本文選題：Zigbee + BP神經(jīng)網(wǎng)絡(luò)��； 參考：《廣東工業(yè)大學(xué)》2014年碩士論文

【摘要】：伴隨著旅游業(yè)的快速發(fā)展,人們對(duì)智能導(dǎo)游系統(tǒng)的需求與日俱增。本文綜述了國(guó)內(nèi)外電子導(dǎo)游的現(xiàn)狀,通過對(duì)大型展館內(nèi)智能導(dǎo)游系統(tǒng)的特點(diǎn)研究,以及室內(nèi)定位技術(shù)方案的優(yōu)劣勢(shì)分析,最終采用了基于Zigbee無線傳感網(wǎng)絡(luò)智能導(dǎo)游系統(tǒng)的方案。在導(dǎo)師的指導(dǎo)下,本人主要進(jìn)行如下工作： 1、查閱了大量資料,研究國(guó)內(nèi)外電子導(dǎo)游和室內(nèi)定位技術(shù)、背景,并針對(duì)性的給出了基于藍(lán)牙、WIEI、RFID、超帶寬、Zigbee等技術(shù)的智能導(dǎo)游系統(tǒng)方案,對(duì)比分析方案的優(yōu)缺點(diǎn),研究了大型展館的導(dǎo)游特點(diǎn),在此基礎(chǔ)上確定本系統(tǒng)的最終方案； 2、針對(duì)基于RSSI測(cè)距技術(shù)中非視距誤差以及定位模型參數(shù)受環(huán)境影響導(dǎo)致室內(nèi)定位精度不高的問題,通過研究Zigbee無線信號(hào)的傳播模型,分析無線模型中的參數(shù)A和N與環(huán)境的關(guān)系,以及參數(shù)對(duì)接收信號(hào)強(qiáng)度RSSI (Received Signal Strength Indicator)測(cè)距的影響。提出了一種新的實(shí)時(shí)動(dòng)態(tài)參數(shù)定位方法。通過運(yùn)用BP神經(jīng)網(wǎng)絡(luò)算法對(duì)非視距下RSSI測(cè)距誤差進(jìn)行修正,然后通過選定的參考節(jié)點(diǎn)之間相互通信,實(shí)時(shí)動(dòng)態(tài)地估算出環(huán)境參數(shù)值。實(shí)驗(yàn)證明,該算法不但縮減了在RSSI測(cè)距技術(shù)中的非視距誤差,而且能根據(jù)實(shí)際環(huán)境實(shí)時(shí)動(dòng)態(tài)地調(diào)整定位模型的參數(shù),有效地提高定位精度； 3、設(shè)計(jì)和實(shí)現(xiàn)了基于Zigbee室內(nèi)定位的智能導(dǎo)游系統(tǒng),采用ARMSKY-CC2431EM無線ZigBee定位模塊搭建了Zigbee無線網(wǎng)絡(luò)定位系統(tǒng)平臺(tái),進(jìn)行Zigbee定位系統(tǒng)模擬仿真。搭建了Android終端平臺(tái),在Linux內(nèi)核的Android導(dǎo)游終端上實(shí)現(xiàn)了Zigbee節(jié)點(diǎn)的控制和應(yīng)用軟件的開發(fā),該終端系統(tǒng)一方面要實(shí)現(xiàn)Zigbee節(jié)點(diǎn)的串口通信,并對(duì)信息進(jìn)行采集和分析,另一方面要實(shí)現(xiàn)操作簡(jiǎn)潔、響應(yīng)迅速、界面友好的的信息顯示。 本文所設(shè)計(jì)的系統(tǒng)適用于展館、博物館等大型室內(nèi)環(huán)境下進(jìn)行電子導(dǎo)游。本系統(tǒng)主要由Zigbee定位系統(tǒng)、服務(wù)器系統(tǒng)和Android導(dǎo)游終端三部分組成。首先Zigbee定位系統(tǒng)傳送信息給服務(wù)器,然后服務(wù)器系統(tǒng)平臺(tái)通過優(yōu)化算法確定了游客游覽景點(diǎn)的位置,把景點(diǎn)編號(hào)和個(gè)性化的服務(wù)信息傳給Android導(dǎo)游終端,最后Android應(yīng)用軟件為游客提供個(gè)性化的服務(wù)。本文通過實(shí)驗(yàn)證明了系統(tǒng)的可行性,并針對(duì)其性能進(jìn)行了大量實(shí)驗(yàn)測(cè)量。
[Abstract]:With the rapid development of tourism, the demand for intelligent tour guide system is increasing day by day. This paper summarizes the present situation of electronic tour guides at home and abroad. By studying the characteristics of intelligent tour guide system in large exhibition hall and analyzing the advantages and disadvantages of indoor positioning technology, the scheme of intelligent guide system based on Zigbee wireless sensor network is adopted. Under the guidance of my tutor, I mainly do the following work: 1. I have consulted a large number of materials, studied the domestic and foreign electronic tour guide and indoor positioning technology, background, The intelligent tour guide system scheme based on Bluetooth WIEII-RFIDand Zigbee technology is given. The advantages and disadvantages of the scheme are compared and analyzed, and the characteristics of the tour guide of the large exhibition hall are studied. On this basis, the final scheme of the system is determined. 2. Aiming at the problem that the non-line-of-sight error based on RSSI ranging technology and location model parameters are affected by the environment, the indoor positioning accuracy is not high, and the propagation model of Zigbee wireless signal is studied. The relationship between the parameters A and N in the wireless model and the environment, and the influence of the parameters on the received signal strength RSSI (received signal strength Indicator) ranging are analyzed. A new real-time dynamic parameter location method is proposed. By using BP neural network algorithm to correct the RSSI ranging error in the non-line-of-sight range, the environmental parameters are estimated dynamically and in real time through the communication between the selected reference nodes. Experiments show that the algorithm not only reduces the non-line-of-sight error in RSSI ranging technology, but also can dynamically adjust the parameters of the location model in real time according to the actual environment, and effectively improve the positioning accuracy. 3. The intelligent guide system based on Zigbee indoor positioning is designed and implemented. The Zigbee wireless network positioning system platform is built by using ARMSKY-CC2431EM wireless ZigBee positioning module, and the simulation of Zigbee positioning system is carried out. The Android terminal platform is built, and the control of Zigbee node and the development of application software are realized on the Android guide terminal of Linux kernel. On the one hand, the terminal system must realize the serial port communication of Zigbee node, and collect and analyze the information. On the other hand, to achieve simple operation, rapid response, interface friendly information display. The system designed in this paper is suitable for electronic tour guide in large indoor environment such as exhibition hall and museum. The system is mainly composed of Zigbee positioning system, server system and Android tour guide terminal. First, the Zigbee positioning system transmits information to the server, and then the server platform determines the location of the tourist attractions through the optimization algorithm, and transmits the number and personalized service information of the tourist attractions to the Android tour guide terminal. Finally, the Android application provides personalized service for tourists. In this paper, the feasibility of the system has been proved by experiments, and a large number of experiments have been carried out on the performance of the system.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN92

【引證文獻(xiàn)】

相關(guān)期刊論文 前2條

1 孫聃石;楊力;;ZigBee定位技術(shù)在珍貴物品監(jiān)測(cè)中的應(yīng)用[J];測(cè)繪與空間地理信息;2015年07期

2 陳瑜;張鐵民;孫道宗;彭孝東;廖貽泳;;基于無線傳感器網(wǎng)絡(luò)的設(shè)施農(nóng)業(yè)車輛定位系統(tǒng)設(shè)計(jì)與試驗(yàn)[J];農(nóng)業(yè)工程學(xué)報(bào);2015年10期

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本文編號(hào)：2064978