Design And Research Of The Agricultural Intelligent Irrigation System Based On GPRS And ZigBee Technology

In the 21 st century,water resources have become a kind of scarce resources,it affects the national economy,social stability and harmony and the country's long-term stability.As a big agricultural country,how to realize intelligent irrigation by saving water has become a issue of great concern to the whole society.Wuwei,Gansu Province,has the best natural endowment of grape cultivation,and is the best producing area of organic wine in China and even in the world.The grape cultivation mainly depends on artificial sprinkler irrigation,and the level of agricultural intelligence is still quite backward at present.Aiming at the large water consumption for farming and the low level of intelligent irrigation,the control strategy and realization method of intelligent irrigation system for crops are studied.An intelligent irrigation system for agriculture based on GPRS and ZigBee technology is designed.The system is based on the Internet of GPRS and ZigBee technology and takes fuzzy as the platform.Based on the control decision algorithm and with the design of intelligent control service platform system as the core,it can automatically irrigate the plants according to the water requirement in different growth periods,so as to maximize the benefit of increasing yield and saving water.This paper mainly studies the following aspects:(1)Complete the overall framework of the system structure design,analyze and study the characteristics of ZigBee and GPRS technology,network node types,network topology and communication protocol,lay the technical foundation for data transmission.(2)According to the principle of decision algorithm,fuzzy control algorithm is applied to realize the decision of grape planting irrigation.(3)Completed the circuit design of hardware structure based on ZigBee core control chip CC2530,and the hardware circuit design of soil moisture sensor,air temperature and humidity sensor,wind speed sensor in the detection module,and completed the electromagnetic valve control circuit schematic design of the control module and the software design of each module.The system process is designed to realize the monitoring and irrigation control of the agricultural irrigation control system.(4)The hardware and software design of the gateway coordinator node based on GPRS technology is completed.The hardware circuit design of GPRS with SIM900 A module as the core and the realization of its related basic module functions are completed.The software design of gateway coordinator in the implementation level and the coding of related functional modules are designed to realize the data transmission function of GPRS gateway coordinator.(5)In the design of intelligent control platform for irrigation system,the basic functions of agricultural production data inquiry,irrigation control,equipment status inquire and faultsettings,system users and other basic functions such as use case diagrams,business flow charts,data operation sequence diagrams and database tables are designed,and then coded on the basis of program flow charts.Debugging and testing to realize the design of intelligent control platform for agricultural irrigation control system.