Research And Design Of Intelligent Device For Water Level Detection In Underground Pipeline Network

Nowadays,with the rapidly development of urbanization,the problem of urban waterlogging is becoming increasingly prominent,which threatens the safety of people's lives and property.With the development of Internet of things technology,the use of Internet of things technology to achieve real-time monitoring of the water level of the pipe network,the invisible underground pipe network water level can be monitored in real time,with high practical value.In this paper,the research of intelligent device for water level monitoring,using the technology of Internet of things and edge computing,we research and design an intelligent device for water level monitoring of pipe network.The device has real-time online,heartbeat maintenance,intelligent,local storage,accurate data,stable communication,low-power consumption,waterproof,terminal overflow real-time warning,identity security authentication,etc..The device is based on Narrow Band Internet of Things communication technology,with the input pressure sensor to measure the water level,using edge computing technology,when the current collected water level data changes greatly,the change is uploaded in real time,which not only greatly reduces the power waste caused by frequent data transmission,but also ensures that the collected data is consistent with the actual situation,that is to say,when the water level changes,It can be fed back to the cloud platform immediately when the data changes for a long time.When the data does not change for a long time,the heartbeat data is also designed to ensure the communication between the equipment and the platform,and the working status of the platform equipment is also reported,so as to facilitate the maintenance and repair.The system adopts a low-power design,considering from ultra low-power consumption components,low-power sensors,low-power communication mode,etc.,in combination with time division The system timing of the area,combined with the use of edge computing technology,truly achieve low power consumption.After system test and theoretical calculation,the service life of the device is up to more than 4 years,which greatly reduces the maintenance cost;when encountering signal difference or harsh environment,the data can not be sent normally,but can also be stored locally to avoid data loss;in addition,the equipment is also protected,when the equipment is overflowed,it can send overflowing warning in time,when the water level After the descent,it can send the overflow cancellation signal in time,so as to realize the intellectualization.This device communicates with cloud platform.On the basis of registration uniqueness,ECC with elliptic curve encryption is added in the device for security identity authentication to ensure network security and no illegal attack as well as the security of cloud platform and the attack of unknown devices.