JP2014119870A - Submission sentence search system, submission sentence search device, submission sentence search method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a submission sentence search system, a submission sentence search device, a submission sentence search method, and a computer program, which enable appropriate search for only a submission sentence in which information required by a user is submitted.SOLUTION: A submission sentence search server 3 periodically obtains traffic information consisting of a character string from a traffic information center 5 and identifies a character string of a name of a geographic spot included in a road section constituting a target according to the obtained traffic information and positional information of the aforementioned spot on the basis of spot information 25 and complements the traffic information with the identified information. Meanwhile, in a case where a guidance route is set on a communication terminal 7, a browse request for a submission sentence is transmitted to a submission sentence search server 3, and the submission sentence search server 3, having received the browse request, performs: reading the post-complement traffic information; setting a search word from a character string of a name of a geographic spot contained in the post-complement traffic information; searching among submission sentences submitted onto a computer network for a submission sentence containing the set search word; and providing the retrieved submission sentence.

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, there is a method of searching by setting a search word using traffic information. Here, as shown in Japanese Patent Laid-Open No. 2005-181272, the traffic information is, for example, information composed of character strings, and is composed of character strings indicating sections where traffic is congested or lanes are restricted. .

Japanese Patent Laying-Open No. 2005-181272 (page 10-11, FIG. 3)

  However, traffic information consisting of character strings includes a character string specifying the road name and the start point of the road and a character string specifying the end point when the road section is targeted. It does not include a character string that identifies a point at. Therefore, even if an attempt is made to create a search word from traffic information and extract a posted sentence in which information related to traffic information is posted as necessary information for the user, information on points included in the section targeted for traffic information is posted In some cases, posted posts could not be extracted.

  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 associates traffic information acquisition means (11) for acquiring traffic information consisting of character strings with name and position information for each point. Point information acquisition means (11) for acquiring the attached point information (25), and the name of the point included in the section of the road targeted by the traffic information based on the character string of the traffic information and the point information On the computer network, a point name acquiring unit (11) for acquiring a search word from the character string of the name of the point acquired by the point name acquiring unit (11), and a search condition setting unit (11) for setting a search word Search means (11) for extracting a posted sentence corresponding to the search word set by the search condition setting means from posted posted sentences.

  Further, the posted text search system (1) according to claim 2 is the posted text search system according to claim 1, wherein the traffic information is information on a road section. A start point character string that is a character string of the name of the corresponding point, 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, and from the start point character string and the point information, Start point position specifying means (11) for specifying position information, and end point position specifying means (11) for specifying position information of the end point of the section from the end point character string and the point information, and acquiring the point name The means (11) obtains the name of a point included in the target road section from the traffic information from the position information of the start point of the section, the position information of the end point of the section, and the point information. To do.

  Further, the posted text search system (1) according to claim 3 is the posted text search system according to claim 1 or 2, wherein the planned travel route acquisition means (11) acquires the planned travel route of the user. The search condition setting means (11) sets, in the search word, the name of a spot included in the planned travel route among the names of the spots acquired by the spot name acquisition means. And

Further, the posted text search system (1) according to claim 4 is the posted text search system according to claim 3, wherein the planned travel route is acquired as position information consisting of numerical values, and a character string of the traffic information And point information acquisition means (11) for acquiring position information of points included in a section of the target road by the traffic information based on the traffic information, and the search condition setting means (11) Of the names of the points acquired by the point name acquisition means, the name of the point whose position information matches the planned travel route is set in the search word.
“Position information matches” includes not only the case where the position information is completely matched but also the case where the difference is within a predetermined allowable range.

  Further, the posted text search device (2) according to claim 5 is a traffic information acquisition means (11) for acquiring traffic information composed of character strings, and point information (25) in which a name and position information are associated with each point. ) To acquire the name of the point included in the section of the road targeted by the traffic information based on the character information of the traffic information and the point information. A point name acquisition unit (11), a search condition setting unit (11) for setting a search word from a character string of the name of the point acquired by the point name acquisition unit (and a posted sentence posted on a computer network) Search means (11) for extracting a posted sentence corresponding to the search word set by the search condition setting means.

  The posted text search method according to claim 6 is a traffic information acquisition step for acquiring traffic information consisting of character strings, and point information for acquiring point information (25) in which a name and position information are associated with each point. An acquisition step; a point name acquisition step for acquiring, by a character string, a name of a point included in a section of a road targeted by the traffic information based on the character string of the traffic information and the point information; and the point name A search condition setting step for setting a search word from the character string of the name of the point acquired by the acquisition step, and the search word set by the search condition setting step from among posted sentences posted on the computer network And a retrieval step for extracting a corresponding posted sentence.

  Furthermore, the computer program according to claim 7 is a point for acquiring, in a computer, a traffic information acquisition function for acquiring traffic information composed of character strings, and point information (25) in which a name and position information are associated with each point. Based on the information acquisition function, the traffic information character string and the point information, the point name acquisition function for acquiring the name of the point included in the section of the target road by the traffic information by the character string, and the point A search condition setting function for setting a search word from a character string of a location name acquired by the name acquisition function, and the search word set by the search condition setting function from among posted sentences posted on a computer network And a search function for extracting a posted sentence corresponding to the above.

  In the posted text search system according to claim 1 having the above-described configuration, the name of the point included in the section of the target road is acquired by the character string based on the traffic information and the point information consisting of the character string. The character string of the name of the acquired point 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 it is posted on the computer network. It is possible to appropriately extract only the posted text on which the information required by the user is posted from the posted text. As a result, it becomes possible to grasp the more detailed traffic situation at the present time, which cannot be specified only from the distributed traffic information, 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 2, when the traffic information is information on a road section, the traffic information is targeted from the position information of the start point of the section, the position information of the end point of the section, and the point information. Since the name of the point included in the road section is acquired, it is possible to specify the character string of the name of another point between the start point and the end point even from traffic information that specifies only the start point and end point of the section It becomes. Therefore, the character string of the name of another point between the start point and the end point can also be set as a search word, and it becomes possible to appropriately extract a posted sentence in which information required by the user is posted. .

  Further, in the posted text search system according to claim 3, the name of the point included in the planned travel route among the names of the points included in the road section targeted by the traffic information is set in the search word. It is possible to grasp information related to the planned travel route (for example, traffic jams, accidents, etc. on the planned travel route) at a faster timing via the posted text.

  In the posted text search system according to claim 4, the planned travel route is acquired as numerical position information, and the planned travel route and position information among the names of the points included in the target road section by the communication information. The name of the point that matches is set in the search word, so by comparing the location information, all the points that are located within the overlapping range of the target route of the planned travel route and the traffic information must be specified accurately Is possible.

  Further, in the posted text search device according to claim 5, the name of the point included in the section of the target road is acquired by the traffic information based on the traffic information and the point information including the character string, and the acquisition is performed. The character string of the name of the specified point is set as the search word, and the posted text containing the set search word is searched from the posted text posted on the computer network, so the post posted on the computer network From the sentence, it is possible to appropriately extract only a posted sentence on which information required by the user is posted. As a result, it becomes possible to grasp the more detailed traffic situation at the present time, which cannot be specified only from the distributed traffic information, via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.

  Further, in the posted text search method according to claim 6, the name of the point included in the section of the target road is acquired by the traffic information based on the traffic information and the point information consisting of the character string, and the acquisition is performed. The character string of the name of the specified point is set as the search word, and the posted text containing the set search word is searched from the posted text posted on the computer network, so the post posted on the computer network From the sentence, it is possible to appropriately extract only a posted sentence on which information required by the user is posted. As a result, it becomes possible to grasp the more detailed traffic situation at the present time, which cannot be specified only from the distributed traffic information, via the posted text. In addition, since it is not necessary to cause the user to input search conditions, the operability can be improved.

  Further, in the computer program according to claim 7, the name of the point included in the section of the target road is acquired by the character string based on the traffic information and the point information consisting of the character string, and is acquired. Because the character string of the name of the point is set as the search word, and the posted text containing the set search word is searched from the posted text posted on the computer network, the posted text posted on the computer network Only the posted text on which the information required by the user is posted can be appropriately extracted. As a result, it becomes possible to grasp the more detailed traffic situation at the present time, which cannot be specified only from the distributed traffic information, 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 traffic information supplement processing program which concerns on this embodiment. It is the figure which showed an example of complementary traffic information. It is the figure which showed an example of complementary traffic information. 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 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. 11). 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. 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, a complementary traffic information DB 13, and a center communication device 14 as shown in FIG. It is configured.

  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. In addition to the CPU 21 as the arithmetic device and the control device, the RAM 22 used as a working memory when the CPU 21 performs various arithmetic processes, various control programs, a traffic information supplement processing program (FIG. 7) described later, and posted text search. An internal storage device such as a ROM 23 storing a processing program (FIG. 10) and the like 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. A point information acquisition means acquires the point information which matched the name and position information for every point. A point name acquisition means acquires the name of the point contained in the section of the road used as traffic object by a character string based on the character string of traffic information and point information. The search condition setting means sets a search word from the character string of the name of the spot acquired by the spot name acquiring means. 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 starting point position specifying means specifies the position information of the starting point of the road section that is the target of the traffic information from the starting point character string and the point information. The end point position specifying means specifies the position information of the end point of the road section that is the target of the traffic information from the end point character string and the point information. The planned travel route acquisition means acquires the planned travel route of the user. The point position acquisition unit acquires the position information of the point from which the name is acquired by the point name acquisition unit from the point information.

  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 and position information of the point name of the point contained in the area of the road used as traffic object by traffic information so that it may mention later, and also point name and position information are specified. A search character string for a point determined to be included in the planned travel route of the user is set as a search word.

  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 supplemental traffic information DB 13 is a storage unit that stores supplemental traffic information in which information is supplemented with respect to the traffic information acquired from the traffic information center 5. Note that the supplemented information is information related to points that are missing from the traffic information acquired from the traffic information center 5, and more specifically, when the traffic information is information on road points (for example, accident information). The character string (including the search character string) and the position information (latitude and longitude) of the point name of the point are complemented based on the point information 25. On the other hand, when the traffic information is information on a road section (for example, traffic jam information), the character string and position information of the point names of the start point and end point of the section, and included in the section (that is, between the start point and the end point) The character string of the point name of another point and the position information are supplemented based on the point information 25.

  The center communication device 14 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 14.

  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. 10) 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 traffic information supplement processing program executed in 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 traffic information supplement processing program according to this embodiment. Here, the traffic information supplement processing program is a program that is periodically executed at predetermined time intervals (for example, every 5 minutes) and supplements information regarding points that are missing from the traffic information acquired from the traffic information center 5. . Note that the program shown in the flowchart of FIG. 7 below is stored in the RAM, ROM or the like provided in the posted text management center 2 and is executed by the CPU 21.

  First, in step (hereinafter abbreviated as S) 1, the CPU 21 acquires traffic information from the traffic information center 5. Here, as described above, 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). In particular, in S1, the traffic information including character strings (FIG. 4). ) To get.

  Next, in S2, CPU21 reads the spot information 25 (FIG. 5) memorize | stored in map information DB12, and collates with the traffic information acquired by said S1. If a plurality of pieces of traffic information are acquired in S1, the subsequent processes of S2 to S8 are executed for each acquired traffic information.

  Thereafter, in S3, the CPU 21 determines whether or not the traffic information acquired in S1 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 S1 including a starting point character string and an end point character string (S3: YES), it transfers to S4. On the other hand, when it is determined that the traffic information acquired in S1 does not include the start character string and the end character string (S3: NO), that is, the traffic information acquired in S1 is not for a road section but for a point. If it is determined that the information is information or other information, the process proceeds to S8.

  In S4, the CPU 21 determines, as a result of the collation in S2, the character string (search for the name of the point where the name is determined to match the starting point character string from the information regarding each point stored in the point information 25 (FIG. 5). For example) ”and“ location information (latitude and longitude) of the point ”.

  In S5, as a result of the collation in S2, the CPU 21 selects “a character string of the name of the point where the end character string and the name match among the information relating to each point stored in the point information 25 (FIG. 5). (Including the search character string) "and" location information (latitude and longitude) of the point "are extracted.

  Further, in S6, the CPU 21 determines, based on the location information of each point extracted in S4 and S5 and the point information 25 (FIG. 5), among the information regarding each point stored in the point information 25, “By traffic information”. A character string (including a search character string) of names of points determined to be included in the target road section (excluding points where information has already been extracted in S4 and S5); The location information (latitude and longitude) of the point is extracted. Here, as described above, the traffic information includes traffic conditions (for example, traffic jams, traffic lane restrictions, closed roads) for sections of roads with the same name (for example, Tomei Expressway, Shin-Tomei Expressway, Chuo Expressway, etc.) or points on the road. It consists of a character string that identifies Therefore, in S6, the “starting point character” is in the road and the traveling direction with the same name as “the point where the name is determined to match the starting point character string” and “the point where the name is determined to match the end point character string”. The character string of the name of the point and the position information are extracted for other points between the point where the name is determined to match the name and the point where the name is determined to match the end point character string. . For example, if the “point determined to match the name of the start character string” is “Tomei Kawasaki IC” and the “point determined to match the name of the end character string” is “Tamagawa Bridge” In the point information shown in FIG. 5, character strings and position information of names of two points of “Tokyo Tollgate” and “Mukogaoka BS (bus stop)” in the upward direction of Tomei Expressway are extracted.

After that, in S7, the CPU 21 complements the character string and position information of the names of the points extracted in S4 to S6 with the traffic information acquired in S1, and stores it in the supplemental traffic information DB 13 together with the traffic information. For example, as shown in FIG. 8, when the character string “Tomei Expressway Tomei Kawasaki IC → Tama River Bridge Accident Lane Restriction” is acquired as traffic information, the following information (A) to (D) is the point information 25: And is supplemented with traffic information.
(A) A character string and position information of the name of “Tomei Kawasaki IC”, which is a point where the name of the starting point character string is determined to match.
(B) A character string and position information of a name “Tama River Bridge” which is a point where the end character string and the name are determined to match.
(C) A character string and position information of the name of “Tokyo Tollgate”, which is a point determined to be included in the target road section by the traffic information.
(D) A character string and position information of the name of “Mukogaoka BS (bus stop)”, which is a point determined to be included in the section of the target road by the traffic information.
The traffic information supplemented with the information in S7 (hereinafter referred to as complementary traffic information) is used to set a search word for searching for a posted text in a posted text search processing program (FIG. 10) described later. It is done.

  On the other hand, in S8, as a result of the collation in S2, the CPU 21 determines that “the name of the spot whose name matches the spot included in the traffic information, among the information regarding each spot stored in the spot information 25 (FIG. 5). ”(Including the search character string)” and “location information (latitude and longitude) of the point”. For example, if the “location determined to match the name included in the traffic information” is “Tomei Kawasaki IC”, the “Tomei Kawasaki” in the upward direction of Tomei Expressway in the location information shown in FIG. The character string of the name of the location of “IC” and the position information are extracted.

Thereafter, in S7, the CPU 21 complements the character string and position information of the name of the spot extracted in S8 with the traffic information acquired in S1, and stores it in the complementary traffic information DB 13 together with the traffic information. For example, as shown in FIG. 9, when a character string “Chuo Road up rigging hill SA, no broken car restriction” is acquired as traffic information, the following information (E) is extracted from the point information 25 and traffic Supplemented with information.
(E) A character string and position information of the name of “Dagizaka SA”, which is a point determined to match the point included in the traffic information.

  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 will be described with reference to FIG. FIG. 10 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. 10 and 12 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 S11, the CPU 31 determines whether or not a destination setting operation has been performed in the navigation application.

  When it is determined that the destination setting operation has been performed (S11: YES), the process proceeds to S12. On the other hand, when it is determined that the destination setting operation has not been performed (S11: NO), the posted text search processing program is terminated.

  In S12, the CPU 31 obtains 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 S12 is the planned travel route of 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> 13, 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 S12. 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 (S22 to S24).

  Next, in S <b> 14, 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 S14 is information related to the posted text extracted from the posted text posted on the computer network based on the browsing request transmitted in S13. 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.

  Thereafter, in S15, the CPU 31 displays on the display 38 information related to the posted message received in S14 along with the guidance route acquired in S12. 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 S14, only the guidance route acquired in S12 is displayed.

Here, FIG. 11 is a view showing the posted message guidance screen 51 displayed on the display 38 in S15. As shown in FIG. 11, 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 (S24) 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 the present embodiment, a search character string (FIG. 5) for a point determined to be included in the guidance route among the sections and points targeted in the traffic information is set in the search word, so that it relates to the guidance route. Various types of information (specifically, traffic jams and accidents on the guide route) can be grasped at a faster timing.

Next, a posted text search processing program executed in the posted text search server 3 will be described.
First, in S21, 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 S22, the CPU 21 reads complementary traffic information from the complementary traffic information DB 13. Here, the supplemental traffic information is traffic information in which the character string of the name of the point and the position information are supplemented in the above-described traffic information supplement processing program (FIG. 7).

  Subsequently, in S23, the CPU 21 executes a search word setting process (FIG. 12) described later. Here, the search word setting process is based on the location information of the guide route included in the browsing request received in S21 and the latest supplemental traffic information acquired in S22. This is a process of setting a search word for searching for “posted text posting content related to the user 6 who has requested browsing of posted text”.

  Thereafter, in S24, the CPU 21 uses the search word set in S23 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 S23 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 S23, the combination of “Ox (character string for searching a certain point on the guide route)” and “Junk”, and “XX (character string for searching a certain point on the guide route)” and “Jam ”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 S25, the CPU 21 transmits information on the posted text extracted in S24 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 (S15).

  Next, the sub-process of the search word setting process executed in S23 will be described with reference to FIG. FIG. 12 is a flowchart of a sub-processing program for search word setting processing.

  First, in S <b> 31, the CPU 21 reads position information of a guide route (user's scheduled travel route) included in the browsing request received in S <b> 21 from the RAM 22.

  Next, in S32, the CPU 21 compares the position information of the guide route acquired in S31 with the position information of the point supplemented in the complementary traffic information acquired in S22. When a plurality of supplemental traffic information is acquired in S22, the processes of subsequent S32 to S37 are executed for each acquired supplemental traffic information.

  After that, in S33, the CPU 21 has a plurality of points where the guide route and the position information coincide among the points where the character string of the name and the position information are supplemented in the complementary traffic information acquired in S22 (hereinafter referred to as a complementary point). To determine. Here, when the traffic information is information on a road section as described above, the supplementary point is determined as “a point determined to have the same name as the start point character string” or “the same as the end point character string. "A point that has been determined to be included in a section of the target road by traffic information" (see FIG. 8). On the other hand, when the traffic information is information on a point on the road, it is “a point determined to have the same name as a point included in the traffic information” (see FIG. 9). Further, as described above, the guide route is specified by a series of coordinates (latitude and longitude) points from the departure point to the destination. Therefore, in S33, the CPU 21 determines whether or not there are a plurality of complementary points having the same position information as any coordinate point constituting the guide route. If the difference between the position information of the coordinate point and the complementary point is within a predetermined error range, the position information is considered to match.

  If it is determined that there are a plurality of points whose position information matches the guide route among the complementary points (S33: YES), the process proceeds to S34. On the other hand, if it is determined that there are not a plurality of points that match the guide route and the position information among the complementary points (S33: NO), the process proceeds to S36.

  In S <b> 34, the CPU 21 extracts, from the supplementary traffic information DB 13, the character strings of the names of the points determined to match the guide route and the position information among the supplementary points as search target point names. The character string to be extracted is specifically a search character string (see FIG. 5).

  Here, when it is determined that there are a plurality of points where the guide route and the position information match among the supplementary points, the entire route that is the target of the traffic information is included in the guide route 70 as shown in FIG. In other words, as shown in FIG. 14, the guide route 70 includes a part of a section that is the target of traffic information. For example, in the example shown in FIG. 13, the traffic information is information indicating that lane restrictions are occurring in the section from the point C to the point E, the start point character string is the character string of the name of the point C, and the end point character string is It is a character string of the name of the point E. Therefore, the supplementary points are “point C where the name is determined to match the start point character string”, “point E” where “the name is determined to match the end point character string”, and “other traffic” It becomes the point D that is “the point determined to be included in the section of the target road by the information”, and it is determined that all the points match the guidance route and the position information. Therefore, the names of the points C, D, and E are extracted as search target point names, respectively. 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.

  In the example shown in FIG. 14, the traffic information is information indicating that the section from the point C to the point H 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 H It is a character string of the name. Accordingly, the supplementary points are “point C that is determined to have the same name as the start point character string”, “point H that is determined to have the same name as the end point character string”, and “other traffic” It is determined that the points “D” and “E” are “the points determined to be included in the section of the target road” according to the information, and in particular, the points C, D, and E are determined to have the same guidance route and position information. Therefore, the names of the points C, D, and E are extracted as search target point names, respectively. 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 S35, the CPU 21 sets, as a search word, a combination of the character string of the spot name extracted in S34 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 “the lane restriction from XX highway, from point C to point E”, “lane restriction” is used as a word indicating the traffic situation. Is included. Therefore, a combination of “name of point C” and “lane restriction”, a combination of “name of point D” and “lane restriction”, and a combination of “name of point E” 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 (S24).

  On the other hand, in S36, the CPU 21 determines whether or not there is a point where the guide route and the position information match among the complementary points. As described above, the guide route is specified by a series of coordinates (latitude and longitude) points from the departure point to the destination. Therefore, in S36, the CPU 21 determines whether or not there is a supplementary point having the same position information as any coordinate point constituting the guide route. If the difference between the position information of the coordinate point and the complementary point is within a predetermined error range, the position information is considered to match.

  If it is determined that there is a point where the location information matches the guidance route among the complementary points (S36: YES), the process proceeds to S37. On the other hand, when it is determined that there is no point where the location information matches the guide route among the supplemental points (S36: NO), the posted message search processing program is terminated without setting a search word. .

  In S37, the CPU 21 extracts, from the complementary traffic information DB 13, a character string of the name of the point determined that the guide route and the position information match among the complementary points, as a search target point name. The character string to be extracted is specifically a search character string (see FIG. 5).

  Here, in the case where it is determined that there is only one point whose location information matches the guidance route among the supplementary points, the traffic information is information for the point, and the guidance route 70 as shown in FIG. This is a case where a point which is a target of traffic information is included. 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. Accordingly, the supplementary point is a point D that is “a point determined to match the character string of the traffic information”, and it is determined that the point D matches the guidance route and the position information. Therefore, the name of the point D 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.

Furthermore, in S35, the CPU 21 sets, as a search word, a combination of the character string of the extracted point 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 (S24).

As explained in detail above, in the posted text search system 1, the posted text search method by the posted text search system 1, and the computer program executed in the posted text search system 1, the posted text search server 3 is a character string. Is obtained periodically from the traffic information center 5 (S1), and the character string and the position information of the name of the point included in the section of the target road based on the acquired traffic information are based on the point information 25. It identifies and complements traffic information (S7). On the other hand, when a guidance route is set in the communication terminal 7, a request for browsing the posted text is transmitted to the posted text search server 3 (S13), and the posted text search server 3 that has received the browse request is supplemented. Read the traffic information (S22), set a search word from the character string of the name of the point included in the supplemented traffic information (S35), and set the search word from the posted text posted on the computer network Is searched (S24), and the searched posted message is provided (S25). Therefore, only the posted message in which the information required by the user is posted from the posted messages posted on the computer network. Can be extracted appropriately. As a result, it becomes possible to grasp the more detailed traffic situation at the present time, which cannot be specified only from the distributed traffic information, 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 for a road section, the name of the point included in the target road section is acquired from the traffic information from the position information of the start point of the section, the position information of the end point of the section, and the point information. Therefore, it is possible to specify the character string of the name of another point between the start point and the end point even from the traffic information that specifies only the start point and the end point of the section. Therefore, the character string of the name of another point between the start point and the end point can also be set as a search word, and it becomes possible to appropriately extract a posted sentence in which information required by the user is posted. .
In addition, since the name of the point included in the planned travel route among the names of the points included in the road section targeted by the traffic information is set in the search word, information related to the planned travel route of the user (for example, It is possible to grasp traffic jams, accidents, etc. on the planned travel route) at a faster timing via the posted text.
In addition, the planned travel route is acquired as numerical location information, and among the names of points included in the target road section by the communication information, the name of the location whose location information matches the planned travel route is used as a search word. Therefore, by comparing the position information, it is possible to accurately specify all the points located within the overlapping range of the planned travel route and the traffic information target section.

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 processes of S1 to S7 of the traffic information supplement processing program (FIG. 7) and the processes of S21 to S25 of the posted text search processing program (FIG. 10). The traffic information center 5, the posted text information management server 4, and the communication terminal 7 may be configured to execute 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.

  In the present embodiment, the name of the point included in the planned travel route is set as the search word among the names of the points included in the road sections and points targeted by the traffic information. It is good also as setting the name of all the points included in the section and point of the road used as traffic object by traffic information irrespective of a route. In that case, the structure which acquires a driving planned route becomes unnecessary. Further, when there are a plurality of traffic information, the name of a point included in a target road section or point according to the traffic information selected by the user may be set as a search word.

  Further, in the present embodiment, in the case of an expressway, it is determined whether the position information of the point and the position information of the guide route match in consideration of the traveling direction. You may perform a coincidence determination only from a position coordinate, without considering.

  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 (7)

Traffic information acquisition means for acquiring traffic information consisting of character strings;
Point information acquisition means for acquiring point information in which a name and position information are associated with each point;
Based on the character string of the traffic information and the point information, point name acquisition means for acquiring the name of the point included in the section of the road targeted by the traffic information by a character string,
Search condition setting means for setting a search word from a character string of the name of the spot acquired by the spot name acquisition means;
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. When the traffic information is information on a road section, the traffic information includes a start point character string that is a character string of a point name corresponding to the start point of the section and a character string of a point name corresponding to the end point of the section. Including the end point string,
Start point position specifying means for specifying position information of the start point of the section from the start point character string and the point information;
End point position specifying means for specifying position information of the end point of the section from the end point character string and the point information,
The point name acquisition means acquires the name of a point included in a section of a target road by the traffic information from the position information of the start point of the section, the position information of the end point of the section, and the point information. The posted text search system according to claim 1. Having a planned travel route acquisition means for acquiring the planned travel route of the user;
The said search condition setting means sets the name of the spot contained in the said driving planned route among the name of the spot acquired by the said spot name acquisition means to the said search word, The claim 1 or Claim characterized by the above-mentioned. Item 3. The posted text search system according to item 2. The planned travel route is acquired as position information consisting of numerical values,
On the basis of the character string of the traffic information and the point information, there is a point position acquisition means for acquiring position information of a point included in a section of the target road by the traffic information,
The search condition setting means sets, in the search word, a name of a spot whose position information coincides with the planned travel route among the spot names acquired by the spot name acquisition means. 3. The posted text search system according to 3. Traffic information acquisition means for acquiring traffic information consisting of character strings;
Point information acquisition means for acquiring point information in which a name and position information are associated with each point;
Based on the character string of the traffic information and the point information, point name acquisition means for acquiring the name of the point included in the section of the road targeted by the traffic information by a character string,
Search condition setting means for setting a search word from a character string of the name of the spot acquired by the spot name acquisition means;
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 point information acquisition step for acquiring point information in which a name and position information are associated with each point;
Based on the character string of the traffic information and the point information, a point name acquisition step of acquiring the name of the point included in the section of the road targeted by the traffic information by a character string;
A search condition setting step for setting a search word from a character string of the name of the point acquired by the point name acquiring step;
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 point information acquisition function for acquiring point information in which a name and position information are associated with each point;
Based on the character string of the traffic information and the point information, a point name acquisition function for acquiring the name of a point included in a section of the road targeted by the traffic information by a character string,
A search condition setting function for setting a search word from a character string of the name of the spot acquired by the spot name acquisition function;
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

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