Design Of Automatic Irrigation Control System For Rice Based On Internet Of Things Technology

Since the new century,the development of large-scale agricultural production has increased the demand for water resources.However,as a large rice growing country,rice irrigation technology is still mainly in the relatively traditional artificial watering mode,which causes a large amount of water resources waste,resulting in a very low utilization rate of irrigation water.Traditional irrigation method,its data acquisition system adopts wiring method,not only its cost is expensive,but also it is not easy to change,occupy space and so on the characteristics of the management work caused trouble.In rice planting process,according to the water requirement of different growth period of rice,controlling the time and water consumption of irrigation in real time can greatly improve the utilization ratio and meet the requirement of reducing artificial investment in modern agriculture.Therefore,the use of advanced automatic irrigation technology is imminent,compared with the traditional irrigation methods,modern automatic irrigation system data acquisition using wireless communication,not only high transmission efficiency,high precision,and cost-saving easy to manage.Therefore,the automatic irrigation control system of rice based on IOT technology has high practical value.With the wave of the third scientific and technological revolution,the technology of IOT has come into being and has been widely used in different fields.One of the core contents of IOT technology is wireless communication technology,and ZigBee technology can occupy a place in the development of IOT by virtue of its stable transmission capability.With the development of mobile network,GPRS wireless transmission technology has been widely popularized,its signal coverage area is large,transmission distance is far,transmission efficiency is high,can satisfy the data long-distance send and obtain.The automatic irrigation control system designed in this paper adopts the technology of embedded system technology,ZigBee wireless networking,GPRS transmission and automatic control.The system is composed of terminal data acquisition node,base station,upper computer and water pump.The data acquisition node of the bottom terminal is composed of various data acquisition sensors and ZigBee modules.The terminal data acquisition node uses various kinds of sensors to collect different environmental data,including water temperature,water level and rice growth status.Each node can exchange data with the base station through ZigBee wireless communication.After the base station receives the data sent by the bottom node,the GPRS module in the base station sends the data sent by the bottom node to the upper computer by wireless transmission,so the user can get the real-time acquisition through the host computer platform.Environmental information in the pool.According to the biological knowledge,we know that the water demand of rice in different growth and development period,automatic control of the water pump switch,so that the water requirement of different growth period of rice can be satisfied,to solve the problem of low utilization rate of irrigation water caused by the traditional way of flood irrigation,and then save the agricultural water consumption greatly.The test experiment of the system is carried out in Fangzheng Rice Research Institute.Through repeated tests,the system data is transmitted normally through wireless transmission,and the effect of automatic control of rice irrigation is good,which can meet the needs of the users.