The Applied Research Of NRF24L01 Wireless Sensor Network System

Wireless sensor network has already been widely applied into modern Io Ts system.The wireless sensor network technologies applied into Io Ts system mainly include Zig Bee,Bluetooth and Wi Fi.Among these numerous wireless sensor network technologies,there are high requirements for factors such as low power consumption,development difficulty,data safety and application range.Based on such background,it is proposed to build a wireless sensor network system n RF24L01 low-power consumption wireless sensor chip in this paper.Besides,the algorithm for data security will be designed to carry out application research of n RF24L01 wireless sensor network system.According to the design problem of node low power consumption,the optimization design of devices with large energy consumption according to the energy-saving requirements of node by designing hardware nodes except devices of special components and parts with SMD packaging.According to the development difficulty,through design with non-protocol stack and development with independently designed program,the problem that the protocol stack technology should be firstly grasped to design system is avoided in this paper.It is also necessary to implement MCU real-time monitoring of protocol stack,which will inevitably increase the power consumption of system node.The development difficulty and power consumption of node is reduced through design with non-protocol stack.The experiment proves that the node can work normally and sends and receives data.According to the application range problem,n RF24L01 wireless sensor network system is designed as duplex transmission system in this paper.Based on studying the existing n RF24L01 wireless sensor network system,its advantages are summarized so that the system has certain application value.The experiment indicates that there is no problem with duplex transmission of data.Besides,the application characteristic that n RF24L01 doesn't “control”but “monitor” is improved.As a result,the purpose of “monitoring and control” is achieved.According to safety problem of data transmission,the serial port data analysis algorithm,data system conversion algorithm,data secondary encryption algorithm,wireless data scrambling algorithm,wireless dataanalysis algorithm,data frame integration algorithm are designed in this paper to realize data self-encryption.By combining with AES encryption function of n RF240L01 chip,the transmission safety of wireless sensor network is ensured.The experiment indicates that algorithms have accurate preset functions for data computing and processing.