Research On The Leakage Control Technology Of Urban Water Supply System Based On Internet Of Things

As a part of water delivery facility,water supply pipe network play a crucial role in the construction of smart city and the maintenance of social development.leakage is a common phenomenon in urban water supply system,and it is also a difficult problem faced by the society.There are many factors to affect the water loss.The high pressure of water supply network and the aging of pipeline materials are considered as main reason.How to control effectively the leakage of pipe network has been focused on closely by practitioners and researchers.Domestic and foreign employees have also invested a lot of manpower and material resources.However,the leakage of the pipeline network has not been improved.leakage control is the technical problem in the management of urban water supply network.This paper combines the advanced technologies of Internet of Things and propose a leakage control system of urban water supply network based on the Internet of Things and cloud computing,in an attempt to overcome the inadequacy of data monitoring and processing capabilities of SCADA system,which can provide beneficial exploration for scientific decision-making management of leakage monitoring of water supply network.The main research content were as follows:(1)The factors affecting the leakage of urban water supply network were analyzed comprehensively.The leakage control technology of urban water supply network was summarized in detail.The advantages and disadvantages of the all existing methods of water leakage control were analyzed in order to provide a comprehensive review of management of water leakage.(2)The concept,theoretical system and application status of the Internet of Things were introduced in detail.And the key technology of the Internet of Things was also studied.It was proposed that the Internet of Things technology could be well applied in the water supply system by combining with the leakage control technology to complete the leakage control of the pipe network.(3)In order to solve the problems of urban water supply pipe network,such as inconvenient supervision,weak control ability for technology,serious leakage and so on,the leakage control system of urban water supply network based on Internet of Things and cloud computing was designed.The system used the architecture of Internet of Things,the OneNet cloud platform for data processing platform,to achieve functions including massive data processing,the service of real-time monitoring and management,the service of intelligent scheduling,the interface of application system.In addition,the technology of ZigBee wireless sensor network and RFID of perception layer and the transmission technology of network layer were analyzed.The designed method of data processing platform in application layer was studied.The method of pressure trend surface analysis and the technology of leakage control of pressure management based on genetic algorithm were given.(4)Taking the urban water supply network in a certain northern area as the research object,it described in detail how to build a water supply pipe network leakage control system based on the Internet of Things and cloud computing for the region,and then established a hydraulic model of the pipe network to optimize the number,location and opening degree of valves by the technology of leakage control of pressure management based on genetic algorithm.Through the study,the main conclusions were as follows:(1)The Internet of Things technology could be applied to the water supply system.The construction of a leakage control system for urban water supply pipe network based on the Internet of things and cloud computing could expand effectively the function of the SCADA system,which provided new ideas for the research of the water supply network leakage control,and contributed to the construction of smart city.(2)The pressure trend surface analysis method and the pressure management based on genetic algorithm were integrated into the Internet of Things technology,solving the problems of pipe network leakage control,such as large data,data transmission,data management and so on,which could effectively manage the water supply network to meet the management needs of the water supply system.(3)The example showed that when applied to water supply network of a certain area,the system could optimize the control valves and valve opening degree to make the pressure of pipe network tend to be reasonable,and the leakage loss reduced from 36.2593L/S to 31.2651L/S.