Design And Implementation Of Remote Control System For Rice Irrigation Based On Internet Of Things

Our country is populous,food problems about people’s livelihood,the development of modern agriculture is the inevitable road,is the development of science and technology support,the whole process is inseparable from the cultivation of rice irrigation,from seedlings,planting in spring,has been to before the autumn harvest in the paddy field has been to maintain a certain level and planting process also requires a lot of human resources for irrigation water management.Traditional irrigation methods are labor-intensive and inefficient,and the irrigation amount is inaccurate and arbitrary,which often requires excessive water after irrigation,resulting in a large waste of water resources,and the loss of various pesticides and fertilizers in rice fields,resulting in a low overall utilization rate of water.Therefore,the intelligent irrigation of rice has become an urgent task.This system is a remote control system of agricultural irrigation based on embedded system,remote wireless transmission technology and database technology.It mainly includes 7 functional modules,namely water level monitoring and gate control system,power supply module,wireless communication module,main control unit,display module,central controller and user’s mobile phone^[1].Terminal to monitor water level of equipment is used for monitoring the paddy rice,and to monitor these parameters through the Zigbee network transmission to the central controller,and preset Zigbee terminal nodes comparing the water level in the upper and lower threshold value^[2],more than set up a good threshold to disconnect the electromagnetic valve shut down Wells stop irrigation,have not reached the connected electromagnetic valve open well continue to irrigation;Choose well gate on/off,gateway module after analysis of data fusion,using 4 g network sends the data to the PC,data collected in an interactive interface,according to the irrigation control process can be operated by manual and mobile client,then according to the rice water requirement to implement the accurate automatic irrigation,saving water,electricity and human resource^[3].This paper mainly does the following work:（1）Studied different communication technologies in the application of the Internet of things.According to different network environments and requirements,different communication technologies such as 4G and ZigBee are adopted to realize data transmission^[4].（2）Data acquisition module is designed.The embedded gateway collects the data of the sensor node through the communication protocol.After the data is analyzed,it is uploaded and saved to the database server.The main data collected is the water level information of the rice field.（3）Designed the cloud server module and Android client.The Android client can interact with the embedded gateway through the cloud server,read real-time data and historical data,and remotely control the field equipment through the embedded gateway.（4）Embedded gateway hardware and software are designed.In terms of hardware,the embedded gateway and its related peripheral circuits are designed.In the software,according to the requirements of the design of the application process and the realization of the functions of each module.RRLS-B2B routing algorithm proposed in this thesis has good performance in terms of delay,packet loss rate and energy consumption.（5）Finally,the system was installed in the paddy field of faku county,shenyang city,liaoning province for testing.All functional modules and the whole were tested and operated.The system ran stably and met the requirements of the project.