摘要
针对养老院老人的室内监护,分析了传感技术的优点和应用场合,采用成熟的ZigBee技术构建无线传感器网络,来获取老人在室内定位的信息。选取性能可靠的传感器模块采集卧室内环境值,最终结合用G语言编写的上位机,设计了一种基于传感技术的老人监护系统。系统中的协调器将从终端设备获取的接收信号强度指示(RSSI)值传输至STM32开发板上并通过改进算法处理。传感器模块采集并处理的环境值也传输至开发板,开发板将数据通过Wi Fi模块和路由器上传至上位机。实验表明:设计的系统可实现老人部分室内的生活信息在上位机准确显示,并可控制下位机以改善室内环境,起到一定看护作用。
In view of indoor monitoring of the elderly in nursing homes,analyze on advantages and applications of sensor technology,and use the ZigBee technology to construct wireless sensor networks( WSNs) to gain the information of the indoor localization of the elderly. Selecting some reliable sensor modules to collect the values of the bedroom environment,and combined with upper personal computer( PC) compiled with G language,an elderly monitoring system based on sensing technology is designed. The coordinator in the system transmits the received signal strength indication( RSSI) value acquired from the terminal device to the STM32 development board,and processed through an improved algorithm. The environmental parameter values collected and processed by the sensor modules are transmitted to the development board,too. The development board uploads the data to the upper PC through the Wi Fi module and router. Experiments show that the system can display part of the life information of the elderly on the upper PC,and the upper PC can control the lower PC to improve the indoor environment. This system plays a certain role in elderly nursing.
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