本文選題：無線傳感器網(wǎng)絡 + 陷阱空洞��； 參考：《傳感技術學報》2014年06期

【摘要】：無線傳感器網(wǎng)絡中覆蓋空洞大小的識別直接影響陷阱空洞的判斷。現(xiàn)有陷阱空洞檢測算法均基于理想圓盤覆蓋模型,在起伏地形條件下不能準確識別空洞實際大小,導致算法失效。本文針對丘陵地形特點,提出一種基于數(shù)字高程地圖坡度信息的地形修正方法,通過構建傳感器節(jié)點方向梯度感知模型,實現(xiàn)起伏地形下的陷阱空洞檢測。在此基礎上,進一步研究了節(jié)點間距、坡度和坡向對陷阱空洞檢測結果的影響規(guī)律,找到一種根據(jù)地形確定節(jié)點部署間距的近似計算方法。通過仿真實驗,驗證了本文方法的有效性,并得出了在保證陷阱空洞的發(fā)生概率低于5%時的節(jié)點間距取值。該結果為在起伏地形下部署傳感器網(wǎng)絡提供了參考。
[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.
【作者單位】： 中國科技大學信息科學技術學院;
【分類號】：TP212.9;TN929.5

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本文編號：1752306