Development And Application Of Multi-protocol Conversion The Water Conservancy RTU Middleware

With the rapid development of network technology, computer communicationstechnology, and a variety of small and flexible distribution for embedded devices inindustrial and agricultural production and daily life gradually gained popularity andexpanding Meanwhile, information, networking all walks the development trend ofthe industry, and how to achieve the interoperability of these devices work together tobecome the urgent problems of practical application. Comprehensive political,economic, industrial control and can’t be separated from the transmission and sharingof data. However, due to various reasons, different network devices may come todifferent businesses using different communication protocols, differentcommunication protocol for the sharing of data caused great obstacles. Protocolconversion technology for communication between different devices of differentprotocols and the rise of contemporary research focus.In recent years, national efforts to support the construction of water conservancysystem information continue to increase, and the integration of isolated water data andfragmented hydrological monitoring equipment, to achieve unified management of theinformation systems of different networks of different regions of the waterconservancy countries Water information system the proposed goals. However, thelarge number of water conservancy system use intelligent terminal water equipment,resources telemetry RTU communication protocol also exists the phenomenon is notcompatible, pose great challenges for data sharing. To this end, the subject ofconversion between different protocols based on middleware technology to solve theproblem of RTU protocol is not compatible, provided technical support for a varietyof devices in the process of water conservancy information interoperability.Middleware is an emerging technology, but also the development trend ofheterogeneous systems. However, the heterogeneous network between differentnetwork protocols to communicate with each other is not enough support, has not yetformed a unified framework for protocol conversion applications. This paperproposed and implemented the middleware architecture of protocol conversion basedon J2EE technology standard has some theoretical significance to the current protocol conversion. This paper first introduces the contents of the communication protocoland the different protocol conversion principle in the Water Resources InformationSystem. Then, this article also introduces the concept of middleware and middlewarecharacteristics and development trends, then in middleware technology standard,while highlighting common functionality and specific performance of the messagingmiddleware, and this leads to this topic middleware The Design and Implementation.Finally, to simulate the experiment demonstrated the feasibility of the system.Multi-protocol conversion the water conservancy RTU middleware system uses atwo-tier structure of the distributed design of this project: server-side business logicprocessing of the edge of the data acquisition end and center. Messaging middlewarearchitecture specific design guidance, the classification of different data messages, themessage data streams to pass a certain control, making more efficient protocolprocessing module based messaging. Also provides for a specific message formats,protocol processing error unknown data filtering and discarded to ensure that the hostcomputer into the queue waiting to be scheduling module scheduling data thusprotocol format conversion smoothly converted to custom protocol format, enhancedreal-time nature of the system. Finally, tested in a lab environment and run, prove thestability and reliability of the system, and fully meet the conversion between differentframe format protocol in water industry.