Design And Implementation Of The Field Environmental Monitoring System Based On Agricultural Internet Of Things

The crop growth is deeply affected by the field environment. Real-time monitoring offield environment and timely adjustment of relevant parameters help increasing theproduction of agriculture. With the development of agricultural Internet of Things, the fullrange monitoring technology of field environment combined with sensing and Internet ofThings develops rapidly.The existing wireless environmental monitoring networks are mostly based on the clustercommunication system, GSM short message and CDMA/GPRS technology. They are difficultto apply in modern agriculture for some difficulties, such as high cost, low Internet accessspeed, complicated operation, small range of network coverage, and sharing information.Based on the requirements of field environmental monitoring network, like low cost, lowpower consumption, large range of coverage, multi-parameter, multi-site and high access rate,this study proposed a field environmental monitoring system which meets the agriculturalInternet of Things architecture. This system can achieve timely online monitoring airtemperature, air humidity, soil moisture, CO2concentration, light intensity, water pH and cropgrowth parameters of multi-site.The contents of the study are as follows:(1) Based on agricultural Internet of Thingsarchitecture, the designed system could supports ZigBee,3G mobile network and TCP/IPnetwork at the same time.(2) Design ZigBee sensor nodes which belong to perception layerto achieve the multi-parameter collection.(3) Design an embedded coordinator gatewaywhich supports access and control from remote clients based on microcontroller ARM9.(4)Design an agricultural environmental monitoring center server which supports clients tobrowse the Web and download data to store and manage data.The test results show that the system prototype has following features:(1) The systemcollects field environmental information timely and accurately, and the data can be saved inthe agricultural environmental monitoring center server.(2) Remote clients have ability toaccess the server and gateway, control the system, read and download data through a browser.(3) The WSN can access Internet and3G mobile network in high speed. Briefly, inaccordance with the design goals of scalable and low-cost, this system can meet therequirements of modern agricultural environmental monitoring.