JPWO2008105063A1 - Information display device, information display method, information display program, and recording medium - Google Patents

Abstract

The information display device (100) includes a reception unit (101) that receives information about the feature at the search point and information about the search point input by the user, and a reading unit (102 that reads map information stored in advance. ), Information on the feature of the search point received by the receiving unit (101), information on the vicinity of the search point, and map information read by the reading unit (102), candidate search that is a candidate for the search point A search unit (103) that searches for a point, and an output unit (104) that outputs a candidate search point searched by the search unit (103).

Description

  The present invention relates to an information display device, an information display method, an information display program, and a recording medium. However, the use of the present invention is not limited to the above-described information display device, information display method, information display program, and recording medium.

  2. Description of the Related Art In recent years, an information display device that displays a facility desired by a user is mounted on a moving body such as a vehicle. In such an information display device, in order to display a facility desired by the user, for example, if the user can designate a desired point based on a map displayed on the screen, the direct pointer is The facility can be displayed by matching the point where the facility exists. Also, even if the user cannot specify the location where the facility exists based on the map displayed on the screen, if the user has the address of the desired location, It is also possible to display a desired point by inputting the address as text.

  As described above, when the user obtains clear position information about a desired point, the desired point can be displayed, but the user has obtained clear position information about the desired point. If not, the method described above cannot display a desired point. In addition, when the user does not have clear location information about the desired point, for example, when the other person asks how to get to the point to be displayed or the place where the user wants to display has been visited before Even if you do not remember the location clearly.

  Even in such a case, the user obtains at least some information in the vicinity of the desired point, such as a street name in the vicinity of the desired point and a name of a nearby facility. Therefore, in order to display the desired screen, based on the street name in the vicinity of the place to be displayed (desired display location) and the facility name in the vicinity, the street name and facility name in the vicinity of the desired display location are combined, and An index table that associates this combination with the map number (display screen number) is provided, and the map of the point corresponding to the desired display location is displayed by the user specifying the facility name, road name, etc. Such a technique has been proposed (see, for example, Patent Document 1 below).

JP 2002-202977 A

  However, the technique of Patent Document 1 described above is based on the premise that the user knows the street name and the name of the facility, and if the user does not know the name of the street or the facility, a desired point can be searched. One example is the problem of being unable to do so.

  In order to solve the above-described problems and achieve the object, the information display device according to the first aspect of the present invention is the information input by the user regarding the feature of the search point to be searched and the information in the vicinity of the search point. Receiving means for receiving map information, reading means for reading pre-stored map information, information on the features of the search points received by the receiving means and information on the vicinity of the search points, and map information read by the reading means A search means for searching for a candidate search point that is a search point candidate and an output means for outputting the candidate search spot searched by the search means.

  According to an eighth aspect of the present invention, there is provided an information display method comprising: an accepting step for receiving information about a feature of a search point to be searched and information in the vicinity of the search point input by a user; and a map stored in advance Candidate search that is a candidate for a search point based on a reading step for reading information, information on the feature of the search point received by the receiving step, information on the vicinity of the search point, and map information read by the reading step A search step for searching for a point; and an output step for outputting a candidate search point searched by the search step.

  According to a ninth aspect of the present invention, an information display program causes a computer to execute the information display method according to the eighth aspect.

  A recording medium according to a tenth aspect of the invention is characterized in that the information display program according to the ninth aspect is recorded in a computer-readable manner.

FIG. 1 is a block diagram illustrating an example of a functional configuration of the information display apparatus according to the embodiment. FIG. 2 is a flowchart illustrating an example of an information display processing procedure of the information display apparatus according to the embodiment. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device according to the embodiment. FIG. 4 is a flowchart illustrating an example of the information display process of the navigation device according to the embodiment. FIG. 5 is a flowchart illustrating the destination point search process of the navigation device according to the embodiment. FIG. 6 is an explanatory diagram illustrating an example of a destination point search result of the navigation device according to the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Information display apparatus 101 Reception part 102 Reading part 103 Search part 104 Output part 105 Discriminating part 106 Determination part 107 Calculation part

  Exemplary embodiments of an information display device, an information display method, an information display program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
(Functional configuration of information display device)
A functional configuration of the information display apparatus 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram illustrating an example of a functional configuration of the information display apparatus according to the embodiment. In FIG. 1, the information display device 100 is mounted on a moving body, and includes a reception unit 101, a reading unit 102, a search unit 103, and an output unit 104.

  The accepting unit 101 accepts information related to the feature of the search point to be searched and information in the vicinity of the search point, which are input by the user. Information on the feature of the search point is information that does not include latitude information and longitude information. The information related to the feature at the search point is, for example, information on the facility to be searched, and specifically, is information related to the genre and name such as a restaurant, a convenience store, and a gas station.

  The information on the feature at the search point may be information classified into a restaurant, a Japanese restaurant, a Chinese restaurant, and the like that further limit information on the genre of the restaurant, for example. The information on the feature at the search point includes information on the name such as a trade name when searching for a specific store name (for example, a store in front of Kawagoe Station) in a franchise chain, for example. The input by the user mainly includes text input by the user, but may be voice input.

  The information in the vicinity of the search point is location information on facilities around the search point and information on roads around the search point. Specifically, information about the vicinity of the search point exists in position information based on the intersection, information on the number of lanes on the adjacent road, information on the type of the adjacent road, information on the adjacent facility, or the designated direction Itemized as information on the facility to be included, and preferably includes at least one of them. In addition, the information in the vicinity of the search point may include, for example, information on the gradient of the adjacent road, information on the curve, information on the presence / absence of a parking lot, etc. as the shape of the adjacent road. . The information in the vicinity of the search point may be information that does not include latitude information and longitude information.

  Note that the position information based on the intersection is information on the position of the search point to be searched with respect to the intersection. For example, the position of the intersection, the corner of the T-shaped intersection, and the intersection The information is not adjacent. The information on the number of lanes of adjacent roads is information on how many lanes the search point to be searched faces, such as 1 lane, 2 lanes, 3 lanes, 4 lanes or more. is there.

  The information on the type of adjacent road is information on what type of road the search point to be searched faces, such as an expressway, general road, national road, main local road, Information such as streets and one-way streets. The information regarding the adjacent facility is information regarding what facility the search point to be searched is adjacent to, for example, information such as a convenience store on the right side and a bank on the left side. Information about the facility that exists in the specified direction is information such as what kind of facility exists in the specified direction centering on the search point to be searched, such as a convenience store on the north side, a bank on the south side, Information.

  The reading unit 102 reads map information stored in advance. The reading unit 102 may read map information within a range designated by the user. The designated range may be within a designated distance range, a designated direction range, or a designated region. Specifically, information such as a municipality, information within a predetermined area from the current location, and information such as the vicinity of a registration point may be mentioned. The reading unit 102 may read map information based on travel history information that has traveled in the past.

  The search unit 103 selects candidate search points that are candidates for the search points based on the information on the features of the search points received by the receiving unit 101 and information on the vicinity of the search points and the map information read by the reading unit 102. Search for. The search unit 103 searches for candidate search points by, for example, comparing information related to the features of the search points input as text data and information near the search points with map information.

  The output unit 104 outputs candidate search points searched by the search unit 103. The output format may be a list display of search results on a display screen such as a display, or may be an audio output.

  In such a configuration, the reception unit 101 receives a plurality of itemized information in the vicinity of the search point, and the search unit 103 includes a plurality of itemized information in the vicinity of the search point received by the reception unit 101 and the reading unit 102. The candidate search points may be narrowed down based on the map information read by.

  Further, the search unit 103 may include a determination unit 105 and a determination unit 106. The discriminating unit 105 discriminates, for each of the plurality of items, whether or not there are matching points between the plurality of itemized information in the vicinity of the search point and the map information read by the reading unit 102. When the determination unit 105 determines that at least one item out of a plurality of itemized information in the vicinity of the search point and the map information have a matching point, the determination unit 106 selects a matching point on the map information as a candidate. Determine as a search point.

  Further, in the configuration including the determination unit 105 and the determination unit 106, the search unit 103 may include a calculation unit 107. When the determining unit 105 determines that at least one item out of the plurality of itemized information in the vicinity of the search point has a matching point with the map information, the calculating unit 107 calculates a matching point for each determined item. Each is scored and the total score is calculated. In this case, the determination unit 106 determines the priority of the candidate search points according to the total score calculated by the calculation unit 107.

  In such a configuration, the accepting unit 101 accepts importance information indicating the importance of the information among a plurality of itemized information in the vicinity of the search point, and matches the information in the vicinity of the search point and the map information. When there is a point, the calculation unit 107 may score high according to the importance. Importance information is itemized information in the vicinity of a search point, as location information based on an intersection, information on the number of lanes on an adjacent road, information on the type of an adjacent road, information on an adjacent facility, or This is information on which information is important among facilities related to a specified direction, and is attached to each itemized information according to the importance.

(Information display processing procedure of information display device)
Next, an information display processing procedure of the information display device 100 will be described with reference to FIG. FIG. 2 is a flowchart of an example of an information display processing procedure of the information display apparatus according to the first embodiment.

  In the flowchart of FIG. 2, first, the information display device 100 waits for receiving information related to the feature of the search point and information in the vicinity of the search point input by the user (step S201: No loop). When the information about the feature and the information near the search point are received (step S201: Yes), the reading unit 102 reads the map information (step S202). Then, within the range of the read map information, the determination unit 105 determines whether there is a facility corresponding to the search point information (step S203).

  In step S203, when there is a facility corresponding to the information of the search point (step S203: Yes), the search unit 103 searches for the candidate search point based on the information in the vicinity of the search point and the map information (step S204). . And a candidate search point is output by the output part 104 (step S205), and a series of processes are complete | finished. On the other hand, if there is no facility corresponding to the search point information in the range of the read map information in step S203 (step S203: No), the series of processes is terminated.

  As described above, according to the information display apparatus 100 according to the present embodiment, the candidate search that is a candidate for the search point based on the information about the feature of the search point, the information in the vicinity of the search point, and the map information. Search for a point. Therefore, even if the user does not know the name of the facility or road, the search point can be specified. This allows users to learn how to get to the location they want to display, or if they ’ve been there before and ca n’t remember the search location clearly, The search point can be specified.

  Further, according to the information display apparatus 100 according to the present embodiment, if the map information within the range specified by the user is read, the search range can be limited without reading unnecessary map information. The search speed can be increased and the search accuracy can be improved. In addition, if the map information is read based on the travel history information that has traveled in the past, the search range can be limited by reading only the map information that is likely to be a candidate search point, so the search speed Speeding up and search accuracy can be improved.

  Moreover, according to the information display apparatus 100 according to the present embodiment, a plurality of itemized information in the vicinity of the search point is received, and the plurality of itemized information in the vicinity of the received search point and the read map information are used. The candidate search points may be narrowed down. In this way, by itemizing the information in the vicinity of the search point, the information in the vicinity of the search point can be easily compared with the map information, so that the candidate search points can be narrowed down with a simple process.

  Further, according to the information display device 100 according to the present embodiment, it is determined for each of the plurality of items whether or not there is a match between the plurality of itemized information in the vicinity of the search point and the map information, and the search point is determined. When it is determined that there is a matching point between at least one item among the plurality of items of information in the vicinity and the map information, a matching point on the map information may be determined as a candidate search point. In this way, if the information in the vicinity of the search point is itemized and it is determined whether the information in the vicinity of the search point matches the map information, the candidate search point can be determined by a simple process.

  Further, according to the information display device 100 according to the present embodiment, when it is determined that there is a coincidence between at least one item and the map information among the plurality of itemized information in the vicinity of the search point, the determination is made. The matching points for each item may be scored to calculate the total score, and the priority of the candidate search points may be determined according to the calculated total score. Thereby, it can output in an order from the thing with high possibility corresponding to a candidate search point.

  Examples of the present invention will be described below. In the embodiment, an example in which the information display device 100 of the present invention is implemented by a navigation device mounted on a vehicle will be described.

(Hardware configuration of navigation device 300)
The hardware configuration of the navigation device 300 according to the embodiment will be described with reference to FIG. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device according to the embodiment. In FIG. 3, a navigation device 300 is mounted on a moving body such as a vehicle, and includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, and an audio. I / F (interface) 308, microphone 309, speaker 310, input device 311, video I / F 312, display 313, communication I / F 314, GPS unit 315, various sensors 316, and camera 317 And. Each component 301 to 317 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records various programs such as a boot program, a communication program, a route search program, and a destination search program. The RAM 303 is used as a work area for the CPU 301.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls the reading / writing of the data with respect to the optical disk 307 according to control of CPU301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, the removable recording medium may be an MO, a memory card, or the like.

  One example of information recorded on the magnetic disk 305 or the optical disk 307 is map information used for route search / route guidance. The map information includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road. The map information is displayed two-dimensionally or three-dimensionally on the display screen of the display 313. Portrayed. When the navigation device 300 is guiding a route, the map information and a vehicle mark indicating the current position of the vehicle acquired by the GPS unit 315 to be described later are displayed in an overlapping manner.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. Sound is output from the speaker 310.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, a mouse, and a touch panel.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 includes, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 313 is configured by a control IC or the like.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 is configured by, for example, an FM tuner.

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle. The output information of the GPS unit 315 is used when the current position of the vehicle is calculated by the CPU 301 together with output values of various sensors 316 described later. The information indicating the current location is information for specifying one point on the map information such as latitude / longitude and altitude.

  The various sensors 316 include a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, and the like, and output information that can determine the position and behavior of the vehicle. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the measurement of the change in speed and direction.

  The camera 317 captures images inside or outside the vehicle. The video may be either a still image or a moving image. In addition, the video imaged by the camera 317 is output to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312.

  The information display device 100 illustrated in FIG. 1 includes a reception unit 101, a reading unit 102, a search unit 103, an output unit 104, a determination unit 105, a determination unit 106, and a calculation unit 107. The ROM 302 in the navigation device 300 illustrated in FIG. The CPU 301 executes a predetermined program using programs and data recorded in the RAM 303, the magnetic disk 305, the optical disk 307, etc., and controls each part in the navigation device 300, thereby realizing its function.

  That is, the navigation device 300 according to the present embodiment executes functions of the information display device 100 shown in FIG. 1 by executing a destination search program recorded in the ROM 302 as a recording medium in the navigation device 300. The information display processing procedure shown in FIG.

(An example of navigation device information display processing)
Next, an example of information display processing performed by the navigation device 300 according to the embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating an example of the information display process of the navigation device according to the embodiment. In the present embodiment, the facility search process according to the present invention will be described as a destination search process. Specifically, in this embodiment, the clear location of the destination point restaurant X is unknown, and a process for searching for a destination point based on information in the vicinity of the restaurant X will be described.

  In the flowchart of FIG. 4, the navigation apparatus 300 waits for receiving the information on the destination point and the information on the vicinity of the destination point by the user's operation input (step S401: No loop), and the destination point information and the destination point. When the neighboring information is received (step S401: Yes), for example, the map information within 10 km from the current position is read from the map information recorded in advance (step S402). In this embodiment, the information on the destination point is information that the destination point is a restaurant, and the information near the destination point is information on roads and facilities in the vicinity of the restaurant X. Further, the read map information includes travel history information that the vehicle has traveled in the past. The destination information does not include latitude information and longitude information.

  Then, based on the information on the destination point and the map information, it is determined whether or not there is a restaurant within 10 km from the current position (step S403). In step S403, when it is determined that there is a restaurant within 10 km from the current position (step S403: Yes), a restaurant suitable as a candidate point for restaurant X is searched based on information in the vicinity of restaurant X and map information. (Step S404). In addition, the search process of the restaurant used as the candidate of the restaurant X is demonstrated in detail using FIG. 5 mentioned later.

  Then, as restaurants suitable for restaurant X, restaurants that are candidates in order of priority (in order appropriate) are added to the search result list (step S405), and the series of processing ends. On the other hand, when it is determined in step S403 that there is no restaurant within 10 km from the current position (step S403: No), the series of processes is terminated.

(Details of navigation device information display processing)
Next, the destination point search process performed by the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 5 is a flowchart illustrating the destination point search process of the navigation device according to the embodiment. FIG. 5 shows details of the processing after step S404 shown in FIG.

  In the flowchart of FIG. 5, the navigation device 300 waits for an instruction to start a search (step S501: No loop), and if it is determined that there is an instruction to start a search (step S501: Yes), The predetermined itemized information is acquired from the plurality of itemized information (step S502).

  In this embodiment, the itemized information includes position information based on an intersection, information on the number of lanes on an adjacent road, information on the type of an adjacent road, information on an adjacent facility, or Information about facilities existing in the designated direction is obtained, and information is acquired one by one from this information and searched. First, it is assumed that the information “near an intersection” has been acquired.

  Then, it is determined whether or not there is a coincidence between predetermined itemized information and map information (step S503). Specifically, for example, it is determined whether there is a restaurant near the intersection. This map information is the map information read in step S402 in FIG. 4 and within 10 km from the current position. In step S503, when it is determined that there is a match between the predetermined itemized information and the map information (step S503: Yes), the restaurant at the match is set as a candidate for restaurant X, and the corresponding restaurant Is extracted (step S504). That is, in this case, all restaurants that are within 10 km from the current position and that exist near the intersection are extracted.

  Then, it is determined whether the importance level information is attached to the predetermined itemized information (step S505). Importance information refers to location information based on intersections, information about the number of lanes on adjacent roads, information about types of adjacent roads, information about adjacent facilities, or information about facilities that exist in a specified direction Of these, it is information indicating which information is regarded as important, and details will be described later.

  If it is determined in step S505 that the importance information is attached (step S505: Yes), that is, if the importance information is attached to the information that exists near the intersection, the information is extracted in step S504. A high score corresponding to the importance is given to the restaurant (step S506). In addition, when importance information is not attached | subjected (step S505: No), 1 point is provided as a normal score with respect to the restaurant extracted at step S504 (step S507).

  Then, it is determined whether there is any other itemized information (step S508). On the other hand, also in step S503, when it is determined that there is no coincidence between the predetermined itemized information and the map information (step S503: No), the process proceeds to step S508. When there are five itemized information as in this embodiment, it is determined that there is other itemized information in step S508 (step S508: Yes), and the above-described steps S502 to S508 are performed. Repeat the process as appropriate.

  Specifically, for example, when information “adjacent to a two-lane road” is input as information regarding the number of lanes of adjacent roads as other itemized information, this information and map information Based on the above, a search is made for points to be scored. On the other hand, if it is determined in step S508 that there is no other itemized information by appropriately repeating the processing from step S501 to step S507 (step S508: No), the repeated steps S501 to S508 are performed. Terminate the process.

  If it is determined in step S508 that there is no other itemized information (step S508: No), it is determined whether there is a corresponding restaurant (step S509). In step S509, when it is determined that there is a corresponding restaurant (step S509: Yes), a total score is calculated for the score given to the extracted restaurant (step S510).

  And according to the total score, the priority of the restaurant which becomes a candidate is determined (step S511). And a candidate restaurant is added to a search result list in order of priority (Step S512), and a series of processings are ended. On the other hand, when it is determined in step S509 that there is no corresponding restaurant (step S509: No), the series of processing ends.

  Next, a specific search result of the destination point search process performed by the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 6 is an explanatory diagram illustrating an example of a destination point search result of the navigation device according to the embodiment.

  In FIG. 6, the search result 600 includes information 610 in the vicinity of the restaurant X, importance 620, and candidate destination point 630. Based on the information 610 and importance 620 in the vicinity of the restaurant X, the candidate purpose The point 630 is scored. Each item of the information 610 near the restaurant X includes “near intersection” 611, “adjacent to a two-lane road” 612, “adjacent to a national road” 613, “next to a convenience store” 614, “bank to the north” 615. Has been.

  And the importance 620 is described corresponding to each item. The importance 620 is shown in five levels from 1 to 5, for example, depending on the item, with importance 1 being the least important item and importance 5 being the most important item. The degree of importance 620 is divided into five stages, but it may be divided into two stages of importance or not, and may be divided into any number of stages.

  As for the provision of scores, based on each item and map information, for example, when there is a coincidence in “bank in the north” 615 that is an item of importance 1, a score is given to the corresponding store as a candidate destination point 630 1 point is awarded. Further, when there is a coincidence in “Near intersection” 611 which is an item of importance 5, 5 points are given to the corresponding store as the candidate destination point 630. In addition, although provision of the score was made into 1 point-5 points in steps according to the importance 1-5, it is not restricted to this.

  Next, a specific candidate destination point 630 will be described as an example. As a result of searching based on the information of the item of “Near Intersection” 611 with importance 5 and map information, A store 631 and B store If the store 632 matches the store 632, that is, if the store A 631 and the store B 632 are extracted as restaurants near the intersection, the score 5 corresponding to the importance 5 is given to the store A 631 and the store B 632. Points are awarded. The search for the item “near the intersection” 611 may be, for example, a search for restaurants within 100 m near the intersection. The distance may be calculated based on the latitude / longitude information.

  Furthermore, as a result of performing a search based on the information of the item “adjacent to the two-lane road” 612 and the map information, if the store A 631 and the store C 633 match, that is, it is adjacent to the two-lane road. When A store 631 and C store 633 are extracted as restaurants, 4 points corresponding to importance 4 are given to A store 631 and C store 633.

  The search for the item “adjacent to a two-lane road” 612, for example, first determines whether or not a candidate restaurant faces the road. If information on whether or not a candidate restaurant faces a road is recorded in advance as search data, the search data can be used, but if there is no search data, latitude / longitude information can be used. Based on the above, road information related to the shape of the road is acquired. With respect to the starting road, a perpendicular line is drawn from the candidate destination point, the distance of the perpendicular line is calculated based on the latitude and longitude information, and if the calculated distance is within a threshold (for example, within 100 m), it is determined as an adjacent road. Judgment can be made. When it is determined that there is an adjacent road, information on the number of lanes on the road is acquired.

  Further, as a result of searching based on the information of the item “adjacent to the national highway” 613 and the map information, when only the store A 631 matches, that is, the restaurant A 631 is extracted as a restaurant adjacent to the national highway. In this case, a score of 3 points corresponding to the importance 3 is given to the store A 631. Note that the search for the item “adjacent to the national road” 613 is similar to the search for the item “adjacent to the two-lane road” 612 described above, and whether or not the candidate restaurant faces the road first. Judging. When it is determined that there is an adjacent road, information regarding the type of the road is acquired.

  Similarly, the item “important next to the convenience store” 614 with the importance level 2 and the item “bank on the north side” 615 with the importance level 1 are similarly searched. Note that the search for the item “bank on the north side” 615 searches whether there is a bank on the north side within a certain range (for example, within 500 m). That is, such a search is performed by determining whether or not there is a restaurant on the south side with a bank at the center. The direction and distance are calculated based on the latitude and longitude information. For example, a restaurant with a low latitude is located on the south side when viewed from the bank (the bank is located on the north side when viewed from the destination). The

  By the search based on the information 610 near the restaurant X and the map information, the total score 640 is 15 points for the store A 631, 8 points for the store B 632, and 5 points for the store C 633. Since the priority 650 is assigned in the descending order of the total score 640, the A store 631 is the first priority, the B store 632 is the second priority, and the C store 633 is the third priority. In this way, the candidate destination point 630 of the restaurant X is output as a search result list in the order of the A store 631, the B store 632, and the C store 633 in the descending order of possibility.

  As described above, according to the navigation device 300 according to the present embodiment, based on the information about the feature of the destination point that is a restaurant, information about the restaurant X, and map information, Search for candidate restaurants. Therefore, the restaurant X can be searched even if the user does not know the name of the facility or road. As a result, if the user is taught how to go to the restaurant X, or if he / she has been to the restaurant X before, the user cannot clearly remember the location, etc. , Restaurant X can be searched. In the present embodiment, the case of searching for a destination has been described as an example, but such processing can also be applied to the case of searching for facilities on map information.

  Further, according to the navigation device 300 according to the present embodiment, since the map information within the range specified by the user is read, the search range can be limited without reading unnecessary map information, and the search speed can be reduced. Speedup and search accuracy can be improved. Furthermore, since the map information is read based on the travel history information that has traveled in the past, the search range can be limited by reading only the map information of places that are likely to correspond to the restaurant X. Speedup and search accuracy can be improved.

  Moreover, according to the navigation apparatus 300 concerning a present Example, the several itemized information of the restaurant X vicinity is received, It becomes a candidate based on the received several itemized information of the restaurant X vicinity, and map information. Narrow down restaurants. In this way, by itemizing the information in the vicinity of the restaurant X, it is possible to easily compare the information in the vicinity of the restaurant X with the map information, so that it is possible to narrow down candidate restaurants by simple processing. it can.

  Further, according to the navigation device 300 according to the present embodiment, it is determined for each of the plurality of items whether or not there is a match between the plurality of itemized information in the vicinity of the restaurant X and the map information. When it is determined that there is a matching point in at least one item of the plurality of itemized information and the map information, the matching point on the map information is determined as a candidate restaurant. As described above, the information in the vicinity of the restaurant X is itemized, and it is determined whether or not the information in the vicinity of the restaurant X matches the map information, so that a candidate restaurant can be determined by a simple process. it can.

  According to the navigation apparatus 300 according to the present embodiment, when it is determined that at least one item out of a plurality of itemized information in the vicinity of the restaurant X has a match point with the map information, a match is made for each determined item. Each point was scored to calculate the total score, and the priority of the candidate destination point was determined according to the calculated total score. Thereby, it can output in order from the thing with high possibility corresponding to the restaurant X.

  As described above, according to the information display device, the information display method, the information display program, and the storage medium of the present invention, the navigation device 300 is information about the feature at the search point that it is a restaurant and the restaurant X. A restaurant serving as a candidate for the restaurant X is searched based on the neighboring information and the map information. Therefore, the restaurant X can be searched even if the user does not know the name of the facility or road. As a result, if the user is taught how to go to the restaurant X, or if he / she has been to the restaurant X before, the user cannot clearly remember the location, etc. , Restaurant X can be searched.

  The information display method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. Further, this program may be a transmission medium that can be distributed via a network such as the Internet.

  The present invention relates to an information display device, an information display method, an information display program, and a recording medium. However, the use of the present invention is not limited to the above-described information display device, information display method, information display program, and recording medium.

  2. Description of the Related Art In recent years, an information display device that displays a facility desired by a user is mounted on a moving body such as a vehicle. In such an information display device, in order to display a facility desired by the user, for example, if the user can designate a desired point based on a map displayed on the screen, the direct pointer is The facility can be displayed by matching the point where the facility exists. Also, even if the user cannot specify the location where the facility exists based on the map displayed on the screen, if the user has the address of the desired location, It is also possible to display a desired point by inputting the address as text.

  As described above, when the user obtains clear position information about a desired point, the desired point can be displayed, but the user has obtained clear position information about the desired point. If not, the method described above cannot display a desired point. In addition, when the user does not have clear location information about the desired point, for example, when the other person asks how to get to the point to be displayed or the place where the user wants to display has been visited before Even if you do not remember the location clearly.

  Even in such a case, the user obtains at least some information in the vicinity of the desired point, such as a street name in the vicinity of the desired point and a name of a nearby facility. Therefore, in order to display the desired screen, based on the street name in the vicinity of the place to be displayed (desired display location) and the facility name in the vicinity, the street name and facility name in the vicinity of the desired display location are combined, and An index table that associates this combination with the map number (display screen number) is provided, and the map of the point corresponding to the desired display location is displayed by the user specifying the facility name, road name, etc. Such a technique has been proposed (see, for example, Patent Document 1 below).

JP 2002-202977 A

  However, the technique of Patent Document 1 described above is based on the premise that the user knows the street name and the name of the facility, and if the user does not know the name of the street or the facility, a desired point can be searched. One example is the problem of being unable to do so.

  In order to solve the above-described problems and achieve the object, the information display device according to the first aspect of the present invention is the information input by the user regarding the feature of the search point to be searched, and the location near the search point. Receiving means for receiving information about the object and information on the vicinity of the search point including positional information indicating the positional relationship between the feature of the search point and the feature near the search point; and reading the pre-stored map information Search for candidate search points that are candidates for the search points based on the means, information on the features of the search points received by the receiving means, information on the vicinity of the search points, and map information read by the reading means Search means for outputting, and output means for outputting candidate search points searched by the search means.

  According to an eighth aspect of the present invention, there is provided an information display method comprising: information relating to a feature of a search point to be searched, information relating to a feature in the vicinity of the search point, and feature of the search point input by a user; A receiving step for receiving information on the vicinity of the search point including positional information indicating a positional relationship with the feature near the search point, a reading step for reading map information stored in advance, and a search point received by the receiving step A search step for searching for candidate search points that are candidates for a search point based on information on the features of the object and information on the vicinity of the search point and the map information read by the reading step; An output step of outputting the candidate search points.

  According to a ninth aspect of the present invention, an information display program causes a computer to execute the information display method according to the eighth aspect.

  A recording medium according to a tenth aspect of the invention is characterized in that the information display program according to the ninth aspect is recorded in a computer-readable manner.

It is a block diagram which shows an example of a functional structure of the information display apparatus concerning embodiment. It is a flowchart which shows an example of the information display process sequence of the information display apparatus concerning embodiment. It is a block diagram which shows an example of the hardware constitutions of the navigation apparatus concerning an Example. It is a flowchart which shows an example of the information display process of the navigation apparatus concerning an Example. It is a flowchart which shows the destination point search process of the navigation apparatus concerning an Example. It is explanatory drawing which shows an example of the destination point search result of the navigation apparatus concerning an Example.

  Exemplary embodiments of an information display device, an information display method, an information display program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
(Functional configuration of information display device)
A functional configuration of the information display apparatus 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram illustrating an example of a functional configuration of the information display apparatus according to the embodiment. In FIG. 1, the information display device 100 is mounted on a moving body, and includes a reception unit 101, a reading unit 102, a search unit 103, and an output unit 104.

  The accepting unit 101 accepts information related to the feature of the search point to be searched and information in the vicinity of the search point, which are input by the user. Information on the feature of the search point is information that does not include latitude information and longitude information. The information related to the feature at the search point is, for example, information on the facility to be searched, and specifically, is information related to the genre and name such as a restaurant, a convenience store, and a gas station.

  The information on the feature at the search point may be information classified into a restaurant, a Japanese restaurant, a Chinese restaurant, and the like that further limit information on the genre of the restaurant, for example. The information on the feature at the search point includes information on the name such as a trade name when searching for a specific store name (for example, a store in front of Kawagoe Station) in a franchise chain, for example. The input by the user mainly includes text input by the user, but may be voice input.

  The information in the vicinity of the search point is location information on facilities around the search point and information on roads around the search point. Specifically, information about the vicinity of the search point exists in position information based on the intersection, information on the number of lanes on the adjacent road, information on the type of the adjacent road, information on the adjacent facility, or the designated direction Itemized as information on the facility to be included, and preferably includes at least one of them. In addition, the information in the vicinity of the search point may include, for example, information on the gradient of the adjacent road, information on the curve, information on the presence / absence of a parking lot, etc. as the shape of the adjacent road. . The information in the vicinity of the search point may be information that does not include latitude information and longitude information.

  Note that the position information based on the intersection is information on the position of the search point to be searched with respect to the intersection. For example, the position of the intersection, the corner of the T-shaped intersection, and the intersection The information is not adjacent. The information on the number of lanes of adjacent roads is information on how many lanes the search point to be searched faces, such as 1 lane, 2 lanes, 3 lanes, 4 lanes or more. is there.

  The information on the type of adjacent road is information on what type of road the search point to be searched faces, such as an expressway, general road, national road, main local road, Information such as streets and one-way streets. The information regarding the adjacent facility is information regarding what facility the search point to be searched is adjacent to, for example, information such as a convenience store on the right side and a bank on the left side. Information about the facility that exists in the specified direction is information such as what kind of facility exists in the specified direction centering on the search point to be searched, such as a convenience store on the north side, a bank on the south side, Information.

  The reading unit 102 reads map information stored in advance. The reading unit 102 may read map information within a range designated by the user. The designated range may be within a designated distance range, a designated direction range, or a designated region. Specifically, information such as a municipality, information within a predetermined area from the current location, and information such as the vicinity of a registration point may be mentioned. The reading unit 102 may read map information based on travel history information that has traveled in the past.

  The search unit 103 selects candidate search points that are candidates for the search points based on the information on the features of the search points received by the receiving unit 101 and information on the vicinity of the search points and the map information read by the reading unit 102. Search for. The search unit 103 searches for candidate search points by, for example, comparing information related to the features of the search points input as text data and information near the search points with map information.

  The output unit 104 outputs candidate search points searched by the search unit 103. The output format may be a list display of search results on a display screen such as a display, or may be an audio output.

  In such a configuration, the reception unit 101 receives a plurality of itemized information in the vicinity of the search point, and the search unit 103 includes a plurality of itemized information in the vicinity of the search point received by the reception unit 101 and the reading unit 102. The candidate search points may be narrowed down based on the map information read by.

  Further, the search unit 103 may include a determination unit 105 and a determination unit 106. The discriminating unit 105 discriminates, for each of the plurality of items, whether or not there are matching points between the plurality of itemized information in the vicinity of the search point and the map information read by the reading unit 102. When the determination unit 105 determines that at least one item out of a plurality of itemized information in the vicinity of the search point and the map information have a matching point, the determination unit 106 selects a matching point on the map information as a candidate. Determine as a search point.

  Further, in the configuration including the determination unit 105 and the determination unit 106, the search unit 103 may include a calculation unit 107. When the determining unit 105 determines that at least one item out of the plurality of itemized information in the vicinity of the search point has a matching point with the map information, the calculating unit 107 calculates a matching point for each determined item. Each is scored and the total score is calculated. In this case, the determination unit 106 determines the priority of the candidate search points according to the total score calculated by the calculation unit 107.

  In such a configuration, the accepting unit 101 accepts importance information indicating the importance of the information among a plurality of itemized information in the vicinity of the search point, and matches the information in the vicinity of the search point and the map information. When there is a point, the calculation unit 107 may score high according to the importance. Importance information is itemized information in the vicinity of a search point, as location information based on an intersection, information on the number of lanes on an adjacent road, information on the type of an adjacent road, information on an adjacent facility, or This is information on which information is important among facilities related to a specified direction, and is attached to each itemized information according to the importance.

(Information display processing procedure of information display device)
Next, an information display processing procedure of the information display device 100 will be described with reference to FIG. FIG. 2 is a flowchart of an example of an information display processing procedure of the information display apparatus according to the first embodiment.

  In the flowchart of FIG. 2, first, the information display device 100 waits for receiving information related to the feature of the search point and information in the vicinity of the search point input by the user (step S201: No loop). When the information about the feature and the information near the search point are received (step S201: Yes), the reading unit 102 reads the map information (step S202). Then, within the range of the read map information, the determination unit 105 determines whether there is a facility corresponding to the search point information (step S203).

  In step S203, when there is a facility corresponding to the information of the search point (step S203: Yes), the search unit 103 searches for the candidate search point based on the information in the vicinity of the search point and the map information (step S204). . And a candidate search point is output by the output part 104 (step S205), and a series of processes are complete | finished. On the other hand, if there is no facility corresponding to the search point information in the range of the read map information in step S203 (step S203: No), the series of processes is terminated.

  As described above, according to the information display apparatus 100 according to the present embodiment, the candidate search that is a candidate for the search point based on the information about the feature of the search point, the information in the vicinity of the search point, and the map information. Search for a point. Therefore, even if the user does not know the name of the facility or road, the search point can be specified. This allows users to learn how to get to the location they want to display, or if they ’ve been there before and ca n’t remember the search location clearly, The search point can be specified.

  Further, according to the information display apparatus 100 according to the present embodiment, if the map information within the range specified by the user is read, the search range can be limited without reading unnecessary map information. The search speed can be increased and the search accuracy can be improved. In addition, if the map information is read based on the travel history information that has traveled in the past, the search range can be limited by reading only the map information that is likely to be a candidate search point, so the search speed Speeding up and search accuracy can be improved.

  Moreover, according to the information display apparatus 100 according to the present embodiment, a plurality of itemized information in the vicinity of the search point is received, and the plurality of itemized information in the vicinity of the received search point and the read map information are used. The candidate search points may be narrowed down. In this way, by itemizing the information in the vicinity of the search point, the information in the vicinity of the search point can be easily compared with the map information, so that the candidate search points can be narrowed down with a simple process.

  Further, according to the information display device 100 according to the present embodiment, it is determined for each of the plurality of items whether or not there is a match between the plurality of itemized information in the vicinity of the search point and the map information, and the search point is determined. When it is determined that there is a matching point between at least one item among the plurality of items of information in the vicinity and the map information, a matching point on the map information may be determined as a candidate search point. In this way, if the information in the vicinity of the search point is itemized and it is determined whether the information in the vicinity of the search point matches the map information, the candidate search point can be determined by a simple process.

  Further, according to the information display device 100 according to the present embodiment, when it is determined that there is a coincidence between at least one item and the map information among the plurality of itemized information in the vicinity of the search point, the determination is made. The matching points for each item may be scored to calculate the total score, and the priority of the candidate search points may be determined according to the calculated total score. Thereby, it can output in an order from the thing with high possibility corresponding to a candidate search point.

  Examples of the present invention will be described below. In the embodiment, an example in which the information display device 100 of the present invention is implemented by a navigation device mounted on a vehicle will be described.

(Hardware configuration of navigation device 300)
The hardware configuration of the navigation device 300 according to the embodiment will be described with reference to FIG. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device according to the embodiment. In FIG. 3, a navigation device 300 is mounted on a moving body such as a vehicle, and includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, and an audio. I / F (interface) 308, microphone 309, speaker 310, input device 311, video I / F 312, display 313, communication I / F 314, GPS unit 315, various sensors 316, and camera 317 And. Each component 301 to 317 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records various programs such as a boot program, a communication program, a route search program, and a destination search program. The RAM 303 is used as a work area for the CPU 301.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls the reading / writing of the data with respect to the optical disk 307 according to control of CPU301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, the removable recording medium may be an MO, a memory card, or the like.

  One example of information recorded on the magnetic disk 305 or the optical disk 307 is map information used for route search / route guidance. The map information includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road. The map information is displayed two-dimensionally or three-dimensionally on the display screen of the display 313. Portrayed. When the navigation device 300 is guiding a route, the map information and a vehicle mark indicating the current position of the vehicle acquired by the GPS unit 315 to be described later are displayed in an overlapping manner.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. Sound is output from the speaker 310.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, a mouse, and a touch panel.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 includes, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 313 is configured by a control IC or the like.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 is configured by, for example, an FM tuner.

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle. The output information of the GPS unit 315 is used when the current position of the vehicle is calculated by the CPU 301 together with output values of various sensors 316 described later. The information indicating the current location is information for specifying one point on the map information such as latitude / longitude and altitude.

  The various sensors 316 include a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, and the like, and output information that can determine the position and behavior of the vehicle. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the measurement of the change in speed and direction.

  The camera 317 captures images inside or outside the vehicle. The video may be either a still image or a moving image. In addition, the video imaged by the camera 317 is output to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312.

  The information display device 100 illustrated in FIG. 1 includes a reception unit 101, a reading unit 102, a search unit 103, an output unit 104, a determination unit 105, a determination unit 106, and a calculation unit 107. The ROM 302 in the navigation device 300 illustrated in FIG. The CPU 301 executes a predetermined program using programs and data recorded in the RAM 303, the magnetic disk 305, the optical disk 307, etc., and controls each part in the navigation device 300, thereby realizing its function.

  That is, the navigation device 300 according to the present embodiment executes functions of the information display device 100 shown in FIG. 1 by executing a destination search program recorded in the ROM 302 as a recording medium in the navigation device 300. The information display processing procedure shown in FIG.

(An example of navigation device information display processing)
Next, an example of information display processing performed by the navigation device 300 according to the embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating an example of the information display process of the navigation device according to the embodiment. In the present embodiment, the facility search process according to the present invention will be described as a destination search process. Specifically, in this embodiment, the clear location of the destination point restaurant X is unknown, and a process for searching for a destination point based on information in the vicinity of the restaurant X will be described.

  In the flowchart of FIG. 4, the navigation apparatus 300 waits for receiving the information on the destination point and the information on the vicinity of the destination point by the user's operation input (step S401: No loop), and the destination point information and the destination point. When the neighboring information is received (step S401: Yes), for example, the map information within 10 km from the current position is read from the map information recorded in advance (step S402). In this embodiment, the information on the destination point is information that the destination point is a restaurant, and the information near the destination point is information on roads and facilities in the vicinity of the restaurant X. Further, the read map information includes travel history information that the vehicle has traveled in the past. The destination information does not include latitude information and longitude information.

  Then, based on the information on the destination point and the map information, it is determined whether or not there is a restaurant within 10 km from the current position (step S403). In step S403, when it is determined that there is a restaurant within 10 km from the current position (step S403: Yes), a restaurant suitable as a candidate point for restaurant X is searched based on information in the vicinity of restaurant X and map information. (Step S404). In addition, the search process of the restaurant used as the candidate of the restaurant X is demonstrated in detail using FIG. 5 mentioned later.

  Then, as restaurants suitable for restaurant X, restaurants that are candidates in order of priority (in order appropriate) are added to the search result list (step S405), and the series of processing ends. On the other hand, when it is determined in step S403 that there is no restaurant within 10 km from the current position (step S403: No), the series of processes is terminated.

(Details of navigation device information display processing)
Next, the destination point search process performed by the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 5 is a flowchart illustrating the destination point search process of the navigation device according to the embodiment. FIG. 5 shows details of the processing after step S404 shown in FIG.

  In the flowchart of FIG. 5, the navigation device 300 waits for an instruction to start a search (step S501: No loop), and if it is determined that there is an instruction to start a search (step S501: Yes), The predetermined itemized information is acquired from the plurality of itemized information (step S502).

  In this embodiment, the itemized information includes position information based on an intersection, information on the number of lanes on an adjacent road, information on the type of an adjacent road, information on an adjacent facility, or Information about facilities existing in the designated direction is obtained, and information is acquired one by one from this information and searched. First, it is assumed that the information “near an intersection” has been acquired.

  Then, it is determined whether or not there is a coincidence between predetermined itemized information and map information (step S503). Specifically, for example, it is determined whether there is a restaurant near the intersection. This map information is the map information read in step S402 in FIG. 4 and within 10 km from the current position. In step S503, when it is determined that there is a match between the predetermined itemized information and the map information (step S503: Yes), the restaurant at the match is set as a candidate for restaurant X, and the corresponding restaurant Is extracted (step S504). That is, in this case, all restaurants that are within 10 km from the current position and that exist near the intersection are extracted.

  Then, it is determined whether the importance level information is attached to the predetermined itemized information (step S505). Importance information refers to location information based on intersections, information about the number of lanes on adjacent roads, information about types of adjacent roads, information about adjacent facilities, or information about facilities that exist in a specified direction Of these, it is information indicating which information is regarded as important, and details will be described later.

  If it is determined in step S505 that the importance information is attached (step S505: Yes), that is, if the importance information is attached to the information that exists near the intersection, the information is extracted in step S504. A high score corresponding to the importance is given to the restaurant (step S506). In addition, when importance information is not attached | subjected (step S505: No), 1 point is provided as a normal score with respect to the restaurant extracted at step S504 (step S507).

  Then, it is determined whether there is any other itemized information (step S508). On the other hand, also in step S503, when it is determined that there is no coincidence between the predetermined itemized information and the map information (step S503: No), the process proceeds to step S508. When there are five itemized information as in this embodiment, it is determined that there is other itemized information in step S508 (step S508: Yes), and the above-described steps S502 to S508 are performed. Repeat the process as appropriate.

  Specifically, for example, when information “adjacent to a two-lane road” is input as information regarding the number of lanes of adjacent roads as other itemized information, this information and map information Based on the above, a search is made for points to be scored. On the other hand, if it is determined in step S508 that there is no other itemized information by appropriately repeating the processing from step S501 to step S507 (step S508: No), the repeated steps S501 to S508 are performed. Terminate the process.

  If it is determined in step S508 that there is no other itemized information (step S508: No), it is determined whether there is a corresponding restaurant (step S509). In step S509, when it is determined that there is a corresponding restaurant (step S509: Yes), a total score is calculated for the score given to the extracted restaurant (step S510).

  And according to the total score, the priority of the restaurant which becomes a candidate is determined (step S511). And a candidate restaurant is added to a search result list in order of priority (Step S512), and a series of processings are ended. On the other hand, when it is determined in step S509 that there is no corresponding restaurant (step S509: No), the series of processing ends.

  Next, a specific search result of the destination point search process performed by the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 6 is an explanatory diagram illustrating an example of a destination point search result of the navigation device according to the embodiment.

  In FIG. 6, the search result 600 includes information 610 in the vicinity of the restaurant X, importance 620, and candidate destination point 630. Based on the information 610 and importance 620 in the vicinity of the restaurant X, the candidate purpose The point 630 is scored. Each item of the information 610 near the restaurant X includes “near intersection” 611, “adjacent to a two-lane road” 612, “adjacent to a national road” 613, “next to a convenience store” 614, “bank to the north” 615. Has been.

  And the importance 620 is described corresponding to each item. The importance 620 is shown in five levels from 1 to 5, for example, depending on the item, with importance 1 being the least important item and importance 5 being the most important item. The degree of importance 620 is divided into five stages, but it may be divided into two stages of importance or not, and may be divided into any number of stages.

  As for the provision of scores, based on each item and map information, for example, when there is a coincidence in “bank in the north” 615 that is an item of importance 1, a score is given to the corresponding store as a candidate destination point 630 1 point is awarded. Further, when there is a coincidence in “Near intersection” 611 which is an item of importance 5, 5 points are given to the corresponding store as the candidate destination point 630. In addition, although provision of the score was made into 1 point-5 points in steps according to the importance 1-5, it is not restricted to this.

  Next, a specific candidate destination point 630 will be described as an example. As a result of searching based on the information of the item of “Near Intersection” 611 with importance 5 and map information, A store 631 and B store If the store 632 matches the store 632, that is, if the store A 631 and the store B 632 are extracted as restaurants near the intersection, the score 5 corresponding to the importance 5 is given to the store A 631 and the store B 632. Points are awarded. The search for the item “near the intersection” 611 may be, for example, a search for restaurants within 100 m near the intersection. The distance may be calculated based on the latitude / longitude information.

  Furthermore, as a result of performing a search based on the information of the item “adjacent to the two-lane road” 612 and the map information, if the store A 631 and the store C 633 match, that is, it is adjacent to the two-lane road. When A store 631 and C store 633 are extracted as restaurants, 4 points corresponding to importance 4 are given to A store 631 and C store 633.

  The search for the item “adjacent to a two-lane road” 612, for example, first determines whether or not a candidate restaurant faces the road. If information on whether or not a candidate restaurant faces a road is recorded in advance as search data, the search data can be used, but if there is no search data, latitude / longitude information can be used. Based on the above, road information related to the shape of the road is acquired. With respect to the starting road, a perpendicular line is drawn from the candidate destination point, the distance of the perpendicular line is calculated based on the latitude and longitude information, and if the calculated distance is within a threshold (for example, within 100 m), it is determined as an adjacent road. Judgment can be made. When it is determined that there is an adjacent road, information on the number of lanes on the road is acquired.

  Further, as a result of searching based on the information of the item “adjacent to the national highway” 613 and the map information, when only the store A 631 matches, that is, the restaurant A 631 is extracted as a restaurant adjacent to the national highway. In this case, a score of 3 points corresponding to the importance 3 is given to the store A 631. Note that the search for the item “adjacent to the national road” 613 is similar to the search for the item “adjacent to the two-lane road” 612 described above, and whether or not the candidate restaurant faces the road first. Judging. When it is determined that there is an adjacent road, information regarding the type of the road is acquired.

  Similarly, the item “important next to the convenience store” 614 with the importance level 2 and the item “bank on the north side” 615 with the importance level 1 are similarly searched. Note that the search for the item “bank on the north side” 615 searches whether there is a bank on the north side within a certain range (for example, within 500 m). That is, such a search is performed by determining whether or not there is a restaurant on the south side with a bank at the center. The direction and distance are calculated based on the latitude and longitude information. For example, a restaurant with a low latitude is located on the south side when viewed from the bank (the bank is located on the north side when viewed from the destination). The

  By the search based on the information 610 near the restaurant X and the map information, the total score 640 is 15 points for the store A 631, 8 points for the store B 632, and 5 points for the store C 633. Since the priority 650 is assigned in the descending order of the total score 640, the A store 631 is the first priority, the B store 632 is the second priority, and the C store 633 is the third priority. In this way, the candidate destination point 630 of the restaurant X is output as a search result list in the order of the A store 631, the B store 632, and the C store 633 in the descending order of possibility.

  As described above, according to the navigation device 300 according to the present embodiment, based on the information about the feature of the destination point that is a restaurant, information about the restaurant X, and map information, Search for candidate restaurants. Therefore, the restaurant X can be searched even if the user does not know the name of the facility or road. As a result, if the user is taught how to go to the restaurant X, or if he / she has been to the restaurant X before, the user cannot clearly remember the location, etc. , Restaurant X can be searched. In the present embodiment, the case of searching for a destination has been described as an example, but such processing can also be applied to the case of searching for facilities on map information.

  Further, according to the navigation device 300 according to the present embodiment, since the map information within the range specified by the user is read, the search range can be limited without reading unnecessary map information, and the search speed can be reduced. Speedup and search accuracy can be improved. Furthermore, since the map information is read based on the travel history information that has traveled in the past, the search range can be limited by reading only the map information of places that are likely to correspond to the restaurant X. Speedup and search accuracy can be improved.

  Moreover, according to the navigation apparatus 300 concerning a present Example, the several itemized information of the restaurant X vicinity is received, It becomes a candidate based on the received several itemized information of the restaurant X vicinity, and map information. Narrow down restaurants. In this way, by itemizing the information in the vicinity of the restaurant X, it is possible to easily compare the information in the vicinity of the restaurant X with the map information, so that it is possible to narrow down candidate restaurants by simple processing. it can.

  Further, according to the navigation device 300 according to the present embodiment, it is determined for each of the plurality of items whether or not there is a match between the plurality of itemized information in the vicinity of the restaurant X and the map information. When it is determined that there is a matching point in at least one item of the plurality of itemized information and the map information, the matching point on the map information is determined as a candidate restaurant. As described above, the information in the vicinity of the restaurant X is itemized, and it is determined whether or not the information in the vicinity of the restaurant X matches the map information, so that a candidate restaurant can be determined by a simple process. it can.

  According to the navigation apparatus 300 according to the present embodiment, when it is determined that at least one item out of a plurality of itemized information in the vicinity of the restaurant X has a match point with the map information, a match is made for each determined item. Each point was scored to calculate the total score, and the priority of the candidate destination point was determined according to the calculated total score. Thereby, it can output in order from the thing with high possibility corresponding to the restaurant X.

  As described above, according to the information display device, the information display method, the information display program, and the storage medium of the present invention, the navigation device 300 is information about the feature at the search point that it is a restaurant and the restaurant X. A restaurant serving as a candidate for the restaurant X is searched based on the neighboring information and the map information. Therefore, the restaurant X can be searched even if the user does not know the name of the facility or road. As a result, if the user is taught how to go to the restaurant X, or if he / she has been to the restaurant X before, the user cannot clearly remember the location, etc. , Restaurant X can be searched.

  The information display method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. Further, this program may be a transmission medium that can be distributed via a network such as the Internet.

DESCRIPTION OF SYMBOLS 100 Information display apparatus 101 Reception part 102 Reading part 103 Search part 104 Output part 105 Discriminating part 106 Determination part 107 Calculation part

Claims (10)

A receiving means for receiving information about the feature of the search point to be searched and information in the vicinity of the search point input by the user;
Reading means for reading pre-stored map information;
Search means for searching for candidate search points that are candidates for search points based on information on the features of the search points received by the receiving means and information on the vicinity of the search points and map information read by the reading means; ,
Output means for outputting candidate search points searched by the search means;
An information display device comprising:   The information reading apparatus according to claim 1, wherein the reading unit reads map information within a range specified by a user. The accepting means accepts a plurality of itemized information in the vicinity of the search point,
The search unit narrows down candidate search points based on a plurality of itemized information in the vicinity of the search point received by the receiving unit and map information read by the reading unit. The information display device described. The search means includes
Discriminating means for discriminating whether each of the plurality of items has a matching point between the plurality of itemized information in the vicinity of the search point and the map information read by the reading means;
When it is determined by the determination means that there is a matching point in at least one item among the plurality of itemized information in the vicinity of the search point and the map information, the matching point on the map information is determined as a candidate search point. Determining means to determine as,
The information display device according to claim 1, further comprising: The search means, when it is determined by the determination means that there is a match between at least one item and the map information among a plurality of itemized information in the vicinity of the search point, a matching point for each determined item Is provided with a calculation means for calculating the total score,
5. The information display apparatus according to claim 4, wherein the determination unit determines the priority of the candidate search points according to the total score calculated by the calculation unit.   Information on the vicinity of the search point includes position information based on an intersection, information on the number of lanes on an adjacent road, information on the type of an adjacent road, information on an adjacent facility, or information on a facility existing in a specified direction The information display device according to claim 1, wherein the information display device includes at least one of the items.   The information reading apparatus according to claim 1, wherein the reading unit reads map information based on travel history information traveled in the past. A reception process for receiving information about the feature of the search point to be searched and information in the vicinity of the search point input by the user;
A reading process for reading map information stored in advance;
A search step for searching for candidate search points that are candidates for a search point based on information on the features of the search point received by the reception step and information on the vicinity of the search point and the map information read by the reading step; ,
An output step of outputting candidate search points searched by the search step;
An information display method comprising:   An information display program for causing a computer to execute the information display method according to claim 8.   A computer-readable recording medium on which the information display program according to claim 9 is recorded.

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