Research And Implementation Of High Concurrent Web On Line Monitoring Platform

With the development of computer application technology,the application of computer on line monitoring technology in the field of industry has become more and more widely.Through the study of domestic and foreign online monitoring technology research,we found that in the development o f supervisory control and data acquisition(SCADA)system based on C/S architecture development,and the architecture of the biggest drawback is to maintain the volume is too large and because the data is stored on the client,not the amount of sea data fo r analysis and mining.Therefore,it is difficult to optimization,the most economical solution to enable equipment operation.The through the configuration of SVG Technology Used in the browser and pair database concurrency,distributed caching and load b alancing technology research,achieved a run in the browser configuration monitoring system,not only reduced the system maintenance difficulties,but also combine high performance characteristics of C/S architecture monitoring system.The main research co ntents of this paper are as follows:1.SVG configuration technologyIn the popular configuration software based,combination of Internet technology and configuration software technology and industry scene monitor system,and to form a new configuration system based on B / S(Browser / server)structure.Front-end RIA rich client technology to SVG scripting for the container and embedded into HTML pages in the form of real-time release to the web design,to achieve a dynamic picture of the real-time refresh and remote monitoring,using partial refresh mechanism and data server to interact,and response speed of the system to improve the real-time.Through deep study on the SVG Standard script code,the design of various components based on SVG,system configu ration design around the component of the core,give full play to the advantages of component technology,improve the system scalability and openness.According to the general design ideas,design and development of the an based on SVG scripting graphics l ibrary,after the release of the system,script graphic library components through HTTP protocol and server data transmission and transfer operations and server telemetry,remote communication,events,etc.information back to the browser and browser based on the data state show animation effects.2.distributed cache technologyBased on the study of distributed cache memcached,a based on.Net platform with high concurrency web on-line monitoring platform,and in this paper,the system architecture,design,function and characteristics of the were introduced and analysed in detail.3.database concurrency TechnologyIn large data environment,the database access speed is very high,and the access bottleneck of Web system is in the I/0 data transmission.In this paper,we have made an in-depth study on the concurrent access of the database,and discussed in detail the main and subordinate database technology,database load balancing technology and database partition.