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.

A GPS navigation system with QR code decoding and friend positioning in smart phones

Abstract: Global Positioning System (GPS) navigation is a popular assistant during a trip. By using a GPS navigation system, the travelers can easily and quickly arrive to the destination in an unfamiliar area. However, there is no free and open-source GPS navigation system which integrates many useful applications. Thus, this paper proposes a GPS navigation system on the Android platform, called Android Mobile Navigation System (AMNS). AMNS not only provides users the GPS navigation function, but also supports Quick Response (QR) code decoding and friend positioning. Furthermore, AMNS is free and open-source software, so service providers or developers can easily extend their own services on this system.

Visual navigation system and method based on structured light

Abstract: A visual navigation system and method based on structured light are provided. The visual navigation system at least includes at least one projector for generating a specific path pattern formed by structured light, and a visual server. In addition to facilitating the visual navigation system to detect an obstacle, the pattern formed by the structured light provides a specific path pattern followed by robots during the navigation. In the visual navigation method, when detecting the obstacle, the visual server routes a virtual path and issues a movement-control command to the robots, which in turn follow the virtual path. The present invention is capable of raising the accuracy for the robot navigation and reducing operation burden of the visual server by using the structured light to guide the robots.

3-D Human Navigation System with Consideration of Neighboring Space Information

Abstract: Human movement such as walking or traveling in a wheelchair involves vertical movement. Previously, we developed a real ubiquitous round-the-clock 3D navigation system for pedestrian point-to-point navigation, in which position detection is driven mainly by dead reckoning with the help of RFID technology. A number of navigation systems have been developed for pedestrians, but few consider dynamic information. The newly proposed "Moudo-Cane" system extends the previously developed system [1] and provides more reliable and convenient guidance throughout the journey, even when GPS information is unavailable, in an attempt to not only provide a universally available navigation system, but also to provide assistance for visually impaired or wheelchair-bound users by taking their preferences into account.

Integrating online navigation data with cached navigation data during active navigation

Abstract: When a portable device cannot connect to a network, offline navigation directions are generated and displayed by obtaining navigation instructions stored on the portable device which direct a user from a first location to a second location. When a network connection later becomes available, the portable device obtains online navigation directions from the first location to the second location from a navigation server. The portable device updates the offline navigation directions in a least disruptive manner, with information from the online navigation directions by determining the difference between the online and the offline navigation directions. If the online and offline navigation directions are similar, the portable device updates the display with estimated time data, traffic data, etc., from the online navigation directions. On the other hand, if there is a significant difference between the online and offline navigation directions, the portable device displays the online navigation directions as an alternative route.

Data requirements and a spatial database for personalized wheelchair navigation

Abstract: A spatial database is an essential part of a navigation system since it provides the necessary resources to perform navigation and routing functions, among others. While generally wheelchair navigation and car navigation overlap from the functional standpoint, databases for car navigation are not suitable for wheelchair navigation. One major difference between databases for car navigation and wheelchair navigation is that operations in car navigation are centered around road networks along with road segment attributes, whereas operations in wheelchair navigation are primarily centered around sidewalk networks along with unique parameters related to accessibility information about the surrounding environment. In this paper, we discuss the data (spatial and non-spatial) requirements and a database for wheelchair navigation. We also report our experience in constructing a spatial database of the University of Pittsburgh campus area for wheelchair navigation.