연세대학교 산학협력단;민혜정;INDUSTY-ACADEMIC COOPERATION FOUNDATION,YONSEI UNVERITY;MIN, Hea Jung
发明人:
YOU, Sun Kook,유선국
申请号：
KRKR2018/010854
公开号：
WO2020/054893A1
申请日:
2018.09.14
申请国别(地区):
KR
年份:
2020
代理人:
摘要：
The present invention relates to a biosignal-based pain level classification apparatus and method for classifying a pain level by using electrocardiogram (ECG) and photoplethysmograph (PPG) measurement devices and, more specifically, to a biosignal-based pain level classification apparatus and method for extracting, from an ECG or PPG signal, energy and a zero-crossing rate, which are main features of the ECG or PPG signal, according to a decrease in blood flow rate and frequent pulse when the sympathetic nervous system is excited due to a pain stimulus and normalizing the extracted energy and zero-crossing rate, and displaying a pain level index through a Sigmoid function from a value calculated by weighting the normalized energy and zero-crossing rate, thereby enabling simple and highly accurate pain level classification. The present invention relates to a biosignal-based pain level classification apparatus in which a pulse wave (PPG) or ECG signal detected from a PPG sensor unit or an ECG sensor unit is converted into a digital signal through an A/D conversion unit so as to be transmitted to a computation processing unit, which detects a pain level index from the received PPG or ECG signal, wherein the computation processing unit detects energy and a zero-crossing rate from the PPG or ECG signal and normalizes same, obtains a Sigmoid function of the energy and a Sigmoid function of the zero-crossing rate, and adds a value obtained by multiplying the Sigmoid function of the energy by a preset energy weight and a value obtained by multiplying the Sigmoid function of the zero-crossing rate by a preset zero-crossing rate weight, thereby outputting the addition result as the pain level index.La présente invention concerne un appareil de classification, sur la base d'un signal biologique, du niveau de douleur et un procédé de classification d'un niveau de douleur utilisant des dispositifs d'électrocardiographie (ECG) et de photopléthysmographie (PPG) et, plus spécifiqu
