Research And Implementation Of NDN Device Direct Connect Communication Technology For Smart Home

With the continuous improvement of people's living standards,smart home is becoming more and more popular.The smart home Io T system,which is constructed by interconnection of various intelligent devices,can provide more convenient and personalized service for people's daily life.Considering the current development of smart home,there are still many problems and challenges to be solved.The first is to enhance the mobility and dynamics of the network,the second is to improve the demand for network security,and the last is to increase the demand for localized communication.However,the current TCP/IP network architecture is difficult to adapt to the current development needs of smart home,so Named Data Networking(NDN),as a new further internet architecture,has become a hot spot in the research of the future internet due to its architecture's advancement and uniqueness.Therefore,the research and implementation of NDN device direct connection communication technology for smart homes has important theoretical significance and application value.The thesis carries out practical exploration on the application of smart home with NDN as the core to realize secure direct connection communication.The main work contents are as follows:(1)Design and implement a remote control method for pluggable devices based on NDN network.The NDN protocol library and forwarding engine are used to achieve secure device direct communication at the network layer.Users can remotely operate pluggable devices without network functions through mobile phones.This solution has general feasibility.If it needs to be replaced with other pluggable devices similar to the thesis,only a small range of changes can be completed.(2)Design and implement a direct connection communication method for NDN network based on BLE protocol.Using a lightweight NDN protocol library based on the Internet of Things scenario,the bottom layer uses the BLE protocol,combines the BLE protocol with NDN protocol,develops remote control applications for devices,and implements more complex security guarantees and device direct connection communication.(3)The method is implemented on Raspberry Pi,nRF52840 Bluetooth development board and Android mobile phone,and the effectiveness of the method is verified.