WO2015012029A1 - 投稿文検索システム、投稿文検索装置、投稿文検索方法及びコンピュータプログラム - Google Patents
投稿文検索システム、投稿文検索装置、投稿文検索方法及びコンピュータプログラム Download PDFInfo
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- WO2015012029A1 WO2015012029A1 PCT/JP2014/066127 JP2014066127W WO2015012029A1 WO 2015012029 A1 WO2015012029 A1 WO 2015012029A1 JP 2014066127 W JP2014066127 W JP 2014066127W WO 2015012029 A1 WO2015012029 A1 WO 2015012029A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3691—Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/242—Query formulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2457—Query processing with adaptation to user needs
- G06F16/24575—Query processing with adaptation to user needs using context
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/248—Presentation of query results
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
- H04W4/022—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences with dynamic range variability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
Definitions
- 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.
- a system in which a user can post posted texts on a computer network via a terminal and can browse posted texts posted by other users.
- SNS Social Network Service
- Twitter registered trademark
- chat chat and the like
- these posted texts include many posted texts that post information related to traffic information such as traffic jam information and traffic stop information.
- position information and address information are extracted from the DB for all search points corresponding to the input keyword, and text data is generated from the extracted position information and address information. Will be output.
- the number of search points may be very large. For example, if a search is performed using “convenience store” or “parking lot” as a keyword in an urban area, the number of search points is expected to be very large. Therefore, there is a problem that processing load and search time related to search increase, and information that is not required by the user is also output. Furthermore, it has become necessary to filter the search results.
- the present invention has been made to solve the above-described conventional problems, and appropriately extracts only the posted text on which the information required by the user is posted from the posted text posted on the 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 make it possible.
- the posted text search system (1), the posted text search device, the posted text search method, and the computer program according to the present invention require a user among a large number of posted texts posted on a computer network.
- a posting program search method for searching for a posted message using the system and apparatus, and a computer program for realizing the following functions for the device Specifically, a planned movement route of a moving body such as a vehicle is acquired, and it is determined whether or not there is a traffic congestion factor facility that is a factor causing traffic congestion around the planned movement route.
- the posted text search system (1) may have the following configuration. Specifically, a planned movement route of a moving object such as a vehicle is acquired, and an approaching intersection road that is a road that intersects the planned movement path and that the moving object can enter from the planned movement path is acquired. Next, it is determined whether there is a traffic congestion factor facility that is a facility that causes traffic congestion around the approaching intersection road, and if it is determined that there is a traffic congestion factor facility around the approaching intersection road, A near intersection road that is a road that is closer to the moving body than the intersection of the approaching intersection road and intersects the planned movement route is acquired. Thereafter, the name of the front crossing road is acquired as a search target name, and a search word is set from a character string of the acquired search target name. Then, a posted sentence corresponding to the set search word is extracted from the posted sentences posted on the computer network.
- the user's planned travel route is based on the facility that causes traffic congestion and the surrounding road shape. It is possible to set the name of an intersection road that is likely to be congested among the intersection roads that intersect with the search word. As a result, by using the set search word, it is possible to appropriately extract only the posted text on which the information required by the user is posted from the posted text posted on the computer network. In particular, it is possible to grasp traffic information related to the user's planned travel route, more specifically, traffic information on intersection roads that affect the flow of vehicles on the planned travel route at a faster timing via posted text. It becomes possible. 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 a first embodiment. It is the block diagram which showed the structure of the posting text search system which concerns on 1st Embodiment. It is the figure which showed an example of the contribution text information memorize
- FIG. 1 is a schematic configuration diagram showing a posted text search system 1 according to the first embodiment.
- FIG. 2 is a block diagram showing the configuration of the posted text search system 1 according to the first embodiment.
- the posted text search system 1 includes a posted text search server (posted text search device) 3 included in the posted text management center 2 and a posted text similarly included in the posted text management center 2.
- the information management server 4 and the communication terminal 7 owned by the user 6 are basically configured.
- 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 and the communication terminal 7 are configured to be able to transmit and receive electronic data to and from each other via the communication network 8.
- the posted message search server 3 is based on the planned travel route of the user 6, the surrounding road shape, and the facility information. Then, the search condition is set, and the posted text that has posted the content related to the user 6 who has requested the information is extracted from the posted text stored in the posted text information management server 4, and the information related to the extracted posted text Is delivered to the communication terminal 7 to enable the user 6 to view the contents of the posted text. 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. 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 message information management server 4 has a posted message information DB 9 as a storage medium, and posted posted messages are sequentially stored in the posted message 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.
- 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.
- 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 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.
- GPS that is, the current position of the user 6
- 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. 7). Details of the communication terminal 7 will be described later.
- RF transmission / reception circuit unit
- 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.
- 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.
- 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. 6) described later are stored.
- 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.
- the planned movement route acquisition unit acquires a planned movement route of a moving body such as a vehicle.
- the traffic congestion facility determination unit determines whether there is a traffic congestion factor facility that is a facility that causes traffic congestion around the planned travel route.
- the near intersection road acquisition unit acquires a near intersection road that is closer to the moving body than the congestion factor facility and intersects the planned travel route.
- the search target name acquisition means acquires the name of the front crossing road as the search target name.
- the search condition setting means sets a search word from the character string of the search target name acquired by the search target name acquisition 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 interval acquisition means acquires an arrangement interval between the first front intersection road and the second front intersection road.
- the road width acquisition means acquires the road widths of the first front intersection road and the second front intersection road, respectively.
- the map information DB 12 is a storage means for storing map information.
- the map information stored in the map information DB 12 includes various information necessary for route search and map display including a road network.
- link data 25 relating to roads (links), node points, and the like.
- the map information DB 12 is periodically updated to new map information.
- the link data 25 for example, a link ID for identifying the link, end node information for specifying a node located at the end of the link, road type of the road formed by the link, road width, road The name and the like are stored.
- intersection data 26 node IDs of nodes constituting the intersection, intersection names, presence / absence of turn restrictions, and the like are stored.
- the facility data 27 indicates whether or not the facility corresponds to a traffic congestion factor facility that is a factor causing traffic congestion.
- FIG. 4 is a diagram showing an example of the facility data 27.
- the facility data 27 includes a facility ID, a facility name, a facility type (genre), location information (latitude and longitude) that identifies the location of the facility, and whether or not it corresponds to a congestion factor facility.
- Flag information is included. For example, in the example shown in FIG. 4, it is shown that two facilities “XX home center” and “XX cafe” are congestion factor facilities. Then, the information management ECU 11 predicts that the intersection road that intersects the planned movement route is congested on the near side of the congestion factor facility when there is a congestion factor facility around the planned movement route of the user 6 as described later, Set the name of the intersection road as the 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 facility data 27 by communication from the external server.
- the center communication device 13 is a communication device for communicating with the communication terminal 7 via the communication network 8. In the first embodiment, information related to the posted text is transmitted to and received from the communication terminal 7 via the center communication device 13.
- FIG. 5 is a block diagram schematically showing a control system of the communication terminal 7 according to the first embodiment.
- 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 signals to / from a base station of the network 8, and converts a radio frequency (RF) signal received by the transmission / reception circuit unit 33 into a baseband signal and converts the baseband signal into an RF signal
- RF radio frequency
- 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.
- the CPU 31 built in the communication terminal 7 is a control means 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.
- 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 the guide route (scheduled travel route of the user 6), a posted text search processing program (FIG. 6) described later, and the like are stored.
- 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.
- link data related to roads (links) and node data related to node points. Intersection data regarding each intersection, facility data regarding facilities, map display data for displaying a map, search data for searching for a route, search data for searching for a point, 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.
- map images including roads, traffic information, guidance routes from the departure point to the destination (scheduled movement route), guidance information along the guidance route, etc. Is displayed.
- information related to the posted text received from the posted text management center 2 (the text content of the posted text, the poster's ID, etc.) is also displayed.
- the input operation unit 39 is configured 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, in the first embodiment, it 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.
- the transmission / reception circuit unit 33 is configured to be able to communicate with the posted text management center 2 via the communication network 8. Then, it is possible to acquire traffic information such as traffic jam information, regulation information, traffic accident information, etc. via an external traffic information center (for example, VICS (registered trademark) center) not shown. 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.
- VICS registered trademark
- FIG. 6 is a flowchart of the posted text search processing program according to the first embodiment.
- 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.
- the programs shown in the flowcharts of FIGS. 6 and 8 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.
- step (hereinafter abbreviated as S) 1 the CPU 31 determines whether or not a destination setting operation has been performed in the navigation application.
- 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.
- 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 a planned travel route for the user 6 (a vehicle when the user 6 is on the vehicle).
- 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.
- the CPU 31 transmits a posted text browsing request to the posted text search server 3.
- 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 sentence that posted the content to be" is extracted (S12 to S14).
- 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.
- the CPU 31 displays information on the posted text received in S4 on the display 38 together with the guidance route acquired in S2.
- 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.
- the posted sentences are switched and displayed by a scroll operation.
- a posted message posted at a position close to the user may be displayed with priority.
- the posted text determined to have a high degree of matching with the search word in the search process (S13) described later may be displayed with priority. It should be noted that only the left screen 52 is displayed without displaying the right screen 53, and the corresponding posted message information display spaces 61 to 64 are newly added after the posting position marks 57 to 60 on the left screen 52 are selected. You may comprise so that it may arrange
- the user can view the content of the posted text that posted the content related to the user 6 by viewing the posted text guide screen 51 shown in FIG.
- the name of the intersection road that intersects the guide route on the near side of the congestion factor facility is set in the search word. It becomes possible to grasp the traffic information related to the vehicle (more specifically, the traffic information on the crossing road that affects the flow of vehicles on the guide route) at a faster timing.
- 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 (scheduled movement route of the user 6) 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.
- the CPU 21 executes a search word setting process (FIG. 8) described later.
- the search word setting process is posted on the computer network based on the position information of the guide route included in the browsing request received in S11 and the map information including information on the congestion factor facility and the surrounding road shape. This is a process for setting a search word for searching for “posted text posting content related to the user 6 who has requested browsing of the posted text” from the posted text.
- the CPU 21 uses the search word set in S12 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 S12 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.
- the CPU 21 transmits the information on the posted message extracted in S13 to the communication terminal 7 that has requested browsing of the posted message.
- 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).
- FIG. 8 is a flowchart of a sub-processing program for search word setting processing according to the first embodiment.
- the CPU 21 reads out the position information of the guide route (the user's planned travel route) included in the browsing request received in S11 from the RAM 22.
- the lane side on which the vehicle travels on the guide route with respect to the guide route is the left side of the direction of travel with respect to the guide route in the left-hand traffic region, and the direction of travel with respect to the guide route in the right-hand traffic region.
- the congestion factor facility in the area A is extracted in the left-hand traffic area
- the congestion factor facility in the area B is extracted in the right-hand traffic area.
- both the region A and the region B are on the lane on which the vehicle travels on the guide route 70, and a congestion factor facility is extracted for both regions.
- the CPU 21 is closer to the user side (i.e., the starting point side of the guide route) than the congestion factor facility based on the position of the congestion factor facility extracted in S22 and the link data 25 stored in the map information DB 12.
- the road that intersects the guide route most on the side of the congestion factor facility is identified as the first front intersection road, and information on the identified first front intersection road (link of the link constituting the cross road) ID, road type, road width, road name, etc.).
- the CPU 21 determines that the user is on the user side (that is, the start point side of the guidance route) from the traffic congestion factor facility based on the position of the traffic congestion factor facility extracted in S22 and the link data 25 stored in the map information DB 12. )
- the road that intersects the guide route on the traffic congestion factor facility side next to the first front cross road among the roads crossing the guide route is identified as the second front cross road, and the second front cross road identified Information (link ID, road type, road width, road name, etc.) of the link constituting the intersection road is acquired.
- intersection roads 74 and 75 are connected to the guide route 70 at an intersection 73
- intersection roads 77 and 78 are connected at an intersection 76
- intersection roads 80 and 81 are connected at an intersection 79
- intersect at an intersection 82 A case where the roads 83 and 84 are connected and the congestion factor facility 85 extracted in S22 is located along the guide route 70 between the intersection 76 and the intersection 73 will be described.
- the cross roads 77, 78, 80, 81, 83, 84 on the user side from the congestion factor facility 85 the cross roads 77, 78 that intersect the guide route 70 on the most congestion factor facility 85 side.
- first cross road Is identified as the first cross road.
- 81 are identified as the second front intersection road.
- the first front intersection road and the second front intersection road may be provided on the condition that they are roads having a predetermined width or more (for example, a general road or more) in order to exclude narrow streets and the like.
- the CPU 21 determines that the first front crossing road and the second front crossing are based on the information about the first front crossing road acquired in S23 and the information about the second front crossing road acquired in S24.
- the road arrangement interval is specified, and it is determined whether or not the arrangement interval is greater than or equal to a predetermined threshold. For example, in the example shown in FIG. 11, it is determined whether or not the arrangement interval L between the intersection roads 77 and 78 and the intersection roads 80 and 81 is greater than or equal to a threshold value.
- the threshold value used as the determination criterion in S25 is stored in a storage medium such as the RAM 22, and is appropriately set based on the size of the traffic congestion factor facility, the guide route, the road type of the first front crossing road, the second front crossing road, and the like. Is done. For example, it is set to 500 m. Further, the threshold may be configured to be changeable depending on the scale of the congestion factor facility. For example, the threshold value is changed to a larger value as the size of the congestion factor facility is larger.
- the process proceeds to S26.
- the CPU 21 predicts that there is a high possibility that the first front crossing road is congested due to a vehicle heading to the congestion factor facility.
- the CPU 21 acquires the name of the first front intersection road as a search target name. Then, the combination of the acquired character string of the name of the first front crossing road and the character string “traffic jam” is set as a search word. For example, in the example illustrated in FIG. 11, the names of the intersection roads 77 and 78 are acquired as search target names. Accordingly, a combination of “name of intersection roads 77 and 78” and “traffic jam” is set as a search word.
- the approaching intersection road As the name of the approaching intersection road, if the approaching intersection road is a national road or a prefectural road, it may be a number (for example, National Route 1), a street name (for example, Meiji-dori), or an abbreviation (for example, ring 7). ) After that, 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 (S13).
- the CPU 21 determines that the road width of the second front crossing road is the first based on the information on the first front crossing road acquired in S23 and the information on the second front crossing road acquired in S24. It is determined whether or not the width of the front crossing road is wider. For example, in the example shown in FIG. 11, it is determined whether or not the road widths of the intersection roads 80 and 81 are wider than the road widths of the intersection roads 77 and 78.
- the process proceeds to S28.
- the CPU 21 may be congested because the second front crossing road having a wider road width than the first front crossing road having a narrow road travels with more vehicles heading to the congestion factor facility. Expect to be high.
- the CPU 21 acquires the name of the second front intersection road as a search target name. Then, the combination of the acquired character string of the name of the second front crossing road and the character string “traffic jam” is set as a search word. For example, in the example illustrated in FIG. 11, the names of the intersection roads 80 and 81 are acquired as search target names. Accordingly, a combination of “name of intersection roads 80 and 81” and “traffic jam” is set as a search word.
- 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 communication terminal 7 has a guide route.
- the posted message browsing request is transmitted to the posted message search server 3 (S3), and the posted message search server 3 that has received the browse request is a facility that causes traffic congestion around the guidance route.
- the first front crossing road that is on the user side from the congestion factor facility and intersects the guidance route And the second front crossing road is acquired (S23, S24), and the combination of “name of first front crossing road or second front crossing road” and “traffic jam” is set as a search word (S26).
- S28) The posted text including the set search word is searched from the posted text posted on the computer network (S13), and the searched posted text is provided (S14), which causes a traffic jam.
- the schematic configuration of the posted text search system according to the second embodiment is substantially the same as the posted text search system 1 according to the first embodiment.
- Various control processes are substantially the same as the posted text search system 1 according to the first embodiment.
- the posted text search system 1 according to the first embodiment has a congestion factor facility around the guide route, the name of the intersection road on the near side of the facility is set as the search word in the congestion factor.
- the posted text search system according to the second embodiment when there is a congestion factor facility around the intersection road that intersects the guide route, the name of the intersection road on the near side of the intersection road is set as a search word. This is different from the posted text search system 1 according to the first embodiment.
- FIG. 12 is a flowchart of a sub-processing program for search word setting processing according to the second embodiment.
- the CPU 21 reads out the position information of the guide route (the user's planned travel route) included in the browsing request received in S11 from the RAM 22.
- the CPU 21 specifies an intersection included in the guide route based on the position information of the guide route read out in S31 and the intersection data 26 stored in the map information DB 12, and information on the specified intersection. (Node IDs of nodes constituting intersections, intersection names, etc.) are acquired.
- the CPU 21 determines an intersection road that intersects the guide route at the intersection specified in S32 based on the position information of the guide route read in S31 and the link data 25 stored in the map information DB 12.
- the information regarding the identified intersection road (link ID of the link constituting the intersection road, road type, road width, road name, etc.) is acquired.
- the CPU 21 specifies an approaching intersection road that is a road on which a vehicle traveling on the guidance route can enter from the guidance route among the intersection roads identified in S33 based on the intersection data 26 and the link data 25.
- an approaching intersection road that is a road on which a vehicle traveling on the guidance route can enter from the guidance route among the intersection roads identified in S33 based on the intersection data 26 and the link data 25.
- the crossing roads 102 and 103 have no restriction on the traveling direction, but the crossing roads 105 and 106 have a one-way restriction. Accordingly, a vehicle traveling on the guide route 100 can enter the cross roads 102, 103, and 106, but cannot enter the cross road 105. Therefore, the intersection roads 102, 103, and 106 are specified as approach intersection roads.
- the approach intersection road is specified in consideration of restrictions such as vehicle entry prohibition and pedestrian exclusive use.
- the CPU 21 extracts a congestion factor facility around the approaching intersection road specified in S34.
- the process of S35 is executed for each identified approaching intersection road.
- the congestion factor facility around the approaching intersection road also covers the congestion factoring facility along the road that intersects the approaching intersection road or along the parallel road. Is desirable.
- the congestion factor facility along the approaching intersection road 103 as shown in FIG. 14 the congestion factor facility along the road 107 intersecting the approaching intersection road 103 and the parallel running road 108 is also extracted. However, it is a condition that the congestion factor facility is within a predetermined distance W (for example, 100 m) from the approaching intersection road 103.
- the congestion factor facility to be extracted in S35 is not greatly separated from the guide route.
- it may be a condition that it is within a predetermined distance T (for example, 1 km) from the guide route 100, or as shown in FIG. 15, the approaching intersection road 103 is a predetermined width or more (for example, a general road or more). It is good also as a condition that it exists in the range until it intersects with this road 109. Further, it is not necessary to provide a condition of a predetermined width or more.
- the CPU 21 compares the position of the congestion factor facility extracted in S35 with the position of the approaching intersection road, thereby causing the congestion factor facility on the lane side on which the vehicle that has entered the guide route from the guidance route travels. It is determined whether there is. That is, it is determined whether there is a congestion factor facility on the left side when viewed from the guidance route side with respect to the approaching intersection road in the left-hand traffic area, and on the right side when viewed from the guidance route side with respect to the approaching intersection road in the right-hand traffic area. It is determined whether or not there is a congestion factor facility. For example, as shown in FIG.
- the CPU 21 determines the guidance route and the approaching intersection road based on the position of the approaching intersection road determined to have a traffic congestion factor facility on the traveling lane side of the vehicle in S36 and the link data 25 stored in the map information DB12.
- the roads that are closer to the user side (that is, the starting point side of the guidance route) than the intersection (hereinafter referred to as the approaching intersection) and intersect the guidance route the road that intersects the guidance route on the most approaching intersection side is the first front intersection road.
- the information related to the identified first front crossing road (link ID, road type, road width, road name, etc. of the link constituting the crossing road) is acquired.
- the CPU 21 also enters the intersection based on the position of the approaching intersection road that is determined to have a traffic congestion factor facility on the vehicle lane side in S36 and the link data 25 stored in the map information DB 12.
- the roads that are closer to the user (that is, the start point side of the guide route) and intersect with the guide route the road that intersects the guide route on the approach intersection side next to the first front cross road is identified as the second front cross road
- the information (Link ID of the link which comprises a cross road, road classification, road width, road name, etc.) regarding the specified 2nd front cross road is acquired.
- the threshold value used as the determination criterion in S39 is stored in a storage medium such as the RAM 22, and is appropriately set based on the size of the traffic congestion factor facility, the guidance route, the road type of the first front crossing road, the second front crossing road, and the like. Is done. For example, it is set to 500 m. Further, the threshold may be configured to be changeable depending on the scale of the congestion factor facility. For example, the threshold value is changed to a larger value as the size of the congestion factor facility is larger.
- the CPU 21 acquires the name of the first front intersection road as a search target name. Then, the combination of the acquired character string of the name of the first front crossing road and the character string “traffic jam” is set as a search word. For example, in the example illustrated in FIG. 17, the names of the intersection roads 105 and 106 are acquired as search target names. Therefore, a combination of “name of intersection roads 105 and 106” and “traffic jam” is set as a search word.
- the name of the approaching intersection road if the approaching intersection road is a national road or a prefectural road, it may be a number (for example, National Route 1), a street name (for example, Meiji-dori), or an abbreviation (for example, ring 7). ) After that, 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 (S13).
- the CPU 21 determines that the road width of the second front crossing road is the first based on the information on the first front crossing road acquired in S37 and the information on the second front crossing road acquired in S38. It is determined whether or not the width of the front crossing road is wider. For example, in the example shown in FIG. 17, it is determined whether or not the road widths of the intersection roads 111 and 112 are wider than the road widths of the intersection roads 105 and 106.
- the process proceeds to S42.
- the CPU 21 travels more frequently on the second front crossing road having a wider road than the first front crossing road having a narrower road width to the congestion factor facility via the guide route. Predict that it is likely
- the process proceeds to S40.
- the CPU 21 predicts that there is a high possibility that the first cross road closer to the congestion factor facility travels to the congestion factor facility via the guide route and is congested. .
- the CPU 21 acquires the name of the second front intersection road as a search target name. Then, the combination of the acquired character string of the name of the second front crossing road and the character string “traffic jam” is set as a search word. For example, in the example illustrated in FIG. 17, the names of the intersection roads 111 and 112 are acquired as search target names. Therefore, a combination of “name of intersection roads 111 and 112” and “traffic jam” is set as a search word.
- a guide route is set in the communication terminal 7.
- the posted message browsing request is transmitted to the posted message search server 3 (S3), and the posted message search server 3 that has received the browse request is a road that intersects the guide route and travels along the guide route.
- An approaching intersection road that is a road that the vehicle can enter from the guidance route is acquired (S34), and it is determined whether there is a traffic congestion factor facility that is a factor that causes traffic congestion around the approaching intersection road (S36).
- the first intersection road and the second intersection road that are on the user side from the approach intersection and intersect the guide route The difference road is acquired (S37, S38), and the combination of “name of first or second intersection road” and “traffic jam” is set as a search word (S40, S42) and posted on the computer network. From the posted text, the posted text including the set search word is searched (S13), and the retrieved posted text is provided (S14). Therefore, based on the facility causing the traffic jam and the surrounding road shape The name of an intersection road that is likely to be congested among the intersection roads that intersect the user's scheduled travel route can be set as a search word.
- the set search word it is possible to appropriately extract only the posted text on which the information required by the user is posted from the posted text posted on the computer network.
- traffic information related to the user's planned travel route more specifically, traffic information on intersection roads that affect the flow of vehicles on the planned travel route at a faster timing via posted text. It becomes possible.
- the operability can be improved.
- the posted text search server 3 executes the processes of S11 to S14 of the posted text search processing program (FIG. 6). 7 may be configured to execute part or all of the processing.
- route a configuration may be adopted in which the departure point and the destination set in the communication terminal 7 are transmitted instead of the guidance route. 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, routes other than the guide route may be used as the user's planned travel route. For example, a route assumed that the user moves along the road from the current position may be specified as the user's planned travel route.
- the user's planned travel route may be specified from the user's past travel history.
- the planned travel route may be a planned travel route by a vehicle or a planned travel route by a moving means other than the vehicle (for example, a train, a bicycle, a walk, etc.).
- only one of the combination of “name of the first crossing road” and “congestion” or the combination of “name of the second crossing road” and “congestion” is used. Is set as a search word, but a combination of both may be set as a search word. Furthermore, a character string (for example, “congestion”) indicating a traffic situation other than “congestion” may be set as a search word instead of “congestion”. In addition, instead of “name of the first front crossing road”, “name of the intersection between the guide route and the first front crossing road” may be set as a search word, and instead of “name of the second front crossing road”. “The name of the intersection of the guide route and the second front intersection road” may be set as a search word.
- the posted text when the posted text is posted, the posted text is posted as information about the posted text in the posted text information management server 4 together with the posted text. However, it is also possible to store only the text of the posted text.
- the embodiment of the posted text search system according to the present invention has been described above.
- the posted text search system can also have the following configuration, and in that case, the following effects can be obtained.
- the first configuration is as follows.
- the front intersection road acquisition means acquires the road that intersects the planned travel route on the traffic congestion factor facility side (or the intersection side) as the first front intersection road, and the traffic factor factor facility side (or next to the first front intersection road)
- the road that intersects the planned travel route on the intersection side) is acquired as the second front intersection road
- the search target name acquisition means acquires the name of at least one of the first front cross road and the second front cross road as the search target name.
- the posted text search system having the above-described configuration, the roads on which the vehicle heading to the congestion factor facility via the planned travel route is likely to travel are identified as the first front crossing road and the second front crossing road, respectively. It is possible. Then, by including the road names of those roads in the search word, it is possible to appropriately extract the posted text on which the traffic information on the intersecting road that affects the flow of vehicles on the planned travel route is posted.
- the second configuration is as follows. It has interval acquisition means for acquiring the arrangement interval between the first front intersection road and the second front intersection road, and the search target name acquisition means is such that the arrangement interval between the first front intersection road and the second front intersection road is greater than or equal to a threshold value.
- the name of the first front crossing road is acquired as the search target name.
- the first crossing road that is particularly close to the traffic congestion factor facility is identified as a road that is more likely to travel to the traffic congestion factor facility via the planned travel route. Is possible.
- the road name of the first previous intersection road in the search word it is possible to appropriately extract a posted sentence in which traffic information on the intersection road that affects the flow of vehicles on the planned travel route is posted.
- the third configuration is as follows. It has road width acquisition means for acquiring the road widths of the first front intersection road and the second front intersection road, respectively, and the search target name acquisition means has an arrangement interval between the first front intersection road and the second front intersection road that is less than a threshold value. In this case, the name of the road having the larger road width out of the first front crossing road and the second front crossing road is acquired as the search target name.
- the roads that are more likely to travel to the traffic congestion factor facility via the planned travel route are the first and second cross roads. In particular, it is possible to identify an intersection road having a wider road width. By including the road name of the intersecting road in the search word, it is possible to appropriately extract a posted sentence in which traffic information on the intersecting road that affects the flow of vehicles on the planned travel route is posted.
- the fourth configuration is as follows.
- the congestion facility determination means is around the planned travel route (or approaching intersection road) and enters the travel planned route (or approaching intersection road) on the lane side (or the planned travel route) on which the vehicle travels. It is characterized in that it is determined whether or not there is a congestion factor facility on the lane on which the vehicle has traveled.
- the posted text search system having the above-described configuration, when a lane entering the congestion factor facility from the near intersection road via the planned travel route is highly likely to be jammed by a vehicle entering the congestion factor facility, It is possible to appropriately extract a posted sentence in which information related to the traffic jam is posted.
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Abstract
Description
尚、「移動体」は、車両の他、2輪車やユーザ自身(人)であっても良い。
また、「渋滞の要因となる施設」とは、該施設が原因で周辺の道路に渋滞を生じさせる虞のある施設、より具体的には該施設に進入する為の車両が原因で周辺の道路に渋滞を生じさせる虞のある施設であり、例えば、集客力の高い大規模の商業施設、TVや雑誌等のメディアに紹介されてから間もない施設等が該当する。
具体的には、車両等の移動体の移動予定経路を取得し、移動予定経路と交差する道路であって、移動体が移動予定経路から進入可能な道路である進入交差道路を取得する。次に、進入交差道路の周辺に渋滞の要因となる施設である渋滞要因施設があるか否か判定し、進入交差道路の周辺に渋滞要因施設があると判定された場合に、移動予定経路と進入交差道路の交差点より移動体側にあって移動予定経路と交差する道路である手前交差道路を取得する。その後、手前交差道路の名称を検索対象名称として取得し、取得された検索対象名称の文字列から検索ワードを設定する。そして、コンピュータネットワーク上に投稿された投稿文の内から、設定された検索ワードに該当する投稿文を抽出する。
先ず、第1実施形態に係る投稿文検索システム1の概略構成について図1及び図2を用いて説明する。図1は第1実施形態に係る投稿文検索システム1を示した概略構成図である。図2は第1実施形態に係る投稿文検索システム1の構成を示したブロック図である。
ここで、基地局は通信端末7との通信をするトランシーバー(送受信機)とアンテナを有する。そして、基地局は通信会社の間で無線通信を行う一方、通信ネットワーク網8の末端となり、基地局の電波が届く範囲(セル)にある通信端末7の通信を投稿文管理センタ2との間で中継する役割を持つ。
ステップ(以下、Sと略記する)1においてCPU31は、ナビゲーションアプリにおいて目的地の設定操作が行われたか否かを判定する。
そして、左画面52は、ユーザ周辺の地図画像54と、ユーザの現在位置を示す現在位置マーク55と、案内経路56と、表示された投稿文の投稿位置を示す投稿位置マーク57~60とから構成される。
また、右画面53には、投稿文に関する情報を表示する情報表示スペース61~64が設けられている。各情報表示スペース61~64には、投稿文を投稿した投稿者のIDと。投稿文の文章内容をそれぞれ表示する。また、投稿文が多数ある場合には、スクロール操作によって投稿文を切り替えて表示するように構成することが望ましい。また、投稿文に関する情報を表示する際には、ユーザに近い位置で投稿された投稿文を優先して表示するようにしても良い。更に、後述の検索処理(S13)において検索ワードに対する一致度合が高いと判定された投稿文を優先して表示するようにしても良い。尚、右画面53を表示せずに、左画面52のみを表示する構成とし、左画面52の投稿位置マーク57~60が選択された後に対応する投稿文の情報表示スペース61~64を新たに画面上に配置するように構成しても良い。また、投稿位置マーク57~60を表示しない構成としても良い。
先ず、S11においてCPU21は、投稿文の閲覧を要求するユーザ6から送信された閲覧要求を受信する。尚、閲覧要求には、閲覧要求の送信元である通信端末7を特定するIDや通信端末7において設定された案内経路(ユーザ6の移動予定経路)の位置情報が含まれる。また、受信した閲覧要求に含まれる案内経路の位置情報は、RAM22等の記憶媒体に一旦格納される。
図11では、案内経路70に対して交差点73で交差道路74、75が接続され、交差点76で交差道路77、78が接続され、交差点79で交差道路80、81が接続され、交差点82で交差道路83、84が接続され、交差点76と交差点73の間の案内経路70沿いに前記S22で抽出された渋滞要因施設85がある場合について説明する。図11に示す例では、渋滞要因施設85よりユーザ側にある交差道路77、78、80、81、83、84の内、最も渋滞要因施設85側で案内経路70と交差する交差道路77、78が第1手前交差道路として特定される。また、渋滞要因施設85よりユーザ側にある交差道路77、78、80、81、83、84の内、第1手前交差道路の次に渋滞要因施設85側で案内経路70と交差する交差道路80、81が第2手前交差道路として特定される。
尚、第1手前交差道路及び第2手前交差道路は、細街路等を除外する為に所定幅以上(例えば一般道以上)の道路であることを条件としても良い。
その後、設定された検索ワードに基づいて、コンピュータネットワーク上に投稿された投稿文の内から、検索ワードを含む投稿文を検索する検索処理を実行する(S13)。
次に、第2実施形態に係る投稿文検索システムについて図12乃至図17に基づいて説明する。尚、以下の説明において上記図1乃至図11の第1実施形態に係る投稿文検索システム1の構成と同一符号は、前記第1実施形態に係る投稿文検索システム1等の構成と同一あるいは相当部分を示すものである。
ただし、第1実施形態に係る投稿文検索システム1が、案内経路の周辺に渋滞要因施設がある場合に、渋滞要因に施設よりも手前側にある交差道路の名称を検索ワードに設定するのに対し、第2実施形態に係る投稿文検索システムは、案内経路と交差する交差道路の周辺に渋滞要因施設がある場合に、該交差道路よりも手前側にある交差道路の名称を検索ワードに設定する点で第1実施形態に係る投稿文検索システム1と異なっている。
図17では、案内経路100に対して交差点101で交差道路102、103が接続され、交差点104で交差道路105、106が接続され、交差点110で交差道路111、112が接続され、進入交差道路である交差道路103沿いに前記S35で抽出された渋滞要因施設113がある場合について説明する。図17に示す例では、進入交差点101よりユーザ側にある交差道路105、106、111、112の内、最も進入交差点101側で案内経路100と交差する交差道路105、106が第1手前交差道路として特定される。また、進入交差点101よりユーザ側にある交差道路105、106、111、112の内、第1手前交差道路の次に進入交差点101側で案内経路100と交差する交差道路111、112が第2手前交差道路として特定される。
尚、第1手前交差道路及び第2手前交差道路は、細街路等を除外する為に所定幅以上(例えば一般道以上)の道路であることを条件としても良い。
その後、設定された検索ワードに基づいて、コンピュータネットワーク上に投稿された投稿文の内から、検索ワードを含む投稿文を検索する検索処理を実行する(S13)。
例えば、第1実施形態及び第2実施形態では投稿文検索処理プログラム(図6)のS11~S14の処理を投稿文検索サーバ3が実行する構成としているが、投稿文情報管理サーバ4や通信端末7が一部または全部の処理を実行する構成としても良い。
手前交差道路取得手段は、最も渋滞要因施設側(又は交差点側)で移動予定経路と交差する道路を第1手前交差道路として取得するとともに、第1手前交差道路の次に渋滞要因施設側(又は交差点側)で移動予定経路と交差する道路を第2手前交差道路として取得し、検索対象名称取得手段は、第1手前交差道路及び第2手前交差道路の少なくとも一方の名称を検索対象名称として取得する。
上記構成を有する投稿文検索システムによれば、移動予定経路を経由して渋滞要因施設へと向かう車両が走行する可能性の高い道路をそれぞれ第1手前交差道路及び第2手前交差道路として特定することが可能である。そして、それらの道路の道路名称を検索ワードに含めることによって、移動予定経路の車両の流れに影響する交差道路の渋滞情報が投稿された投稿文を適切に抽出することが可能となる。
第1手前交差道路と第2手前交差道路の配置間隔を取得する間隔取得手段を有し、検索対象名称取得手段は、第1手前交差道路と第2手前交差道路の配置間隔が閾値以上である場合には、第1手前交差道路の名称を検索対象名称として取得する。
上記構成を有する投稿文検索システムによれば、移動予定経路を経由して渋滞要因施設へと向かう車両が走行する可能性がより高い道路として、特に渋滞要因施設に近い第1手前交差道路を特定することが可能である。そして、第1手前交差道路の道路名称を検索ワードに含めることによって、移動予定経路の車両の流れに影響する交差道路の渋滞情報が投稿された投稿文を適切に抽出することが可能となる。
第1手前交差道路と第2手前交差道路の道路幅をそれぞれ取得する道路幅取得手段を有し、検索対象名称取得手段は、第1手前交差道路と第2手前交差道路の配置間隔が閾値未満の場合には、第1手前交差道路と第2手前交差道路の内、道路幅が大きい方の道路の名称を検索対象名称として取得する。
上記構成を有する投稿文検索システムによれば、移動予定経路を経由して渋滞要因施設へと向かう車両が走行する可能性がより高い道路として、第1手前交差道路及び第2手前交差道路の内、特に道路幅が広い方の交差道路を特定することが可能である。そして、該交差道路の道路名称を検索ワードに含めることによって、移動予定経路の車両の流れに影響する交差道路の渋滞情報が投稿された投稿文を適切に抽出することが可能となる。
渋滞施設判定手段は、移動予定経路(又は進入交差道路)の周辺であって、移動予定経路(又は進入交差道路)に対して移動予定経路を車両が走行する車線側(又は移動予定経路から進入した車両が走行する車線側)に渋滞要因施設があるか否か判定することを特徴とする。
上記構成を有する投稿文検索システムによれば、手前交差道路から移動予定経路を経由して渋滞要因施設へと進入する車線が、渋滞要因施設に進入する車両によって渋滞する可能性が高い場合に、該渋滞に関する情報が投稿された投稿文を適切に抽出することが可能となる。
2 投稿文管理センタ
3 投稿文検索サーバ
4 投稿文情報管理サーバ
6 ユーザ
7 通信端末
27 施設データ
Claims (13)
- 移動体の移動予定経路を取得する移動予定経路取得手段と、
前記移動予定経路の周辺に渋滞の要因となる施設である渋滞要因施設があるか否か判定する渋滞施設判定手段と、
前記移動予定経路の周辺に前記渋滞要因施設があると判定された場合に、前記渋滞要因施設より前記移動体側にあって前記移動予定経路と交差する道路である手前交差道路を取得する手前交差道路取得手段と、
前記手前交差道路の名称を検索対象名称として取得する検索対象名称取得手段と、
前記検索対象名称取得手段により取得された前記検索対象名称の文字列から検索ワードを設定する検索条件設定手段と、
コンピュータネットワーク上に投稿された投稿文の内から、前記検索条件設定手段により設定された前記検索ワードに該当する投稿文を抽出する検索手段と、を有することを特徴とする投稿文検索システム。 - 前記手前交差道路取得手段は、最も前記渋滞要因施設側で前記移動予定経路と交差する道路を第1手前交差道路として取得するとともに、前記第1手前交差道路の次に前記渋滞要因施設側で前記移動予定経路と交差する道路を第2手前交差道路として取得し、
前記検索対象名称取得手段は、前記第1手前交差道路及び前記第2手前交差道路の少なくとも一方の名称を前記検索対象名称として取得することを特徴とする請求項1に記載の投稿文検索システム。 - 前記第1手前交差道路と前記第2手前交差道路の配置間隔を取得する間隔取得手段を有し、
前記検索対象名称取得手段は、前記第1手前交差道路と前記第2手前交差道路の配置間隔が閾値以上である場合には、前記第1手前交差道路の名称を前記検索対象名称として取得することを特徴とする請求項2に記載の投稿文検索システム。 - 前記第1手前交差道路と前記第2手前交差道路の道路幅をそれぞれ取得する道路幅取得手段を有し、
前記検索対象名称取得手段は、前記第1手前交差道路と前記第2手前交差道路の配置間隔が閾値未満の場合には、前記第1手前交差道路と前記第2手前交差道路の内、道路幅が大きい方の道路の名称を前記検索対象名称として取得することを特徴とする請求項3に記載の投稿文検索システム。 - 前記渋滞施設判定手段は、前記移動予定経路の周辺であって、前記移動予定経路に対して前記移動予定経路を車両が走行する車線側に前記渋滞要因施設があるか否か判定することを特徴とする請求項1乃至請求項4のいずれかに記載の投稿文検索システム。
- 移動体の移動予定経路を取得する移動予定経路取得手段と、
前記移動予定経路と交差する道路であって、前記移動予定経路を走行する車両が前記移動予定経路から進入可能な道路である進入交差道路を取得する交差道路取得手段と、
前記進入交差道路の周辺に渋滞の要因となる施設である渋滞要因施設があるか否か判定する交差渋滞施設判定手段と、
前記進入交差道路の周辺に前記渋滞要因施設があると判定された場合に、前記移動予定経路と前記進入交差道路の交差点より前記移動体側にあって前記移動予定経路と交差する道路である手前交差道路を取得する手前側交差道路取得手段と、
前記手前交差道路の名称を検索対象名称として取得する検索対象名称取得手段と、
前記検索対象名称取得手段により取得された前記検索対象名称の文字列から検索ワードを設定する検索条件設定手段と、
コンピュータネットワーク上に投稿された投稿文の内から、前記検索条件設定手段により設定された前記検索ワードに該当する投稿文を抽出する検索手段と、を有することを特徴とする投稿文検索システム。 - 前記手前側交差道路取得手段は、最も前記交差点側で前記移動予定経路と交差する道路を第1手前交差道路として取得するとともに、前記第1手前交差道路の次に前記交差点側で前記移動予定経路と交差する道路を第2手前交差道路として取得し、
前記検索対象名称取得手段は、前記第1手前交差道路及び前記第2手前交差道路の少なくとも一方の名称を前記検索対象名称として取得することを特徴とする請求項6に記載の投稿文検索システム。 - 前記第1手前交差道路と前記第2手前交差道路の配置間隔を取得する間隔取得手段を有し、
前記検索対象名称取得手段は、前記第1手前交差道路と前記第2手前交差道路の配置間隔が閾値以上である場合には、前記第1手前交差道路の名称を前記検索対象名称として取得することを特徴とする請求項7に記載の投稿文検索システム。 - 前記第1手前交差道路と前記第2手前交差道路の道路幅をそれぞれ取得する道路幅取得手段を有し、
前記検索対象名称取得手段は、前記第1手前交差道路と前記第2手前交差道路の配置間隔が閾値未満の場合には、前記第1手前交差道路と前記第2手前交差道路の内、道路幅が大きい方の道路の名称を前記検索対象名称として取得することを特徴とする請求項8に記載の投稿文検索システム。 - 前記交差渋滞施設判定手段は、前記進入交差道路の周辺であって、前記進入交差道路に対して前記移動予定経路から進入した車両が走行する車線側に前記渋滞要因施設があるか否か判定することを特徴とする請求項6乃至請求項9のいずれかに記載の投稿文検索システム。
- 移動体の移動予定経路を取得する移動予定経路取得手段と、
前記移動予定経路の周辺に渋滞の要因となる施設である渋滞要因施設があるか否か判定する渋滞施設判定手段と、
前記移動予定経路の周辺に前記渋滞要因施設があると判定された場合に、前記渋滞要因施設より前記移動体側にあって前記移動予定経路と交差する道路である手前交差道路を取得する手前交差道路取得手段と、
前記手前交差道路の名称を検索対象名称として取得する検索対象名称取得手段と、
前記検索対象名称取得手段により取得された前記検索対象名称の文字列から検索ワードを設定する検索条件設定手段と、
コンピュータネットワーク上に投稿された投稿文の内から、前記検索条件設定手段により設定された前記検索ワードに該当する投稿文を抽出する検索手段と、を有することを特徴とする投稿文検索装置。 - 移動予定経路取得手段が、移動体の移動予定経路を取得するステップと、
渋滞施設判定手段が、前記移動予定経路の周辺に渋滞の要因となる施設である渋滞要因施設があるか否か判定するステップと、
手前交差道路取得手段が、前記移動予定経路の周辺に前記渋滞要因施設があると判定された場合に、前記渋滞要因施設より前記移動体側にあって前記移動予定経路と交差する道路である手前交差道路を取得するステップと、
検索対象名称取得手段が、前記手前交差道路の名称を検索対象名称として取得するステップと、
検索条件設定手段が、前記検索対象名称取得手段により取得された前記検索対象名称の文字列から検索ワードを設定するステップと、
検索手段が、コンピュータネットワーク上に投稿された投稿文の内から、前記検索条件設定手段により設定された前記検索ワードに該当する投稿文を抽出するステップと、を有することを特徴とする投稿文検索方法。 - コンピュータを、
移動体の移動予定経路を取得する移動予定経路取得手段と、
前記移動予定経路の周辺に渋滞の要因となる施設である渋滞要因施設があるか否か判定する渋滞施設判定手段と、
前記移動予定経路の周辺に前記渋滞要因施設があると判定された場合に、前記渋滞要因施設より前記移動体側にあって前記移動予定経路と交差する道路である手前交差道路を取得する手前交差道路取得手段と、
前記手前交差道路の名称を検索対象名称として取得する検索対象名称取得手段と、
前記検索対象名称取得手段により取得された前記検索対象名称の文字列から検索ワードを設定する検索条件設定手段と、
コンピュータネットワーク上に投稿された投稿文の内から、前記検索条件設定手段により設定された前記検索ワードに該当する投稿文を抽出する検索手段と、
して機能させる為のコンピュータプログラム。
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- 2014-06-18 US US14/901,597 patent/US20160371300A1/en not_active Abandoned
- 2014-06-18 CN CN201480035663.5A patent/CN105339937B/zh not_active Expired - Fee Related
- 2014-06-18 WO PCT/JP2014/066127 patent/WO2015012029A1/ja active Application Filing
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106355913A (zh) * | 2016-09-21 | 2017-01-25 | 山东科技大学 | 一种基于文本挖掘的交通控制方法 |
CN106355913B (zh) * | 2016-09-21 | 2019-02-05 | 山东科技大学 | 一种基于文本挖掘的交通控制方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2988228A4 (en) | 2016-06-15 |
EP2988228B1 (en) | 2017-07-26 |
JP2015022742A (ja) | 2015-02-02 |
JP6155936B2 (ja) | 2017-07-05 |
CN105339937B (zh) | 2019-02-15 |
US20160371300A1 (en) | 2016-12-22 |
CN105339937A (zh) | 2016-02-17 |
EP2988228A1 (en) | 2016-02-24 |
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