scispace - formally typeset
Search or ask a question

Showing papers on "Turn-by-turn navigation published in 2006"


Journal ArticleDOI
TL;DR: The incidental acquisition of spatial orientation knowledge when using a pedestrian navigation assistance system for wayfinding was compared to incidental learning during map-based wayfinding, finding that the spatial orientationknowledge of navigation assistance users is poor.

160 citations


Proceedings ArticleDOI
23 May 2006
TL;DR: This paper presents results of a long-term client-side Web usage study, updating previous studies that range in age from five to ten years, and confirms links to be the most important navigation element, while backtracking has lost more than half of its previously reported share and form submission has become far more common.
Abstract: This paper presents results of a long-term client-side Web usage study, updating previous studies that range in age from five to ten years. We focus on three aspects of Web navigation: changes in the distribution of navigation actions, speed of navigation and within-page navigation."Navigation actionso corresponding to users' individual page requests are discussed by type. We reconfirm links to be the most important navigation element, while backtracking has lost more than half of its previously reported share and form submission has become far more common. Changes of the Web and the browser interfaces are candidates for causing these changes.Analyzing the time users stayed on pages, we confirm Web navigation to be a rapidly interactive activity. A breakdown of page characteristics shows that users often do not take the time to read the available text or consider all links. The performance of the Web is analyzed and reassessed against the resulting requirements.Finally, habits of within-page navigation are presented. Although most selected hyperlinks are located in the top left corner of the = screen, in nearly a quarter of all cases people choose links that require scrolling. We analyzed the available browser real estate to gain insights for the design of non-scrolling Web pages.

142 citations


Patent
10 Oct 2006
TL;DR: In this paper, the authors combine the geographical coverage possible with fixed, pre-defined route segment costs (e.g., the legal speed limit) with, wherever possible, richer time dependent costs, so that the effect of congestion with any time predictability can be accurately taken into account as an automatic, background process.
Abstract: The present invention combines the geographical coverage possible with fixed, pre-defined route segment costs (e.g. the legal speed limit) with, wherever possible, richer time dependent costs. A user of, for example, a portable navigation device, can therefore continue route planning as before to virtually any destination in a country covered by the stored map database, but wherever possible, can also use traffic data with time-dependent costs, so that the effect of congestion with any time predictability can be accurately taken into account as an automatic, background process. It leaves the user to simply carry on driving, following the guidance offered by the navigation device, without needing to be concerned about congestion that exists now, and whether it will impact his journey.

112 citations


Proceedings ArticleDOI
02 Mar 2006
TL;DR: This paper addresses the usefulness of map and video information in a navigation task by comparing a side-by-side (2D) and an integrated (3D) representation in both a simulated and a real world study and suggests that sometimes video is more helpful than a map and other times a map is more help than video.
Abstract: One of the fundamental aspects of robot teleoperation is the ability to successfully navigate a robot through an environment. We define successful navigation to mean that the robot minimizes collisions and arrives at the destination in a timely manner. Often video and map information is presented to a robot operator to aid in navigation tasks. This paper addresses the usefulness of map and video information in a navigation task by comparing a side-by-side (2D) representation and an integrated (3D) representation in both a simulated and a real world study. The results suggest that sometimes video is more helpful than a map and other times a map is more helpful than video. From a design perspective, an integrated representation seems to help navigation more than placing map and video side-by-side.

105 citations


Journal ArticleDOI
TL;DR: The results reveal a consistent and significant advantage of the tree aid for both age groups, an advantage that was larger for users with lower spatial abilities and older adults.
Abstract: The current study was concerned with the basic question of how to overcome users' disorientation when navigating through hierarchical menus in small-screen technical devices, as for example mobile phones. In these devices, menu functions are typically organized in a tree structure. Two different navigation aids were implemented into a computer simulation of a real mobile phone (Siemens S45 ®). The interface of the first navigation aid (the "category" aid) showed the name of the current category as well as a list of its contents. The interface of the other navigation aid (the "tree" aid) was identical to the first except that it also showed the parents and parent-parents of the current of the category and it indented the subcategories to emphasize the hierarchical structure. For the study, 16 younger (23-28 years) and 16 older adults (46-60 years) had to solve 9 common phone tasks twice consecutively to measure learnability. To gain further insight into user characteristics modulating navigation performance and possibly interacting with the utility of the navigation aids, we assessed users' verbal memory and spatial abilities. Dependent variables were task effectiveness (number of tasks solved) and efficiency (time on task, number of returns in menu hierarchy, and returns to the top). The results reveal a consistent and significant advantage of the tree aid for both age groups, an advantage that was larger for users with lower spatial abilities and older adults. In general, older adults had lower verbal memory and spatial abilities, which were found to account for their lower navigation performance. We assume that the strong advantage of the tree aid is due to the spatial information on the menu structure, which thus conveys survey knowledge. This allows users to form an adequate mental representation of the menu. It is recommended to add a navigation aid providing survey knowledge into the displays of small-screen devices to achieve better overall performance.

97 citations


Patent
19 May 2006
TL;DR: In this paper, the authors present a user interface for interacting with user interface (UI) objects including global navigation objects, which is based on the concept of global positioning system (GPS).
Abstract: Systems and methods according to the present invention provide a user interface for interacting with user interface (UI) objects including global navigation objects.

67 citations


Patent
03 Aug 2006
TL;DR: In this paper, a vehicle navigation system helps guide a driver to a destination by enhancing visualization of upcoming intersections by storing animation data that depicts the intersection as it will appear to the driver.
Abstract: A vehicle navigation system helps guide a driver to a destination by enhancing visualization of upcoming intersections. The navigation system stores animation data that depicts the intersection as it will appear to the driver. The animation data may be a sequence of images (e.g., digital camera images) taken at intervals before and after the intersection. The navigation system may show the images in synchronism with the progress of the vehicle to provide an animated display of the intersection for the driver. The animated display aids the driver with following a recommended navigation route to the destination.

66 citations


Patent
16 Oct 2006
TL;DR: In this paper, a map matching method and apparatus for a navigation system estimates a location of the navigation system on a correct road segment when a GPS signal is invalidated, by incorporating various additional factors, such as road class, road accessibility, road angle, proximity to candidate road, etc.
Abstract: A map matching method and apparatus for a navigation system estimates a location of the navigation system on a correct road segment when a GPS signal is invalid. The map matching method creates a database of pairs of locations at which the navigation system encountered GPS signal loss and recovery in the first time. The navigation system conducts a map matching processing when the GPS signal is lost in the second time at the recorded location by incorporating various additional factors to match the current position with a correct road segment. The various additional factors, in addition to the measured data by a dead reckoning process, include road class, road accessibility, road angle, proximity to candidate road, etc.

66 citations


Proceedings ArticleDOI
11 Jul 2006
TL;DR: This paper presents an approach that uses Statecharts to formally model adaptive navigation, and shows how important properties of a navigation model are verified using existing model-checking tools, and summarizes the kinds of properties that can be checked with such a model.
Abstract: The navigation of a web application is the possible sequences of web pages a user can visit. In the simplest case the next page is determined by the current page and the action (e.g. link, button) selected by the user. However, many web applications now incorporate adaptive navigation, where the next page also depends on the user's mode, for example whether they are a customer or an administrator, or depends on what pages the user has visited previously.Navigation models are useful for clarifying requirements and specifying implementation behavior. When a model is formal, it can also be used to generate design or implementation artifacts, and can be verified for properties such as broken links or length of navigation path. These uses are all important for the case of simple navigation, but even more important for adaptive navigation because of the added complexity. However, none of the current formal approaches can support adaptive navigation.In this paper we present an approach that uses Statecharts to formally model adaptive navigation, and show how important properties of a navigation model are verified using existing model-checking tools. We summarize the kinds of properties that can be checked with such a model, and describe how to use the Symbolic Model Verifier (SMV) tool to perform the verification. Finally, we use the Blockbuster® web site as a case study to demonstrate how our approach can uncover navigation problems that arise when new requirements are imposed.

65 citations


Proceedings ArticleDOI
12 Sep 2006
TL;DR: This study sets up on a former study described by Krüger and colleagues and sheds light on problems concerning the acquisition of survey knowledge while being navigated by a mobile handheld PC.
Abstract: In this paper we regard the navigation aid provided by mobile navigation systems in a real environment and the effects of these mobile assistants to the development of spatial knowledge. Therefore, we report on a user study concerning the acquisition of spatial knowledge. This study sets up on a former study described by Kruger and colleagues and sheds light on problems concerning the acquisition of survey knowledge while being navigated by a mobile handheld PC.

61 citations


Patent
15 Nov 2006
TL;DR: In this article, the authors provide methods, processes and systems for use in determining navigation, including methods that receive a communication at a mobile navigation system from an external device, determine whether the communication comprises navigation information, extract the navigation information when the communication includes navigation information and identify a navigation location based on the navigation location, retrieve a current location, and generate navigation instructions.
Abstract: The present embodiments provide methods, processes and systems for use in determining navigation. Some embodiments provide methods that receive a communication at a mobile navigation system from an external device, determine whether the communication comprises navigation information, extract the navigation information when the communication comprises navigation information, identify a navigation location based on the navigation information, retrieve a current location, and generate navigation instructions between the current location and the navigation location.

Patent
Toshifumi Arai1, Michio Morioka1
17 Feb 2006
TL;DR: In this paper, a navigation device includes a navigation information storage unit in which navigation information, including the user-provided data, is stored; and a human machine interface unit that outputs the user provided data and navigation information separately on an output device.
Abstract: A navigation device includes a navigation information storage unit in which navigation information, including the user-provided data, is stored; and a human machine interface unit that outputs the user-provided data and navigation information other than the user-provided data separately on an output device, that displays a warning message, read from the navigation information storage unit, and a screen prompting for an input for selecting whether to perform navigation processing based on the user-provided data when an instruction for performing navigation processing based on the user-provided data is input from an input device, and that causes a control unit, which performs navigation processing, to perform navigation processing based on the user-provided data when an instruction for performing navigation processing based on the user-provided data is input from the input device. In this way, a navigation system where user-provided data and official data are reliably combined can be provided.

Patent
Thomas F. Doyle1
01 Feb 2006
TL;DR: In this article, a computer assisted navigation system determines a recommended route for a vehicle to travel between a source and destination location, and provides exception notifications in some events where the vehicle travels a route different that the recommended route.
Abstract: A computer assisted navigation system determines a recommended route for a vehicle to travel between a source and destination location, and provides exception notifications in some events where the vehicle travels a route different that the recommended route. The vehicle includes a navigation system that has a location monitoring component. It is determined if the location of the vehicle is different than a location along the recommended route. An exception notification is generated when the vehicle is not along the recommended route it is likely that the reason the recommended route was not used is because the recommended route is not the optimal route between the source and destination locations.

Patent
06 Jul 2006
TL;DR: In this paper, a navigation device is adapted to the driver preferences, such as speed, time to prepare for an exit, and the way he responds to navigation instructions (promptly, or always too late for example).
Abstract: The invention relates to a navigation device wherein navigation instruction are adapted to the driver preferences. The driving behaviour of the driver is recorded (like speed, time to prepare for an exit etc.), and the way he responds to navigation instructions (promptly, or always too late for example). Traffic, weather and time information may be combined with information on the driving behaviour of the driver. This information is examined and used to build up a driver profile. This driver profile is used to adapt future navigation instructions. Alternatively, traffic and weather informat ion may be used to build up route and/or environmental profiles. These profiles can also be used separate form the driver profile to adjust the navigation instruction. The combination of these two techniques, building up a profile (or adapt a pre-defined profile) and adapt the navigation instructions, makes the navigation device a more personal-fit navigation aid. Also, giving the right instructions to a specific driver may contribute to a safer behaviour.

Patent
26 May 2006
TL;DR: In this article, a navigation interface is embedded in imagery and includes various controls for manipulating the imagery, including rotation, tilt, zoom and 360-degree movement of the image, which can provide incremental and continuous motion of imagery.
Abstract: A navigation interface is embedded in imagery and includes various controls for manipulating the imagery. The controls provide various navigation operations, including but not limited to: rotation, tilt, zoom and 360 degree. In some implementations, one or more controls can be operated to restore the imagery to a predetermined state. Some implementations include a control for providing 360 degree movement of imagery. One or more controls can provide incremental and continuous motion of imagery. The navigation interface can fade out or otherwise be obfuscated when the user is not interacting with the navigation controls. A compass or other graphic can replace the navigation interface when it is no longer displayed.

Patent
19 Dec 2006
TL;DR: In this article, contact is made with a touch-sensitive surface, and a navigation speed is determined according to contact movement speed, and information is continuously navigated according to the navigation speed.
Abstract: Information navigation methods. Contact is made with a touch-sensitive surface, and a navigation speed is determined according to contact movement speed. Information is continuously navigated according to the navigation speed.

Journal ArticleDOI
TL;DR: The design of future vehicle navigation systems should not rely on distance-to-turn information alone to enable a driver to locate forthcoming maneuvers but, rather, should incorporate good landmarks within the navigation instructions they present to drivers.
Abstract: OBJECTIVE: The objective of this study was to investigate the impact of landmark information of varying quality within drivers' navigation instructions on driving and navigation performance when navigating an unfamiliar route. BACKGROUND: Current vehicle navigation systems predominantly use distance-to-turn information to enable a driver to locate a forthcoming maneuver. Although it has been proposed that the design of driver navigation aids can be improved through the incorporation of landmarks as key navigation cues, little research has investigated how the quality of the landmark affects driver behavior. METHOD: An empirical field trial in a real traffic environment was undertaken with 48 participants in order to assess the effect of landmark quality on driver behavior when navigating an unfamiliar, complex, urban route. RESULTS: The use of good landmarks (as opposed to poor landmarks or distance information) as key verbal navigation cues resulted in significant improvements in navigation performance, driving performance, and driver confidence immediately preceding a turn. The use of distance information to locate a turn resulted in significantly more glances to the in-vehicle display. CONCLUSIONS: Good landmarks offer significant safety and performance benefits to a driver navigating an unfamiliar route. Poor landmarks can result in driver performance worse than that obtained using distance to turn to locate forthcoming maneuvers. APPLICATION: The design of future vehicle navigation systems should not rely on distance-to turn information alone to enable a driver to locate forthcoming maneuvers but, rather, should incorporate good landmarks within the navigation instructions they present to drivers. Language: en

Patent
06 Dec 2006
TL;DR: In this article, a navigation system provides navigation directions within particular locations within a facility, such as within a corporate campus, airport, resort, building, etc. The navigation system may respond to navigation requests for different types of facility target destinations such as a location, a person, a movable item, an event, or a condition.
Abstract: In one embodiment, a navigation system provides navigation directions within particular locations within a facility, such as within a corporate campus, airport, resort, building, etc. The navigation system may respond to navigation requests for different types of facility target destinations such as a location, a person, a movable item, an event, or a condition. Different location resources can be accessed depending on the type of requested target destination. For example, an employee database may be used to locate an office within the facility associated with navigation request that contains an employee name. A natural voice communication scheme can be used to access to the navigation system through a larger variety of networks and communication devices.

Patent
02 Jun 2006
TL;DR: In this paper, a method for multimodal computer navigation is presented, where two or more unimodal navigation signals are received from a user and interpreted, and these interpretations are fused to automatically determine the user's intended navigation selection.
Abstract: This invention concerns multimodal computer navigation, that is operation of a computer using traditional modes such as keyboard together with less conventional modes such as speech and gestures. The invention has particular application for navigation of information presentations, such as webpages and database user interfaces, and is presented as a method, a browser, software and a computer system. The information navigated is not described in a multimodal way. Two or more unimodal navigation signals are received from a user and interpreted. These interpretations are fused to automatically determining the user's intended navigation selection.

01 Jan 2006
TL;DR: A prototype WHUD on a real vehicle was installed and a new navigation system was realised that can display direction and distance to a destination as visual cues that the driver needs little eye movement to see.
Abstract: A unique visual navigation system for car drivers is introduced in which important information is projected onto a windshield head-up display (WHUD). The display area of the WHUD is actually the whole windshield. A prototype WHUD on a real vehicle was installed and a new navigation system was realised that can display direction and distance to a destination as visual cues. The primary advantage of the system is that the driver needs little eye movement to see them. The cues are easy for drivers to recognize because the sign position for the destination on the WHUD directly indicates the orientation toward it. A GPS and a geomagnetic sensor are used to estimate the vehicle's location and orientation, and data from these are used to move the navigation signs on the WHUD according to the vehicle's movements. For the covering abstract see ITRD E134653.

Proceedings ArticleDOI
Shohei Koide1, M. Kato1
01 Oct 2006
TL;DR: The newly proposed "Moudo-Cane" system extends the previously developed system 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.
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.

Patent
11 Apr 2006
TL;DR: A system management human-machine interface application for use in a process control system is described in this paper that enables users to view/monitor information regarding system status and performance and to initiate changes to the operation of system equipment, checkpoint control stations and execute diagnostics.
Abstract: A system management human-machine interface application for use in a process control system is described herein that enables users to view/monitor information regarding system status and performance and to initiate changes to the operation of system equipment, checkpoint control stations and execute diagnostics. A system management graphical user interface (GUI) includes a number of interface features that enhance the accessibility of system status information to users. Such enhancements include rendering selectable diagnostic information (e.g., online/offline status) on a system component navigation view. The GUI also provides access to a variety of system information including: alarms, messages, watched system management parameters, and a legend for symbols displayed in a system management navigation tree. Other enhancements include: a search function for quickly locating a device in the system to render detailed information, a navigation tree that displays equipment status via icons, and propagating fault statuses up to a highest level of the navigation tree.

Proceedings ArticleDOI
10 May 2006
TL;DR: This paper proposes a new system that automatically predicts user purpose and destination and presents various information based on predicted purpose without interaction from users.
Abstract: Because of advances in information technologies, car navigation systems have come into widespread use as useful tools to guide drivers where they want to go. Conventional car navigation systems present the most suitable route according to a destination input into the system. However, since the required operation to input the destination costs so much, users do not usually use car navigation systems for daily driving. In this paper, to exploit the effective functions of car navigation systems, we propose a new system that automatically predicts user purpose and destination. The proposed car navigation system presents various information based on predicted purpose without interaction from users.

Patent
26 Jul 2006
TL;DR: In this paper, a user previews a first navigational route generated by a first route generator, such as those incorporated in a navigation-related website, and a variety of location markers corresponding to different points along the route are generated.
Abstract: A method for matching navigational routes that are generated by separate route generators and are used by vehicle navigation systems. According to one embodiment, a user previews a first navigational route generated by a first route generator, such as those incorporated in a navigation-related website. From this first navigational route, a variety of location markers corresponding to different points along the route are generated. The location markers are then sent to a second route generator used by a vehicle navigation system, so that it can generate a second navigational route that is similar to the first route. The second navigational route is then sent to a navigation unit located on the vehicle, so that the driver can be given directions that generally correspond to the first navigational route which they initially reviewed on the navigation-related website.

Journal ArticleDOI
TL;DR: It is argued that the convergence in cartographic, media and communication appliances is made particularly clear by the increasing phenomenon of car navigation systems, and a hermeneutic-interpretative analysis is therefore less of an attempt to write a media history of car navigations systems, but more a space concepts overview by and through car Navigation systems.
Abstract: Recent cultural and social theory has paid increasing attention to the category of space. What has received less attention, however, are ideas of navigation through space. Topographic questions started to be debated within the framework of new media as early on as the 1960's, resulting in the interest since this time in localization of information and visualization of informational spaces being inherently connected with map and display media. This paper argues that the convergence in cartographic, media and communication appliances is made particularly clear by the increasing phenomenon of car navigation systems. The media scientific analysis reveals that the history of car navigation systems is characterized by more commonalities than differences. Invariant constants are the re-discovery of mnemotechnics with Dataland and ETAK Navigator, vertical travel facilities since Aspen Movie Map, step-by-step route guidance since Philips CARIN, 3D navigation, photorealistic representation of urban areas, translucent insert maps, split-screen displays, the superpositioning of the map onto the landscape and in reverse, as well as the constant oscillation between two-dimensional projection space and environmental space, whether with or without a head-up display. Given this observation of continuity, the fundamental question needs to be posed with reference to a media history of car navigations systems, namely: When do changes in the technical, conceptional and aesthetic properties actually induce differences for media diffusion explanations? This hermeneutic-interpretative analysis is therefore less of an attempt to write a media history of car navigation systems, but more a space concepts overview by and through car navigation systems. 1

Patent
Kengo Hayashi1
09 Mar 2006
TL;DR: In this paper, a navigation system for use in a subject vehicle for organizing a navigation instruction of a navigation route toward a destination in map data includes a closeness determination function for determining that a current position of the subject vehicle from the destination is a predetermined range.
Abstract: A navigation system for use in a subject vehicle for organizing a navigation instruction of a navigation route toward a destination in map data includes a closeness determination function for determining that a current position of the subject vehicle from the destination is a predetermined range, and a partial route audio navigation provision function for collectively providing the navigation instruction in an audible manner from the current position of the subject vehicle to the destination based on determination by the closeness determination function.

Book ChapterDOI
05 Nov 2006
TL;DR: A role-ontology is constructed and utilized to improve the usability of task-based service navigation and a basic task-model is enhanced by associating tasks with role-concepts defined in the new role- ontology.
Abstract: We have been developing a task-based service navigation system that offers to the user for his selected services relevant to the task the user wants to perform. We observed that the tasks likely to be performed in a given situation depend on the user’s role such as businessman or father. To further our research, we constructed a role-ontology and utilized it to improve the usability of task-based service navigation. We have enhanced a basic task-model by associating tasks with role-concepts defined in the new role-ontology. We can generate a task-list that is precisely tuned to the user’s current role. In addition, we can generate a personalized task-list from the task-model based on the user’s task selection history. Because services are associated with tasks, our approach makes it much easier to navigate a user to the most appropriate services. In this paper, we describe the construction of our role-ontology and the task-based service navigation system based on the role-ontology.

Patent
08 Jun 2006
TL;DR: In this paper, a client application such as a web browser is used to navigate documents, search engine data, additional navigation data, and other metadata can be displayed to the user within the client application.
Abstract: When a client application, such as a web browser, is used to navigate documents, search engine data, additional navigation data, and other metadata can be displayed to the user within the client application. Navigation data is logged and recorded as users transition from one document to another in in the client application. The recorded navigation data is analyzed and refined in order to identify navigation trends among users. The navigation trends are used to define associations between documents. The resulting document associations can be displayed to the user as the user navigates documents. Moreover, the displayed associations can be dynamically updated as a user transitions from one document to another.

Proceedings ArticleDOI
09 Jul 2006
TL;DR: A multimedia system that makes driving and navigation safer and easier by offering tools for route sharing in trip planning and video-based route guidance during driving and providing synthesized voice to reduce the driver's cognitive load is described.
Abstract: Trip planning and in-vehicle navigation are crucial tasks for easier and safer driving. The existing navigation systems are based on machine intelligence without allowing human knowledge incorporation. These systems give turn guidance with abstract visual instruction and have not reached the potential of minimizing driver's cognitive load, which is the amount of mental processing power required. In this paper, we describe the development of a multimedia system that makes driving and navigation safer and easier by offering tools for route sharing in trip planning and video-based route guidance during driving. The system provides a multimodal interface for a user to share his/her route with others by drawing on a digital map, naturally incorporating human knowledge into the trip planning process. The system gives driving instructions by overlaying navigational arrows onto live video and providing synthesized voice to reduce the driver's cognitive load, in addition to presenting landmark images for key maneuvers. We describe our observations which had motivated the development of the system, detailed architecture and user interfaces, and finally discusses our initial test findings in the real-road driving context

Proceedings ArticleDOI
01 Jan 2006
TL;DR: A developed white cane system that supports the independent walking of the visually impaired in the indoor space that is composed of colored navigation lines that include IC tags and an intelligent white cane that has a navigation computer is described.
Abstract: There are about 300,000 visually impaired persons in Japan. Most of them are old persons and, cannot become skillful in using a white cane, even if they make effort to learn how to use a white cane. Therefore, some guiding system that supports the independent activities of the visually impaired are required. In this paper, we will describe about a developed white cane system that supports the independent walking of the visually impaired in the indoor space. This system is composed of colored navigation lines that include IC tags and an intelligent white cane that has a navigation computer. In our system colored navigation lines that are put on the floor of the target space from the start point to the destination and IC tags that are set at the landmark point are used for indication of the route to the destination. The white cane has a color sensor, an IC tag transceiver and a computer system that includes a voice processor. This white cane senses the navigation line that has target color by a color sensor. When a color sensor finds the target color, the white cane informs a white cane user that he/she is on the navigation line by vibration. So, only following this vibration, the user can reach the destination. However, at some landmark points, guidance is necessary. At these points, an IC tag is set under the navigation line. The cane makes communication with the tag and informs the user about the land mark pint by pre recorded voice. Ten normal subjects who were blindfolded were tested with our developed system. All of them could walk along navigation line. And the IC tag information system worked well. Therefore, we have concluded that our system will be a very valuable one to support activities of the visually impaired.