Design And Implementation Of Pavement Waterlogging Monitoring And Early Warning System Based On Multi-technology

With the emergence of global warming and extreme weather,the increase of rainfall frequency in summer,the increase of rainfall,and the lag of urban underground pipeline construction make the problem of urban waterlogging become more and more serious.In recent years,as a result of the increase in the number of vehicles in the city,there have been repeated incidents of wading out of vehicles as a result of stagnant roads and unnecessary casualties and property damage.The traditional early warning method is to install the data acquisition equipment on the roadside,use the LED display to display the early warning information in situ,and send the early warning information to the relevant personnel in the way of GSM short message.This method first needs to build a large number of roadside equipment,followed by the real-time of early warning can not be guaranteed.In view of this situation,this paper puts forward a multitechnology monitoring and early warning system for pavement water accumulation,which realizes the real-time and accuracy of water accumulation warning.The main work of this thesis is as follows:(1)The communication between vehicle and car,vehicle and roadside unit,roadside unit and server based on ZigBee in real environment is designed and constructed,and the connection test and communication test are carried out to realize the communication part of the immediate warning system of pavement water accumulation.(2)The IoT simulation scene based on ZigBee communication is built by using OMNeT++ simulation platform,and the complete immediate warning process of pavement water accumulation is simulated.(3)The Index smoothing prediction method is used to deal with the water accumulation data collected by roadside receiving units,and the prediction of water accumulation in the Monitoring section is completed on the basis of improving the prediction accuracy.(4)Android is used as the front end and PC is used as the back-end server to establish a comprehensive early warning system for pavement seepage.At the same time,an interactive pavement water early warning system based on client/server architecture is designed and implemented,and an interactive mechanism of user escalation is proposed to improve the coverage of early warning.Through the design of the early warning system of pavement water accumulation,this paper realizes the prediction and early warning and improves the accuracy of early warning,and finally the system passes the function test,verifies the reliability of the scheme,and shows that the system has a certain application prospect.