| With the development of information technology,network technology has been increasingly applied to all walks of life.Online monitoring systems are also increasingly integrated with Internet technologies and cloud computing technologies.Traditional online monitoring systems are usually deployed on industrial sites.Performance and scalability are limited by the local IT infrastructure,and on-site monitoring sites are dispersed and widely distributed.Therefore,the remote online monitoring system proposed in this paper redesigns the system architecture with a distributed architecture,develops an extensibility interface,and migrates the system to the Microsoft cloud platform,leveraging the scalability,efficiency,and fault tolerance of the cloud platform for the collection of precious water quality environmental data for cloud storage.Finally,based on the cloud platform,complete system data collection,network communication,database management,data distributed processing and status monitoring display are integrated into the system design and development.The entire environmental protection online monitoring system is divided into four layers:the field device layer,the data communication layer,the cloud server layer,and the Web monitoring and display layer.The field device layer developed corresponding data acquisition drivers for the three protocols Modbus,OPC,and custom protocols,which enabled access to the underlying distributed scenario and improved system scalability.The data communication layer used TCP/IP protocol Socket for remote data transmission between segments,to achieve the interconnection of heterogeneous networks;cloud server layer,designed and developed the server structure and functionality,to achieve the remote data reception and analysis,database design and optimization,Encapsulated historical data query interface and real-time data query interface to improve the scalability of the system,completed the difficulties in the entire system development process;Web monitoring display layer,developed a monitoring system display interface,to achieve on-demand historical data query A series of monitoring functions such as trend chart display of historical data,dynamic display of real-time data,dynamic chart display of it and the video monitoring for equipment.In the past,the system was only read,processed,and stored on a local stand-alone server.This system was developed for distributed field devices and distributed management users.The system server was designed to develop upper and lower interfaces to achieve Distributed access to the underlying equipment,and monitoring of users' distributed supervision at the upper level.The overall system adopts B/S architecture development.The cloud platform uses Microsoft Azure Microsoft Cloud.The database uses Microsoft SQL Azure Database to store environmental big data.The Web server is developed using Java Web.Ultimately,the user can log in to the monitoring interface at any location,to view any device data and charts under any site,or query historical data.Users can also develop their own monitoring interface by calling the system's third-party interface. |