本文選題：WSN + 匯聚節(jié)點(diǎn)�。� 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：隨著微電子與通信技術(shù)的快速發(fā)展,無線傳感器網(wǎng)絡(luò)(Wireless Sensor Network,WSN)近些年也得到了迅速的普及,逐漸走進(jìn)人們的視野中。從最早軍事中的應(yīng)用,到近些年來在智能家居、醫(yī)療護(hù)理、環(huán)境監(jiān)測(cè)等領(lǐng)域,無線傳感器網(wǎng)絡(luò)都有非常廣闊的應(yīng)用需求,是人們目前最為關(guān)注的通信技術(shù)之一。山地環(huán)境監(jiān)測(cè)預(yù)警系統(tǒng)是無線傳感器網(wǎng)絡(luò)目前應(yīng)用最為廣泛的場(chǎng)景之一,對(duì)目標(biāo)區(qū)域進(jìn)行監(jiān)測(cè)和數(shù)據(jù)分析,對(duì)可能的災(zāi)害做出預(yù)警,可以很大程度減少人身和財(cái)產(chǎn)損失。但因其系統(tǒng)多部署在野外,所面臨的環(huán)境極其復(fù)雜惡劣,整個(gè)系統(tǒng)可靠性的也面臨著嚴(yán)峻的挑戰(zhàn)。本文以山地環(huán)境監(jiān)測(cè)預(yù)警系統(tǒng)為基礎(chǔ),關(guān)注于無線傳感器匯聚網(wǎng)絡(luò)的匯聚節(jié)點(diǎn)配置、路由優(yōu)化,節(jié)點(diǎn)原型設(shè)計(jì)等研究。論文首先介紹了無線傳感器網(wǎng)絡(luò)的研究背景,以及其當(dāng)前在環(huán)境監(jiān)測(cè)系統(tǒng)中應(yīng)用和研究現(xiàn)狀,并且對(duì)山地環(huán)境監(jiān)測(cè)系統(tǒng)的拓?fù)淠Ｐ秃途W(wǎng)絡(luò)架構(gòu)進(jìn)行簡(jiǎn)單的概述。并對(duì)無線傳感器網(wǎng)絡(luò)中路由技術(shù)的研究現(xiàn)狀做了總結(jié),說明了無線傳感器網(wǎng)絡(luò)路由的設(shè)計(jì)需求,以及無線傳感器網(wǎng)絡(luò)的主要分類。其次,提出了一種基于重要度的匯聚節(jié)點(diǎn)位置優(yōu)選算法和一種異構(gòu)多中心網(wǎng)絡(luò)的抗毀性評(píng)估方法。傳統(tǒng)位置優(yōu)選方法沒有將節(jié)點(diǎn)的重要度和實(shí)際節(jié)點(diǎn)間的連通性考慮在內(nèi),本算法將節(jié)點(diǎn)重要度與實(shí)際節(jié)點(diǎn)間的連通性都納入考量,采用求解平衡點(diǎn)的方式,優(yōu)化了匯聚節(jié)點(diǎn)位置的選取。繼而,進(jìn)一步提出了創(chuàng)新算法將平衡點(diǎn)方法的計(jì)算復(fù)雜度有效降低。并且論文中給出了對(duì)異構(gòu)多中心網(wǎng)絡(luò)抗毀性評(píng)價(jià)方法,用于位置優(yōu)選算法進(jìn)行量化評(píng)估。然后,設(shè)計(jì)了一種基于多叉平衡樹的自適應(yīng)路由協(xié)議,該協(xié)議側(cè)重于網(wǎng)絡(luò)抗毀性的提升。該協(xié)議包括基于服務(wù)容限的子節(jié)點(diǎn)接入控制機(jī)制和基于負(fù)載系數(shù)的父節(jié)點(diǎn)重新選擇機(jī)制。最后,設(shè)計(jì)并實(shí)現(xiàn)了一種面向環(huán)境監(jiān)測(cè)的無線傳感器網(wǎng)絡(luò)匯聚節(jié)點(diǎn)的原型。詳細(xì)說明了該匯聚節(jié)點(diǎn)原型的核心系統(tǒng)與硬件平臺(tái)的選型,外圍設(shè)備的選型與接口設(shè)計(jì),協(xié)議流程與系統(tǒng)軟件實(shí)現(xiàn)以及封裝等工作。
[Abstract]:With the rapid development of microelectronics and communication technology, Wireless Sensor Network (WSNs) has been popularized rapidly in recent years.From the earliest military applications to the recent years in the smart home, medical care, environmental monitoring and other fields, wireless sensor networks have a very broad application needs, is one of the most concerned communications technology.Mountain environment monitoring and early warning system is one of the most widely used scenarios in wireless sensor networks. Monitoring and data analysis of target areas and early warning of possible disasters can greatly reduce the loss of life and property.However, because its system is mostly deployed in the field, the environment is extremely complex and harsh, and the reliability of the whole system is also facing a severe challenge.Based on the mountain environment monitoring and early warning system, this paper focuses on the cluster node configuration, routing optimization and node prototype design of wireless sensor convergence network.Firstly, this paper introduces the research background of wireless sensor network, its application and research status in environmental monitoring system, and gives a brief overview of the topology model and network architecture of mountain environment monitoring system.The research status of routing technology in wireless sensor networks is summarized, the design requirements of routing in wireless sensor networks and the main categories of wireless sensor networks are explained.Secondly, an algorithm for location optimization of convergence nodes based on importance and a method for evaluating the survivability of heterogeneous multi-center networks are proposed.The traditional location optimization method does not take into account the importance of nodes and the connectivity between actual nodes. In this algorithm, both the importance of nodes and the connectivity of actual nodes are taken into account, and the equilibrium point is solved.The location of the convergent node is optimized.Then, an innovative algorithm is proposed to effectively reduce the computational complexity of the equilibrium point method.A method for evaluating the invulnerability of heterogeneous multi-center network is presented in this paper, which is used to evaluate the location optimization algorithm quantitatively.Then, an adaptive routing protocol based on multitree is designed, which focuses on the improvement of network survivability.The protocol includes a child node access control mechanism based on service tolerance and a parent node reselection mechanism based on load coefficient.Finally, a prototype of wireless sensor network convergence node for environmental monitoring is designed and implemented.The selection of the core system and hardware platform, the selection and interface design of peripheral equipment, the implementation of protocol flow and system software, and the encapsulation of the prototype are described in detail.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP212.9;TN929.5

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本文編號(hào)：1754777