JP2009151494A - Content acquisition device, navigation device, content acquisition method and content acquisition program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily acquire content relevant to a facility. <P>SOLUTION: A navigation device is provided with: an acceptance means (S01) for storing a facility database in which a facility designation and an address to specify the facility are associated with each other in a memory card, and for accepting the facility designation; acquisition means (S04, S06) for requesting a retrieval engine server to perform retrieval by using the accepted facility designation and the address stored so as to be associated with the facility designation as a keyword, and for acquiring the URL of a Web page extracted by the retrieval engine server; and a display means for acquiring a home page based on the acquired URL (S22), and for displaying it (S23). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a content acquisition device, a navigation device, a content acquisition method, and a content acquisition program, and more particularly to a content acquisition device, a navigation device, a content acquisition method, and a content acquisition program for acquiring a web page on the Internet.

  In recent years, navigation devices mounted on vehicles have become widespread. Some navigation devices store facility information in addition to map information. The facility information includes the facility type, name, address, and telephone number. Japanese Patent Application Laid-Open No. 2006-15558 describes a navigation device that downloads a home page of a facility located around the current location so that the facility information includes a URL (Uniform Resource Locator) of the home page of the facility. Yes.

  However, the URL of the home page is often changed. When the URL is changed, the home page cannot be downloaded using the URL included in the facility information. For this reason, the conventional navigation apparatus has a problem that it is necessary to constantly update the URL to the latest one.

In addition, by requesting a search using facility information as a keyword from a search engine connected to the Internet, the URL of the homepage of the target facility can be acquired. However, if an appropriate keyword is not given, the URL of the target homepage is not searched, or the URL of a Web page arranged at a lower hierarchy of the homepage is searched and the search results are different from the target. There is a problem that the URLs are listed.
JP 2006-15558 A

  The present invention has been made to solve the above-described problems, and one of the objects of the present invention is to provide a content acquisition apparatus capable of easily acquiring content related to a facility.

  Another object of the present invention is to provide a navigation device capable of easily acquiring content related to a facility.

  Still another object of the present invention is to provide a content acquisition method capable of easily acquiring content related to a facility.

  Another object of the present invention is to provide a content acquisition program capable of easily acquiring content related to a facility.

  In order to achieve the above-described object, according to one aspect of the present invention, a content acquisition device includes a table acquisition unit that acquires an association table that associates a facility name with specific information for specifying the facility, The search engine is requested to perform a search using the receiving means for receiving the name, the received facility name and the specific information associated with the received facility name, and the position information on the network of the content extracted by the search engine is acquired. Acquisition means for acquiring, and display means for acquiring and displaying content based on the acquired position information.

  According to this aspect, an association table that associates the facility name with the specific information for identifying the facility is acquired, and when the facility name is received, the facility name and the specific information associated with the facility name are obtained. The search engine is requested to search for the content set as the keyword, the position information on the network of the content extracted by the search engine is acquired, and the content is acquired and displayed based on the acquired position information. For this reason, if the user performs a simple operation of inputting the facility name, the content related to the facility is acquired and displayed, so that it is not necessary to input a keyword. As a result, it is possible to provide a content acquisition device that can easily acquire content related to a facility.

  Preferably, the acquisition unit requests a search using a facility name as a keyword to the search engine, and acquires a first search result including a first search result including location information on the network of the content extracted by the search engine; A second search request means for requesting a search engine to perform a search using the specific information associated with the facility name as a keyword, and obtaining a second search result including location information on the network of the content extracted by the search engine; Position information determining means for determining, from among the position information included in one search result, one of the position information included in the second search result that matches the front as display position information.

  According to this aspect, the first search result obtained by searching the content using the facility name as a keyword is acquired, and the second search result obtained by searching the content using the specific information associated with the facility name as a keyword is acquired. Of the position information included in the search result, one of the position information included in the second search result and the one that matches the front is acquired as display position information. If the facility name is used as a keyword, the homepage is likely to be searched. For this reason, the content acquisition apparatus which can acquire the homepage relevant to a facility can be provided.

  Preferably, the position information determination means is included in the first search result if there is no position information included in the first search result that does not coincide with any one of the position information included in the second search result. The position information included in the second search result and the position information included in the second search result are trimmed to determine whether the front matches.

  Preferably, the position information determination means is included in the first search result if there is no position information included in the first search result that does not coincide with any one of the position information included in the second search result. The lower part of the position information is cut to determine whether the front matches.

  According to this aspect, the position information included in the first search result is often shorter than the position information included in the second search result, so that the processing can be completed earlier.

  Preferably, the specific information is position information, a display unit that displays a map, a facility name display unit that displays one or more facility names associated with the position information in the displayed map in an association table, The receiving means receives one designation from the displayed one or more facility names.

  According to this aspect, the facility name of the facility is displayed in the displayed map, and one designation is accepted from the displayed one or more facility names. For this reason, the contents of the facility designated from the map can be displayed.

  Preferably, the specific information includes any of address information, a telephone number, and position information on a map.

  According to this aspect, from the position information of the content extracted by the search using the facility name as a keyword, the front matches the position information on the map or the position information of the content extracted by the search using the telephone number as a keyword. The content of the location information is acquired and displayed. For this reason, even if there are a plurality of the same facility names, one content can be identified from the contents related to the plurality of facility names.

  Preferably, the acquisition unit requests the specific information acquisition unit for acquiring the specific information associated with the received facility name and the association table, and requests the search engine using the facility name as a keyword, and is extracted by the search engine. First search request means for acquiring a first search result including location information on the content network, and a search engine that requests the search using the acquired specific information as a keyword, and the content network extracted by the search engine The second search requesting means for obtaining the second search result including the upper position information and the position information included in the second search result out of the position information included in the first search result coincide with the front. Position information determining means for determining one as display position information.

  According to another aspect of the present invention, the navigation device includes a table storage unit that stores an association table that associates a facility name with specific information for specifying the facility, a reception unit that receives the facility name, and a reception unit. An acquisition means for requesting a search engine for a search using the specified facility name and specific information associated with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine; Display means for acquiring and displaying content based on the position information.

  According to this aspect, if the user performs a simple operation of inputting the facility name, the content related to the facility is acquired and displayed, so that it is not necessary to input a keyword. As a result, it is possible to provide a navigation device that can easily acquire content related to a facility. Moreover, since the association table in which the facility name and the specific information are associated with each other is stored, the specific information related to the facility name input by the user can be acquired at a higher speed than that acquired from the outside. As a result, content can be acquired at high speed.

  According to still another aspect of the present invention, the content acquisition method includes a step of acquiring an association table associating a facility name with specific information for specifying the facility, a step of receiving the facility name, and a step of receiving the facility name. Requesting a search engine to perform a search using the facility name and the specific information associated with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine, and the acquired location information And acquiring and displaying the content specified by the position information.

  If this situation is followed, the content acquisition method which can acquire easily the content relevant to a facility can be provided.

  According to still another aspect of the present invention, the content acquisition program receives a step of acquiring an association table in which a facility name is associated with specific information for specifying the facility, a step of receiving the facility name, and a step of receiving the facility name. Requesting a search engine to perform a search using the facility name and the specific information associated with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine, and the acquired location information And acquiring and displaying the content specified by the position information based on the information.

  If this situation is followed, the content acquisition program which can acquire easily the content relevant to a facility can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is a diagram showing an overall outline of a content search system according to one embodiment of the present invention. Referring to FIG. 1, content search system 1 includes navigation device 10, facility Web servers 50 </ b> A, 50 </ b> B, 50 </ b> C, and search engine server 60, each connected to the Internet 70.

  The navigation device 10 functions as a content acquisition device. The facility Web servers 50A, 50B, and 50C are servers that provide websites operated by the facility, and are general computers. Since the configurations and functions of the facility Web servers 50A, 50B, and 50C are well known, description thereof will not be repeated here.

  The search engine server 60 is a Web server, receives a search request from the navigation device 10, and returns a search result according to the search request. The search engine server 60 includes a communication unit 61 for connecting the search engine server 60 to the Internet 70, a search request receiving unit 63 for receiving a search request, an information collecting unit 67, and characters for storing collected data. A column search database 65 and a search execution unit 69 are included.

  The information collection unit 67 circulates through a Web server connected to the Internet 70, here facility Web servers 50A, 50B, and 50C, and acquires a Web page. Then, the keywords described in the Web page are extracted by performing morphological analysis and lexical analysis. Further, the keyword and the Web page are associated and registered in the character string search database 65. At this time, instead of registering the URLs of all Web pages in which character strings are described, the top of the Web site is used for keywords that occur frequently when any of the Web pages of the Web site is extracted. Register only pages, or rank and register in order from Web pages that are often downloaded. As the ranking algorithm, a conventionally known HITS (Hyperlink-Induced Topic Search) algorithm can be used. Instead of HITS, Google (registered trademark) PageRank (registered trademark) or Yahoo (registered trademark) YST (Yahoo Search Technology) may be used.

  When the communication unit 61 receives a search request from the navigation device 10, the search request receiving unit 63 acquires the search request from the communication unit 61 and outputs a search instruction to the search execution unit 69. The search instruction includes a keyword included in the search request. When the search instruction is input, the search execution unit 69 searches the character string search database with the keyword included in the search instruction, and extracts the URL of the Web page associated with the keyword. Then, the extracted URL list is transmitted to the navigation apparatus 10 that has transmitted the search request via the communication unit 61.

  FIG. 2 is a functional block diagram showing an outline of the hardware configuration of the navigation device. With reference to FIG. 2, the navigation device 10 includes a central processing unit (CPU) 11 for controlling the entire navigation device 10, a ROM (Read Only Memory) 19 for storing a program executed by the CPU 11, and the CPU 11. RAM (Random Access Memory) 21, GPS receiver 13, radio circuit 14, memory interface (I / F) 15, serial communication I / F 17, liquid crystal display device 23, and operation Part 25.

  The GPS receiver 13 receives radio waves transmitted from GPS satellites in the global positioning system (GPS), and measures the current position on the map. Then, the measured position is output to the CPU 11.

  The wireless circuit 14 is connected to a network of a communication system of WiMAX (Worldwide Interoperability for Microwave Access). As a result, the navigation apparatus 10 is connected to the Internet 70 via the WiMAX communication system network. The WiMAX communication method is also called Wireless MAN (Wireless Metropolitan Area Network), and is a standard called IEEE 802.16 that provides high-speed wireless communication for urban scale areas. Specifically, the wireless circuit 14 wirelessly communicates with an access point connected to a WiMAX network. When the radio signal transmitted from the access point is received by the antenna, the radio circuit 14 receives the radio signal from the antenna and outputs a signal obtained by demodulating the radio signal to the CPU 11. When a signal for transmission is input from the CPU 11, the wireless circuit 14 outputs a wireless signal obtained by modulating the signal to the antenna. A radio signal transmitted from the antenna is received by the access point.

Here, an example is shown in which the wireless circuit 14 is connected to a WiMAX network. However, as long as the wireless LAN (Local Area Network) is used, the wireless circuit 14 is not limited to a WiMAX network. For example, BLUETOOTH (registered trademark), WiFi is used. It may be a network such as (registered trademark). The wireless circuit 14 only needs to be able to connect to the Internet 70. For example, W-CDMA (Wideband Code Division Multiple Access), PDC (Personal Digital Cellular), GSM (Global System for Mobile).
) System, CDMA (Code Division Multiple Access) network, and PHS (Personal Handyphone System) network. Furthermore, the Internet 70 may be connected with priority. Although an example in which the wireless circuit 14 is connected to a WiMAX network is shown here, the wireless circuit 14 may be connected to the WiMAX network via a wired line.

  The memory I / F 15 is loaded with a removable memory card 15A. The CPU 11 reads the map data stored in the memory card 15 </ b> A and displays an image in which the current position input from the GPS receiver 13 is written on the map on the liquid crystal display device 23. Although an example in which map data is stored in the memory card 15A will be described here, a medium for storing map data may be a magnetic disk, an optical disk, or the like. Further, the map data may be received from an external computer connected via the wireless circuit 14. Instead of the liquid crystal display device 23, a display such as an organic ELD (Electro Luminescence Display) may be used.

  The operation unit 25 includes a plurality of button switches provided on the front surface of the navigation device 10, a light receiving unit 27, and a touch screen 29. The operation unit 25 receives an input of an instruction from a user who operates the navigation device 10 and outputs the received instruction to the CPU 11.

  The light receiving unit 27 can wirelessly communicate with the remote controller 27A using infrared rays. The remote controller 27A has a plurality of button switches as well as a plurality of button switches provided in the operation unit 25. For this reason, the user can input an instruction similar to that input to the operation unit 25 using the remote controller 27A.

  The touch screen 29 is made of a transparent member and is provided on the display surface of the liquid crystal display device 23. The touch screen 29 detects the position on the display surface of the liquid crystal display device 23 instructed by the user with a finger or the like, and outputs it to the CPU 11. The CPU 11 displays various buttons on the liquid crystal display device 23 and receives various operation instructions in combination with the instructed position detected by the touch screen 29. The operation screen displayed on the liquid crystal display device 23 by the CPU 11 includes an operation screen for operating the navigation device 10.

  Here, an example in which a program to be executed by the CPU 11 is stored in the ROM 31 will be described. However, the program may be stored in the memory card 15A, read from the memory card 15A, and executed by the CPU 11. Good. The recording medium for storing the program is not limited to the memory card 15A, but a flexible disk, a cassette tape, a magnetic disk (HDD), an optical disk (CD-ROM (Compact Disc-ROM) / MO (Magnetic Optical Disc) / MD (Mini). (Disc) / DVD (Digital Versatile Disc)), IC card, optical card, mask ROM, EPROM (Erasable Programmable ROM), EEPROM (Electronically EPROM), or other semiconductor memory.

  The memory card 15A stores map information and a facility database. FIG. 3 is a diagram illustrating an example of a facility database. Referring to FIG. 3, the facility database includes a facility record that defines specific information for specifying the facility for each facility. The facility record includes a name item, an address item, a telephone number item, a coordinate item, and a facility information item. In the name field, the facility name assigned to the facility is set. In the address field, the address of the facility is set. In the telephone number field, the telephone number assigned to the facility is set. Location information on the map is set, and information on the facility is set in the facility information item. The position information is a position on the map and includes latitude and longitude. The specific information includes an address and a telephone number. Here, the specific information includes two of an address and a telephone number, but the specific information may be any one. Here, a case where the specific information is an address will be described as an example.

  Next, an operation for displaying the facility web page on the navigation device 10 will be described using a screen displayed on the liquid crystal display device 23 by the CPU 11. When a position on the map is given to the navigation device 10, the CPU 11 reads the map information stored in the memory card 15A, and displays a map of an area within a predetermined range including the given position. Further, the CPU 11 searches the facility database, extracts a facility record that includes the position set in the coordinate item within the range of the map to be displayed, and sets it in the facility name item of the extracted facility record. The name of the facility is displayed.

  FIG. 4 is a diagram illustrating an example of a screen for displaying a map. Referring to FIG. 4, it includes a cross indicating a given position, an area indicating three facilities, and an instruction button on which menu characters are displayed. The area | region which shows three facilities is arrange | positioned in the position on the map of each facility, and contains a facility name. Here, the facility names of the three facilities are “Yamagata Park”, “Boar Co., Ltd.” and “Yamada Corporation”. The position given to the navigation device 10 may be a position input by the user to the operation unit 25, or may be a position output by the GPS receiver 13.

  When the user instructs the instruction button, a menu screen is displayed. FIG. 5 is a diagram illustrating an example of a screen that displays a menu screen. The menu screen includes options for setting a destination, surrounding facility information, destination search by genre, and current location display. On the menu screen, if the user indicates an option for surrounding facility information, a setting screen is displayed.

  FIG. 6 is a diagram illustrating an example of the setting screen. Referring to FIG. 6, there are three setting screens, “Set as destination”, “Display facility information”, and “Display homepage” for each facility with the facility name displayed on the map shown in FIG. Includes options. Here, an example is shown in which the “Homepage display” option for the facility name “Boar Co., Ltd.” is designated.

  The CPU 11 provided in the navigation device 10 executes a homepage display process to display the homepage of “Boar Co., Ltd.” when the option “Homepage Display” for the facility name “Boar Co., Ltd.” is instructed on the setting screen. Then, the acquired home page is displayed on the liquid crystal display device.

  FIG. 7 is a diagram illustrating an example of a homepage. An example is shown in which a home page is displayed among Web pages provided by Boar Co., Ltd.

  FIG. 8 is a flowchart illustrating an example of the flow of homepage display processing. The homepage display process is a process executed by the CPU 11 when the CPU 11 executes a content acquisition program.

  The flow of processing will be described with reference to FIG. In step S01, the CPU 11 determines whether or not a facility has been selected. The process waits until a facility is selected. If a facility is selected, the process proceeds to step S02. That is, the homepage display process is a process executed on the condition that a facility is selected. Therefore, an interrupt may be generated when a facility is selected, and the processes after step S02 may be executed.

  In step S02, the facility name and address of the selected facility are extracted from the facility database. Specifically, the facility record including the facility name of the selected facility is extracted from the facility database stored in the memory card 15A, and the facility name and address of the extracted facility record are extracted. Since the navigation apparatus 10 in the present embodiment stores the facility database in the memory card 15A, the address can be quickly acquired from the name of the selected facility. The facility database may be stored in a computer connected to the Internet 70, and the facility name may be acquired from the computer via the wireless circuit 14. However, storing the facility database in the memory card 15A does not require time required for communication, so the facility name can be acquired at high speed.

  In the next step S03, the facility name is searched for as a keyword. Specifically, a search request using the facility name as a keyword is transmitted to the search engine server 60 via the wireless circuit 14. When receiving the search request, the search engine server 60 searches the character string search database 65 using the facility name as a keyword, and transmits the search result to the navigation device 10. When the wireless circuit 14 receives the search result from the search engine server 60, the CPU 11 acquires the search result from the wireless circuit 14 as the search result list A (step S04).

  FIG. 9 is a diagram illustrating an example of the search result list A. As illustrated in FIG. Referring to FIG. 9, search result list A includes a record in which a rank is associated with a URL. Each record includes a rank item and a URL item. In the rank item, a rank assigned to each of a plurality of records by the search engine server 60 is set. In the URL item, a URL indicating the position of the Web page on the Internet 70 is set. Here, since the facility name “Boar Co., Ltd.” is set as a keyword, the search result list A includes a record including URLs of a plurality of Web pages associated with the character string of Boar Co., Ltd. The search result list A has a high probability of including a plurality of Web pages provided by the wild boar website, and may include Web pages provided by the websites of companies of the same name in different regions. In addition, the search result list A has a high probability of including a home page among a plurality of Web pages provided by the wild boar website.

  Returning to FIG. 8, in step S05, the address extracted in step S02 is searched for as a keyword. Specifically, a search request using the address as a keyword is transmitted to the search engine server 60 via the wireless circuit 14. When receiving the search request, the search engine server 60 searches the character string search database 65 using the address as a keyword, and transmits the search result to the navigation device 10. When the wireless circuit 14 receives the search result from the search engine server 60, the CPU 11 acquires the search result from the wireless circuit 14 as a search result list B (step S06).

  FIG. 10 is a diagram illustrating an example of the search result list B. As illustrated in FIG. Referring to FIG. 10, similarly to search result list A, search result list B includes a record that associates a rank with a URL. Since the search result list B is set with the address “44 Senjo-in Genmachi, Kyoto, Kyoto City” as a keyword, the search result list B is a record including URLs of a plurality of Web pages associated with the character string of the address. including. The search result list B has a high probability of including a plurality of Web pages provided by the wild boar website, and does not include Web pages provided by the company websites of the same name in different regions.

  Returning to FIG. 8, in step S07, the variable D is set to “0”. The variable D is a value indicating the number of hierarchies to be deleted from the URL. In the next step S08, the list pointer A is matched with the URL of the record having the highest rank in the search result list A. The URL combined with the list pointer A is set as a processing target in subsequent steps.

  In step S09, the first URL conversion process is executed for the URL to be processed. Although the first URL conversion process will be described later, when the end of the URL indicates a file name, the file name is deleted from the URL. Thereby, useless URL comparison can be eliminated.

  In the next step S10, a second URL conversion process is executed. Although the second URL conversion process will be described later, it is a process of deleting URL hierarchies corresponding to the number of values set in the variable D in order from the lower hierarchy of the URL. The URL hierarchy is distinguished by the symbol “/”. When the second URL conversion process is executed first, since the variable D is set to “0” in step S07, the process proceeds to step S11 without deleting the hierarchy. According to the processing of step S10, it is possible to cope with the case where the position of the TOP page is hierarchically low, in other words, the case where the URL of the TOP page is long.

  In step S11, it is determined whether or not the processing result of the second URL conversion processing is not convertible. In the second URL conversion process, when the number of hierarchies corresponding to the number of variables D cannot be deleted, a signal indicating that conversion is impossible is returned as a return value. If the result of the second URL conversion process is not convertible, the process proceeds to step S12. If not, the process proceeds to step S18.

  In step S18, the list pointer B is matched with the URL of the record having the highest rank in the search result list B acquired in step S06. The URL combined with the list pointer B is set as a comparison target in the subsequent steps. In the next step S19, it is determined whether or not the URL set as the comparison target by the list pointer B matches the converted URL processed by the second conversion process in step S10. If the URL set as the process target by list pointer B matches the converted URL, the process proceeds to step S22; otherwise, the process proceeds to step S20.

  In step S22, the Web page with the URL indicated by list pointer A is acquired. Specifically, among the facility Web servers 50A, 50B, and 50C, a Web page transmission request specified by the URL is transmitted to the one specified by the URL via the wireless circuit 14, and the Web page returned is returned. When the wireless circuit 14 receives it, the Web page is acquired. Among the URLs included in the search result list A obtained as a result of searching using the facility name as a keyword, the URL of the URL whose front matches the URL included in the search result list B obtained as a result of searching using the address as a keyword Since the page is acquired, the home page can be acquired from the plurality of Web pages provided by the Web site of the facility name.

  In the next step S23, the acquired web page is displayed on the liquid crystal display device 23 (step S23). Therefore, the homepage provided by the website of the facility designated by the user is displayed on the liquid crystal display device 23.

  On the other hand, if it is determined in step S19 that the URL set as the processing target by the list pointer B does not match the converted URL, the list pointer B is advanced by one in step S20. That is, the URL of the next rank record among the plurality of records in the search result list B is set as the processing target. In the next step S21, it is determined whether or not the URL indicated by the list pointer B exists. If it does not exist, the process proceeds to step S14. If not, the process returns to step S19. That is, the comparison in step S19 is performed for the URLs of all records included in the search result list B until there is a forward match with the converted URL.

  In the case where the process proceeds to step S14, a URL that matches the conversion URL at that time does not exist in the search result list B. In this case, the URL of the next rank included in the search result list A is compared with the URL included in the search result list B. For this reason, in step S14, the list pointer A is advanced by one. That is, the URL of the next rank record among the plurality of records in the search result list A is set as the processing target.

  In the next step S15, it is determined whether or not the URL indicated by the list pointer A exists. If not, the process proceeds to step S16. If not, the process returns to step S09. That is, the URLs of the records of the next rank included in the search result list A are compared with the URLs of all the records included in the search result list B in step S19.

  When the process proceeds to step S16, for all the URLs included in the search result record A, the variable D is deleted from the hierarchy, and all the URLs included in the search result record B are the same in step S19. This is the case when the comparison is finished. In this case, the URL to be processed is updated to a value obtained by adding 1 to the variable D in order to make the conversion URL obtained by deleting one hierarchy further than the number of the variables D, and the process proceeds to step S08. return.

  On the other hand, in step S12, the URL indicated by list pointer A is deleted from search result list A, and the process proceeds to step S13. This is because the URL indicated by the list pointer A does not coincide with the URLs of all the records included in the search result list B even if the hierarchy is deleted until the hierarchy cannot be deleted.

  In step S13, it is determined whether or not the total number of URLs included in the search result list A is “0”. If the total number of URLs is “0”, the process proceeds to step S17; otherwise, the process proceeds to step S14. In step S17, an error message is displayed on liquid crystal display device 23, and the process ends. The error message includes a message notifying that the corresponding home page could not be acquired. In step S17, instead of displaying an error message, the search in step S05 may be executed using another address as a keyword, and the processing from step S06 onward may be performed. For example, when the keyword used for the search is “Echizen-an 2-chome 2-34”, the keyword is changed to “Echizen-an 2-2-234” and the search in step S05 is executed.

  FIG. 11 is a flowchart illustrating an example of the flow of the first URL conversion process. The first URL conversion process is a process executed in step S09 in FIG. Referring to FIG. 11, CPU 11 obtains a URL to be converted (step S31). Next, it is determined whether or not the end of the character string of the URL acquired as the processing target is an extension list character string (step S32). If the end of the URL character string matches any of the plurality of character strings included in the extension list, the process proceeds to step S34; otherwise, the process proceeds to step S33. FIG. 12 is a diagram illustrating an example of the extension list. The extension list may be stored in the ROM 19 in advance. The extension list includes file extensions.

  Returning to FIG. 11, in step S34, characters are deleted in order until the character “/” appears from the end of the character string of the URL acquired as the processing target, and the process returns to the home page display process. Thereby, when the file name of the homepage is defined in the last layer of the URL, the file name is deleted. Here, the second URL conversion process is executed for the URLs included in the search result list A. The URL included in the search result list A is a URL extracted using the facility name as a keyword. On the other hand, the URL included in the search result list B is a URL extracted using an address as a keyword. Usually, since the URL included in the search result list A is often shorter than the URL included in the search result list B, the homepage display process can be completed earlier.

  In step S33, it is determined whether or not the end of the character string of the URL acquired as the processing target is the character “/”. If the end of the URL character string is the character “/”, the process returns to the home page display process; otherwise, the process proceeds to step S35. In step S35, the character “/” is added to the end of the character string of the URL acquired as the processing target, and the process returns to the home page display process.

  FIG. 13 is a diagram illustrating an example of the URL after the first URL conversion process. The URL shown in FIG. 13 indicates the URL (conversion URL) after the first URL conversion processing is performed on the URL (pre-conversion URL) included in the search result list A shown in FIG. You can see that the file name on the homepage has been deleted.

  FIG. 14 is a flowchart illustrating an example of the flow of the second URL conversion process. The second conversion process is a process executed in step S10 of the homepage display process shown in FIG. The second URL conversion process is a process in which the converted URL after the first URL conversion process is a processing target, and the hierarchy corresponding to the number of variables D is deleted in order from the lower hierarchy.

  Referring to FIG. 14, CPU 11 obtains the conversion URL after the first conversion process as a processing target (step S41). Next, the value set in the variable D is set in the variable DP (step S42). A variable DP indicates the number of deleted hierarchies. Next, it is determined whether or not the variable DP is set to “0” (step S43). If the variable DP is set to “0”, the process proceeds to step S44; otherwise, the process proceeds to step S45. In step S44, the conversion URL is set in the return value, and the process returns to the home page conversion process.

  In step S45, the character string from the end of the conversion URL to the point immediately before the second character “/” appears is deleted. As a result, one lower hierarchy of the conversion URL is deleted. Then, it is determined whether or not the conversion URL includes only a predetermined character string (step S46). If the converted URL includes only a predetermined character string, the process proceeds to step S47; otherwise, the process proceeds to step S48. In step S47, the return value is set to “cannot be converted”, and the process returns to the home page display process. The predetermined character string is “http: //” or “https: //”. These are symbols for communication using the HTTP (HyperText Transfer Protocol) protocol.

  In step S48, the variable DP is updated to a value obtained by subtracting 1. Since the hierarchy is deleted from the conversion URL until the variable DP becomes “0”, the hierarchy is deleted from the conversion URL by the number set in the variable D.

  FIG. 15 is a diagram illustrating an example of the URL after the second conversion process is executed. FIG. 15 shows the URL after the second conversion process is performed on the URL after the first URL conversion process (converted URL) for the URL included in the search result list A shown in FIG. Show. The pre-conversion URL item indicates the URL after the first URL conversion processing is performed on the URL included in the search result list A shown in FIG. It can be seen that the hierarchy is deleted as the value of the variable D increases.

  When the search result list A shown in FIG. 9 and the search result list B shown in FIG. 10 are acquired, the first URL conversion processing is performed on the URL of rank 2 in the search result list A, and the second URL when the variable D = 1. The post-conversion URL “http://www.yonnet.jp/inoshishi/” generated by executing the conversion process is the URL “http://www.yonnet.jp/” of rank 3 in the search result list B. "inoshishi / main1.html" matches the front. For this reason, the Web page specified by the URL “http://www.yonnet.jp/inoshishi/info” of rank 2 in the search result list A is acquired and displayed on the liquid crystal display device 23.

  As described above, the navigation device 10 as the content acquisition device in the present embodiment stores the facility database in which the facility name is associated with the address as the specific information for specifying the facility in the memory card 15A. When the facility name is received, the search engine is requested to search for content using the facility name and the address stored in association with the facility name as a keyword, and the URL of the Web page extracted by the search engine is acquired. A web page is acquired and displayed based on this. For this reason, if a user performs a simple operation of inputting a facility name, a Web page related to the facility is displayed, and thus it is not necessary to input a keyword.

  Further, a search using the facility name as a keyword is requested to the search engine, a search result list A including the URL extracted by the search engine is acquired, and a search using the address stored in association with the facility name as a keyword is performed by the search engine. The search result list B including the URL extracted by the search engine is acquired, and one of the URLs included in the search result list B among the URLs included in the search result list A coincides with the front 1 One URL is determined. Since the URL included in the search result list A has a high probability of a home page, a home page related to the facility can be acquired.

  Also, the facility name of the facility existing in the map is displayed on the map displayed on the liquid crystal display device 23, and the facility is specified by accepting one designation from the displayed one or more facility names. Is done. For this reason, the homepage of the facility designated from the map can be displayed.

  Furthermore, the URL web page extracted by the search using the address or telephone number as a keyword is acquired and displayed from the URL extracted by the search using the facility name as a keyword. For this reason, even if there are a plurality of the same facility names, one of the plurality of Web pages related to each of the plurality of facility names can be specified.

  In the above-described embodiment, an example in which the map information and the facility database are stored in the memory card 15A has been shown. However, the map information and the facility database are HDDs included in navigation devices currently distributed in the market. Or it is the same as what is recorded on storage media, such as DVD. Therefore, the navigation device 10 according to the present embodiment can acquire and display a Web page related to a facility using the map information and the facility database stored in the existing navigation device. .

  In the above-described embodiment, the facility homepage is acquired after the facility is designated by the user. However, when the search engine server 60 has a delayed response, it takes time to acquire the homepage. In addition, a URL may be searched for each facility name stored in the facility database in advance, for example, when the wireless circuit 14 is available, and the searched URL may be additionally registered in the facility database. Thereby, a response can be made quick.

  Further, the homepage display process shown in FIG. 8 is executed by another computer connected to the Internet 70, and the navigation apparatus 10 transmits the facility name to the computer and acquires the URL of the homepage from the computer. May be. In this case as well, the URL of the home page may be received from the computer after the user designates the facility, or the navigation apparatus 10 acquires the URL of the home page for each facility from the computer in advance and registers it in the facility database. You may make it leave.

  Furthermore, in the above-described embodiment, the navigation device 10 has been described as an example of the content acquisition device. However, any device that can acquire a map and a facility database and can be connected to the Internet, for example, a mobile phone It may be. Furthermore, it goes without saying that the invention can be understood as a content display method for executing the home page display processing shown in FIGS. 8, 11 and 14 and a content display program for causing a computer to execute the content display method. .

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

<Appendix>
(1) storage means for storing an association table in which first identification information for identifying a search object is associated with second identification information different from the first identification information;
Receiving means for receiving the first identification information;
Search using the first identification information as a keyword, and first search means for acquiring first position information on the network of the extracted content;
Search using the second identification information stored in association with the first identification information as a keyword, and obtaining second location information on the network of the extracted content;
A content acquisition device comprising: display means for acquiring and displaying content specified by the first position information when the first position information matches the second position information in front.
(2) The first identification information is a name of the search object,
The second identification information is position information where the search object is located,
Display means for displaying a map;
Name display means for displaying one or more names associated with the positional information in the displayed map and the association table;
The content acquisition device according to (1), wherein the reception unit receives one designation from the displayed one or more names.
(3) The first identification information is a name of the search object,
The content acquisition device according to (1), wherein the second identification information includes any one of position information and a telephone number where the search target is located.
(4) A computer comprising storage means for storing an association table that associates first identification information for identifying a search object and second identification information different from the first identification information. A content acquisition method to be executed,
Receiving the first identification information;
Searching using the first identification information as a keyword to obtain first location information on the network of the extracted content;
Searching using the first identification information stored in association with the first identification information as a keyword, and obtaining second location information on the network of the extracted content;
A step of acquiring and displaying content specified by the first position information when the first position information coincides with the second position information.
(5) Executed by a computer having storage means for storing an association table in which first identification information for identifying a search object is associated with second identification information different from the first identification information A content acquisition program,
Receiving the first identification information;
Searching using the first identification information as a keyword to obtain first location information on the network of the extracted content;
Searching using the first identification information stored in association with the first identification information as a keyword, and obtaining second location information on the network of the extracted content;
A content acquisition program for causing a computer to execute the step of acquiring and displaying the content specified by the first position information when the first position information coincides with the second position information.

It is a figure showing the contents search system whole outline in one of the embodiments of the invention. It is a functional block diagram which shows the outline | summary of the hardware constitutions of a navigation apparatus. It is a figure which shows an example of a facility database. It is a figure which shows an example of the screen which displays a map. It is a figure which shows an example of the screen which displays a menu screen. It is a figure which shows an example of a setting screen. It is a figure which shows an example of a homepage. It is a flowchart which shows an example of the flow of a homepage display process. It is a figure which shows an example of the search result list | wrist A. 6 is a diagram illustrating an example of a search result list B. FIG. It is a flowchart which shows an example of the flow of a 1st URL conversion process. It is a figure which shows an example of an extension list | wrist. It is a figure which shows an example of URL after a 1st URL conversion process. It is a flowchart which shows an example of the flow of a 2nd URL conversion process. It is a figure which shows an example of URL after the 2nd conversion process is performed.

Explanation of symbols

  1 content search system, 10 navigation device, 11 CPU, 13 GPS receiver, 14 remote controller, 14 wireless circuit, 15 memory I / F, 15A memory card, 17 serial communication I / F, 19 ROM, 21 RAM, 23 liquid crystal Display device, 25 operation unit, 27 light receiving unit, 27A remote controller, 29 touch screen, 50A, 50B, 50C facility Web server, 60 search engine server, 61 communication unit, 63 search request receiving unit, 65 character string search database, 67 Information collection unit, 69 Search execution unit, 70 Internet.

Claims (10)

A table acquisition means for acquiring an association table in which a facility name and specific information for specifying the facility are associated;
Receiving means for receiving the facility name;
An acquisition means for requesting a search engine to search using the received facility name and the specific information associated with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine;
A content acquisition apparatus comprising: display means for acquiring and displaying the content based on the acquired position information. The acquisition means requests a search using the facility name as a keyword to a search engine, and obtains a first search result including a first search result including location information on the network of the content extracted by the search engine;
Second search requesting means for requesting a search engine to perform a search using the specific information associated with the facility name as a keyword, and acquiring a second search result including location information on the network of the content extracted by the search engine; ,
Position information determination means for determining, as display position information, one of the position information included in the first search result that matches the front of any one of the position information included in the second search result; The content acquisition device according to claim 1.   The position information determination means determines the first search result if the position information included in the first search result does not coincide with any one of the position information included in the second search result. The content acquisition apparatus according to claim 2, wherein the position information included in the second search result and the position information included in the second search result are cut down below to determine whether or not the front matches.   The position information determination means determines the first search result if the position information included in the first search result does not coincide with any one of the position information included in the second search result. The content acquisition device according to claim 3, wherein the position information included in the content information is cut off below to determine whether or not the front matches. The specific information is position information;
Display means for displaying a map;
Facility name display means for displaying one or more facility names associated with the positional information in the displayed map and the association table;
The content acquisition apparatus according to claim 1, wherein the reception unit receives one designation from the displayed one or more facility names.   The content acquisition apparatus according to claim 1, wherein the specific information includes any of address information, a telephone number, and position information on a map. The acquisition means includes specific information acquisition means for acquiring specific information associated with the accepted facility name and the association table;
A first search request means for requesting a search using the facility name as a keyword to a search engine and obtaining a first search result including location information on the network of the content extracted by the search engine;
Second search request means for requesting a search engine using the acquired specific information as a keyword, and acquiring a second search result including location information on the network of the content extracted by the search engine;
Position information determination means for determining, as display position information, one of the position information included in the first search result that matches the front of any one of the position information included in the second search result; The content acquisition device according to claim 1. Table storage means for storing an association table in which a facility name and specific information for specifying the facility are associated;
Receiving means for receiving the facility name;
An acquisition means for requesting a search engine to search using the received facility name and the specific information associated with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine;
A navigation device comprising display means for acquiring and displaying the content based on the acquired position information. Obtaining an association table associating a facility name with specific information for identifying the facility;
Receiving the facility name;
Requesting a search engine for a search using the received facility name and the specific information stored in association with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine; ,
Acquiring and displaying the content specified by the position information based on the acquired position information. Obtaining an association table associating a facility name with specific information for identifying the facility;
Receiving the facility name;
Requesting a search engine for a search using the received facility name and the specific information stored in association with the facility name as a keyword, and acquiring location information on the network of the content extracted by the search engine; ,
The content acquisition program which makes a computer perform the step which acquires the content specified by this positional information based on the acquired positional information, and displays it.

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