The Research And Application Of Middleware Technology For Data Monitoring System Of Agricultural Internet Of Things

Information agriculture and Internet of things technology are intricately linked,with the rapid development of computer technology,network technology and communication technology,Internet of things technology has been widely used in agricultural production,and the related technologies of intelligent control,safe transmission and predictive analysis of fine agriculture have become the focus of people's attention and research.the development of agricultural IOT data monitoring system exists the problems,such as the wide variety of sensing devices,the complex communication protocols and the low development efficiency.In this paper,the middleware technology of data monitoring system for agricultural IOT is studied and discussed in order to improve the development efficiency,reduce the difficulty of development and the development cost.This paper studies the middleware of agricultural IOT data monitoring system,mainly used to shield the difference at the bottom of the system in different sensing equipment acquisition or transmission of data communication protocol and data format,and to provide a unified standard of equipment control and data acquisition interface for the upper layer application program,in order to reduce the difficulty of development and improve the efficiency of development.The middleware model includes intelligent gateway module,data transmission module,data processing module and application program interface(API)module.The intelligent gateway module comprises a communication protocol interface and a unified protocol conversion,The data processing module includes a unified data format,data filtering,data fusion,using adaptive weighted average algorithm is improved in the process of data fusion and the accuracy of data collection can be improved.The data transmission module comprises an analytic operation of the protocol,and the data is transmitted by the protocol under the command of the data monitoring system.the application interface module composed by local user module and the remote client terminal module realize real-time monitoring of the agricultural production site for local users andremote clients.In this paper,firstly,the research status and related technologies of the data monitoring system middleware of agricultural IOT are deeply analyzed and studied,On this basis,the model,architecture and function module of the middleware are analyzed and designed in detail,and the main function modules are designed in detail,finally,the middleware is applied to the development of the data monitoring system of the greenhouse.The middleware is developed using Visual Studio 2013 as the development platform.