JP2013050917A - Posting providing system, posting providing device, posting providing method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a posting providing system, a posting providing device, a posting providing method, and a computer program capable of correcting an error in position information associated with a posting in accordance with a sentence in the positing.SOLUTION: When receiving a posting browsing request from a vehicle 5, a posting providing system obtains search conditions from the vehicle 5 having made the browsing request, extracts a posting satisfying the obtained search conditions among postings submitted on a computer network, corrects posting position information associated with the posting on the basis of content of the posting, and provides the extracted posting on the basis of the corrected position information.

Description

  The present invention relates to a posted text providing system, a posted text providing apparatus, a posted text providing method, and a computer program that provide posted text posted on a computer network.

  In recent years, there has been provided a system that allows a user to post a posted text on a computer network via a terminal and to browse a posted text posted by another user. For example, there are blogs, SNS (Social Network Service), Twitter (registered trademark), chat and the like (hereinafter referred to as SNS). In addition, these posted texts include many posted texts that post information related to traffic information such as traffic jam information and traffic stop information.

  Here, although SNS etc. have the merit which can acquire the newest information quickly, since the amount of information is enormous, it was difficult to extract and provide only necessary information for the user who browses. Therefore, for example, in Japanese Patent Application Laid-Open No. 2006-65535, positional information indicating the position of the poster when the posted text is posted is associated with the posted text and stored in the server. There has been proposed a technique that provides the position information indicating the position of the poster who posted the posted text together with the posted text to the user who browses the posted text.

JP 2006-65535 A (pages 10 to 12, FIG. 8, FIG. 10)

  Here, in the technique of the above-mentioned Patent Document 1, when specifying the position of the contributor when the posted text is posted, a sensor for detecting the position of the GPS or the like provided in the communication terminal is used. However, since the detection accuracy of these sensors is not high, there is often a large error between the position of the poster when the posted text is actually posted and the position stored in association with the posted text. It was. As a result, when providing the location information of the contributor when the posted text is posted together with the posted text, a position different from the actual position may be provided, and the reliability of the information provided decreases. There was a problem to do.

  The present invention has been made to solve the above-described problems, and corrects position information based on the content of a posted sentence when associating position information with a posted sentence posted on a computer network. Thus, even if there is an error in the positional information associated with the posted message, the posted message providing system, the posted message providing device, which can correct the error along the sentence of the posted message, It is an object to provide a posted text providing method and a computer program.

  In order to achieve the above object, a posted text providing system (1) according to claim 1 of the present application acquires a posted text posted on a computer network together with position information associated with the posted text. (13), based on the content of the posted text acquired by the posted text information acquiring means, position information correcting means (13) for correcting the positional information associated with the posted text, Search condition acquisition means (13) for acquiring a search condition, and a corresponding post sentence that is a post sentence corresponding to the search condition acquired by the search condition acquisition means is extracted from the post sentence posted on the computer network. Search means (13), and based on the position information corrected by the position information correction means, the corresponding posted sentence extracted by the search means And providing means for providing (13), characterized in that it has a.

  Further, the posted text providing system (1) according to claim 2 is the posted text providing system according to claim 1, wherein the providing means (13) is the corresponding one extracted by the search means (13). The position information associated with the corresponding posted text is provided together with the text of the posted text.

  Further, the posted text providing system (1) according to claim 3 is the posted text providing system according to claim 1 or 2, wherein the search means (13) is the position information correcting means (13). Based on the position information corrected by the above, the corresponding posted message is extracted from the posted message posted on the computer network.

  Further, the posted text providing system (1) according to claim 4 is the posted text providing system according to any one of claims 1 to 3, wherein the position information correcting means (13) is configured to transmit the posted text. When a word related to a road is included in the posted text acquired by the information acquisition means (13), the position specified by the position information is corrected so as to be positioned on the road. To do.

  Further, the posted text providing system (1) according to claim 5 is the posted text providing system according to claim 4, wherein the position information correcting means (13) is provided by the posted text information acquiring means (13). When a word related to a road is included in the obtained posted sentence, the position specified by the position information is corrected so as to be a point on the road closest to the position. .

  Further, the posted text providing system (1) according to claim 6 is the posted text providing system according to claim 4 or 5, wherein the position information correcting means (13) is the posted text information acquiring means. When the post sentence acquired in (13) includes a word related to a road type or a road name, the position specified by the position information is located on the road corresponding to the road type or the road name. It corrects so that it may do.

  Further, the posted text providing system (1) according to claim 7 is the posted text providing system according to any one of claims 1 to 3, wherein the position information correcting means (13) is configured to transmit the posted text. When the posted text acquired by the information acquisition means (13) includes a word related to a railway, the position specified by the position information is corrected so as to be positioned on a route. To do.

  Further, the posted text providing system (1) according to claim 8 is the posted text providing system according to claim 7, wherein the position information correcting means (13) is provided by the posted text information acquiring means (13). When a word related to a railway is included in the obtained posted sentence, the position specified by the position information is corrected so as to be a point on a route closest to the position. .

  Further, the posted text providing system (1) according to claim 9 is the posted text providing system according to claim 7 or claim 8, wherein the position information correcting means (13) is the posted text information acquiring means. When a word related to a route type or a route name is included in the posted text acquired in (13), the position specified by the position information is located on a route corresponding to the route type or the route name. It corrects so that it may do.

  Further, the posted text providing system (1) according to claim 10 is the posted text providing system according to any one of claims 1 to 3, wherein the position information correcting means (13) is configured to transmit the posted text. When a word related to a facility is included in the posted sentence acquired by the information acquisition means (13), the position specified by the position information is corrected so as to be positioned on the facility. To do.

  Further, the posted text providing system (1) according to claim 11 is the posted text providing system according to claim 10, wherein the position information correcting means (13) is provided by the posted text information acquiring means (13). When a word related to a facility is included in the obtained posted sentence, the position specified by the position information is corrected so as to be a point on the facility closest to the position. .

  Further, the posted text providing system (1) according to claim 12 is the posted text providing system according to claim 10 or 11, wherein the position information correcting means (13) is the posted text information acquiring means. In the case where a word related to the genre or facility name of the facility is included in the posted text acquired in (13), the position specified by the position information is on the facility corresponding to the genre of the facility or the facility name. It corrects so that it may be located in.

  The posted message providing device (2) according to claim 13 includes a posted message information acquisition means (13) for acquiring a posted message posted on a computer network together with position information associated with the posted message; Based on the content of the posted text acquired by the posted text information acquiring means, position information correcting means (13) for correcting the positional information associated with the posted text, and search for acquiring the posted text search condition A condition acquisition means (13) and a search means (13) for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring means from the posted sentence posted on the computer network. And providing means (13) for providing the corresponding posted sentence extracted by the search means based on the position information corrected by the position information correction means , Characterized by having a.

  Further, the posted text providing method according to claim 14 includes a posted text information acquisition step of acquiring a posted text posted on a computer network together with position information associated with the posted text, and the posted text information acquiring step. On the computer network, a position information correction step for correcting the position information associated with the posted text based on the content of the acquired posted text, a search condition acquisition step for acquiring a search condition for the posted text, A search step for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring step from the posted sentence, and the position information corrected by the position information correcting step. And a providing step for providing the corresponding posted sentence extracted by the searching step. It is characterized in.

  Furthermore, the computer program according to claim 15 includes a posted message information acquisition function for acquiring a posted message posted on a computer network together with position information associated with the posted message, and the posted message information acquiring function. A position information correction function for correcting the position information associated with the posted sentence based on the content of the posted sentence acquired by the above, a search condition acquiring function for acquiring a search condition for the posted sentence, and a computer network A search function for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring function from the posted sentence posted on the position, and the position information corrected by the position information correcting function And a providing function for providing the corresponding posted sentence extracted by the search function. And butterflies.

  In the posted text providing system according to claim 1 having the above-described configuration, the position information associated with the posted text is corrected based on the content of the posted text, and a predetermined search is performed from the posted text posted on the computer network. Since the corresponding posted text that is the posted text that meets the conditions is extracted and the corresponding posted text extracted based on the corrected location information is provided, the location information for the posted text posted on the computer network Can be corrected along the text of the posted text even if there is an error in the position information associated with the posted text. For example, if the position of the poster when the posted text is posted is associated, the position between the position of the poster when the posted text is actually posted and the position stored in association with the posted text It is possible to prevent a large error from occurring.

  Further, in the posted text providing system according to claim 2, since the position information associated with the corresponding posted text is provided together with the text of the corresponding posted text extracted based on the search condition, the text content of the provided posted text is provided. It is possible to prevent inconsistencies in the position of the poster. Furthermore, it becomes possible for the user to easily grasp which post the information about which subject is posted.

  Further, in the posted message providing system according to claim 3, since the corresponding posted message is extracted from the posted message posted on the computer network based on the corrected position information, the posted message corresponding to the search condition is accurately determined. It becomes possible to extract. As a result, it is possible to appropriately provide a post message required by the user.

  In the posted text providing system according to claim 4, when the posted text includes a word related to the road, the position specified by the positional information associated with the posted text is on the road. Therefore, the position information associated with the posted sentence can be corrected to a more correct position along the sentence of the posted sentence. In addition, it is possible for the user to easily grasp which road information the posted message has posted.

  Further, in the posted text providing system according to claim 5, when the posted text includes a word related to a road, the position specified by the positional information associated with the posted text is most determined from the position. Since the correction is made so that the point is on a nearby road, the position information associated with the posted sentence can be corrected to a more correct position along the sentence of the posted sentence with a minimum correction.

  Further, in the posted text providing system according to claim 6, when the posted text includes a word related to a road type or a road name, the position specified by the positional information associated with the posted text is determined as the road. Since correction is made so that the point on the road corresponds to the type or road name, the position information associated with the posted text can be corrected to a more correct position along the text of the posted text. In particular, even in an area where roads are dense, it is possible to correct the position information associated with the posted text to the correct position by considering the road type and the road name.

  Further, in the posted text providing system according to claim 7, when the posted text includes a word related to the railway, the position specified by the positional information associated with the posted text is on the route. Therefore, the position information associated with the posted sentence can be corrected to a more correct position along the sentence of the posted sentence. In addition, it is possible for the user to easily grasp which railroad route the posted message has posted.

  Further, in the posted text providing system according to claim 8, when the posted text includes a word related to the railway, the position specified by the position information associated with the posted text is most determined from the position. Since the correction is made so that the point is on a close route, the position information associated with the posted text can be corrected to a more correct position along the text of the posted text with a minimum correction.

  Further, in the posted text providing system according to claim 9, when the posted text includes a word related to the route type and the route name, the position specified by the positional information associated with the posted text is determined as the route. Since the correction is made so that the point is on the route corresponding to the type or the route name, the position information associated with the posted sentence can be corrected to a more correct position along the sentence of the posted sentence. In particular, even in an area where routes are dense, it is possible to correct the position information associated with the posted text to the correct position by considering the route type and route name.

  In the posted text providing system according to claim 10, if the posted text includes a word related to the facility, the position specified by the positional information associated with the posted text is on the facility. Therefore, the position information associated with the posted sentence can be corrected to a more correct position along the sentence of the posted sentence. In addition, it is possible for the user to easily grasp which facility the posted message is about which information is posted.

  Further, in the posted text providing system according to claim 11, when the posted text includes a word related to the facility, the position specified by the positional information associated with the posted text is most determined from the position. Since the correction is made so that the point is on a nearby facility, the position information associated with the posted text can be corrected to a more correct position along the text of the posted text with a minimum correction.

  Further, in the posted text providing system according to claim 12, when the posted text includes a word related to the facility name or the facility genre, the location specified by the positional information associated with the posted text is determined as the facility. Since it correct | amends so that it may become a point on the facility corresponding to a name and a facility genre, it becomes possible to correct | amend the positional information linked | related with the said posting to the more correct position along the text of a posting. In particular, even in an area where facilities are densely populated, it is possible to correct the position information associated with the posted text to the correct position by considering the facility name and the facility genre.

  Further, in the posted message providing apparatus according to claim 13, the position information associated with the posted message is corrected based on the content of the posted message, and a predetermined search condition is satisfied from the posted message posted on the computer network. Since the corresponding posted text that is the corresponding posted text is extracted and the corresponding posted text extracted based on the corrected location information is provided, the location information is associated with the posted text posted on the computer network. In some cases, even if there is an error in the position information associated with the posted text, the error can be corrected along the text of the posted text. For example, if the position of the poster when the posted text is posted is associated, the position between the position of the poster when the posted text is actually posted and the position stored in association with the posted text It is possible to prevent a large error from occurring.

  Further, in the posted text providing method according to claim 14, the position information associated with the posted text is corrected based on the content of the posted text, and a predetermined search condition is determined from the posted text posted on the computer network. Since the corresponding posted text that is the corresponding posted text is extracted and the corresponding posted text extracted based on the corrected location information is provided, the location information is associated with the posted text posted on the computer network. In some cases, even if there is an error in the position information associated with the posted text, the error can be corrected along the text of the posted text. For example, if the position of the poster when the posted text is posted is associated, the position between the position of the poster when the posted text is actually posted and the position stored in association with the posted text It is possible to prevent a large error from occurring.

  Furthermore, in the computer program according to claim 15, the position information associated with the posted text is corrected based on the content of the posted text, and a predetermined search condition is satisfied from the posted text posted on the computer network. In the case of associating position information with a posted sentence posted on a computer network, the corresponding posted sentence that is a posted sentence is extracted and the corresponding posted sentence extracted based on the corrected positional information is provided. Even if there is an error in the position information associated with the posted message, the error can be corrected along the sentence of the posted message. For example, if the position of the poster when the posted text is posted is associated, the position between the position of the poster when the posted text is actually posted and the position stored in association with the posted text It is possible to prevent a large error from occurring.

1 is a schematic configuration diagram illustrating a posted text providing system according to an embodiment. It is the block diagram which showed the structure of the contribution text provision system which concerns on this embodiment. It is the figure which showed an example of the contribution text information memorize | stored in contribution text information DB of a contribution text information management center. It is a block diagram which shows typically the control system of the navigation apparatus which concerns on this embodiment. It is a flowchart of the posting text search processing program concerning this embodiment. It is the figure which showed the search condition input screen displayed on a liquid crystal display. It is the figure which showed the contribution text guidance screen displayed on a liquid crystal display in step 5. FIG. It is the figure which showed the other display form of the contribution text guidance screen. It is a flowchart of the sub process program of the positional information correction process which concerns on this embodiment. It is a flowchart of the sub-processing program of the facility location information correction process according to the present embodiment. It is the figure explaining the correction method of contribution position information based on facility data. It is a flowchart of the sub-process program of the railroad position information correction process which concerns on this embodiment. It is a figure explaining the correction method of contribution position information based on route data. It is a flowchart of the sub process program of the road position information correction process which concerns on this embodiment. It is a figure explaining the correction method of contribution position information based on link data.

  DETAILED DESCRIPTION Hereinafter, a posted text providing system according to the present invention will be described in detail with reference to the drawings based on an embodiment that is embodied. First, a schematic configuration of the posted text providing system 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic configuration diagram showing a posted text providing system 1 according to the present embodiment. FIG. 2 is a block diagram showing a configuration of the posted text providing system 1 according to the present embodiment.

  As shown in FIG. 1, a posted text providing system 1 according to the present embodiment includes a posted text search center 2, a posted text information management center 3, and a mobile terminal mounted on a vehicle 5 corresponding to a posted text providing device. The navigation device 6 is basically configured. Instead of the navigation device 6, a communication terminal such as a mobile phone, a PDA, or a smartphone may be used.

  Here, for each posted message stored in the posted message information management center 3, the posted message search center 2 is associated with the posted message “position information indicating the position of the poster when the posted message is posted (hereinafter referred to as“ poster information ”). This is a center that corrects “post position information”) to a more accurate position. The posted text search center 2 corresponds to the search condition set in the vehicle 5 from the posted text stored in the posted text information management center 3 when the vehicle 5 requests browsing of the posted text. The posted text is extracted, and information regarding the extracted posted text is distributed to the navigation device 6 of the vehicle 5. Details of the posted text search center 2 will be described later.

  The posted text information management center 3 manages blogs, SNS (Social Network Service), Twitter (registered trademark), chat, etc. (hereinafter referred to as SNS, etc.), and posted text posted on a computer network in the SNS or the like. The center that stores and provides The posting of the posted text by the user can be performed by a communication terminal such as a PC, a mobile phone, a PDA, or a smartphone. The posted text information management center 3 has a posted text information DB 8 as a storage medium, and posted posted texts are sequentially stored in the posted text information DB 8. In addition, the posted text information DB 8 stores the posted text, the posting time when the posted text is posted, the posting position information, the contributor's ID, and the like. Here, FIG. 3 is a diagram showing an example of posted texts collected and provided in the posted text information management center 3. As illustrated in FIG. 3, the posted text includes a posting time, posted position information, a user ID, a posted text, and the like. In the posted message information management center 3, information related to posted messages posted by users from all over the country is cumulatively stored in the posted message information DB 8. When the stored data amount exceeds a predetermined amount, the posted message information management center 3 relates to past posted messages. The information is deleted in order.

  The posted text search center 2 and the posted text information management center 3 are connected to the communication network 9 through communication devices, and are configured to be capable of bidirectional communication between a plurality of centers.

  On the other hand, the navigation device 6 is installed in a vehicle 5 traveling on each road in the country, detects the current position and traveling direction of the vehicle 5, displays a map around the vehicle position based on the stored map information, This is an in-vehicle device that searches and guides a route to a destination. The navigation device 6 is connected to the communication network 9 via the communication module 10 and is configured to be capable of bidirectional communication with the posted text search center 2. And when the information regarding the posted text is received from the posted text search center 2, the text content of the received posted text is displayed on the display of the navigation device 6 as described later, and the content of the posted text can be viewed by the user. (See FIGS. 7 and 8). The details of the navigation device 6 will be described later.

  Next, the configuration of the posted text search center 2 constituting the posted text providing system 1 will be described in more detail with reference to FIG. As shown in FIG. 2, the posted text search center 2 basically includes a server 11, a map information DB 12 as information recording means connected to the server 11, and a center communication device 13.

  The server 11 is an electronic control unit that performs various controls in the posted text search center 2 as shown in FIG. The CPU 21 as the arithmetic device and the control device, the RAM 22 used as a working memory when the CPU 21 performs various arithmetic processes, various control programs, and a post message providing processing program (FIGS. 5, 9, and 9) described later. 10, FIG. 12, FIG. 14) and the like are stored. The server 11 constitutes various means as processing algorithms. For example, the posted message information acquisition unit acquires a posted message posted on the computer network together with the location information of the poster when the posted message stored in association with the posted message is posted. The position information correcting unit corrects the posted position information associated with the posted text based on the content of the posted text. The search condition acquisition unit acquires a search condition for the posted text. The search means extracts a posted text (corresponding posted text) corresponding to the search condition acquired by the search condition acquiring means from the posted text posted on the computer network. The providing means provides the corresponding posted text extracted by the searching means based on the posting position information corrected by the position information correcting means.

  The map information DB 12 is storage means for storing map information. Here, the map information stored in the map information DB 12 stores various information necessary for route search and map display including a road network. For example, link data relating to roads (links), nodes relating to node points, and the like. Data, route data on railway lines, facility data on facilities, intersection data on each intersection, search data for searching routes, search data for searching points, map display data for displaying maps, etc. Has been. The map information DB 12 is periodically updated to new map information.

  The center communication device 13 is a communication device for communicating with the posted text information management center 3 and the navigation device 6 via the communication network 9. In the present embodiment, information related to search conditions and posted text is transmitted and received between the posted text information management center 3 and the navigation device 6 via the center communication device 13.

  Next, a schematic configuration of the navigation device 6 mounted on the vehicle 5 will be described with reference to FIG. FIG. 4 is a block diagram schematically showing a control system of the navigation device 6 according to the present embodiment.

  As shown in FIG. 4, the navigation device 6 according to the present embodiment is based on a current position detection unit 31 that detects the current position of the vehicle, a data recording unit 32 that records various data, and input information. The navigation ECU 33 that performs various arithmetic processes, the operation unit 34 that receives operations from the user, the map image and the content of the posted text extracted by the posted text search center 2 based on a predetermined search condition for the user, etc. A liquid crystal display 35 for displaying various information, a speaker 36 for outputting voice guidance related to route guidance, a DVD drive 37 for reading a DVD as a storage medium, a posted text search center 2 and VICS (registered trademark: Vehicle Information and Communication). The communication module 10 communicates with an information center such as a (System) center.

Below, each component which comprises the navigation apparatus 6 is demonstrated in order.
The current position detection unit 31 includes a GPS 41, a vehicle speed sensor 42, a steering sensor 43, a gyro sensor 44, and the like, and can detect the current vehicle position, direction, vehicle traveling speed, current time, and the like. . Here, in particular, the vehicle speed sensor 42 is a sensor for detecting a moving distance and a vehicle speed of the vehicle, generates a pulse according to the rotation of the driving wheel of the vehicle, and outputs a pulse signal to the navigation ECU 33. And navigation ECU33 calculates the rotational speed and moving distance of a driving wheel by counting the pulse which generate | occur | produces. Note that the navigation device 6 does not have to include all of the above five types of sensors, and the navigation device 6 may include only one or more of these types of sensors.

  Further, the data recording unit 32 reads out a hard disk (not shown) as an external storage device and a recording medium, a map information DB 45, a received post DB 46, a predetermined program, and the like recorded on the hard disk and stores predetermined data on the hard disk. And a recording head (not shown) which is a driver for writing. The data recording unit 32 may be configured by a memory card, an optical disk such as a CD or a DVD, instead of the hard disk.

  Here, the map information DB 45 includes, for example, link data relating to roads (links), node data relating to node points, route data relating to railway routes, facility data relating to facilities, map display data for displaying maps, and intersections relating to intersections. The storage means stores data, search data for searching for a route, search data for searching for a point, and the like.

  The received posted text DB 46 is storage means for storing information related to the posted text received from the posted text search center 2. The posted text search center 2 corresponds to the search condition set in the vehicle 5 from the posted text stored in the posted text information management center 3 when the vehicle 5 requests browsing of the posted text. The posted text is extracted, and information regarding the extracted posted text is distributed to the navigation device 6 of the vehicle 5. In addition, the received posted text DB 46 stores the posted text, the posting time when the posted text is posted, the posting position information, the ID of the poster, and the like.

  On the other hand, the navigation ECU (Electronic Control Unit) 33 is an electronic control unit that controls the entire navigation device 6. The CPU 51 as an arithmetic device and a control device, and a working memory when the CPU 51 performs various arithmetic processes. RAM 52 for storing route data when a route is searched, a control program, a ROM 53 in which a posted text providing processing program (FIG. 5) is recorded, and a program read from the ROM 53 An internal storage device such as a flash memory 54 is stored.

  The operation unit 34 is operated when inputting a starting point as a traveling start point and a destination as a traveling end point, when inputting search conditions for a posted sentence, and the like, and a plurality of operation switches such as various keys and buttons. (Not shown). Then, the navigation ECU 33 performs control to execute various corresponding operations based on switch signals output by pressing the switches. The operation unit 34 can also be configured by a touch panel provided on the front surface of the liquid crystal display 35. Moreover, it can also be comprised with a microphone and a speech recognition apparatus.

  Further, the liquid crystal display 35 includes a map image including a road, traffic information, operation guidance, operation menu, key guidance, a planned travel route from the departure point to the destination, guidance information along the planned travel route, news, weather, and the like. Forecast, time, mail, TV program, etc. are displayed. In particular, in the present embodiment, information on the posted text received from the posted text search center 2 (sentence content of posted text, ID of the poster, posting position, etc.) is also displayed.

  Further, the speaker 36 outputs voice guidance for guiding traveling along the planned traveling route and traffic information guidance based on an instruction from the navigation ECU 33.

  The DVD drive 37 is a drive that can read data recorded on a recording medium such as a DVD or a CD. Based on the read data, music and video are reproduced, the map information DB 45 is updated, and the like.

  The communication module 10 is a communication device for receiving traffic information including information such as traffic jam information, regulation information, and traffic accident information transmitted from a traffic information center, for example, a VICS center or a probe center. For example, a mobile phone or DCM is applicable. It is also used for transmitting search conditions to / from the posted text search center 2 and receiving information on the extracted posted text.

  Next, the posted message providing processing program executed in the navigation device 6 and the posted message search center 2 constituting the posted message providing system 1 having the above-described configuration will be described with reference to FIG. FIG. 5 is a flowchart of the posted text provision processing program according to the present embodiment. Here, the posted message provision processing program is executed after the ACC of the vehicle is turned on, and when the vehicle 5 requests to view the posted message, the posted message is posted on the computer 5 from the posted messages posted on the computer network. This is a program for extracting a posted sentence corresponding to a set search condition and providing information related to the extracted posted sentence to the vehicle 5. The programs shown in the flowcharts of FIGS. 5, 9, 10, 12, and 14 below are stored in the RAM, ROM, and the like provided in the posted text search center 2 and the navigation device 6, and the CPU 21 and CPU 51. It is executed by.

First, the posted message provision processing program executed in the navigation device 6 will be described.
In step (hereinafter abbreviated as S) 1, the CPU 51 acquires a search condition for searching for a posted text based on a user operation received by the operation unit 34. Specifically, the search condition input by the operation unit 34 on the search condition input screen displayed on the liquid crystal display 35 of the navigation device 6 is acquired as a search condition for searching for a posted sentence.

Here, FIG. 6 is a diagram showing a search condition input screen 61 displayed on the liquid crystal display 35 of the navigation device 6.
The search condition input screen 61 is an input screen for a user who needs post message information to input search conditions for narrowing down the required post message, and when a predetermined operation is performed on the menu screen Are displayed on the liquid crystal display 35. As shown in FIG. 6, the search condition input screen 61 is operated when a search is started with a plurality of search word input units 62 to 64 for inputting a search word as a search condition and the currently input condition. The search start operation unit 65 is displayed. Then, a posted sentence that includes the search word input to the search word input units 62 to 64 in the sentence is searched. For example, in the example shown in FIG. 6, “XX street” and “traffic jam” are entered as search words, and a posted sentence including both “XX street” and “traffic jam” in the text is searched. It becomes.
In addition to the above-described search word, a condition for specifying a posting time or a posting position can be used as a search condition. For example, if you enter the condition that the posting position is XX city, search for the posted text posted by the contributor in XX city (that is, the posted text associated with the posting position in XX city). Is possible. Further, if a condition for setting the posting time to be within 12 hours is input, it becomes possible to search for posted text posted by the poster within 12 hours.

  Next, in S <b> 2, the CPU 51 determines whether or not a predetermined operation for requesting browsing of the posted text has been performed on the operation unit 34. Specifically, when the search start operation unit 65 of the search condition input screen 61 is operated, it is determined that a predetermined operation for requesting browsing of the posted text has been performed.

  If it is determined that a predetermined operation for requesting browsing of the posted text has been performed on the operation unit 34 (S2: YES), the process proceeds to S3. On the other hand, when it is determined that the predetermined operation for requesting browsing of the posted text is not performed on the operation unit 34 (S2: NO), the posted text providing process program is terminated.

  In S3, the CPU 51 transmits the search condition acquired in S1 to the posted text search center 2. In addition, as described later, the posted message search center 2 that has received the search condition extracts a posted message that meets the search condition from the posted messages posted on the computer network based on the received search condition (S12). ).

  Next, in S <b> 4, the CPU 51 receives information related to the posted text transmitted from the posted text search center 2. Note that the information related to the posted text received in S4 is the posted text extracted from the posted text posted on the computer network based on the search condition transmitted in S3, that is, the posted text corresponding to the search condition ( This is information on the corresponding post). Also, the information related to the posted text includes the posted time of the posted text, posted position information, the poster ID, and the like, along with the text of the posted text.

  Thereafter, in S5, the CPU 51 displays information on the corresponding posted message received in S4 on the liquid crystal display 35. In addition, the information to be displayed may display all of the text of the posted text, the posting time when the posted text was posted, the posting position information, and the ID of the poster, or may be configured to display only a part. . However, at least the text of the posted text is displayed. Further, when posting position information is displayed, the posting position information corrected by the position information correction process of S13 described later is displayed.

Here, FIG. 7 is a view showing the posted message guidance screen 71 displayed on the liquid crystal display 35 in S5. As shown in FIG. 7, the posted message guidance screen 71 is composed of two display areas: a left screen 72 that displays a map around the vehicle, and a right screen 73 that displays information related to posted messages.
And the left screen 72 is the posting position which shows the map image 74 around the vehicle, the own vehicle position mark 75 indicating the current position of the vehicle, and the posting position of the displayed posted sentence (position specified by the posting position information). It consists of marks 76-79.
Further, the right screen 73 is provided with information display spaces 81 to 84 for displaying information related to the posted text. In each information display space 81-84, the ID of the poster who posted the posted text. Display the contents of each post. In addition, as shown in FIG. 8, you may comprise so that the information display spaces 81-84 may be arrange | positioned at the whole screen. In addition, when a predetermined icon displayed on the liquid crystal display 35 is pressed, the information display spaces 81 to 84 may be displayed. Further, when there are a large number of posted sentences, it is desirable that the posted sentences are switched and displayed by a scroll operation. Moreover, when displaying information related to a posted message, a posted message posted at a position close to the vehicle may be displayed with priority. Furthermore, a posted sentence determined to have a high degree of matching with the search condition in the search process (S12) described later may be displayed with priority.
Then, by visually recognizing the posted message guidance screen 71 shown in FIGS. 7 and 8, the user posts the contents related to the information related to the vehicle 5 desired by the user (for example, traffic jam information and traffic stop information). The contents can be browsed, and as a result, information related to the vehicle 5 can be grasped at a faster timing. In addition, when displaying the posting position information, the posting position information corrected by the position information correction process of S13 described later is displayed, so that it is between the position of the poster when the posted sentence is actually posted. It is possible to indicate the position of the poster more accurately without causing a large error.

Next, a posted message provision processing program executed in the posted message search center 2 will be described.
First, in S <b> 11, the CPU 21 receives the search condition transmitted from the vehicle 5 that requests to view the posted text.

  Next, in S12, the CPU 21 performs a search process for searching for a posted sentence (corresponding posted sentence) corresponding to the search condition from the posted sentences posted on the computer network using the search condition acquired in S11. Run. Specifically, information on the corresponding posted text is extracted from the posted text information (FIG. 3) stored in the posted text information DB 8 of the posted text information management center 3. As described above, as a search condition, it is possible to set a post time other than the search word and a condition for designating a post position.

  Subsequently, in S13, the CPU 21 executes position information correction processing (FIG. 9) described later. Here, the position information correction processing is performed by adding “position information (post position information) indicating the position of the poster when the post is posted” associated with the corresponding post based on the text content of the post. This is a process of correcting to a more accurate position.

  Thereafter, in S14, the CPU 21 transmits information related to the corresponding posted message extracted in S12 (including posted position information) to the vehicle 5 that has requested browsing of the posted message. For post position information, post position information corrected by the position information correction process of S13 is transmitted. As a result, in the navigation device 6 of the vehicle 5 that has requested browsing of the posted text, information related to the posted text in which the content related to the information related to the vehicle 5 desired by the user (for example, traffic jam information and traffic stop information) is displayed. (S5). Further, with regard to the posting position information, more accurate position information after correction is displayed.

  Next, sub processing of the position information correction processing executed in S13 will be described with reference to FIG. FIG. 9 is a flowchart of a sub-processing program for position information correction processing.

  The subsequent processes of S21 to S28 are performed for each corresponding posted sentence corresponding to the search condition extracted in S12. Specifically, the processes of S21 to S28 are sequentially executed in order of the posting date for each corresponding posted sentence, and the process proceeds to S14 after the processes of S21 to S28 are executed for all the corresponding posted sentences.

  First, in S <b> 21, the CPU 21 acquires post position information associated with a corresponding post sentence to be processed from the post sentence information DB 8 (see FIG. 3) of the post sentence information management center 3. The posting position information is information indicating the position of the contributor when the posted text is posted as described above.

  Next, in S <b> 22, the CPU 21 acquires the text of the corresponding posted text to be processed from the posted text information DB 8 (see FIG. 3) of the posted text information management center 3.

  Subsequently, in S23, the CPU 21 determines whether or not the corresponding posted sentence is a posted sentence in which information related to traffic is posted based on the sentence of the corresponding posted sentence read out in S22. Specifically, when a word related to traffic is included in the text of the corresponding posted text, it is determined that the corresponding posted text is a posted text in which information related to traffic is posted. In addition, as traffic-related words, for example, railway route names, route types, train vehicle names, station names, road names, road types, names of specific facilities such as interchanges and service areas, suspensions, traffic jams, and closures There is a word that shows the traffic situation.

  Then, when it is determined that the corresponding posted text is a posted text posting information related to traffic (S23: YES), the process proceeds to S25. On the other hand, when it is determined that the corresponding posted message is not a posted message in which information related to traffic is posted (S23: NO), the process proceeds to S24.

  In S24, the CPU 21 performs a facility position information correction process (FIG. 10) described later. The facility position information correction process is a process of correcting the posted position information associated with the corresponding posted text based on the facility data related to the facility among the map information stored in the map information DB 12. Thereafter, the corresponding posted text to be processed is changed, and the processes after S21 are executed again.

  In S25, the CPU 21 determines whether or not the corresponding posted text is a posted text in which information related to the railway is posted, based on the text of the corresponding posted text read in S22. Specifically, when a word related to railway is included in the sentence of the corresponding posted sentence, it is determined that the corresponding posted sentence is a posted sentence in which information related to the railway is posted. Examples of the railway-related word include a railway route name, a route type, a train vehicle name, a station name, a word indicating a railway traffic situation such as suspension or delay.

  And when it determines with the applicable contribution text being the contribution text which posted the information regarding a railway (S25: YES), it transfers to S26. On the other hand, when it is determined that the corresponding posted text is not a posted text that posted information on the railway (S25: NO), the process proceeds to S27.

  In S26, the CPU 21 performs a railroad position information correction process (FIG. 12) described later. The railway position information correction process is a process of correcting the posted position information associated with the corresponding posted text based on the route data related to the railway route in the map information stored in the map information DB 12. Thereafter, the corresponding posted text to be processed is changed, and the processes after S21 are executed again.

  In S <b> 27, the CPU 21 determines whether or not the corresponding posted text is a posted text in which information related to the road is posted based on the text of the corresponding posted text read in S <b> 22. Specifically, when a word related to a road is included in the sentence of the corresponding posted sentence, it is determined that the corresponding posted sentence is a posted sentence in which information related to the road is posted. Examples of the road-related word include a road name, a road type, a name of a specific facility such as an interchange or a service area, and a word indicating a traffic situation related to the road such as a traffic jam or a closed road.

  Then, when it is determined that the corresponding posted text is a posted text that posted information on the road (S27: YES), the process proceeds to S28. On the other hand, if it is determined that the corresponding posted text is not a posted text that posted information on the road (S27: NO), the posting position information associated with the corresponding posted text to be processed is not corrected, and the processing target The corresponding posted sentence is changed, and the processes after S21 are executed again.

  In S28, the CPU 21 performs a road position information correction process (FIG. 14) described later. The road position information correction process is a process of correcting the posted position information associated with the corresponding posted sentence based on the link data related to the road among the map information stored in the map information DB 12. Thereafter, the corresponding posted text to be processed is changed, and the processes after S21 are executed again. And after the process with respect to all applicable posting sentences is complete | finished, it transfers to S14.

  Next, the sub-process of the facility position information correction process executed in S24 will be described with reference to FIG. FIG. 10 is a flowchart of a sub-processing program for facility position information correction processing.

  First, in S31, the CPU 21 determines whether or not the corresponding posted message is a posted message in which information related to the facility is posted based on the corresponding posted message read in S22. Specifically, when a word related to a facility is included in the text of the corresponding posted text, it is determined that the posted text is a posted text in which information related to the facility is posted. Examples of the word related to the facility include a facility name, a product name, a service name, a word indicating a user's action at a facility such as shopping, rest, and meal.

  And when it determines with the said contribution text being the contribution text which posted the information regarding a facility (S31: YES), it transfers to S32. On the other hand, when it is determined that the corresponding posted message is not a posted message that posted information on the facility (S31: NO), the posting position information associated with the corresponding posted message to be processed is not corrected, and the processing target The corresponding posted sentence is changed, and the processes after S21 are executed again.

  Next, in S <b> 32, the CPU 21 determines whether or not the target facility to which the corresponding posted text has posted information can be identified based on the text of the corresponding posted text read in S <b> 22. Specifically, when a word related to a facility name is included in the sentence of the corresponding posted sentence, it is determined that the target facility to which the corresponding posted sentence has posted information can be specified.

  Then, when it is determined that the target facility to which the corresponding posted message has posted information can be specified (S32: YES), the process proceeds to S33. On the other hand, if it is determined that the target facility to which the corresponding posted message has posted information cannot be specified (S32: NO), the process proceeds to S34.

  In S33, the CPU 21 specifies the target facility to which the corresponding posted message has posted information based on the sentence of the corresponding posted message read in S22. Specifically, the facility whose name is included in the text of the posted text is specified as the facility to which the posted text posted information. Thereafter, the process proceeds to S37.

  On the other hand, in S34, the CPU 21 is specified by the posted position information based on the posted position information currently associated with the corresponding posted message to be processed acquired in S21 and the map information stored in the map information DB 12. A facility located within a predetermined distance (for example, within 100 m) from the position is searched.

  Subsequently, in S35, the CPU 21 determines whether or not there are a plurality of facilities within a predetermined distance from the position specified by the posting position information based on the search result in S34.

  When it is determined that there are a plurality of facilities within a predetermined distance from the position specified by the posting position information (S35: YES), the process proceeds to S36.

  On the other hand, when it is determined that only one facility exists within a predetermined distance from the position specified by the posting position information (S35: NO), the process proceeds to S33. In S <b> 33, the CPU 21 specifies the searched one facility as a target facility to which the corresponding posted text has posted information. Thereafter, the process proceeds to S37.

  In S <b> 36, the CPU 21 specifies the facility closest to the position specified by the posted position information among the searched facilities as the target facility to which the corresponding posted sentence has posted information. Thereafter, the process proceeds to S37.

  In S <b> 37, the CPU 21 determines the position specified by the posted position information based on the posted position information currently associated with the corresponding posted message to be processed acquired in S <b> 21 and the map information stored in the map information DB 12. It is determined whether or not it is located on the facility specified in S33 or S36.

  If it is determined that the position specified by the posting position information is located on the facility specified in S33 or S36 (S37: YES), the posting position information associated with the post message to be processed is displayed. The corresponding post to be processed is changed without correction, and the processes after S21 are executed again.

  On the other hand, when it is determined that the position specified by the posting position information is not located on the facility specified in S33 or S36 (S37: NO), the process proceeds to S38.

In S38, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so as to be located on the facility specified in S33 or S36. For example, as shown in FIG. 11, when the facility 91 is specified as the target facility to which the corresponding posted sentence has posted information, the position X specified by the post-correction posted position information is not on the facility 91. In this case, the posting position information is corrected so as to be located on the facility 91. Specifically, the corrected position X ′ is corrected so as to coincide with the coordinates indicating the position of the facility 91 in the facility data stored in the map information DB 12. In addition, as long as it is on the facility 91, it may be corrected to other position coordinates.
As a result, when the posted text information is displayed on the liquid crystal display 35 of the navigation device 6 as described above, a large error is not caused between the posted text information and the position of the poster when the posted text is actually posted. It becomes possible to indicate a more accurate position of the poster (see FIG. 7). Further, it is possible to prevent a contradiction between the text content of the displayed posted text and the position of the poster. Furthermore, it becomes possible for the user to easily grasp which facility the posted message is about which information is posted.

  In addition, when it is determined that there are a plurality of facilities within a predetermined distance from the position specified by the posted position information, a configuration that identifies the target facility to which the corresponding posted sentence has posted information in consideration of the genre of the facility Is desirable. Specifically, first, based on the text of the corresponding posted text read in S22, it is determined whether or not the text related to the facility genre is included in the text of the corresponding posted text. And if it is determined that it is included, the facility corresponding to the genre of the included facility is identified as the target facility to which the corresponding posted sentence posted information from among the plurality of candidate facilities To do. As a result, the posting position information can be corrected to a more accurate position in consideration of the word indicating the genre of the facility included in the posted sentence.

  Next, the sub-process of the railway position information correction process executed in S26 will be described with reference to FIG. FIG. 12 is a flowchart of a sub-processing program for railway position information correction processing.

  First, in S41, the CPU 21 determines, based on the text of the corresponding posted text read out in S22, whether the target railway line to which the corresponding posted text has posted information can be identified. Specifically, when a word related to a railway route name is included in the sentence of the corresponding posted sentence, it is determined that the target railway line to which the corresponding posted sentence has posted information can be specified.

  Then, when it is determined that the route of the target railway to which the corresponding posted sentence has posted information can be specified (S41: YES), the process proceeds to S42. On the other hand, if it is determined that the route of the target railway for which the corresponding posted message has posted information cannot be specified (S41: NO), the process proceeds to S45.

  In S <b> 42, the CPU 21 specifies the route of the target railway to which the corresponding posted text has posted information based on the text of the corresponding posted text read in S <b> 22. Specifically, the railway route whose name is included in the text of the posted text is specified as the railway line of the target to which the corresponding posted text has posted information. Thereafter, the process proceeds to S43.

  In S43, the CPU 21 determines the position specified by the posted position information based on the posted position information currently associated with the corresponding posted message to be processed acquired in S21 and the map information stored in the map information DB 12. It is determined whether or not the vehicle is located on the railway line specified in S42.

  If it is determined that the position specified by the posted position information is located on the railway route specified in S42 (S43: YES), the posted position information associated with the corresponding posted message to be processed is displayed. The corresponding post to be processed is changed without correction, and the processes after S21 are executed again.

  On the other hand, when it is determined that the position specified by the posted position information is not located on the railway line specified in S42 (S43: NO), the process proceeds to S44.

In S <b> 44, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so as to be located on the railway line specified in S <b> 42. Specifically, the correction is made so that it is located at the closest point on the railway line specified in S42 from the point specified by the post position information before correction. For example, as shown in FIG. 13, when the route 92 is specified as the route of the target railway for which the corresponding posted message has posted information, the position Y specified by the post location information before correction is on the route 92. If it is not, the posting position information is corrected so as to be located on the route 92 at the closest point from the position Y. Specifically, the corrected position Y ′ is corrected so as to coincide with the coordinates closest to the position Y in the coordinate group specifying the shape of the route 92 in the route data stored in the map information DB 12. Is done. If it is on the route 92, it may be corrected to other position coordinates.
As a result, when the posted text information is displayed on the liquid crystal display 35 of the navigation device 6 as described above, a large error is not caused between the posted text information and the position of the poster when the posted text is actually posted. It becomes possible to indicate a more accurate position of the poster (see FIG. 7). Further, it is possible to prevent a contradiction between the text content of the displayed posted text and the position of the poster. Furthermore, it becomes possible for the user to easily grasp which railroad route the posted message has posted.

  On the other hand, in S45, the CPU 21 is specified by the posted position information based on the posted position information currently associated with the corresponding posted message to be processed acquired in S21 and the map information stored in the map information DB 12. It is determined whether or not the position is on any railway line.

  If it is determined that the position specified by the posted position information is located on any railway line (S45: YES), the posted position information associated with the corresponding posted sentence to be processed is not corrected. The corresponding posted text to be processed is changed, and the processes after S21 are executed again.

  On the other hand, when it is determined that the position specified by the posted position information is not located on any railway line (S45: NO), the process proceeds to S46.

  In S <b> 46, the CPU 21 starts from the position specified by the posted position information based on the posted position information currently associated with the post message to be processed acquired in S <b> 21 and the map information stored in the map information DB 12. Search for a railway route within a predetermined distance (for example, within 100 m).

  Subsequently, in S47, based on the search result in S46, the CPU 21 determines whether or not there are a plurality of railway routes within a predetermined distance from the position specified by the posted position information.

  If it is determined that there are a plurality of railway lines within a predetermined distance from the position specified by the posting position information (S47: YES), the process proceeds to S49. On the other hand, when it is determined that only one rail line exists within a predetermined distance from the position specified by the posting position information (S47: NO), the process proceeds to S48.

  In S <b> 48, the CPU 21 specifies the searched railway line as the railway line of the target to which the corresponding posted message has posted information. Thereafter, the process proceeds to S44. In S <b> 44, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so as to be located on the railway line specified in S <b> 48. Details have already been described and will be omitted (see FIG. 13).

  On the other hand, in S49, the CPU 21 selects the railway route closest to the position specified by the posted position information from among the plurality of searched railway lines, and the target railway to which the corresponding posted message has posted the information. Specify as a route. Thereafter, the process proceeds to S44. In S <b> 44, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so that it is located on the railway line specified in S <b> 49. Details have already been described and will be omitted (see FIG. 13).

  In addition, when it is determined that there are a plurality of railway routes within a predetermined distance from the position specified by the posted position information, the route of the target railway to which the corresponding posted message has posted information is considered in consideration of the route type. It is desirable to have a specific configuration. Specifically, first, based on the text of the corresponding posted text read out in S22, it is determined whether or not the text of the corresponding posted text includes a word related to the railway route type. And if it is determined that it is included, the route of the railway corresponding to the included route type is selected from among a plurality of candidate rail routes, and the subject of the subject to which the corresponding posted message has posted information. Identified as a rail line. As a result, it is possible to correct the posted position information to a more accurate position in consideration of the word indicating the railway route type included in the posted text.

  Next, the sub-process of the road position information correction process executed in S28 will be described with reference to FIG. FIG. 14 is a flowchart of a sub-processing program for road position information correction processing.

  First, in S51, the CPU 21 determines whether or not the target road to which the corresponding posted sentence has posted information can be identified based on the sentence of the corresponding posted sentence read out in S22. Specifically, when a word related to a road name is included in the sentence of the corresponding posted sentence, it is determined that the target road to which the corresponding posted sentence has posted information can be specified.

  If it is determined that the target road to which the posted message has posted information can be identified (S51: YES), the process proceeds to S52. On the other hand, if it is determined that the target road to which the corresponding posted sentence has posted information cannot be specified (S51: NO), the process proceeds to S55.

  In S52, the CPU 21 specifies a target road on which the corresponding posted text has posted information based on the text of the corresponding posted text read in S22. Specifically, the road whose name is included in the text of the posted text is specified as the road to which the posted text posted information. Thereafter, the process proceeds to S53.

  In S53, the CPU 21 determines the position specified by the posted position information based on the posted position information currently associated with the corresponding posted message to be processed acquired in S21 and the map information stored in the map information DB 12. It is determined whether or not the vehicle is located on the road specified in S52.

  If it is determined that the position specified by the posting position information is located on the road specified in S52 (S53: YES), the posting position information associated with the corresponding posted sentence to be processed is corrected. First, the corresponding posted sentence to be processed is changed, and the processes after S21 are executed again.

  On the other hand, when it is determined that the position specified by the posting position information is not located on the road specified in S52 (S53: NO), the process proceeds to S54.

In S54, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so as to be located on the road specified in S52. Specifically, the correction is performed so that the position specified by the post position information before correction is located at the closest point on the road specified in S52. For example, as shown in FIG. 15, when the road 93 is specified as the target road for which the corresponding posted sentence has posted information, the position Y specified by the post-correction posted position information is not on the road 93. In such a case, the posting position information is corrected so as to be located on the road 93 and at a point closest to the position Z. Specifically, the corrected position Z ′ is a coordinate on the link indicating the road 93 in the link data stored in the map information DB 12 and is corrected so as to coincide with the closest coordinate to the position Z. Is done. Note that other position coordinates may be used as long as they are on the road 93.
As a result, when the posted text information is displayed on the liquid crystal display 35 of the navigation device 6 as described above, a large error is not caused between the posted text information and the position of the poster when the posted text is actually posted. It becomes possible to indicate a more accurate position of the poster (see FIG. 7). Further, it is possible to prevent a contradiction between the text content of the displayed posted text and the position of the poster. Furthermore, it becomes possible for the user to easily grasp which road information the posted message has posted.

  On the other hand, in S55, the CPU 21 is identified by the posted position information based on the posted position information currently associated with the corresponding posted message to be processed acquired in S21 and the map information stored in the map information DB 12. It is determined whether or not the position is on any road.

  If it is determined that the position specified by the posted position information is located on any road (S55: YES), the posted position information associated with the corresponding posted sentence to be processed is not corrected. The corresponding posted message to be the target is changed, and the processes after S21 are executed again.

  On the other hand, when it is determined that the position specified by the posting position information is not located on any road (S55: NO), the process proceeds to S56.

  In S56, the CPU 21 starts from the position specified by the posted position information based on the posted position information currently associated with the post message to be processed acquired in S21 and the map information stored in the map information DB 12. Search for a road within a predetermined distance (for example, within 100 m).

  Subsequently, in S57, the CPU 21 determines whether or not there are a plurality of roads within a predetermined distance from the position specified by the posted position information, based on the search result of S56.

  If it is determined that there are a plurality of roads within a predetermined distance from the position specified by the posting position information (S57: YES), the process proceeds to S59. On the other hand, when it is determined that only one road exists within a predetermined distance from the position specified by the posting position information (S57: NO), the process proceeds to S58.

  In S <b> 58, the CPU 21 identifies the searched one road as a target road on which the corresponding posted text has posted information. Thereafter, the process proceeds to S54. In S54, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so that it is located on the road specified in S58. Details have already been described and will be omitted (see FIG. 15).

  On the other hand, in S <b> 59, the CPU 21 specifies the road closest to the position specified by the posted position information from among the searched roads as the target road on which the corresponding posted sentence has posted information. Thereafter, the process proceeds to S54. In S <b> 54, the CPU 21 corrects the posting position information associated with the corresponding posted text to be processed so as to be located on the road specified in S <b> 59. Details have already been described and will be omitted (see FIG. 15).

  In addition, when it is determined that there are a plurality of roads within a predetermined distance from the position specified by the posted position information, the corresponding posted sentence specifies the target road to which the information is posted in consideration of the road type. It is desirable to do. Specifically, first, based on the sentence of the corresponding posted sentence read out in S22, it is determined whether or not a word related to the road type is included in the sentence of the corresponding posted sentence. If it is determined that it is included, the road corresponding to the included road type is identified as a target road from which the corresponding posted sentence has posted information from among a plurality of candidate roads. . As a result, the posting position information can be corrected to a more accurate position in consideration of the word indicating the road type included in the posted sentence.

As described above in detail, in the posted text providing system 1 according to the present embodiment, the posted text providing method by the posted text providing system 1 and the computer program executed in the posted text providing system 1, a request for browsing the posted text from the vehicle 5. If there is a search condition, the search condition is acquired from the vehicle 5 requested to be browsed (S11), and the corresponding post sentence that is a post sentence corresponding to the acquired search condition from the post sentence posted on the computer network Is extracted (S12), the post position information associated with the post is corrected based on the content of the post (S13), and the post is extracted based on the post position information after the correction. (S14), in the case of associating position information with a posted sentence posted on a computer network, the position associated with the posted sentence Even if the error occurs in the broadcast, it is possible to correct the error along the text of the posted message. For example, in the case where the posted person's position when the posted sentence is posted as in the present embodiment, it is stored in association with the posted person's position and the posted sentence when the posted sentence is actually posted. Thus, it is possible to prevent a large error from occurring between the position and the position.
In addition, since the posting position information associated with the corresponding posted text is provided together with the text of the corresponding posted text extracted based on the search condition, a contradiction occurs between the text content of the provided posted text and the position of the poster. Can be prevented. Furthermore, it becomes possible for the user to easily grasp which post the information about which subject is posted.
In addition, when the posted sentence includes a word related to the road, the position specified by the posted position information associated with the posted sentence is corrected so as to be on the road. The posted position information can be corrected to a more correct position along the sentence of the posted sentence. In addition, it is possible for the user to easily grasp which road information the posted message has posted.
In addition, when a word related to a road is included in the posted sentence, the position specified by the posted position information associated with the posted sentence is corrected to be a point on the road closest to the position. Therefore, it is possible to correct the posting position information associated with the posted sentence to a more correct position along the sentence of the posted sentence with the minimum correction.
In addition, when the posted sentence includes a word related to the road type or road name, the position specified by the posted position information associated with the posted sentence is displayed on the road corresponding to the road type or road name. Since it correct | amends so that it may become a point, it becomes possible to correct | amend the contribution position information linked | related with the said contribution sentence to the more correct position along the sentence of a contribution sentence. In particular, even in an area where roads are dense, it is possible to correct the posted position information associated with the posted text to the correct position by considering the road type and the road name.
In addition, if the posted sentence contains a word related to the railway, the position specified by the posted position information associated with the posted sentence is corrected so that it is on the route. The posted position information can be corrected to a more correct position along the sentence of the posted sentence. In addition, it is possible for the user to easily grasp which railroad route the posted message has posted.
In addition, if the posted sentence contains a word related to the railway, the position specified by the posted position information associated with the posted sentence is corrected to be a point on the route closest to the position. Therefore, it is possible to correct the posting position information associated with the posted sentence to a more correct position along the sentence of the posted sentence with the minimum correction.
In addition, when the posted sentence includes a word related to the route type or route name, the position specified by the posted position information associated with the posted sentence is displayed on the route corresponding to the route type or route name. Since it correct | amends so that it may become a point, it becomes possible to correct | amend the contribution position information linked | related with the said contribution sentence to the more correct position along the sentence of a contribution sentence. In particular, even in an area where routes are densely populated, it is possible to correct the posted position information associated with the posted text to the correct position by considering the route type and route name.
In addition, when the posted sentence includes a word related to the facility, the position specified by the posted position information associated with the posted sentence is corrected so that it is on the facility. The posted position information can be corrected to a more correct position along the sentence of the posted sentence. In addition, it is possible for the user to easily grasp which facility the posted message is about which information is posted.
In addition, when a word related to a facility is included in the posted sentence, the position specified by the posted position information associated with the posted sentence is corrected to be a point on the facility closest to the position. Therefore, it is possible to correct the posting position information associated with the posted sentence to a more correct position along the sentence of the posted sentence with the minimum correction.
In addition, when a word related to the facility name or facility genre is included in the posted sentence, the position specified by the posted position information associated with the posted sentence is determined on the facility corresponding to the facility name or the facility genre. Since it correct | amends so that it may become a point, it becomes possible to correct | amend the contribution position information linked | related with the said contribution sentence to the more correct position along the sentence of a contribution sentence. In particular, even in an area where facilities are densely populated, it is possible to correct the posted position information associated with the posted text to the correct position by considering the facility name and the facility genre.

Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.
For example, in the present embodiment, the posted text search center 2 executes the processes of S11 to S14 of the posted text search processing program (FIG. 5), but the posted text information management center 3 and the navigation device 6 are partly or entirely. It is good also as a structure which performs the process of. For example, if the posted text information management center 3 is configured to execute the processes of S11 to S14, the posted text search center 2 becomes unnecessary. Further, instead of the navigation device 6, a communication terminal such as a mobile phone, a PDA, or a smartphone may be used.

  In this embodiment, the post position information associated with the corresponding post sentence that is the post sentence corresponding to the search condition is corrected. However, the post position information associated with the post sentence other than the corresponding post sentence is corrected. It is good also as composition to do. For example, if it is set as the structure which correct | amends the contribution position information linked | related with each contribution sentence used as search object in the contribution sentence search process of said S12, the contribution posted on the computer network based on the corrected contribution position information It is also possible to adopt a configuration in which the corresponding posted sentence is extracted from the sentence. At that time, if the posting position information (that is, the position of the contributor who posted the posted text) is used as a search condition, it is possible to more accurately extract the posted text corresponding to the search condition. As a result, it is possible to appropriately provide a post message required by the user.

  In this embodiment, position information (post position information) indicating the position of the poster when the post is posted is used as the position information associated with the post, but other position information is associated. May be. In addition, as the location information, administrative divisions, link numbers, facility IDs, and the like may be associated instead of location coordinates.

  In the present embodiment, the posted text information management center 3 stores the posted text as information about the posted text, the posting time when the posted text is posted, the posting position information, the poster ID, and the like. However, only the text of the posted text and the posted position information may be stored.

1 Posting text providing system 2 Posting text search center 3 Posting text information management center 5 Vehicle 6 Navigation device

Claims (15)

A posted message information acquisition means for acquiring a posted message posted on a computer network together with position information associated with the posted message;
Position information correcting means for correcting the position information associated with the posted text based on the content of the posted text acquired by the posted text information acquiring means;
Search condition acquisition means for acquiring search conditions for the posted text;
Search means for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring means from the posted sentence posted on the computer network;
And a providing means for providing the corresponding posted text extracted by the search means based on the position information corrected by the position information correcting means.   2. The posted text providing system according to claim 1, wherein the providing means provides the position information associated with the corresponding posted text together with the text of the corresponding posted text extracted by the search means.   The said search means extracts the said corresponding posting text from the said posting text posted on the computer network based on the said positional information corrected by the said positional information correction means. 2. The posted text providing system according to 2.   The position information correcting unit is configured such that, when the posted sentence acquired by the posted sentence information acquiring unit includes a word related to a road, the position specified by the position information is positioned on the road. The posted message providing system according to any one of claims 1 to 3, wherein the posted message providing system is corrected.   The position information correcting unit, when the posted sentence acquired by the posted sentence information acquiring unit includes a word related to a road, a road whose position specified by the position information is closest to the position The posted message providing system according to claim 4, wherein correction is made so that the upper point is located.   In the case where the posted text acquired by the posted text information acquiring means includes a word relating to a road type or a road name, the position information correcting unit is configured to display the position specified by the positional information as the road type or 6. The posted text providing system according to claim 4, wherein correction is made so as to be located on a road corresponding to the road name.   The position information correcting unit is configured such that the position specified by the position information is located on a route when a word related to a railway is included in the posted message acquired by the posted message information acquiring unit. The posted message providing system according to any one of claims 1 to 3, wherein the posted message providing system is corrected.   In the case where the posted text acquired by the posted text information acquiring means includes a word related to a railroad, the position information correcting unit is a route whose position specified by the positional information is closest to the position. The posted text providing system according to claim 7, wherein correction is made so as to be an upper point.   The position information correction means, when the post sentence acquired by the post sentence information acquisition means includes a word related to a route type or route name, the position specified by the position information is the route type or The posted message providing system according to claim 7 or 8, wherein correction is made so as to be positioned on a route corresponding to the route name.   The position information correcting unit is configured such that, when the posted sentence acquired by the posted sentence information acquiring unit includes a word related to a facility, the position specified by the position information is positioned on the facility. The posted message providing system according to any one of claims 1 to 3, wherein the posted message providing system is corrected.   The location information correcting means, when the posted text acquired by the posted text information acquiring means includes a word related to a facility, the location specified by the location information is closest to the location The posted message providing system according to claim 10, wherein correction is made so as to be an upper point.   The position information correction means, when the post sentence acquired by the post sentence information acquisition means includes a word related to the genre or facility name of the facility, the position specified by the position information The posted sentence providing system according to claim 10 or 11, wherein correction is made so as to be located on a facility corresponding to a genre or the facility name. A posted message information acquisition means for acquiring a posted message posted on a computer network together with position information associated with the posted message;
Position information correcting means for correcting the position information associated with the posted text based on the content of the posted text acquired by the posted text information acquiring means;
Search condition acquisition means for acquiring search conditions for the posted text;
Search means for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring means from the posted sentence posted on the computer network;
And a providing means for providing the corresponding posted text extracted by the search means based on the position information corrected by the position information correcting means. A posted message information acquisition step for acquiring a posted message posted on a computer network together with position information associated with the posted message;
A position information correcting step for correcting the position information associated with the posted text based on the content of the posted text acquired by the posted text information acquiring step;
A search condition acquisition step of acquiring a search condition of the posted sentence;
A search step for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring step from the posted sentence posted on the computer network;
A providing step of providing the corresponding posted message extracted by the search step based on the position information corrected by the position information correcting step. On the computer,
A posted message information acquisition function for acquiring a posted message posted on a computer network together with position information associated with the posted message;
A position information correction function for correcting the position information associated with the posted text based on the content of the posted text acquired by the posted text information acquiring function;
A search condition acquisition function for acquiring a search condition of the posted sentence;
A search function for extracting a corresponding posted sentence that is a posted sentence corresponding to the search condition acquired by the search condition acquiring function from the posted sentence posted on the computer network;
A providing function for providing the corresponding post extracted by the search function based on the position information corrected by the position information correcting function;
A computer program for executing

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