多点圧力センサ内蔵型風呂マットを用いた浴室洗い場事故検知システムの開発

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タイトル別名
  • Development of a New Accident Detection System in Washing Place of Bathroom using Bath Mat with Multipoint Pressure Sensor
  • タテン アツリョク センサ ナイゾウガタ ブロ マット オ モチイタ ヨクシツ アライ ジョウ ジコ ケンチ システム ノ カイハツ

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Recently, the freak accidents in home have been increased and they are caused by the asphyxiation, drowning, falling, fire, and toxicosis. Especially in bathroom, the accident frequently arise and thus the healthcare monitoring and the accident detection system can be useful for attainment of safe and untroubled daily life. While some monitoring systems for moving state using infrared ray and ultrasonic wave were already developed, these methods distinguish only whether or not a bather is moving. Also, detailed motion analysis using CCD camera has the problem of privacy for the practical use. From these viewpoints, we designed the monitoring system for the electrocardiogram and respiration signal using bathtub-installed electrodes, showing its usefulness for the healthcare and the drowning alarm during taking a bath. However, the range over which this method is possible is limited in the bathtub and thus the detection in washing place are impossible. To solve this drawback, we developed a new system capable of detecting the accident in the washing place together with the pulse and respiration rate using a bath mat type multipoint pressure sensor located in washing place of bathroom. From the results of the accuracy evaluation in 20 healthy subjects, it is demonstrated that the present system can accurately detect the accident [60/60, 100%]and show the good correlation between the pulse [r=0.99] and respiration [r=0.95]obtained from the system and those obtained from the conventional methods using the sensors attached to the body surface.

収録刊行物

  • 生体医工学

    生体医工学 51 (4), 268-275, 2013

    公益社団法人 日本生体医工学会

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