JP2013002898A - Guide information generating device, guide information generating method and guide information generating program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guide an arrival point corresponding to a rout to go to a destination point.SOLUTION: The guide information generating device generates a piece of guide information showing a rout which leads to the arrival point by performing the steps of: obtaining a piece of destination point information from a search server, which represents a telephone number and a name associated with a destination point which is searched as a point satisfying the search conditions of the destination point in a first location database which stores telephone numbers and names while associating each other with respect to the locations; and identifying a point, in which a telephone number entirely coincides with the telephone number associated with the destination point represented by the destination point information and at least a part of a name coincides with a name associated with the destination point represented by the destination point information in a second location database storing the telephone numbers and the names and the locations while associating with each other, as an arrival point.

Description

  The present invention relates to a guide information generating device, a guide information generating method, and a guide information generating program.

  There has been proposed a technique for specifying a point to be guided by a navigation device using a search result by a search provider on the Internet. In Patent Document 1, when a point that matches the search keyword received from the user cannot be searched in the navigation device, the search provider acquires another search keyword related to the search keyword, and matches the other search keyword. A technique for a navigation device to search again for a point to perform is disclosed. The database used for search by a search provider on the Internet stores an enormous amount of data than the database provided in the navigation device. Therefore, by using the search provider, a point that cannot be searched by the navigation device alone can be searched. it can.

JP 2010-256163 A

However, the search result of the search provider may not be suitable as information used by the navigation device. In other words, many points that are not connected to the road are also registered in the search provider's database, so when the destination is guided based on the search provider's search results, the route to the destination cannot be searched, There was a problem that a route to a point on a nearby road that was not suitable for arriving the vehicle was guided.
The present invention has been made in view of the above-described problems, and an object thereof is to guide an arrival point suitable for going to a destination point.

  In order to achieve the above object, in the present invention, the destination point information acquisition means is searched as a point that matches the destination search condition in the first point database in which the telephone number and the name are recorded in association with each other. The destination point information indicating the telephone number and name associated with the destination point is acquired. The arrival point specifying means corresponds to a telephone number that corresponds to the telephone number associated with the destination point indicated by the destination point information in the second point database in which the telephone number, name, and location are recorded in association with each other. A point associated with a name associated with a name associated with the destination point indicated by the destination point information and at least a part of the name is identified as an arrival point. That is, the destination point indicated by the destination point information and the point where all the telephone numbers match and at least a part of the name match are specified as the arrival point. Then, the guidance information generating means generates guidance information indicating a route to the arrival point.

  In the above configuration, the destination point searched in the first point database and the arrival point where all of the telephone numbers match and at least a part of the name match are searched in the second point database, and the route to the arrival point Can be guided. Here, it can be estimated that the arrival point where the destination point and the telephone number all match is not a facility independent of the facility corresponding to the destination point, but the point corresponding to the attached facility of the facility corresponding to the destination point. This is because there is a high possibility that an individual telephone number is assigned if the facility is independent from the facility corresponding to the destination point. The arrival point specifying means generates a component character string (component character) obtained by dividing the name associated with the destination point and the name associated with the arrival point in units of words or a predetermined number of characters. By determining whether or not the names match, it is determined whether or not at least a part of the names associated with the destination point and the arrival point match. In general, a name associated with a point is formed by combining a unique name, an attribute, a position, a direction, and the like of a facility corresponding to the point, and a name associated with a point corresponding to a certain facility, There is a high possibility that the unique name portion matches the name associated with the point corresponding to the facility attached to the facility. Therefore, when at least a part of the name associated with the destination point and the arrival point matches, it can be estimated that the arrival point is a point corresponding to the attached facility of the facility corresponding to the destination point. In this way, since the point corresponding to the attached facility of the facility corresponding to the destination point can be specified as the arrival point, the user first arrives at the arrival point connected to the road and then visits the facility with the arrival point attached. You can go to the corresponding destination. If a point that is suitable as a guide point is recorded in the second point database, even if a point that is not suitable as a guide point in the first point database is searched as a destination point, a point that is appropriate as a point of arrival is guided as a destination point. it can. As described above, if a point suitable for guiding is recorded in the second point database, the first point database in which a point specialized for guiding as a destination point is recorded is not necessary and can be used. The width of the first point database can be expanded. That is, the point recorded in the first point database does not necessarily have to be verified to be suitable as a guide point.

  On the other hand, the point where the point information is recorded in the second point database is preferably a point suitable as a point to be guided, for example, a point connected to a road. Here, the point where the road is connected may be a road where the vehicle can travel, a road where a bicycle can travel, or a sidewalk where a pedestrian can walk. It may be a road that is a combination of these. That is, when guidance is provided in the vehicle, the arrival point to which the roadway is connected may be specified so that the vehicle can arrive at the arrival point. Moreover, what is necessary is just to specify the arrival point to which the sidewalk was connected so that a pedestrian can arrive at an arrival point, when making it guide to a pedestrian. That is, it is desirable to specify a point where a road that can be moved by the moving means to be guided is connected as an arrival point. In addition, the point where information is recorded in the second point database is preferably a point corresponding to a facility suitable for arrival by the moving means to be guided. For example, when a vehicle arrives at an arrival point, it is desirable that the vehicle can enter a facility corresponding to the arrival point, and that a space for parking in the facility is provided. That is, when performing guidance for a moving means that needs to park at an arrival point such as a vehicle, it is desirable to guide the point corresponding to the parking facility as the arrival point. If you prepare a second point database that records information about points corresponding to facilities suitable for arriving by the guidance target moving means, the route to the arrival point suitable for arriving by the guidance target moving means can be obtained. You can be guided.

  As described above, the point recorded in the first point database does not necessarily have to be verified as a guide point, so the first point database can be used for a specific means of transportation (the road to which the point is connected). The database does not need to be specialized for a transportation means), and for example, a general-purpose search database managed by a search server on the Internet can be used as the first point database. By using the first point database on the Internet, a destination point corresponding to the search condition can be searched from a huge number of points. In addition, since it is not necessary to register the point after the connection with the road is confirmed in the first point database, the point is registered by an unspecified user (including a user who does not have road information) in the first point database. It can be a shared database.

  The arrival point specifying means may specify the arrival point based on at least the name and the telephone number, and may specify the arrival point based on other information associated with the point. For example, the arrival point may be specified in consideration of whether the address or the postal code associated with the point matches. In addition, if the entire phone number and part of the name match, the character code of the character corresponding to the entire phone number or part of the name is not limited to match. May be substantially synonymous. For example, even if the uppercase and lowercase letters of the alphabet are different, they may match, even if the hiragana and katakana are different, they may match, and even if the kanji and hiragana are in a convertible relationship, they match. It is good. In addition, when at least a part of the names associated with the destination point and the arrival point are matched, when a part of the names associated with the destination point and the arrival point are matched, the names are associated with the destination point. If all of the names associated with the arrival point match some of the names associated with the destination, and if all of the names associated with the destination coincide with all of the names associated with the arrival point And the case where the names associated with the arrival points all match.

  The guidance information generation device of the present invention may be a single device or a plurality of devices. For example, all the units constituting the guidance information generating device may be provided in a vehicle-mounted device such as a navigation device. That is, the vehicle-mounted device may include a recording medium that records the first point database and the second point database, and the vehicle-mounted device may sequentially perform searches using the first point database and the second point database. Since the first point database and the second point database can be individually managed in the vehicle-mounted device, for example, the update frequency of the first point database and the update frequency of the second point database can be made different. For example, the first point database may have an update frequency corresponding to a change in search tendency on the Internet or the like, and the second point database may have an update frequency according to the frequency of road construction. Further, as described above, the search server may perform a search using the first point database, and the vehicle-mounted device may perform a search using the second point database to generate the guide information. Further, a guidance server may be interposed between the search server and the vehicle-mounted device. That is, the guide server may generate guide information based on the destination point information obtained by searching the first point database by the search server, and transmit the guide information to the vehicle-mounted device. Even in this way, the route to the arrival point can be guided based on the guidance information in the vehicle-mounted device. Furthermore, each means which comprises a guidance information generation apparatus may be provided with disperse | distributing to an onboard equipment and a guidance server. For example, the guidance server may identify an arrival point, and the vehicle-mounted device may generate guidance information indicating a route to the arrival point.

  In the second point database, the arrival point specifying means is associated with a phone number that matches all the phone numbers associated with the destination point, and a name that at least partially matches the name associated with the destination point. A point associated with a position within a predetermined distance from the position of the destination point may be specified as the arrival point. Thereby, it can be guaranteed that the destination point and the arrival point are within a predetermined distance. For example, when the guidance information generation device generates guidance information for guiding in a vehicle, it is assumed that the user goes to the destination point on foot from a parking lot or the like as the arrival point. It is desirable that the arrival point and the arrival point are within a predetermined distance corresponding to the distance that can be walked within a predetermined period. Further, by specifying an arrival point within a predetermined distance from the destination point, it is possible to prevent a point unrelated to the destination point from being erroneously specified as the arrival point.

Further, the guidance information generating means may generate guidance information for guiding only the route to the arrival point, or may generate guidance information for guiding the position of the destination point together with the route to the arrival point. Thereby, the user can recognize the positional relationship from the arrival point to the destination point. Further, by guiding the position of the destination point, it can be recognized that the destination point as the user intended is being guided. For example, if only the route to the arrival point corresponding to the parking lot attached to the facility corresponding to the destination point is guided, the position of the arrival point as the end point of the route can be recognized, but the arrival point is the user's intention. There may be cases where it is felt suspicious whether or not it is intended to go to a destination point on the street. On the other hand, if the location of the destination point is also guided, it can be recognized that the route to the parking lot for reaching the intended destination point is guided.
Further, the guide information generating means may generate guide information indicating the route to the arrival point by display, or may generate guide information indicating the route to the arrival point by voice.

  Note that, as in the present invention, a method of generating guidance information indicating a route to an arrival point specified based on destination point information can also be applied as a method or program for performing this process. In addition, the guidance information generating device, method, and program to which the method of the present invention is applied may be realized as a single device or as a plurality of devices. Further, some changes may be made as appropriate, such as a part of software and a part of hardware. Furthermore, the present invention is also realized as a recording medium for a program for controlling the guidance information generating device. Of course, the software recording medium may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium to be developed in the future.

It is a block diagram which shows a destination point guidance system. (2A) and (2B) are flowcharts of destination point guidance processing. It is a figure which shows the destination guidance screen.

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of destination point guidance system:
(2) Destination guidance processing:
(3) Other embodiments:

(1) Configuration of destination point guidance system:
First, the hardware configuration of the destination point guidance system 1 will be described. FIG. 1 is a block diagram showing a configuration of a destination point guidance system 1 according to the present embodiment. The destination point guidance system 1 includes a guidance server 10, a search server 20, and a navigation device 30 as a vehicle-mounted device. The navigation device 30 is provided in a vehicle (not shown), and the navigation device 30 provided in the vehicle and the guidance server 10 communicate bidirectionally. Although not shown, a plurality of pairs of vehicles and navigation devices 30 may exist. The guidance server 10 and the search server 20 communicate bidirectionally. In the present embodiment, the moving means to be guided is a vehicle.

  The guidance server 10, the search server 20, and the navigation device 30 include control units 11, 21, 31, communication units 12, 22, 32, and recording media 13, 23, 33, respectively. The control units 11, 21, and 31 are each provided with a CPU, ROM, and RAM (not shown), and program data recorded in the ROM and recording media 13, 23, and 33 are expanded on the RAM and various programs are executed. The communication unit 12 of the guidance server 10 and the communication unit 32 of the navigation device 30 realize bidirectional communication by wireless communication means using, for example, radio waves. The communication unit 32 may be provided in the navigation device 30 or may be configured by another device such as a mobile phone that communicates with the navigation device 30. The communication unit 12 of the guidance server 10 and the communication unit 22 of the search server 20 realize bidirectional communication via the Internet, for example.

  Next, the software configuration of the guidance server 10 will be described. As shown in FIG. 1, the control unit 11 of the guidance server 10 executes a position information providing program 110. The location information providing program 110 includes a first search condition information transmission unit 110a, a destination point information acquisition unit 110b, an arrival point identification unit 110c, and a location information transmission unit 110d.

  The first search condition information transmission unit 110a is a module for causing the control unit 11 to execute a function of transmitting search condition information CI indicating a search condition for a destination to the search server 20. That is, when the search condition information CI is received from the navigation device 30 as shown in FIG. 1 by the function of the first search condition information transmission unit 110a, the control unit 11 transmits the search condition information CI to the search server 20. The destination search condition is one or more search keywords received from the user by the navigation device 30.

  The destination point information acquisition unit 110b includes a telephone number associated with a destination point searched as a point that matches a destination search condition in the first point database in which a telephone number and a name are recorded in association with each other. This is a module for causing the control unit 11 to execute a function of acquiring destination point information indicating a name. Specifically, the control unit 11 uses the function of the destination point information acquisition unit 110b to obtain destination point information indicating the telephone number and name associated with the destination point that is the point searched by the search server 20 based on the search condition. Obtained from the search server 20. That is, the control unit 11 receives the destination point information DI from the search server 20 as a response to the search condition information CI as shown in FIG. 1 by the function of the destination point information acquisition unit 110b. This destination point information DI indicates at least the telephone number, name, and position associated with the destination point searched by the search server 20 based on the search condition indicated by the search condition information CI.

  The arrival point specifying unit 110c, in the arrival point DB (second point database) 13a in which a telephone number, a name, and a position are recorded in association with each other, the telephone number associated with the destination point indicated by the destination point information DI From the position of the destination point indicated by the destination point information DI, the phone numbers that match all are associated, the name that corresponds to the destination point indicated by the destination point information is associated with the name that matches at least partly. It is a module for causing the control unit 11 to execute a function of specifying a point associated with a position within a predetermined distance as an arrival point. Here, the arrival point DB 13a is a database in which at least a name, a telephone number, and a position associated with each point are recorded in association with each other for each point to which the road is connected as a suitable point for guidance. The point where information is recorded in the arrival point DB is a point connected to a road on which the vehicle can travel, and is suitable for the arrival of the vehicle, that is, the vehicle can enter the inside from an external road. Furthermore, it is a point in the facility where a space for parking inside is provided. In the present embodiment, information related to points in the parking lot and the getting-off place is recorded in the arrival point DB. In the present embodiment, the predetermined distance is a distance (1 km) that can be walked in 15 minutes when walking at a standard speed (4 km / hour).

  By the function of the arrival point specifying unit 110c, the control unit 11 refers to the arrival point DB 13a so that a telephone number corresponding to the destination point indicated by the destination point information DI is associated with a telephone number that matches all the destination numbers. A point that is associated with a name at least partially matching the name associated with the destination point indicated by the point information and that is associated with a position within a predetermined distance from the position of the destination point indicated by the destination point information DI. Search and specify the searched point as an arrival point. That is, the destination point and the arrival point have the same telephone number, a part of the name, and a position within a predetermined distance.

  The position information transmission unit 110d is a module that causes the control unit 11 to execute a function of generating position information PI indicating the position of the destination point and the position of the arrival point and transmitting the position information PI to the navigation device 30. That is, by the function of the position information transmission unit 110d, the control unit 11 acquires the position of the destination point indicated by the destination point information DI and the position associated with the arrival point in the arrival point DB, and indicates these positions. The position information PI is generated and transmitted to the navigation device 30.

  Next, the software configuration of the search server 20 will be described. As shown in FIG. 1, the control unit 21 of the search server 20 executes a search program 210. The search program 210 includes a destination point information transmission unit 210a. The control unit 21 receives the search condition information CI from the guidance server 10 by the function of the destination point information transmitting unit 210a, and searches for a destination point that matches the search condition (search keyword) indicated by the search condition information CI. A destination point DB (first point database) 23a is recorded in the recording medium 23 of the search server 20, and the control unit 21 searches for the destination point by referring to the destination point DB 23a. In the destination point DB 23a, at least a position, a name, a telephone number, and a keyword are recorded in association with each other not only at a point connected to a road on which the vehicle can travel but also on a point not connected to any road on which the vehicle can travel. . A keyword is a character string (character) extracted from a description on the Internet related to a point (such as a description on a WEB page where a point is described).

  With the function of the destination point information transmission unit 210a, the control unit 21 searches the destination point DB 23a for destination points associated with keywords that match one or more search keywords of the search condition. By the function of the destination point information transmission unit 210a, the control unit 21 acquires the position, name, and telephone number associated with the searched destination point from the destination point DB 23a, and indicates the destination, name, and telephone number. Information is generated and transmitted to the guidance server 10. In the present embodiment, the search server 20 is a server managed by a so-called Internet search provider, and records a destination point DB 23a having a data amount much larger than the arrival point DB 13a. The destination point DB 23a is subdivided from the arrival point DB 13a, and a detailed position is recorded for each subdivided point.

  Next, the software configuration of the navigation device 30 will be described. As shown in FIG. 1, the control unit 31 of the navigation device 30 executes a navigation program 310. The navigation program 310 includes a second search condition information transmission unit 310a, a guidance information generation unit 310b, and a guidance control unit 310c. The second search condition information transmission unit 310a is a module that causes the control unit 31 to execute a function of receiving a search condition from the user and transmitting the search condition information CI indicating the search condition to the guidance server 10. With the function of the second search condition information transmission unit 310a, the control unit 31 receives input of a search keyword as a search condition from a user via an input device (not shown), and generates search condition information CI indicating the search condition.

  The guidance information generation unit 310b is a module for causing the control unit 31 to execute a function of generating guidance information GI indicating a route to the arrival point. That is, by the function of the guidance information generation unit 310b, the control unit 31 refers to the map information 33a recorded on the recording medium 33, thereby searching for a known route search from the current position of the vehicle to the position of the arrival point. Search is performed by a technique, and guidance information GI indicating the route is generated. The map information 33a includes link data for specifying a link corresponding to a road and node data for specifying a node indicating a connection point of the link. Further, the current position of the vehicle is specified based on an output signal from a GPS receiving unit or a vehicle speed sensor (not shown). With the function of the guide information generating unit 310b, the control unit 31 generates guide information GI indicating the route connecting the current position of the vehicle to the position of the arrival point and the position of the destination point.

  The guidance control unit 310c is a module that causes the control unit 31 to perform a function of guiding the route to the arrival point and the position of the destination point based on the guidance information GI. That is, by the function of the guidance control unit 310c, the control unit 31 displays a map on a display device (not shown) based on the map information 33a, and the route from the current position of the vehicle to the position of the arrival point and the destination point on the map. And the position of. By displaying the end point of the route, the position of the arrival point is substantially displayed.

  In the above configuration, the destination point searched by the search server 20 and the telephone number all match, at least a part of the name matches, and the route to the arrival point connected to the road can be guided. . That is, even if the destination point searched by the search server 20 is a point that is not connected to the road, it is possible to guide the route to the arrival point that can be reached by connecting to the road. Here, it can be estimated that the arrival point where the destination point and the telephone number all match is not a facility independent of the facility corresponding to the destination point, but the point corresponding to the attached facility of the facility corresponding to the destination point. This is because there is a high possibility that an individual telephone number is assigned if the facility is independent from the facility corresponding to the destination point.

  In general, a name associated with a point is formed by combining a unique name, an attribute, a position, a direction, and the like of a facility corresponding to the point, and a name associated with a point corresponding to a certain facility, There is a high possibility that the unique name portion matches the name associated with the point corresponding to the facility attached to the facility. Therefore, when at least a part of the name associated with the destination point and the arrival point matches, it can be estimated that the arrival point is a point corresponding to the attached facility of the facility corresponding to the destination point. Since the point corresponding to the attached facility of the facility corresponding to the destination point can be specified as the arrival point, the user can first arrive at the arrival point connected to the road and then go to the destination point.

  Furthermore, the function of the arrival point specifying unit 110c allows the control unit 11 to associate, in the point DB 13a, a telephone number that is entirely matched with the telephone number associated with the destination point, and at least the name associated with the destination point. A point that is associated with a partially matching name and that is associated with a position within a predetermined distance from the position of the destination point is identified as an arrival point. Thereby, it can be guaranteed that the destination point and the arrival point are within a predetermined distance. By setting the distance that can be walked within 15 minutes as the predetermined distance as in the present embodiment, it is possible to prevent the route to the arrival point that takes longer than 15 minutes to walk to the destination point. . Further, by specifying an arrival point within a predetermined distance from the destination point, it is possible to prevent a point unrelated to the destination point from being erroneously specified as the arrival point.

  Further, the control unit 31 generates guidance information GI for guiding the position of the destination point along with the route to the arrival point by the function of the guidance information generation unit 310b. Thereby, the user can recognize the positional relationship from the arrival point to the destination point. In the present embodiment, the destination point DB 23a that the search server 20 refers to in order to search for the destination point specifies the position of the destination point in detail, so that the user can recognize in detail the positional relationship from the arrival point to the destination point. Further, by guiding the position of the destination point, it can be recognized that the destination point as the user intended is being guided. For example, if only the route to the arrival point as a parking lot at the destination point is guided, the location of the destination point can be recognized, but is the destination point intended for going to the destination point as intended by the user? It may happen that you feel suspicious or not. On the other hand, if the location of the destination point is also guided, it can be recognized that the route to the parking lot for reaching the intended destination point is guided.

(2) Destination guidance processing:
FIG. 2A is a flowchart of processing executed by the navigation device 30 in the destination point guidance processing, and FIG. 2B is a flowchart of processing executed by the guidance server 10 in the destination point guidance processing. First, as shown in FIG. 2A, the control unit 31 of the navigation device 30 receives an input of a search keyword as a search condition from a user via an input device (not shown) by the function of the second search condition information transmission unit 310a, Search condition information CI indicating the condition is transmitted to the guidance server 10 (S110). Here, a case where a search keyword “XY park” is accepted as a search condition will be described as an example. When the search condition information CI is transmitted, the control unit 31 stands by until position information PI is received from the guidance server 10 as a response to the search condition information CI (S120).

  The processing of the guidance server 10 illustrated in FIG. 2B starts with the guidance server 10 receiving the search condition information CI from the navigation device 30 as a trigger. In the period when the process of the guidance server 10 is executed, the navigation device 30 waits until it receives the position information PI (S120). When the guide server 10 receives the search condition information CI from the navigation device 30, the control unit 11 of the guide server 10 transmits the search condition information CI to the search server 20 by the function of the first search condition information transmission unit 110a (S210). ). Next, by the function of the destination point information acquisition unit 110b, the control unit 11 waits until the destination point information DI is received from the search server 20 as a response to the search condition information CI (S220).

  When the guide server 10 transmits the search condition information CI to the search server 20 (S210), the control unit 21 of the search server 20 uses the function of the destination point information transmission unit 210a to match the search conditions indicated by the search condition information CI. Search for. With the function of the destination point information transmitting unit 210a, the control unit 21 searches the destination point DB 23a for a point associated with a keyword that matches the search keyword of the search condition. When the destination point is searched, the control unit 21 generates the destination point information DI indicating at least the telephone number, name, and position associated with the searched destination point by the function of the destination point information transmitting unit 210a. Information DI is transmitted to the guidance server 10. In the present embodiment, the control unit 21 uses the function of the destination point information transmission unit 210a, and when a plurality of points associated with keywords that match the search keyword are searched, A point with a high selection frequency is set as a destination point.

  The selection frequency is obtained in advance by the search server 20 performing the following statistical processing. The search server 20 of the present embodiment is a so-called search provider provided on the Internet, and provides a map search service in response to requests from a large number of client terminals (PC, PDA, mobile phone, etc.) on the Internet. In this map search service, the search server 20 searches the destination DB 23a for points associated with keywords that match the search keyword specified from the client terminal. The search server 20 transmits information for displaying a marker indicating the position of the searched point on the map to the client terminal. When a plurality of points associated with keywords that match the search keyword are searched, the search server 20 transmits information for displaying markers for each of these points to the client terminal. When a marker is selected at the client terminal, the search server 20 transmits the URL of the WEB page associated with the point to the client terminal, assuming that the point corresponding to the marker is selected. The search server 20 statistics the frequency with which the point is selected for each search keyword as the selection frequency. Since the user selects the marker while checking the position on the map at the client terminal, the marker is displayed at a position that is highly credible as a search target position intended by the user or a position that attracts the user's attention. The frequency of selection increases with the corresponding point. Therefore, the frequency of selection of points associated with inaccurate positions is reduced. In addition, when the search target intended by the user occupies a certain area on the map and a plurality of markers are displayed in the area, the point corresponding to the marker displayed at the symbolic position of the search target is selected. Increases frequency.

  When the guide server 10 receives the destination point information DI in S220 of FIG. 2B, the control unit 11 specifies the arrival point by the function of the arrival point specifying unit 110c, and determines whether or not the arrival point can be specified (S230). . That is, by the function of the arrival point specifying unit 110c, the control unit 11 refers to the arrival point DB 13a and associates a telephone number that matches the telephone number associated with the destination point indicated by the destination point information DI. Search for a spot. Further, the function of the arrival point specifying unit 110c allows the control unit 11 to associate a name that partially matches the name associated with the destination point indicated by the destination point information DI from among the already searched points. Search for a point. Here, a component character string (component character) is generated by dividing the name associated with the destination point indicated by the destination point information DI and the name associated with the point recorded in the arrival point DB 13a in units of words. If at least one of the constituent character strings matches, part of the names match. When the search keyword “XY park” is designated, a point associated with a name having at least one of the character strings “XY” and “park” as a constituent character string is searched. Further, the function of the arrival point specifying unit 110c allows the control unit 11 to refer to the arrival point DB 13a from among the already searched points, thereby partially matching the name associated with the destination point indicated by the destination point information DI. Search for a point associated with a name that matches. And the control part 11 determines with the function of the arrival point specific | specification part 110c that the arrival point could not be specified, when one point was not able to be searched. On the other hand, the control part 11 determines with the function of the arrival point specific | specification part 110c having specified the arrival point, when one point can be searched.

When it is determined in step S230 that the arrival point cannot be specified, the control unit 11 acquires the position of the destination point indicated by the destination point information DI by the function of the position information transmission unit 110d, and the position information PI indicating the position. Is generated (S240). On the other hand, when it is determined in step S230 that the arrival point has been identified, the control unit 11 uses the function of the position information transmission unit 110d to cause the control unit 11 to detect the position of the destination point indicated by the destination point information DI and the arrival point recorded in the arrival point DB. The position information PI indicating these positions is generated (S250). In addition, when a plurality of arrival points are specified, the position of the arrival point and the destination point information DI that are associated with the name associated with the destination point indicated by the destination point information DI and the name having the highest degree of coincidence are obtained. Position information PI indicating the position of the destination point to be shown is generated. The matching degree of the names may be the ratio of the constituent character strings (constituent characters) that match among all constituent character strings (constituent characters) of the name. In addition, when the facility attribute is associated with the arrival point, the position of the arrival point and the position of the destination point that are associated with the facility attributes such as the parking lot and the getting off point among the plurality of arrival points are displayed. The position information PI indicated may be generated.
And the control part 11 transmits the positional information PI produced | generated in step S240 or step S250 to the navigation apparatus 30 by the function of the positional information transmission part 110d (S260).

  When the navigation device 30 receives the position information PI in step S120 of FIG. 2A, the control unit 31 refers to the map information 33a recorded on the recording medium 33 by the function of the guidance information generation unit 310b, thereby The guide information GI indicating the route connecting from to the position of the arrival point is generated. If it is determined in step S230 that the arrival point cannot be specified, the position of the arrival point cannot be specified based on the position information PI. In this case, the control unit 31 searches the route from the position of the destination point to the nearest point on the road by referring to the map information 33a recorded on the recording medium 33 by the function of the guidance information generating unit 310b. Then, the guide information GI indicating the route is generated. Then, the function of the guidance control unit 310c causes the control unit 31 to display a map on a display device (not shown) based on the map information 33a and to connect a route from the current position of the vehicle to the arrival point on the map. The position of the destination point is displayed on a display device (not shown) provided in the vehicle.

  FIG. 3 is a diagram showing a map displayed on the display device. The example of FIG. 3 is a map displayed when the arrival point can be specified in step S230. In the map of FIG. 3, a position marker P1 indicating the position of the destination point, a position marker P2 indicating the position of the arrival point, a vehicle marker C indicating the current position of the vehicle, and a route from the current position to the position of the arrival point. A route display R is shown. In the example of the figure, an arrival point whose name is “XY Park East Parking Lot” is specified for a destination point whose name is “XY Park”. The name “XY Park East Parking Lot” is composed of “XY”, “Park”, “East”, and “Parking” component strings (component characters), of which “XY” and “XY” "Park" matches the constituent character string (component character) of the name associated with the destination point. When one is a point corresponding to a facility attached to the other, such as “XY Park” and “XY Park East Parking Lot”, at least the part of the unique name in the component character string (component character) constituting the name There is a high probability of matching. In addition, an independent telephone number is not associated with “XY Park East Parking Lot” as an arrival point, and there is a telephone number that completely matches “XY Park” with “XY Park East Parking Lot” attached. It is associated.

  By the way, “XY Park” does not have an internal passage through which a vehicle can travel and is not connected to an external road. Therefore, it is impossible to guide (search) a route directly connected to “XY Park”. On the other hand, “XY Park East Parking Lot” is a parking lot, and an external road and an internal passage are connected. Accordingly, the route can be connected to “XY Park East Parking Lot”, and the route to “XY Park East Parking Lot” attached to “XY Park” and where the vehicle can arrive can be guided. In addition, since a point farther than a predetermined distance (1 km) from the position of the destination point is not specified as an arrival point, the time required to reach the destination point when walking at a standard speed is within 15 minutes. Can be guaranteed.

  Furthermore, in the map of FIG. 3, since the position marker P1 which shows the position of "XY park" is displayed with the position marker P2 which shows the position of "XY park east parking lot", based on these relative positional relationships. The user can recognize the direction to go after parking the vehicle in the “XY Park East Parking Lot”. In addition, when only the position marker P2 indicating the position of “XY Park East Parking Lot” is displayed, there may be a case where it is felt suspicious whether or not “XY Park” has been searched as intended by the user. By displaying the position marker P1 indicating the position of the “park”, it can be recognized that the user should first arrive at the “XY park east parking lot” in order to go to the “XY park” as intended. Furthermore, since the search server 20 sets the point of highest selection frequency when the search keyword “XY park” is specified from the client terminal as the destination point, the search server 20 sets the position of “XY park” as a search target for many users. A point associated with a position to be recognized is set as a destination point. For example, if there is a symbolic building (corresponding to the display B on the map in FIG. 3) in “XY Park”, the position of the building even if there is another point in “XY Park” The frequency of selecting the point associated with is the highest. That is, the position marker P1 indicating the position of “XY park” is displayed at a position symbolically representing “XY park” in the display area of “XY park” on the map, and the user is searched for the intended destination. Can be easily recognized.

  If the arrival point cannot be specified in step S230, the function of the guidance information generation unit 310b causes the control unit 31 to reach a point on the road closest to the destination point (end marker V in FIG. 3). To guide the route.

(3) Other embodiments:
The guidance information generation device of the present invention may be a single device. For example, each module 110a to 110d executed by the guidance server 10 may be executed by the navigation device 30. That is, the navigation device 30 may directly transmit the search condition information CI to the search server 20, and the navigation device 30 may specify the arrival point based on the destination point information DI obtained as a response. In the embodiment, the guide server 10 may generate the guide information GI indicating the route to the arrival point, and transmit the guide information GI to the navigation device 30. In addition, the function of the arrival point specifying unit 110c specifies the arrival point where the roadway is connected to guide the vehicle, but guides the arrival point where the sidewalk is connected in order to guide the pedestrian. May be.

  Due to the function of the arrival point specifying unit 110c, the control unit 11 associates the telephone number associated with the destination point in the point DB 13a with a telephone number that matches all the destination numbers, and at least a part of the name associated with the destination point. What is necessary is just to specify the point where the name which corresponds corresponds as an arrival point, and it is not necessary to verify that the destination point and the arrival point are within a predetermined distance. This is because, when the telephone numbers all match, there is a high possibility that the destination point and the arrival point are close without verifying that the destination point and the arrival point are within a predetermined distance.

  With the function of the arrival point specifying unit 110c, the control unit 11 may specify the arrival point based on at least the name and the telephone number, and may specify the arrival point based on other information associated with the point. . For example, the arrival point may be specified in consideration of whether the address or the postal code associated with the point matches. In addition, when the phone number is the same as the part of the name, it is not limited to the case where the character code of the character corresponding to the whole phone number or a part of the name is the same. May be substantially synonymous. For example, even if the uppercase and lowercase letters of the alphabet are different, they may match, even if the hiragana and katakana are different, they may match, and even if the kanji and hiragana are in a convertible relationship, they match. It is good. If at least part of the names associated with the destination point and the arrival point match, if part of the names associated with the destination point and the arrival point match, the name is associated with the destination point. If all of the names associated with the arrival point match some of the names associated with the destination, and if all of the names associated with the destination coincide with all of the names associated with the arrival point And the case where the names associated with the arrival points all match.

  With the function of the guidance information generation unit 310b, the control unit 31 may generate the guidance information GI that guides only the route to the arrival point, and may not necessarily generate the guidance information that guides the position of the destination point. This is because if the user can be guided to the vicinity of the arrival point, the user can recognize the destination point in the actual field of view without guiding the position of the destination point. Moreover, the control part 31 may produce | generate the guidance information GI which shows the path | route to an arrival point with an audio | voice by the function of the guidance information generation part 310b.

  That is, the navigation device 30 records the destination point DB (first point database) 23a and the arrival point DB (second point database) 13a on the recording medium 33, and the navigation device 30 searches the destination point DB 23a and the arrival point DB 13a. You may carry out sequentially. That is, the control unit 31 of the navigation device 30 may execute all the modules (110a to 110d, 210a, 310a to 310c) illustrated in FIG. The search condition information CI, the destination point information DI, and the guidance information GI are transmitted and received between modules in the navigation device 30. In this case, since the destination point DB 23a and the arrival point DB 13a can be managed individually in the navigation device 30, for example, the update frequency of the destination point DB 23a and the arrival point DB 13a can be made different. For example, the destination point DB 23a may have an update frequency corresponding to a change in search tendency on the Internet or the like, and the arrival point DB 13a may have an update frequency according to the frequency of road construction.

DESCRIPTION OF SYMBOLS 1 ... Destination guidance system, 10 ... Guide server, 20 ... Search server, 30 ... Navigation device, 11, 21, 31 ... Control part, 12, 22, 32 ... Communication part, 13, 23, 33 ... Recording medium, 13a ... arrival point DB, 23a ... destination point DB, 33a ... map information, 110 ... location information providing program, 110a ... search condition information transmission part, 110b ... destination point information acquisition part, 110c ... arrival point identification part, 110d ... position information Transmission unit 210 ... Search program, 210a ... Target point information transmission unit, 310 ... Navigation program, 310a ... Search condition information transmission unit, 310b ... Guidance information generation unit, 310c ... Guidance control unit, P1, P2 ... Position marker, CI ... Search condition information, DI ... Destination point information, GI ... Guidance information, B ... Display, C ... Vehicle marker, V ... End point marker.

Claims (5)

In the first point database in which the telephone number and the name are recorded in association with each other for the point, the destination point information indicating the telephone number and the name associated with the destination point searched as a point that matches the destination search condition Destination point information acquisition means to acquire;
In the second point database in which the phone number, name, and location are recorded in association with each other, a phone number that is completely matched with the phone number associated with the destination point indicated by the destination point information is associated with, and An arrival point specifying means for specifying, as an arrival point, a point associated with a name corresponding at least in part to a name associated with the destination point indicated by the destination point information;
Guidance information generating means for generating guidance information indicating a route to the arrival point;
A guide information generating apparatus. The destination point information acquisition means acquires the destination point information indicating a position, a telephone number, and a name of the destination point,
In the second point database, the arrival point specifying means is associated with a phone number that matches the telephone number associated with the destination point indicated by the destination point information, and the destination point information indicates the destination. A point that is associated with a name that is at least partially matched with a name associated with a point and that is associated with a position within a predetermined distance from the position of the destination point indicated by the destination point information is defined as the arrival point. Identify,
The guidance information generation device according to claim 1. The guidance information generating means generates the guidance information for guiding the position of the destination point together with the route to the arrival point.
The guidance information generation device according to claim 1 or 2. In the first point database in which the telephone number and the name are recorded in association with each other for the point, the destination point information indicating the telephone number and the name associated with the destination point searched as a point that matches the destination search condition Destination point information acquisition process to be acquired;
In the second point database in which the phone number, name, and location are recorded in association with each other, a phone number that is completely matched with the phone number associated with the destination point indicated by the destination point information is associated with, and An arrival point specifying step for specifying, as an arrival point, a point associated with a name at least partially matching the name associated with the destination point indicated by the destination point information;
A guide information generating step for generating guide information indicating a route to the arrival point;
A guide information generation method including In the first point database in which the telephone number and the name are recorded in association with each other for the point, the destination point information indicating the telephone number and the name associated with the destination point searched as a point that matches the destination search condition Destination point information acquisition function to acquire,
In the second point database in which the phone number, name, and location are recorded in association with each other, a phone number that is completely matched with the phone number associated with the destination point indicated by the destination point information is associated with, and An arrival point specifying function for specifying, as an arrival point, a point associated with a name at least partially matching the name associated with the destination point indicated by the destination point information;
A guide information generating function for generating guide information indicating a route to the arrival point;
Guide information generating program for causing a computer to execute.

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