A New Ultrasonic Oscillosensor and Its Application in Biological Information Measurement System Aided by Fuzzy Theory
A New Ultrasonic Oscillosensor and Its Application in Biological Information Measurement System Aided by Fuzzy Theory
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新型超声波示波器及其在模糊理论辅助生物信息测量系统中的应用
DOI：
10.1093/ietisy/e90-d.11.1864
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Y. Hata
中科院分区：
文献类型：
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作者：
Y. Kamozaki;T. Sawayama;K. Taniguchi;Syoji Kobashi;K. Kondo;Y. Hata
本文介绍了一种新型超声波传感器及其在生物信息测量系统中的应用。该超声波传感器具有一个装满水的26 mm（直径）× 20 mm（高度）的圆柱形水箱和一个超声波探头。它通过获取水面反射的回波信号来检测目标物体的振动。该传感器可以通过将其放置在床架下来非侵入性地检测患者的振动。我们提出了一个识别系统的人在床上。使用这个传感器，我们可以确定病人是否在床上。此外，我们提出了一个心率监测系统，使用这种传感器。当我们的系统在四名志愿者身上进行测试时，我们成功地检测到了与使用心电图仪的情况相当的心率。模糊逻辑在识别中起主要作用。因此，该系统可以使用无约束和紧凑的设备无创地确定患者是否在床上以及他们的心率。
In this paper, we describe a new ultrasonic oscillosensor and its application in a biological information measurement system. This ultrasonic sensor has a cylindrical tank of 26 mm (diameter) × 20 mm (height) filled with water and an ultrasonic probe. It detects the vibration of the target object by obtaining echo signals reflected from the water surface. This sensor can noninvasively detect the vibration of a patient by placing it under a bed frame. We propose a recognition system for humans in bed. Using this sensor, we could determine whether or not a patient is in the bed. Moreover, we propose a heart rate monitoring system using this sensor. When our system was tested on four volunteers, we successfully detected a heart rate comparable to that in the case of using an electrocardiograph. Fuzzy logic plays a primary role in the recognition. Consequently, this system can noninvasively determine whether a patient is in the bed as well as their heart rate using a constraint-free and compact device.