JP4636068B2 - Pedestrian route guidance navigation device, pedestrian route guidance navigation system, and pedestrian route guidance navigation program - Google Patents

Description

  The present invention relates to a route guidance navigation device for pedestrians, a route guidance navigation system for pedestrians, and a route guidance navigation program for pedestrians.

  2. Description of the Related Art Conventionally, navigation devices are arranged in a vehicle such as an automobile and based on road map data stored in storage means such as a built-in DVD or CD-ROM, from a set departure point to a destination. The optimum route is searched and displayed on the display means. In this case, when an operator such as a vehicle driver sets the departure point and the destination, the route is set so that the distance from the departure point to the destination is the shortest, or the required time is the shortest. Or to set the route.

  In recent years, with the development of Internet technology, a large amount of data is stored in a web server, and the web server is accessed from the information terminal such as a personal computer, a mobile phone, and a PDA (Personal Digital Assistant) via the Internet. In general, it is common to download necessary data from the data stored in the web server. Therefore, also in the navigation device, by applying such Internet technology, software for searching for map data and a route is stored in a web server, and the operator sets the departure point and the destination from the information terminal. A technique for searching for a route from a departure place to a destination in the web server when being transmitted to a server has been put into practical use. In this case, data of the searched route and data necessary for performing route guidance as a navigation device along the route are returned from the web server to the information terminal, and route guidance is performed by the information terminal. It has come to be.

Thus, the operator can easily use route guidance even while walking by using an inexpensive portable information terminal such as a mobile phone or PDA without using a navigation device. The appropriate route to the destination can be grasped (for example, refer to Patent Documents 1 to 3).
JP 10-319839 A JP 11-337359 A JP 11-344352 A

  However, in the system using the conventional Internet technology, a route searched for by map data or software premised on use in a navigation apparatus is guided. Therefore, in route guidance, the map screen is scrolled around the current location, or the current location moves along the route in the map screen.

  On the other hand, since the information terminal does not have a position detection unit such as a GPS (Global Positioning System) receiver, the current location cannot be displayed on the map screen, and the route guidance is easy to understand. I couldn't. As described above, when the current location is not displayed, an operator as a pedestrian needs to recognize the current location by himself / herself, so it is difficult to grasp the guided route.

  In particular, when an underground shopping street is included in the route from the departure place to the destination, the scenery of the underground shopping street is less changed compared to the ground, and the passages are often formed in a lattice pattern. It is difficult to recognize the current location while walking in the underground shopping area. Also, in ordinary underground shopping streets, there are few landmarks that can be used as landmarks when guiding routes on the ground. Furthermore, even if the information terminal has a GPS receiver, the current location is not displayed on the map screen because radio waves from GPS satellites cannot be received in the underground shopping street.

  The present invention solves the above-mentioned conventional problems, so that an operator as a pedestrian can appropriately recognize the current location even in places where it is difficult to recognize the current location, such as an underground shopping center, An object of the present invention is to provide a pedestrian route guidance navigation device, a pedestrian route guidance navigation system, and a pedestrian route guidance navigation program that can easily grasp the route.

In the pedestrian route guidance navigation device of the present invention, a route search unit that searches for an underground route based on map data, and guide data that guides the searched underground route based on the map data and guide signboard data. Based on the created guidance data, create the transmission data that displays on the display screen the actual guide sign position, the character string of the actual guide sign, and the guidance direction. And a representative facility search unit that searches for a representative facility on the destination side in the underground shopping street, and the route search unit, when there is a representative facility on the destination side, the representative facility A route with a signboard for guiding is preferentially searched .

  In another pedestrian route guidance navigation apparatus according to the present invention, the route search unit further performs a multimodal search of a route from the departure point to the destination included in the route search request.

  In still another pedestrian route guidance navigation apparatus according to the present invention, the guidance data creation unit creates guidance data for guiding the searched route for each segment divided corresponding to each mode. .

  In another route guidance navigation device for pedestrians of the present invention, the route guidance navigation device further includes a data storage unit for storing guidance data for guiding a route, and the transmission data creation unit includes guidance data corresponding to a guidance data acquisition request. Is obtained from the data storage unit to create transmission data.

In still another pedestrian route guidance navigation apparatus of the present invention, when there is a representative facility on the destination side, the representative facility search unit further searches for a representative facility on the departure side in an underground shopping center. The route search unit, if there is no representative facility on the departure side, or if the representative facility on the departure side is different from the representative facility on the destination side, The route with the signage that guides the representative facility is preferentially searched. If the representative facility on the departure side and the representative facility on the destination side are the same, the representative facility on the destination side is selected. Do not preferentially search for routes with guide signs to guide .

In the route guidance navigation system for pedestrians of the present invention, a route search unit that searches for an underground route based on map data, and guide data that guides the searched underground route based on the map data and the guidance signboard data. guidance data creating section that creates, based on the guidance data created, the actual signboard has been mounted position, the actual signboard string, and generates transmission data for displaying a guidance direction on the display screen A transmission data creation unit , and a representative facility search unit that searches for a representative facility on the destination side in the underground shopping street , and the route search unit guides the representative facility when there is a representative facility on the destination side comprises a pedestrian route guidance navigation system route you explore preferentially with signboards that, a display device for displaying the guidance of the searched underground path And a band terminal.

In the route guidance navigation program for pedestrians of the present invention, the computer guides the searched underground route based on the route search unit that searches for the underground route based on the map data and the map data and the guidance signboard data. A guide data creating unit that creates guide data, based on the created guide data, transmission data for displaying a position where an actual guide sign is attached, a character string of the actual guide sign, and a guide direction on a display screen A transmission data creation unit to be created and a route guidance navigation program for pedestrians functioning as a representative facility search unit for searching for a representative facility on the destination side in an underground shopping street , wherein the route search unit is on the side of the destination If there is a representative facility, a route with a signboard for guiding the representative facility is preferentially searched .

  According to the present invention, in the route guidance navigation device for pedestrians, a route search unit that searches for an underground route based on map data, and the searched underground route is guided based on the map data and the guidance signboard data. A guide data creation unit for creating guide data to be transmitted, and a transmission for displaying a position where an actual guide sign is attached, a character string of the actual guide sign, and a guide direction on the display screen based on the created guide data A transmission data creation unit for creating data.

  In this case, even when passing through an underground shopping street where it is difficult to recognize the current location, the operator can appropriately recognize the current location and can easily grasp the route to the destination.

  In another pedestrian route guidance navigation device, the route search unit further includes a representative facility search unit that searches for a representative facility on the destination side in the underground shopping street, and the route search unit includes a representative facility on the destination side. When doing so, a route with a guidance signboard for guiding the representative facility is preferentially searched.

  In this case, since a route with many guide signs is guided, an operator as a pedestrian can proceed along the route without hesitation.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a conceptual diagram showing the configuration of a pedestrian route guidance data distribution system according to an embodiment of the present invention.

  In the figure, reference numeral 10 denotes an information center as a pedestrian route guidance data distribution device, which is a pedestrian route guidance navigation device, an arithmetic means such as a CPU and MPU, a storage means such as a semiconductor memory, a magnetic disk, and an optical disk, It is configured in a computer equipped with an interface. The computer is not a single computer but may be a so-called distributed server in which a plurality of computers are organically coupled. Further, another system may be constructed in the computer. Further, the information center 10 may be one of systems constructed in another computer.

  Reference numeral 31 denotes a portable terminal operated by an operator. Although there are actually a large number of portable terminals, in the present embodiment, the portable terminal 31 is represented for convenience of explanation. In addition, the operator is, for example, a pedestrian, but a person such as a driver, a passenger, etc. of a vehicle such as a passenger car, a truck, a bus, a motorcycle, or a user of public transportation. It may be.

  The portable terminal 31 includes an arithmetic device such as a CPU or MPU, a storage device such as a semiconductor memory, a liquid crystal display, an LED (Light Emitting Diode) display, a display device such as a CRT, a keyboard, a joystick, a cross key, a push button, An input device such as a touch panel, a display control device that controls the display device, and a transmission / reception unit such as a communication interface are provided. The portable terminal 31 is, for example, a cellular phone or a PHS (Personal Handy-Phon System) phone, but any portable information terminal, PDA, Internet connection terminal, small personal computer, wearable computer, game machine, etc. Good.

  Furthermore, the portable terminal 31 may have position detecting means such as a GPS sensor (not shown). Also, for example, in the case of a mobile phone, a portable information terminal, etc., generally, the position of the base station is detected as the current location based on communication with the base station where the mobile phone, the portable information terminal, etc. are located. You may make it do.

  Here, the information center 10 and the portable terminal 31 are connected to each other via a network 27 so as to communicate with each other. The network 27 may be any wired or wireless public communication line network, dedicated communication line network, mobile phone line network, Internet, intranet, LAN (Local Area Network), WAN (Wide Area Network), satellite communication line network, etc. It may be a communication network, or a combination of these as appropriate. Moreover, it may communicate using CS broadcasting or BS broadcasting by a broadcasting satellite, may communicate using terrestrial digital television broadcasting, may communicate using FM multiplex broadcasting, You may communicate using the optical beacon and radio wave beacon currently installed by the roadside.

  The information center 10 generates a transmission data for creating a communication control unit 11 that controls communication with the portable terminal 31 and data to be transmitted to the portable terminal 31 in a form that can be displayed on the display device of the portable terminal 31. Unit 12, map creation unit 13 for creating a map based on map data, map database 14 for storing map data, and guide data creation for creating guidance data for guiding a route based on map data and guidance signboard data 15, a guide sign database 16 that stores guide sign data as data related to a guide sign that guides a route in an underground shopping street, a route search part 17 that searches for a route based on map data or guide sign data, a route for each operator A data storage unit 21 for storing guide data to be guided, guide data storage for storing guide data for each operator Database 22, representative facility search unit 23 for searching for a representative facility based on representative facility data, representative facility database 24 for storing representative facility data in an underground shopping center, POI (Point of point) for searching for a facility, a point, etc. according to set search conditions (Interest) includes a search unit 25 and a POI database 26 for storing data such as facilities and points.

  A pedestrian route guidance data distribution system, which is a pedestrian route guidance navigation system in the present embodiment, is configured by the information center 10 and the portable terminal 31. The operator is a person who is registered in advance in the information center 10 and has a user ID. The portable terminals 31 are also registered.

  Here, in the route guidance data distribution system for pedestrians, the information center 10 searches for a route from a starting point to a destination that can be moved by various moving means such as vehicles, public transportation, and walking. ing. When the route includes an area that passes through an underground shopping street, and when searching for an underground shopping street, the route that has a guide signboard such as a destination guidance signboard that is actually arranged in the underground shopping street is preferentially passed. To find a route. In addition, when guiding the route of the underground shopping street, the place name and name displayed on the guidance signboard are displayed on the display device of the mobile terminal 31 as a screen so that the correspondence between the display screen and the actual underground shopping street can be easily understood. The route is guided.

  That is, in the underground mall, guide signs such as destination guide signs are arranged on the ceiling and walls of the passage to guide the passage. The information center 10 has a guide sign database 16 for storing data related to the guide sign such as the destination guide sign, and when creating route guide data from the departure place to the destination in the underground shopping area, Route guidance data for performing guidance as a mark is created and transmitted to the portable terminal 31.

  By the way, in a device having position detecting means such as a GPS sensor such as a navigation device for a vehicle, the current location of the device itself can be detected, so that a map displayed on the display device as the device itself moves is displayed. It is designed to scroll automatically. In this case, generally, the current location of the device itself is always located at the center of the display screen, and the background map scrolls as the device itself moves.

  However, since the mobile terminal 31 in the present embodiment includes those that do not have position detection means, in this embodiment, the guidance data for guiding a route is a map ( A map corresponding to an enlarged view of an intersection in a normal vehicle navigation device) is created as independent data that can be displayed on the display device of the portable terminal 31. Here, each important point is a point where the guide signboard is disposed. Further, the character string of the guide sign displayed on the display screen is displayed in the same manner as the character string of the actual guide sign. That is, the display form and the arrangement of the character strings are displayed on the screen so as to be the same as the actual guidance signboard. Thereby, the operator easily understands the map displayed for route guidance by comparing the character string of the guidance signboard displayed on the display device of the mobile terminal 31 with the character string of the actual guidance signboard. be able to.

  Further, in the present embodiment, when searching for a route in an underground mall, the route is searched so as to preferentially pass through a route with a guide signboard such as a destination guide signboard actually arranged in the underground mall. Therefore, since the route with many guide signs is guided, the operator can proceed along the route without hesitation.

  Further, the operator may set a place, facility, or the like that is not displayed on the guide sign as a destination and input it to the mobile terminal 31. In this case, the information center 10 extracts a facility (a facility included in the character string of the guidance signboard) located near the input destination and displayed on the guidance signboard from the representative facility database 24, Guide data is created using the extracted facility as a route guidance target.

  Note that the route guidance data distribution system for pedestrians in the present embodiment performs route guidance by searching not only underground shopping streets but also ground routes. That is, the information center 10 has not only a database relating to the underground shopping street but also a database relating to roads, public transportation, station premises, etc., from the departure point to the destination set by the operator and input to the portable terminal 31. Search all routes and create guidance data. In this case, the information center 10 divides the entire route from the starting point to the destination into partial routes, that is, segments, for each moving means or moving mode. When a part of the route in the segment passes through the underground shopping street, as described above, the route is searched so that the route with the guide sign is preferentially passed, and the route is guided using the guide sign. It is designed to create guidance data to do.

  Next, the operation of the route guidance data distribution system for pedestrians having the above configuration will be described. First, an operation in which the information center 10 creates and transmits initial guidance data will be described.

  FIG. 2 is a first diagram showing an example of a guide data display screen created by the information center in the embodiment of the present invention, and FIG. 3 is a guide data display screen created by the information center in the embodiment of the present invention. FIG. 4 is a third diagram showing an example of a guide data display screen created by the information center according to the embodiment of the present invention, and FIG. 5 is a diagram showing the information center according to the embodiment of the present invention. FIG. 6 is a fourth diagram showing an example of a display screen for the created guidance data, FIG. 6 is a fifth diagram showing an example of a display screen for the guidance data created by the information center in the embodiment of the present invention, and FIG. FIG. 6 shows an example of a display screen of guidance data created by the information center in the embodiment of the present invention, and FIG. 8 shows an operation in which the information center creates and transmits the first guidance data in the embodiment of the present invention. It is a flowchart.

  First, the operator operates his / her mobile terminal 31 to set and input a departure place and a destination. Here, a case will be described as an example where the departure place is home and the destination is a building (× Δ building) located in a remote place where it is necessary to transfer to a train. Then, the operator operates his / her mobile terminal 31 to transmit a route search request to the information center 10 via the network 27. The route search request includes the user ID of the operator in addition to the departure point and the destination.

  When the information center 10 receives the route search request (step S101), the information center 10 extracts the departure point, destination, and user ID included in the route search request (step S102). Here, if it is confirmed that the user ID belongs to the operator registered in advance, the route search unit 17 of the information center 10 searches for all routes from the departure point to the destination, that is, the entire route. The search is executed (step S103). If the user ID is not that of an operator registered in advance, the entire route search is not executed.

  Here, in the search of the entire route, a multimodal (Multi Modal) which is a route search in consideration of a plurality of moving means such as public transportation, vehicles, ground walking, underground walking, etc., that is, a mode. A search is performed. Note that in the multimodal search, a normal route search is performed without considering the guide signboard.

  Subsequently, the route search unit 17 divides the searched entire route into partial routes corresponding to the respective modes, that is, segments (step S104). In this case, a series of paths in one mode is set as one segment.

  Subsequently, for each segment, it is determined whether or not the route is an underground walking route (step S105). If the route is an underground walking route, the guidance data creation unit 15 creates guidance data for the underground walking route (step S106). If the route is not an underground walking route, the guidance data creation unit 15 creates guidance data other than the underground as in the case of a normal navigation device (step S107).

  Subsequently, the data storage unit 21 stores the created guide data in the guide data storage database 22 (step S108). The guidance data is stored in a state where it is associated with a user ID for each operator. Then, it is determined whether guide data has been created for all segments included in the entire route (step S109). Here, when the guidance data is not created for all the segments, it is determined whether or not the route is an underground walking route for the next segment included in the entire route, and the guidance data is created.

  When the guide data is created for all segments included in the entire route, the transmission data creation unit 12 creates the first guide data as the transmission data to be transmitted to the portable terminal 31 (step S110). In this case, the first guidance data is created in a form that can be displayed on the display device of the mobile terminal 31. Then, the first guidance data is transmitted by the communication control unit 11 to the portable terminal 31 via the network 27 (step S111).

  Here, the entire route in the first guidance data is displayed as a display screen 32-1 shown in FIG. The display screen 32-1 is vertically long, and when the size of the display device of the portable terminal 31 is small, the entire display screen 32-1 cannot be displayed at once. In this case, scroll display is performed. .

  The display screen 32-1 shows all the routes from the home that is the departure point to the building that is the destination (× Δ building), the name of the moving means or movement mode in each segment, the required time, Information such as estimated departure time and estimated arrival time is included. Here, by placing the cursor on the item posted on the display screen 32-1 and clicking the item, the screen is switched to a display screen for guiding the item in more detail.

  For example, when the cursor is placed on the “Shinkansen” which is the name of public transportation on the display screen 32-1, and clicked, a public transportation display screen 32-2 is displayed as shown in FIG. The display screen 32-2 includes information such as the train number of the Shinkansen, the fee, the estimated departure time, and the estimated arrival time. In addition, by placing the cursor on the “View next guide”, “View previous guide” and “View overall guide” posted on the display screen 32-2, the corresponding guide is displayed. The display screen to be displayed is switched.

  Then, when the cursor is placed and clicked on the “3-minute walk (underground)” indicating an underground walk on the display screen 32-1, as shown in FIG. 4, the display screen 32 of the entire underground route as one segment. -3 is displayed. The display screen 32-3 includes information such as a map of the entire underground shopping area showing the route from the departure point to the destination in the underground route, the length of the route, and the like. When the representative facility exists on the destination side, for example, as shown in FIG. 4, the name of the representative facility on the destination side is displayed as “□□ Station area”. Guide points A to D are shown in the underground route as the segment.

  Here, the guidance point is an important point in the guidance of the underground route, and is a point where an enlarged screen is displayed. In the example shown in FIG. 4, the departure point is indicated as a guide point A, the destination is indicated as a guide point D, and the points with the guidance signboard along the route are indicated as the guide point B and the guide point C. Then, “Enlarge A”, “Enlarge B”, “Enlarge C”, “Enlarge D”, “View next ground guide” and “Entire” posted on the display screen 32-3 By placing the cursor on and clicking on the “view guide”, the display is switched to a display screen displaying the corresponding guide.

  For example, when the user places a cursor on the location of “Enlarge A”, “Enlarge B”, “Enlarge C”, and “Enlarge D” on the display screen 32-3, FIG. Underground route expansion A display screen 32-4a as shown in FIG. 5B, Underground route expansion B display screen 32-4b as shown in FIG. 5B, Underground route expansion as shown in FIG. A display screen 32-4c of C and a display screen 32-4d of the underground route enlargement D as shown in FIG. 6B are displayed.

  Then, when the cursor is placed and clicked on the location “5-minute walk (ground)” indicating walking on the ground on the display screen 32-1, as shown in FIG. 7, the entire walking path on the ground as one segment is displayed. A screen 32-5 is displayed. The display screen 32-5 includes information such as a map of the entire underground shopping area showing the route from the starting point to the destination in the walking route on the ground, the length of the route, and the like. In the route, the starting point in the walking route on the ground is indicated as A, the destination is indicated as C, and the point where the intersection is present is indicated as B. And the places of “Enlarge A”, “Enlarge B”, “Enlarge C”, “View next vehicle guide” and “View overall guide” posted on the display screen 32-5 By placing the cursor on and clicking, the display screen is switched to display the corresponding guidance.

  As the first guidance data, guidance data corresponding to all of the display screens 32-1 to 32-5 as shown in FIGS. 2 to 7 may be transmitted to the portable terminal 31, but the guidance data It is desirable to divide the data into a plurality of pieces and transmit the division including the guidance data corresponding to the display screen 32-1 as the first guidance data. Thereby, since the amount of data to be transmitted is reduced, the transmission time is shortened, and the operator receives the first guidance data within a short time after transmitting the route search request, and displays the display screen 32-1. Etc. can be seen. In this case, as will be described later, the remaining category data is transmitted to the portable terminal 31 when the information center 10 receives the next guidance data acquisition request.

  Next, an operation of creating guide data for an underground walking route will be described.

  FIG. 9 is a flowchart showing an operation of creating guide data for an underground walking route in the embodiment of the present invention.

  Here, the operation in which the guidance data creation unit 15 shown as step S106 in FIG. 8 creates the guidance data for the underground route will be described. In this case, the guidance data creation unit 15 extracts the starting point and the destination in the underground route as a segment (step S201). Note that the departure place and the destination exist for each segment. Then, the representative facility search unit 23 accesses the representative facility database 24 and executes a search for representative facilities at the departure place and the destination (step S202). Here, the representative facility is a famous and large-sized facility that serves as a landmark when guiding an underground route, and the name is written on a guide signboard such as a destination guide signboard arranged in an underground shopping area, It is a facility that represents the destination.

  Subsequently, it is determined whether or not a representative facility exists on the destination side (step S203). If there is no representative facility on the destination side, the guidance data creation unit 15 creates guidance data for guiding the underground route (step S207). In this case, the creation of underground route guidance data is performed based on the result of the search for the entire route shown as step S103 in FIG.

  If the representative facility exists on the destination side, it is determined whether or not the representative facility exists on the departure side (step S204). If there is no representative facility on the departure side, the route search unit 17 performs a route search in consideration of the guidance signboard (step S206). In this case, a route search (guide sign-considering search) is preferentially performed so as to pass a route with a guide sign in which the name of the representative facility on the destination side is described. Thereby, the route search is executed twice for the underground route.

  If there is a representative facility on the departure side, it is determined whether the representative facility on the departure side and the representative facility on the destination side are different (step S205). When the representative facility on the departure side is different from the representative facility on the destination side, the guide signboard consideration search is executed. If the representative facility on the departure side and the representative facility on the destination side are the same, the guide data for the underground route is created without executing the guide signboard consideration search (step S207). ).

  Next, an operation for searching for a route in consideration of the guidance signboard will be described.

  FIG. 10 is a diagram showing data stored in the representative facility database in the embodiment of the present invention, FIG. 11 is a diagram showing an operation for searching for a representative candidate facility in the embodiment of the present invention, and FIG. 12 is an implementation of the present invention. FIG. 13 is a flowchart showing an operation for specifying a representative facility in the embodiment of the present invention.

  Here, the operation of searching (specifying) the representative facility of the departure place and the destination shown as step S202 in FIG. 9 will be described. In this case, first, the position information of the starting point and the destination in the underground route as a segment is extracted (step S301). The position information includes the latitude and longitude of the starting point and destination, and the floor number of the starting point and destination. For example, as a result of searching for the entire route, if the ticket gate of the station where the train gets off is on the second basement floor, the departure point on the underground route is the ticket gate, so the second floor is the floor number of the departure point. Moreover, the exit of the underground shopping mall located near the final destination as the destination in the entire route becomes the destination in the underground route. In this case, normally, the first basement floor is the floor number of the destination.

  Subsequently, the representative facility search unit 23 accesses the representative facility database 24 based on the position information of the departure point and the destination, and searches for a representative facility candidate on the side of the departure point and the destination (step S302). . Here, as shown in FIG. 10, the representative facility database 24 stores data for specifying the representative facility. In this case, the facility ID is an ID for identifying the representative facility, and is defined so that the representative facility existing nationwide can be uniquely identified. That is, the facility ID is a unique ID nationwide. The number of floors indicates how many underground floors the representative facility is located. Further, the representative point is the latitude and longitude of the point representing the representative facility. The grouping area data is a coordinate string that represents a grouping range to be described later.

  In this case, as shown in FIG. 11, the representative facility search unit 23 searches for representative points 42 of the representative facilities existing in a circle with a predetermined radius R centering on the departure point 41a and the destination 41b. Then, the representative facility corresponding to the retrieved representative point 42 is set as a representative facility candidate. In the example shown in FIG. 11, since three representative points 42a to 42c exist in the circle, three representative facility candidates are set.

  Subsequently, it is determined whether there is a representative facility candidate for each of the departure point and the destination (step S303). Then, if there is no representative facility candidate, the process ends. Further, if there is a representative facility candidate, a grouping area determination process is executed (step S304).

  In the present embodiment, the representative facility whose data is stored in the representative facility database 24 corresponds to a landmark indicated in route guidance by a normal navigation device, and serves as a mark when guiding an underground route. It is such a famous and large facility. A grouping area is set around each representative facility. Here, the grouping area is an area for creating guidance data so that the corresponding representative facility is the target point for route guidance when any point in the area is set as the destination.

  And as FIG. 12 shows, each grouping area | region 44a-44c with respect to the representative facilities 43a-43c is set as a triangle, a square, and a hexagon. Note that the grouping area may be a polygon, and is not necessarily a triangle, a quadrangle, or a hexagon. Further, the grouping area data as shown in FIG. 10 is obtained by converting the grouping area as a polygon into a coordinate sequence.

  Here, FIG. 11 and FIG. 12 illustrate an algorithm for the determination process within the grouping area. That is, a procedure for determining whether or not the set starting point or destination exists in the grouping area for the representative facility existing in the vicinity thereof will be described. In this case, it is inefficient to determine whether or not the starting point or destination exists in the grouping area with respect to the grouping area for all the representative facilities. It has become.

  First, as shown in FIG. 11, representative points 42a to 42c of representative facilities existing in a circle with a predetermined radius R centering on the starting point 41a or the destination 41b are respectively searched. Thereby, the representative facilities near the departure point 41a or the destination 41b can be narrowed down as representative facility candidates. Subsequently, as shown in FIG. 12, regarding the representative facilities 43a to 43c narrowed down as representative facility candidates, whether or not there is an origin 41a or a destination 41b included in the corresponding grouping areas 44a to 44c. Judging. Then, representative facility candidates that include the departure place 41a or the destination 41b in the corresponding grouping areas 44a to 44c are determined as representative facilities.

  In the example shown in FIG. 12, the destination 41b is included in the grouping area 44a corresponding to the representative facility 43a. Therefore, the representative facility 43a is set as the representative facility of the destination 41b.

  Next, an operation for transmitting guide data in response to a guide data acquisition request from the mobile terminal 31 will be described.

  FIG. 14 is a flowchart showing an operation of transmitting the next guidance data in the embodiment of the present invention.

  In this case, when the information center 10 receives the next guide data acquisition request from the operator's portable terminal 31 (step S401), the information center 10 extracts the operator's user ID from the guide data acquisition request (step S402). Then, the data storage unit 21 accesses the guide data storage database 22 and acquires the next guide data from the guide data corresponding to the user ID (step S403). Here, the guidance data is stored in association with the user ID for each operator. In addition, a log (record) of guidance data transmitted to the portable terminal 13 is also stored. Therefore, the next guidance data can be specified.

  Then, it is determined whether or not there is the next guidance data (step S404). If there is no guidance data, the process is terminated. If there is next guidance data, the transmission data creation unit 12 creates the next guidance data as transmission data to be transmitted to the mobile terminal 31 (step S405). In this case, the next guidance data is created in a form that can be displayed on the display device of the portable terminal 31. Then, the next guidance data is transmitted to the portable terminal 31 by the communication control unit 11 via the network 27 (step S406).

  Thereby, for example, when the guidance data corresponding to the display screen 32-1 has already been transmitted as the first guidance data, the guidance data corresponding to the display screens 32-3 to 32-5 is transmitted as the next guidance data to the portable terminal. 31 is transmitted and displayed.

  Next, the guidance signboard displayed on the display screens 32-4b, 32-4c, etc. will be described.

  FIG. 15 is a diagram showing data stored in the guidance signboard database in the embodiment of the present invention, and FIG. 16 is a first example showing a display screen of the guidance signboard in the underground mall created by the information center in the embodiment of the present invention. FIG. 17 is a diagram showing the data of the guide signboard in the underground shopping area displayed in FIG. 16 in the embodiment of the present invention. FIG. 18 is a diagram showing the contents of the data of the guide signboard in the underground shopping mall in the embodiment of the present invention. FIG. 19 is a second diagram illustrating an example of a display screen of a guide signboard in an underground mall created by the information center according to the embodiment of the present invention, and FIG. 20 is a diagram of the underground mall displayed in FIG. 19 according to the embodiment of the present invention. The figure which shows the data of a guidance signboard, FIG. 21 shows the example of the display screen of the guidance signboard in the underground shopping area which the information center in embodiment of this invention produced. 3 of the drawing, FIG. 22 is a diagram showing data signboard in underground city displayed in FIG. 21 in the embodiment of the present invention.

  Here, as shown in FIG. 15, data for displaying the guidance signboard is stored in the guidance signboard database 16. In this case, the ID is an ID for identifying the guidance signboard, and is determined so that the guidance signboard can be uniquely identified. That is, the ID is a unique ID. Also, the signboard position identifies whether it is attached to the ceiling (left, middle, right) or attached to the left and right walls. Furthermore, the signboard type identifies facility guidance or exit guidance. The signboard name is a character string indicating the name of the signboard itself displayed on the signboard. The arrow direction is the direction of guidance. Furthermore, the guidance name array is a list of names that are displayed and guided on the signboard. The facility ID list is a list of facility IDs displayed and guided on the signboard. The guidance direction connection link ID is a link ID connected in the guidance direction. The link ID will be described later.

  In the example shown in FIG. 16, the guidance signboard 53 is displayed in the enlarged screen 51 of the underground route. In this case, the character string of the guidance signboard 53 is displayed in the same manner as the character string of the actual guidance signboard. Note that an arrow 52 indicates a direction to proceed at a position where the guide signboard 53 is attached in the underground route. Here, the data corresponding to the guide sign 53 is as shown in FIG. In the data shown in FIG. 17, the meanings of the numbers shown as the signboard position, the signboard type, and the arrow direction are shown in FIG.

  FIG. 19 shows another enlarged screen 54. In this case, the actual signboard is the one displayed on the ceiling at the intersection of the passage, and is composed of the three information signboards 55a, 55b and 55c on the enlarged screen 54. The arrow 52 is the same as the example shown in FIG. FIG. 20 shows data corresponding to the guidance signboard 55a. Note that data corresponding to the guide signs 55b and 55c is omitted. Further, in the data shown in FIG. 20, the signboard position, the signboard type, and the meaning of the numbers shown as the arrow directions are shown in FIG. 18 described above.

  FIG. 21 shows still another enlarged screen 56. In this case, the actual signboard is the one displayed on the wall of the passage, and consists of the two signboards 57a and 57b on the enlarged screen 56. The arrow 52 is the same as the example shown in FIG. FIG. 22 shows data corresponding to the guide signboard 57b. Note that data corresponding to the guidance signboard 57a is omitted. In the data shown in FIG. 22, the meanings of the numbers shown as the signboard position, the signboard type, and the arrow direction are shown in FIG.

  Thus, in the guidance signboard displayed on the display screens 32-4b, 32-4c, etc., the character string is displayed in the same manner as the character string of the actual guidance signboard. Therefore, the operator can easily understand the map displayed for route guidance by comparing the character string of the guidance signboard displayed on the display device of the mobile terminal 31 with the character string of the actual guidance signboard. Can do.

  Next, the operation of the guidance signboard consideration search performed by the route search unit 17 will be described.

  FIG. 23 is a diagram showing underground link data for searching for an underground route stored in the map database in the embodiment of the present invention, and FIG. 24 shows a road network used for the underground route search in the embodiment of the present invention. FIG. 25 is a first diagram showing the results of the underground route search in the embodiment of the present invention, FIG. 26 is a second diagram showing the results of the underground route search in the embodiment of the present invention, and FIG. FIG. 28 is a second diagram showing an underground route search process according to the embodiment of the present invention, and FIG. 29 is an embodiment of the present invention. FIG. 30 is a fourth diagram showing the underground route search process in the embodiment of the present invention, and FIG. 31 is the searched underground route in the embodiment of the present invention. Guide point To figures, FIG. 32 is a diagram showing the underground and ground of the road network in the embodiment of the present invention.

  Here, as shown in FIG. 23, the map database 14 stores underground link data for searching for underground routes. By the way, the map database 14 includes a lot of road data regarding the roads on the ground, and each road is delimited by the intersection of three or more roads and the point where the road type is changed. It consists of a number of structural units called links. Similarly, the underground route is composed of a large number of structural units called links, and data relating to the links is stored as underground link data.

  The map database 14 stores data such as coordinates relating to a large number of nodes regarding roads on the ground. In this case, the node has an interval enough to understand the road shape (for example, an interval of several tens of meters, but a shorter interval when the road is curved, and a longer interval when the road is straight. It is set on the road. As for the underground route, since the road is often straight, the node is usually a point such as an intersection that divides a link or an entrance to an underground shopping street.

  In the underground link data shown in FIG. 23, the link ID is an ID for specifying each link, and is defined so that a link existing nationwide can be specified uniquely. That is, the link ID is a unique ID nationwide. The link length is the length of each link. Furthermore, the link shape data is a coordinate sequence representing the shape of the link. The node data is information on the position of each node and connection links that are links connected to the nodes. The signboard ID list (forward direction) and the signboard ID list (reverse direction) are ID lists of signboards arranged at the nodes.

  Here, based on the example of the underground shopping area shown in FIG. 12, the operation when searching for an underground route will be described. In this case, the road network of the underground shopping street is as shown in FIG. Here, the frames surrounding the alphabets A to L indicate nodes, respectively, where node A is a starting point in an underground route as a segment, and node L is a destination in an underground route as a segment. In addition, it is assumed that the nodes C and H are nodes in which a guide signboard for guiding to the XX department store which is a representative facility on the destination side is arranged. A straight line connecting each node indicates a link, and a number in the link indicates a search cost of the corresponding link.

  Then, based on the road network shown in FIG. 24, when a normal route search, that is, a search not considering the guide signboard, is executed, the result is as shown in FIG. In FIG. 25, the number shown beside each node is the movement cost. The travel cost is the total of the search costs for links included in the route from the node A as the departure point to each node. A link indicated by a dotted line is a link that has not been used for calculating the movement cost. Here, it can be seen that the route having the lowest movement cost to the destination node L is the route indicated by the arrow in FIG.

  On the other hand, when a guide sign considering search, that is, a search considering the guide sign, is executed based on the road network shown in FIG. 24, the result is as shown in FIG. In this case, the search cost is subtracted by 10 [%] for the link corresponding to the direction indicated by the guidance signboard. Therefore, the route with the lowest travel cost to the destination node L is a route indicated by an arrow in FIG. 26, that is, a guide signboard for guiding to the destination department's representative facility XX department store. It can be seen that the route passes through the nodes C and H.

  In addition, the route search part 17 performs the said guidance signboard consideration search according to a process as shown in FIGS. In FIG. 27 to FIG. 30, nodes whose bold frames surround the alphabets A to L are nodes whose costs are fixed, and other nodes are nodes whose costs are pending. The link indicated by the solid line is a link used for the calculation of the movement cost, and the link indicated by a dotted line is a link that is not used for the calculation of the movement cost.

  Based on the route searched by executing such a guidance signboard consideration search, guidance points are extracted as shown in FIG. In FIG. 31, circles surrounding alphabets A to E indicate guide points, respectively, where guide point A is a starting point in an underground route as a segment, and guide point E is a destination in an underground route as a segment. In addition, guide points B to D are intersections, and guide points B and C therein are points where guide signboards for guiding to XX department stores that are representative facilities on the destination side are arranged. The guide points A to E are guided on an enlarged screen as shown in FIGS. 5 (a) and 5 (b) and FIGS. 6 (a) and 6 (b).

  In addition, since the underground and ground road networks are configured as shown in FIG. 32, for example, the route search unit 17 considers the cost at the connection position with the ground road when searching for the underground route. It may be.

  Thus, in this embodiment, when searching for an underground shopping center route, the information center 10 preferentially passes a route with a guide signboard such as a destination guide signboard that is actually arranged in the underground shopping center. Search for a route.

  Therefore, since a route with many guide signs is guided, an operator as a pedestrian can proceed along the route without hesitation.

  In addition, when guiding the route of the underground shopping street, the place name and name displayed on the guidance signboard are displayed on the display device of the mobile terminal 31 as a screen so that the correspondence between the display screen and the actual underground shopping street can be easily understood. The route is guided.

  Therefore, even when passing through an underground mall where it is difficult to recognize the current location, the operator can appropriately recognize the current location, and can easily grasp the route to the destination.

  Further, the character string of the guide sign displayed on the display screen is displayed in the same manner as the character string of the actual guide sign. Thereby, the operator easily understands the map displayed for route guidance by comparing the character string of the guidance signboard displayed on the display device of the mobile terminal 31 with the character string of the actual guidance signboard. be able to.

  Furthermore, if there is a representative facility that is a famous and large-scale facility that serves as a landmark when guiding the underground route to the destination side, the route with the information signboard that describes the name of the representative facility is given priority. A route that passes through is searched. Therefore, the operator can easily reach the destination.

The embodiment described above can also be configured as follows. That is, the route guidance data distribution device for pedestrians
(A) An underground shopping center database that stores the receiving means for receiving the starting and ending points of the underground shopping street passage that the user desires for route guidance from the terminal, the underground shopping street data, and the underground shopping guide sign data installed in the underground shopping street,
(B) route search means for searching for a route from the start point to the end point based on the underground shopping center database;
(C) route guidance data creating means for creating route guidance data including map data indicating a point where an underground shopping street signboard is located on the searched route;
(D) transmission means for transmitting the generated route guidance data to the terminal;
It is set as the structure provided with.

  Here, the receiving means corresponds to the communication control unit 11 shown in FIG. In addition to the case where the start point and end point of the underground shopping street are directly transmitted from the terminal, the following cases may be considered. That is, when the information transmitted from the terminal is not the underground shopping area but the user's departure and destination information, the route from the departure place to the destination is searched, and the underground shopping street part included in the searched route It is also preferable to extract the start point and end point of (underground street start point end point extraction means). In addition, the underground shopping center database is a combination of the map database 14 and the guidance signboard database 16 shown in FIG. It corresponds to the transmission data creation unit 12 and the communication control unit 11, respectively.

Furthermore, in the route guidance data distribution device for pedestrians,
(E) It is also preferable that the route guidance data creation means creates guidance data using a destination name displayed on an underground shopping area signboard installed in the underground shopping area. That is, as the guidance data displayed on the other screen, the guidance data is created using the same character string as the destination character string displayed on the actual guidance signboard. Moreover, you may make it produce the image which designed the actual guidance signboard as guidance data displayed on the screen of a terminal.

In the pedestrian route guidance data distribution device,
(F) further comprising representative facility specifying means for specifying a facility corresponding to the name of the destination display displayed on the underground shopping street signboard, located within a predetermined distance range from the end point of the received underground shopping street,
(G) It is also preferable that the guidance data creation means creates guidance data with the identified facility as a guidance target location.

  This is provided with a facility (here, such a facility is referred to as a representative facility) displayed as a destination on a guide sign in the underground mall as a database (corresponding to the representative facility database 24 in FIG. 1), and an underground mall received from a terminal. A representative facility located near the end point of the passage (within a predetermined range from the end point) is extracted and specified from the representative facility database 24, and the specified representative facility is set as a guidance target. By configuring in this way, the same name as the name of the representative facility displayed on the guidance signboard is set as the target point of the route guidance, so it is possible to compare the route guidance displayed on the terminal with the actual guidance signboard. As a result, the user can more easily understand route guidance.

Also, as a pedestrian route guidance data distribution device that searches and guides routes from general departure places to destinations including the ground as well as underground streets,
(H) a map database for storing map data such as roads, public transportation, and station premises,
(I) An underground shopping center base that stores underground passage data and underground shopping guide sign data installed in the underground shopping street,
(J) receiving means for receiving the user's departure and destination from the terminal;
(K) route search means for searching for a route from the departure place to the destination based on the map database and the underground shopping center database;
(L) route guidance data creating means for creating route guidance data based on the searched route;
Transmission means for transmitting the created route guidance data to the terminal,
(M) When a route that passes through an underground shopping street is included in the searched route, the route guidance data creation means is displayed on an underground shopping guide sign existing on the searched route based on the underground shopping street database. It is also preferable that the route guidance data is created using the name of the destination.

  In the above configuration, “when the searched route includes a route passing through the underground shopping street” is a multimodal search (route search considering a plurality of moving means or movement modes) in the above-described embodiment. It means extracting the part of the underground street route by walking from the searched route. After the portion of the underground shopping street route is extracted, the characteristics are the same as those described in the above (a) to (g).

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

It is a conceptual diagram which shows the structure of the route guidance data delivery system for pedestrians in embodiment of this invention. It is a 1st figure which shows the example of the display screen of the guidance data which the information center in embodiment of this invention produced. It is a 2nd figure which shows the example of the display screen of the guidance data which the information center in embodiment of this invention produced. It is a 3rd figure which shows the example of the display screen of the guidance data which the information center in embodiment of this invention produced. It is a 4th figure which shows the example of the display screen of the guidance data which the information center in embodiment of this invention produced. It is a 5th figure which shows the example of the display screen of the guidance data which the information center in embodiment of this invention produced. It is a 6th figure which shows the example of the display screen of the guidance data which the information center in embodiment of this invention produced. It is a flowchart which shows the operation | movement which the information center in embodiment of this invention produces and transmits the first guidance data. It is a flowchart which shows the operation | movement which produces the guidance data of the underground walking route in embodiment of this invention. It is a figure which shows the data stored in the representative facility database in embodiment of this invention. It is a figure which shows the operation | movement which searches the representative candidate institution in embodiment of this invention. It is a figure which shows the operation | movement which specifies the representative institution in embodiment of this invention. It is a flowchart which shows the operation | movement which specifies the representative facility in embodiment of this invention. It is a flowchart which shows the operation | movement which transmits the next guidance data in embodiment of this invention. It is a figure which shows the data stored in the guidance signboard database in embodiment of this invention. It is a 1st figure which shows the example of the display screen of the guidance signboard in the underground shopping area which the information center in embodiment of this invention produced. It is a figure which shows the data of the guidance signboard in the underground shopping area displayed in FIG. 16 in embodiment of this invention. It is a figure which shows the content of the data of the guidance signboard in the underground shopping area in embodiment of this invention. It is a 2nd figure which shows the example of the display screen of the guidance signboard in the underground shopping area which the information center in embodiment of this invention produced. It is a figure which shows the data of the guidance signboard in the underground shopping area displayed in FIG. 19 in embodiment of this invention. It is a 3rd figure which shows the example of the display screen of the guidance signboard in the underground shopping area which the information center in embodiment of this invention produced. It is a figure which shows the data of the guidance signboard in the underground shopping area displayed in FIG. 21 in embodiment of this invention. It is a figure which shows the underground link data for searching the underground route stored in the map database in embodiment of this invention. It is a figure which shows the road network used for the underground route search in embodiment of this invention. It is a 1st figure which shows the result of the underground route search in embodiment of this invention. It is a 2nd figure which shows the result of the underground route search in embodiment of this invention. It is a 1st figure which shows the process of the underground route search in embodiment of this invention. It is a 2nd figure which shows the process of the underground route search in embodiment of this invention. It is a 3rd figure which shows the process of the underground route search in embodiment of this invention. It is a 4th figure which shows the process of the underground route search in embodiment of this invention. It is a figure which shows the guide point of the searched underground route in embodiment of this invention. It is a figure which shows the underground and ground road network in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Information center 12 Transmission data creation part 15 Guidance data creation part 17 Route search part 21 Data storage part 23 Representative facility search part 31 Portable terminal 32-1, 32-2, 32-3, 32-4a, 32-4b, 32 -4c, 32-4d, 32-5 Display screens 43a, 43b, 43c Representative facilities 53, 55a, 55b, 55c, 57a, 57b

Claims (7)

(A) a route search unit that searches for an underground route based on map data;
(B) a guidance data creation unit for creating guidance data for guiding the searched underground route based on the map data and the guidance signboard data;
(C) a transmission data creation unit for creating transmission data for displaying a position where an actual guide sign is attached, a character string of the actual guide sign, and a guide direction on the display screen based on the created guide data; ,
(D) having a representative facility search unit for searching for a representative facility on the destination side in the underground shopping area,
(E) When there is a representative facility on the destination side, the route search unit preferentially searches for a route with a guidance signboard that guides the representative facility, and provides route guidance navigation for pedestrians apparatus.   The pedestrian route guidance navigation device according to claim 1, wherein the route search unit executes a multimodal search of a route from a departure place to a destination included in a route search request.   The pedestrian route guidance navigation device according to claim 2, wherein the guidance data creation unit creates guidance data for guiding a route searched for each segment divided in accordance with each mode. A data storage unit that stores guide data for guiding a route, wherein the transmission data creation unit creates the transmission data by obtaining guide data corresponding to a guide data acquisition request from the data storage unit. The route guidance navigation device for pedestrians according to any one of 3 . When there is a representative facility on the destination side, the representative facility search unit further searches for a representative facility on the departure side in the underground shopping street, and the route search unit does not have a representative facility on the departure side. Or if the representative facility on the departure side is different from the representative facility on the destination side, the route with the guidance signboard for guiding the representative facility on the destination side is preferentially searched , claim not perform preferential search of the when the representative property side representative facilities and destination side of the departure point are identical with signboard for guiding a representative facility side of the route to the destination 1 The route guidance navigation device for pedestrians described in 1. (A) the route searching unit for searching the underground route based on the map data, based on said map data and guidance signboard data, guidance data creating section that creates guidance data for guiding the searched underground path, created Based on the guidance data, the transmission data creation unit that creates the transmission data for displaying the position where the actual guidance sign is attached, the character string of the actual guidance sign, and the guidance direction on the display screen , and the purpose in the underground mall A representative facility search unit that searches for a representative facility on the ground side, and when the representative facility on the destination side exists, the route search unit preferentially selects a route having a guide signboard that guides the representative facility. and pedestrian route guidance navigation device you search,
(B) A route guidance navigation system for a pedestrian having a portable terminal provided with a display device that displays guidance for the searched underground route. (A) computer
(B) a route search unit that searches for an underground route based on map data;
(C) a guidance data creation unit for creating guidance data for guiding the searched underground route based on the map data and the guidance signboard data ;
(D) a transmission data creation unit that creates transmission data for displaying a position where an actual guide sign is attached, a character string of the actual guide sign, and a guide direction on the display screen based on the created guide data ; And
(E) a pedestrian route guidance navigation program that functions as a representative facility search unit for searching for a representative facility on the destination side in an underground shopping street ,
(F) A route guidance navigation program for pedestrians that preferentially searches for a route with a guidance signboard for guiding the representative facility when the representative facility on the destination side exists .

Images