Aiming at the problems of the traditional elderly monitoring and nursing system, such as high power consumption, poor realtime performance and low data transmission efficiency, an intelligent wireless sensor network system based on lowpower wide area network is proposed. In this system, the environmental and physical data information is collected by relying on STM32 processor and sensor, and then LoRa technology is used to send the collected data to the gateway through SX1278 module, and then the data is uploaded to the cloud server through the gateway. Then, the processed data is displayed to users through the cloud server to realize realtime monitoring of the physical health status of the elderly in the community. The node communication adaptive mechanism optimization algorithm is used to realize stable transmission of the health data of the elderly, so as to realize the monitoring effect of low power consumption, low delay and high data transmission rate. Summarizing aged care network data with time delay is very sensitive. In order to improve data transfer rate (DTR) and reduce the data transmission delay (DTD),this paper puts forward an optimized network traffic adaptive communication mechanism to improve the DTR and DTD. Other functions in the node energy consumption and network data transmission has been improved, and realtime system can stably test the related signs of the elderly health.
张金润, 胡森荣, 洪炎.基于LoRa技术的便携式健康监测系统设计[J].重庆工商大学学报（自然科学版）,2022,39(1):56-61
ZHANG Jin-run, HU Sen-rong, HONG Yan. Design of Portable Health Monitoring System Based on LoRa Technology[J]. Journal of Chongqing Technology and Business University(Natural Science Edition）,2022,39(1):56-61