JP6350267B2 - Information guidance system, information guidance method, and computer program - Google Patents

Description

  The present invention relates to an information guidance system, an information guidance method, and a computer program for guiding information related to a facility located on a map.

  2. Description of the Related Art In recent years, a navigation device is often mounted on a vehicle that provides vehicle travel guidance so that a driver can easily arrive at a desired destination. Here, the navigation device detects the current position of the vehicle by a GPS receiver or the like, acquires map data corresponding to the current position through a recording medium such as a DVD-ROM or HDD or a network, and displays it on a liquid crystal monitor. It is a device that can do. Further, in such a navigation device, information on facilities in the vicinity of the current position of the own vehicle or facilities in a specific area (for example, around the destination) is also guided. In recent years, some mobile phones, smartphones, tablet terminals, personal computers, and the like have functions similar to those of the navigation device.

  Here, when guiding information related to the facility, the facility that matches the condition desired by the user is searched based on the current position information of the vehicle and the condition input by the user, and the facility that meets the condition is guided. It is common. Further, when guiding the searched facility to the user, the names of the searched facilities are displayed in a list form, as in Japanese Patent Application Laid-Open No. 2014-3203 and Japanese Patent No. 4723729, for example. This is done by displaying an icon or mark identifying the location of the facility on the map image. Moreover, when displaying the icon and mark which specify the position of the searched facility on a map image, displaying a map image with the reduced scale including all the searched facilities is performed.

Japanese Patent Laying-Open No. 2014-32013 (page 7, FIG. 6) Japanese Patent No. 4723729 (page 8, FIG. 6)

  Here, in the techniques described in Patent Document 1 and Patent Document 2, since the map image is displayed on a scale including all searched facilities, when the searched facilities are distributed in a very wide range, The scale of the displayed map image may be extremely small. For example, if the searched facilities exist in Hokkaido and Okinawa, respectively, the map image is to be displayed at a scale at which the entire Japan is displayed.

  However, there is generally a lower limit on the scale that can display an icon or mark for identifying the location of the searched facility (for example, a POI mark indicating the genre, brand, group, etc. of the facility) on the map image. In such a map image displayed at an extremely small scale, there is a problem that icons and marks indicating the location of the facility cannot be displayed. Even if an icon or mark is displayed, the scale of the map image is too small, so the location of the facility cannot be substantially identified from the position of the icon or mark (for example, only the prefecture where the facility is located is identified. There was a problem.

  The present invention has been made to solve the above-described problems, and displays an icon or mark for identifying the location of a facility on a map image even when the retrieved facility is distributed over a wide range. It is also possible to provide an information guidance system, an information guidance method, and a computer program that enable a user to appropriately specify the location of a facility from icons and marks displayed on a map image. To do.

  In order to achieve the above object, an information guidance system according to the present invention includes facility information acquisition means for acquiring facility information relating to a facility, facility search means for searching for a facility that satisfies a predetermined search condition based on the facility information, Facility guidance means for displaying the names of at least some of the target facilities, which are the facilities searched by the facility search means, in a list form on a display device, and the name of the target facility for the display device A map display means for displaying a map image together with a position information guide means for superimposing and displaying on the map image information for specifying the position of the guidance facility which is the target facility whose name is displayed on the display device. And the map display means is configured to display the guidance at a minimum display scale that is a minimum scale that can be displayed by superimposing information for specifying a position of the guide facility on the map image. When the map image of the area including the position of the map is displayed, the guide facility included in the map image to be displayed is specified as the specific guide facility, and the specific guide is displayed at a scale including the position of the specific guide facility. The map image of the area including the location of the facility is displayed.

  The information guidance method according to the present invention includes a step in which facility information acquisition means acquires facility information related to a facility, and a facility search means searches for a facility that meets a predetermined search condition based on the facility information. And a facility guide means displaying a list of names of at least some of the target facilities that are the facilities searched by the facility search means on a display device, and a map display means, A step of displaying a map image together with the name of the target facility on the display device, and information for specifying a position of the guide facility that is the target facility whose name is displayed on the display device And superimposing and displaying on the map image, the map display means can superimpose and display information specifying the location of the guidance facility on the map image When displaying the map image of the area including the position of the guidance facility at the minimum display scale which is a small scale, the guidance facility included in the map image to be displayed is identified as a specific guidance facility, and the identification The map image of the area including the position of the specific guidance facility is displayed on a scale including the position of the guidance facility.

  Further, the computer program according to the present invention includes a computer, a facility information acquisition unit that acquires facility information about a facility, a facility search unit that searches for a facility that satisfies a predetermined search condition based on the facility information, and the facility Of the target facilities which are the facilities searched by the search means, the facility guidance means for displaying the names of at least some of the facilities on the display device in a list form, and a map together with the names of the target facilities for the display device Map display means for displaying an image; and position information guidance means for superimposing and displaying on the map image information for specifying the position of the guidance facility which is the target facility whose name is displayed on the display device; The map display means superimposes information specifying the location of the guidance facility on the map image. When displaying the map image of the area including the position of the guidance facility at the minimum display scale that is the smallest possible scale, the guidance facility included in the map image to be displayed is identified as a specific guidance facility, The map image of the area including the position of the specific guidance facility is displayed on a scale including the position of the specific guidance facility.

  According to the information guidance system, the information guidance method, and the computer program according to the present invention having the above-described configuration, the scale of the map image displayed on the display device, the icons and marks for identifying the distribution of the found facilities and the locations of the facilities, etc. Is set to an appropriate value based on the lower limit of the scale that can be displayed on the map image, so even if the searched facilities are widely distributed, icons and marks that identify the location of the facilities Etc. can be displayed on the map image. In addition, even if the distribution of searched facilities is distributed over a wide range, the scale of the map image does not become too small, so the user can properly locate the facility from the icons and marks displayed on the map image. It becomes possible to specify.

It is the block diagram which showed the navigation apparatus which concerns on this embodiment. It is the figure which showed an example of facility data. It is a flowchart of the facility guidance processing program according to the present embodiment. It is the figure which showed the facility guidance screen displayed on a liquid crystal display in step. It is a figure explaining the specific method of specific guidance facility. It is the figure which showed the facility guidance screen displayed on a liquid crystal display in step 12. FIG. It is the figure which showed the facility guidance screen displayed on a liquid crystal display in step.

  Hereinafter, an information guidance system according to the present invention will be described in detail with reference to the drawings based on an embodiment in which the navigation system is embodied. First, a schematic configuration of the navigation device 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation device 1 according to this embodiment.

  As shown in FIG. 1, the navigation device 1 according to the present embodiment includes a current position detection unit 11 that detects a current position of a vehicle on which the navigation device 1 is mounted, a data recording unit 12 that records various data, A navigation ECU 13 that performs various arithmetic processes based on the input information, an operation unit 14 that receives operations from the user, a liquid crystal display 15 that displays guidance information about a map and facilities around the vehicle to the user, Communication is performed between a speaker 16 that outputs voice guidance related to route guidance, a DVD drive 17 that reads a DVD as a storage medium, and an information center such as a probe center or a VICS (registered trademark: Vehicle Information and Communication System) center. And a communication module 18.

Below, each component which comprises the navigation apparatus 1 is demonstrated in order.
The current position detection unit 11 includes a GPS 21, a vehicle speed sensor 22, a steering sensor 23, a gyro sensor 24, and the like, and can detect the current vehicle position, direction, vehicle traveling speed, current time, and the like. . Here, in particular, the vehicle speed sensor 22 is a sensor for detecting a moving distance and a vehicle speed of the vehicle, generates a pulse according to the rotation of the driving wheel of the vehicle, and outputs a pulse signal to the navigation ECU 13. And navigation ECU13 calculates the rotational speed and moving distance of a driving wheel by counting the generated pulse. Note that the navigation device 1 does not have to include all the four types of sensors, and the navigation device 1 may include only one or more types of sensors.

  The data recording unit 12 is also a hard disk (not shown) as an external storage device and a recording medium, and a driver for reading the map information DB 31 and a predetermined program recorded on the hard disk and writing predetermined data on the hard disk And a recording head (not shown). The data recording unit 12 may be configured by a memory card, an optical disk such as a CD or a DVD, instead of the hard disk. Further, the map information DB 31 may be stored in an external server, and the navigation device 1 may be configured to acquire by communication.

  Here, the map information DB 31 includes, for example, link data 33 relating to roads (links), node data 34 relating to node points, facility data 35 relating to facilities, map display data for displaying a map, intersection data relating to each intersection, and routes. It is a storage means in which search data for searching, search data for searching for points, and the like are stored.

  The link data 33 includes the width of the road to which the link belongs, the gradient, the cant, the bank, the road surface state, the number of lanes on the road, the number of lanes decreasing, The data representing the narrowing point, railroad crossing, etc., the corner, the radius of curvature, the intersection, the T-junction, the corner entrance and the exit, etc. The data representing the downhill road, the uphill road, etc. Regarding types, in addition to general roads such as national roads, prefectural roads and narrow streets, data representing toll roads such as highway automobile national roads, city expressways, automobile exclusive roads, general toll roads, and toll bridges are recorded.

  The node data 34 includes actual road branch points (including intersections, T-junctions, etc.) and the coordinates (positions) of node points set for each road according to the radius of curvature, etc. Node attribute indicating whether a node is a node corresponding to an intersection, etc., a connection link number list that is a list of link numbers of links connected to the node, and an adjacency that is a list of node numbers of nodes adjacent to the node via the link Data relating to the node number list, the height (altitude) of each node point, and the like are recorded.

Further, as the facility data 35, information related to a facility that is a departure place, a destination, a guidance target, and the like in the navigation device 1 is stored. For example, accommodation facilities such as hotels and inns, refueling facilities such as gas stations, commercial facilities such as shopping malls, supermarkets, shopping centers and convenience stores, entertainment facilities such as theme parks and game centers, restaurants and bars, and food and drinks such as taverns Information on facilities such as facilities, parking facilities such as public parking lots, transportation facilities, religious facilities such as temples and churches, public facilities such as museums and museums, and the like.
The facility data 35 includes, for each facility, a facility number that is an identifier of the facility, a facility name that indicates the name of the facility, and a facility genre that indicates the genre of the facility (such as “parking lot”, “post office”, and “restaurant”). It is composed of position coordinates indicating the position of the facility.

Here, FIG. 2 is a diagram showing an example of the facility data 35.
For example, in the example of the facility data 35 shown in FIG. 2, it is shown that “convenience store XX chain A branch (genre: convenience store)” corresponding to the facility number: “10001” exists at the point of coordinates (x1, y1). Show. Moreover, it is shown that “× ○ parking lot B town first (genre: parking lot)” corresponding to the facility number: “10002” exists at the point of coordinates (x2, y2). Similarly, information on other facilities is also stored.

  When the navigation device 1 performs the facility search process as described later, the navigation device 1 uses the facility data 35 to search for a facility corresponding to a search condition (for example, area, genre, name, etc.) designated by the user. Then, various information (name and position coordinates) regarding the facility corresponding to the search condition is extracted from the map information DB 31. Then, an icon or mark for specifying the location of the facility is displayed for the corresponding position of the map image displayed on the liquid crystal display 15, or a list of facility names, distances from the current location, required time, etc. is displayed in a list form. By displaying on the screen, information on the facility is guided to the user. In addition, when the user performs an operation to set the facility to which the user is guided as a destination or waypoint, a guidance route in which the facility is set as the destination or waypoint is set.

  The navigation ECU (Electronic Control Unit) 13 is an electronic control unit that controls the entire navigation device 1. The CPU 41 as an arithmetic device and a control device, and a working memory when the CPU 41 performs various arithmetic processes. Read out from the ROM 43 and the ROM 43 in which the RAM 42 storing the route data when the route is searched, the control program, the facility guidance processing program (FIG. 3) described later, etc. are recorded. An internal storage device such as a flash memory 44 for storing the program is provided. The navigation ECU 13 constitutes various means as processing algorithms. For example, facility information acquisition means acquires facility information related to a facility. The facility search means searches for a facility corresponding to a predetermined search condition based on the facility information. The facility guidance means displays the names of at least some of the target facilities that are the facilities searched by the facility search means on the liquid crystal display 15 in a list form. The map display means displays a map image together with the name of the target facility on the liquid crystal display 15. The position information guidance means superimposes and displays on the map image information identifying the position of the guidance facility that is the target facility whose name is displayed on the liquid crystal display 15.

  The operation unit 14 is operated when inputting a departure point as a travel start point and a destination as a travel end point, and includes a plurality of operation switches (not shown) such as various keys and buttons. Then, the navigation ECU 13 performs control to execute various corresponding operations based on switch signals output by pressing the switches. It is also used for inputting facility search conditions, scrolling the displayed list of facilities, and selecting facilities displayed after the search. The operation unit 14 can also be configured by a touch panel provided on the front surface of the liquid crystal display 15. Moreover, it can also be comprised with a microphone and a speech recognition apparatus.

  The liquid crystal display 15 includes a map image including a road, traffic information, operation guidance, operation menu, key guidance, guidance route from the departure point to the destination, guidance information along the guidance route, news, weather forecast, Time, mail, TV program, etc. are displayed. It is also used when displaying information about the found facility when the facility search is performed. In place of the liquid crystal display 15, HUD or HMD may be used.

  Further, the speaker 16 outputs voice guidance for guiding traveling along the planned traveling route and traffic information guidance based on an instruction from the navigation ECU 13.

  The DVD drive 17 is a drive that can read data recorded on a recording medium such as a DVD or a CD. Based on the read data, music and video are reproduced, the map information DB 31 is updated, and the like.

  The communication module 18 is a communication device for receiving traffic information composed of information such as traffic jam information, regulation information, and traffic accident information transmitted from a traffic information center, for example, a VICS center or a probe center. For example, a mobile phone or DCM is applicable.

  Next, a facility guidance processing program executed by the CPU 41 in the navigation device 1 having the above configuration will be described with reference to FIG. FIG. 3 is a flowchart of the facility guidance processing program according to this embodiment. Here, the facility guidance processing program is executed when a predetermined operation for searching for a facility is received in the navigation device 1, searches for a facility that meets a condition desired by the user, and guides based on the searched facility. It is a program that performs. Note that the program shown in the flowchart of FIG. 3 below is stored in the RAM 42 or ROM 43 provided in the navigation apparatus 1 and is executed by the CPU 41.

  First, in the facility guidance processing program, in step (hereinafter abbreviated as S) 1, the CPU 41 acquires facility search conditions designated by the user. Here, when searching for a facility, the user first inputs a search condition using the operation unit 14. As a search condition, the location, name, genre, etc. of the facility can be specified. For example, if “Kanto district” is designated as the facility location and “Airport” is designated as the genre, an airport in the Kanto district is searched.

  Next, in S <b> 2, the CPU 41 searches for facilities that meet the search condition acquired in S <b> 1 based on the facility data 35 stored in the data recording unit 12. For example, when “Kanto district” as the location of the facility and “Airport” as the genre are acquired as search conditions, the Kanto district is first determined based on the location coordinates of each facility stored in the facility data 35 (FIG. 2). The facilities in are extracted. Furthermore, only the facilities whose genre is “Airport” among the extracted facilities are further extracted. The finally extracted facility is a facility (hereinafter referred to as a target facility) that satisfies the search condition.

  Subsequently, in S3, the CPU 41 specifies a target facility (hereinafter referred to as a guidance facility) whose name is displayed in a list form on the liquid crystal display 15 among the target facilities searched in S2. Here, in the navigation apparatus 1 according to the present embodiment, the facility name and the facility position are particularly guided as the facility information corresponding to the search condition. Specifically, the names of the target facilities searched in S2 are displayed on the liquid crystal display 15 in a list form, and POI is also used as information for specifying the location of the facilities on the map image displayed on the liquid crystal display 15. Display the mark.

  When displaying the names of the target facilities in a list, the maximum number that can be displayed at one time (hereinafter referred to as the maximum display number) is set. The maximum number of displays can be set as appropriate depending on the size of the screen of the liquid crystal display 15, and is, for example, six. Therefore, in S3, for example, when the list display order is in the order of 50 notes, the CPU 41 compares the facility names of the target facilities searched in S2, and the facility with the maximum display number in order from the top in the order of 50 notes. Is identified as a guide facility. However, when the number of target facilities searched in S2 is smaller than the maximum display number (for example, one or two), all the target facilities searched in S2 are specified as guidance facilities.

  If the number of target facilities searched in S2 is larger than the maximum display number (for example, 6) that can be displayed on the liquid crystal display 15 at a time, only the guidance facility specified in S3 is initially displayed on the liquid crystal display. 15 is displayed in a list form. However, it is possible to switch the guidance facility to another target facility by scrolling the displayed list based on the user's operation (S8). Moreover, the display order of the list may be the order closer to the vehicle position than the name in the order of the Japanese syllabary, or may be the order closer to the destination or the guide route when the destination is set.

  On the other hand, the guidance of the location of the target facility is basically performed for all the guidance facilities whose names are displayed in a list form on the liquid crystal display 15, but the guidance facilities are distributed over a wide range as will be described later. If there is, only some information facilities are targeted. Details will be described later.

  Next, in S4, the CPU 41 displays the facility names of the guidance facilities specified in S3 on the liquid crystal display 15 in a list form.

  Subsequently, in S5, the CPU 41 specifies the maximum scale (hereinafter referred to as the display maximum scale) in which the positions of all the guidance facilities specified in S3 are included in the map image.

  Thereafter, in S6, the CPU 41 displays the minimum scale that can be displayed by superimposing the POI mark, which is the information for specifying the location of the guidance facility, on the map image (hereinafter referred to as the minimum display scale). It is determined whether or not it is larger. Here, the minimum display scale is set in advance at the time of shipment of the navigation device 1. In the present embodiment, in particular, a scale (for example, 1/256 million) that can display a 250 km square map image on the liquid crystal display 15. To do. The display minimum scale may be set to an arbitrary scale (for example, 1 / 1.28 million, 1 / 512,000, etc.) on the user side.

  If it is determined that the scale specified in S5 is the same as or larger than the minimum display scale (S6: YES), the process proceeds to S7. On the other hand, when it is determined that the scale specified in S5 is smaller than the minimum display scale (S6: NO), the process proceeds to S9.

  In S7, the CPU 41 also displays a map image on the same screen as the facility names displayed in a list form. Further, a POI mark is superimposed on a map image for each guidance facility and displayed as information for specifying the location of the guidance facility whose facility name is displayed on the liquid crystal display 15. The scale of the map image displayed on the liquid crystal display 15 is the scale specified in S5, that is, the maximum scale in which the positions of all the guidance facilities are included in the map image, and the positions of all the guidance facilities are included. Set the map image display area.

Here, FIG. 4 is a diagram showing the facility guidance screen 51 displayed on the liquid crystal display 15 in S7. FIG. 4 shows a facility guidance screen 51 displayed when “airport” in “Kanto district” is designated as a search condition.
As shown in FIG. 4, the facility guidance screen 51 includes two display areas: a left screen 52 that displays a map image, and a right screen 53 that displays the facility names of the searched facilities in a list form.
Here, the right screen 53 is provided with an information display space 54 for displaying the facility names of the guidance facilities in a list form. A scroll bar 55 is arranged next to the information display space 54. The user can operate the scroll bar 55 up and down to scroll the facility name displayed in the information display space 54 and switch to another name. When the facility name is selected by the user, detailed information on the guidance facility corresponding to the selected facility name (distance from own vehicle position, business hours, address, etc.) is displayed, or the guidance facility is displayed at the destination. Execute the process set to.
On the other hand, as described above, the map image 56 is displayed on the left screen 52 at a scale including the positions of all the guidance facilities. When the current position of the host vehicle is included, the host vehicle position mark 57 is also displayed superimposed on the map image 56.
Furthermore, POI marks 61 to 66 for specifying the position of the guidance facility whose name is displayed in the information display space 54 are superimposed on the map image 56 and displayed. Here, the POI marks 61 to 66 are marks indicating the genre, brand, group, etc. of the facility. For example, the POI mark at the airport is a mark imitating the shape of an airplane. In the example shown in FIG. 4, six information facilities “AB Airport”, “BC Airport”, “CD Airport”, “DE Airport”, “EF Airport”, and “FG Airport” are listed in the information display space 54. The POI marks 61 to 66 indicating the positions of these six guide facilities are displayed. As a result, the user can specify the position of each guidance facility whose name is displayed in the information display space 54 by referring to the position where the POI marks 61 to 66 are displayed on the map image. Furthermore, since the map image 56 is displayed at a scale as large as possible within the range including the POI marks 61 to 66, the position of the guidance facility can be grasped more accurately. Note that the scale of the map image 56 may be a scale smaller than the scale specified in S5 as long as the scale of the map facility includes the positions of all the guidance facilities and is larger than the minimum display scale. good. In addition, as long as the display range of the map image 56 includes the positions of all the guidance facilities in the displayed map image, the range can be changed as appropriate.

  Next, in S <b> 8, the CPU 41 determines whether an operation for scrolling the list of facility names displayed on the liquid crystal display 15 has been received. For example, in the state where the facility guidance screen 51 shown in FIG. 4 is displayed, when an operation for moving the scroll bar 55 up and down is accepted, an operation for scrolling the list of facility names displayed on the liquid crystal display 15 is accepted. judge.

  And when it determines with having received the operation which scrolls the list | wrist of the facility name displayed on the liquid crystal display 15 (S8: YES), it transfers to S3. Then, in accordance with the received scroll operation, the guidance facility whose name is displayed as a list on the liquid crystal display 15 is switched, and the processes after S3 are executed. On the other hand, when it is determined that the operation of scrolling the list of facility names displayed on the liquid crystal display 15 is not accepted (S8: NO), the facility guidance processing program is terminated.

  On the other hand, the processes of S9 and S10 are executed for all the guidance facilities specified in S3. Specifically, the guidance facilities are displayed in order from the top of the list, and after the processes of S9 and S10 are executed for all the guidance facilities, the process proceeds to S11.

  First, in S9, it is assumed that the CPU 41 displays a map image on the liquid crystal display 15 at the minimum display scale around the position of the guide facility whose name is displayed at the top of the list at the present time (hereinafter referred to as the top facility). In this case, it is determined whether or not the guidance facility to be processed is included in the map image. As shown in FIG. 5, when the names of facilities are displayed in a list in the vertical direction, the guidance facilities whose names are displayed in the upper direction are the guidance facilities whose names are displayed at the top of the list. Therefore, the top-level facility is a guide facility whose name is displayed in the uppermost information display space 54. When an operation for moving the scroll bar 55 up and down is accepted, the list of facility names displayed on the liquid crystal display 15 is scrolled, so that the top-level facility is changed accordingly. For example, when the facility guidance screen 51 shown in FIG. 5 is displayed on the liquid crystal display 15, “GH Airport” is the highest-level facility in the initial state, but after that, an operation of moving the scroll bar 55 downward has been accepted. In this case, the top-level facilities are switched in the order of “HI airport”, “IJ airport”, “JK airport”, “KL airport”, and “LM airport”.

  When the facility guidance screen 51 shown in FIG. 5 is displayed on the liquid crystal display 15, the top-level facility is “GH airport”, so the liquid crystal display is displayed at the minimum display scale centered on the position of “GH airport”. Assuming that the map image 56 is displayed on the map 15, each guide facility (“GH airport”, “HI airport”, “IJ airport”, “JK airport”, “KL airport”, “LM airport”)) is a map image. 56 is determined. Specifically, the CPU 41 first specifies the display range of the map image 56 when the map image 56 is displayed on the liquid crystal display 15 at the minimum display scale centered on the position of “GH airport”. The determination is made based on whether or not the position coordinates of “HI airport”, “IJ airport”, “JK airport”, “KL airport”, and “LM airport” are included in the specified display range. Note that “GH airport”, which is the highest-level facility, is always included, and may be excluded from the processing target of S9. As a result, in the example shown in FIG. 5, “GH airport”, which is the highest-level facility, and “HI airport”, “JK airport”, and “LM airport” which are relatively close to “GH airport” are map images 56. On the other hand, it is determined that “IJ Airport” and “KL Airport” that are far from “GH Airport” are not included in the map image 56.

  Then, when it is determined that the map image is displayed on the liquid crystal display 15 with the minimum display scale centering on the position of the highest-level facility, when it is determined that the guidance facility to be processed is included in the map image (S9: YES) In this case, the guidance facility to be processed is identified as the specific guidance facility (S10). Then, the CPU 41 stores the specified specific facility in a storage medium such as the flash memory 44.

  On the other hand, when it is assumed that the map image is displayed on the liquid crystal display 15 with the minimum display scale centered on the position of the top-level facility, when it is determined that the guide facility to be processed is not included in the map image (S9: YES) ), The process returns to S9 again without specifying the target guide facility as the specific guide facility. And the guidance facility used as a process target is changed and the process after S9 is performed again. Thereafter, after the processes of S9 and S10 are executed for all the guidance facilities, the process proceeds to S11.

  In S <b> 11, the CPU 41 reads out all the specific guidance facilities specified in S <b> 10 from the flash memory 44. Then, it is determined whether or not the specific guidance facility is only the top-level facility.

  If it is determined that the specific guidance facility is only the top-level facility (S11: YES), that is, if there is no other guidance facility around the top-level facility, the process proceeds to S12. On the other hand, if it is determined that the specific guidance facility is a plurality of guidance facilities including the top-level facility (S11: NO), that is, if another guidance facility exists around the top-level facility, the process proceeds to S13. And migrate.

  In S12, the CPU 41 also displays a map image on the same screen as the facility names displayed in a list form. Further, the POI mark is superimposed and displayed on the map image as information for specifying the position of the top-level facility which is the specific guide facility among the guide facilities whose facility names are displayed on the liquid crystal display 15. The scale of the map image displayed on the liquid crystal display 15 is the minimum display scale, that is, the minimum scale that can be displayed by superimposing the POI mark, which is information specifying the position of the guidance facility, on the map image, and the position of the top-level facility. The display area of the map image is set so that becomes the center of the map image.

Here, FIG. 6 is a diagram showing the facility guidance screen 51 displayed on the liquid crystal display 15 in S12. FIG. 6 shows a facility guidance screen 51 displayed when “airport” in “Tohoku area” is designated as a search condition.
In the example shown in FIG. 6, as described above, the position of the guidance facility other than the top-level facility (that is, the guidance facility far away from the top-level facility) is not considered, and the display minimum centered on the top-level facility is not considered. A map image 56 is displayed at a reduced scale. Further, since the scale of the map image 56 is set to the minimum display scale, the POI mark 61 can be displayed superimposed on the map image 56. Therefore, even when the guidance facilities are distributed over a wide range, the user can specify at least the position of the highest-level facility by the POI mark 61. Thereafter, the process proceeds to S8.

  On the other hand, in S13, the CPU 41 specifies the maximum scale at which the positions of all the specific guidance facilities specified in S10 are included in the map image.

  Thereafter, in S14, the CPU 41 also displays a map image on the same screen as the facility names displayed in a list form. In addition, among the guidance facilities whose facility names are displayed on the liquid crystal display 15, the POI mark is superimposed on the map image for each specific guidance facility and displayed as information for identifying the location of the specific guidance facility. The scale of the map image displayed on the liquid crystal display 15 is the scale specified in S13, that is, the maximum scale in which the positions of all the specific guidance facilities are included in the map image, and the position of the top-level facility is the map image. The display area of the map image is set so as to be at the center (that is, so as to include the positions of all the specific guidance facilities).

Here, FIG. 7 is a diagram showing the facility guidance screen 51 displayed on the liquid crystal display 15 in S13. FIG. 7 shows a facility guidance screen 51 displayed when “airport” in “Chubu district” is designated as a search condition.
In the example shown in FIG. 7, as described above, the map image 56 is displayed at a scale including the positions of all the specific guidance facilities. Further, the map image 56 centered on the top-level facility is displayed without considering the position of the guide facility other than the specific guide facility (that is, the guide facility far from the top-level facility). Therefore, the user is at least the POI about the location of the top-level facility and the guidance facilities in the vicinity of the top-level facility (in the example shown in FIG. 7, “GH airport”, “HI airport”, “JK airport”, “LM airport”). It can be specified by the marks 61, 62, 64, 66. Furthermore, since the map image 56 is displayed at a scale as large as possible within the range including the POI marks 61, 62, 64, 66, the position of the specific guidance facility can be grasped more accurately. Note that the scale of the map image 56 is smaller than the scale specified in S13 if the displayed map image includes the positions of all the specific guidance facilities and is larger than the minimum display scale. Also good. In addition, as long as the display range of the map image 56 includes the positions of all the specific guidance facilities in the displayed map image, it is not always necessary to center the top-level facility. Thereafter, the process proceeds to S8.

  As described in detail above, the navigation device 1 according to the present embodiment, the information guidance method by the navigation device 1 and the computer program executed by the navigation device 1 search for facilities that meet the search conditions specified by the user ( S2) The facility names are displayed in a list on the liquid crystal display 15 as guidance information related to the retrieved facilities (S4). On the other hand, a map image to be displayed when it is assumed that a map image is displayed at a minimum scale that can be displayed by superimposing a POI mark or the like specifying the position of a guidance facility, which is a facility whose facility name is displayed, on the map image The guidance facility included in the site is identified as the specific guidance facility (S10), the map image is displayed on a scale including all the identified specific guidance facilities, and the location of the guidance facility that is the target facility on which the facility name is displayed Since the POI mark or the like for specifying the image is superimposed on the map image and displayed (S12, S14), the scale of the map image displayed on the liquid crystal display 15 is changed to an icon or mark for specifying the distribution of the searched facility and the position of the facility. Can be set to an appropriate value based on the lower limit of the scale that can be displayed on the map image. Therefore, even if the searched facilities are distributed over a wide range, it is possible to display a POI mark or the like for specifying the position of the facility on the map image. In addition, even if the distribution of searched facilities is distributed over a wide range, the scale of the map image does not become too small, so the user can properly locate the facility from the icons and marks displayed on the map image. It becomes possible to specify.

Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.
For example, in the present embodiment, only the facility name is displayed in the information display space 54 of the facility guidance screen 51, but information other than the facility name may be displayed. For example, there are distance from the vehicle position, required time, genre, business hours, address, and the like.

  In this embodiment, the POI mark is superimposed on the map image as information for specifying the location of the guidance facility, but a mark other than the POI mark (for example, a rectangular or star mark), a character, a symbol, etc. May be displayed as information specifying the position of the guidance facility.

  In this embodiment, the maximum scale in which the positions of all the guidance facilities are included in the map image is specified as the display maximum scale (S5), but some (for example, 2/3 or 1/3) instead of all. The maximum scale including the position of the specific guidance facility may be set as the maximum display scale. Furthermore, when there are a plurality of specific guidance facilities, the map image is displayed at the maximum scale including the positions of all the specific guidance facilities (S14), but some (for example, 2/3 or 1 / It is good also as a structure which displays a map image by the maximum scale in which the position of 2) specific guidance facility is included.

  In addition to the navigation device, the present invention can be applied to a device having a map image display function. For example, the present invention can be applied to a mobile phone, a smartphone, a tablet terminal, a personal computer (hereinafter referred to as a mobile terminal). Further, the present invention can be applied to a system including a server and a mobile terminal. In that case, each step of the above-described facility guidance processing program (FIG. 4) may be configured to be implemented by either a server or a portable terminal.

  Moreover, although the embodiment which actualized the information guidance system according to the present invention has been described above, the information guidance system can also have the following configuration, and in that case, the following effects can be obtained.

For example, the first configuration is as follows.
A facility information acquisition means for acquiring facility information relating to a facility; a facility search means for searching for a facility that satisfies a predetermined search condition based on the facility information; and a target facility that is a facility searched by the facility search means A facility guidance means for displaying at least a part of facility names in a list form on the display device, a map display means for displaying a map image together with the names of the target facilities on the display device, and the display device. Position information guidance means for superimposing and displaying the information specifying the position of the guidance facility, which is the target facility whose name is displayed, on the map image, and the map display means includes the guidance facility The name that is displayed at the top of the list by the facility guidance means at the minimum display scale that is the minimum scale that can be displayed by superimposing the information specifying the position of the map image on the map image When displaying the map image of the area including the position of the top-level facility that is an internal facility, the guide facility included in the map image to be displayed is specified as a specific guide facility, and the position of the specific guide facility is The map image of an area including the position of the specific guidance facility is displayed at an included scale.
According to the information guidance system having the above configuration, the scale of the map image displayed on the display device can be displayed on the map image with icons, marks, and the like for specifying the distribution of searched facilities and the positions of the facilities. Set to an appropriate value based on the lower limit of the scale, so even if the searched facilities are distributed over a wide range, icons and marks that identify the location of the facilities can be displayed on the map image It becomes. In addition, even if the distribution of searched facilities is distributed over a wide range, the scale of the map image does not become too small, so the user can properly locate the facility from the icons and marks displayed on the map image. It becomes possible to specify.

The second configuration is as follows.
When the map display means displays the map image of the area including the position of the highest-level facility, which is the guidance facility whose name is displayed at the top of the list by the facility guidance unit, at the minimum display scale. The guide facility included in the map image to be displayed is specified as the specific guide facility.
According to the information guidance system having the above configuration, the locations of all the guidance facilities cannot be displayed on the map image by narrowing down the facilities whose positions are displayed on the map image to the facilities around the top-level facility. However, the location of the facility that is important for the user can be displayed.

The third configuration is as follows.
The map display means specifies, as the specific guidance facility, the guidance facility included in the map image to be displayed when the map image is displayed at the minimum display scale with the position of the top-level facility as the center. It is characterized by.
According to the information guidance system having the above-described configuration, it is possible to include the top-level facility that is important for the user and the guidance facilities located around the top-level facility in the guidance target. Therefore, more useful information can be guided to the user.

The fourth configuration is as follows.
The map display means displays the map image centered on the position of the top-level facility.
According to the information guidance system having the above-described configuration, it is possible for the user to clearly grasp the position of the highest-level facility that is important for the user. Further, even when the guidance facilities are dispersed over a wide range, at least the map image around the top-level facility and the position of the top-level facility can be targeted for guidance.

The fifth configuration is as follows.
The map display means displays the map image including the position of the top-level facility at the minimum display scale when the specific guidance facility is not other than the top-level facility.
According to the information guidance system having the above-described configuration, at least the map image around the top-level facility and the position of the top-level facility can be targeted for guidance even when the guidance facilities are dispersed over a wide range. It becomes possible.

The sixth configuration is as follows.
The map display means displays the map image at a maximum scale including the position of the specific guidance facility.
According to the information guidance system having the above configuration, the map image is displayed at a scale as large as possible within the range including the specific guidance facility, so that the position of the specific guidance facility can be grasped more accurately.

The seventh configuration is as follows.
Scale specifying means for specifying the maximum display scale that is the maximum scale of the map image including the position of the guidance facility; and determination means for determining whether or not the maximum display scale is smaller than the minimum display scale. And when the map display means determines that the maximum display scale is smaller than the minimum display scale, the map display means is a scale including the position of the specific guidance facility in an area including the position of the specific guidance facility. Displaying the map image, and displaying the map image of an area including the location of the guidance facility at the maximum display scale when it is determined that the maximum display scale is the same as or larger than the minimum display scale. It is characterized by.
According to the information guidance system having the above configuration, when a map image is displayed at a scale including the position of the guidance facility, an icon or mark for identifying the location of the facility cannot be displayed on the map image. By narrowing down the facilities whose positions are displayed on the image, it is possible to appropriately display icons, marks, and the like for specifying the positions of the facilities on the map image.

The eighth configuration is as follows.
It has a guidance switching means for switching the target facility whose name is displayed on the display device based on a user operation.
According to the information guidance system having the above configuration, even if there are many facilities that satisfy the search condition, it is possible to easily change the facility whose name and position are to be guided by the user's operation.

The ninth configuration is as follows.
It has a list order switching means for switching the order of the target facilities whose names are displayed on the display device based on a user operation.
According to the information guidance system having the above configuration, even when there are many facilities that satisfy the search condition, it is possible to easily switch the top-level facility that is preferentially guided by the user's operation.

1 Navigation device 13 Navigation ECU
15 Liquid crystal display 31 Map information DB
41 CPU
42 RAM
43 ROM
51 Facility Information Screen 54 Information Display Space 55 Scroll Bar 56 Map Image 61-66 POI Mark

Claims (11)

Facility information acquisition means for acquiring facility information about the facility;
Facility search means for searching for a facility corresponding to a predetermined search condition based on the facility information;
Facility guidance means for displaying the names of at least some of the target facilities, which are the facilities searched by the facility search means, in a list form on a display device;
Map display means for displaying a map image together with the name of the target facility on the display device;
Position information guidance means for superimposing and displaying on the map image information for specifying the position of the guidance facility which is the target facility whose name is displayed on the display device;
The map display means includes
When displaying the map image of the area including the position of the guidance facility at the minimum display scale that is the minimum scale that can be displayed by superimposing information identifying the position of the guidance facility on the map image, The guide facility included in the map image is specified as a specific guide facility,
An information guidance system for displaying the map image of an area including the position of the specific guidance facility on a scale including the position of the specific guidance facility.   When the map display means displays the map image of the area including the position of the highest-level facility, which is the guidance facility whose name is displayed at the top of the list by the facility guidance unit, at the minimum display scale. The information guidance system according to claim 1, wherein the guidance facility included in the map image to be displayed is identified as the specific guidance facility.   The map display means specifies the guide facility included in the map image to be displayed as the specific guide facility when the map image is displayed at the minimum display scale with the position of the top-level facility as the center. The information guidance system according to claim 2.   The information display system according to claim 2 or 3, wherein the map display means displays the map image centered on a position of the top-level facility.   The map display means displays the map image of an area including the position of the top-level facility at the minimum display scale when the specific guidance facility is not other than the top-level facility. The information guidance system according to any one of claims 2 to 4.   6. The information guidance system according to claim 1, wherein the map display unit displays the map image at a maximum scale including a position of the specific guidance facility. Scale specifying means for specifying a display maximum scale which is the maximum scale of the map image including the position of the guidance facility;
Determining means for determining whether the maximum display scale is smaller than the minimum display scale;
The map display means includes
When it is determined that the maximum display scale is smaller than the minimum display scale, the map image of the area including the position of the specific guidance facility is displayed at a scale including the position of the specific guidance facility;
The map image of an area including the position of the guidance facility is displayed at the maximum display scale when it is determined that the maximum display scale is the same as or larger than the minimum display scale. The information guidance system according to claim 6.   The information according to claim 1, further comprising: a guidance switching unit that switches the target facility whose name is displayed on the display device based on a user operation. Guidance system.   9. The information according to claim 1, further comprising: a list order switching unit that switches an order of the target facilities whose names are displayed on the display device based on a user operation. Guidance system. A facility information acquisition means for acquiring facility information about the facility;
A facility search means for searching for a facility that satisfies a predetermined search condition based on the facility information; and
The facility guidance means displaying the names of at least some of the target facilities that are the facilities searched by the facility search means in a list form on the display device;
A map display means displaying a map image together with the name of the target facility on the display device;
The position information guidance means includes a step of superimposing and displaying on the map image information identifying the position of the guidance facility that is the target facility whose name is displayed on the display device,
The map display means includes
When displaying the map image of the area including the position of the guidance facility at the minimum display scale that is the minimum scale that can be displayed by superimposing information identifying the position of the guidance facility on the map image, The guide facility included in the map image is specified as a specific guide facility,
An information guidance method for displaying the map image of an area including the position of the specific guidance facility on a scale including the position of the specific guidance facility. Computer
Facility information acquisition means for acquiring facility information about the facility;
Facility search means for searching for a facility corresponding to a predetermined search condition based on the facility information;
Facility guidance means for displaying the names of at least some of the target facilities, which are the facilities searched by the facility search means, in a list form on a display device;
Map display means for displaying a map image together with the name of the target facility on the display device;
Position information guidance means for superimposing and displaying on the map image information for specifying the position of the guidance facility which is the target facility whose name is displayed on the display device;
A computer program to make it function,
The map display means includes
When displaying the map image of the area including the position of the guidance facility at the minimum display scale that is the minimum scale that can be displayed by superimposing information identifying the position of the guidance facility on the map image, The guide facility included in the map image is specified as a specific guide facility,
A computer program for displaying the map image of an area including the position of the specific guidance facility on a scale including the position of the specific guidance facility.

Images