航站楼位置服务的关键技术研究

发布时间：2018-05-13 18:55

本文选题：位置服务 + 加权径向基函数　；参考：《中国民航大学》2014年硕士论文

【摘要】：随着我国民航事业的飞速发展,迅速增长的航空旅客与机场有限的服务资源的矛盾日益突出。同时针对机场智能化和航空旅客对位置服务的需要,机场决定在航站楼引入基于位置的服务技术,以缓解地面服务人员的工作压力。而位置服务的关键技术为位置的获取,即定位技术。随着无线局域网的广泛部署和普及应用,基于无线局域网的定位技术逐渐成为室内定位技术研究的主流。本文针对现有基于无线局域网和信号强度的定位技术进行了较深入、系统的研究,并针对航站楼的特殊性,提出有针对性的定位算法。论文的主要工作和创新点如下:(1)本文将现有基于无线局域网和信号强度的定位技术分为两类:理论模型和经验模型。针对这两种定位模型的基本原理、优缺点、研究现状进行了全面的介绍和分析,另外还介绍了定位技术的评价指标。(2)为了满足航空旅客在航站楼内位置服务的需要,本文提出一种集合和加权径向基函数相融合的室内定位方法。该方法能够充分利用了信号弱的无线接入点(AP,Access Point)对定位的作用,降低了航空旅客走动对定位的影响,弥补了传统算法只使用信号强AP的不足,同时具有对AP突发故障不敏感的特点。(3)为了满足航空旅客在候机大厅的位置服务需要,同时为了降低AP部署的高度对定位的影响,提出一种基于信号强度和传播模型的定位技术。该方法首先使用最小二乘法确定传播模型的参数,然后采用最小均方差算法实现准确定位。(4)针对航站楼这一特殊应用场景,设计并实现了一个基于信号强度的位置服务系统原型。该定位系统首先根据本文提出的基于集合和加权径向基函数相融合的定位技术进行定位,并判断用户是否在候机大厅,如果在候机大厅内再采用本文提出的基于传播模型的定位技术进行位置修正。
[Abstract]:With the rapid development of China's civil aviation industry, the contradiction between the rapidly growing air passenger and the limited service resources of the airport is becoming increasingly prominent. At the same time, the airport decided to introduce location-based service technology to the terminal building in order to alleviate the work pressure of ground service staff. The key technology of location service is location acquisition, that is location technology. With the wide deployment and widespread application of WLAN, WLAN-based positioning technology has gradually become the mainstream of indoor positioning technology. In this paper, the existing localization technology based on WLAN and signal intensity is studied deeply and systematically. Aiming at the particularity of the terminal, a targeted localization algorithm is proposed. The main work and innovation of this paper are as follows: (1) in this paper, the existing localization techniques based on WLAN and signal intensity are divided into two categories: theoretical model and empirical model. In view of the basic principle, advantages and disadvantages of these two positioning models, the present situation of the research is comprehensively introduced and analyzed. In addition, the evaluation index of positioning technology is also introduced. In this paper, an indoor positioning method based on the fusion of set and weighted radial basis function is proposed. This method can make full use of the weak signal wireless access point) in the location, reduce the impact of air passenger walking on the location, and make up for the disadvantage of the traditional algorithm which only uses the strong AP signal. At the same time, it has the characteristic of being insensitive to the sudden failure of AP.) in order to meet the needs of air passengers' location service in the terminal, and to reduce the impact of the altitude of AP deployment on the location, A localization technique based on signal intensity and propagation model is proposed. The method first uses the least square method to determine the parameters of the propagation model, and then uses the minimum mean square error algorithm to realize the accurate location. (4) aiming at the special application scene of the terminal building, the method uses the least square method to determine the parameters of the propagation model. A prototype of position service system based on signal strength is designed and implemented. The positioning system is based on the location technology proposed in this paper based on the fusion of the set and the weighted radial basis function, and determines whether the user is in the terminal. If the location technology based on propagation model proposed in this paper is used to correct the position in the terminal.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：V351;TN925.93

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