Design And Implementation Of Intelligent Security System Based On Microservice Architecture

With the continuous development of economic society and the deepening of spiritual civilization construction,people are paying more and more attention to the safety of their production and living environment,and the demand for security systems is also increasing.However,the traditional security system relies heavily on manpower,and its timeliness and reliability are relatively low,which has been gradually replaced by the intelligent security system.The intelligent security system has the functions of identity authentication,24-hour monitoring,real-time alarm and so on,which can better meet people’s security needs.Traditional security systems often rely on video surveillance,but this way has many limitations.However,the sensing method based on radio frequency field,because of its advantages of no illumination and high ranging accuracy,becomes the ideal choice in these situations.At the system architecture level,because the intelligent security system needs frequent communication with hardware equipment,if the system adopts the traditional single architecture,the system call level is easy to be fuzzy,and the business logic between services is easy to be coupled.When the hardware equipment or data service fails,it is easy to cause the failure or even collapse of the whole system,and the availability is low;and the use of microservice architecture can clearly divide the functions of each part of the system,and the failure of some microservices will not affect the operation of other functions of the system.The high scalability of microservices also facilitates the development and upgrading of system functions in the future,and adapts to the needs of high availability and fast iterative products in the security field.Aiming at the defects of video monitoring method and the disadvantages of monolithic architecture,this thesis designs an intelligent security system based on microservice architecture,which uses radar and Wi-Fi joint sensing monitoring mode.Users can use the fine-grained perception of Wi-Fi devices on the target gait to achieve the identity authentication of the personnel entering the area.The radar equipment can realize the precise location and track tracking of human targets.Users can monitor the area in real time and view the movement track of personnel.When a strange target intrudes into an area,the system will send out an alarm message and notify the user by email.In the process of system development,the flexible use of microservice components ensures the high availability and reliability of system services,and finally completes the research and development of intelligent security system.The research work of this thesis is mainly divided into several aspects:1)Study the existing problems and requirements in the field of intelligent security,research the related technologies of microservice,conduct a complete business analysis on the intelligent security system,determine and design the overall architecture of the system,divide the responsibilities of each microservice,and make a detailed division of its functional modules;2)On the basis of requirement analysis and outline design,based on spring Cloud microservice framework has built a complete and available microservice project;on the one hand,it has realized the basic functions of microservice components,including service discovery,service gateway,inter service communication and service fault-tolerant processing;on the other hand,it has designed the database,given the detailed implementation process of microservice business,including the key process of the functional module,and defined the design of the relevant server interface It realizes the functions of trace display,identity authentication,data display,user management,intrusion alarm and so on;3)The combination of radar and Wi-Fi based sensing means makes up for each other’s shortcomings.In the radar data microservice,particle filter algorithm is applied to data processing,the target association method based on Hungarian algorithm is proposed,and the track correction method based on Dijkstra algorithm is proposed;in the Wi-Fi data microservice,a gait recognition model based on CSI is proposed.The methods and achievements of this thesis have certain reference value for the realization of the micro service of the intelligent security system.