Design Of Intelligent Terminal For Indoor Security Monitoring Oriented To Edge Computing

With the diversification and complexity of big data application requirements,the data generated by Internet of things terminal equipment is increasing,and the real-time and complexity requirements of data processing are higher and higher.Because edge computing technology can provide more realtime and intelligent computing services for terminals near the source of things or data,it has become a new trend of Internet of things solutions.At present,the traditional Internet of things system still reports in the way of collecting some simple signal or numerical value,with single function and low degree of intelligence,which is difficult to meet the increasingly complex application of intelligent system.Moreover,the big data system needs more flexible and changeable sensor integration and data acquisition and reporting scheme.In view of the above problems,this paper designs and implements an intelligent terminal scheme of indoor security monitoring oriented to edge computing.Firstly,in view of the need for more sensor signal data support in edge computing,a multi-sensor integrated hardware platform architecture with STM32 processor as the core control unit is proposed.Based on the hardware platform architecture,multiple types of sensors can be flexibly deployed to support IOT applications in various scenarios.Secondly,aiming at the simultaneous interpreting of the different requirements of data acquisition,data format,data processing and preprocessing in the edge computing,an embedded software architecture for flexible edge computing is proposed.The architecture can collect data in a variety of interfaces,and achieve different types of sensing data through reasonable planning of storage area.Receive,store,process and forward.The format,length,size and other parameters of the data frame can be flexibly configured to realize the sending of various sensing data and the receiving and processing of control signals.Finally,aiming at the update requirements of edge computing algorithm,this paper designs and implements a remote firmware upgrade scheme for the hardware terminal with STM32 as the core control unit,which can directly upgrade the terminal hardware remote firmware through the cloud platform to achieve different application scenarios The flexible configuration and deployment of the system can greatly reduce the on-site workload of the deployment and operation and maintenance of the Internet of things system.Through the improvement and innovation in hardware platform,embedded software architecture and remote update,compared with the traditional Internet of things system,the application flexibility in the above three dimensions has been greatly improved,so that the hardware terminal can better meet the IOT application requirements based on edge computing technology.At present,the Internet of things intelligent terminal using this design has been applied in the actual smart power monitoring project,which has played an important role in the safety supervision of community residents'electricity consumption.It has repeatedly found major hidden dangers of electricity use,which has improved the effectiveness of community electricity safety supervision,thus verifying the practical application value of this design.