Showing papers on "Turn-by-turn navigation published in 1993"

Navigation system for use in vehicle

Abstract: A vehicle navigation system in which an optimum route from a starting point to a destination is computed in accordance with map information. A route guide is displayed in accordance with the current position of the vehicle and the optimum route. The route guiding information includes an image indicating the direction of vehicle progress from an intersection where the vehicle should turn, the name of the road the vehicle is to enter, and the name of a road intersecting the road on which the vehicle is currently running between the current position of the vehicle and the intersection where the vehicle should turn.

Portable vehicle navigation system (NV-1): Its features and operability

Abstract: The NV-1 described is a vehicle navigation system which has been developed primarily for the aftersales market. The user can easily remove this stand-alone system from the vehicle. The system uses a CD-ROM disc on which is stored a map database whose format is standardized and widely compatible. The user can enjoy a variety of software by merely changing the disc. Use is also made of a variety of CD-ROMs containing additional information, which is classified according to intended application. Since this navigation sytem incorporates a speech recognition function, the user can perform a series of operations without touching the controls or looking at the screen.

A prototype low cost in-vehicle navigation system

Abstract: A low cost in-vehicle navigation system being developed for use within the DRIVE PLEIADES (London-Paris Corridor) project is described. The system integrates vehicle position information from a global positioning system (GPS) receiver, broadcast traffic condition messages using both RDS-TMC and radio paging, and road network information from a route planning system. Instructions describing the route are presented to the driver on a small colour LCD and in spoken form. The system tracks the calculated optimum route and gives instructions for the next section of the route to be covered. The optimum route is continuously recalculated, reacting to TMC messages and the vehicles location.

Vehicle navigation system with speech - calculates location at which spoken guidance information is given in dependence on vehicle situation

Abstract: The vehicle navigation system includes a memory (10) for storing route information necessary to reach a target destination. The route information includes turn location data which is used for spoken route guidance. The present motion situation of the vehicle is detected (12) and used to calculate (26) the location at which route information will be given, before the turning is reached. The motion situation of the vehicle includes information about the number of lanes in the road, width of the road, road junctions, and the speed of the vehicle. USE/ADVANTAGE - For motor vehicle. Timing of spoken information depends on lane in which car is travelling.

A Design Approach for a GPS User Segment for Aerospace Vehicles

Abstract: As new applications for the use of the Global Positioning System (GPS) on aerospace vehicles emerge, more attention is being paid to the design of the user segment, which comprises the hardware and software employed by the user to obtain navigation information from GPS. The complexity of the design of the user segment, as well as the performance demanded of the components (such as the antenna), depends on user requirements such as total navigation accuracy. Other factors, for instance the expected satellite/vehicle geometry or the accuracy of an accompanying inertial navigation system, can also affect the user segment design. The interaction between these effects, the user requirements, and the user segment design is studied. Design curves are developed which allow quick trade studies to be performed.

Development of the New Navigation System - Voice Route Guidance

Abstract: A new navigation system which utilizes voice synthesis function was developed and installed. This paper reports the details of the navigation system. It was developed with the aim of providing a system which is capable of reducing the workload on the driver and helping the driver reach his destination smoothly and more safely than with the use of the conventional system. This system has the following features: (1) Displays digital mapping information by means of a full-color TFT-LCD (Thin Film Transistor-Liquid Crystal Display) incorporated in the instrument panel; (2) Automatic location of present position through combination of map matching and GPS (Global Positioning System); (3) Automatic determination of typical route to reach a destination which can be specified by means of address, telephone number or name, and display of the route in the map; (4) Direction of the route through synthesized voice of high quality, using proper nouns including the names of intersections and destination of expressway, which are stored on the eight CD-ROMs (Compact Disc-Read Only Memory); (5) Automatic display of intersection routing diagram which allows one to make sure of the direction to go and features of the intersection; and (6) "Re-search route" function which can easily change the route even when running. This paper describes the construction of the navigation system and the voice advisories.

Adaptive vehicle navigation in hostile environments

Abstract: Vehicle navigation is the process of finding a course through which to steer a vehicle to take it from its trip origination point to its destination point In general, the region traversed by a vehicle contains natural and man-made obstacles This means that a typical course is segmented, each segment representing a response to a known, or unexpected obstacle The nature of the obstacle determines the approach used to negotiate it In this paper, a set of navigation schemes is presented which helps a military vehicle to negotiate two specific types of obstacles: military vehicles and weapons Some of the schemes are also suitable for negotiating terrain features, eg mountains and lakes The set is part of an adaptive navigation system that is being developed, based on the semantic control system paradigm Three global navigation schemes and five local navigation schemes are presented The paper also presents the use of a strategy table as a tool to guide the development of vehicle navigation schemes >

A prototype BPM electronics module for RHIC

Abstract: Prototype components of the VXI-based Beam Position Monitor Electronics for the Relativistic Heavy Ion Collider have been constructed and tested for accuracy, resolution and linearity. The detector, designed solely for single-bunch acquisition, consists of a homodyne detector followed by a sample and hold and Analog-to-Digital Converter. In the final modules, an on-board Digital Signal Processor will provide turn by turn data correction, continuously updated closed-orbit averaging, and circular buffer maintenance. A timing processor allows synchronization of modules to enable correlated data collection. >

Driving future vehicles. chapter 16: information presentation in in- car navigation systems

Abstract: This chapter presents some results of a project to investigate information presentation in in-car navigation systems, including map displays and displays using simple arrows or voiced instructions. Some previous studies are reviewed, that compare conventional maps with various methods of presenting navigation information. Using their results and the author's previous research, some guidelines are developed on what navigation information to present to drivers: (1) maplike displays do not improve on conventional paper maps; (2) the amount of information presented should be kept as small as possible; (3) the best results were obtained from simple audible or visual left-right instructions; (4) street names should not be used. The results are presented of tests of three experimental navigation systems developed by the author, using these guidelines. The first field experiment tested strategy differences in map information use. The second field experiment made an experimental comparison between different types of in-car navigation information. The two main findings were: (1) multiple navigation instructions resulted in more navigation errors, compared with single instructions in the form of arrows; (2) use of existing road signs as navigation instructions did not result in fewer navigation errors than when only simple arrows were used. Some implications for in-car navigation systems are discussed briefly. For the covering abstract see IRRD 861934.

Development of the new toyota navigation system with voice route guidance

Abstract: Toyota Motor Corporation developed a new navigation system featuring voice announcements. This system, mass-produced as O.E.M. equipment for the first time in the world, was installed on the Celsior, with marketing beginning in Japan in August 1992. Designed on the basis of detailed analysis of Japanese drivers' driving habits and the driving environment, this voice navigation system enabled accurate point-to-point navigation anywhere within Japan. Most notably, the system enhances driving safety by providing well-timed voice guidance, decreasing the frequency of display glance. This paper reportes the features of the system, the hardware configuration, involving details of navigation functions and guiding logic. It examines the driver's glance behavior at navigation display while driving and evaluates its effectiveness.