Pedestrian Support System

• US 20090322566A1
• Filed: 09/10/2009
• Published: 12/31/2009
• Est. Priority Date: 03/27/2007
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: SHIRAKAWA, Kazuo
• Granted Patent: US 8,581,747 B2
• Time in Patent Office: Days
• US Class Current: 340/944
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01S 1/68 Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
• CPC Class Codes: G06Q 30/0267 Wireless devices
• CPC Class Codes: G08G 1/005 including pedestrian guidance indicator

Abstract

Disclosed is a pedestrian support system that supports the movement of a pedestrian through the use of tags. This pedestrian support system comprises: a plurality of tags having an information storage unit and that are placed on a cable that extends over a traveled path; a guide device that is held by a pedestrian that is traveling along a sidewalk and that is capable of non-contact communication with the tags, and a central control device, comprising a database in which tag map information is recorded, that uses that tag map information to creates path information having tag IDs that are in the order of tags that are located along a path from a starting location to a destination location and directly or indirectly sets that path information in the guide device. The guide device reads the tag IDs from the tags, compares the read tag IDs with the tag IDs in the path information to identify the location on the path where the pedestrian is walking, and provides information such as advancement direction to support the movement of the pedestrian.

Claims

1. A pedestrian support system that supports the movement of a pedestrian using tags, comprising:

a plurality of tags having an information storage unit and that are placed on cables that extend over a path being traveled;

a guide device, having an ID by which a central control device (terms described below) can uniquely identify the guide device, that is held by a pedestrian and is capable of non-contact communication with said tags; and

a central control device having a database in which tag map information is recorded, and that using that tag map information, creates path information having tag IDs that are arranged in the order of tags that are along a path from a starting location to a destination location and directly or indirectly sets that path information in said guide device;

wherein

said guide device reads tag IDs from said tags and compares those tag IDs with the tag IDs in said path information in order to identify where on the path the pedestrian is moving, then provides information to support the movement of the pedestrian based on that path information.

2. The pedestrian support system of claim 1 wherein

said guide device comprises:

a tag reader unit that is capable of non-contact communication with said tags;

path information memory that stores said path information;

a control unit that references tag IDs that are read from said tags, identifies at what location in the path information the pedestrian is walking, and at least determines the direction in which the pedestrian should go based on the path information; and

a unit for providing the pedestrian with the direction to travel in.

3. The pedestrian support system of claim 1, wherein

said central control device uses the tag IDs of the tags along a path from a starting location to a destination location to create path information having linear list structure, and includes data in that path information indicating the direction in which to travel.

4. The pedestrian support system of claim 1, wherein

when handicap information about the owner of the guide device is input together with the destination location information, said central control device creates path information that takes into consideration said handicap.

5. The pedestrian support system of claim 4, wherein

said guide device sends tag IDs that are read from said tags to said central control device, and that central control device manages the location of the pedestrian and communicates the location of the pedestrian by e-mail to a separately set terminal.

6. The pedestrian support system of claim 1, further comprising

local information control devices that are placed on constructs such as power poles along a sidewalk, and that act as a go-between for communication between said central control device and the tags, and between said central control device and guide device.

7. The pedestrian support system of claim 6, wherein

said local information control device comprises:

a tag reader/writer unit that is capable of non-contact communication with said tags; and

a radio communication unit that is capable of bi-directional communication with said guide device.

8. The pedestrian support system of claim 6, wherein when said cable is a power line,

said local information control device comprises:

a power line communication unit that transmits information to a specified tag over the power line; and

a radio communication unit that is capable of bi-directional communication with said guide device.

9. The pedestrian support system of claim 6, wherein

said local information control device reads information such as the type, scale, location information about an event from a tag that is built into a marker that is placed at a construction site, accident site or the like and notifies the central control device of that information;

and

said central control device updates the tag map information based on that information.

10. The pedestrian support system of claim 9, wherein when there is path information that includes a tag ID for the location of said construction site, accident site or the like,

said central control device creates a path that goes around that location, and sends the difference between the old path information and new path information to the guide device via said local information control device;

and

said guide device updates the path information that it has based upon said difference.

11. The pedestrian support system of claim 1, wherein

said guide device estimates the next tag ID from said path information, and when this estimated tag ID differs from the tag ID that is actually read from a tag, attaches the read tag ID and requests the central control device to reroute the path;

said central control device finds a new path from the location of the notified tag ID to the destination location and sends the difference between the old path information and new path information to the guide device; and

said guide device updates the path information that it has based on that difference.

12. The pedestrian support system of claim 1, wherein

said tag comprises two information storage areas such that information is written to the first information storage area that stores the tag ID and the like via a security means, and data from the outside is written to the second information storage area using a specified tag writer.

13. The pedestrian support system of claim 12, wherein

control is performed such that advertisement information or key information that allows advertisements is recorded in the second information storage area of said tag, and when passing through and area where advertisements are allowed, said guide device reads the advertisement information from that second information storage area of that tag and provides the advertisement information to the pedestrian, and when passing through an area where advertisements are not allowed, said guide device does not provide advertisement information to the pedestrian;

and

said central control device comprises a billing data base that records billing data for billing the owner of the guide device and the advertiser for the cost of providing path information, and bills the advertiser for part of the cost for providing path information for areas where the guide device allows advertisements, and bills the owner of the guide device for the entire cost for providing path information for areas where the guide device does not allow advertisements.