Soil Moisture Monitoring System Research And Implementation Of Irrigation Based Internet Of Things

Since ancient times,China is a large agricultural country.In order to promote the increase of agricultural improve the ability of field management,it is necessary to grasp the dynamics of field crop fertility accurately,and it is necessary to carny out dynamic monitoring and trend analysis of field crop,moisture,disease and disaster.In this paper,from the agricultural four-point monitoring system,focusing on the realization of the soil moisture monitoring system,the system not only to achieve the monitoring of soil moisture,but also the use of less resources,reduce system costs.In this paper,Zigbee wireless communication technology and 4G technology combined,the application of RT5350 and CC2530 chip,intelligent gateway module design and Zigbee wireless sensor nodes,multi-layer wireless sensor network architecture.The main contents of the study include the following aspects:Taking the wolfberry park of Zhongning as an example,designing the overall framework of soil moisture monitoring system.To determine the use of Zigbee wireless sensor network as the underlying communication system architecture combined with 4G technology and host computer communication,to achieve remote monitoring of soil moisture.Through the analysis and comparison of several commonly used intelligent gateway chips,the RT5350 chip is chosen as the core chip of the intelligent gateway to realize the communication between the multi-layer communication networks.At the same time,the intelligent gateway can be used as the main controller of the system.Design of RT5350 intelligent gateway and ad hoc network Zigbee wireless communication module hardware structure.The Zigbee wireless communication module includes the power supply circuit,the indicator light and buzzer circuit,the USB to TTL circuit,the 485 communication circuit and the module of the communication module.The Zigbee wireless communication module includes the power circuit of the communication module,the indicator and the buzzer circuit,the USB to the TTL circuit,the 485 communication circuit and the module.Interface circuit,the core board designed antenna circuit,the main chip basic circuit,the function module circuit.Design of the host computer monitoring software,including the sensor data read,and the communication between the host computer,etc.,through the 4G module remote communication,to achieve remote monitoring of the system.Finally,all the circuits of all PCB design package on a large scale production and welding,each module interface for debugging,analysis of the specific situation of communication,so that the system safe and stable operation.