Design And Implementation Of Cloud Platform Of IOT For Smart Classroom Based On ZigBee

With the continuous development and maturity of wireless communication and cloud computing technology,the use of IoT has been widely valued in academia and industry.Building an IoT Cloud Platform for Smart Campuse has been rapidly developing in universities.In terms of environmental improvement,equipment management,fire safety,personnel consumption,and energy saving,traditional classrooms still have many problems,which cannot meet the requirements of Smart Campus construction.Therefore,this paper designs and implements an IoT Cloud Platform for Smart Classroom based on ZigBee technology to solve these problems.The main content of this article includes:(1)The perception and control of muti-network nodes were realized by wireless sensing technology and based on ZigBee technology,which selects CC2530 as the main control chip to realize the collection of various sensor data,and use the standardized Protocol Parameters to complete the function of data packet transmission.The ZigBee network in the classroom adopts a Star-shaped network,which realizes the communication of the internal control network in the classroom and standardizes the Data Frame format.Each classroom node uploads the aggregated sensor data to the Smart Classroom software platform of the Cloud server through Wi Fi technology and receives the control instructions from the platform.Experiments have verified that the ZigBee-based communication method used can effectively support the real-time,validity,and stability of data transmitted by multi-source heterogeneous sensors for Smart Classrooms.(2)Aiming at the IoT cloud platform for smart classrooms,a SOA-based classroom resource management and monitoring solution were proposed.The platform supports functions such as adding,deleting,changing,and controlling equipment in the classroom;Effectively realizes that the storage,processing and analysis of multi-source heterogeneous data.By analyzing and comparing data,setting environmental alarm rules,it can make real-time judgments on classroom environment perception,pushes alarm information,and supports linkage with environmental control equipment.Experiments have verified that the developed smart classroom cloud platform can effectively realize classroom environment perception,equipment control and linkage.(3)For the constant temperature control system which is for the Smart Classroom,a solution combining the optimization algorithm of Fuzzy PID control was proposed.Through the simulation experiment of the algorithm,it was proved that all used Fuzzy PID-based control algorithms can effectively improve the real time and stability of temperature control.In summary,this paper designed and implemented a complete set of IoT Cloud Platform solutions for Smart Classroom.Experiments show that the Cloud Platform can realize automated environmental monitoring of classrooms,improve the quality of the classroom environment,ensure the safety of school teachers and students,and ensure the normal operation of equipment under the premise of effectively saving labor and energy costs.This fully proves that the project is feasible and has strong practical significance and social value.