基于NB-IoT的智慧井盖监测系统设计与实现

针对现有城市井盖因数量多且管理部门管理不善而造成的安全问题，设计了一种以NB-IoT低速率窄带宽物联网技术为核心的智慧井盖监测系统。应用低功耗芯片STM32采集井盖的压力和位移以及窨井下的甲烷浓度和水位，通过NB-IoT模块上传至服务器，实现采集终端与服务器之间低功耗的信息交互；结合智能井盖管理系统和手机APP软件设计，可直观地掌握井盖的分布状况和在线状态。测试结果表明，该系统工作稳定且数据传输可靠，减轻了管理人员和检修人员的工作压力，并且在一定程度上预防了安全事故的发生，实现了对城市井盖的智能化管理，为智慧市政以及大数据分析提供技术基础。

Design and Implementation of Intelligent Manhole Cover Monitoring System Based on NB-IoT

In view of the safety problems caused by the large number of existing city manhole covers and poor management of management departments, this paper designs a smart manhole cover monitoring system with NB-IoT low-rate and narrow-bandwidth Internet of Things technology as the core.In this paper, the low-power chip STM32 is used to collect the pressure and displacement of the manhole cover and the methane concentration and water level under the wellbore, and upload it to the server through the NB-IoT module to realize the low-power information exchange between the collection terminal and the server; combined with the intelligent manhole cover management system And mobile APP software design, can intuitively grasp the distribution of the manhole cover and online status.The test results show that the system works stably and the data transmission is reliable, which reduces the labor pressure of managers and maintenance personnel, and prevents the occurrence of safety accidents to a certain extent, realizes the intelligent management of urban manhole covers, and provides the technical foundation for smart municipality and big data analysis.