Research On Key Technologies Of Internet Of Things Distributed Access Platform

The Internet of Things is a product of the combination of the development of network technology and the needs of human society.It has received attention from the national,social and enterprise levels.Therefore,the Internet of Things technology has developed rapidly.The Internet of Things access platform is the center of data interaction.It can integrate upstream and downstream key resources for a long time,and has the role of linking up and down,occupying a dominant position in the entire Internet of Things system.So how to develop a universal IoT access platform has become a research hotspot in the Internet of Things industry.This paper designs the Internet of Things access platform Smart City,and then verifies the practicability and feasibility of the access platform through the docking laboratory project smart city IoT application platform.The key technologies used in Smart City-data storage technology,concurrent access technology,and open API research are as follows:(1)Design and implement the database used for data storage of the Internet of Things platform.Aiming at the massive structured,semi-structured and unstructured data sent by IoT devices,the lightweight database can not satisfy the problem of data mining and analysis operations that have been complicated for its storage.An NC4 based on C4.5 decision tree algorithm is proposed.5 Decision tree model,and then build the NHBase database according to business needs.(2)Designed and implemented a framework to increase the concurrent access volume of the Internet of Things platform.Aiming at the problem that a large number of IoT devices access the IoT platform at the same time,resulting in slow response and poor real-time performance,an integration framework based on Flume+Kafka+Storm+HBase is proposed.(3)Design and implement the message description of the IoT application platform and equipment.Aiming at the reporting and delivery of data of smart city IoT platform,a set of message transmission format definitions suitable for platformsand devices was developed.(4)Smart City designed and implemented the IoT application platform-smart city.By connecting the smart city IoT platform through the Smart City access platform,the smart city IoT platform can be quickly put into use.A set of message transmission format definitions for platforms and devices has been developed for the data characteristics of smart device application platforms.