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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。
In order to monitor the dance track of the overhead transmission lines without distortion, the track of the dancing of the tracks can be restored intuitively through some data fitting algorithms by monitoring the changes of the relative displacements at the monitoring points on the wires in real time. In this context, a wireless sensor network node design based on CC2430 and ADXL330 triaxial accelerometer is proposed in order to realize high efficiency and low cost monitoring of the relative displacement at the monitoring point of the transmission line . After briefly introducing the performance and characteristics of CC2430 and ADXL330 sensor, the hardware design and software design of wireless accelerometer network node are introduced in detail. The MSSTATE_LRWPAN protocol stack is successfully transplanted on the wireless sensor network node, Star network and the more complex tree network. Finally, some results of wireless acceleration sensor network nodes under laboratory environment are given.