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使用NB-IoT蜂传感器网络监控和控制智能城市排水系统

Priit Roosipuu¹, Ivar Annus², Alar Kuusik²

¹Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia

Water science and technology : a journal of the International Association on Water Pollution Research

|July 31, 2023

概括

这项研究评估了用于地下城市排水监测的窄带物联网 (NB-IoT) 信号质量. 最佳的位置和信号强度对于可靠的通信和有效的洪水风险管理至关重要.

科学领域:

环境工程环境工程
无线通信系统无线通信系统
城市基础设施管理城市基础设施管理

背景情况:

智能基础设施的发展需要低成本,低能耗的地下传感器.
恶劣的信号传播条件,如地下环境,对无线通信构成挑战.
窄带物联网 (NB-IoT) 是解决这些挑战的关键技术.

研究的目的:

评估城市排水系统的NB-IoT蜂传感器网络的现实信号质量.
分析NB-IoT覆盖面对降低洪水风险潜力的影响.
为了确定地下应用的最佳NB-IoT发射器放置和信号强度要求.

主要方法:

在爱沙尼亚的Rakvere进行了测量活动,以评估NB-IoT网络覆盖率和地下信号质量.
分析信号测量,包括NB-RSRP,以确定链接预算要求.
基于NB-IoT信号质量的模拟洪水风险降低潜力.

主要成果:

最佳的NB-IoT发射器放置在塑料人洞中的位置在盖子以下0.5米.
需要在地面的NB-RSRP为-104dBm或更好,以获得最佳的能源消耗.
除了信号强度不足的地区,洪水风险降低的影响最小 (主要洪水节点增加3.9%,平均洪水持续时间增加4.2%).

结论:

在城市排水系统中,NB-IoT为地下传感提供了可行的解决方案.
仔细考虑发射器位置和信号强度对于有效的NB-IoT部署至关重要.
开发的控制系统表现出灵活性,对洪水风险管理的影响很小,即使有信号限制.

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