Large scale movement analysis from WiFi based location data
Large scale movement analysis from WiFi based location data
复制标题
基于 WiFi 的位置数据进行大规模运动分析
DOI：
10.1109/ipin.2012.6418885
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Moreira
中科院分区：
文献类型：
--
作者：
Filipe Meneses;A. Moreira
理解和建模人类在城市环境中的移动方式对于许多应用都是有益的。定位技术的最新进展，即基于无处不在的无线网络的定位技术，正在促进人们的观察以进行人体运动分析。在本文中，我们介绍了研究大学校园内人员流动性的大规模工作的结果。这项研究进行了几个月，使用了从数千名用户那里收集的数据，这些用户在两所大学校园和市中心其他一些建筑内的众多建筑内自由移动。超过 550 个接入点的 Wi-Fi 基础设施为学术界提供互联网接入。我们通过记录连接到每个接入点的设备来跟踪用户移动。基于这些数据，我们开发了一种强调空间特征和人体运动之间关系的分析过程。在本文中，我们引入“地点连通性”和“跨边界流动”的概念来建模这些关系。结果显示检测到的流动模式、一天中哪些地方具有吸引力，以及哪些地方联系更紧密。本文还分析了地方之间的短期和长期变动。通过这次学习，我们加深了对校园生活的了解，让我们感受到了校园的“脉搏”。
Understanding and modeling the way humans move in urban contexts is beneficial for many applications. The recent advances on positioning technologies, namely those based on the ubiquity of wireless networks, is facilitating the observation of people for human motion analysis. In this paper we present the result of a large scale work conducted to study the human mobility in a University's campuses. The study was conducted along several months, using data collected from thousands of users that freely moved inside the numerous buildings existent in two University campuses and a few other buildings in the city center. A Wi-Fi infrastructure of more than 550 access points provides Internet access to the academic community. We tracked the user movements by logging the devices connected to each access point. Based on that data, an analysis process that highlights the relationships between space features and human motion has been developed. In this paper we introduce the concepts of “place connectivity” and “flow across a boundary” to model these relationships. Results show the mobility patterns detected, which are the attraction places along the day, and what places are more strongly connected. This paper also includes an analysis of the short and long term movements between places. With this study we extended our understanding of the life in the campus, enabling us to feel the campus “pulse”.