Design And Implementation Of Agricultural Environment Monitor Based On MSP430

The application of the Internet of things will be able to solve the problem of information acquisition,efficient and reliable information transmission and intelligent decision making for different applications,is the upgrade of traditional agriculture to modern agriculture booster and accelerator.In the process of agricultural production,environmental factors such as temperature,humidity,illuminance,C02concentration and other nutrients,affect the growth of crops.In the extensive management of traditional agricultural production,the environmental factors can be managed by human perception and experience,cannot achieve the most favorable environmental conditions for the growth of crops.In order to overcome the problems existing in traditional agricultural management,intelligent management of modern agriculture must have a set of practical,reliable,long-term monitoring of agricultural environmental monitoring system.Therefore,this paper designs an agricultural environmental monitoring system based on MSP430.The system can accurately obtain the information of the environmental parameters of crop growth in real time.Firstly,this paper introduces the research background,the current situation and future development trend of the agricultural environmental monitoring technology,and gives the overall structure of the system based on the system requirements analysis.According to the design requirements,based on MSP430F149 microcontroller and CC1101 wireless transceiver chip as the core,equipped with a temperature sensor,humidity sensor,illuminance sensor,C02 concentration sensor builds sensor hardware node environment for agricultural production information collection,design the sensor acquisition circuit and its related acquisition program;Combined with the characteristics of Modbus transmission protocol,the star network between master node and slave node is designed,and the design of the wireless transmission program between the master node and slave node is completed.The data transmission between master node and slave node based on 433MHz is realized by CC1101 wireless transceiver chip,to achieve the long-rang monitoring and display of real-time environmental data.Through the system test in the laboratory environment time after time,wireless sensor nodes can construct wireless networks,the star network experiment using Modbus communication protocol can work normally and stably.The accuracy of the data acquisition can meet the requirements,and the wireless data transmission can be carried out reliably,and the function of remote monitoring is realized.