Systems, methods, and software for providing wayfinding orientation and wayfinding data to blind travelers

Abstract

To support the independence and mobility of blind pedestrians, the present inventors devised, among other things, free systems, methods, and software for providing narrative blind-ready wayfinding information. One exemplary system receives user input identifying a starting landmark and ending landmark in a particular selected geographic region, such as a city, university campus, government building, shopping mall, or airport. The system then searches a database for the corresponding narrative wayfinding instructions, and outputs them in the form of text or audio to guide a blind pedestrian from the starting landmark to the ending landmark. In the exemplary system, blind users select the geographic region as well as the starting and ending landmark from a voice-driven telephonic menu system and receive audible wayfinding instruction via mobile telephone. In some embodiments, the system also provides access to voice-driven restaurant menus.

1 . A blind traveler navigational data system having a server, the server comprising:
 a processor for receiving information identifying first and second landmarks from a set of predefined landmarks within a predefined geographic region;   a database for accessing and retrieving, blind-ready wayfinding instructions to for guiding a blind or visually impaired traveler from the first identified landmark to the second identified landmark; and   at least one communications interface for outputting the retrieved blind-ready wayfinding instructions to a blind or visually impaired user wherein the blind-ready wayfinding instructions include acoustic information specific to an environment associated with the first and second landmarks.   
     
     
         2 . The system of  claim 1 , wherein the blind-ready wayfinding instructions includes walking path surface information for facilitating trailing. 
     
     
         3 . The system of  claim 1 , wherein the means for identifying two of a set of landmarks includes means for receiving a selection of at least one of the first and second landmarks via a telephone-operated voice-response system. 
     
     
         4 . The system of  claim 1 , wherein the means for receiving information identifying first and second landmarks includes a graphical user interface at least partially defined by the server. 
     
     
         5 . The system of  claim 1 , wherein the second landmark is a building, and wherein the server further comprises means, responsive to a user command, for outputting a listing of indoor destination options associated with the second identified landmark; and means, responsive to selection of one of the indoor destination options, for accessing and retrieving from a database, blind ready wayfinding data for guiding a blind or visually impaired (legally blind) traveler from an entry door of the building to the selected one of the indoor destination options. 
     
     
         6 . The system of  claim 5 , wherein the one of indoor destination option is a business that leases space within the building. 
     
     
         7 . The system of  claim 5 , wherein the one of the indoor destination options is an automatic teller machine in the building. 
     
     
         8 . The system of  claim 5 , wherein the one of the indoor destination options is a restroom within the building. 
     
     
         9 . The system of  claim 5 , wherein the one of the indoor destination options is a wheelchair ramp within the building. 
     
     
         10 . The system of  claim 5 , wherein the one of the indoor destination options is a tactile map within the building. 
     
     
         11 . The system of  claim 5 , wherein the one of the indoor destination options is an elevator within the building. 
     
     
         12 . The system of  claim 5 , wherein the one of the indoor destination options is an escalator within the building. 
     
     
         13 . The system of  claim 5 , wherein the one of the indoor destination options is a water fountain within the building. 
     
     
         14 . The system of  claim 5 , wherein the one of the indoor destination options is an restaurant within the building, and the server further includes means, responsive to a user command, for presenting at least a portion of a voice navigable voice menu of food items for the restaurant. 
     
     
         15 . The system of  claim 14 , wherein the server further includes:
 means, responsive to a user voice command, for receiving one or more menu selections;   means responsive to a subsequent user voice command for playing back the one or more menu selections; and   means responsive a subsequent user voice command for communicating an order based on the one or more menu selections to an order management system within the restaurant.   
     
     
         16 . The system of  claim 14 , wherein the server further includes means, responsive to a user command, for eliminating one or more menu items from presentation during an access session. 
     
     
         17 . The system of  claim 16 , wherein the means for eliminating is configured to receive an elimination command from a user during a presentation of a first portion of the voice menu, and during a subsequent presentation of the voice menu for the user (during the session) the first portion is not presented. 
     
     
         18 . The system of  claim 14 , wherein the server includes dietary preference data for a user and means, responsive to stored dietary preference data for the user, for inhibiting playback of one or more portions of a voice navigable voice menu. 
     
     
         19 . A method implemented using at least one processor and memory, the method comprising:
 receiving into the memory information identifying first and second landmarks from a set of predefined landmarks within a predefined geographic region;   in response to the identified first and second landmarks, using the processor to access and retrieve from a database, blind-ready wayfinding instructions for guiding a blind or visually impaired traveler from the first identified landmark to the second identified landmark; and   outputting the retrieved blind-ready wayfinding instructions to wireless device carried by a blind or visually impaired user wherein the blind-ready wayfinding instructions include acoustic information specific to an environment associated with the first and second landmarks.   
     
     
         20 . The method of  claim 19 , wherein the wireless device is a mobile telephone and the wayfinding instructions comprise a text-to-speech synthesis of textual wayfinding instructions. 
     
     
         21 . A machine-readable data storage medium comprising machine-executable instructions for:
 receiving into memory information identifying first and second landmarks from a set of predefined landmarks within a predefined geographic region;   in response to the identified first and second landmarks, causing a processor to access and retrieve from a database, blind-ready wayfinding instructions for guiding a blind or visually impaired traveler from the first identified landmark to the second identified landmark; and   causing a device associated with the processor to output the retrieved blind-ready wayfinding instructions to a wireless device carried by a blind or visually impaired user wherein the blind-ready wayfinding instructions include acoustic information specific to an environment associated with the first and second landmarks.   
     
     
         22 . The machine-readable data storage medium of  claim 21 , wherein the wireless device is a mobile telephone and the wayfinding instructions comprise a text-to-speech synthesis of textual wayfinding instructions.