Patient Posture Monitoring System Based on Flexible Sensors.
Patient Posture Monitoring System Based on Flexible Sensors.
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DOI：
10.3390/s17030584
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发表时间：
2017-03-13
期刊：
影响因子：
--
通讯作者：
Kim D
中科院分区：
文献类型：
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作者：
Cha Y;Nam K;Kim D
使用视觉摄像头监控患者可能会导致隐私侵犯问题。在本文中，我们提出了一种基于带有不显眼传感器的患者布料的患者位置监测系统。我们使用基于聚偏二氟乙烯的柔性传感器，聚偏二氟乙烯是一种柔性压电材料。柔性传感器被插入到松散的病人布料靠近膝盖和臀部的部分。当布料中的膝盖和臀部弯曲时，我们测量由压电效应产生的传感器发出的电信号。测量的传感器输出通过蓝牙传输到计算机。我们使用定制程序通过基于规则的算法和传感器输出来检测患者的位置。可检测的姿势基于床内和床周围的六种人体运动。所提出的系统可以检测三名患者的患者位置，成功率超过 88%。
Monitoring patients using vision cameras can cause privacy intrusion problems. In this paper, we propose a patient position monitoring system based on a patient cloth with unobtrusive sensors. We use flexible sensors based on polyvinylidene fluoride, which is a flexible piezoelectric material. The flexible sensors are inserted into parts close to the knee and hip of the loose patient cloth. We measure electrical signals from the sensors caused by the piezoelectric effect when the knee and hip in the cloth are bent. The measured sensor outputs are transferred to a computer via Bluetooth. We use a custom-made program to detect the position of the patient through a rule-based algorithm and the sensor outputs. The detectable postures are based on six human motions in and around a bed. The proposed system can detect the patient positions with a success rate over 88 percent for three patients.