Research On Intelligent Monitoring System Of Greenhouse Based On Internet Of Things

Greenhouse can create a suitable environment for the growth of crops and promote efficient and high quality crop production.With the application of Io T(Internet of Things)technology,greenhouse management is developing in the direction of intelligence and information.Therefore,this paper studies an intelligent monitoring system of greenhouse based on Io T.The environmental parameters in the greenhouse are collected by sensors,and then uploaded to the remote monitoring platform by wireless communication technology.Users can view and control the greenhouse environment to achieve intelligent monitoring of the greenhouse environment.The main research contents of this paper are as follows:(1)To carry out system requirement analysis,design the overall scheme,and introduce the key technologies involved.The system consists of three parts:control terminal,embedded gateway and remote monitoring platform.The control terminal is used to collect greenhouse environment data and complete local data transmission based on Zig Bee wireless communication network.The embedded gateway is responsible for receiving the data uploaded by the control terminal,and after the data processing is taken,the data is remotely transmitted through NB-Io T wireless communication.The remote monitoring platform consists of server,database and client.The server is used to receive the greenhouse environmental data uploaded by the embedded gateway,the database is used to store the relevant data,and The client can provide WEB pages for display,to meet the needs of users for data query and remote control.(2)The software and hardware design of the system.The hardware design includes two parts: control terminal and embedded gateway.It mainly introduces component selection and functional module circuit design,and proposes control strategies for the greenhouse environment.The software design includes two parts: control terminal and embedded gateway.It mainly designs software for Zig Bee wireless communication network,STM32 microcontroller,NB-Io T wireless communication,etc.,and then develops data communication protocols to ensure the safe and effective transmission of data.(3)The remote monitoring platform was built based on Ali cloud server.It is designed based on the server,database and client.The server uses Spring Boot framework to interact with the client and Ni O network model to communicate with the embedded gateway.Mysql database is used to store relevant data,which is convenient for client to inquire and access.The client takes Vue.js framework as the core to complete the design of WEB pages.(4)According to the characteristics of greenhouse environment,the intelligent control method based on data fusion and fuzzy control is studied.Firstly,the environmental parameters were preprocessed by data fusion to improve the reliability of data and the accuracy of data fusion.Then,the idea of fuzzy control is used to establish a multi input and multi output fuzzy control system to control the working state of the actuator,which can make the greenhouse environment get close to the set value quickly,and maintain in a stable state,to meet the control needs of the greenhouse environment.(5)System test and analysis.Building the experimental test platform to test functions including data acquisition,data transmission,remote monitoring platform and intelligent control methods.The test results show that the system can realize the collection and reliable transmission of Greenhouse environmental data.The remote monitoring platform can carry out data viewing,data storage and remote control,and the system can realize the effective adjustment of greenhouse environment.