物联网和光纤传感技术相融合的独居老人监护系统研究

Research on the monitoring system of the elderly living alone integrated with the Internet of things and optical fiber sensing technology

针对独居老人如何得到实时监护,保障其生命安全问题,设计物联网和光纤传感技术相融合的独居老人监护系统,系统感知层通过光纤传感器检测模块采用不同检测点,监测独居老人生活范围中图像、声音、气体数据,这些数据通过网络层中ZigBee通信协议传输至应用层中的监控预警模块,监控预警模块对比检测数据和独居老人正常活动下的数据,判定老人出现异常的可能性,若老人出现异常情况,便立即自动报警并将异常数据传输给老人亲属;通过卡尔曼滤波算法对光纤传感器数据进行去噪,然后采用测量方差自适应方法融合传感器数据,获取独居老人的监护状态估计值。研究结果表明,该系统对独居老人相关情况的检测精度较高,能够较好实现监护。

This paper makes an in-depth study on how elderly living alone can get real-time monitoring to ensure their life safety.The integration of IOT and optical fiber sensing technology of elderly living alone monitoring system is designed.The sensing layer of the system uses different detection points through fiber optic sensor detection module to detect image,sound,and gas data in the living area of elderly living alone.These data are transmitted to the monitoring and early warning module in the application layer through ZigBee communication protocol in network layer.The data and data under the normal activities of the elderly living alone determine the possibility of an abnormality of elderly.If an abnormal situation occurs,the alarm will be automatically issued immediately and the abnormal data will be transmitted to the relatives of the elderly.Then,the sensor variance adaptive method is used to fuse the sensor data to obtain the monitoring status of the elderly living alone.The results show that the system can detect the elderly living alone with high accuracy and can monitor them well.