Design And Implementation Of Internet Of Things Service Platform Based On CoAP

With the rapid development of Internet of things in recent years,various applications based on the Internet of things are exerting a subtle influence on everyone's daily life.Because many of the devices in the Internet of things are resource constrained,only a small amount of memory space and limited computing power,the traditional HTTP protocol is too large and not applicable to the Internet.CoAP protocol and its protocol family are playing a more and more important role in the field of Internet of things because of their adaptation to restricted devices and restricted networks.In this paper,the CoAP protocol based on CoAP protocol will be used as the transport protocol of the Internet of things.This paper mainly studies the Internet of things service platform from three aspects.First,we study the existing two schemes of SOA based enterprise information management system and the bottom sensor network integration,and analyze the advantages and disadvantages of the two schemes.Among them,SOA is a service oriented software architecture,and Web Service is one of the important forms to realize SOA,and RESTful Web Service is lightweight and easy to use.It plays a more and more important role in enterprise business system.Then a hybrid scheme to avoid the shortcomings of two existing schemes,namely,the embedded RESTful Web Services scheme based on CoAP protocol,is composed of CoAP RESTful API for sensor networks,HTTP RESTful API for the business system,HTTP/CoAP command conversion component,and data analysis module.Finally,the framework of the thesis is designed,and the testing environment is built.Functional testing,performance testing and financial calculation are completed.From the analysis of the test results,the scheme proposed in this paper has certain feasibility and superiority.The IOT service platform is applied to the intelligent gas system.