Design And Research Of Agricultural Environment Data Acquistion System Based On RT-Thread And Wireless Sensor Network

With the development of science and technology,achieve remote monitoring of the Internet of things is needed for more and more people,research and design of data acquisition,sensor network and data transmission to the Internet,remote monitoring,it has positive agnificance to improve the remote acquisition of agricultural environmental data,can improve the efficiency of agricultural production.This paper introduces a data acquisition system of agricultural environment based on RT-Thread and wireless sensor network.Can achieve remote monitoring of unattended agricultural field environment,acquisition of temperature,humidity and light intensity data through the wireless sensor network,and transmit the data to the server,so as to achieve through the Internet to the sensor network real-time acquisition and monitoring.The scheme based on RT-Thread embedded real-time operating system,nRF24L01 wireless network connection temperature and humidity sensor DHT11 and BH1750 light sensor,wireless sensor network,using LwIP protocol stack is transplanted to the STM32 miarocontroller,the communication module SIM900A PPP dial-up connection Internet.And Study on the JSON language and Socket API interface based on the networking data transmission and browsing system,the deployment of FatFS file management system to facilitate the transfer of the SD card to store data,using the HTTP protocol and TCP/IP protocol to build JSON,combined with Socket prepared by the C/S architecture the data collected will be uploaded to the server,realize data browsing using B/S server architecture.And we can use the computer or mobile phone APP access server,remote monitoring and management of agricultural environmental information.The design of the data acquisition system includes hardware circuit design and software program,the experimental results shows that the data acquisition system is stable,that mentioned in this paper is based on RT-Thread and wireless sensor network data acquisition system design environment of agriculture rationality.