Design Of Smart Home Device Management System Based On Ipv6 And Lwm2m

Smart home is an important application direction of Internet of Things technology.With the rapid development of Internet of Things technology,more and more smart home devices are connected through the Internet of Things.The number of smart home devices have increased significantly,and the underlying complexity and variety of devices have gradually increased.The demand for IP and lightweight platform-based management of smart home IoT devices is increasing.According to the requirements of smart home device management,the thesis proposes a new IoT platform HEC-IoT(Hybrid Edge Computing IoT)based on the embedded realtime operating system ARM Mbed OS.The HEC-IoT platform architecture is divided into device layer,network access layer,platform layer and application layer.The device management system is a key component of the platform layer,based on the lightweight device management protocol LwM2 M,the thesis designs and implements device management system for smart home based on IPv6 heterogeneous network environment.The system abstracts IoT devices based on the object-resource model,provides unified device management interfaces,and realizes modularization and standardization of smart home device management and control.FOTA is an important function of the device management system,the thesis designs a remote,real-time and secure online firmware upgrade solution based on CoAP block transfer technology.The thesis designs the hardware platform in device layer of HEC-IoT,and implements an all-IPv6 heterogeneous network including Wi-Fi,Ethernet and Thread network interconnection in the network access layer,which realizes access and communication of multi-source heterogeneous nodes.The thesis carried out IPv6 networking,device management and FOTA experiments on the above hardware platform,and verifies the availability of the smart home device management system based on IPv6 and LwM2 M.The experimental results show that the smart home device management system proposed in the thesis realizes the unified access of multi-source heterogeneous devices in the IPv6 network layer,effectively shielding the hardware differences in the device layer and the differences in network interfaces,and improving the scalability of the system.