PROBLEM TO BE SOLVED: To rapidly transmit an excretion treatment to a caring person by not only performing distinction among feces, urine, and fart but also performing the determination of diarrhea, soft feces, and hard feces concerning feces and the detection of even a urine leakage and feces leakage.SOLUTION: An odor sensor capable of detecting ammonia, hydrogen sulfide, and amines and a humidity sensor are arranged under a sheet close to a portion between both thighs in a space enclosed by the bedding of a cared person. A suction fan forcibly circulates air through the sheet. The kind of excretion and a leakage from a diaper are determined based on information on the change amount and duration of the intensity detected by the odor sensor and the change amount and duration of humidity in the humidity sensor. Then, the emergency level of an excretion treatment is reported to a caring person.COPYRIGHT: (C)2014,JPO&INPIT【課題】本発明の課題は、大便、小便、屁を区別できるだけでなく、大便の中でも下痢、軟便、硬質便の判定と、尿漏れや便漏れも検出し、速やかに介護者に排泄処置を伝達する。【解決手段】被介護者の布団に囲まれた空間で両太股の間の近傍のシーツの下に、アンモニアや硫化水素やアミン類を検出できる臭いセンサと湿度センサを設置し、シーツを通して吸気ファンで空気を強制循環させ、検出した臭いセンサの強さの変化量と持続時間と、湿度センサの湿度の変化量と持続時間の情報から、排泄物の種類とオムツ漏れを判断し、介護者に排泄処置の緊急度を通知する。【選択図】図1