本文選題：定位 + 傳感器網(wǎng)絡(luò)��； 參考：《大連海事大學(xué)》2017年碩士論文

【摘要】：隨著航運(yùn)事業(yè)的發(fā)展,越來越多的物品運(yùn)輸都是通過航運(yùn)以集裝箱的形式完成的,海洋運(yùn)輸?shù)臅r候也時常會發(fā)生集裝箱的落水事故。當(dāng)落水事故發(fā)生時,協(xié)助打撈部門對落水的集裝箱進(jìn)行及時快速的打撈,可以把落水集裝箱及其里面裝載的物品會對航道及海洋環(huán)境造成二次污染的損失降低到最小。因此,對于落水集裝箱的探測定位是一個重要的研究課題。無線傳感器網(wǎng)絡(luò)在環(huán)境檢測、信息采集、目標(biāo)定位以及目標(biāo)追蹤等領(lǐng)域有著廣泛的應(yīng)用。傳統(tǒng)的落水集裝箱探測定位技術(shù)存在探測定位效率低、成本高的不足。無線傳感器網(wǎng)絡(luò)具有成本低、自組織、低功耗的特點(diǎn),適合運(yùn)用在落水集裝箱的探測定位系統(tǒng)中。本文結(jié)合無線通信技術(shù)和傳感器網(wǎng)絡(luò)提出了一種基于水聲信號處理的落水集裝箱探測定位系統(tǒng),利用水面探測節(jié)點(diǎn)與安裝在落水集裝箱上的水聲信標(biāo)之間的水聲通信,實(shí)現(xiàn)對水下集裝箱的探測與測距,并在此基礎(chǔ)之上實(shí)現(xiàn)對水下集裝箱的定位。首先,研究了常用的無線傳感器網(wǎng)絡(luò)定位技術(shù),并針對落水集裝箱探測定位的特點(diǎn)設(shè)計了一種高效的落水集裝箱測距技術(shù)方案,以達(dá)到降低能耗、提高定位效率的目的。為了避免對不同落水集裝箱探測定位時產(chǎn)生的干擾問題,還提出了一種基于時頻編址技術(shù),以區(qū)分不同的集裝箱。然后,利用水聲通信開發(fā)板編程實(shí)現(xiàn)了測距、時頻編址和相應(yīng)的定位功能。論文還就水面探測傳感器網(wǎng)絡(luò)的布置問題進(jìn)行了研究,建立了4覆蓋數(shù)學(xué)優(yōu)化模型,并對該數(shù)學(xué)模型的求解結(jié)果進(jìn)行驗(yàn)證。最后結(jié)合硬件平臺對系統(tǒng)的功能進(jìn)行了實(shí)驗(yàn)測試,并給出測試結(jié)果及分析。
[Abstract]:With the development of shipping, more and more goods are transported by shipping in the form of containers. When the falling accident occurs, assisting the salvage department to salvage the falling container in time and fast, can reduce the loss of secondary pollution to the waterway and marine environment caused by the falling container and its contents. Therefore, the detection and positioning of falling containers is an important research topic. Wireless sensor networks (WSN) are widely used in environment detection, information collection, target location and target tracking. The traditional technology of detecting and positioning of falling water container has the disadvantages of low efficiency and high cost. Wireless sensor networks have the characteristics of low cost, self-organization and low power consumption. Combined with wireless communication technology and sensor network, this paper presents a positioning system for underwater containers based on underwater acoustic signal processing, which uses underwater acoustic communication between water surface detection nodes and underwater acoustic beacons installed on falling containers. The detection and ranging of underwater container are realized, and the positioning of underwater container is realized on this basis. First of all, the commonly used wireless sensor network positioning technology is studied, and an efficient location technology scheme is designed to reduce energy consumption and improve positioning efficiency according to the characteristics of overboard container detection and positioning. In order to avoid the interference in detecting and locating different overboard containers, a time-frequency addressing technique is proposed to distinguish different containers. Then, the underwater acoustic communication development board is used to program ranging, time-frequency addressing and corresponding positioning functions. In this paper, the layout of water surface detection sensor network is studied, and the 4-coverage mathematical optimization model is established, and the solution results of the mathematical model are verified. Finally, the function of the system is tested with hardware platform, and the test results and analysis are given.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.3;TP212.9

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本文編號：1930968