摘要
针对现有物联网紫外线灯消毒系统点对点的入网方式,不仅通信距离有限,功耗大,且需要为每台设备配置WiFi的缺点,设计了一种基于LoRa无线技术的自组网系统。系统使用ESP32为主控芯片,外加LoRa模块SX1262芯片和环境监测的传感组成,通过传感采集数据,由SX1262射频芯片发送到LoRa集中器,组成星型网络拓扑结构。利用集中器作为中继,由ESP32连接WiFi入网,通过MQTT或CoAP协议连接云服务器,实现数据的双向传输。通过LoRa无线技术的改造,本系统实现了紫外线消毒装置的自组网,物联网平台远程监控,无线控制。提高了设备通信的可靠性、便利性,大大降低了系统功耗。
Aiming at the shortcomings of the point-to-point network access method of the existing Internet of Things ultraviolet lamp disinfection system,such as limited communication distance,high power consumption,and the need to configure WiFi for each device,an network system based on LoRa wireless technology was designed.The system uses ESP32 as the main control chip,coupled with the LoRa module SX1262 chip and environmental monitoring sensors.Data is collected through sensors,and sent to the LoRa concentrator by the SX1262 RF chip,forming a star network topology.Using a concentrator as a relay,connect to the WiFi network through ESP32,and connect to the cloud server through MQTT or CoAP protocols to achieve two-way data transmission.Through the transformation of LoRa wireless technology,this system has realized the ad hoc network of ultraviolet disinfection devices,remote monitoring of the Internet of Things platform,and wireless control.It improves the reliability and convenience of device communication and greatly reduces system power consumption.
作者
黄海燕
陈汇泽
Huang Haiyan;Chen Huize(Guangzhou City University of Technology,Guangzhou,China)
出处
《科学技术创新》
2023年第8期68-71,共4页
Scientific and Technological Innovation
基金
广东省科技创新战略专项资金pdjh2022b0760。
