本文選題：無線傳感器網(wǎng)絡(luò) + 高速公路��； 參考：《南京理工大學(xué)》2015年碩士論文

【摘要】：隨著我國經(jīng)濟的飛速發(fā)展,高速公路通車?yán)锍桃苍诳焖俚脑鲩L,伴隨而來的是高速公路上引發(fā)的惡性交通事故的增多。其中,相當(dāng)多的事故是由惡劣天氣造成的。團霧被稱為高速公路上的“殺手”,因為團霧經(jīng)常出現(xiàn)在清晨,這個時間段司機注意力較為懈怠和疲倦,而團霧的出現(xiàn)又很突然,并且范圍小,不易被氣象預(yù)報檢測到,在局部形成的濃霧又使得司機很難把握路況,極易造成連環(huán)追尾事故。本文就是針對這一問題展開研究工作的。本設(shè)計旨在解決團霧這種局部性較強的低能見度氣象造成的高速公路安全問題。系統(tǒng)由一組安置在高速公路沿線的能見度檢測器組成,使用無線傳感器網(wǎng)絡(luò)技術(shù)作為通訊手段,采集的數(shù)據(jù)通過主控制器上傳到當(dāng)?shù)氐目刂浦行摹８鶕?jù)我國的道路管理辦法,能見度是道路管理決策的主要參考指標(biāo),所以本系統(tǒng)提供的團霧區(qū)域內(nèi)能見度信息可以幫助管理者作出正確的決策。本系統(tǒng)沒有使用傳統(tǒng)的有線通訊方式,改用無線方式實現(xiàn)區(qū)域內(nèi)的互連互通,降低了區(qū)域內(nèi)的通訊成本。另外,系統(tǒng)附加了車輛檢測器,用來在濃霧條件下為管理員提供霧區(qū)內(nèi)的路況信息,團霧造成的事故多是前后車輛車速相差較大引起的,管理員可以根據(jù)團霧區(qū)域內(nèi)的實際車速制定不同的管理策略。本設(shè)計中用無線傳感器網(wǎng)絡(luò)替代傳統(tǒng)的有線技術(shù),在實現(xiàn)基本的網(wǎng)絡(luò)互通的基礎(chǔ)上,研究了基于ZigBee技術(shù)的無線網(wǎng)絡(luò)安全問題。無線網(wǎng)絡(luò)安全問題是當(dāng)下關(guān)注度較高的課題,而應(yīng)用于高速公路監(jiān)控領(lǐng)域的無線網(wǎng)絡(luò)技術(shù)更加注重通信的安全性,本系統(tǒng)從設(shè)備管理、安全加密等角度,論證了ZigBee技術(shù)的安全性,并有針對性的作出了實驗測試,結(jié)果表明正確的利用ZigBee技術(shù)可以有效地保證無線通訊的安全性。最后,經(jīng)過一系列的測試和驗證表明系統(tǒng)具有較高的可行性,具備一定的實用價值。
[Abstract]:With the rapid development of China's economy, the mileage of freeway traffic is also growing rapidly, accompanied by the increase of malignant traffic accidents caused by expressway. Among them, quite a few accidents are caused by bad weather. The fog is known as the "killer" on the freeway, because the fog often appears in the early morning. During this time period, the driver's attention is slack and tired, and the fog appears suddenly and has a small area, which is not easily detected by the weather forecast. The dense fog formed locally makes it difficult for drivers to grasp the road conditions and can easily lead to a series of rear-end accidents. This paper is aimed at this problem to carry out research work. The purpose of this design is to solve the safety problem of freeway caused by strong local low visibility weather. The system consists of a group of visibility detectors placed along the freeway. The wireless sensor network technology is used as the communication means. The collected data is uploaded to the local control center through the master controller. According to the road management method in our country, visibility is the main reference index of road management decision, so the visibility information provided by this system can help managers to make correct decision. This system does not use the traditional wired communication mode, but uses wireless mode to realize the interconnection and interworking in the region, which reduces the communication cost in the region. In addition, a vehicle detector is attached to the system, which is used to provide information on road conditions in the fog area for administrators under heavy fog conditions. Accidents caused by fog are mostly caused by large differences in vehicle speed before and after. The administrator can make different management strategies according to the actual speed in the fog area. In this design, the wireless sensor network is used to replace the traditional wired technology. Based on the basic network interworking, the security of wireless network based on ZigBee technology is studied. The problem of wireless network security is a subject of high concern at present. However, the wireless network technology applied in the field of highway monitoring pays more attention to the security of communication. This system is based on the aspects of equipment management, security encryption and so on. The security of ZigBee technology is demonstrated, and the experimental results show that the correct use of ZigBee technology can effectively ensure the security of wireless communication. Finally, a series of tests and verification show that the system has high feasibility and practical value.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U495

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相關(guān)期刊論文 前2條

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2 胡思濤;朱艷茹;;團霧天氣對高速公路交通安全的影響機理研究[J];中外公路;2013年02期

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本文編號：1873849