Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The Effect of Communication Distance and Number of Peripheral on Data Error Rate When Transmitting Medical Data Based on Bluetooth Low Energy

저 전력 블루투스 기반으로 의료데이터 전송 시 통신 거리와 연동 장치의 수가 데이터 손실률에 미치는 영향

  • Park, Young-Sang (Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation) ;
  • Son, ByeongJin (Daegu Catholic University) ;
  • Son, Jaebum (Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation) ;
  • Lee, Hoyul (Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation) ;
  • Jeong, Yoosoo (Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation) ;
  • Song, Chanho (Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation) ;
  • Jung, Euisung (Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation)
  • 박영상 ((재)대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터) ;
  • 손병진 (대구가톨릭대학교) ;
  • 손재범 ((재)대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터) ;
  • 이호열 ((재)대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터) ;
  • 정유수 ((재)대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터) ;
  • 송찬호 ((재)대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터) ;
  • 정의성 ((재)대구경북첨단의료산업진흥재단 첨단의료기기개발지원센터)
  • Received : 2021.10.11
  • Accepted : 2021.12.22
  • Published : 2021.12.31
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Abstract

Recently, the market for personal health care and medical devices based on Bluetooth Low Energy(BLE) has grown rapidly. BLE is being used in various medical data communication devices based on low power consumption and universal compatibility. However, since data errors occurring in the transmission of medical data can lead to medical accidents, it is necessary to analyze the causes of errors and study methods to reduce data error. In this paper, the minimum communication speed to be used in medical devices was set to at least 800 byte/sec based on the wireless electrocardiography regulations of the Ministry of Food and Drug Safety. And the data loss rate was tested when data was transmitted at a speed higher than 800 byte/sec. The factors that cause communication data error were classified, and the relationship between each factor and the data error rate was analyzed through experiments. When there were two or more activated peripherals connected to the central, data error occurred due to channel hopping and bottleneck, and the data error rate increased in proportion to the communication distance and the number of activated peripherals. Through this experiment, when the BLE is used in a medical device that intermittently transmits biosignal data, the risk of a medical accident is predicted to be low if the number of peripherals is 3 or less. But, it was determined that BLE would not be suitable for the development of a biosignal measuring device that must be continuously transmitted in real time, such as an electrocardiogram.

Keywords

Acknowledgement

본 연구는 산업통상자원부와 한국산업기술진흥원의 "스마트특성화 기반구축사업(P0017662 고기능인체결합 의료기기 산업육성 플랫폼 구축사업)"의 지원을 받아 수행된 연구결과임.

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