Design Of The Node In Wireless Sensor Network Based On The ZigBee Technique

Node is the basis of the wireless sensor network. Choosing the ZigBee wireless communication standard,nodes of the wireless sensor network the paper designed can overcome common node module high price , deredevelop shortcomings and is easy to promote application.The paper introduced wireless sensor network and ZigBee technology, gave out the hardware circuit of wireless digital module based on the CC2530 chip, and calculated theory transmation distance of the wireless digital module,then designed sendor board circuit, finished the design of one node circuit.Based on above all, protocol stack program and MCU data collecting program were written, a mash wireless temperature sensor network which contained one coordinator node module and nine terminate temperature collecting nodes.Through routing test,temperature test and distance test, it demonstrated that the low power module can transmit 400 meters,and the high module can transmit 2100 meters,with stable transmition and short delay, achieved system indicator demand.