Modular Construction Of The Internet Of Things System

The three tier architecture of the Internet of Things(Io T)has been put forward for many years.With the continuous development of the Internet of Things,the application of Internet of Things is more than before,and the application scenario is more complex.The traditional three tier architecture of the Internet of Things system is complex and professional,and the system is difficult to use.Once construction is completed,the function is difficult to expand.The manufacturer's standards are different,so the data is difficult to share.The rapid development of artificial intelligence and large data has also brought more challenges to the Internet of Things.Its massive data and complex data processing are difficult to control by the traditional Internet of Things system.In order to solve the above problems,this paper puts forward a new analysis angle of the Internet of Things,that is to analyze the Internet of Things system from the point of view of data,abandon the traditional three layer architecture system,divide the Internet of Things into data collection,data processing and data service,and combine the Internet technology,the three parts are elaborated.On the basis of this analysis,a modular approach to the construction of IOT system is proposed in order to achieve the versatility,extensibility,reusability and simple and flexible design objectives of the system.In order to realize the modular construction method,the paper designs and implements a data acquisition and processing framework for the Internet of things based on the idea of software architecture design.This framework aims at data acquisition and data processing,integrates modular design ideas,abstracts sensors and data processing functions into nodes and modules.A tree model is designed and implemented to represent the topology of node connections.Data channels are implemented based on Netty and inter process channel communication.The application platform provides data services.Based on the data acquisition and processing framework,a data service platform is designed and implemented.The platform supports the application of multiple modules,and many applications can be processed at the same time.Based on this,the paper implements four applications of Internet of Things,including video surveillance,temperature monitoring,vehicle identification and public security system.Among them,vehicle identification is the longitudinal expansion of video surveillance,and the public security system is a horizontal extension of the other three applications.It verifies the practicability of modular construction of Internet of Things,and its universality,extensibility,reusability and simple and flexible construction.