| Internet of Things is a kind of network mode that has rapidly emerged after the Internet and mobile Internet have reached a certain stage.It broadens the scope of different computer interconnections in traditional networks to the interconnection of all things,thus greatly expanding the capabilities and scope of network connectivity.The application of the Internet of things has penetrated into various industries in the society.As one of its important applications,smart home has received the attention and research of major manufacturers,and its development speed is getting faster and faster.Research on smart homes involves network communication technologies,sensor technologies,embedded technologies,and network security technologies.Because of its wide coverage,high technical requirements,and the application of smart homes has become a hot spot,its research is particularly important.At present,although smart home is developing rapidly,it is still in an immature stage and there are many problems need to be resolved urgently.After analyzing and researching the current smart home related technologies,the paper proposes a simple and practical communication protocol and security authentication protocol based on the network architecture and communication features of smart homes and the security issues in smart homes.The main accomplishments of the thesis include:1)A system architecture of the smart home network was designed.By analyzing the current smart home related technologies and researching the network architecture and communication features of smart homes,the smart home network system architecture was designed.Network architecture is the basis for maintaining the design and operation of smart home network.A reasonable network architecture will play an important supporting role for the effectiveness and correctness of system work.2)A security scheme for smart home was designed.Aiming at the characteristics of large amount of data and high security requirements in smart home network,the data in the smart home is classified into encryption levels.Different encryption levels are encrypted using different encryption algorithms and methods.Intelligent terminal users and remote terminal users in smart homes are authenticated in the network access and communications to ensure communication security in smart homes..3)A smart home communication interaction and security authentication protocol was designed.The protocol mainly includes network access protocols,security authentication protocols and monitoring and control protocols for intelligent terminal devices.Intelligent terminal devices in smart homes include a variety of home appliances and sensor devices.The types of data generated are numerous and the data is constantly being updated.A reasonable and efficient protocol helps the smart home system to operate normally.4)A smart home prototype system was designed and developed.In the prototype system,a remote terminal device uses a mobile phone and an app for smart home management was developed.The tomcat server is used to simulate the cloud platform in the smart home,and the network communication of the terminal device in the smart home is realized. |
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