Turn-by-turn navigation

About: Turn-by-turn navigation is a research topic. Over the lifetime, 2243 publications have been published within this topic receiving 52838 citations.

Method of initializing a navigation system

Abstract: A variety of methods of orienting a user of a personal navigation device are described. The user of personal navigation device activates a navigation service and specifies a desired destination. A processor determines a route between the current location of the user and the desired destination. Techniques discussed for orienting the user utilize visible landmarks, dead reckoning, compass information or a combination of these techniques. Once the orientation of the user is established the user is instructed to proceed along the route.

Vehicle navigation system

Abstract: A vehicle navigation system transmits navigation information to a vehicle display in form of video data in a standard video format. The video data may be displayed as a still or a moving image. The vehicle navigation system includes a decoder for decoding and displaying video data and a display that may be interfaced to a vehicle entertainment system. The video data may include map data, user information, directional instructions, video information (still or moving images) or information relating to a destination or point of interest.

Dynamic Presentation of Navigation Instructions

Abstract: In some implementations, a mobile device can be configured to provide navigation instructions to a user of the mobile device. The navigation instructions can be graphical, textual or audio instructions. The presentation of the navigation instructions can be dynamically adjusted based the importance of individual instructions and/or environmental conditions. For example, each navigation instruction can be associated with an importance value indicating how important the instruction is. The volume of important audio instructions can be adjusted (e.g., increased) to compensate for ambient noise so that a user will be more likely to hear the navigation instruction. The timing and/or repetition of the presentation of important instructions can be adjusted based on weather conditions, traffic conditions, or road conditions and/or road features so that a user will be less likely to miss an important navigation instruction.

Learning of plan execution policies for indoor navigation

Abstract: Most state-of-the-art navigation systems for autonomous service robots decompose navigation into global navigation planning and local (reactive) navigation. While the methods for navigation planning and local navigation themselves are well understood, the plan execution problem, the problem of how to generate and parameterize local navigation actions from a given navigation plan, is largely unsolved.This article describes how a robot can autonomously learn to execute navigation plans. We investigate how the robot can acquire causal models of the actions executable by the local navigation system and we develop a decision theoretic action selection function which uses the models learned to execute a given navigation plan. Finally, we show, both in simulation and on a RWI B21 mobile robot, that the learned action selection function improves the robot's navigation performance compared to standard plan execution techniques.

Website navigation architectures and their effect on website visibility: a literature survey

Abstract: Search engines hold a promise of delivering relevant and useful information to the human user. The primary objective of this research project is to compare and report on different types of navigation schemes, their advantages and disadvantages, and the impact they have on the visibility of a webpage to a search engine crawler. The method employed was to review relevant literature, compare the advantages and disadvantages of navigation architectures and to reach a conclusion. It was found that a number of options are offered to the designer of a website, including text-based links, navigation buttons, image maps, JavaScript, Flash elements, hidden menus and frames. All of these elements appeared to have a question mark over their positive contribution to the visibility of a webpage. The primary conclusion reached is that navigation architecture used on a website does impact its visibility to a search engine crawler. The webpage designer should exercise care in choosing a navigation scheme. One option is to duplicate navigation schemes to please both human and crawler visitors, which could add to clutter and information overload. Finally, some areas for further research are identified.