The Journal of Korea Robotics Society (로봇학회논문지)

Korea Robotics Society (한국로봇학회)
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Optimized Network Pruning Method for Li-ion Batteries State-of-charge Estimation on Robot Embedded System

로봇 임베디드 시스템에서 리튬이온 배터리 잔량 추정을 위한 신경망 프루닝 최적화 기법

  • Received : 2022.10.28
  • Accepted : 2022.11.18
  • Published : 2023.02.28
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Abstract

Lithium-ion batteries are actively used in various industrial sites such as field robots, drones, and electric vehicles due to their high energy efficiency, light weight, long life span, and low self-discharge rate. When using a lithium-ion battery in a field, it is important to accurately estimate the SoC (State of Charge) of batteries to prevent damage. In recent years, SoC estimation using data-based artificial neural networks has been in the spotlight, but it has been difficult to deploy in the embedded board environment at the actual site because the computation is heavy and complex. To solve this problem, neural network lightening technologies such as network pruning have recently attracted attention. When pruning a neural network, the performance varies depending on which layer and how much pruning is performed. In this paper, we introduce an optimized pruning technique by improving the existing pruning method, and perform a comparative experiment to analyze the results.

Keywords

Acknowledgement

This work has been supported by the Unmanned Swarm CPS Research Laboratory Program of Defense Acquisition Program Administration and Agency for Defense Development (UD220005VD)

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