基于物联网的环境监测系统设计研究

Design and Research of Environmental Monitoring System Based on Internet of Things

随着社会的发展,人们的生活水平的不断提高,对生态环境的要求也越来越高。功耗低、传输距离长的无线物联网通讯技术应时而生,为传统环保监测提供了一种全新的解决方案。利用LoRa与NB-IoT技术,设计了一种功耗低、传输距离长的无线物联网环境监控系统,利用LoRa与NB-IoT混和组网方案,可填补NBIoT服务年费昂贵及Lo Ra不能通过运营商网络传送数据的缺陷。传感器节点与汇聚节点应用LoRa控制模块实现长距离自组网通讯;网关节点选用LoRa转NB-IoT方案,将LoRa自组网内数据通过运营商网络送往云端,然后在云端实现实时动态显示和查询。检测结果显示,本文所设计的系统整体性能较平稳,可将获得的PM2.5浓度值、环境温度、环境湿度等信息数据存储和实时显示,然后同步上传至云端,具有较高的实际应用价值。

With the development of society and the improvement of People's living standard,the demand for ecological environment is becoming higher and higher.The birth of wireless Internet of Things communication technology with low power consumption and long transmission distance provides a new solution for traditional environmental monitoring.Based on LoRa and NB-IoT technology,this paper designs a wireless IoT environment monitoring system with low power consumption and long transmission distance.According to the mixed networking scheme of LoRa and NB-IoT,it can fill the defects of expensive NB-IoT service and LoRa's inability to transmit data through the operator's network.The sensor node and sink node use LoRa control module to complete long-distance ad hoc network communication;The gateway node selects the LoRa to NB-IoT scheme,sends the data in the LoRa ad hoc network to the cloud through the operator network,and then completes real-time dynamic display and query in the cloud.The test results show that the overall performance of the system designed in this paper is relatively stable.The obtained PM2.5 concentration value,ambient temperature,ambient humidity and other information data can be stored and displayed in real time,and then uploaded to the cloud synchronously,which has strong practical application value.