抄録
We developed new types of sensing systems for very early-stage diagnostics of human diseases and for monitoring human movements for nursery cares. The first is a portable gas sensor system having high sensitivity and gas-selectivity. It allows monitoring hydrogen and other burnable gases in breath gas in a short time interval of less than 3 min. From hundreds of breath gas samples of healthy volunteers, we found hydrogen content depended on several factors; age, foods, passage, and exercise habit. The second system is a large sized textile that gives electric signals of distributed force applied to the textile surface, and also of tensile strain of the textile, allowing us monitoring human movements. We started the use of the sensing textile in a shape of bed sheets in a care-house for elder people for the purpose of alarming bedsore which is known to occur by consistently applied pressure to human body.
