發(fā)布時(shí)間：2018-04-21 01:02

  本文選題：覆蓋盲區(qū) + 三維地形修正��； 參考：《傳感技術(shù)學(xué)報(bào)》2016年01期

【摘要】：三維地形下傳感器節(jié)點(diǎn)經(jīng)隨機(jī)部署后,由于地形起伏的特點(diǎn),會(huì)導(dǎo)致覆蓋盲區(qū)的產(chǎn)生。為了能夠有效檢測(cè)覆蓋盲區(qū),本文提出了一種基于三維地形修正的無線傳感器網(wǎng)絡(luò)覆蓋盲區(qū)檢測(cè)方法,通過建立單位球感知模型,隨機(jī)部署傳感器節(jié)點(diǎn),對(duì)節(jié)點(diǎn)進(jìn)行Delaunay三角剖分。計(jì)算出三角形的外接圓,根據(jù)邊界檢測(cè)算法求出覆蓋盲區(qū)邊界,并且剔除假邊界節(jié)點(diǎn),得出改善后的邊界。計(jì)算傳感器節(jié)點(diǎn)的坡度和坡向信息,根據(jù)地形修正原理計(jì)算出傳感器節(jié)點(diǎn)的實(shí)際探測(cè)半徑,最終得出覆蓋盲區(qū)的最小邊界。仿真實(shí)驗(yàn)結(jié)果驗(yàn)證了該檢測(cè)方法可有效檢測(cè)三維地形下的覆蓋盲區(qū),對(duì)于起伏較大的地形也有一定的適應(yīng)性。
[Abstract]:After random deployment of sensor nodes in 3D terrain, blind areas will be covered due to the characteristics of topographic fluctuation. In order to detect coverage blind area effectively, this paper presents a new method of blind area detection based on 3D terrain correction in wireless sensor network. By establishing unit sphere perception model, sensor nodes are deployed randomly. The nodes are triangulated by Delaunay. The outer circle of the triangle is calculated, and the boundary of the covered blind area is calculated according to the boundary detection algorithm, and the improved boundary is obtained by eliminating the false boundary nodes. The slope and direction information of sensor nodes are calculated, and the actual detection radius of sensor nodes is calculated according to the principle of terrain correction. Finally, the minimum boundary of coverage blind area is obtained. The simulation results show that the proposed method can effectively detect the blind areas in 3D terrain, and has a certain adaptability to the terrain with large undulation.
【作者單位】： 桂林理工大學(xué)信息科學(xué)與工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(E050603) 廣西高等學(xué)�？蒲许�(xiàng)目(YB2014157) 廣西自然科學(xué)基金項(xiàng)目(2015GXNSFBA139254)
【分類號(hào)】：TP212.9;TN929.5

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本文編號(hào)：1780220