JP2002022481A - Pedestrian guiding system and method and storage medium used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To present a modified path in the case that a pedestrian is off a designated path to a destination. SOLUTION: The pedestrian guiding system is comprised of a portable terminal capable of radio communication and information providing stations installed at a plurality of predetermined locations to perform radio communication with the portable terminal. The portable terminal is provided with a setting part to set a destination, an acquiring part to acquire present location information and path information including a designated path to the destination from the information providing station on the basis of the ratio communication, a display part to display the present location and the designated path by characters and images on the screen on the basis of the present location information and the path information, an extracting part to extract the registration number of the information providing station from the present location information, and a determining part to determine whether the present location is off the designated path or not on the basis of the registration number. At the reception of the determination result that the present location is off the designated path, the acquiring part acquires modified path information from the present information providing station at the present location, and the display part displays the modified path from the present location as a starting location to the destination on the basis of the modified path information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transmitting route information from a departure place to a destination to a pedestrian via a portable information terminal having a wireless communication function from information providing stations installed at a plurality of predetermined locations by wireless communication. The present invention relates to a pedestrian guidance system and method to be presented, and a storage medium used for the system and method.

[0002]

2. Description of the Related Art In recent years, as a system for reducing the driving load of an automobile, for example, a GPS (global positioni) has been used.
ng system (global positioning system), receiving position information from the information service center by radio waves, displaying the vehicle's traveling route and current position on the screen of the display unit, or notifying by voice. A car navigation system for guiding a vehicle to a destination is widely used. There is also a car navigation system having a function of performing a map matching process each time the vehicle travels a certain distance and correcting the current position when the vehicle deviates from the route. There is a problem that the process up to the judgment is complicated.

As a conventional technique for solving this problem, for example, according to Japanese Patent Application Laid-Open No. 5-296776, a trajectory actually traveled is calculated from a geomagnetic sensor and a speed sensor, and the trajectory and a route to be guided are calculated. A route guidance device has been proposed which easily detects a deviation from the route by comparing the above.

[0004]

For example, not only for vehicles but also for pedestrians, a route from a departure place to a destination can be obtained by using a portable information terminal composed of small circuit components such as a cellular phone. A pedestrian guidance system that can acquire information from information providing stations installed at a plurality of predetermined locations and presents a corrected route when the pedestrian is out of the designated route to the destination, and guides the pedestrian correctly. Requested.

For example, when a car navigation system using GPS is used as a man navigation system, sensors and circuit configurations for obtaining highly accurate positioning within an error of several meters within a time period of several seconds are miniaturized or reduced in size. There is a problem that it is difficult to design at a low cost.

When a car navigation system using radio waves is used as a man navigation system, it is necessary to strictly determine the frequency band and radio wave intensity so as not to interfere with radio waves for other uses. In addition, when the minimum necessary information is frequently updated, there is a problem that using an existing paid communication line may increase communication costs.

Further, since the route guidance device described in Japanese Patent Application Laid-Open No. 5-296776 is originally configured as a car navigation system, it is configured with specific circuit components for detecting the direction and speed of the vehicle. It cannot be used as a pedestrian route guidance system.

The present invention has been made in view of the above circumstances. For example, using a portable terminal composed of small circuit components such as a portable telephone, a plurality of predetermined locations are located in a narrow area. If the pedestrian is out of the designated route to the destination from the information providing station installed in Provided is a pedestrian guidance system and method capable of presenting a corrected route to a destination and guiding a pedestrian correctly, and a storage medium used therefor.

[0009]

SUMMARY OF THE INVENTION The present invention comprises a portable terminal capable of wireless communication and an information providing station installed at a plurality of predetermined locations and communicating wirelessly with the portable terminal. A setting unit for setting the current location information and a route information including a designated route from the information providing station to the destination by wireless communication, and a text or image of the current location and the designated route based on the current location information and the route information. A display unit for displaying the registration number of the information providing station from the current location information; and a determination unit for determining whether or not the current location deviates from the designated route based on the registration number. Is outside the designated route, the acquisition unit acquires the corrected route information from the information providing station at the current location, and the display unit displays the current route based on the corrected route information. Which is a pedestrian guiding system and displaying the modified route to departure and the destination.

According to the present invention, a plurality of information providing stations installed at predetermined locations in a narrow area and commonly used by using a portable terminal constituted by small circuit components such as a portable telephone, If the route information that specifies the route from the departure point to the destination can be obtained, and the pedestrian is out of the specified route to the destination, a corrected route to the destination starting from the current location is presented, and walking is performed. Can be properly guided.

The display unit is configured to, when displaying a corrected route from the current position to the destination based on the corrected route information, identify the installation location of the next information providing station on the corrected route. You may. According to this configuration, when the pedestrian is out of the designated route to the destination, the pedestrian presents the corrected route that clearly indicates the installation location of the next information providing station. You can reconfirm whether you are off the route.

[0012] The portable terminal further includes an acquisition information storage unit for updating and storing the current location information and the route information acquired by the acquisition unit, and the display unit displays the current location information and the route information based on the updated and stored current location information and the route information. And a route to the destination may be displayed on the screen in characters or images. According to this configuration, the updated current route and the route to the destination are displayed on the screen of the display unit of the mobile terminal, so that a route that is easy for the pedestrian to understand can be presented.

The portable terminal and the information providing station may each include an infrared communication unit capable of optical communication. According to this configuration, the communication circuit configuration is simpler than that of the car navigation system of the GPS system or the radio wave system, so that it is effective in reducing the size and cost of the portable terminal. In addition, the range in which infrared communication is possible is several meters, and does not overlap with the communication range of another information providing station, so that an accurate current position can be obtained.

According to another aspect of the present invention, there is provided a pedestrian guidance method for a system including a mobile terminal capable of wireless communication and an information providing station installed at a plurality of predetermined locations and wirelessly communicating with the mobile terminal. In the portable terminal,
Using the setting unit, set the destination, using the acquisition unit, obtain the current location information and route information including the designated route to the destination from the information providing station by wireless communication, using the display unit, the current location information And the current location and the designated route are displayed on the screen in characters or images based on the route information, and using the extraction unit,
The registration number of the information providing station is extracted from the current location information, and a determination unit is used to determine whether or not the current location is off the designated route based on the registration number. The unit acquires corrected route information from an information providing station at a current location, and the display unit displays a corrected route to a destination starting from the current location based on the corrected route information. A method is provided.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. The present invention is not limited by this.

FIG. 1 is a block diagram showing the overall configuration of a pedestrian guidance system according to one embodiment of the present invention. As shown in FIG. 1, the pedestrian guidance system of the present invention includes a navigation terminal (portable terminal) 100 and a station (information providing station) 120.

The navigation terminal 100 includes a current location information acquisition unit 101, a current location information processing unit 102, a route data determination unit 103, a route data storage unit 104, and a destination setting unit 1.
05, route data acquisition unit 106, route data processing unit 10
7, route data deletion unit 108, installation information acquisition unit 109,
A display unit 110, an infrared communication unit 111, and a CPU, ROM, R
It comprises a navigation control unit 112 having an AM.

The current location information acquiring unit 101 is constituted by, for example, a control program, and acquires current location information including the registration number id from the station 120 by wireless communication. The current location information processing unit 102 is configured by, for example, a control program, and functions as an extraction unit that extracts registration information of a station that can determine whether or not the vehicle is a correct transit point from the current location information.

The route data determining unit 103 determines whether or not the current location is a correct transit point by comparing the route data with current location information including, for example, a registration number id that is constituted by a control program and that can uniquely identify a station. I do. The route data storage unit 104 includes, for example, a RAM, an EEPRO
M, floppy (registered trademark) disk, CD-ROM,
It is configured with a storage control program and stores the acquired route data.

The destination setting unit 105 includes, for example, a small keyboard, a pen tablet, and an input control program, and a user sets a destination. Route data acquisition unit 1
Reference numeral 06 includes, for example, a control program, and acquires route data from the current location to the destination from the station 120 by wireless communication. The route data processing unit 107
For example, the route data that is configured by the control program and that is stored in the route data storage unit 104 is updated.

The route data erasing unit 108 includes, for example, an erase key and a control program, and erases unnecessary route data when a destination is reached or when updating to new route data. Installation information acquisition unit 109
Is configured by, for example, a control program, and acquires the installation information of the station that is the next stopover from the current station by wireless communication.

The display unit 110 includes, for example, a liquid crystal display, a plasma display, or an EL display,
It is composed of a display control program and the like, and displays map data, route data, and installation information with images and characters. If it is a transit point, the remaining route data is shown. If it is not a transit point, the corrected route data with the current location as a new departure point is displayed. The infrared communication unit 111 is, for example, IrDA
It is composed of an infrared light emitting circuit, an infrared light receiving circuit, a communication control program, and the like capable of optical communication of the control method, and communicates with the station 120 by infrared light.

The station 120 has a command receiving unit 1
21, command determination unit 122, current location information selection unit 12
3. Current location information storage unit 124, route data selection unit 12
5, route database storage unit 126, installation information selection unit 1
27, an installation information database storage unit 128, a data transmission unit 129, and a station control unit 130 having a CPU, a ROM, and a RAM for controlling these units by a control program.

The command receiving section 121 is, for example, IrDACo
It is composed of an infrared light receiving circuit capable of ntrol-type optical communication and a communication control program, and functions as an infrared communication unit that receives a “current location information acquisition” command, “route data acquisition” command, and “installation information acquisition” command from a navigation terminal. I do. The command determination unit 122 is configured by, for example, a control program, and determines each command.

The current location information storage unit 124 stores, for example, RA
M, EEPROM, floppy disk, CD-RO
M, a storage control program, etc., for storing the current location information of the station. The current location information selection unit 123
For example, it is configured by a control program, and receives the current location information acquisition command to extract the specified current location information.

The route database storage unit 126 includes, for example, a RAM, an EEPROM, a floppy disk,
-It is composed of a ROM and stores a route database. The route data selection unit 125 is configured by, for example, a control program, and extracts a designated route data in response to a route data acquisition command.

The installation information database storage unit 128 includes, for example, a RAM, an EEPROM, a floppy disk,
It is composed of a D-ROM and stores an installation information database. The installation information data selection unit 127 receives the installation information acquisition command and extracts the specified installation information.

The data transmission unit 129 is, for example, IrDACont
It is composed of an infrared light emitting circuit capable of optical communication of the rol system and a communication control program, and functions as an infrared communication unit that transmits the extracted current location information, route data, and installation information to the navigation terminal side.

According to another aspect of the present invention, a storage medium used in a system including a navigation terminal 100 capable of wireless communication and stations 120 installed at a plurality of predetermined locations and communicating with the navigation terminal 100 wirelessly. In the mobile terminal, a function of setting a destination by using the setting unit 105, and obtaining units 101, 106,
A function of acquiring route information including a current route information and a designated route from the station 120 to the destination by using the wireless communication 109; and displaying the current location and the designated route based on the current location information and the route information by using the display unit 110. And a function for extracting the registration number of the station 120 from the current location information using the current location information processing unit 102, and a function for displaying the current location from the designated route based on the registration number using the determination unit 103. A function of determining whether the vehicle is out of the designated route; and a function of acquiring corrected route information from the information providing station at the current position when the current position is out of the designated route; Is a step for causing a computer to execute a function of displaying a corrected route from a current location to a destination based on the corrected route information. Storage medium is provided which stores the user guidance program. The navigation terminal of the present invention can be realized by storing this storage medium in the RAM of the navigation control unit 112 using a storage medium reading device.

FIG. 4 is a diagram showing a data processing procedure (1) between the navigation terminal and the station according to the present embodiment. In FIG. 4, a data processing procedure between the navigation terminal and the station when the user (pedestrian) of the navigation terminal sets the place of departure at a certain station will be described.

As shown in FIG. 4, the command transmitted from the navigation terminal is compared with the command determination data 401 by the command determination section 122 on the station side.
It is determined whether the command is a current location information acquisition command, a route data acquisition command, or an installation information acquisition command.

FIG. 12 is a diagram showing an example of the data structure of a command format and a data pattern according to this embodiment. FIG. 12A shows the data structure of the command format, and FIG. 12B shows the data structure of the data pattern. Therefore, if the first byte of the command is “0 × 01”, the command determination unit 122 determines that the command is a current location information acquisition command.
If x03 ", it can be determined that the command is an installation information data acquisition command.

FIG. 8 is a diagram showing an example of a station installation network according to this embodiment. Multiple stations S1, S
In the installation network of 2, S3, S4, S5, S6, S7, S8, and S9, the case where the departure place is the station S2 is as follows.
This will be described with reference to FIG. The current location information 402 including the id of the station S2, the map coordinates, and the map data is selected from the current location information storage unit 124 and transmitted to the navigation terminal. On the navigation terminal side, the id of the station S2 is extracted.

Next, the route data existence flag 405 in the route data storage unit 104 is referred to. This flag is "0"
That is, since the route data has not yet been stored in the route data storage unit 104, it is assumed that the user has not started route guidance, and the user inputs a destination code to the navigation terminal, and A ground code is added after the first byte “0 × 02” to generate a route data acquisition command, which is transmitted to the station S2.

The station S2 determines from the command determination data 401 that the command is a route data acquisition command, and uses the destination code in the route database storage unit 126 and the station ID conversion table 408 based on the destination code in the route database storage unit 126. The local station id is obtained, the required route data 410 is selected from the route database 409 also in the route database storage unit 126, and transmitted to the navigation terminal. At this point, the path data existence flag changes from “0” to “1”. The received route data 411 includes the station id of the waypoint and the map coordinates.

Here, the passage flag is a value determined in the navigation terminal, and is all “0” immediately after the route data is acquired. Each time information is obtained, the corresponding pass flag becomes "1". From the route data 411, only the station id of the transit point is extracted and set as the transit point id set 412.

The first id in this is stored in the first byte “0 ×
03 ”is added to the station as an installation information acquisition command and transmitted to the station. The station side determines in the command determination 401 that the command is an installation information acquisition command, and the installation information stored in the installation information database storage unit 128 is stored. From the database 414, the next station id
The installation information data 415 corresponding to 413 is selected and transmitted to the navigation terminal. The transmitted installation information data is displayed as a navigation terminal screen 416.

Here, the upper part of the screen 416 displays the map data in the current location information 403 as an image, and displays a mark indicating the current location station S2 on the current location information 403.
A mark drawn at the position of the map coordinates shown in 03 and indicating the stations S3, S4, S5, S7 at the waypoint;
, Are drawn at the map coordinate positions shown in the route data 411, and a route is drawn in dashed lines in the order of,,, and, and a map is drawn in the lower frame portion of the screen 416. Installation information data 415
Are displayed in characters in the data pattern shown in FIG.

FIG. 5 is a diagram showing a data processing procedure (2) between the navigation terminal and the station according to the present embodiment. In FIG. 5, a description will be given of a processing procedure of communication data between the navigation terminal and the station when the user of the navigation terminal has arrived at the station S3 at the correct transit point (where the pedestrian has not deviated from the designated route).

As shown in FIG. 5, after acquiring the current location information 503 by the current location information acquisition command, the station S3
The id 504 is taken out. Since the route data existence flag is "1" and it is determined that the route data already exists, it is determined that the stopover location id set 507 extracted from the route data 506 includes the id of the station S3, and the station S3 Is set to "1", and the id of the station S3 is removed from the route point id set.

Subsequently, when the installation information data is acquired by the installation information acquisition command, the information is displayed as a navigation terminal screen 513. Here, the upper part of the screen 513 is
The path from the screen drawn on the screen 416 in FIG. 4 to the station S3 at the current location, that is, the mark on the screen, the path from the mark to the mark, and the broken line are deleted. In the lower frame portion of the screen 513, the contents of the received installation information data 512 are displayed as characters in a data pattern shown in FIG.

FIG. 6 is a diagram showing a data processing procedure (3) between the navigation terminal and the station according to the present embodiment. In FIG. 6, the user of the navigation terminal intends to move to the station S4, and
The processing procedure of the communication data between the navigation terminal and the station when the mobile terminal moves to (deviates from the designated route) will be described.

As shown in FIG. 6, after the current location information 603 is acquired by the current location information acquisition command, the station S8
Is taken out. Route data existence flag is "1"
And the route data already exists, but the station S
Since the id No. 8 is not included in the waypoint id set, a route data acquisition command is used by the route data acquisition command using the destination code 608 already set at the departure station S2 (see FIG. 4). Data 613 is newly acquired, and the route data is replaced. Subsequently, when the installation information data is acquired by the installation information acquisition command, the information is displayed as a navigation terminal screen 618.

Here, the upper part of the screen 618 displays the map data in the current location information 603 as an image, and displays a mark indicating the current location station S8 on the current location information 603.
The route data 61 is drawn at the position of the map coordinates shown in FIG.
3 is drawn at the position of the map coordinates shown in FIG.
Then, a map is created in which the route that passes in the order of is drawn with a broken line, and the contents of the received installation information data 617 are displayed in characters in the data pattern shown in FIG.

FIG. 7 is a diagram showing an example of registration numbers of stations installed at a plurality of predetermined locations according to the present embodiment. 7, the databases stored in the current location information storage unit 124, the route database storage unit 126, and the installation information database storage unit 128 on the station side will be described.

For example, two stations are installed diagonally opposite an intersection, a registration number (id code) for uniquely identifying these stations is determined, and stored in the current location information storage unit 124 of each station. If the address of the intersection is, for example, “492 Minosho-cho, Yamatokoriyama-shi”,
Using the abbreviation of the address and the serial number of the station, YKMN
-01, YKMN-02, etc.
These id codes are set in the current location storage unit 124 of each corresponding station when the operation of each station is started.

FIG. 9 is a diagram showing the contents stored in the route database storage unit of the station of this embodiment. FIG.
Represents station S2- in the station route network shown in FIG.
9 shows an example of a route database storage unit in S9. The route database storage unit of the station S2 will be described. Station IDs serving as destinations are listed in vertical items, and station ids serving as stopovers are listed in horizontal items. One horizontal line represents a route to one destination, and the map coordinates of each transit point are stored in the last line.

However, in FIG. 9, in order to simplify the explanation,
The description will be made as S1, S2,... instead of the id. The specific route data “S2 → S3 → S4” where the departure place of the user is station S2 and the destination is station S7.
In order to store “S5 → S7”, “0” is assigned to the stopover S2, “1” is assigned to the stopover S3, “2” is assigned to the stopover S4, and “2” is assigned to the stopover S5 in the horizontal row where the destination is S7. “3” and “4” are stored in the waypoint S7, and “−1” is stored in the station that is not the waypoint.

At the end of the line corresponding to each destination, the number of passing stations is stored in advance as MAX.
Similarly, row data corresponding to other destinations can be configured.
With such a configuration, by referring to the row corresponding to the specific destination, by tracing the station ids corresponding to the values satisfying the conditions of 1 or more and MAX or less in the order of smaller values, A set of station ids is obtained.

In the case of this embodiment, the departure place is station S
The route point id set whose destination is the station S7 in step 2 is {S3, S4, S5, S7}. If the route data selection unit 125 selects route data to a certain destination by using the database configured in this way, the route database storage unit 126 of the current station (departure place) is stored in the route database storage unit 126 of the destination. Station id
, A set of station ids to be transit points is obtained.

FIG. 11 is a diagram showing the contents stored in the station installation information database according to this embodiment. FIG.
As shown in FIG. 8, the installation information database storage unit 128 of the station S3 stores the installation location, installation direction, height, and station of each of the stations S2, S4, and S8 of the route network of FIG. S3
A database based on the azimuth based on the communication direction and the latest situation in the vicinity. When the waypoint id set on the navigation terminal side is {S3, S4, S5, S7}, the installation information data selection unit 127 selects the installation information data of the station S3.

FIG. 10 shows a station id according to this embodiment.
FIG. 6 is a diagram showing an example of a conversion table of FIG. In FIG. 10, an embodiment will be described in which a destination station id is obtained from a destination code included in a “route data acquisition” command received from a navigation terminal.

A conversion table for converting a destination code to a station id closest to the destination is stored in a database, and the conversion from the destination code to the nearest true destination (supermarket, police box, etc.) matching the destination code is performed. The station id installed is configured to be obtained.

By including this database in the route database storage unit 126 of all stations, even if the station id closest to the user's true destination (supermarket, police box, etc.) is not known on the navigation terminal side, The navigation terminal sets a destination code designating a true destination in the “route data acquisition” command for the current location station and transmits the same, thereby setting the station id closest to the true destination to the current location station. Obtained from

Next, as the user of the navigation terminal moves from the station S2 to the station S7, the waypoint i of the route data is stored in the navigation terminal.
The transition of the d set will be described. First, at the station S2, the id of S2 is obtained. Since there is no route data yet, a destination is set and route data is obtained. The via point id set is {S3, S4, S5, S7}.

Since the head of the transit point id set is S3, the installation information of the station S3 is obtained. Next, it moves to the station S3 and obtains the id of the station S3. Since there is already route data and S3 is included in the waypoint id set {S3, S4, S5, S7}, S3
To delete. The remaining waypoint id sets $ S4, S5, S
Since 7 で is not empty and its head is S4, the installation information of the station S4 is obtained. Next, as an example, the place to be moved to the station S4 is when the user goes wrong,
It is assumed that the user has moved to the station S8.

At the station S8, the id of S8 is obtained and compared with the waypoint id set {S4, S5, S7}. Since S8 is not included in this set, route data {S5, S7} is newly obtained. The beginning of this data set is S5
Therefore, the installation information of the station S5 is obtained. Next, as an example, when the user moves, jumps over the station S5 and moves to the station S7, the station S7 obtains the id of S7.

The waypoint id sets {S5, S7} to S7
, Ie, S5 and S7 are erased, and the waypoint data becomes empty. Thereafter, after the user actually confirms the true destination (supermarket, police box, etc.), the route data erasing unit 108 erases the route data in the route data storage unit 104, that is, FIG. 5. Reset the values of the path data presence flags 405, 505, and 605 shown in FIG. 6 to "0".

FIG. 2 is a flowchart showing a data processing procedure on the navigation terminal side according to this embodiment. FIG.
Will be described based on the operation of each unit in FIG. Step S201: When the user of the navigation terminal starts operating the terminal, the current location information acquisition unit 101
After transmitting the “obtain current location information” command to the current location station, the current location information is received from the current location station.

Step S202: Current location information processing section 10
According to 2, the current location station id for uniquely identifying the current location station from the current location information is extracted. Step S203: By the route data determination unit 103,
The presence / absence of route data in the route data storage unit 104 is determined. Here, if it is determined that there is route data,
The process proceeds to step S204, and if it is determined that there is no route data, the process proceeds to step S211.

Step S211: After the destination setting unit 105 sets the destination code in the navigation terminal, the process proceeds to step S209. Step S204: By the route data determination unit 107,
A transit point id set stored in the route data storage unit 104, that is, a “set of ids for uniquely identifying each station that is a transit point (including a destination) from the current location to the destination” is extracted. Then, the process proceeds to step S205.

Step S205: route data judgment section 10
By 3, it is determined whether or not the station id of the current location is included in the route location id set. Here, if it is determined that the current location station id is not included in the transit location id set, the process proceeds to step S209.

Step S206: If it is determined in step S205 that “the station id of the current location is included in the via-location id set”, the route data processing unit 107 selects the past via-location (from the past via location It does not matter whether the user has actually passed through the transit point) or removes each transit point id from the route data to the current station, and overwrites the transit point id set on the route data storage unit 104. It memorizes and it progresses to step S207.

Step S207: Similarly, the route data judgment unit 103 judges whether or not the contents of the waypoint id set are empty. Here, if it is determined that the transit point id set is not empty, the process proceeds to step S210. If it is determined that the transit point id set is empty, the process proceeds to step S208. Step S208: When the user arrives at the destination,
The route data erasing unit 108 allows the route data storage unit 1
04 is deleted. Here, the pedestrian guidance processing on the navigation terminal side for guiding the user to a desired destination is ended.

Step S209: route data acquisition unit 10
According to 6, after a “route data acquisition” command including the destination code is transmitted to the current location station, one type of route data is received from the station. Step S210: By the installation information acquisition unit 109,
After transmitting the “acquisition of installation information” command to the station at the current location, the installation information of the station that will be the next stopover on the route data is received from the station at the current location.

Step S212: The acquired installation information is
The screen display unit 110 displays the screen 41 shown in FIG. 4 together with the map data acquired by the current location information acquisition unit 101 and the route data stored in the route data storage unit 104.
6, a screen 513 shown in FIG. 5, and a screen 618 shown in FIG. 6 are displayed on the navigation terminal. Thereafter, after the user has actually moved to the next station, step S10
The processing of 1-S212 is repeated from the beginning.

The data processing on the station side will be described with reference to the flowchart of FIG. On the station side,
The navigation terminal obtains a “current location information” command in step S201, a step S209 obtains “route data” command, and a step S2.
The “acquisition of installation information” command in the process of 10 is received via the command receiving unit 121.

Next, the command determining section 122 determines what the received command is. This judgment is
As described with reference to FIG. 4, the first byte of the command is “0 ×
01 ”,“ Get current location information ”command,“ 0 × 0 ”
2 ”,“ Get route data ”command,“ 0 × 03 ”
If so, it is determined that the command is an “acquisition of installation information” command, and the determination is made by providing the command determination 401 in the command determination unit 122.

If the command is determined to be a “current location information acquisition” command, the current location information is extracted from the current location information storage unit 124 by the current location information selection unit 123 and transmitted to the navigation terminal by the data transmission unit 129. If the command is determined to be a “route data acquisition” command, the destination data included in the command is referred to the destination code 407 as described with reference to FIG. One type of route data is extracted from the route database storage unit 126, and transmitted to the navigation terminal by the data transmission unit 129.

If the command is determined to be an “acquisition of installation information” command, the installation information selection unit 127 reads the installation information of the station that will be the next stopover on the route data from the installation information database storage unit 128. As described with reference to FIG. 4, the data is extracted and transmitted to the navigation terminal by the data transmission unit 129.

FIG. 3 is a flowchart showing a data processing procedure on the station side according to the present embodiment. The flowchart in FIG. 3 will be described based on the operation of each unit in FIG. Step S301: When the operation of the station is started for the first time, the command receiving unit 121 enters a state in which it has a command from the navigation terminal 100.

Step S302: If there is a command,
The command determination unit 122 determines whether the first byte of the command is “0 × 01”, that is, a “current location information acquisition” command as shown in the command format of FIG. Step S303: If the command is not the “acquire current location information” command, the first command of the command is
It is determined whether the byte is “0 × 02”, that is, a “path data acquisition” command as shown in the command format of FIG.

Step S304: If the command is not a “path data acquisition” command, the first byte of the command is “0 × 03” by the command determination unit 122, that is, an “installation information acquisition” command as shown in the command format of FIG. It is determined whether or not. Step S305: If the command is “acquisition of installation information” command, the installation information data selection unit 127 looks at “next station id” in the “acquisition of installation information” command,
From the installation information database as shown in FIG.
Select the installation information data corresponding to "d".

Step S306: At step S303,
If the command is a "route data acquisition" command, the route data selecting unit 125 converts the destination code in the "route data acquisition" command into a station id using a conversion table as shown in FIG. Step S307: The route data corresponding to the required destination is selected from the route database as shown in FIG.

Step S308: At step S302,
If the command is “acquire current location information”, the current location information selection unit 123 selects the current location information from the current location information storage unit 124. Step S309: the current location information selected by the current location information selection unit 123 or the route data selection unit 12
The route data selected by 5 or the installation information data selected by the installation information data selection 127 is transmitted to the navigation terminal 100 by the data transmission unit 129.

If the command does not conform to any of the command formats shown in FIG. 12 by the command determination unit 122, the command is ignored as an undefined command, and the process returns to step S301 to wait until the next command is received. Perform the operation.

[0077]

According to the present invention, a plurality of information providing stations are provided at a plurality of predetermined locations in a narrow area using a portable terminal composed of small circuit components such as a portable telephone, and can be shared. Can obtain route information that specifies the route from the departure point to the destination, and if the pedestrian is out of the specified route to the destination, presents the corrected route from the current location to the destination. , Can correctly guide pedestrians.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a pedestrian guidance system according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a data processing procedure on the navigation terminal side according to the embodiment.

FIG. 3 is a flowchart illustrating a data processing procedure on the station side according to the embodiment.

FIG. 4 is a diagram showing a data processing procedure (1) between the navigation terminal and the station according to the embodiment.

FIG. 5 is a diagram showing a data processing procedure (2) between the navigation terminal and the station according to the embodiment.

FIG. 6 is a diagram showing a data processing procedure (3) between the navigation terminal and the station according to the embodiment.

FIG. 7 is a diagram illustrating an example of registration numbers of stations installed at a plurality of predetermined locations according to the embodiment.

FIG. 8 is a diagram illustrating an example of a station route network according to the present embodiment.

FIG. 9 is a diagram illustrating storage contents of a route database storage unit of the station according to the present embodiment.

FIG. 10 is a diagram illustrating an example of a conversion table of a station id according to the present embodiment.

FIG. 11 is a diagram showing stored contents of a station installation information database according to the present embodiment.

FIG. 12 is a diagram illustrating a data configuration example of a command format and a data pattern according to the present embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Navigation terminal 101 Current location information acquisition unit 102 Current location information processing unit 103 Route data determination unit 104 Route data storage unit 105 Destination setting unit 106 Route data acquisition unit 107 Route data processing unit 108 Route data deletion unit 109 Installation information acquisition unit 110 Screen Display unit 111 Infrared communication unit 112 Navigation control unit 120 Station 121 Infrared command reception unit 122 Command determination unit 123 Current location information selection unit 124 Current location information storage unit 125 Route data selection unit 126 Route database storage unit 127 Installation information data selection unit 128 Installation Information database storage unit 129 Infrared data transmission unit 130 Station control unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09B 29/10 G09B 29/10 A

Claims (6)

[Claims] 1. A mobile terminal capable of wireless communication, and an information providing station installed at a plurality of predetermined locations and wirelessly communicating with the mobile terminal, the mobile terminal comprising: a setting unit for setting a destination; An acquisition unit that acquires, via wireless communication, route information including a designated route from the providing station to the current location information and the destination, and a display unit that displays the current location and the designated route on the screen in characters and images based on the current location information and the route information. An extraction unit that extracts the registration number of the information providing station from the current location information, and a determination unit that determines whether the current location deviates from the designated route based on the registration number, wherein the current location deviates from the designated route The obtaining unit obtains the corrected route information from the information providing station of the current position, and the display unit obtains the corrected route information based on the corrected route information. Pedestrian guidance system characterized by displaying a corrected route. 2. The display unit according to claim 1, wherein the display unit displays the corrected route to the destination starting from the current location based on the corrected route information so as to identify the installation location of the next information providing station on the corrected route. The pedestrian route guidance system according to claim 1, wherein: 3. The mobile terminal further includes an acquisition information storage unit that updates and stores the current location information and the route information acquired by the acquisition unit, and the display unit is configured to update the current location information and the route information based on the updated current location information and the route information. 2. The pedestrian guidance system according to claim 1, wherein the route to the current location and the destination is displayed on the screen in characters or images. 4. The pedestrian guidance system according to claim 1, wherein the portable terminal and the information providing station each include an infrared communication unit capable of performing optical communication. 5. A pedestrian guidance method for a system comprising a mobile terminal capable of wireless communication and an information providing station installed at a plurality of predetermined locations and wirelessly communicating with the mobile terminal, wherein the mobile terminal includes Unit, the destination is set, the acquisition unit is used to obtain the current location information and the route information including the designated route from the information providing station to the destination by wireless communication, and the display unit is used to obtain the current location information and The current location and the designated route are displayed on the screen in characters or images based on the route information, the registration number of the information providing station is extracted from the current location information using the extraction unit, and the current location is determined based on the registration number using the determination unit. It is determined whether or not deviated from the designated route, if the current location is deviated from the designated route, the acquisition unit acquires the corrected route information from the information providing station of the current location, The pedestrian guidance method, wherein the display unit displays a corrected route from the current location to the destination based on the corrected route information. 6. A storage medium used in a system including a mobile terminal capable of wireless communication and an information providing station installed at a plurality of predetermined locations and wirelessly communicating with the mobile terminal. Using a display unit, a function of setting a destination, a function of acquiring route information including a current route information and a designated route from an information providing station to a destination using an acquisition unit, and a display unit, Using the function of displaying the current location and the designated route on the screen based on the current location information and the route information in characters or images, using the extraction unit, extracting the registration number of the information providing station from the current location information, and using the determination unit Determining whether the current location is off the designated route based on the registration number; and, if the current location is off the designated route, the obtaining unit provides the information providing step of the current location. The display unit stores a pedestrian guidance program for causing a computer to execute a function of acquiring corrected route information from a location and a function of displaying a corrected route from a current location to a destination based on the corrected route information. Storage media.