【摘要】：交通運(yùn)輸是一個(gè)國(guó)家的經(jīng)濟(jì)命脈,而交通基礎(chǔ)設(shè)施中的一些樞紐結(jié)構(gòu)則是關(guān)系著整個(gè)交通運(yùn)輸行業(yè)健康發(fā)展的關(guān)鍵組成部分,對(duì)這些要道建筑結(jié)構(gòu)的建設(shè)和維護(hù)對(duì)于一個(gè)國(guó)家基礎(chǔ)設(shè)施建設(shè)來(lái)說(shuō)是一個(gè)十分重要組成部分,這同時(shí)也反映了一個(gè)國(guó)家的經(jīng)濟(jì)發(fā)展與科技力量。對(duì)橋梁進(jìn)行監(jiān)測(cè)不僅可以及早發(fā)現(xiàn)橋梁的病害情況,而且能為維修和養(yǎng)護(hù)管理決策提供可靠的依據(jù)和指導(dǎo)。本文設(shè)計(jì)了一種基于6Lo WPAN無(wú)線傳感網(wǎng)絡(luò)的智能橋梁結(jié)構(gòu)健康監(jiān)測(cè)系統(tǒng)。本系統(tǒng)將3G無(wú)線傳輸技術(shù)和6Lo WPAN技術(shù)相結(jié)合,構(gòu)建了一個(gè)無(wú)線傳感網(wǎng)絡(luò)橋梁結(jié)構(gòu)狀態(tài)監(jiān)測(cè)平臺(tái),建立了數(shù)據(jù)采集節(jié)點(diǎn)、中心節(jié)點(diǎn)(網(wǎng)關(guān))和遠(yuǎn)程服務(wù)器這三者組成的多層次的網(wǎng)絡(luò)架構(gòu)。系統(tǒng)通過(guò)安裝在橋梁各個(gè)部位的各類傳感器來(lái)采集相關(guān)數(shù)據(jù)參數(shù),應(yīng)用6Lo WPAN模塊將數(shù)據(jù)匯聚至中心節(jié)點(diǎn)(網(wǎng)關(guān))處,再由中心節(jié)點(diǎn)(網(wǎng)關(guān))通過(guò)3G模塊將數(shù)據(jù)傳送至后方服務(wù)器。為了滿足系統(tǒng)長(zhǎng)期部署在野外的特殊需求,本文還為此設(shè)計(jì)了太陽(yáng)能和鋰電池雙供電的電源系統(tǒng)。為了確保訪問(wèn)質(zhì)量以及能讓用戶很方便地遠(yuǎn)程登錄Web站點(diǎn)來(lái)查詢橋梁結(jié)構(gòu)的相關(guān)數(shù)據(jù),本文的系統(tǒng)主站的軟件設(shè)計(jì)為B/S結(jié)構(gòu)。在本文中,基于智能橋梁結(jié)構(gòu)健康監(jiān)測(cè)系統(tǒng),設(shè)計(jì)了系統(tǒng)的硬件電路,包括CC2530芯片外圍電路,中心節(jié)點(diǎn)(網(wǎng)關(guān))主控芯片S3C2440A外圍電路、EM770W驅(qū)動(dòng)電路和電源電路。系統(tǒng)軟件方面主要包括:無(wú)線傳感節(jié)點(diǎn)中各個(gè)傳感模塊的驅(qū)動(dòng)電路、節(jié)點(diǎn)之間的數(shù)據(jù)收發(fā)程序和中心節(jié)點(diǎn)(網(wǎng)關(guān))的數(shù)據(jù)收發(fā)程序,為6Lo WPAN設(shè)計(jì)了一個(gè)適配層用以保證WSN和IPv6之間通訊協(xié)議的轉(zhuǎn)換,實(shí)現(xiàn)無(wú)線傳感網(wǎng)絡(luò)和互聯(lián)網(wǎng)的無(wú)縫連接。完成了contiki操作系統(tǒng)在CC2530上的移植。最終對(duì)整個(gè)系統(tǒng)進(jìn)行了各個(gè)模塊的測(cè)試和聯(lián)機(jī)整調(diào),測(cè)試表明系統(tǒng)能夠準(zhǔn)確采集各個(gè)參數(shù)并傳輸至后方服務(wù)器上,且運(yùn)行狀態(tài)良好,能夠滿足設(shè)計(jì)要求。
[Abstract]:Transportation is the lifeblood of a country's economy, and some of the hub structures in the transportation infrastructure are the key components of the healthy development of the entire transport industry. The construction and maintenance of the architectural structure of these main roads is a very important part for a country's infrastructure construction, which also reflects a country's economic development and the strength of science and technology. Monitoring of bridges can not only detect the disease of bridges early, but also provide reliable basis and guidance for decision-making of maintenance and maintenance management. In this paper, an intelligent bridge structure health monitoring system based on 6Lo WPAN wireless sensor network is designed. This system combines 3G wireless transmission technology with 6Lo WPAN technology, constructs a wireless sensor network bridge structure condition monitoring platform, and establishes the data acquisition node. A multi-layer network architecture composed of central node (gateway) and remote server. The system collects the relevant data parameters by various sensors installed in each part of the bridge, and aggregates the data to the central node (gateway) by using 6Lo WPAN module. Then the data is transferred to the rear server by the central node (gateway) through the 3G module. In order to meet the special requirements of long-term deployment of the system in the field, a solar and lithium battery power supply system is designed for this purpose. In order to ensure the quality of access and make it easy for users to log on to Web site remotely to query the relevant data of bridge structure, the software design of the system master station in this paper is B / S structure. In this paper, based on the intelligent bridge structure health monitoring system, the hardware circuit of the system is designed, including the peripheral circuit of the CC2530 chip, the peripheral circuit of the central node (gateway) master chip S3C2440A, the EM770W drive circuit and the power circuit. The software of the system mainly includes the driving circuit of each sensor module in the wireless sensor node, the data transceiver program between the nodes and the data transceiver program of the central node (gateway). An adaptation layer is designed for 6Lo WPAN to ensure the conversion of communication protocol between WSN and IPv6, and to realize the seamless connection between wireless sensor network and Internet. The transplant of contiki operating system on CC2530 is completed. Finally, each module of the system is tested and adjusted on-line. The test results show that the system can accurately collect the parameters and transmit them to the rear server, and the system runs in good condition and can meet the design requirements.
【學(xué)位授予單位】：南京林業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U446

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