Research Of Wireless Sensor Network Node Based On Zigbee Protocol On Terminal Power Distribution Equipment Group

With the development of science and technology,people's demand for society is getting higher and higher,and all kinds of power equipment are becoming more and more popular,thus increasing the building energy consumption.In order to realize the real-time monitoring and control of the operation status of power equipment in buildings and to obtain the operating parameters of power equipment,the wireless sensor network node of the terminal power distribution equipment group is designed.Wireless sensor network nodes designed in this paper can be divided into three types according to the different functions: which are router node,terminal node and coordinator node.The terminal node / router node is composed of power module,sensor module,data processing module,wireless transceiver module and other modules.Compare with them,the only difference between coordinator nodes is that there is no sensor moduleand the other modules have the same structure.The core chip of data processing unit and radio frequency transceiver module adopts TICC2530 with integrated enhanced 8051 single-chip microcomputer and radio frequency chip,the core chip of the sensor module uses a CS5460 A chip with high speed power calculation function,and the power module adopts REG1117₃.3,which can supply +5V and +3.3V power supply at the same time.In wireless sensor networks which core chip is CC2530,the transplantation of node RF module and timer module is completed through the TinyOS operating system.The software uses Z-Stack protocol stack based on Zigbee protocol,and gives the software flow chart of the terminal node,coordinator node and router node.Finally,the RSSI?Received Signal Strength Indication?value test and packet loss rate test were used to test the communication performance of each node,and the test results were analyzed.Using the KingView software design the monitor interface for equipment group in building,and the function of the node is tested,and the results show that the terminal nodes in the Network can transmit data information to the coordinator in the monitoring area,and sent to PC,in the end the collected voltage and current values of electrical equipment displayed in monitoring interface.In summary,the wireless sensor network node designed in this paper realizes the real-time monitoring of the voltage and current value of building electrical equipment,and can control the switch status of the electrical equipment,thus effectively reducing the energy consumption of building electrical equipment.