Research On Wisdom Agriculture Architecture And Key Technologies Based On Internet Of Things

Wisdom agriculture has received extensive attention in recent years.Its technology was integrated the information technology represented by the Internet of things into the field of agriculture.Through hardware construction and software design,intelligent sensing and control,and human to machine and thing were fully connected.However,the development of wisdom agriculture is in the primary node,and some technical problems remain to be solved.For example,there are many devices in the Internet of things,especially the sensing devices,the interfaces between devices may vary greatly,involving a variety of communication protocols.It also makes application development difficult.The research of wisdom agriculture needs to combine the Internet of things,information systems or platforms with agricultural applications.Therefore,it is important to strengthen the research on the intelligent agriculture based on the Internet of things,as so as to promote the intelligent management of agriculture and the promotion of agricultural information.On the basis of the review of the related research system of intelligent agriculture,this paper studied the routing algorithm based on cluster based wireless rechargeable sensor network,the research of lightweight secure communication protocol for intelligent agriculture and the construction of service oriented network for disaster prevention monitoring.To sum up the research work in this paper,the research contributions were mainly concentrated on the following 4 aspects:(1)Taking the related research of intelligent agriculture as a clue,this paper mainly reviewed the current research situation of Agricultural Internet of things.Starting with the development of the agricultural Intnert of Things,the system framework was summarized,Several typical key technologies were discussed and the application of the agricultural Intnert of Things in several representative fields was introduced.Finally,the characteristics and existing problems of the Agricultural Internet of things were analyzed.Point and trend of development is expected in the future research.(2)Based on the current research status of wireless rechargeable sensor network,considering the difference of energy acquisition efficiency of sensor nodes and the limit of node battery capacity,a new clustering based routing algorithm(NCBRA)was proposed for WRSNs for wisdom agriculture.The WRSNs and energy consumption model was constructed and designed.It was embodied in two stages: cluster establishment and data transmission.Simulation showed that NCBRA was effective in cluster head quality,energy increase per round and packet loss rate.(3)To reduce the cost of computing in the perceptual layer through the security layer protocol,the light weight security mechanism was proposed between the middleware layer and the perception layer with the concept of "digital signature".The identity of the sensing node in the perceptual layer can be authenticated by the middleware layer.The information security equipment and the information security module are designed to achieve two-way authorization and authentication.It confirmed the permitted access control list on the online device and protects information communication by decryption technology.(4)To explore the problem of network transmission burden caused by massive data in the disaster monitoring Intnert of Things in order to reduce network load.By taking disaster prevention monitoring as an example,a service oriented architecture and operation process was constructed to enhance the service quality of related applications of disaster prevention monitoring Intnert of Things.Considering the possible emergencies in the agricultural environment,It proposed an effective workflow in the cloud environment to improve the quality of service.