Energy Consumption Optimization In RFID And WSN Integrated Networks

RFID(Radio Frequency Identification)has the technical advantages of non-contact identification,and WSN(Wireless Sensor Networks,WSN)has the technical advantages of self-organizing topology,the integration of the two system has a powerful function and broad application prospects.It has a far-reaching impact on many fields such as agricultural production,logistics warehousing,food testing,and environmental testing.Nowadays,some intelligent systems based on integration networks have been explored.The problem of high energy consumption in the integration network has been one of the key in restricting the development of the network,which is also an important research topic in the integration network.Firstly,this paper introduces the technical background,the development history and the research status of RFID,WSN,and RFID and WSN.Then,the paper analyzes the integration network from the network coverage and clustering routing protocols,and puts forward a new solution method.This paper discusses the problem from the following aspects.(1)Analysis of RFID and WSN fusion of the integration of the network structure,systems,work methods and technical standards of the network.(2)In the study of network coverage strategy,the network rotation strategy of network coverage is studied in detail,and the common rotation sleep strategy,random backoff time rotation sleep strategy and energy-based backoff time rotation strategy are analyzed respectively.It has been found that there is a problem in the sleep dormancy judgment condition of rotation dormancy,and a new rotation hibernation judgment condition is proposed and proved.(3)The clustering routing protocols are sorted out.The main idea,algorithm flow,advantages and disadvantages of LEACH,HEED,PEGASIS and other routing protocols are analyzed emphatically.Based on the analysis of the routing algorithm and the coverage strategy in the previous paper,a clustering routing algorithm based on network coverage and routing is proposed.It takes the blind sleeping node in the rotation sleeping strategy as an influence factor of cluster head selection,and proposes the strategy of parent cluster head according to the characteristics of the integration network.Simulation results show that the improved algorithm has longer lifetime and better energy consumption balance.(4)Analyze and summarize the causes of nonuniform clustering in non-homogeneous routingprotocols and the existing nonuniform routing algorithms.A new node density calculation method is proposed to meet the needs of the radius of the neighbor nodes in the LDUC routing algorithm.At the same time,consider the stochastic problem of cluster head selection,an improved competition algorithm based on time broadcast is proposed.Simulation experiments show that there is a better survival time and a lower network energy consumption coefficient.