居家智慧养老监测系统的设计  

Design of home intelligent elderly care monitoring system

作　　者：张震 郭晓金[1] 刘煌 ZHANG Zhen;GUO Xiaojin;LIU Huang(School of Information and Communication Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学信息与通信工程学院,重庆400065

出　　处：《现代电子技术》2022年第18期171-176,共6页Modern Electronics Technique

基　　金：国家自然科学基金项目资助(61671094);重庆市科委项目(CSTC2015JCYJA40032)。

摘　　要：为了提高养老服务效率,解决传统养老方式难以提供有效需求的问题,文中设计一种对老年人居家环境质量监测与行为异常检测的系统。该系统通过WiFi技术组建网络实时采集如温湿度、可燃气体浓度、粉尘浓度与甲醛浓度等居家环境数据,并发送给STM32主控制器;然后通过NB-IoT无线传输到后台上位机对数据进行分析处理。一旦数据出现异常,蜂鸣器就会发出警报使人能够及时察觉。另外,在检测是否有摔倒行为的同时对老人所处地理位置信息进行采集,若出现异常,则触发GSM模块工作,发送短信向老人亲属或者监护人求助。在采集摔倒信息时,为减小环境对采集数据的影响,采用卡尔曼滤波算法对数据进行优化处理,以提高数据采集的精度,减少对老年人摔倒检测现象的误判。系统功能测试结果表明,所设计的居家智慧养老监测系统组网灵活,准确性与可靠性较高。A system for monitoring the quality of the home environment of the elderly and detecting abnormal behaviors is designed to improve the efficiency of elderly care services and solve the problem that traditional elderly care methods are difficult to provide effective demand. The system can collect home environment data(including temperature and humidity,combustible gas concentration,dust concentration,formaldehyde concentration,etc.)in real time through network constructed by WIFI technology and send it to the STM32 main controller. The data is transmitted wirelessly to the background host computer through Nb-IoT to perform data analysis and processing. Once the data is abnormal,the buzzer will give an alarm to make people detect it in time. The geographic location information of the elderly can be collected while detecting whether there is falling behavior,and if there is an abnormality,the GSM module can be triggered to work,so as to send a text message to the relatives or guardians of the elderly for help. In order to reduce the impact of the environment on the collected data in collecting the falling information,the Kalman filter algorithm is used to optimize the data to improve the accuracy of data collection and reduce the misjudgment of falling detection in the elderly. The system function testing results show that the designed home intelligent elderly care system has the advantages of flexible networking,high accuracy,and reliability.

关 键 词：智慧养老 居家监测 系统设计 摔倒检测 远程监控 卡尔曼滤波算法 

分 类 号：TN931.3-34[电子电信—信号与信息处理]