JP5272919B2 - Facility search display device - Google Patents

Description

The present invention relates to a facility search display device that facilitates selection of a target facility by displaying a search result related to a facility with priorities in a list, and in particular, a vehicle having a function of calculating a current location. It is used in a navigation device for a vehicle and facilitates selection of a facility as a destination.

  In a conventional navigation device, there are the following general methods for searching for a destination facility. First, a character string is input to the navigation device. A facility having the input character string in part or all of the facility name is searched.

  In the above general method, when only a part of the facility name is known, a large number of facilities are extracted as search results. Therefore, there has been a problem that it is difficult to find a desired facility.

  With respect to this problem, in Patent Document 1, the priority level is determined based on information such as the degree of recognition of the facility, the distance between the vehicle on which the navigation device is mounted and the facility, and the number of times the facility has been referred to in the past. Has been granted.

  Then, the search results are listed in the descending order of priority. In other words, items with high priority are listed in the upper rank. By performing the above list, generally important facilities can be easily searched.

JP 2007-109015 A

  According to the technique of the above-mentioned patent document 1, generally important facilities can be easily searched, but there are the following problems. For example, when searching for a facility called “Ashiya” using the navigation device, the character string that the navigation device recognizes as being input as an input character string is “Tsuya” instead of “Tsujiya”.

  When the input character string “Tsushiya” is input, the technique of Patent Document 1 lists “Tsu City Hall” with a high degree of recognition in the search result. This “Tsu City Hall” has “Tsushiya” as the input character string as a part of the name “Tsushiyakusho”. As described above, there is a problem in that facilities that are not intended by the user who has the input character string as a part of the name are listed at a high priority level.

  The present invention has been made paying attention to such problems existing in the prior art, and its purpose is not intended by the user even if an input character string related to a facility with a low degree of recognition is input. An object of the present invention is to provide a facility search and display device capable of suppressing the search result of facilities from being listed in a position with a high priority.

  Descriptions of patent documents listed as prior art can be introduced or incorporated by reference as explanations of technical elements described in this specification.

In order to achieve the above object, the present invention employs the following technical means. That is, according to the first aspect of the present invention, in the facility search display device for inputting a character string consisting of a keyword that is the name of the facility, performing a keyword search, and listing the facilities that are the search results, the facility name of the facility, A facility information database that stores information indicating the facility's reading kana and facility address, a general noun consisting of names commonly used in the facility, and a universal noun database that registers the kana of the general noun, search by the user Switch information input means for inputting a target keyword, a search means for searching a facility including the keyword from the facility information database, and obtaining a set of facilities including the keyword in a part of the reading of the facility as a keyword search result, Search means for a set of facilities, including a keyword as a keyword search results by, than the facility reading of the pseudonym,設名to generally stick generic nouns, place names become address name, and referred to the withdrawal means thinning out the reading pseudonym of the address, the result of the designation withdrawn processing, remained in kana only string that exactly matches your keyword to read It is characterized by comprising sorting means for obtaining a sorting result in which the facilities are arranged in order from the priority position in the list, and display processing means for displaying the sorting result.

  According to this invention, even when the user extracts a general noun and a place name from the official name of the facility and names the facility, if the user searches for the same keyword as the name, an appropriate priority is given. It is possible to display with ranking. In addition, the result of the name extraction process is rearranged so that only the character string that completely matches the keyword is read and the facilities that remain in the pseudonym are arranged from the priority position in the list. Even if it inputs as a keyword, it can suppress that the search result of the facility which a user does not intend is listed up in a position with high priority.

  In the invention according to claim 2, the name extracting means comprises address name extracting means and general-purpose noun extracting means. The address name extracting means is based on the facility name database and the address name and address of the facility. From the facility name and the facility reading pseudonym in the set of facilities including the keyword, the means for acquiring the reading pseudonym, the acquired address name, and the address reading pseudonym, as many as the acquired address name and address reading pseudonym The generic noun extraction means consists of a generic noun consisting of a name commonly used in the facility and a generic noun database in which the generic noun reading pseudonym is registered. Means for acquiring general nouns and readings of general nouns from information representing general nouns, and acquired general nouns and general noun readings About the acquired general nouns and the number of readings of generalized nouns, it consists of means for repeatedly thinning out generalized nouns and readings of generalized nouns from facility names and facility readings in the set of facilities containing keywords. It is characterized by.

  According to the present invention, address name extraction and general noun extraction are performed by the name extraction means, and general nouns generally attached to facility names, address names related to place names, and address reading pseudonyms can be thinned out. . Then, the result of the name extraction process can be rearranged so that the facility in which only the character string that completely matches the keyword is read and the facilities that remain in the kana are arranged from the priority position in the list by the sorting means that obtains the sorting result. I can do it.

  In the invention according to claim 3, the name extracting means has means for identifying the keyword part from the reading of the facility, and dividing the reading of the facility into the keyword part and other parts other than the keyword, If the reading kana of the address acquired from the facility information database is not part of the keyword, the reading kana of the address acquired from the facility information database is thinned out from the facility name and the facility reading kana in the set of facilities including the keyword, and If the reading of the general noun obtained from the general noun database is not part of the keyword part, the reading of the general noun obtained from the general noun database is obtained from the facility name and the facility reading kana in the set of facilities containing the keyword. It is characterized by thinning.

  According to this invention, when the reading address of the acquired address is not part of the keyword, the address name and the reading name of the address are thinned out, and the reading of the general noun and the reading of the general noun is thinned. The name “Io ○ Kariya store” is “Io ○” as the name of the facility after extracting the name, and “A” and “Iomaru” are the readings of the facility after extraction. Therefore, it is possible to obtain a state in which a proper priority is given by means of rearranging the facilities in which only the character string completely matching the keyword is read and left in the pseudonym from the priority position in the list.

  The invention according to claim 4 includes a place name database that can obtain a place name that is not a name in the administrative division from information representing the address of the facility, and the name extracting means includes an address name that becomes the place name obtained from the place name database, and an address It is characterized by thinning out the reading of kana.

  According to this invention, even when a name that is not the name of the administrative division is used as the name of the facility, the user extracts a place name consisting of a general noun and a name that is not the name of the administrative division from the official name of the facility. Even when the facility is named, if it is searched with the keyword as it is named, it can be displayed with priority.

  In the invention according to claim 5, the switch information input means is configured to input a destination to the navigation device, and the display processing means uses the display of the navigation device as a sorting result as a destination candidate. The facility is displayed in a list.

  According to the present invention, a facility that is a destination can be searched by the navigation device, and the facility that is the destination can be accurately listed on the display of the navigation device.

  In the invention described in claim 6, the facility information database representing the facility address or the general-purpose noun database obtains information necessary for processing from the database in the information center via the data communication means and the radio base station. It is characterized by doing.

  According to the present invention, by obtaining information necessary for processing from the database in the information center, a special address name that can be used only in the area, and a reading kana of an address or a reading of a general noun and a reading of a general noun Can be used to search and display facilities.

  In addition, the code | symbol in the parenthesis as described in a claim and said each means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

It is a schematic functional block diagram about the whole structure of a navigation apparatus or an information center in 1st Embodiment of this invention. It is a general structural example of the facility information database which can be acquired from the map data acquisition part of the navigation apparatus in the embodiment. It is a structural example of the address code conversion table used in order to acquire an address from the address code of the said facility information database of FIG. It is a flowchart of the facility search process in the navigation apparatus in the embodiment. 5 is a table showing a specific example of a facility search result searched with a keyword “Io ○” in the facility search process of FIG. 4. FIG. 6 is a table showing the facility search results shown in FIG. 5 and the result of performing a name extraction process for thinning out “nouns generally attached to facility names” and “place names” to the facility search results. FIG. 8 is a table in which the results of the name extraction process of FIG. 6 are sorted, and the facilities in which only the character strings that completely match the keywords are read and left in the kana are arranged from the top of the list. It is a display display image figure of the navigation apparatus which displayed the sort result shown in FIG. 7, and was in the state which receives the selection of the destination from a user. 5 is a detailed flowchart of a name extraction process in the flowchart shown in FIG. 4. FIG. 10 is an example of a general noun database prepared for use in the general noun extraction process in the detailed flowchart of FIG. 9. FIG. It is a table | surface which shows the place name database used by the extraction process about the address name used by 2nd Embodiment of this invention.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a schematic functional block diagram of the overall configuration of the navigation device 1 and the information center 19.

  The navigation device 1 includes a position detection unit 2, a map data storage unit 3, a switch information input unit 4, a memory unit 5, a display unit 6, an external device connection unit 7, a data communication unit 8, and a control in which these units are connected. Means 9 are provided.

  The position detection means 2 has components such as a geomagnetic sensor, a gyroscope, a distance sensor, and a GPS receiver for GPS (Global Positioning System) that detects the current position of the vehicle based on radio waves from the satellite. doing. Hereinafter, the above-described geomagnetic sensor, gyroscope, distance sensor, and GPS receiver are simply referred to as position detection means 2.

  The map data storage means 3 is composed of a CD-ROM or DVD-ROM, a memory card, an HDD, etc., and stores various data including so-called map matching data, map data, and landmark data for improving the accuracy of position detection. To do.

  As the switch information input means 4, for example, a touch switch or a mechanical switch integrated with the display means 6 is used. By operating the switch of the switch information input means 4, various functions for the control means 9 (for example, map scale change, menu display selection, destination setting input, route search, route guidance start, current position correction, display screen change, And volume control etc.).

  Note that a part of the switch information input means 4 is configured by a remote control terminal, and the touch switch or the mechanical switch or the like and the control means 9 are connected by wireless communication to transmit / receive switch operation information and operation display information. You may make it do.

  The destination is input by the switch information input means 4 by the operation of the passenger. By inputting the destination, the destination is set in the navigation device. The control means 9 automatically searches for an optimum route from the current position detected by the position detection means 2 to the destination and sets a guidance route. As described above, the Dijkstra method is known as a method for automatically setting an optimum route.

  The set route is displayed on the display unit 6 based on the information acquired from the map data storage unit 3. The display of the set route is superimposed on the display map displayed on the display unit 6 together with the current position mark detected by the position detection unit 2. In addition to the current position and the set route, other information displays such as the current time and traffic information can be additionally displayed on the display map.

  The memory means 5 is constituted by a ROM or a RAM, for example. Among these, the ROM stores a program for navigation. The RAM temporarily stores map data acquired from the work memory of the program and the map data storage means 3.

  The display means 6 displays a map, a destination selection screen, etc. as navigation display. This navigation display is capable of full color display. The display means 6 can be configured using liquid crystal, organic EL, or the like.

  The external device connection unit 7 includes an interface (IF) for connecting to a road traffic information communication system (VICS) or an automatic toll collection system (ETC). Via this interface, traffic jam information, ETC gate passing information, and the like are acquired.

  The data communication means 8 has a mutual communication function. The data communication means 8 is composed of a mobile terminal such as a mobile phone or a car phone, for example. These portable terminals are connected to the control means 9 so as to be easily detachable. Of course, the data communication means 8 may be incorporated in the control device 9 so that it cannot be easily attached and detached.

  The control means 9 includes a map data acquisition unit 10, a map matching unit 11, a route calculation unit 12, a route guidance unit 13, a drawing unit 14, a screen control management unit 15, and a communication control unit 16 (hereinafter referred to as “busy”) connected to each other via a bus line. , Various processing units 10, 11, 12, 13, 14, 15, and 16).

  Next, the operation of the control means 9 will be described. The various processing units 10, 11, 12, 13, 14, 15, and 16 require map data. The map data acquisition unit 10 acquires the necessary map data from the map data storage means 3.

  The acquired map data is provided to the various processing units 10, 11, 12, 13, 14, 15, and 16. Further, various processes in the various processing units 10, 11, 12, 13, 14, 15, and 16 are executed using the ROM and RAM of the memory unit 5.

  The map matching unit 11 uses the position information detected by the position detection unit 2 and the road shape data of the map data acquired from the map data storage unit 3 to specify on which road the current position exists. To do. At this time, the map data acquisition unit 10 acquires necessary map data from the map data storage means 3.

  After identifying on which road the current position exists, the current position information is converted into a value (infra link ID) that can be recognized by the information center 19 described later using the map data. A value (infra link ID) that can be recognized by the information center 19 is stored in the memory means 5 as current position information including position information, average vehicle speed, and detection time.

  The route calculation unit 12 calculates a route from the current position to the destination based on the current position information calculated by the map matching unit 11, the departure point information specified by the user, and the set destination information. .

  For setting the destination, a method of inputting a destination point on the map displayed by the drawing unit 14 or a method of causing the user to select facility information acquired from the map data acquisition unit 10 using the switch information input unit 4 or the like. Done in

  The route guidance unit 13 calculates points necessary for guidance from the result of the route calculation, road shape data stored in the map data, intersection position information, crossing position information, and the like. In addition, the route guidance unit 13 calculates what kind of guidance (whether it turns to the right or the left) is necessary.

  The drawing unit 14 draws a map of the current position, a schematic diagram of the highway, an enlarged view near the intersection, and the like according to instructions from the screen control management unit 15. The drawing result is displayed on the display means 6. The screen control management unit 15 instructs the drawing unit 14 to draw display information to be displayed on the display unit 6.

  The communication control unit 16 is set in a state in which mutual communication with the radio base station 17 is possible by the user using the switch information input unit 4 or by instructing the data communication unit 8 at regular intervals. Is done. In addition, even when the data communication unit 8 receives a request from the information center 19, the data communication unit 8 is set in a state where mutual communication between the navigation device 1 and the information center 19 is possible.

  At this time, the current position information stored in the memory means 5 is notified to the information center 19 by the function of the map matching unit 11. Further, the control means 9 makes an information request (request for traffic jam information, text information, weather information, other vehicle information, facility information, advertisement information, etc.) from the information center 19 via the data communication means 8. Get the information you need.

  The information center 19 has a line terminal device 20 that communicates via the telephone station 18 and a server 21 that processes necessary information such as traffic jam information, text information, weather information, other vehicle information, facility information, and advertisement information. doing. In addition, a database 22 is provided for storing necessary data such as traffic jam information, text information, weather information, other vehicle information, facility information, advertisement information, and personal information.

  The information center 19 is connected to the radio base station 17 through the telephone station 18. The information center 19 transmits / receives data to / from the navigation apparatus 1 via the wireless base station 17.

  The information center 19 uses the server 21 to process the current location information obtained through communication. The processed current location information is stored in the database 22. When there is an information request, the server 21 searches the database 22 for necessary information. Then, the retrieved necessary information is transmitted to the navigation device 1 using the line terminal device 20.

  In the above description of the prior art, when the input character string “Tsushiya” is input to the navigation device 1 using the switch information input means 4, there is a facility that is not intended by the user, such as “Tsu City Hall”. Explained the problem of being listed as a search result. Therefore, it is important for the navigation apparatus 1 to have a facility search display function that suppresses the facilities that are not intended by the user from being listed on the top.

  Hereinafter, the facility search display function will be described. First, an outline of the facility search display function will be described. For example, in the case of a chain store that is widely deployed, the place name is often included in the official name, such as “ZZ Kariya store”. However, in general, the chain store is often called with the place name omitted, such as “ZZ”.

  When searching for a facility such as this chain store, if the official name “ZZ Kariya store” is known, the search can be performed with the name “ZZ Kariya store”. However, since the user only knows “ZZ”, in many cases, the official name “ZZ Kariya store” cannot be input.

  Therefore, it is possible to search for all facilities including the name “ZZ”. However, in this case, if the name “ZZ” is short, for example, “Io ○”, a huge number of facilities are hit as search results.

  The reason why this enormous number of facilities are hit is that there are enormous amounts of facilities that include the above-mentioned ZZ, for example, “Io ○” as part of the name. As a result, it is very difficult to find a facility that the user really desires from among the huge number of hit facilities.

  The name of the facility is a noun consisting of a noun (hereinafter also referred to as a general-purpose noun) and a place name (hereinafter also referred to as an address name and address reading pseudonym) such as “corporation” and “store”. In many cases, the name is extracted (decimated) from the name of the facility. For example, the name of the facility called Io ○ Kariya is often referred to as Io ○ by extracting the store and Kariya.

  Therefore, the formal names of the facilities including these generally attached nouns (corporation, stores, etc.) and place names (Kariya etc.) are the names obtained by thinning out these commonly attached nouns and place names. Often stored by other users.

2a is a general structure example of the facility information database that can be acquired from the map data acquisition unit 10 described above. A general structure example of the facility information database that can be acquired from the map data acquiring unit 10 includes a facility name, a reading pseudonym, an address code that represents the address of the facility, a facility latitude / longitude of the facility, and detailed information. .

  FIG. 3 is an example of an address code conversion table 30a used for acquiring an address from the address code of FIG.

  Next, a flowchart of search processing in the navigation device 1 will be described with reference to FIG. Details of the repetition of the name extraction process during the search process will be described with reference to FIG. FIG. 4 is a flowchart of the facility search process in the navigation device according to the first embodiment.

  In FIG. 4, the navigation device 1 accepts a character string to be searched from the user via the switch information input means 4 (FIG. 1) (step S100). Hereinafter, this character string is described as a keyword.

  A facility including the keyword is searched from the facility information database 20a (FIG. 2) stored in the map data acquisition unit 10 of FIG. 1 (step S101). 50a in FIG. 5 is a keyword search result table showing a specific example of a search result searched with the keyword “Io ○”. This search result is a set of facilities that include the keyword “Io ○” as part of the reading pseudonym.

  Next, the name extraction process is repeated for the set of facilities as the search result in FIG. 5 (steps S102, S103, and S104 in FIG. 4). As a result of the name extraction process, a result obtained by thinning out the above-mentioned “nouns generally attached to facility names” and “place names” from the facility name shown in FIG. 5 and the reading pseudonym of the facility is acquired.

  In FIG. 6, 60a is substantially the same as the keyword search result table 50a of FIG. 60b is a result table of a name extraction process in which “nouns generally attached to facility names” and “place names” are thinned out.

  Next, the result 60b of the name extraction process 60b shown in FIG. 6 is sorted, and the facility in which only the character string completely matching the keyword is read and remains in the pseudonym is from the top of the list (higher in the list). They are arranged (step S105 in FIG. 4).

  70a in FIG. 7 is a list-up result in which the result 60b of the name extraction process in FIG. 6 is sorted, and the facilities in which only the character string that completely matches the keyword is read and left in the kana are arranged from the top of the list.

  Next, in step S106 of FIG. 4, the sort result 70a shown in FIG. 7 is displayed as a list on the display device 6 of FIG. 1, and the destination selection from the user is accepted. FIG. 8 is a display image diagram of the display 80a in the display means 6 of the navigation device 1 (FIG. 1) that displays the sort result 70a shown in FIG. 7 and accepts the selection of the destination from the user. “Io ○”, “Io ○ Odaka store”, and “Io ○ Higashiura store” that exist at the top of the list of FIG. 7 are displayed on the display 80a in the display means 6 as shown in FIG.

  Then, the touch switch 80c displayed as Io on the display 80a is pressed to display a map of the facility corresponding to "Io" on the map display unit 80b. When selecting other facilities, for example, Io Higashiura store, the location of Io Higashiura store may be touched.

  In order to select other facilities such as Aio Kariya in FIG. 7, the lower list is displayed by pressing the lower down switch 80e of the left up / down switches 80d and 80e.

  Next, details of the above-described name extraction process will be described. FIG. 9 is a detailed flowchart for performing a name extraction process for thinning out “nouns generally attached to facility names” and “place names” to the search result 50a shown in FIG. That is, FIG. 9 shows details of steps S102, S103, and S104 of FIG. The flowchart of FIG. 9 shows the detailed operation when the name extraction process is performed for the first facility “Io Kariya store” in the example shown in FIG.

  In FIG. 9, when the name extraction process is started, the keyword part is identified from the reading kana of the facility, and is divided into the keyword and other parts (step S200).

  For example, in the case of Aio ○ Kariya store in FIG. 6, the second to fifth characters of “Aiomarukariyaten” match the keyword, so the reading pseudonyms of this facility are “A”, “Iomaru”, “Kari” It is divided into three parts. Then, “A” and “Kariten” are extracted.

  Next, an address name and a reading pseudonym are acquired from the facility address code shown in FIG. If the address code is a JIS place name code and this facility is located in Noda-cho, Kariya City, Aichi Prefecture (Aichi Prefecture, Aichi Ken) (Aichi, Aichi) (Kariya City, Kariyashi) (Kariya, Kariya) ( Noda-cho, Nodacho) (Noda, Noda) can be acquired as “address famous place and reading pseudonym” (step S201 in FIG. 9).

  Next, for the “address name and reading pseudonym” acquired in step S201, the number of the acquired “address name and reading pseudonym” is the address composed of steps S202, S203, S204, S205, and S206 of FIG. Repeat the name extraction process.

  Among these, in step S203, it is determined whether the “address name” is included in the facility name. If the “address name” is not included, the process proceeds to step S206. If the address name is included, the process proceeds to step S204. In step S204, if the address reading pseudonym of the “address name” is not part of the keyword, the process proceeds to step S205. If the address reading pseudonym of the address name is part of the keyword, the process proceeds to step S206.

  For example, in step S203, it is determined whether or not the facility name includes “address name (Aichi Prefecture)”. If the “address name (Aichi Prefecture)” is not included, the process proceeds to step S206. If the “address name (Aichi Prefecture)” is included, the process proceeds to step S204. In step S204, if the address reading pseudonym “(Aichiken)” of “(Aichi Prefecture, Aichiken)” is not part of the keyword, the process proceeds to step S205. If the address reading pseudonym “(Aichiken)” of the address name is part of the keyword, the process proceeds to step S206.

  And in the above example, address name and reading pseudonym 1 (Aichi Prefecture, Aichi Ken), 2 (Aichi, Aichi), 3 (Kariya City, Kariyashi), 4 (Kariya Kariya), 5 (Noda Town) , Nodacho) and 6 (Noda, Noda) are repeated 6 times.

  In the case of the facility name “Io ○ Kariya store”, it is determined in step S203 whether or not “facility name” is included in the facility name. Since the “address name” is included, the process proceeds to step S204. In step S204, the address reading pseudonym “Kariya” of the above “address name” is not a part of the keyword “Io ○”, so the process proceeds to step S205. As described above, since the facility name “Aio Kariya store” includes “Kariya”, when processing is performed for (Kariya, Kariya), the process proceeds from step S203 to step S204.

  When it is determined in step S204 whether the address reading kana “Kariya” is part of the facility reading kana keyword, “Kariya” is a portion other than the keyword divided in step S200 “A” and It is included as part of “Kariten”. Therefore, it is determined that the facility reading kana “Kariya” is not part of the keyword, and the process proceeds to step S205.

  In step S205, it can be determined that the address name is included in the facility name, that is, the address name “Kariya” is included in the facility name “Aio Kariya store”. The address name and address reading pseudonym “Kariya, Kariya” are extracted from “Aio ○ Kariya store” and “Aio Marukari Yaten”. The extracted facility name is “Io ○” “Store”, and the extracted facility readings are “A”, “Iomaru” and “Ten”.

  Next, the generic noun extraction process of steps S207, S208, S209, S210, and S211 of FIG. The general nouns to be extracted are stored in the general noun database in the memory means 5 of FIG.

  The general noun database has nouns and reading pseudonyms, and names commonly used in facilities are registered. FIG. 10 is an example of a general noun database 100a prepared for use in the general noun extraction process of FIG.

  For all the general nouns included in the general noun database 100a in FIG. 10, the steps from step S207 to S211 in FIG. 9 are repeated to perform general noun extraction processing. By this process, (store, ten) is extracted from the above “Io ○”, “Store”, “A”, “Iomaru” and “Ten”, and as shown in FIG. “Io ○”. Moreover, the facility reading pseudonyms after extraction are “A” and “Iomaru”.

  The extracted facility name “Io ○” facility reading Kana is sorted as “A”, “Iomaru”, etc., and only the character strings that completely match the keywords are read and the facilities that remain in the reading Kana are arranged from the top of the list. In addition, when order is the same, we assume order. As a result, as shown in FIG. 7, “IO ○ Kariya store” is listed fourth.

  Accordingly, by pressing the down switch 80e of the display 80a of FIG. 8, “Io * Kariya store” (not shown) is displayed, and by touching this “Io * Kariya store”, the map display unit 80b displays “ The location or route of “Io ○ Kariya store” is displayed.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the following embodiments, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof will be omitted, and different configurations and features will be described.

  In the first embodiment, the corresponding place name is extracted based on the JIS place name code. However, the name of the facility is often a name that is not the name of the administrative division. For example, Nakamura-ku, Nagoya-shi, Aichi Prefecture, has many facilities that include locations based on stations such as “Meito Station”, “Meito Station Taikoguchi”, and “Meito Station Sakura Doriguchi” as place names.

  Therefore, it is desirable that facilities existing in Nakamura-ku, Nagoya-shi, Aichi Prefecture should be extracted by determining “Name Station”, “Name Station Dazaiguchi” and “Name Station Sakura Dori Exit” as place names. Therefore, a place name database that can acquire names that are not the names of the administrative divisions is prepared using the address code of Nakamura-ku, Nagoya, Aichi as a key.

  FIG. 11 is a table of the place name database 110a used in the address name extraction process for the address names used in the second embodiment. Using the place name database 110a in FIG. 11, for the facility whose address code is 0x10102010, “name station”, “name station taiyu exit”, etc., which are not place names in the administrative division, are also subject to address name extraction processing. I can do it.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows. For example, in the first embodiment described above, various types of information are extracted from the map database storage unit 3 or the memory unit 5 of FIG. 1, but the data communication unit 8, the radio base station 17, the telephone station 18, the circuit terminal device 20, Information necessary for processing may be obtained from the database 22 in the information center 19 via the server 21.

  In this way, by obtaining information necessary for processing from the database in the information center 19, a special address name that is used only in the region, and an address reading pseudonym or a general noun and a general noun reading pseudonym are obtained. Used to perform facility search display.

  Moreover, it can be used not only for vehicle navigation devices but also for various facility search and display devices as information processing terminals such as mobile phones.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 19 Information center 3 Map data storage means 4 Switch information input means 5 Memory means 6 Display means 9 Control means 10 Map data acquisition part 20a General structure of facility information database 22 Database in information center 30a Address code conversion table Structure 50a and 60a Keyword search result table 60b Name extraction process result table 70a List result 100a Generic noun database 110a Place name database Steps S102, S103, and S104 Name extraction process Step S106 Display processing means Steps S202 to S206 Name extraction process Address name extraction process in steps S207 to S211 General noun extraction process in the name extraction process

Claims (6)

In a facility search display device that inputs a character string consisting of a keyword that is the name of a facility, performs a keyword search, and lists the facilities that are the search results.
A facility information database storing information indicating the facility name of the facility, the reading pseudonym of the facility, and the address of the facility;
A general noun database in which general nouns composed of names commonly used in the facility and reading kana of the general nouns are registered;
Switch information input means for inputting the keyword to be searched by the user,
Search means for searching for a facility including the keyword from the facility information database, and obtaining a set of facilities including the keyword in a part of a reading pseudonym of the facility as a keyword search result;
For a set of facilities including the keyword as the keyword search results by the search means, than reading pseudonym of the facility, generally stick generic name the facility name, place names become address name, and address reading of pseudonym Name extracting means for thinning out,
Sorting means for obtaining a sorting result obtained by rearranging the result of the name extraction processing so that only the character strings that completely match the keyword remain in the reading pseudonym are arranged from the priority position in the list, and the sorting result A facility search display device comprising display processing means for displaying The name extracting means comprises address name extracting means and general noun extracting means,
The address name extracting means is means for acquiring an address name and an address reading pseudonym from the facility information database representing the address of the facility, and the acquired address name and the address reading pseudonym. And the number of address reading pseudonyms, consisting of means for repeatedly thinning out the address name and address reading pseudonym from the facility name and facility reading pseudonym in the set of facilities including the keyword,
The general noun extraction means is a general noun composed of names generally used in the facility and information representing the general noun from the general noun database in which the reading of the general noun is registered. Means for acquiring a reading of a general noun, and the acquired general noun and the reading of the general noun, the number of the acquired general noun and the reading of the general noun includes the keyword. 2. The facility search and display device according to claim 1, further comprising means for repeatedly thinning out the universal noun and the generic noun reading pseudonym from the facility name and the facility reading pseudonym in the set. The name extracting means has means for identifying the keyword part from the reading kana of the facility, and dividing the reading kana of the facility into the keyword part and other parts other than the keyword,
When the reading kana of the address acquired from the facility information database is not a part of the keyword, the reading of the address acquired from the facility information database from the facility name and the facility reading kana in the set of facilities including the keyword. When the reading of the general noun acquired from the general noun database is not a part of the keyword part, the general name is extracted from the facility name and the facility reading pseudonym in the set of facilities including the keyword. The facility search / display apparatus according to claim 1, wherein the reading of the general noun acquired from the noun database is thinned out.   A place name database that can obtain a place name that is not an administrative division name from the information indicating the address of the facility is provided, and the name extracting means thins out an address name that becomes the place name obtained from the place name database and a reading pseudonym of the address. The facility search and display device according to any one of claims 1 to 3.   The switch information input means is configured to input a destination to a navigation device, and the display processing means uses a display of the navigation device to display a list of facilities as the sorting results that are candidates for the destination. The facility search and display device according to any one of claims 1 to 4, wherein the facility search and display device is provided.   The facility information database representing the facility address or the general-purpose noun database obtains information necessary for processing from a database in an information center via data communication means and a radio base station. Item 6. The facility search and display device according to any one of Items 1 to 5.

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