Research On Key Technologies Of University Laboratory Management System Based On ZigBee

With the vigorous development and extensive application of the wireless network sensor technology and the internet of Things technology,as its very excellent information transmission network,ZigBee network technology also ushered in an unprecedented development help.Because ZigBee has the advantages of low power consumption,low cost,etc.,and uses wireless self-organizing network(ad hoc network)design concept in the network design,and also has the ability for self-healing and self-organization,ZigBee has received a very important position in wireless sensor network and Internet of things.In this paper,the characteristics of ZigBee technology,protocol stack model and its application are briefly introduced.The design and implementation process of ZigBee protocol MAC layer and network layer are expounded and studied in detail.Secondly,the protocol architecture of ZigBee,current research,device type,node classification,and the use of the field are roughly described.Then,based on the detailed research on the existing ZigBee routing algorithm AODVjr and Cluster-Tree,this paper proposes a new algorithm based on clustering idea and spare cluster.In this paper,the ZigBee routing algorithm is not high and the control of energy consumption is insufficient.The first idea of the routing algorithm is to optimize the improvement.In the improved algorithm,in order to simplify the process of routing addressing,the concept of maximum address and minimum address in the cluster is introduced.This can greatly shorten the delay between the cluster and the cluster,and reduce the flooding problem of the broadcast.After the introduction of the improved algorithm,the simulation experiment of the algorithm is carried out.The article can be used to simulate the algorithm on the Unix system.The simulation experiment can be carried out on the NS2 experiment platform running on the Windows system,and the corresponding simulation results are obtained.At last,the improved algorithm is proved by the two indexes of packet delivery rate and residual energy ratio.Finally,this paper uses a J2EE-based university's laboratory management system to apply the previous research to practical projects.In this process,the network topology system uses the ordinary tree structure,and the network module chip selects the current mainstream ZigBee chip.Read data firstly through the C ++ language,and then obtain data through Interface provided by the java language call C + +,and finally show it in the java as a platform for the development of the system,while the system of laboratory management information for further subdivision,management becomes more facilitate.The most important is that,in this system,through the ZigBee network technology,laboratory environmental monitoring(currently only temperature and humidity monitoring)can be achieved.And the system uses the current hot RFID tags on the laboratory equipment,devices,etc.,to achieve unified management of the equipment and devices throughout the life cycle monitoring and management.