Huang Wen-Tzeng, Chen Chin-Hsing, Chang Yuan-Jen, Chen You-Yin, Huang Jung-Lin, Yang Chang Ming, Yang Tzu Lin
Department of Computer Science and Information Engineering, Minghsin University of Science and Technology, Taiwan.
Annu Int Conf IEEE Eng Med Biol Soc. 2008;2008:546-9. doi: 10.1109/IEMBS.2008.4649211.
In this study, we propose a wearing system with four sensors, ECG (electrocardiogram), three-axis accelerometer, temperature, and tight-switch, applied for remote monitoring system in home-care. The sensors ECG, measured with wearable electrodes made of the steel textile to generate the real-time heart-rate estimator, tight-switch, made of the steel textile to check whether wearing person dresses properly, accelerometer, and temperature parameters are received via the ZigBee receiver within an exquisite belt. Since the movable textile electrodes will cause of unfixed contacts when the wearing person is in motion, making the heart-rate estimation much a sophisticated work, the tight-switch sensor and FIR (Filter Impulse Response) filter technology are applied here to get the more satisfiable heart-rate. The other two bio-sensors can detect the whether fall-down or not and normal body-temperature of this wearing person. Moreover, the ZigBee device with small size, low-power consumption, and high-reliability characteristics is designed to transmit the detected bio-information from these four sensors. Therefore, the vital system embedded with the capability of real-time heart-rate estimation and transmission makes it highly suitable for applications of remote healthcare and wellness.
在本研究中,我们提出了一种带有四个传感器的穿戴系统,即心电图(ECG)、三轴加速度计、温度传感器和紧身开关,用于家庭护理中的远程监测系统。心电图传感器采用由钢织物制成的可穿戴电极来测量,以生成实时心率估计值;紧身开关由钢织物制成,用于检查穿戴者是否穿戴正确;加速度计和温度参数通过一条精致腰带内的 ZigBee 接收器接收。由于当穿戴者运动时,可移动的织物电极会导致接触不稳定,使得心率估计成为一项复杂的工作,因此在此应用了紧身开关传感器和有限脉冲响应(FIR)滤波技术来获得更令人满意的心率。另外两个生物传感器可以检测该穿戴者是否跌倒以及正常体温。此外,设计具有小尺寸、低功耗和高可靠性特点的 ZigBee 设备,用于传输来自这四个传感器检测到的生物信息。因此,具备实时心率估计和传输能力的重要系统使其非常适合用于远程医疗保健和健康监测应用。