JP5978971B2 - Posted sentence search system, posted sentence search apparatus, posted sentence search method, and computer program - Google Patents

Description

  The present invention relates to a posted text search system, a posted text search device, a posted text search method, and a computer program for searching for 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, as a means for searching for information necessary for the user from a large number of information, for example, in Japanese Patent Application Laid-Open No. 2007-327774, when a planned travel route is set in the navigation device, the planned travel route is received from the received radio sound. A technique for extracting radio sound including the name of the upper point has been proposed.

JP 2007-327774 A (page 6-7, FIG. 3)

  However, since the planned travel route is specified not as a character string but as position information made up of numerical values (for example, latitude and longitude), the posted text such as SNS to be searched is composed of a character string. When performing a search, even if you are trying to extract only posted texts on which the information required by the user has been posted, the corresponding posted text will be selected from among the large number of posted texts posted on the computer network. It was difficult to extract only properly. In other words, there may be cases where a posted text in which content not related to the planned travel route is posted, a posted text in which content that is not required by the user even if related to the planned travel route is extracted, On the other hand, in some cases, it is not possible to extract a posted sentence on which information required by a user related to the planned travel route is posted.

  The present invention has been made in order to solve the above-mentioned conventional problems, and by using traffic information made up of character strings, information required by the user can be obtained from posted text posted on a computer network. It is an object of the present invention to provide a posted text search system, a posted text search device, a posted text search method, and a computer program that can appropriately extract only posted text.

In order to achieve the above object, the posted text search system (1) according to claim 1 of the present application includes a traffic information acquisition means (11) for acquiring traffic information consisting of character strings, and a position where the user's planned travel route is a numerical value Travel planned route acquisition means (11) acquired as information, point information acquisition means (11) for acquiring point information (25) in which a name and position information are associated with each point, and position information of the planned travel route Point name acquisition means (11) for acquiring the name of the point included in the scheduled travel route based on the point information and the point information, and the character string of the name of the point acquired by the point name acquisition means , A search target point name acquisition means (11) for acquiring, as a search target point name, a character string of the name of a point determined to match the character string included in the traffic information, and the search target point name Search condition setting means (11) for setting the search target point name acquired by the acquisition means as a search word, and the search set by the search condition setting means from among posted sentences posted on a computer network and search means for extracting the posted messages corresponding to a word (11), have a, the traffic information, if the information with respect to the point on the road, comprises a string name of該地point, for road sections If it is information, the point name includes a start point character string that is a character string of the name of the point corresponding to the start point of the section, and an end point character string that is a character string of the name of the point corresponding to the end point of the section When the character string of the point name that matches the start point character string and the character string of the point name that matches the end point character string are included in the character string of the point name acquired by the acquisition unit Of the character string of the name of the point acquired by the point name acquisition means, it is determined that the name matches the end character string along the planned travel route from the point determined to match the name with the start point character string. It has the 1st additional acquisition means (11) which acquires additionally the character string of the name of the point contained by the last point as said search object point name .
Note that “match with a character string” includes not only the case of a complete match but also the case of a partial match (the claims are the same).

In addition, the posted text search system (1) according to claim 2 includes a traffic information acquisition means (11) for acquiring traffic information consisting of character strings , and a travel schedule for acquiring the user's planned travel route as position information consisting of numerical values. The route acquisition means (11), the point information acquisition means (11) for acquiring the point information (25) in which the name and the position information are associated with each point, the position information of the planned travel route, and the point information Based on the point name acquisition means (11) for acquiring the name of the point included in the planned travel route based on the character string, and the planned travel route among the character string of the name of the point acquired by the point name acquisition means, Search target spot name acquisition means (11) for acquiring, as a search target spot name, a character string of a name of a spot included in a range where the section to be the target of the traffic information overlaps, and the search target spot name Search condition setting means (11) for setting the search target point name acquired by the acquisition means as a search word, and the search set by the search condition setting means from among posted sentences posted on a computer network Search means (11) for extracting a posted sentence corresponding to the word.

The posted text search system (1) according to claim 3 includes a traffic information acquisition means (11) for acquiring traffic information composed of character strings , and a travel schedule for acquiring a user's planned travel route as position information composed of numerical values. The route acquisition means (11), the point information acquisition means (11) for acquiring the point information (25) in which the name and the position information are associated with each point, the position information of the planned travel route, and the point information Based on the point name acquisition means (11) for acquiring the name of the point included in the planned travel route based on the character string, and included in the traffic information among the character string of the name of the point acquired by the point name acquisition means The search target spot name acquisition means (11) for acquiring the character string of the name of the spot determined to match the character string to be searched as the search target spot name, and the search target spot name acquisition means. Search condition setting means (11) for setting the search target point name as a search word, and a posted sentence corresponding to the search word set by the search condition setting means from among posted sentences posted on a computer network Search means (11) for extracting, if the traffic information is information on a point on the road, the traffic information includes a character string of the name of the point and is information on a section of the road, A start point character string that is a character string of a point name corresponding to the start point of the section and an end point character string that is a character string of a point name corresponding to the end point of the section, and acquired by the point name acquisition unit When the character string of the point name includes the character string of the point name that matches one of the start point character string and the end point character string, but does not include the character string of the point name that matches the other Before Of the character string of the name of the point acquired by the point name acquisition means, the planned travel route passes along the planned travel route from the point where the name is determined to match the start point character string or the end point character string. It has the 2nd additional acquisition means (11) which additionally acquires the character string of the name of the point contained by the point where the name regarding a road changes as said search object point name .

Further, the posted text search system (1) according to claim 4 is the posted text search system according to claim 3 , wherein the second additional acquisition means (11) includes the point name acquisition means (11). When the character string of the name of the point that matches the start point character string and the character string of the name of the point that matches the end point character string are not included in the character string of the name of the acquired point, the point Among the character strings of the names of the points acquired by the name acquisition means, the names related to the roads on the planned travel route change along the traveling direction of the planned travel route from the point determined to match the start point character string. a string point name included in to the point, and wherein the benzalkonium add obtained as the searched location name.

Further, the posted text search system (1) according to claim 5 is the posted text search system according to claim 3 , wherein the second additional acquisition means (11) is provided by the spot name acquisition means (11). When the character string of the name of the point that matches the end point character string and the character string of the name of the point that matches the start point character string are not included in the character string of the name of the acquired point, the point Among the character strings of the names of the points acquired by the name acquisition means , the roads on the planned travel route along the direction opposite to the travel direction of the planned travel route from the point determined to match the end point character string a string point name included in to the point where the name is changed, and wherein the benzalkonium add obtained as the searched location name.

Further, the posted text search device (2) according to claim 6 has a traffic information acquisition means (11) for acquiring traffic information consisting of character strings, and a travel schedule for acquiring the user's planned travel route as position information consisting of numerical values. The route acquisition means (11), the point information acquisition means (11) for acquiring the point information (25) in which the name and the position information are associated with each point, the position information of the planned travel route, and the point information Based on the point name acquisition means (11) for acquiring the name of the point included in the planned travel route based on the character string, and the planned travel route among the character string of the name of the point acquired by the point name acquisition means , a string name of a point where a section of interest of the traffic information is included in the range that overlaps, searched location names acquisition means for acquiring as a search target location names (11), the search target location name acquisition A search condition setting means (11) for setting the search target spot name acquired by the stage as a search word, and the search word set by the search condition setting means from among posted sentences posted on a computer network Search means (11) for extracting a posted sentence corresponding to the above.

The posted sentence search method according to claim 7 includes a traffic information acquisition step for acquiring traffic information consisting of character strings, a planned travel route acquisition step for acquiring a user's planned travel route as position information consisting of numerical values, A point information acquisition step for acquiring point information (25) in which a name and position information are associated with each other, and the names of points included in the planned travel route based on the positional information and the point information of the planned travel route In the range where the planned route and the target section of the traffic information overlap among the character string of the point name acquired by the character string and the name of the point acquired by the point name acquiring step a string point name to be a search target location names acquiring as a search target location name, acquired by the search object location name acquisition step A search condition setting step for setting the search target point name as a search word and a posted sentence corresponding to the search word set by the search condition setting step are extracted from the posted sentences posted on the computer network. And a search step.

Furthermore, the computer program according to claim 8 is a computer, a traffic information acquisition function for acquiring traffic information consisting of character strings, and a planned travel route acquisition function for acquiring a user's planned travel route as position information consisting of numerical values, Based on the location information acquisition function for acquiring location information (25) in which the name and location information are associated with each location, and the location information of the planned travel route and the location information, the points included in the planned travel route In the range where the point name acquisition function for acquiring the name by a character string and the character string of the name of the point acquired by the point name acquisition function overlap the planned travel route and the target section of the traffic information a string point name included, the search target location names obtaining function for obtaining a search target location names, before being acquired by the search target location name acquisition function A search condition setting function for setting a search target point name as a search word, and a search for extracting a posted sentence corresponding to the search word set by the search condition setting function from among posted sentences posted on a computer network And a function.

  In the posted text search system according to claim 1 having the above-described configuration, the name of the point included in the user's scheduled travel route is acquired as a character string, and the character string of the name of the point that matches the character string included in the traffic information Is set as the search word, and the posted text that includes the set search word is searched from the posted text posted on the computer network, so the user is required from the posted text posted on the computer network. It is possible to appropriately extract only the posted text on which the information is posted. As a result, information related to the user's planned travel route (for example, traffic jams, accidents, etc. on the planned travel route) can be grasped at a faster timing via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.

In the posted text search system according to claim 1 , when the traffic information is information on a point on the road, the traffic information includes a character string of the name of the point, and when the information is information on a road section, Since it includes a start point character string that is a character string of a point name corresponding to the start point of the section and an end point character string that is a character string of a point name corresponding to the end point of the section, the type of traffic information (traffic to the point It is possible to appropriately set a search word according to information or traffic information for a section.

In the posted text search system according to claim 1 , the character string of the point name included in the user's scheduled travel route includes the character string of the point name that matches the start point character string, and the end point character string; When the character string of the name of the matching point is included, the points included from the point where the name is matched with the start point character string to the point where the name is matched with the end point character string along the planned travel route Since the name string is additionally acquired as the search target point name, even if it is traffic information specifying only the start point and end point of the target section, the names of other points in the section are also set in the search word It becomes possible. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.

Further, the posted message search system according to claim 2, pairs even traffic information identified only start and end points of the elephant section, for the other points of the names that overlap with the section traveling scheduled route be in the The search word can be set. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.

Further, in the posted text search system according to claim 3, even if the traffic information specifies only the start point and the end point of the target section, the name of another point in the section that overlaps the planned travel route is also searched. It can be set to word. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.
In the posted text search system according to claim 4, the character string of the point name included in the travel route of the user includes the character string of the point name that matches the start point character string, and the end point character string, From the point where the name matches the starting point character string to the point where the name on the road through which the planned travel route passes changes from the point determined to match the name of the starting point character string, if the matching point name character string is not included Since the character string of the name of the included point is additionally acquired as the search target point name, traffic information that specifies only the start point and end point of the target section is duplicated with the planned travel route within that section The name of the point can also be set as a search word. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.
In the posted text search system according to claim 5, the character string of the point name included in the travel route of the user includes the character string of the point name that matches the end point character string, When the character string of the name of the matching point is not included, the name related to the road through which the planned travel route passes changes from the point determined to match the end point character string to the traveling direction of the planned travel route. Since the character string of the name of the point included up to the point is additionally acquired as the search target point name, even if it is traffic information specifying only the start point and end point of the target section, It is possible to set the name of another overlapping point as a search word. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.

  In the posted text search device according to claim 6, the name of the point included in the planned travel route of the user is acquired as a character string, and the character string of the name of the point that matches the character string included in the traffic information is searched. Because it searches the posted text that includes the set search word from the posted text set in the word and posted on the computer network, the user needs from the posted text posted on the computer network It is possible to appropriately extract only a posted sentence on which information is posted. As a result, information related to the user's planned travel route (for example, traffic jams, accidents, etc. on the planned travel route) can be grasped at a faster timing via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.

  In the posted text search method according to claim 7, the name of the point included in the user's scheduled travel route is acquired as a character string, and the character string of the name of the point that matches the character string included in the traffic information is searched. Because it searches the posted text that includes the set search word from the posted text set in the word and posted on the computer network, the user needs from the posted text posted on the computer network It is possible to appropriately extract only a posted sentence on which information is posted. As a result, information related to the user's planned travel route (for example, traffic jams, accidents, etc. on the planned travel route) can be grasped at a faster timing via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.

  Furthermore, in the computer program according to claim 8, the name of the point included in the user's scheduled travel route is acquired as a character string, and the character string of the name of the point that matches the character string included in the traffic information is used as a search word. Because it is set, and the posted text including the set search word is searched from the posted text posted on the computer network, the information required by the user is retrieved from the posted text posted on the computer network. It is possible to appropriately extract only posted texts. As a result, information related to the user's planned travel route (for example, traffic jams, accidents, etc. on the planned travel route) can be grasped at a faster timing via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.

1 is a schematic configuration diagram illustrating a posted text search system according to the present embodiment. It is the block diagram which showed the structure of the posting text search 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 the figure which showed an example of the traffic information memorize | stored in traffic information DB of a traffic information center. It is the figure which showed an example of the point information contained in map information. It is a block diagram which shows typically the control system of the communication terminal 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 contribution text guidance screen displayed on a display. It is a flowchart of the sub process program of the search word setting process which concerns on this embodiment. It is a figure explaining the point search process around a guidance route. It is a figure explaining the acquisition process of the character string of the name of the point on a guidance route. It is the figure which showed the specific example of the setting process of a search word. It is the figure which showed the specific example of the setting process of a search word. It is the figure which showed the specific example of the setting process of a search word. It is the figure which showed the specific example of the setting process of a search word.

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

  As shown in FIG. 1, a posted message search system 1 according to the present embodiment includes a posted message search server (post message search device) 3 included in the posted message management center 2, and posted message information included in the posted message management center 2. It is basically composed of a management server 4, a traffic information center 5, and a communication terminal 7 owned by a user 6. The communication terminal 7 includes a navigation device as a vehicle-mounted device mounted on a vehicle, a mobile phone, a PDA, a tablet terminal, a smartphone, and the like. Further, the user 6 may be moving by a moving means other than the vehicle (for example, a train, a bicycle, a walk, etc.) or may be in a state of not moving. The posted text management center 2, the traffic information center 5, and the communication terminal 7 are configured to be able to transmit / receive electronic data to / from each other via the communication network 8.

  Here, when the user 6 of the communication terminal 7 requests browsing of the posted message posted on the computer network, the posted message search server 3 receives the traffic information acquired from the travel route of the user 6 or the traffic information center 5. The search condition is set based on the post message, and the post message that posts the content related to the user 6 who has requested the information is extracted from the post message stored in the post message information management server 4, and the extracted post message is extracted. This is a server device that enables the user 6 to view the contents of the posted text by distributing information on the communication terminal 7. Details of the posted text search server 3 will be described later.

  The posted text information management server 4 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. It is a server device that stores and provides. In addition to the communication terminal 7, posting of posted messages by the user can be performed from a PC or other communication device that can be connected to a computer network.

  The posted text information management server 4 has a posted text information DB 9 as a storage medium, and posted posted texts are sequentially stored in the posted text information DB 9. The posted text information DB 9 includes a posted text (a character string), a posting time when the posted text is posted, a position of a poster when the posted text is posted (hereinafter referred to as a posted position), The contributor's ID is also stored. Here, FIG. 3 is a diagram showing an example of posted texts collected and provided in the posted text information management server 4. As shown in FIG. 3, the posted text includes a posting time, a posting position, a user ID, a text of the posted text, and the like. In addition, in the posted message information management server 4, information related to posted messages posted by users from all over the country is cumulatively stored in the posted message information DB 9, and when the amount of stored data exceeds a predetermined amount, the posted message information management server 4 The information is deleted in order. The posted message information management server 4 may be installed in a center different from the posted message management center 2.

  The traffic information center 5 is a center that collects and provides current traffic information on each road in Japan. For example, the traffic information center 5 corresponds to a VICS (registered trademark) center. The traffic information center 5 has a traffic information DB 10 as a storage medium, and the collected traffic information is stored in the traffic information DB 10. In addition, the traffic information specifically collected includes traffic information indicating the degree of traffic congestion on the road, traffic information indicating road closure, lane control, chain control, etc., accident information indicating information on accidents, and broken vehicles. There is a breakdown car information about.

  Further, when providing traffic information from the traffic information center 5, the same information is provided in a plurality of information forms such as sentences and images. For example, in the VICS information, traffic information is provided by three types of information levels 1 to 3, and the level 3 information is map display information for specifying traffic information such as a traffic jam section and an accident point on the map. The information is simple graphic information that specifies the shape of the road on which the user is currently traveling, the time required to reach the traffic congestion section and the main point with simple graphics, and the level 1 information is traffic information such as the traffic congestion section and the accident point. Is character string information that specifies a character string within a predetermined number (for example, 30 characters). As a result, the user can grasp the surrounding traffic situation by referring to the provided map image, figure, character string, and the like.

  Here, FIG. 4 is a diagram showing an example of character string information of level 1 in particular as the traffic information provided from the traffic information center 5. As shown in FIG. 4, level 1 traffic information is composed of character strings, and traffic conditions for road sections with the same name (for example, Tomei Expressway, Shin-Tomei Expressway, Chuo Expressway, etc.) or points on the road ( For example, it consists of character strings that specify traffic jams, lane restrictions, and closed roads. Specifically, “road name (including road type)”, “traveling direction (up or down)”, “target road section (section is a point corresponding to the start point (IC, SA, tunnel, bus stop, etc.) ) And the name of the point corresponding to the end point) or “the name of the point on the road” and “the event occurring in the target section or point”. The traffic information is collected at the traffic information center 5 periodically, and the traffic information stored in the traffic information DB 10 is updated as appropriate based on the collected latest traffic information.

  On the other hand, the communication terminal 7 is an information communication terminal having a function for specifying the current position of the communication terminal 7 such as GPS (that is, the current position of the user 6) and a map image around the current position of the user 6. For example, a navigation device, a mobile phone, a PDA, a tablet terminal, a smartphone, and the like are applicable.

  The communication terminal 7 is connected to the communication network 8 via a transmission / reception circuit unit (RF) 33 described later, and is configured to be capable of bidirectional communication with the posted message management center 2. And when the information regarding the posted text is received from the posted text management center 2, the text content of the received posted text is displayed on the display of the communication terminal 7 as described later, and the content of the posted text can be viewed by the user. (See FIG. 8). Details of the communication terminal 7 will be described later.

The communication network 8 includes a large number of base stations arranged in various parts of the country and a communication company that manages and controls each base station. The base station and the communication company are connected to each other by wire (optical fiber, ISDN, etc.) or wirelessly. It is configured by connecting.
Here, the base station has a transceiver (transmitter / receiver) for communicating with the communication terminal 7 and an antenna. The base station performs wireless communication between the communication companies, and at the end of the communication network 8 and communicates with the communication terminal 7 within the range (cell) within which the radio waves of the base station can reach. Have the role of relaying.

  Next, the configuration of the posted text search server 3 constituting the posted text search system 1 will be described in more detail with reference to FIG. As shown in FIG. 2, the posted text search server 3 basically includes an information management ECU 11, a map information DB 12 as information recording means connected to the information management ECU 11, and a center communication device 13.

  The information management ECU 11 is an electronic control unit that performs various controls in the posted text search server 3 as shown in FIG. The CPU 21 as an arithmetic device and a 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 search processing program (FIG. 7) described later are stored. In addition, an internal storage device such as a ROM 23 is provided. The information management ECU 11 constitutes various means as processing algorithms together with the ECU of the communication terminal 7. For example, traffic information acquisition means acquires traffic information consisting of character strings. The planned travel route acquisition unit acquires the planned travel route of the user 6 as position information including numerical values. A point information acquisition means acquires the point information which matched the name and position information for every point. The point name acquisition means acquires the name of the point included in the planned travel route based on the position information and the point information of the planned travel route as a character string. The search target spot name acquisition means converts the character string of the name of the spot determined to match the character string included in the traffic information from the character string of the spot name acquired by the spot name acquisition means. Get as. The search condition setting means sets the search target spot name acquired by the search target spot name acquiring means to the search word. The search means extracts a posted sentence corresponding to the search word set by the search condition setting means from the posted sentences posted on the computer network. The first additional acquisition means is an end point along a planned travel route from a point where the name of the point name character string acquired by the point name acquisition means matches the character string of the name of the starting point. The character string of the name of the point included by the point where it was determined that the character string of the name of the point to become the name matches is additionally acquired as the search target point name. The second additional acquisition unit is configured to change the traveling direction of the planned travel route from a point where the name matches the character string of the name of the point that is the starting point among the character string of the point name acquired by the point name acquisition unit. The character string of the name of the point included by the point where a road name changes along is additionally acquired as a search object point name. The third additional acquisition unit is configured to change the traveling direction of the planned travel route from a point where the name matches the character string of the name of the end point among the character strings of the point names acquired by the point name acquisition unit. The character string of the name of the point included by the point where the road name changes along the reverse direction is additionally acquired as the search target point name.

  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, point information 25 regarding points such as facilities, intersection data regarding each intersection, search data for searching for a route, search data for searching for a point, map display data for displaying a map, and the like. . The map information DB 12 is periodically updated to new map information.

  Here, the point information 25 is a general facility such as a convenience store or a gas station, as well as a point (for example, IC, SA, PA, JCT, tunnel, bus stop, toll booth, bridge, etc.) are stored. The point information 25 is information in which a point name and position information (latitude and longitude) are associated with each other.

  Here, FIG. 5 is a diagram showing an example of the spot information 25. FIG. 5 shows point information regarding a point located on the Tomei Expressway. As shown in FIG. 5, the point information 25 includes the road name of the road where the point is located, the traveling direction of the road, the type (genre) of the point, the point name, the search character string, and the position of the point. The location information (latitude and longitude) to be specified is included. Here, the search character string is a character string that serves as a search word for searching for a posted message related to the user 6 among the posted messages stored in the posted message information management server 4 as described later. Specifically, it consists of a character string in which a portion other than the unique name of the point such as IC or SA is removed from the point name, and an abbreviated name such as BS is corrected to a name that is not omitted. And information management ECU11 specifies the character string of the point name of the point on a user's 6 driving | running | working driving | running route | route as mentioned later by the point information 25, and also the character string of the specified point name is traffic information (FIG. 4). ) Is set as a search word, the search character string of the point determined to match the name is determined.

  The map information DB 12 is not included in the posted text search server 3 but may be configured in an external server, and the posted text search server 3 may acquire the point information 25 by communication from the external server.

  The center communication device 13 is a communication device for communicating with the traffic information center 5 and the communication terminal 7 via the communication network 8. In the present embodiment, traffic information and information related to posted text are transmitted / received to / from the traffic information center 5 and the communication terminal 7 via the center communication device 13.

  Next, a schematic configuration of the communication terminal 7 owned by the user 6 will be described with reference to FIG. FIG. 6 is a block diagram schematically showing a control system of the communication terminal 7 according to the present embodiment.

  As shown in FIG. 6, the communication terminal 7 has a data bus BUS, a CPU 31, a memory 32 storing user information (user ID, name, etc.), map information, etc. regarding the user 6 who owns the communication terminal 7, a communication network A transmission / reception circuit unit (RF) 33 that transmits / receives a signal to / from a base station of the network 8, converts an RF (Radio Frequency) signal received by the transmission / reception circuit unit 33 into a baseband signal, and converts the baseband signal into an RF signal A baseband processing unit 34 for converting to an input / output unit 37, an input / output unit 37 that is an interface with a microphone 35, a speaker 36, and the like, a display 38 configured with a liquid crystal display panel, and an input operation unit configured with a touch panel, a keyboard, and the like 39 and the GPS 40 are connected to each other.

  Here, the CPU 31 built in the communication terminal 7 is a control unit of the communication terminal 7 that executes various operations according to the operation program stored in the memory 32, and constitutes the communication terminal ECU 41 together with the memory 32. Various processing contents of the communication terminal ECU 41 are displayed on the display 38 as necessary.

  The memory 32 is set in user information (user ID, name, etc.) and map information related to the user 6 who owns the communication terminal 7, application programs such as an installed navigation application, current location history of the user 6, and navigation application. This is a storage medium in which a guide route (scheduled travel route of the user 6), a posted text search processing program (FIG. 7) described later, and the like are stored.

  Here, the map information stored in the memory 32 basically has the same configuration as the map information that the posted text search server 3 has. For example, link data related to roads (links) and node data related to node points. , Point information 25 regarding points such as facilities, map display data for displaying a map, intersection data regarding each intersection, search data for searching for a route, search data for searching for points, and the like. The map information may be acquired by communication from an external server (for example, the posted text search server 3) without being stored in the memory 32. The memory 32 may be constituted by a hard disk, a memory card, an optical disk such as a CD or a DVD, and the like.

  The display 38 is disposed on one surface of the housing, and a liquid crystal display, an organic EL display, or the like is used. A top screen for executing various applications installed in the communication terminal 7, screens related to the executed applications (Internet screen, mail screen, navigation screen, etc.), and various information such as images and videos are displayed. Is done. In particular, on the navigation screen displayed when the navigation application is executed, the map image including the road, traffic information, guidance route from the departure point to the destination (scheduled route), guidance information along the guidance route, etc. Is displayed. Further, in the present embodiment, information about the posted text received from the posted text management center 2 (sentence content of posted text, ID of the poster, etc.) is also displayed.

  The input operation unit 39 is constituted by a touch panel provided on the front surface of the display 38. Then, the communication terminal ECU 41 performs control to perform various corresponding operations based on an electrical signal output by pressing the touch panel or the like. In particular, this embodiment is used when starting and operating various application programs, posting a posted message, browsing a posted message already posted on a computer network, and the like. The input operation unit 39 can also be constituted by various keys such as a number / character input key, a cursor key for moving a cursor for selecting displayed contents, and an enter key for confirming selection.

  In addition, the GPS 40 can detect the current position and the current time of the communication terminal 7 (that is, the user 6) by receiving the radio wave generated by the artificial satellite. Moreover, it is good also as a structure provided with other apparatuses (for example, gyro sensor etc.) for detecting the present position and direction of the communication terminal 7 other than GPS40.

  The transmission / reception circuit unit 33 is configured to be able to communicate with the posted text management center 2 and the traffic information center 5 via the communication network 8. Then, it is possible to acquire traffic information such as traffic jam information, regulation information, and traffic accident information via the traffic information center 5. Further, it is also used for transmitting a posted text browsing request to / from the posted text management center 2 and receiving information on the extracted posted text.

  Next, a posted text search processing program executed in the communication terminal 7 and the posted text search server 3 constituting the posted text search system 1 having the above configuration will be described with reference to FIG. FIG. 7 is a flowchart of the posted text search processing program according to the present embodiment. Here, the posted text search processing program is executed after the navigation application is started in the communication terminal 7, and the content related to the user 6 who has requested browsing of the posted text from the posted text posted on the computer network. This is a program that extracts posted texts and provides information about the extracted posted texts to the user 6. Note that the programs shown in the flowcharts of FIGS. 7 and 9 below are stored in the RAM, ROM, or the like included in the posted text management center 2 or the communication terminal 7 and are executed by the CPU 21 or CPU 31.

First, a posted text search processing program executed in the communication terminal 7 will be described.
In step (hereinafter abbreviated as S) 1, the CPU 31 determines whether or not a destination setting operation has been performed in the navigation application.

  If it is determined that the destination setting operation has been performed (S1: YES), the process proceeds to S2. On the other hand, when it is determined that the destination setting operation has not been performed (S1: NO), the posted text search processing program is terminated.

  In S2, the CPU 31 acquires a guide route from the departure place to the set destination. The acquired guide route is stored in the memory 32 or the like. The guide route may be configured to be searched by the communication terminal 7, or may be configured to be searched by an external server and the communication terminal 7 to receive the searched guide route from the server. A known Dijkstra method is used for searching for a guidance route. Further, the departure point may be the current position of the user or an arbitrary point selected by the user (for example, home). The guide route acquired in S2 is the planned travel route for the user 6. The guide route is acquired and stored as position information consisting of numerical values. Specifically, the guide route is specified by a series of coordinates (latitude and longitude) points from the departure point to the destination.

  In S <b> 3, the CPU 31 transmits a posted text browsing request to the posted text search server 3. Note that the posting request for the posted text includes an ID for identifying the communication terminal 7 that is the transmission source of the browsing request and the position information of the guide route acquired in S2. The posted message search server 3 that has received the browsing request, as will be described later, “relates to the user 6 who requested browsing of the posted message from the posted messages posted on the computer network based on the received browsing request. “Posted Text Posting Contents to be Performed” is extracted (S12 to S14).

  Next, in S <b> 4, the CPU 31 receives information related to the posted text transmitted from the posted text management center 2. The information related to the posted text received in S4 is information related to the posted text extracted from the posted text posted on the computer network based on the browsing request transmitted in S3. This is information related to a “posted sentence posting content related to the user 6 who requested“. Further, the information related to the posted text includes the posted time of the posted text, the posting position, the ID of the poster, and the like, along with the text of the posted text.

  After that, in S5, the CPU 31 displays information related to the posted text received in S4 on the display 38 together with the guide route acquired in S2. Note that the information to be displayed may display all of the text of the posted text, the posting time when the posted text is posted, the posting position, 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. If the posted message cannot be received in S4, only the guidance route acquired in S2 is displayed.

Here, FIG. 8 is a view showing the posted message guidance screen 51 displayed on the display 38 in S5. As shown in FIG. 8, the posted message guidance screen 51 is composed of two display areas: a left screen 52 that displays a guide route and a right screen 53 that displays information related to a posted message.
The left screen 52 includes a map image 54 around the user, a current position mark 55 indicating the current position of the user, a guide route 56, and posting position marks 57 to 60 indicating the posting position of the displayed posted text. Composed.
The right screen 53 is provided with information display spaces 61 to 64 for displaying information related to the posted text. In each information display space 61-64, the ID of the poster who posted the posted text. Display the contents of each post. 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. Further, when displaying information related to a posted message, a posted message posted at a position close to the user may be displayed with priority. Furthermore, the posted text determined to have a high degree of matching with the search word in the search process (S14) described later may be displayed with priority. In addition, it is set as the structure which displays only the left screen 52, without displaying the right screen 53, and after the posting position mark 57-60 of the left screen 52 is selected, the information display space 61-64 of the corresponding posting text is newly provided. You may comprise so that it may arrange | position on a screen. Further, the posting position marks 57 to 60 may not be displayed.

  Then, the user can view the content of the posted message in which the content related to the user 6 is posted by visually recognizing the posted message guidance screen 51 shown in FIG. In particular, in this embodiment, when it is determined that the character string of the point name of the point on the guide route matches the character string included in the traffic information (FIG. 4), the name is determined to match as described later. Since the point search character string (FIG. 5) is set in the search word, various information related to the guide route (specifically, traffic jams and accidents on the guide route) can be grasped at a faster timing. It becomes possible.

Next, a posted text search processing program executed in the posted text search server 3 will be described.
First, in S11, the CPU 21 receives a browsing request transmitted from the user 6 who requests browsing of the posted text. The browsing request includes an ID that identifies the communication terminal 7 that is the transmission source of the browsing request and position information of a guide route (a user's scheduled travel route) set in the communication terminal 7. Further, the position information of the guide route included in the received browsing request is temporarily stored in a storage medium such as the RAM 22.

  Next, in S <b> 12, the CPU 21 acquires traffic information from the traffic information center 5. Here, the traffic information is provided from the traffic information center 5 in a plurality of information forms (for example, levels 1 to 3 in the VICS information) as described above. In particular, in S12, the traffic information including character strings (FIG. 4). ) To get. In addition, it is good also as a structure which acquires traffic information regularly (for example, every 5 minutes) irrespective of the presence or absence of reception of a browsing request.

  Subsequently, in S13, the CPU 21 executes a search word setting process (FIG. 9) described later. Here, the search word setting process is performed based on the position information of the guide route included in the browsing request received in S11 and the latest traffic information acquired in S12. From this, the search word is set to search for “posted text posting content related to the user 6 who has requested browsing of the posted text”.

  After that, in S14, the CPU 21 uses the search word set in S13 to post “posted content related to the user 6 who has requested to view the posted text” from the posted text posted on the computer network. A search process for searching for “sentence” is executed. Specifically, information related to the posted text including the search word set in S13 in the text is extracted from the posted text information (FIG. 3) stored in the posted text information DB 9 of the posted text information management server 4. To do.

  For example, in S13, “○ × (character string for searching a certain point on the guide route)” and “traffic jam” and “XX (character string for searching a certain point on the guide route)” and “congested” ”Is set as a search word,“ Junk AND ○ × OR XX ”is set as the search condition, and the text contains both“ X ”and“ Junk ”character strings. And the information regarding the posted sentence containing both the character strings of “XX” and “traffic jam” is extracted from the posted sentence information DB 9.

  Thereafter, in S15, the CPU 21 transmits information related to the posted text extracted in S14 to the communication terminal 7 that has requested browsing of the posted text. As a result, in the communication terminal 7 that has requested browsing of the posted text, information related to the posted text that posted the content related to the user 6 is displayed (S5).

  Next, the sub-process of the search word setting process executed in S13 will be described with reference to FIG. FIG. 9 is a flowchart of a sub-processing program for search word setting processing.

  First, in S <b> 21, the CPU 21 reads position information of a guide route (a user's scheduled travel route) included in the browsing request received in S <b> 11 from the RAM 22.

  Next, in S22, the CPU 21 determines the name of the spot included in the guide route by a character string based on the position information of the guide route read in S21 and the spot information 25 (FIG. 5) stored in the map information DB 12. get. The point from which the name is acquired in S22 is a point used for specifying a road section or a point on the road in traffic information (for example, IC, SA, PA, JCT, tunnel, Bus stop, toll booth, bridge, etc.).

Hereinafter, the process of S22 will be described in more detail.
First, the CPU 21 sets a search reference point on the guidance route. Here, FIG. 10 is a diagram showing search reference points 71 set for the guide route 70.
As shown in FIG. 10, the search reference points 71 are set at equal intervals along the guide route 70 from the departure point of the guide route 70 to the destination at a predetermined arrangement interval D. Further, for the arrangement interval D of the search reference points 71, an appropriate value is selected based on the shape of the guide route 70 from any one of 300m, 500m, 1500m, 3000m, 5000m, and 10000m, for example. Specifically, it is desirable to make the interval narrower in the case where the shape of the guide route 70 has a complicated shape, or in an area with a lot of point information such as a city center. Further, the arrangement interval D may be determined by the total length of the guide route 70 (for example, the longer the total length, the wider the interval). Furthermore, the arrangement interval may be changed in one guide route. For example, it is possible to increase the interval of the linear shape portion and to decrease the interval of the curve shape portion.
Next, the CPU 21 searches for a point located around the guide route based on the search reference point 71 set in the guide route. As described above, the points to be searched are points used for specifying road sections and points on the road in the traffic information (for example, IC, SA, PA, JCT, tunnel, bus stop, tollgate, Bridge). Specifically, the point search is performed by comparing the position coordinates of the search reference point 71 with the position information of the point included in the point information 25 (FIG. 5).
Subsequently, the CPU 21 determines based on the point information 25 whether or not each point searched for being located in the vicinity of the guide route is a point included in the guide route. Specifically, the road name and the traveling direction of the road where the searched point is located are specified from the point information 25 (FIG. 5), and the determination is made based on whether or not the route matches the guide route.
Finally, the CPU 21 reads, from the point information 25, the character string of the name of the point determined to be included in the guide route among the points searched as being located around the guide route. For example, when the points A to G are specified as the points included in the guide route 70 as shown in FIG. 11, the character strings of the names of the points A to G are acquired.

  Next, in S23, the CPU 21 compares the character string of the spot name included in the guide route acquired in S22 with the character string of the traffic information acquired in S12. When a plurality of pieces of traffic information are acquired in S12, the subsequent processes of S23 to S27 are executed for each acquired traffic information.

  Thereafter, in S24, the CPU 21 determines whether or not the traffic information acquired in S12 is information on a road section, that is, a character string of the name of the point corresponding to the start point of the road section (hereinafter referred to as a start point character string). Then, it is determined whether or not each of the character strings of the names of points corresponding to the end points of the section (hereinafter referred to as end point character strings) is included.

  And when it determines with the traffic information acquired by said S12 containing a starting point character string and an end point character string (S24: YES), it transfers to S25. On the other hand, when it is determined that the traffic information acquired in S12 does not include the start character string and the end character string (S24: NO), that is, the traffic information acquired in S12 is not a road section but a point. If it is determined that the information is information, the process proceeds to S32.

  In S25, the CPU 21 includes the character string of the point name that matches the start point character string and the character of the point name that matches the end point character string in the character string of the point name included in the guide route acquired in S22. Determine whether the column is included.

  Then, the character string of the point name included in the guidance route acquired in S22 includes the character string of the point name that matches the start point character string and the character string of the point name that matches the end point character string. (S25: YES), the process proceeds to S26. On the other hand, both the character string of the point name that matches the start point character string and the character string of the point name that matches the end point character string are included in the character string of the point name included in the guidance route acquired in S22. If it is determined not to be included (S25: NO), the process proceeds to S28.

  In S <b> 26, the CPU 21 determines that “the character string of the name of the point determined to match the name of the starting point character string” and the “character string of the end point character string and the name among the character strings of the point name acquired by the point name acquiring unit”. "The character string of the name of the point determined to match" and "the point included from the point determined to match the name with the start point character string to the point determined to match the name with the end character string along the guide route Are extracted as search target point names, respectively. The character string to be extracted is specifically a search character string (see FIG. 5).

  Here, in the character string of the point name included in the guidance route acquired in S22, the character string of the name of the point that includes the character string of the point name that matches the start point character string and matches the end point character string is The case where it is determined that it is included is a case where the entire section to be subjected to traffic information is included in the guide route 70 as shown in FIG. For example, in the example shown in FIG. 12, the traffic information is information indicating that the section from the point C to the point E is congested, the start point character string is the character string of the name of the point C, and the end point character string is the point E. It is a character string of the name. Therefore, the character string of the name of the point C which is “a character string of the name of the point where the name is matched with the name of the start point” and the character string of the name of the point where the name is matched with the name of the end point character string The character string of the name of the point E being "" and the names of the points included from the point where the name is determined to match the start point character string to the point where the name is determined to match the end point character string along the guide route The character string of the name of the point D which is “character string of“ is extracted as the search target point name. As a result, it is possible to extract the character strings of the names of all the points located within the overlapping range of the guidance route and the traffic information target section as the search target point names.

Thereafter, in S27, the CPU 21 sets, as a search word, a combination of the character string of the spot name extracted in S26 and the character string indicating the traffic situation included in the character string of the traffic information. For example, as shown in FIG. 12, when the acquired traffic information is “uphill on the XX expressway, traffic jam of 8 km from point C to point E”, “traffic jam” is used as a word indicating the traffic situation. included. Therefore, a combination of “name of point C” and “traffic jam”, a combination of “name of point D” and “traffic jam”, and a combination of “name of point E” and “traffic jam” are set as search words.
Thereafter, based on the set search word, a search process for searching for a posted sentence including the search word from the posted sentences posted on the computer network is executed (S14).

  On the other hand, in S28, the CPU 21 determines whether or not the character string of the point name included in the guidance route acquired in S22 includes the character string of the point name that matches the start point character string.

  If it is determined that the character string of the point name included in the guidance route acquired in S22 includes the character string of the point name that matches the starting point character string (S28: YES), the process proceeds to S29. Transition. On the other hand, if it is determined that the character string of the point name included in the guidance route acquired in S22 does not include the character string of the point name that matches the starting point character string (S28: NO), The process proceeds to S30.

  In S29, the CPU 21 determines that “the character string of the name of the point determined to match the name of the starting point character string” and “the character string of the starting point character string and the name among the character string of the point name acquired by the point name acquiring unit”. The character strings of the names of the points included between the point determined to match and the point where the road name changes along the traveling direction of the guide route are extracted as the search target point names. The character string to be extracted is specifically a search character string (see FIG. 5).

  If it is determined that the character string of the point name included in the guidance route acquired in S22 includes only the character string of the point name that matches the starting point character string, as shown in FIG. In this case, a part of the section that is the target of the traffic information is included. For example, in the example shown in FIG. 13, the traffic information is information indicating that the section from the point C to the point H is congested, and the start point character string is a character string of the name of the point C. Therefore, the character string of the name of the point C which is “the character string of the name of the point where the name is matched with the name of the starting point” and the progress of the guide route from the point where the name is matched with the name of the starting point character string. A character string of the name of the point D and a character string of the name of the point E, which are “character strings of the names of the points included by the point where the road name changes along the direction”, are extracted as the search target point names. As a result, it is possible to extract the character strings of the names of all the points located within the overlapping range of the guidance route and the traffic information target section as the search target point names.

Thereafter, in S27, the CPU 21 sets, as a search word, a combination of the character string of the spot name extracted in S28 and the character string indicating the traffic situation included in the character string of the traffic information. For example, as shown in FIG. 13, when the acquired traffic information is “15 km traffic jam from point C to point H on the XX expressway”, “traffic jam” is used as a word indicating the traffic situation. included. Therefore, a combination of “name of point C” and “traffic jam”, a combination of “name of point D” and “traffic jam”, and a combination of “name of point E” and “traffic jam” are set as search words.
Thereafter, based on the set search word, a search process for searching for a posted sentence including the search word from the posted sentences posted on the computer network is executed (S14).

  On the other hand, in S30, the CPU 21 determines whether or not the character string of the point name included in the guidance route acquired in S22 includes the character string of the point name that matches the end point character string.

  If it is determined that the character string of the point name included in the guidance route acquired in S22 includes the character string of the point name that matches the end point character string (S30: YES), the process proceeds to S31. Transition. On the other hand, when it is determined that the character string of the point name included in the guidance route acquired in S22 does not include the character string of the point name that matches the end point character string (S30: NO). Then, the posted sentence search processing program is terminated without setting a search word.

  In S <b> 31, the CPU 21 determines that “the character string of the name of the point where it is determined that the name matches the end point character string” among the character string of the point name acquired by the point name acquisition unit, and “the end point character string and the name are The character strings of the names of the points included between the point determined to match and the point where the road name changes along the reverse direction of the traveling direction of the guide route are extracted as the search target point names. The character string to be extracted is specifically a search character string (see FIG. 5).

  When it is determined that the character string of the point name included in the guidance route acquired in S22 includes only the character string of the name of the point that matches the end point character string, as shown in FIG. In this case, a part of the section that is the target of the traffic information is included. For example, in the example shown in FIG. 14, the traffic information is information indicating that lane regulation is performed in the section from the point I to the point C, and the end point character string is a character string of the name of the point C. Therefore, the character string of the name of the point C, which is “the character string of the name of the point where the name is matched with the end point character string”, and the progress of the guidance route from the point where the name is matched with the name of the end point character string The character string of the name of the point B, which is the “character string of the name of the point included by the point where the road name changes along the reverse direction of the direction”, is extracted as the search target point name. As a result, it is possible to extract the character strings of the names of all the points located within the overlapping range of the guidance route and the traffic information target section as the search target point names.

Thereafter, in S27, the CPU 21 sets, as a search word, a combination of the character string of the spot name extracted in S31 and the character string indicating the traffic situation included in the character string of the traffic information. For example, as shown in FIG. 14, when the acquired traffic information has the content of “lane restriction from XX highway, point I to point C”, “lane restriction” is used as a word indicating the traffic situation. included. Therefore, a combination of “name of point B” and “lane restriction” and a combination of “name of point C” and “lane restriction” are set as search words.
Thereafter, based on the set search word, a search process for searching for a posted sentence including the search word from the posted sentences posted on the computer network is executed (S14).

  On the other hand, in S32, the CPU 21 determines whether or not the point name character string included in the guide route acquired in S22 includes a point name that matches the character string of the traffic information.

  When it is determined that the name of the point that matches the character string of the traffic information is included in the character string of the point name included in the guidance route acquired in S22 (S32: YES), the process proceeds to S33. To do. On the other hand, if it is determined that the point name character string included in the guidance route acquired in S22 does not include the name of the point that matches the character string of the traffic information (S32: NO), the search is performed. The posted sentence search processing program is terminated without setting a word.

  In S <b> 33, the CPU 21 extracts “a character string of the name of the point determined to match the character string of the traffic information” from the character string of the point name acquired by the point name acquisition unit as the search target point name. The character string to be extracted is specifically a search character string (see FIG. 5).

  It is determined that the traffic information is information about a point, and the character string of the point name that matches the character string of the traffic information is included in the character string of the point name included in the guidance route acquired in S22. In this case, as shown in FIG. 15, a point that is a target of traffic information is included in the guide route 70. For example, in the example shown in FIG. 15, the traffic information is information indicating that there is a broken vehicle in the vicinity of the point D. Therefore, the character string of the name of the point D that is “the character string of the name of the point determined to match the character string of the traffic information” is extracted as the search target point name. As a result, it is possible to extract the character strings of the names of all the points located within the overlapping range of the guide route and the traffic information target points as the search target point names.

Further, in S33, the CPU 21 sets, as a search word, a combination of the character string of the extracted location name and the character string indicating the traffic situation included in the character string of the traffic information. For example, as shown in FIG. 15, when the acquired traffic information is “Up on the XX expressway, there is a broken car near point D”, “failed car” is included as a word indicating the traffic situation. It is. Therefore, a combination of “name of point D” and “failed vehicle” is set as a search word.
Thereafter, based on the set search word, a search process for searching for a posted sentence including the search word from the posted sentences posted on the computer network is executed (S14).

As described above in detail, in the posted text search system 1 according to the present embodiment, the posted text search method by the posted text search system 1, and the computer program executed in the posted text search system 1, a guide route is set in the communication terminal 7. If so, the posted text browsing server 3 transmits a posted text browsing request to the posted text search server 3 (S3), and the received posted text search server 3 receives the browsing request, acquires traffic information from the traffic information center 5 (S12), The name of the point included in the guide route is acquired as a character string (S22), the character string of the point name that matches the character string included in the traffic information is set as a search word (S27, S33), and posted on the computer network The posted text including the set search word is searched from the posted text that has been set (S14), and the searched posted text is provided (S15). From among the posted message posted on-menu data network, thereby enabling the user to extract only the proper posted messages information is submitted in need. As a result, information related to the user's planned travel route (for example, traffic jams, accidents, etc. on the planned travel route) can be grasped at a faster timing via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.
In addition, when the traffic information is information on a point on the road, the traffic information includes a character string of the name of the point. When the traffic information is information on a road section, the name of the point corresponding to the start point of the section is displayed. Since it includes the start point character string that is a character string and the end point character string that is the character string of the name of the point corresponding to the end point of the section, depending on the type of traffic information (traffic information for the point or traffic information for the section) It becomes possible to set a search word appropriately.
In addition, when the character string of the name of the point included in the travel route of the user includes the character string of the name of the point that matches the start point character string, and the character string of the name of the point that matches the end point character string The character string of the name of the point included from the point determined to match the start point character string and the name to the point determined to match the end point character string and the name along the planned travel route is used as the search target point name. Since additional acquisition is performed, even if the traffic information specifies only the start point and end point of the target section, the names of other points in the section can be set as search words. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.
In addition, the character string of the name of the point included in the planned travel route of the user includes the character string of the name of the point that matches the start point character string, and does not include the character string of the name of the point that matches the character string of the end point. In this case, the character string of the name of the point included between the point where the name matches the starting point character string and the point where the road name changes along the traveling direction of the planned travel route is additionally acquired as the search target point name. Therefore, even if the traffic information specifies only the start point and end point of the target section, the names of other points in the section that overlap the planned travel route can be set as search words. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.
In addition, the character string of the point name included in the travel route of the user includes the character string of the point name that matches the end point character string, and does not include the character string of the point name that matches the start point character string. In this case, the character string of the name of the point included from the point where the name matches the end point character string to the point where the road name changes along the reverse direction of the traveling direction of the planned travel route is used as the search target point name. Because it is additionally acquired, it is possible to set the name of other points in the section that overlap with the planned travel route in the search word even if it is traffic information specifying only the start point and end point of the target section Become. As a result, it becomes possible to set the character strings of the names of all the points located within the range where the planned travel route and the traffic information target section overlap.

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 server 3 executes the processing of S11 to S15 of the posted text search processing program (FIG. 7), but the traffic information center 5, the posted text information management server 4, and the communication terminal 7 are configured. May be configured to execute a part or all of the processing.

  In the present embodiment, the guide route set in the communication terminal 7 that has requested to view posts is transmitted from the communication terminal 7 to the posted text search server 3 as the user's scheduled travel route. It is good also as a structure which transmits the starting point and destination set in the communication terminal 7 instead of. In that case, the guidance route search is performed from the departure place and the destination received by the posted text search server 3.

  Also, in this embodiment, if it is an expressway, the point matching is determined in consideration of the traveling direction, but the matching determination is performed only from the position coordinates for the facing section without considering the traveling direction. Also good.

  Further, in the present embodiment, the posted text information management server 4 as posted text information includes the posted text, the posting time when the posted text was posted, and the location information of the contributor when the posted text was posted. Although it is configured to store the contributor's ID and the like, only the posted text may be stored.

1 Posting text search system 2 Posting text management center 3 Posting text search server 4 Posting text information management server 5 Traffic information center 6 User 7 Communication terminal 25 Point information

Claims (8)

Traffic information acquisition means for acquiring traffic information consisting of character strings;
A planned travel route acquisition means for acquiring the user's planned travel route as position information consisting of numerical values;
Point information acquisition means for acquiring point information in which a name and position information are associated with each point;
Point name acquisition means for acquiring, by a character string, the name of a point included in the planned travel route based on the position information of the planned travel route and the point information;
A search target point that acquires, as a search target point name, a character string of a point name that is determined to match a character string included in the traffic information among character strings of the point names acquired by the point name acquisition unit Name acquisition means;
Search condition setting means for setting the search target spot name acquired by the search target spot name acquisition means in a search word;
From among the posted message posted on the computer network, it has a, search means for extracting the posted message corresponding to the search word set by the search condition setting means,
The traffic information is
If it is information for a point on the road, it contains a character string of the name of the point,
When the information is for a road section, it includes a start point character string that is a character string of a point name corresponding to the start point of the section, and an end point character string that is a character string of a point name corresponding to the end point of the section ,
In the character string of the name of the point acquired by the point name acquisition means, the character string of the name of the point that matches the start point character string and the character string of the name of the point that matches the end point character string are included. In this case, among the character strings of the names of the points acquired by the point name acquisition means, the names match the end character strings along the planned travel route from the points determined to match the names of the start point character strings. Then, it has the 1st additional acquisition means which additionally acquires the character string of the name of the point contained by the determined point as said search object point name, The posted sentence search system characterized by the above-mentioned . Traffic information acquisition means for acquiring traffic information consisting of character strings;
A planned travel route acquisition means for acquiring the user's planned travel route as position information consisting of numerical values;
Point information acquisition means for acquiring point information in which a name and position information are associated with each point;
Point name acquisition means for acquiring, by a character string, the name of a point included in the planned travel route based on the position information of the planned travel route and the point information;
Of the character string of the name of the point acquired by the point name acquisition means, the character string of the name of the point included in the range where the planned travel route and the target section of the traffic information overlap, Search target point name acquisition means to acquire as a name;
Search condition setting means for setting the search target spot name acquired by the search target spot name acquisition means in a search word;
A posted text search system, comprising: search means for extracting a posted text corresponding to the search word set by the search condition setting means from posted text posted on a computer network. Traffic information acquisition means for acquiring traffic information consisting of character strings;
A planned travel route acquisition means for acquiring the user's planned travel route as position information consisting of numerical values;
Point information acquisition means for acquiring point information in which a name and position information are associated with each point;
Point name acquisition means for acquiring, by a character string, the name of a point included in the planned travel route based on the position information of the planned travel route and the point information;
A search target point that acquires, as a search target point name, a character string of a point name that is determined to match a character string included in the traffic information among character strings of the point names acquired by the point name acquisition unit Name acquisition means;
Search condition setting means for setting the search target spot name acquired by the search target spot name acquisition means in a search word;
From among the posted message posted on the computer network, it has a, search means for extracting the posted message corresponding to the search word set by the search condition setting means,
The traffic information is
If it is information for a point on the road, it contains a character string of the name of the point,
When the information is for a road section, it includes a start point character string that is a character string of a point name corresponding to the start point of the section, and an end point character string that is a character string of a point name corresponding to the end point of the section ,
The character string of the name of the point acquired by the point name acquisition means includes the character string of the name of the point that matches one of the start point character string and the end point character string, and the point that matches the other If the character string of the name is not included, the travel from the point where the name of the character string of the name of the point acquired by the point name acquisition means matches the name of the start point character string or the end point character string is determined. It has the 2nd additional acquisition means which acquires additionally the character string of the name of the point included by the point where the name about the road which the above-mentioned scheduled travel route passes changes along the planned route as the search object point name , Posting text search system. The second additional acquisition means includes
In the character string of the name of the point acquired by the point name acquisition means, the character string of the name of the point that matches the end point character string , while including the character string of the name of the point that matches the start point character string If not included
A road through which the planned travel route passes along a traveling direction of the planned travel route from a point determined to have a name that matches the start point character string in the character string of the name of the point acquired by the point name acquisition unit 4. The posted text search system according to claim 3 , wherein a character string of a name of a point included up to a point where a name relating to the name is changed is additionally acquired as the search target point name. The second additional acquisition means includes
In the character string of the name of the point acquired by the point name acquisition means, the character string of the name of the point that matches the start point character string , while including the character string of the point name that matches the end character string If not included
Of the character string of the name of the point acquired by the point name acquisition means, from the point determined to match the name with the end point character string, the planned travel route along the reverse direction of the travel direction of the planned travel route 4. The posted text search system according to claim 3 , wherein a character string of a name of a point included up to a point where a name relating to a passing road changes is additionally acquired as the search target point name. Traffic information acquisition means for acquiring traffic information consisting of character strings;
A planned travel route acquisition means for acquiring the user's planned travel route as position information consisting of numerical values;
Point information acquisition means for acquiring point information in which a name and position information are associated with each point;
Point name acquisition means for acquiring, by a character string, the name of a point included in the planned travel route based on the position information of the planned travel route and the point information;
Of the character string of the name of the point acquired by the point name acquisition means, the character string of the name of the point included in the range where the planned travel route and the target section of the traffic information overlap, Search target point name acquisition means to acquire as a name;
Search condition setting means for setting the search target spot name acquired by the search target spot name acquisition means in a search word;
A posted text search apparatus, comprising: search means for extracting a posted text corresponding to the search word set by the search condition setting means from posted text posted on a computer network. A traffic information acquisition step for acquiring traffic information consisting of character strings;
A planned travel route acquisition step for acquiring the user's planned travel route as position information consisting of numerical values;
A point information acquisition step for acquiring point information in which a name and position information are associated with each point;
A point name acquisition step for acquiring, by a character string, the name of a point included in the planned travel route based on the position information of the planned travel route and the point information;
The character string of the name of the point included in the range where the travel target route and the target section of the traffic information overlap among the character string of the name of the point acquired by the point name acquisition step, A search target point name acquisition step to acquire as a name;
A search condition setting step for setting the search target point name acquired in the search target point name acquisition step as a search word;
A posted text search method, comprising: a search step for extracting a posted text corresponding to the search word set by the search condition setting step from posted text posted on a computer network. On the computer,
Traffic information acquisition function to acquire traffic information consisting of character strings,
A planned travel route acquisition function for acquiring a user's planned travel route as position information consisting of numerical values;
A point information acquisition function for acquiring point information in which a name and position information are associated with each point;
A point name acquisition function for acquiring, by a character string, the name of a point included in the planned travel route based on the position information of the planned travel route and the point information;
Of the character string of the name of the point acquired by the point name acquisition function, the character string of the name of the point included in the range where the planned travel route and the target section of the traffic information overlap, Search target point name acquisition function to acquire as a name,
A search condition setting function for setting the search target point name acquired by the search target point name acquisition function in a search word;
A search function for extracting a posted sentence corresponding to the search word set by the search condition setting function from posted sentences posted on a computer network;
A computer program for executing

Images