环境监测物联网传感器节点设计与实现

摘要

Aiming at the properties that the energy of sensor node in wireless sensor network is generally provided by battery and not easy complementings low energy consumption node which is suitable for realtime monitor of environment internet of things was designed. The nodes can be divided to sensor node and sink node. MSP430F1611 is used as the MCU and CC2420 as RFIC in the sensor node. S3C2410 is used as the MCU and CC2420 is used as RFIC in the sink node. The hardware structure and software flow was given. Finally, the data mining accuracy, energy consumption and drop data packet ratio of node were simulated and analyzed. The result shows the sensor designed can satisfy the demand of internet of things,and has the advantage of high accuracy for data mining, low energy consumption and high reliability.%针对无线传感器网络中的传感器节点通常使用电池供电且能量不易补充的特点,设计了一种低功耗的适用于环境物联网实时监控的节点.节点分为传感器节点和汇聚节点.传感器节点采用MSP430F1611作为微处理器,采用TI公司的低功耗射频芯片CC2420作为通信模块.汇聚节点采用ARM9系列S3C2410作为微处理器,采用CC2420作为通信模块.对节点的硬件结构和软件流程进行了设计.最后,通过实验对网络中节点数据采集精度、节点功耗以及节点丢包率等进行了仿真和分析,结果证明,设计的节点能满足环境监测物联网的需要,具有数据采集精度高、功耗和成本低以及可靠性强的优点.