Research And Application Of Context Aware Technology In Smart Home

In recent years, there are a large number of smart home research projects at home and abroad, Many scholars in the study of it,a lot of innovative concepts have been proposed, and some large enterprises have introduced smart home products, and the technology has achieved market. But it is worth noting that currently the nature of majority of smart home products is still human control smart devices,just added some intelligent means of control, and most are single intelligent device control. Such products are not really "smart", it is difficult to meet the demand for smart home.Context-aware technology is a relatively new concept with the pervasive computing research developed, by means of the sensor and its associated technology enables computers to "sense" of the current situation and accordingly to make some response. With the help of context-aware technology used in smart devices can provide personalized service based on the actual home environment, this will be an important research direction of smart home and an important means to achieve complete "smart" in smart home system.Facing the problem of lacking of automatic service and single control of devices study the common application modelof context-aware based on the researchoftechnology of context-aware used in smart home.Then design data,context and service modeling.After that, uses smart LED light as the object,and use interactive music context-aware as the main entry point, research the practical application of context-aware technology used in smart home systems. And with the wireless Mesh networking technology research and carry out smart devices wireless Internet,so that the devicescan achieve autonomy personalized service and collaborative service. Design of context-aware application system in Smart Home based on interactive music is divided into four main modules:context data sampling module, context data analysis module, context-awareservice module andsmart device Mesh Networking Module. Wherein the context data sampling module is responsible for the raw data sampling and pretreatment of music.Context data analysis module is responsible for Fourier transformingof sampling data and subsequent analysis of the spectrum of information and services programs reasoning,it is the core of the system. Context-aware service module to complete the adjustment of intelligent LED light service plan changes based on contextual information function.smart device Mesh Networking Module is the study of multiple smart LED lights CSRmesh Networking based onBluetooth communication,to intelligent devices interaction service. Experimental results show that the system can complete adjusting services program based on the music scene changewithin milliseconds, responsive and accurate.The wireless CSRmesh networking connection based on Bluetooth communication is stable.