Mr. Won Heum Han Profile

Won Heum Han

at Hana Academy Seoul

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Proceedings Article | 26 May 2011 Paper

Anti-sleepiness sensor systems for sober mental condition

Won Heum Han, Hyung Sik Jung, Hyo Gun Lee

Proceedings Volume 8025, 80250L (2011) https://doi.org/10.1117/12.883939

KEYWORDS: Sensors, Infrared sensors, Blood, Cameras, Eye, Imaging systems, Glasses, Ear, Magnetic sensors, Near infrared

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The anti-sleepiness sensor systems have been devised for soldier's sober mental condition. These systems judge whether the soldier is sleepy or not, on one hand by monitoring open or closed eyes, on the other hand by measuring the heart blood beat and rate on the carotid of human's neck. They reasonably adopt one of the following methods such as optical, mechanical, magnetic impedance and piezoelectric sensor and so on. In this paper, the characteristics of those sensors are compared to one another and subsequently the suitable ones are proposed from the viewpoint of measurement and judgment reliability.; as a sensor to directly monitor the soldier's open/closed eyes the IR (Infrared) sensor is recommended, which is equipped on glasses (so called the anti-sleepiness glasses), and as a sensor to measure the heart beat and rate of blood vein, the piezoelectric PMN-PT crystal sensor mounted on a necklace turns out to be the most suitable owing to its high sensitivity (i.e. the anti-sleepiness necklace). These systems and relevant ideas are also applicable to the civilian usage, namely to the student preparing an examination as well as to the car-driver for safety.

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