采用ZigBee芯片的无线加速度传感器网络节点的实现

Designation of Wireless Acceleration Sensor Network Node Using ZigBee Chip

为了不失真地实现对架空输电线路导线舞动轨迹的监测,通过实时监测导线上各监测点处的相对位移的变化,再经过一定的数据拟合算法可以直观地还原导线舞动的轨迹。在此背景下提出了一种基于无线单片机CC2430以及三轴加速度传感器ADXL330为核心的无线加速度传感器网络节点的设计方案,以实现对输电线路导线监测点处的相对位移的高效率、低费用的监测。先简单介绍了CC2430单片机、ADXL330传感器的性能及特点后,再详细介绍了无线加速度传感器网络节点的硬件设计以及软件设计,并且在无线传感器网络节点上成功移植了MSSTATE_LRWPAN协议栈,实现了组建简单的星型网络以及较为复杂的树状网络。最后给出了无线加速度传感器网络节点在实验室环境下的部分测试结果。

To monitor the tracks of conductor galloping of overhead transmission lines intuitively, the variation of relative displacement of every monitored site on conductor can be on-line monitored to restore the tracks of conductor galloping accurately based on some data fitting algorithms. In this context, a wireless acceleration sensor network node based on wireless single chip processor CC2430 and three-axis acceleration sensor ADXL330 is designed in this paper to monitor the relative displacement of every monitored site on conductor with high efficiency and low cost. The performance and characteristics of CC2430 and ADXL330 are introduced compactly. The designations of hardware as well as software of wireless network node are introduced in details. Moreover, the protocol stack of MSSTATE_LRWPAN is transplanted in this node successfully to form a star network or tree network. Lastly, some tested results gained under laboratory environment are shown in this paper.