Research On The Key Technology Of Smart Home System Based On WSN

This paper explores the key technologies for realizing the target functions of smart home systems,explores the power consumption problems,security and stability problems of current smart home systems,and compares the key technologies used in smart home systems.A smart home system with low security,high stability and stability.On the basis of consulting a large number of relevant literatures at home and abroad,this paper explores the current situation and development trend of smart home,studies the key technologies in the smart home system,and proposes the smart home control system based on Wireless sensor network technology(WSN)for verification.According to the requirements of low power consumption,the node adopts the design scheme combining SoC and rf chip,and USES CC2538 as the hardware control chip of the node.The chip has high integration and can expand different kinds of sensors.Through the reserved interface of the chip,different sensors are connected to realize the collection of information about the internal environment of smart home,including light intensity,temperature and humidity,and harmful gases.The smart home system adopts dynamic power management scheme,ZigBee short-range wireless communication technology,and sleep mode awakening.The test shows that the technology can effectively reduce power consumption.According to the security requirements,SM4 symmetric cipher algorithm is adopted as the encryption algorithm for data transmission and access authentication to ensure the safe transmission of information within the network.Network communication test and node information acquisition test are carried out on the system to verify the stability of the smart home system.The test results show that the designed smart home system platform can meet the practical application requirements.