The present invention relates to an apparatus for detecting an attention level of a driver and a method thereof and, more specifically, to an apparatus for detecting an attention level of a driver and a method thereof, whrein the apparatus is capable of acquiring a micro current (for example, an action current due to the contraction of the heart) flowing in the body of a driver through electrodes provided in a vehicle, measuring the electrocardiogram (or photoplethysmography (PPG)) of the driver through the filtering of the acquired micro current, calculating a standard deviation of NN interval (SDNN) which is an analysis index quantifying attention levels based on the measured electrocardiogram, and detecting an attention level of the driver based on the calculated SDNN, thereby accurately detecting the attention level of the driver. To achieve the purpose, the apparatus can include: an electrocardiogram sensor measuring the electrocardiogram of the driver; and a control part calculating a standard deviation of NN interval (SDNN) quantifying the attention level of the driver with the electrocardiogram measured by the electrocardiogram sensor, and then detecting the attention level of the driver based on the calculated SDNN.
본 발명은 운전자의 집중도 검출 장치 및 그 방법에 관한 것으로, 차량에 구비된 전극(Electrodes)을 통해 운전자의 신체에 흐르는 미세전류(일례로, 심장의 수축에 따른 활동전류)를 획득하고, 상기 획득한 미세전류를 필터링하여 운전자의 심전도(또는 PPG(Photoplethysmography)를 측정하며, 상기 측정한 심전도에 기초하여 집중도를 정량화한 분석지표인 SDNN(Standard deviation of NN interval)을 산출하고, 상기 산출한 SDNN에 기초하여 운전자의 집중도를 검출함으로써, 운전자의 집중도를 정확도 높게 검출할 수 있는 운전자의 집중도 검출 장치 및 그 방법을 제공하고자 한다. 이를 위하여, 본 발명은 운전자의 심전도를 측정하는 심전도센서; 및 상기 심전도센서에 의해 측정된 심전도를 이용하여 상기 운전자의 집중도를 정량화한 SDNN(Standard deviation of NN interval)을 산출하고, 상기 산출한 SDNN에 기초하여 운전자의 집중도를 검출하는 제어부를 포함할 수 있다.
APPARATUS FOR DETECTING ATTENTION LEVEL OF DRIVER AND METHOD THEREOF
운전자의 집중도 검출 장치 및 그 방법
2022-04-20
Patent
Electronic Resource
Korean
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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