IEMEK Journal of Embedded Systems and Applications (대한임베디드공학회논문지)

Institute of Embedded Engineering of Korea (대한임베디드공학회)
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Filtering Time Optimization in Vehicle Electronic Control Systems Using a Non-Contact Magnetic Sensor and Dual Buffer Structure

차량용 전자 제어 시스템에서 비접촉식 자기장 센서와 이중 버퍼 구조를 이용한 필터링 시간 최적화

  • Minjung Kim (Kyungpook National University) ;
  • Daejin Park (Kyungpook National University)
  • 김민중 ;
  • 박대진
  • Received : 2024.07.10
  • Accepted : 2024.08.13
  • Published : 2024.08.31
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Abstract

The automotive industry is transitioning from traditional internal combustion engines to systems powered by motors, batteries, and various electronic control units. Central to this shift is the micro-controller unit, which processes data from various sensors for real-time environmental awareness and control. This paper explores using non-contact magnetic sensors for sensing vehicle inclination as part of a digital twin implementation. Unlike optical or contact sensors, non-contact magnetic sensors offer robust performance in challenging environments, providing consistent and reliable data under varying conditions. To optimize real-time data processing, we propose a double buffer structure to enhance digital signal processing performance in embedded systems. Experiments using a custom sensor-integrated board demonstrate that the double buffer structure with direct memory access-enabled serial peripheral interface significantly reduces data processing time and improves noise reduction filtering. Our results show that the proposed system can greatly enhance the reliability and accuracy of sensor data, crucial for real-time vehicle control systems. In particular, by using the double buffer structure proposed in this paper, it was possible to secure 8.27 times more data compared to raw data, despite performing additional filtering. The techniques outlined have potential applications in various fields, offering enhanced monitoring and optimization capabilities, thus paving the way for more advanced and efficient vehicle control technologies.

Keywords

Acknowledgement

본 논문은 교육부의 재원으로 한국연구재단(NRF-2018R1A6A1A03025109, 10%, NRF-2022R1I1A3069260, 10%)의 지원을 받아 수행된 연구임 본 논문은 과학기술정보통신부의 재원으로 정보통신기획평가원 (No. 2021-0-00944, 30%, No. 2022-0-01170, 20%, No. RS-2023-00228970, 30%)의 지원을 받아 수행된 연구임

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