. Through this, the model is constructed to predict not only the nine movements along the same path but also the movements along the similar path. As a result of learning using SVM, the accuracy, precision, and recall factors of the model were evaluated as 97% on average.


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Cite this article
[IEEE Style]
S. Yoo, D. Yoo, Y. Park, J. Lee, "Development of Joint-Based Motion Prediction Modelfor Home Co-Robot Using SVM," KIPS Transactions on Software and Data Engineering, vol. 8, no. 12, pp. 491-498, 2019. DOI: https://doi.org/10.3745/KTSDE.2019.8.12.491.

[ACM Style]
Sungyeob Yoo, Dong-Yeon Yoo, Ye-Seul Park, and Jung-Won Lee. 2019. Development of Joint-Based Motion Prediction Modelfor Home Co-Robot Using SVM. KIPS Transactions on Software and Data Engineering, 8, 12, (2019), 491-498. DOI: https://doi.org/10.3745/KTSDE.2019.8.12.491.