Design And Implementation Of Children Position Monitor System Based On RFID

The main purpose of this paper is to use the Internet of things technology reasonably,and use light and safe children safety monitoring device, so that we can monitor children’sposition at close range. The software realized in the thesis can collect these locationsinformation and transmit information to a remote computer, for recording and analysis ofthese data.The basis of this thesis is the technology research, and the goal is application. Throughcareful demand analysis, elaborate system design, and effective system implementation, awhole process of software’s design and development is completed.Firstly, this thesis focuses on the research background and research significance.Secondly, some basic technologies are studied, including the technology of the Internet ofthings, RFID, Internet of things technology application architecture and positioning method.These technologies are the basis for the realization of the system. Finally, the demandanalysis, system design and system realization are carried on, and the whole process isdescribed in the thesis.In basic technology research, this thesis has mainly studied the positioning method. Thepositioning research is starting from the commonly used positioning method, includingdistance positioning method, feature positioning method and reference point positioningmethod. Based on the existing positioning methods, the thesis improved the reference pointpositioning method as the location algorithm of the software system. In the improvedalgorithm, the distance positioning method is integrated into the reference point locationmethod. The role of reference points, not for the state of the reference value, but for themodification of parameters of the empirical formula of signal attenuation.This thesis describes the design of the system by using UML. The functionalrequirements of the users are described by use case diagrams, which depict the functionboundary and functions description. After the determination of the functions of the system, it needs the overall structure design of the software. In the thesis the architecture design ofthe system is described from two aspects: the hardware architecture and softwarearchitecture. The hardware architecture design depicts the composition of system hardwareand connection. Software architecture design describes logic partition of the software andthe information interaction mode among the every logical composition. A kind of hierarchicalsoftware architecture is adopted to increase system scalability and maintainability. Inaddition, the process flow charts are used to depict key business processes to displaybusiness information.On the basis of system design, this thesis also describes some of the key parts in thesystem implementation, including software architecture implementation, abnormal alarmimplementation based on the pipe filter pattern, RFID communication and data interactionand multi thread data processing. The realization of these key parts determines the efficiencyof the system. The software adopts the.NET component technology to achieve the level ofsoftware architecture in the package. In the abnormal alarm implementation based on thepipe filter pattern, the key classes are defined, and the multiple threads lock on the object isconsidered. RFID communication and data interaction and multi thread data processingdescribes the communication mechanism and communication realization of RFID.