基于地形修正的无线传感器网络陷阱空洞检测

发布时间：2018-04-15 03:23

本文选题：无线传感器网络 + 陷阱空洞　；参考：《传感技术学报》2014年06期

【摘要】：无线传感器网络中覆盖空洞大小的识别直接影响陷阱空洞的判断。现有陷阱空洞检测算法均基于理想圆盘覆盖模型,在起伏地形条件下不能准确识别空洞实际大小,导致算法失效。本文针对丘陵地形特点,提出一种基于数字高程地图坡度信息的地形修正方法,通过构建传感器节点方向梯度感知模型,实现起伏地形下的陷阱空洞检测。在此基础上,进一步研究了节点间距、坡度和坡向对陷阱空洞检测结果的影响规律,找到一种根据地形确定节点部署间距的近似计算方法。通过仿真实验,验证了本文方法的有效性,并得出了在保证陷阱空洞的发生概率低于5%时的节点间距取值。该结果为在起伏地形下部署传感器网络提供了参考。
[Abstract]:The recognition of coverage hole size in wireless sensor networks directly affects the judgment of trap holes.The existing trap hole detection algorithms are based on the ideal disk coverage model, which can not accurately identify the actual size of the hole under the undulating terrain conditions, which leads to the failure of the algorithm.In this paper, according to the characteristics of hilly terrain, a terrain correction method based on slope information of digital elevation map is proposed. By constructing the sensor node orientation gradient perception model, the trap hole detection under undulating terrain can be realized.On this basis, the influence of pitch, slope and direction on the detection results of pitfall voids is further studied, and an approximate calculation method for determining node deployment spacing based on terrain is found.The effectiveness of the proposed method is verified by simulation experiments, and the node spacing is obtained when the probability of trap holes is less than 5.The results provide a reference for the deployment of sensor networks under undulating terrain.
【作者单位】：中国科技大学信息科学技术学院;
【分类号】：TP212.9;TN929.5

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