本文選題：Zigbee + BP神經網絡��； 參考：《廣東工業(yè)大學》2014年碩士論文

【摘要】：伴隨著旅游業(yè)的快速發(fā)展,人們對智能導游系統(tǒng)的需求與日俱增。本文綜述了國內外電子導游的現(xiàn)狀,通過對大型展館內智能導游系統(tǒng)的特點研究,以及室內定位技術方案的優(yōu)劣勢分析,最終采用了基于Zigbee無線傳感網絡智能導游系統(tǒng)的方案。在導師的指導下,本人主要進行如下工作： 1、查閱了大量資料,研究國內外電子導游和室內定位技術、背景,并針對性的給出了基于藍牙、WIEI、RFID、超帶寬、Zigbee等技術的智能導游系統(tǒng)方案,對比分析方案的優(yōu)缺點,研究了大型展館的導游特點,在此基礎上確定本系統(tǒng)的最終方案； 2、針對基于RSSI測距技術中非視距誤差以及定位模型參數受環(huán)境影響導致室內定位精度不高的問題,通過研究Zigbee無線信號的傳播模型,分析無線模型中的參數A和N與環(huán)境的關系,以及參數對接收信號強度RSSI (Received Signal Strength Indicator)測距的影響。提出了一種新的實時動態(tài)參數定位方法。通過運用BP神經網絡算法對非視距下RSSI測距誤差進行修正,然后通過選定的參考節(jié)點之間相互通信,實時動態(tài)地估算出環(huán)境參數值。實驗證明,該算法不但縮減了在RSSI測距技術中的非視距誤差,而且能根據實際環(huán)境實時動態(tài)地調整定位模型的參數,有效地提高定位精度； 3、設計和實現(xiàn)了基于Zigbee室內定位的智能導游系統(tǒng),采用ARMSKY-CC2431EM無線ZigBee定位模塊搭建了Zigbee無線網絡定位系統(tǒng)平臺,進行Zigbee定位系統(tǒng)模擬仿真。搭建了Android終端平臺,在Linux內核的Android導游終端上實現(xiàn)了Zigbee節(jié)點的控制和應用軟件的開發(fā),該終端系統(tǒng)一方面要實現(xiàn)Zigbee節(jié)點的串口通信,并對信息進行采集和分析,另一方面要實現(xiàn)操作簡潔、響應迅速、界面友好的的信息顯示。 本文所設計的系統(tǒng)適用于展館、博物館等大型室內環(huán)境下進行電子導游。本系統(tǒng)主要由Zigbee定位系統(tǒng)、服務器系統(tǒng)和Android導游終端三部分組成。首先Zigbee定位系統(tǒng)傳送信息給服務器,然后服務器系統(tǒng)平臺通過優(yōu)化算法確定了游客游覽景點的位置,把景點編號和個性化的服務信息傳給Android導游終端,最后Android應用軟件為游客提供個性化的服務。本文通過實驗證明了系統(tǒng)的可行性,并針對其性能進行了大量實驗測量。
[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.
【學位授予單位】：廣東工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN92

【引證文獻】

相關期刊論文 前2條

1 孫聃石;楊力;;ZigBee定位技術在珍貴物品監(jiān)測中的應用[J];測繪與空間地理信息;2015年07期

2 陳瑜;張鐵民;孫道宗;彭孝東;廖貽泳;;基于無線傳感器網絡的設施農業(yè)車輛定位系統(tǒng)設計與試驗[J];農業(yè)工程學報;2015年10期

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本文編號：2064978