Research And Construction Of Teaching Information Mining System Based On Internet Of Things

In order to scientifically evaluate the quality of classroom teaching,to track students' learning status and to manage classroom resources and so on,schools begin to improve the teaching management method by enhancing a previous Computer-aided statistics teaching management model which mainly relies on teachers to call the roll andstudentsto sign inintoa more efficient,innovative and friendly modern teaching management model.The rapid development of Internet of Things technology and data mining technology can be effectively applied to teaching management.Therefore,the research and design of teaching information management system based on Internet of Things technology and data mining technology will have great practical application value and broad application prospect.Firstly,we analyze the current research status of teaching information management system at home and abroad,plan the function of teaching information mining system based on Internet of Things technology,demonstrate the technology scheme of information acquisitionmodule,gateway module,serverand the core algorithm of teaching information mining system,design the overall architecture of the system,and providethe development method of the system.Then,the hardware and software design of a classroom student information acquisition subsystem is carried outbased on amicrocontroller STM32F103,and the function ofstatistics of classroom students' attendance rate and head up rate is realized.Next,the hardware design of a gateway subsystem is carried outby utilizingan ARM chip STM32F207 with Cortex-M3 core,an Ethernet interface chipDP83848,a RS485 communication interface chipSN65HVD11,a power chip TPS5430;the software design of the gateway subsystem is completedby transplanting the FreeRTOS operating system to STM32 and transplanting the Lw IP protocol toFreeRTOS.Finally,the teaching information data mining algorithm is proposedbased on the PageRank algorithm,and the B/S structure is used to design software on host computerfor the teaching information mining system.The system can dig and link a lot of useful information on teaching management and teaching quality evaluation by means ofbig data of the two indicators i.e.classroom students' attendance rate and head up rate.