Pedestrian navigation systems and location-based services
Pedestrian navigation systems and location-based services
复制标题
行人导航系统和基于位置的服务
DOI：
10.1049/cp:20040696
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
G. Retscher
中科院分区：
文献类型：
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作者：
G. Retscher
行人必须经常在陌生的城市环境或复杂的建筑物中找到自己的路。在这种情况下，他们需要得到指导才能到达他们想要的目的地，例如地方当局大楼的特定房间、柜台或大学的系。基于位置的移动的服务的目标是按需（随时随地）提供这种指导，根据实际信息需求单独定制，并以优选形式呈现。因此，导航服务需要具有一定定位精度和可靠性的移动的用户的定位和跟踪能力。特别地，在城市区域中导航是非常具有挑战性的任务，因为行人在其中没有任何已知定位技术在独立模式下连续工作的空间中移动，并且该移动是在比2D网络复杂得多的空间中（即，在行人路径上以及沿着沿着、室外和室内、通过地下通道等）。为了解决这个具有挑战性的连续定位任务，需要不同定位技术的组合。传感器的集成应该被执行，使得所有传感器在所谓的多传感器系统的意义上紧密耦合。在我们大学的一个新的研究项目，题为“行人导航系统在室内/室外综合环境（NAVIO）”，我们正在努力改善这种导航服务。该项目主要侧重于基于位置的服务的信息方面，即用户手头的任务和通过这种服务提供的信息支持用户的决定。规格将允许选择适当的传感器数据，并在需要时整合数据，提出适合部分冲突的利益和目标的上下文相关的路线，以及选择适当的通信方法，支持用户指导的各种多媒体制图形式。为了测试和展示我们的方法和结果，该项目考虑了一个用例场景，即参观者对维也纳理工大学各系的指导。本文介绍了我们的项目的第一个结果。
Pedestrians must often find their way in unfamiliar urban environments or complex buildings. In these cases they need guidance to reach their desired destination, for example a specific room in a local authorities' building, a counter, or a department at an university. The goal of location-based mobile services is to provide such guidance on demand (anywhere, anytime), individually tailored to the actual information needs and presented in preferred forms. Thereby the navigation service requires positioning and tracking capabilities of a mobile user with a certain positioning accuracy and reliability. In particular, navigating in urban areas is a very challenging task as pedestrians move in spaces where none of the known positioning techniques works continuously in standalone mode and the movement is in a much more complex space than 2D networks (i.e. on pedestrian paths and along roads, outdoor and indoor, through underground passages, etc.). To solve this challenging task of continuous position determination, a combination of different location technologies is required. The integration of the sensors should be performed such that all the sensors are tightly coupled in the sense of a so-called multi-sensor system. In a new research project in our University entitled "Pedestrian Navigation Systems in Combined Indoor/Outdoor Environments (NAVIO)" we are working on the improvement of such navigation services. The project is mainly focusing on the information aspect of location-based services, i.e. on the user's task at hand and support of the user's decisions by information provided by such a service. Specifications will allow selection of appropriate sensor data and to integrate data when and where needed, to propose context-dependent routes fitting to partly conflicting interests and goals as well as to select appropriate communication methods in terms of supporting the user guiding by various multimedia cartography forms. To test and to demonstrate our approach and results, the project takes a use case scenario into account, i.e. the guidance of visitors to departments of the Vienna University of Technology. First results of our project are presented in this paper.