本文選題：資源約束　切入點：應(yīng)急救援　出處：《浙江工業(yè)大學(xué)》2014年碩士論文

【摘要】：當(dāng)今社會對人的生命與人文關(guān)懷越來越重視關(guān)注,要求對應(yīng)急救援能力的要求越來越高,必須不斷提升災(zāi)害的預(yù)防能力以及救援調(diào)度的效率。近些年無線傳感器網(wǎng)絡(luò)作為一種切實可行的監(jiān)測災(zāi)情信息的新技術(shù),其節(jié)點部署的覆蓋可靠性是關(guān)鍵,因此應(yīng)急條件下無線傳感器網(wǎng)絡(luò)節(jié)點部署的覆蓋可靠性問題是一個亟需解決的實際性問題。本論文主要內(nèi)容有如下5點：(1)從概率角度定義無線傳感器節(jié)點部署的覆蓋可靠性,以某一置信水平下的面積覆蓋率置信區(qū)間為目標(biāo),建立應(yīng)急條件下無線傳感器網(wǎng)絡(luò)節(jié)點部署的覆蓋模型,即節(jié)點數(shù)量、置信水平、感知半徑與面積覆蓋率之間的數(shù)學(xué)表達(dá)式。(2)在求解網(wǎng)絡(luò)覆蓋面積時,提出一種新的解決在特定區(qū)域,多圓相交構(gòu)成的多曲邊形面積覆蓋的算法。這種算法能夠做到精確計算相同圓相交而形成的多曲邊形面積,并且流程相對簡單且計算精度高,使用普通計算機即可快速得到大面積下的計算結(jié)果,是一種有應(yīng)用價值的算法。(3)根據(jù)本文所提出的新算法利用VB編程開發(fā)出無線傳感器節(jié)點部署仿真系統(tǒng),為接下來的無線傳感器節(jié)點隨機拋灑仿真實驗提供了平臺。(4)啟動無線傳感器節(jié)點部署仿真系統(tǒng),設(shè)置好網(wǎng)絡(luò)參數(shù)進(jìn)行大量仿真實驗,通過大量仿真實驗的數(shù)據(jù)分析發(fā)現(xiàn),滿足某一置信水平下的面積覆蓋率的要求至少所需拋灑的節(jié)點數(shù)。(5)通過參數(shù)擬合得到應(yīng)急條件下無線傳感器網(wǎng)絡(luò)節(jié)點部署的覆蓋模型,該式給無線傳感器網(wǎng)絡(luò)節(jié)點部署的參數(shù)設(shè)計提供了依據(jù)。由此推導(dǎo)在某一置信水平下,給出了滿足特定的面積覆蓋率最少所需拋灑的傳感器節(jié)點數(shù)公式,這給最少拋灑多少節(jié)點數(shù)量能滿足無線傳感器網(wǎng)絡(luò)的面積覆蓋率要求提供了參考依據(jù)。
[Abstract]:Nowadays, the society pays more and more attention to the human life and humanity care, and demands the ability of emergency rescue more and more. It is necessary to continuously improve the ability of disaster prevention and the efficiency of rescue dispatch.In recent years, wireless sensor networks as a feasible new technology to monitor disaster information, its node deployment coverage reliability is the key.Therefore, the coverage reliability problem of wireless sensor network node deployment under emergency conditions is a practical problem that needs to be solved.The main contents of this paper are as follows: 5: 1) the coverage reliability of wireless sensor node deployment is defined from the point of view of probability, and the target is the area coverage confidence interval at a certain confidence level.The coverage model of wireless sensor network node deployment under emergency condition is established, that is, the mathematical expression between node number, confidence level, perceptual radius and area coverage.In this paper, a new algorithm is proposed to solve the problem of the area coverage of polygonal edges which is composed of intersecting multiple circles in a specific region.This algorithm can accurately calculate the area of multi-curved edges formed by the intersection of the same circle, and the flow is relatively simple and the calculation accuracy is high. The results of calculation under large area can be obtained quickly by using common computer.According to the new algorithm proposed in this paper, a wireless sensor node deployment simulation system is developed by VB programming.This paper provides a platform for the next simulation experiment of random sprinkling of wireless sensor nodes. (4) start up the simulation system of wireless sensor node deployment, set the network parameters for a large number of simulation experiments, and find out through the data analysis of a large number of simulation experiments,The coverage model of wireless sensor network node deployment under emergency condition is obtained by parameter fitting, which meets the requirement of area coverage at a certain confidence level and at least the number of nodes that need to be sprinkled.This formula provides a basis for the parameter design of node deployment in wireless sensor networks.Under a certain confidence level, the formula of the number of sensor nodes required to satisfy the minimum coverage of a given area is derived.This provides a reference for the minimum number of nodes to meet the requirements of wireless sensor network area coverage.
【學(xué)位授予單位】：浙江工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP212.9;TN929.5
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本文編號：1725793