Ultra-Low Power Wearable Infant Sleep Position Sensor.Numerous wearable sensors have been developed for a variety of needs in medical/healthcare/wellness/sports applications, but there are still doubts about their usefulness due to uncomfortable fit or frequent battery charging. 
Ultra-Low Power Wearable Infant Sleep Position Sensor
We developed a method that can significantly reduce the power consumption by introducing a signal repeater and a special switch that provides power only when needed. 
signal repeater
We developed a method that can significantly reduce the power consumption by introducing a signal repeater and a special switch that provides power only when needed. 
special switch
In particular, ultra-low power operation enables the use of paper battery to achieve a very thin and flexible form factor. 
paper battery