【摘要】：物聯(lián)網(wǎng)已成為當(dāng)前世界新一輪經(jīng)濟和科技發(fā)展的戰(zhàn)略制高點之一，被認為是繼計算機、互聯(lián)網(wǎng)之后，世界信息產(chǎn)業(yè)的第三次浪潮。在交通、公共安全、農(nóng)業(yè)、環(huán)保、工業(yè)生產(chǎn)、電力、物流、家居、醫(yī)療等領(lǐng)域有巨大的應(yīng)用前景。公交物聯(lián)網(wǎng)是物聯(lián)網(wǎng)在公共交通領(lǐng)域的重要應(yīng)用。公交車載感知終端對公交車輛內(nèi)部的狀態(tài)、位置、速度等以及外部的環(huán)境信息進行感知，并通過無線網(wǎng)絡(luò)的方式進行傳輸，是公交物聯(lián)網(wǎng)重要的感知信息獲取方式。無線網(wǎng)絡(luò)的接入是對各類感知信息進行傳輸?shù)幕A(chǔ)，對此本論文對公交車載感知終端無線網(wǎng)絡(luò)接入系統(tǒng)進行研究并實際應(yīng)用。 本文首先對車輛傳感器網(wǎng)絡(luò)進行分析研究，并結(jié)合公交物聯(lián)網(wǎng)的特點，建立公交車輛傳感器網(wǎng)絡(luò)體系結(jié)構(gòu)，在此基礎(chǔ)之上對公交車輛感知節(jié)點的功能及結(jié)構(gòu)進行了分析研究。結(jié)合公交車輛多無線網(wǎng)絡(luò)接入的特性，給出了一種公交車載感知終端無線網(wǎng)絡(luò)接入系統(tǒng)協(xié)議模型，并對模型中的關(guān)鍵內(nèi)容進行了分析。 然后，Wi-Fi以及LTE網(wǎng)絡(luò)是公交物聯(lián)網(wǎng)信息傳輸?shù)闹匾绞�，本文對Wi-Fi及LTE無線網(wǎng)絡(luò)接入?yún)f(xié)議進行分析研究。以此為基礎(chǔ)，并選用具有豐富邏輯設(shè)計資源的FPGA（Field Programmable GateArray）中的ZYNQ為平臺，對Wi-Fi及LTE的公交車載感知終端無線網(wǎng)絡(luò)接入系統(tǒng)進行了軟硬件設(shè)計。 第三，以公交車載感知終端開發(fā)的層次結(jié)構(gòu)為指導(dǎo)，以ZYNQ平臺上LTE及Wi-Fi的軟硬件設(shè)計為基礎(chǔ)，通過對運行在ZYNQ平臺上操作系統(tǒng)的LTE與Wi-Fi的驅(qū)動開發(fā)、內(nèi)核配置編譯以及軟件程序移植，實現(xiàn)了公交車載感知終端無線網(wǎng)絡(luò)的接入，，并對無線網(wǎng)絡(luò)接入系統(tǒng)的聯(lián)通性進行了測試。 最后，對公交車載感知終端的無線網(wǎng)絡(luò)接入系統(tǒng)進行實際的項目應(yīng)用驗證。將該系統(tǒng)搭載于公交車上，在LTE與Wi-Fi覆蓋范圍內(nèi)，進行了車輛感知信息的傳輸測試。
[Abstract]:The Internet of things has become one of the strategic heights of the new round of economic and technological development in the world. It is considered to be the third wave of the world information industry after the computer and Internet. In transportation, public safety, agriculture, environmental protection, industrial production, electricity, logistics, home, medical and other fields have great application prospects. Public transport Internet of things is an important application of Internet of things in the field of public transport. The bus carrier perception terminal perceives the internal state, position, speed and external environmental information of the bus, and transmits it through wireless network, which is an important way to obtain the perceived information in the public transport Internet of things. Wireless network access is the basis for the transmission of all kinds of perceptual information. In this paper, the wireless network access system of bus carrier perception terminal is studied and applied in practice. In this paper, the vehicle sensor network (VSNs) is analyzed and studied firstly, and based on the characteristics of the bus network of things, the system structure of the bus sensor network is established, and the function and structure of the perceived nodes of the bus vehicle are analyzed and studied. Based on the characteristics of multi-wireless network access for public transport vehicles, a protocol model of bus carrier sensing terminal wireless network access system is presented, and the key contents of the model are analyzed. Then Wi-Fi and LTE network are important ways to transmit the information of public transport Internet of things. This paper analyzes and studies the access protocols of Wi-Fi and LTE wireless network. On the basis of this, ZYNQ of FPGA (Field Programmable GateArray) with rich logical design resources is selected as the platform, and the wireless network access system of bus carrier sensing terminal of Wi-Fi and LTE is designed in hardware and software. Thirdly, guided by the hierarchy of bus carrier sensing terminal development, based on the design of LTE and Wi-Fi software and hardware on ZYNQ platform, the driver of LTE and Wi-Fi running on ZYNQ platform is developed. The kernel configuration compile and software program transplantation are used to realize the wireless network access of the bus carrier sensing terminal and the connectivity of the wireless network access system is tested. Finally, the wireless network access system of bus carrier sensing terminal is verified. The system was carried out on the bus, and the transmission test of the vehicle perception information was carried out within the coverage of LTE and Wi-Fi.
【學(xué)位授予單位】：北京工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP391.44;TN929.5

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