Smart Home System Design Based On Psia

Smart Home System is entering households as people’s living standards are improving. While advance technical make it possible to supports more devices connected to home system, there are lots of challenges emerging when upgrading it. A potential convenient and fast solution is PSIA extended JSON protocol (PSIAX JSON), which standardizes the interface of integrating hardware and software for Smart Home System on the basis of PSIA protocol. PSIAX JSON can be customized to meet specific requirements of various devices, and is compatible with extension of text-based-protocol for new types of devices. Therefore, command interpreter concentrates on active area in modules, permitting both original and new protocols to work compatibly in one system. New protocol can instantly respond to new connecting devices with no need to shut down working system, which is the market demand for Smart Home System.The necessity of R&D of PSIA-based Smart Home System is explained after defects of the current system are analyzed, such as that the system shall be shut-down during upgrade, it will take a long cycle to add new devices. Then new functions of the system are described, such as remote access, control/query, as well as auto-update, which is followed by the analysis of status-reporting, processing, and core work flow of data transfer in network. With the subsequent decision being, MVC framework is chose as system design, the Open API and three sub-systems-control panel, control client and remote control app are provided. Also, the design of the communication protocol was described, which based on PSIA and JSON with emphases on its high performance and low latency, including high-speed data transfer and data encryption/decryption. Finally, some necessary discussion of the security, extensibility, and operations of new system are included.