JP2011209263A - Navigation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suitably guide facilities that meet various requests of an occupant.SOLUTION: A navigation apparatus includes: receiving an input of a plurality of search conditions in accordance with a request of a user and storing the input search conditions in a storage medium; determining a particular intersection corresponding to the condition which the user wants on the basis of a map data; searching facilities which are located in a direction of the exit lane of intersect, for each exit lane of the particular intersection, and satisfy the search conditions stored in the storage medium; and displaying a destination guide representing respective facilities searched by a facility search means to be displayed on a display section, for each particular intersection.

Description

  The present invention relates to a navigation device that searches for a facility that satisfies a search condition according to a user's request and displays guidance for the searched facility.

  Conventionally, various navigation devices that search for a guidance route from a departure point to a destination and perform route guidance according to the guidance route have been proposed.

  As such a navigation device, the desired conditions of each desired facility such as a bank line, a gas station line, etc. are registered in advance, and a “simple destination” displayed on the display device while the vehicle is running is displayed. When the “Set” button and the “MY Bank” button are pressed, the bank facility of the affiliated group registered as the desired condition is searched corresponding to the “MY Bank” button, and searched as a transit point or destination. (See, for example, Patent Document 1, paragraphs “0019” to “0026”).

  Also, if it is determined that it is not possible to arrive at the first destination (for example, Happo-one ski resort) by the estimated arrival time based on traffic information, the same destination as the first destination and a ski resort Other destinations can be searched for other destinations that can perform the same purpose and arrive by the estimated arrival time (see, for example, Patent Document 2).

JP 2004-77180 A JP 2003-329457 A

  By the way, when driving to a certain area by car, various demands of drivers and passengers are generated on the way, such as breaks, meals, toilets, shopping, and refueling. Further, when traveling in a group with another vehicle, the demands of passengers from other vehicles are also involved.

  However, if each of these requirements is met, the burden on the driver increases and time is wasted.

  In the devices described in Patent Documents 1 and 2 described above, the destination is set and the guide route is searched. Therefore, as described above, when various requests of the passenger occur, While considering the facilities that can meet the various needs of the passengers, it is necessary to find a facility that can meet these various requirements and set it as the destination, which is not convenient.

  Further, even if a facility that can meet various demands of each occupant can be found by the operation of the occupant, it is not preferable that the facility is in a direction not desired by the occupant.

  The present invention has been made in view of the above problems, and an object of the present invention is to allow a facility that can meet various demands of passengers to be suitably guided.

  In order to achieve the above object, the invention according to claim 1 is a search condition storage means for enabling input of a plurality of search conditions according to a user's request and storing the input search conditions in a storage medium. , Specific intersection determining means for determining a specific intersection corresponding to a condition desired by the user based on the map data, and for each exit path of the specific intersection, the exit exists in the direction of the exit path and is stored in the storage medium. A facility search means for searching for facilities that satisfy the search conditions, a destination guidance display means for displaying on the display section a destination guidance display representing each facility searched by the facility search means for each exit path of the specific intersection, It is characterized by having.

  According to such a configuration, it is possible to accept input of a plurality of search conditions according to the user's request, and the input search conditions are stored in the storage medium, and the conditions desired by the user are obtained based on the map data. Decide the corresponding specific intersection, search for each facility that exists in the direction of the exit road that meets the search conditions stored in the storage medium for each exit path of the specific intersection, and for each exit path of the specific intersection Since the destination guidance display representing each facility searched by the facility search means is displayed on the display unit, it is possible to suitably guide the facility that can respond to various requests of the occupant.

  Further, in the invention according to claim 2, the search condition storage means displays an initial setting screen for inputting the search condition on the display unit, and accepts and inputs the input of the search condition by the user according to the initial setting screen. The search condition is stored in the storage medium as initial setting information, and the facility search means displays a display body for instructing the search on the display unit, and there is an operation on the display body for instructing the search by the user For each exit road of a specific intersection, a facility that exists in the direction of the exit road and that satisfies the search condition stored in the storage medium as the initial setting information is searched.

  According to such a configuration, if the user inputs search conditions according to the initial setting screen, the user only needs to perform an operation on the display body for instructing the search for each exit path of the specific intersection. Since each facility that exists in the direction and satisfies the search conditions stored in the storage medium as the initial setting information is searched, each searched facility is represented for each exit path of a specific intersection with a simple operation. A destination guidance display can be displayed on the display unit.

  In the invention according to claim 3, the search condition storage means displays a display body for instructing input of the search condition on the map display screen, and a display body for instructing input of the search condition by the user. In response to an operation for the input of the search condition, the input search condition is stored in a storage medium, the facility search means displays a display body for instructing the search on the map display screen, and the search by the user When there is an operation on the display body for instructing, a facility that exists in the direction of the exit route and that satisfies all of the search conditions stored in the storage medium is searched for each exit route of the specific intersection. It is characterized by that.

  According to such a configuration, since the display body for instructing the input of the search condition is displayed on the map display screen, the user instructs the input of the search condition even while the map display screen is being displayed. The search condition can be input by operating the display body. In addition, when a display body for instructing a search is displayed on the map display screen, and there is an operation on the display body for instructing a search by the user, for each exit path of a specific intersection, in the direction of the exit path Each facility that exists and satisfies all of the search conditions stored in the storage medium is searched, so it is easy to display a destination guidance display that represents each searched facility for each exit path of a specific intersection. Can be displayed.

  The invention according to claim 4 is an evaluation index calculation means for calculating an evaluation index based on a predetermined condition for each facility searched for each exit path of a specific intersection by the facility search means; Priority order assigning means for assigning priorities to each facility searched by the facility search means for each exit path of the specific intersection based on the evaluation index calculated by the means, and the destination guidance display means for the specific intersection For each exit route, a facility to be displayed on the display unit as a destination guidance display is determined based on the priority order given by the priority order assigning means, and the determined facility is displayed on the display unit.

  According to such a configuration, an evaluation index based on a predetermined condition is calculated for each facility searched for each exit path of the specific intersection by the facility search means, and the exit of the specific intersection is calculated based on the evaluation index. Priority is given to each facility searched by the facility search means for each road, and the facility to be displayed on the display unit as the destination guidance display is determined based on this priority, so the destination guidance according to various evaluation indexes It is possible to display.

  As in the invention described in claim 5, the evaluation index calculation means can calculate the evaluation index using the distance from the specific intersection as the evaluation index, and as in the invention described in claim 6, The evaluation index calculation means can also calculate the evaluation index using the time required from the specific intersection as an evaluation index.

  Further, as in the invention described in claim 7, the search condition storage means accepts a plurality of search conditions for each user in a hierarchical manner according to the importance of the user request, and each of the plurality of search conditions. The evaluation index calculation means searches for each exit path of the specific intersection by the facility search means using the hierarchy stored in the storage means in association with each of the plurality of search conditions. It is also possible to calculate a satisfaction index that is weighted according to the importance level of each user for each facility, and to calculate an evaluation index using the satisfaction index as an evaluation index.

  In the invention according to claim 8, the destination guidance display means determines the facility to be displayed on the display unit as the destination guidance display with the facility given the highest priority by the priority order giving means. .

  According to such a configuration, the facility with the highest priority is determined as the facility to be displayed as the destination guidance display for each exit route of the specific intersection, so the facility with the lower priority is hidden and specified. For each exit route at the intersection, the facility with the highest priority can be displayed.

  By the way, the facility given the highest priority is not necessarily the facility that meets the user's request. For example, there may be a facility that meets the user's request even if the distance from the specific intersection is somewhat far.

  However, in the invention according to claim 9, the facility priority order displayed on the display unit is changed according to the user operation, and the facility with the priority order changed according to the user operation is displayed as the destination guidance display. Since it is determined, it is possible to display a facility that meets the user's request as a destination guidance display.

  Further, as in the invention described in claim 10, the destination guidance display means displays the destination guidance including the evaluation index calculated by the evaluation index calculation means together with the name or genre of the facility searched by the facility search means. It is characterized by that.

  As described above, the destination guidance display including the evaluation index calculated by the evaluation index calculation means can be performed together with the name or genre of the found facility.

  Further, as in the invention described in claim 11, the destination guidance display means can also display the destination guidance so as to indicate the direction of each exit path of the specific intersection.

  Further, as in the invention described in claim 12, when the plurality of facilities are searched for one exit path, the destination guidance display means displays one facility selected by the user operation on the display unit. It is characterized by that.

  When a large number of facilities are searched for one exit route and all of the searched facilities are displayed, visibility is reduced, such as the need to reduce the size of characters or scroll operations. However, according to the above configuration, when a plurality of facilities are searched for one exit path, one facility selected by the user operation is displayed on the display unit. Visibility can be ensured.

  Further, according to the invention of claim 13, the specific intersection determination means presents a screen showing the intersection type classified according to the type of the road connected to the intersection, and designated by the user operation according to the screen. The specific intersection can be determined using the type of intersection as a condition desired by the user.

  The invention according to claim 14 is provided with current position specifying means for specifying the current position of the vehicle, and the specific intersection determining means is based on the current position of the vehicle specified by the current position specifying means and the map data. A specific intersection existing closest to the travel destination is determined, and the facility search means performs a facility search every time the specific intersection determined by the specific intersection determination means is changed.

  According to such a configuration, a specific intersection existing closest to the vehicle destination is determined based on the current position of the vehicle and map data, and a facility search is performed each time the determined specific intersection is changed. Therefore, it is possible to always display the destination guidance display on the display unit for the specific intersection that is closest to the travel destination of the vehicle.

  Further, as in the invention described in claim 15, the destination guidance display means hides the destination guidance display when all the facilities searched by the facility search means are included in the map screen displayed on the display unit. You can also

  The invention according to claim 16 includes communication means for wirelessly connecting to a communication network, and the facility search means is stored in a database provided in a server of an information center connected to the communication network via the communication means. It is characterized by accessing and conducting facility searches.

  As described above, the facility search may be performed by accessing the database provided in the server of the information center connected to the communication network.

  The invention according to claim 17 stores the situation in which the facility genre is selected and operated together with the facility genre that has been selected and operated when it is determined that the facility genre is selected and operated in a predetermined situation. A first storage processing means for storing the information in the medium, and the facility search means compares the situation stored in the storage medium by the first storage processing means with the current situation to determine whether or not they match. If the two match, the facility genre that has been selected and operated in the past under the situation that exists in the direction of the exit road and matches the current situation for each exit road of the specific intersection It is characterized by searching as.

  According to such a configuration, when it is determined that the facility genre is selected and operated under a predetermined situation, the situation that the facility genre is selected and operated is stored together with the selected facility genre in the storage medium. The facility retrieval means compares the situation stored in the storage medium with the current situation to determine whether or not they match, and if both match, further, for each exit path of a specific intersection Because the facility genre that has been selected and operated in the past under the situation that exists in the direction of the exit route and matches the current situation is searched as a search condition, the user does not bother to input the search condition. In addition, it is possible to display on the display unit a destination guidance display representing the same facility as the facility genre selected and operated in the past under a situation that matches the current situation.

  Further, the invention according to claim 18 is a process for storing, in a storage medium, the status of visiting the facility together with the facility genre of the facility visited when it is determined that the facility has been visited under a predetermined situation. A facility storage means for comparing the situation stored in the storage medium by the second storage processor and the current situation to determine whether or not they match, If the two match, further search for the facility genre of the facility that exists in the direction of the exit route and stops in the past under the situation that matches the current situation for each exit route of the specific intersection. It is characterized by that.

  According to such a configuration, when it is determined that the facility has visited the facility under a predetermined situation, the facility retrieval means stores the situation of the facility visited together with the facility genre of the facility that visited the facility. The situation stored in the storage medium is compared with the current situation to determine whether or not they match, and if both match, for each exit path of the specific intersection, the direction of the exit path And the facility genre of the facility that visited in the past in a situation that matches the current situation is searched as a search condition, so even if the user does not bother to input the search condition, It is possible to display on the display unit a destination guidance display that represents the same facility as the facility genre of the facility that visited in the past under matching conditions.

  Note that, when it is determined that the facility genre has been selected and operated under a predetermined situation, the facility genre is selected and operated together with the selected facility genre. Is stored in the storage means, and when it is determined that the facility has visited the facility under a predetermined situation, the facility search means stores the situation of the facility visited together with the facility genre of the facility that visited the facility. The situation stored in the storage medium is compared with the current situation to determine whether or not they match, and if both match, for each exit path of the specific intersection, the direction of the exit path The facility genre that has been stored in the storage medium by the storage processing means in the past under a situation that exists in the current situation and matches the current situation can also be retrieved as a search condition.

  Further, as in the invention described in claim 20, the situation information stored in the storage medium is classified into a plurality of items, and the facility search means includes the current situation information of the plurality of items. Of these items, when the number of items equal to or more than a predetermined reference number matches the situation information stored in the storage medium, it can be determined that both match.

It is a figure which shows the structure of the navigation apparatus which concerns on 1st Embodiment of this invention. It is a figure for demonstrating the database for multipurpose guidance functions. It is a flowchart of the initial setting process by a control part. (A)-(d) is a figure which shows the example of a display of an initial setting screen. It is a flowchart of the destination guidance display process by a control part. (A)-(d) is a figure which shows the example of a display of a multipurpose destination guidance starting screen. (A) is a display example of a multipurpose destination guidance start screen, (b), (c) is a figure which shows the example of a mediation screen display. It is a flowchart (continuation) of the destination guidance display process by a control part. It is a flowchart of the priority setting process by a control part. It is a flowchart of a facility genre storage process. It is a flowchart of the destination guidance display process which concerns on 3rd Embodiment.

(First embodiment)
FIG. 1 shows the configuration of the navigation device according to the first embodiment of the present invention. The navigation device 1 includes a position detection unit 10, an information storage unit 11, a display unit 12, a wireless communication unit 13, and a control unit 14.

  The position detection unit 10 includes a GPS receiver, a gyroscope, a vehicle speed sensor, a magnetic sensor, and the like (all not shown), and information for specifying the current position input from these is sent to the control unit 14. Output.

  The information storage unit 11 stores various information such as map data, program data, music data, and various databases. The map data includes road data representing road connections, facility data relating to various facilities, background data for map display, so-called map matching data for improving position detection accuracy, and the like. The information storage unit 11 in this embodiment is configured by a storage device such as a hard disk drive.

  The display unit 12 includes a display such as a liquid crystal, and displays a video corresponding to the video signal input from the control unit 14 on the display. The display unit 12 includes a touch switch provided over the display, a mechanical switch disposed around the display, and the like, and outputs a signal corresponding to the user's switch operation to the control unit 14.

  The wireless communication unit 13 is a device for wirelessly connecting to a communication network. The navigation device 1 can access various servers connected to the communication network via the wireless communication unit 13.

  The control unit 14 is configured as a computer including a CPU, a RAM, a ROM, an I / O, and the like, and the CPU performs various processes according to programs stored in the ROM and the information storage unit 11.

  As the processing of the control unit 14, the current position specifying process for specifying the current position of the vehicle based on the information for specifying the current position input from the position detection unit 10, the vehicle position on the map display screen around the vehicle A map display process for displaying the mark in an overlapping manner, a search process for performing various searches such as a 50-sound search, a facility search, a telephone number search, and an address search in accordance with a user operation, and an optimum guide route from the departure point to the destination There are route search processing for searching, route guidance processing for performing route guidance according to the guidance route, and the like.

  The navigation device 1 has a multipurpose guidance function for performing destination guidance display described later in response to a user operation. The database of the information storage unit 11 includes a database for multipurpose guidance functions used in this multipurpose guidance function.

  FIG. 2 shows an example of data in the multipurpose guidance function database. In this multipurpose guidance function database, information such as location information (coordinate information) and various service provision contents is stored in association with the facility name.

  For example, in the case of drive-in AA, the availability of meals and the contents of meals (udon, ramen, soba), the presence / absence of toilets and the type of toilets (Western / Japanese), the presence / absence of product sales, and the type of products ( Souvenirs (AB rice crackers), sweets, and clothing) are associated and stored in the information storage unit 11.

  In addition, in the case of Restaurant BB, along with location information, whether meals are allowed and the contents of meals (udon, ramen, soba, Western food, Japanese food), presence / absence of toilet and toilet type (Western / Japanese style), presence / absence of product sales, and products Are stored in the information storage unit 11 in association with each other.

  When the control unit 14 receives an input of a specific intersection condition desired by the user together with a plurality of search conditions according to the user's request, the control unit 14 performs an initial setting process for storing the input search condition and the specific intersection condition in a storage medium. For each exit path of a specific intersection, search for facilities that exist in the direction of the exit path and satisfy all the search conditions stored in the storage medium, and search for each exit path of the specific intersection. Destination guidance display processing for causing the display unit to display a destination guidance display representing each facility that has been performed is performed.

  FIG. 3 shows a flowchart of the initial setting process by the control unit 14. The navigation device 1 enters an operation state when the ignition switch of the vehicle is turned on according to a driver's operation, and the control unit 14 starts processing such as current position specifying processing and map display processing. When the start of the initial setting process is instructed by a user operation according to the menu screen, the control unit 14 performs the process shown in FIG.

  First, an initial setting screen is displayed on the display unit 12 (S100). FIG. 4A shows a display example of the initial setting screen. This initial setting screen includes an initial setting switch, priority setting switch (ON, OFF), destination guidance name display switch (genre name switch, facility name switch), destination guidance indicator display switch (distance, time), intersection setting switch, The completion switch is displayed as selectable.

  Next, it is determined whether or not the setting is completed based on whether or not the completion switch displayed on the initial setting screen has been selected by the user (S102).

  Until the completion switch is selected by the user, the determination in S102 is NO. Next, whether or not there is an instruction for initial setting based on whether or not the initial setting switch displayed on the initial setting screen has been selected. Is determined (S104).

  Here, when the initial setting switch shown in FIG. 4A is selected, a needs registration screen for registering a user request as shown in FIG. 4B is displayed (S106). This needs registration screen contains a list of Japanese syllabary, a conversion switch for Kanji conversion, a correction switch for correction, a needs registration switch for registering entered search conditions, and instructions for completing the needs registration screen. A completion switch is included. The user inputs search conditions according to the Japanese syllabary list. If kanji conversion is necessary, the conversion switch is selected to perform kanji conversion. If correction is required, the correction switch is selected to correct. Thus, a plurality of search conditions can be input. When the search conditions are input, the needs registration switch is selected to complete the needs registration.

  In S108, it is determined whether or not the needs registration screen is completed based on whether or not the completion switch is selected.

  Here, if the input of needs by the user is started without the completion switch being selected by the user, the determination in S108 is NO and the needs input is accepted (S110). Specifically, a keyword or the like input by a user operation is displayed in the input field.

  Next, it is determined whether or not the keyword input in the input field is to be registered based on whether or not the user registration switch has been selected (S112).

  Here, for example, when the user selects and operates the need registration switch after inputting “break” in the input field, a facility registration screen as shown in FIG. 4C is displayed (S114). On this facility registration screen, a genre list for keywords to be registered for needs, an up / down switch for selecting a genre list, and a registration completion switch for instructing registration completion are displayed. The user selects a registration completion switch after selecting a specific genre name or a specific facility name for a keyword to be registered for needs.

  Next, it is determined whether or not genre registration has been completed based on whether or not the registration completion switch has been selected.

  For example, “Michi-no-eki” is selected as a keyword for needs registration, and “Michi-no-eki” is registered for the keyword “break” when the registration completion switch is selected. Furthermore, when “drive-in” is selected and the registration completion switch is selected, “drive-in” is also registered for the keyword “rest”. In this way, as shown in FIG. 4C, “Road Station” and “Drive-in” are registered for the keyword “rest”. In this way, a plurality of search conditions corresponding to the user's request are stored in the information storage unit 11.

  When the user selects and operates the registration completion switch, the screen returns to the needs registration screen display shown in FIG. 4B, and when the user selects and operates the completion switch, the determination in S108 is YES, and FIG. The display returns to the initial setting screen display shown in (a).

  Next, it is determined whether priority setting, guidance name display setting, and guidance index display setting are completed (S118). According to the initial setting screen shown in FIG. 4A, the user performs various settings such as priority setting, destination guidance name display, and destination guidance index display, and then selects and operates the intersection setting switch.

  The priority setting is a setting for enabling (ON) or disabling (OFF) a change in the priority order of facilities to be displayed on the display unit described later. The destination guidance name display is a setting for displaying a genre name or a facility name. The destination guidance indicator display is a setting for whether the destination guidance indicator is a distance or a time.

  Here, when various settings such as priority setting, destination guidance name display, and destination guidance index display are performed by the user, it is next determined whether or not to perform intersection setting based on whether or not the intersection setting switch is selected and operated. Determine (S120).

  If the intersection setting switch is selected by the user, the determination in S120 is YES, and then an intersection setting screen as shown in FIG. 4D is displayed to prompt the user to select an intersection type ( S122). In accordance with this intersection setting screen, the condition of the intersection (specific intersection) where the destination display guidance is performed is selected. On this intersection setting screen, the classification of intersection types according to the type of road connected to the intersection is displayed. For example, various types of intersections are selectably displayed such as national road × national road, national road × prefectural road, national road × city road, prefectural road × prefectural road, prefectural road × city road, municipal road × city road. In the present embodiment, a plurality of intersection types can be selected. After the user selects an intersection type as a condition for a specific intersection, the user selects a registration switch displayed on the intersection setting screen.

  In S124, it is determined whether or not the registration of the intersection setting is completed based on whether or not the registration switch displayed on the intersection setting screen is selected by the user (S124).

  If the registration switch displayed on the intersection setting screen is selected and operated by the user, the determination in S124 is YES and the display returns to the initial setting screen shown in FIG. When the completion switch is selected, the determination in S102 is YES, and this process is terminated.

  As described above, the input of the search condition by the user is accepted according to the initial setting screen, and the input search condition is stored in the information storage unit 11 as the initial setting information.

  In FIG. 5, the flowchart of the destination guidance display process by the control part 14 is shown. When the start of the destination guidance display process is instructed by a user operation according to the menu screen, the control unit 14 performs the process shown in FIG.

  First, a multipurpose destination guidance start screen is displayed (S200). In this embodiment, on the map display screen as shown in FIG. 6A, a plurality of switches for instructing the start of multi-purpose destination guidance and priority for setting whether to enable or disable priority setting. The setting switch is displayed. As a switch for instructing start of multi-purpose destination guidance, an initial registration switch for instructing start of destination guidance display based on the search condition stored in the information storage unit 11 by the above-described initial setting process, and a new switch on the map screen are provided. There is an arbitration switch that inputs various search conditions and instructs the start of destination guidance display based on the search conditions.

  In S202, it is determined whether or not the initial registration switch has been selected by the user. In S204, it is determined whether or not the arbitration switch has been selected by the user.

  Here, if the initial registration switch is selected and operated by the user, the determination in S202 is YES, and then it is determined whether or not the traveling road type is a set road (S206). Here, the set road refers to a road type connected to the specific intersection selected in the initial setting process. Specifically, the road type on which the vehicle is traveling is identified with reference to the map data, and whether this road type matches the road type of the road connected to the specific intersection selected in the initial setting process. Determine whether or not.

  For example, if the road type connected to the specific intersection selected in the initial setting process is national road x national road, national road x prefectural road, prefectural road x prefectural road, and the vehicle is traveling on a municipal road, S206 The determination is no and the process returns to S200.

  Also, for example, when the road type connected to the specific intersection selected in the initial setting process is national road x national road, national road x prefectural road, prefectural road x prefectural road, and the vehicle is traveling on the prefectural road The determination in S206 is YES, and it is determined whether the next intersection is a specific intersection based on the map data and the current position of the vehicle (S208).

  Here, when the next intersection does not meet the condition of the specific intersection, the determination in S208 is NO, and the process returns to S200.

  For example, if the road type connected to the next intersection is a national road x a prefectural road, and the next intersection meets the condition of a specific intersection, the determination in S208 is YES, and then the intersection for the specific intersection The target facility along the road is searched (S210). Specifically, referring to the multipurpose guidance function database, for each exit path of a specific intersection, a facility that exists in the direction of the exit path and that satisfies all the search conditions stored in the information storage unit 11 is selected. Search for each.

  For example, “Michi no Eki” and “Drive-in” genres are registered for needs of “break” as needs registration, and “convenience store”, “mall” for needs of “meal” When each genre of “fast food” and “drive-in” is registered, a facility that satisfies the needs of “rest” and “meal” is searched for each exit path of a specific intersection.

  Next, an evaluation index value of each searched facility is calculated (S212). In this embodiment, it is possible to select a distance or time for the destination guidance indicator display switch displayed on the initial setting screen shown in FIG. 4A. When the distance switch is selected, a specific intersection is selected. The evaluation index value of each searched facility is calculated using the distance from the evaluation index value, and when the time switch is selected, the time required from the specific intersection is used as the evaluation index value for each searched facility. An evaluation index value is calculated. Here, it is assumed that the distance switch has been selected. Specifically, the evaluation index value of each facility is calculated using the distance between the specific intersection and each searched facility as the evaluation index value. The distance between a specific intersection and each searched facility is basically a road distance, but is calculated as a linear distance based on the coordinates of the specific intersection existing at the destination of the vehicle and the coordinates of each searched facility. You can also.

  Next, each facility is ranked in the order of index (S214). Specifically, priority is given to each searched facility so that the calculated evaluation index value is in ascending order, that is, in order of decreasing distance from the specific intersection.

  Next, the best facility of the index is displayed for each road starting from the specific intersection (S216). Specifically, for each exit route of a specific intersection, the facility having the smallest evaluation index value, that is, the facility having the shortest distance from the specific intersection is determined as a facility for displaying the destination guidance display, and each of these facilities is included. A destination guidance display is displayed on the display unit 12.

  FIG. 6B shows a display example of the destination guidance display. As shown in this figure, starting from a specific intersection existing ahead of the vehicle position mark, the facility with the best evaluation index value is highlighted one by one for each exit path of this specific intersection. The destination guidance display screen includes a multi-purpose guidance stop switch for instructing to cancel multi-purpose guidance, an up (UP) switch for raising the priority by one level, and a down (DOWN) for lowering the priority by one level. Switches and priority setting switches are also displayed.

  According to this destination guidance display, if you turn left, “Convenience Store” will be 3 km (3 km) ahead, if you go straight, “Fast Food” will be 10 km (10 km) ahead, and if you turn right, “Mall” will be 2 km (2 km). It can be recognized at a glance that it exists first. In addition, since the destination guidance display is displayed so as to indicate the direction of each exit path of the specific intersection, it is possible to recognize each facility when traveling to each direction more accurately.

  In S218, it is determined whether or not a down (DOWN) switch has been selected. Here, when the down (DOWN) switch is selected and operated by the user, the determination in S218 is YES, and next, a facility with one bad index is displayed for each road starting from the specific intersection (S220). Specifically, for each exit route of a specific intersection, the facility having the second smallest evaluation index value, that is, the facility having the second shortest distance from the specific intersection is determined as a facility for displaying the destination guidance display. A destination guidance display including each facility is displayed on the display unit 12.

  FIG. 6C shows a display example when the down (DOWN) switch is selected and operated by the user. As shown in this figure, the facility having the second shortest distance from the specific intersection is displayed as the destination guidance display.

  In S222, it is determined whether or not the up (UP) switch has been selected. Here, when the up (UP) switch is selected and operated by the user, the determination in S222 is YES, and next, a facility having one better index for each road starting from the specific intersection is displayed (S224). Specifically, the facility with the shortest distance from the specific intersection is displayed again as the destination guidance display for each exit path of the specific intersection. That is, the destination guidance display similar to the display example shown in FIG. 6B is displayed.

  Therefore, each facility displayed on the destination guidance display is changed according to the operation of the user's down (DOWN) switch or the user's operation of the up (UP) switch.

  In S226, it is determined whether or not the vehicle has passed the specific intersection based on the current position of the vehicle and the position information of the specific intersection with reference to the map data (S226).

  In S228, it is determined whether or not to stop the guidance based on whether or not the multipurpose guidance stop switch by the user has been selected.

  Therefore, when the vehicle passes the specific intersection, the determination in S226 is YES, and the process returns to S206, and the above-described processing is repeatedly performed on the new specific intersection existing at the travel destination.

  If the vehicle does not pass the specific intersection and the multipurpose guidance stop switch is not selected by the user, the determination in S226 is NO, the determination in S228 is also NO, and the process returns to S218.

  If the multipurpose guidance stop switch is selected and operated by the user before the vehicle passes the specific intersection, the determination in S228 is YES, the destination guidance display is stopped, and the process returns to S200.

  Returning to the description of FIG. 5, if the arbitration switch is selected and operated by the user while the multipurpose destination guidance start screen as shown in FIG. 7A is displayed, the determination in S208 is YES, and FIG. Next, an arbitration screen is displayed (S400). In the present embodiment, an arbitration screen as shown in FIG. 7B is displayed. The arbitration screen includes a Japanese syllabary list, a conversion switch, a correction switch, a needs registration switch, and a registration completion switch. The user operates each switch to input search conditions, and when the search conditions have been input, the user selects a needs registration switch to complete needs registration.

  Next, it is determined whether or not the registration completion switch has been selected (S402). If the registration completion switch has not been selected, the determination in S402 is NO and the process proceeds to S404.

  When a search condition is input by the user (S404) and the need registration switch is selected, the determination in S406 is YES, and the input search condition is registered as a user need (S408). Specifically, when the keyword “meal & udon” is input by the user and the needs registration switch is selected and operated, “meal & udon” input by the user is registered as the user needs.

  When the registration completion switch displayed on the arbitration screen as shown in FIG. 7B is selected and operated, the determination in S402 is YES, and the process proceeds to C in FIG. Thereafter, the processes of S206, S208, and S210 to S228 are performed.

  FIG. 7C shows a display example of the destination guidance display in this case. As shown in this figure, starting from a specific intersection existing ahead of the vehicle position mark, the facility with the best evaluation index value is highlighted one by one for each exit path of this specific intersection.

  Next, priority setting processing by the control unit 14 will be described with reference to FIG. When the priority setting is set to ON in the setting of the initial setting screen, the priority setting switch on the destination guidance display screen shown in FIG. 6B can be selected. When the priority setting switch is selected and operated by the user according to the display screen shown in FIG. 6B, the control unit 14 starts the priority setting process shown in FIG.

  First, a priority setting screen as shown in FIG. 6D is displayed (S300), and it is determined whether or not a specific genre is selected by the user according to the priority setting screen (S302).

  Here, if a specific genre is selected and operated by the user, next, the guidance target facility is fixed to the priority genre (S304). For example, on the display screen shown in FIG. 6B, even if the destination guidance display of the facility of the genre “meal” is displayed, the user follows the priority setting screen as shown in FIG. When “rest” is selected and operated, the facility of the genre “break” is searched for each exit route of the specific intersection, and the destination guidance display of the facility of the genre “break” is changed. In this case, the display screen is switched to that shown in FIG.

  Although not shown in FIG. 6C, in practice, a priority setting release switch is displayed on the display screen (S306), and then whether or not the priority setting release switch has been selected by the user is determined. judge.

  When the priority setting release switch is not selected by the user, the determination in S306 is NO and the process returns to S306. If the priority setting release switch is selected and operated by the user, the determination in S306 is YES, screen display before displaying the priority setting screen is performed (S310), and this process ends.

  With such priority setting, even if the user's request changes during traveling, it is possible to search for a facility that satisfies the user's request with a simple operation and display the destination guidance.

  According to the configuration described above, it is possible to accept input of a plurality of search conditions in response to a user's request, store the input search conditions in a storage medium, and satisfy the user's desired conditions based on map data For each exit path of the specific intersection, search for each facility that exists in the direction of the exit path and satisfies the search conditions stored in the storage medium, and for each exit path of the specific intersection, Since the destination guidance display showing each facility searched by the facility search means is displayed on the display unit, it is possible to suitably guide the facility that can respond to various requests of the occupant.

  In addition, if the user inputs the search condition according to the initial setting screen, the user exists in the direction of the exit path for each exit path of the specific intersection only by performing an operation on the display body for instructing the search, and Since the facilities satisfying all the search conditions stored in the storage medium as the initial setting information are searched, the destination guidance display showing each searched facility can be displayed for each exit route of the specific intersection with a simple operation. It can be displayed on the display unit.

  Further, since a display body for instructing the input of the search condition is displayed on the map display screen, the user can select a display body for instructing the input of the search condition even while the map display screen is being displayed. Search conditions can be entered by operating. In addition, when a display body for instructing a search is displayed on the map display screen, and there is an operation on the display body for instructing a search by the user, for each exit path of a specific intersection, in the direction of the exit path Each facility that exists and satisfies all the search conditions stored in the storage medium is searched, so it is easy to easily find destinations that represent each searched facility for each exit at a specific intersection. The display can be displayed on the display unit.

  In addition, an evaluation index based on a predetermined condition is calculated for each facility searched for each exit path of the specific intersection, and the facility search means is searched for each exit path of the specific intersection based on this evaluation index. Priorities are assigned to the facilities, and the facilities to be displayed on the display unit as the destination guidance display are determined based on the priorities, so that it is possible to perform destination guidance display according to various evaluation indexes.

  In addition, since the facility given the highest priority is determined as the facility to be displayed as the destination guidance display for each exit route of the specific intersection, the facility with the lower priority is hidden, and for each exit route of the specific intersection , The facility assigned the highest priority can be displayed.

  By the way, the facility given the highest priority is not necessarily the facility that meets the user's request. For example, there may be a facility that meets the user's request even if the distance from the specific intersection is somewhat far.

  However, the priority order of the facilities displayed on the display unit is changed according to the operation of the up (UP) switch or the down (DOWN) switch by the user, and the facility with the priority order changed according to the user operation is displayed as the destination guidance display. Since it is determined as a facility to be displayed, it is possible to display a facility that meets the user's request as a destination guidance display.

  In addition, a screen showing classified intersection types according to the type of road connected to the intersection is presented to the user, and a specific intersection is determined using the intersection type designated by the user operation according to the screen as a condition desired by the user. be able to.

  In addition, since the specific intersection that is closest to the destination of the vehicle is determined based on the current position of the vehicle and the map data, and the facility search is performed every time the determined specific intersection is changed, the vehicle is always The destination guidance display can be displayed on the display unit for the specific intersection existing closest to the destination.

(Second Embodiment)
In the first embodiment, the distance or time can be selected for the destination guidance indicator display switch displayed on the initial setting screen, and the distance from the specific intersection or the required time is determined as the evaluation indicator according to the selected switch. Although the evaluation index value of each searched facility is calculated as a value, in this embodiment, each of a plurality of search conditions for each user is hierarchized according to the importance of the user's request, and a plurality of searches Each condition is associated with a hierarchy and stored in the information storage unit 11, and for each facility searched for each exit path of a specific intersection by the facility search means using the hierarchy stored in the information storage unit 11, A user satisfaction score α weighted according to the importance of the user is calculated, and an evaluation index corresponding to the user satisfaction score α is calculated.

  Specifically, the user's request is divided into, for example, three levels, accepted as a first level item, a second level item, and a third level item in descending order of importance, and searched for each exit route of a specific intersection. A satisfaction score α is calculated for each facility. It should be noted that the user's essential requirements for the first layer item, the incidental conditions (desired requirements) that are less important than the first layer item for the second layer item, and the second layer item for the third layer item Also, incidental conditions (desired requirements) with low importance are entered. Here, assuming that the first hierarchical coefficient is a, the second hierarchical coefficient is b, the third hierarchical coefficient is c, the first hierarchical variable is T1, the second hierarchical variable is T2, and the third hierarchical variable is T3, the user 1 The satisfaction score α per person can be calculated by the following formula 1.

(Formula 1)
α = a × T1 + b × T2 + c × T3
However, the first hierarchy variable T1 is 1 when it matches the search condition input as the first hierarchy item, or it does not match the search condition input as the first hierarchy item, or the search condition is input to the first hierarchy item. If not, it will be 0.

  Similarly, the second hierarchy variable T2 is 1 when the search condition input as the second hierarchy item is matched, 1 is not matched with the search condition input as the second hierarchy item, or the search condition is set in the second hierarchy item. If it is not input, the value is 0, and the third hierarchy variable T3 is 1 when the search condition input as the third hierarchy item is matched, 1 is not matched with the search condition input as the third hierarchy item, or the third When no search condition is input in the hierarchy item, 0 is set.

  Here, the first hierarchy coefficient a = 10, the second hierarchy coefficient b = 5, and the third hierarchy coefficient c = 2, and “request” of “meal”, “udon”, “toilet”, “souvenir”, “senbei” It is assumed that a drive-in satisfying the above condition is found, and the distance between this drive-in and the specific intersection is 10 kilometers (10 km).

  In this case, when “meal” is input to the first hierarchy item by the user 1 and “udon” is input to the second hierarchy item, the satisfaction score α1 of the user 1 is α1 = 10 × 1 + 5 × 1 = 15

  In addition, when “toilet” is input to the first layer item and “3 kilometers (3 km)” is input to the second layer item by the user 2, the satisfaction score α2 of the user 2 is α2 = 10 × 1 + 5 X0 = 10.

  When the user 3 inputs “souvenir” in the first hierarchy item and “senbei” in the second hierarchy item, the satisfaction score α3 of the user 3 is α3 = 10 × 1 + 5 × 1 = 15. It becomes.

  Therefore, the sum of the user satisfaction scores can be calculated as α = α1 + α2 + α3 = 15 + 10 + 15 = 40.

  In this embodiment, the reciprocal of the total α of the user satisfaction scores is used as the evaluation index value. Therefore, the drive-in evaluation index value in this case is 1 / α = 1/40 = 0.025.

  Thus, the evaluation index value of each searched facility is calculated for each exit path of the specific intersection, and the priority order for each searched facility is calculated for each exit path of the specific intersection based on this evaluation index value. For each exit route of a specific intersection, a facility to be displayed on the display unit as a destination guidance display can be determined based on the assigned priority, and the determined facility can be displayed on the display unit.

  According to the configuration described above, each of the plurality of search conditions for each user is received in a hierarchy according to the importance of the user's request, and each of the plurality of search conditions is associated with the hierarchy and stored in the storage medium, The evaluation index calculation means uses the hierarchy stored in association with each of the plurality of search conditions in the storage means for each facility searched by the facility search means for each exit path of the specific intersection. It is also possible to calculate a satisfaction index that is weighted in accordance with and to calculate the satisfaction index as an evaluation index.

  In the present embodiment, the request is divided into three layers according to the importance of the user request, but is not limited to the three layers, and may be two layers or four or more layers.

(Third embodiment)
The configuration of the navigation device according to the third embodiment of the present invention is the same as that shown in FIG. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted and hereafter, it demonstrates centering on a different part. In the first embodiment, since the user directly inputs a plurality of search conditions, the search condition input operation is complicated. Therefore, in this embodiment, when it is determined that the facility genre is selected and operated under a predetermined situation, the information storage unit 11 indicates the situation where the facility genre is selected and operated together with the selected facility genre. When it is determined that the facility genre has been visited under a predetermined situation, the facility genre storage process is performed in which the information storage unit 11 stores the state of the facility genre together with the facility genre visited. To do. When the vehicle travels, for each exit path of a specific intersection, a facility genre that is present in the direction of the exit path and that has been selected and operated in the past under a situation that matches the current situation is searched and further specified. For each exit route at the intersection, the facility genre that is present in the direction of the exit route and that is stored in the information storage unit 11 in the past under a situation that matches the current situation is searched as a search condition. And the destination guidance display showing each searched facility for each exit route of the specific intersection is displayed on the display unit.

  FIG. 10 shows a flowchart of the facility genre storage process. When the ignition switch of the vehicle is turned on in accordance with the driver's operation, the operation state is set. When the navigation device 1 is set to the operation state, the control unit 14 is shown in FIG. 10 in parallel with the initial setting process shown in FIG. Start processing.

  First, it is determined whether or not there is a route setting (S500). Specifically, the destination, waypoint, etc. are determined according to the user's destination search instruction, and from the departure point according to the user's route search instruction. It is determined whether or not there is a route setting based on whether or not a guide route to the destination is being searched.

  Here, when the guidance route is searched, the determination in S500 is YES, and the facility genre set as the waypoint and the destination is stored in the information storage unit 11 together with the departure point, the waypoint, and the destination. (S502). Specifically, the facility and facility genre set as the waypoint and destination are stored in the information storage unit 11. For example, when “Kinkakuji” is selected and operated as the destination, the facility name “Kinkakuji” and the facility genre “tourist facility” are stored in the information storage unit 11, and the process proceeds to S504. When the guide route is not searched, the determination in S500 is NO, and the determination in S500 is repeatedly performed without performing S502.

  In S504, it is determined whether there is a stop-in facility. In the present embodiment, a series of traveling trajectories from when the vehicle departs from the home position registered in advance to return to the home is collected and stored in the information storage unit 11. The facility where the vehicle has stopped is identified based on the travel locus stored in the.

  Here, when the facility where the vehicle has stopped is not specified based on the travel locus, the determination in S504 is NO and the process returns to S500. Further, when the facility where the vehicle has stopped is identified based on the travel locus, the determination in S504 is YES, and then information on the stop-in facility is collected (S506). Specifically, it collects relevant information such as area information of this facility, time / time information, travel information, climate information, etc., along with the stop-off facility and facility genre of this facility.

  The area information includes the administrative area of the facility you visited (for example, the city), and the time / time information includes date information, arrival time at the facility you visited, and departure from the facility you visited. Departure time, stay time, continuous travel time to arrive at the facility where you visited, and elapsed time since leaving home. In addition, the travel information includes road types (for example, municipal roads, prefectural roads, national roads, and highways), average speed information, and traffic jam information (for example, traffic jam, congestion, and no congestion) related to the roads that enter and exit the facility that you have visited. The climate information includes outside temperature and weather (for example, sunny, cloudy, rain, snow).

  Next, each information collected in S506 is stored in the information storage unit 11, and the process returns to S500. The above-described processing is repeatedly performed until the vehicle returns to the home position, and the information storage unit 11 stores the time from leaving the home to returning to the home as one itinerary.

  The control unit 14 in the present embodiment performs the process shown in FIG. 11 in parallel with the destination guidance display process shown in FIG.

  In this process, first, in S206 of FIG. 11, it is determined whether or not the traveling road type of the running road is a set road, as in S206 of FIG. 5 (S206). Here, the set road refers to a road type connected to the specific intersection selected in the initial setting process. Specifically, the road type on which the vehicle is traveling is identified with reference to the map data, and whether this road type matches the road type of the road connected to the specific intersection selected in the initial setting process. Determine whether or not. For example, when the road type connected to the specific intersection selected in the initial setting process is national road × national road, national road × prefectural road, prefectural road × prefectural road, and the vehicle is traveling on a municipal road, FIG. The determination at S206 is NO, and the determination at S206 is repeated.

  Also, for example, when the road type connected to the specific intersection selected in the initial setting process is national road x national road, national road x prefectural road, prefectural road x prefectural road, and the vehicle is traveling on the prefectural road The determination in S206 is YES, and it is determined whether the next intersection is a specific intersection based on the map data and the current position of the vehicle (S208).

  Here, when the next intersection does not meet the condition of the specific intersection, the determination in S208 is NO and the process returns to S206.

  Also, for example, if the road type connected to the next intersection is a national road x a prefectural road, and the next intersection meets the conditions for a specific intersection, the determination in S208 is YES, and then the specific intersection is selected. The target facility along the target intersection road is searched (S210). Specifically, referring to the information stored in the information storage unit 11 by the facility genre storage process shown in FIG. 10, each exit path of a specific intersection exists in the direction of this exit path, and the current A facility genre that has been selected and operated in the past under a situation that matches the situation is searched.

  Here, in the past, Kinkakuji was selected and operated as a destination, and after running continuously for 2 hours and 30 minutes, the “Sushi Kurukuru / Kyoto store” with “Revolving sushi” in “Kyoto City” as the facility genre was selected. From 10:00 to 13:00, “Kinkakuji” is selected and operated as a “destination” in the information storage unit 11, the “area information” of this facility is “Kyoto City”, and the “arrival time” at this facility Is stored as one itinerary with "12 o'clock", "departure time" of this facility "13 o'clock" and "elapsed time since leaving home" "2 hours 30 minutes" And

  In the current itinerary, “Kiyomizu Temple” is selected and operated as “Destination”, the current position of the vehicle is “Kyoto City”, “Current time” is “12 o'clock”, It is assumed that “Elapsed time since” is “2 hours”.

  Here, the current situation and the situation in which the facility genre selection operation has been performed in the past are compared to determine whether there is a match, and if there is a match, for each exit path of the specific intersection In addition, the facility genre that is present in the direction of the exit route and that is stored in the information storage unit 11 in the past under a situation that matches the current situation is used as a search condition.

  In the present embodiment, it is determined whether or not the current situation matches the past situation by comparing the contents of the information for determining the match between the current situation and the past situation. Here, when two or more items match among the destination, area information, time, and continuous running time, it is determined that the current situation matches the past situation.

  Therefore, as in the above example, the “area information” is the same in “Kyoto City” in the current situation and the past situation, and “current time” is 12:00, If it is included in the time zone where the sushi is a facility genre, it is determined that the current situation matches the past situation.

  In this case, for each exit route of a specific intersection, the facility genre that is present in the direction of the exit route and has been selected and operated in the past under a situation that matches the current situation, that is, “rotary sushi” is the facility genre. Search is performed.

  Next, the facility searched in S210 is displayed (S217). Specifically, for each exit route of a specific intersection, the facility searched in S210 is displayed as a destination guidance display. Therefore, when a certain sushi restaurant is searched with “conveyor sushi” as the facility genre in S210, a destination guidance display with this sushi restaurant as the destination is displayed. In this way, the user performs a search for “conveyance sushi” as the facility genre based on the facility visited in the past without selecting “conveyance sushi” as the facility genre, and the retrieved facility is displayed on the destination guidance display. Displayed as the destination.

  Next, it is determined whether the vehicle has passed the specific intersection based on the current position of the vehicle and the position information of the specific intersection with reference to the map data (S226). Here, if the vehicle passes the specific intersection, the determination in S226 is YES, and the process returns to S206, and the above-described processing is repeatedly performed on the new specific intersection existing at the travel destination. Further, before the vehicle passes the specific intersection, it is determined whether or not to stop the guidance based on whether or not the multipurpose guidance stop switch by the user is selected (S228).

  If the multipurpose guidance stop switch is not selected by the user, the determination in S226 is NO, the determination in S228 is also NO, and the process returns to S217.

  If the multipurpose guidance stop switch is selected and operated by the user before the vehicle passes the specific intersection, the determination in S228 is YES, the destination guidance display is stopped, and the process returns to S206.

  As described above, it is possible to suitably guide the found facility by performing the facility search without requiring any user operation.

  In this embodiment, when two or more items match among the destination, area information, time, and continuous running time, it is determined that the current situation matches the past situation. When the above match, or when three or more items match, the current situation and the past situation may be determined to match when a predetermined reference number or more matches. Further, it may be determined whether or not the current situation matches the past situation by comparing the contents of the information for judging whether the current situation matches the past situation.

  In addition, in the determination of matching of items, complete matching can be used as a condition. However, if they are similar to some extent, they may be determined as matching. For example, in the “Destination” item stored in the past, “Kinkakuji” and the current destination “Kiyomizu-dera” are in the genre of “temple” (ie, similar), so they are not exactly the same. Therefore, it is determined as a match. On the other hand, “Kinkakuji” and “Osaka Prefectural Office” are not judged to match. In addition, for example, in the “stop time zone to the facility” item stored in the past, “12 o'clock to 13 o'clock” is different from the current time of 11:30, but is almost close (predetermined time, within 30 minutes) Therefore, it is determined as a match. On the other hand, it can be determined not to match at 10:00 or 14:00. Overall, it is possible to determine how many items the current and past situations match.

  In addition, before the destination guidance display function shown in the present embodiment is performed, a screen for confirming that the destination guidance display function is to be implemented is displayed to the user, and when the user's consent is obtained, the destination guidance is displayed. You may make it implement a display function.

  In the present embodiment, in S226, it is determined whether or not to cancel the guidance based on whether or not the multipurpose guidance cancellation switch has been selected by the user. However, whether the current situation matches the past situation is determined. You may make it determine whether guidance is canceled based on whether it is not materialized.

(Fourth embodiment)
In the third embodiment, when it is determined that the facility genre has been selected and operated under a predetermined situation, and when it is determined that the facility genre has been stopped under a predetermined situation, In the present embodiment, when it is determined that the facility genre has been selected and operated under a predetermined situation, the facility genre that has been selected and operated is stored. And the process which memorize | stores in the information storage part 11 the condition by which the said facility genre was selected and operated is implemented. When the vehicle travels, for each exit path of a specific intersection, the facility genre that is present in the direction of the exit path and that has been selected and operated in the past under a situation that matches the current situation is searched as a search condition. A destination guidance display representing each facility that has been exited at each specific intersection is displayed on the display unit.

(Fifth embodiment)
In the third embodiment, when it is determined that the facility genre has been selected and operated under a predetermined situation, and when it is determined that the facility genre has been stopped under a predetermined situation, The process of storing the genre and its status in the information storage unit 11 has been performed. In this embodiment, when it is determined that the facility genre has stopped under a predetermined situation, the facility and the facility genre visited A facility genre storage process is executed to store the status of the genre in the information storage unit 11. Then, when the vehicle travels, for each exit route of the specific intersection, the facility genre that is present in the direction of the exit route and stops in the past under a situation that matches the current situation is searched and searched. A destination guidance display showing each facility for each exit route of a specific intersection is displayed on the display unit.

(Other embodiments)
In the embodiment described above, the evaluation index value of each searched facility is calculated using the distance from the specific intersection as the evaluation index value. For example, the required time from the specific intersection is used as the evaluation index value for each searched facility. An evaluation index value may be calculated. In this case, the required time from the specific intersection can be calculated by dividing the distance from the specific intersection by the vehicle speed specified in advance.

  In the above embodiment, the searched facilities are displayed one by one for each exit path of the specific intersection. However, it is not always necessary to display the searched facilities one by one, and for each exit path of the specific intersection. A plurality of searched facilities may be displayed.

  Further, in the above embodiment, for each exit path of a specific intersection, a facility that exists in the direction of the exit path and satisfies all the search conditions stored in the storage medium is searched, but the facility is not necessarily stored in the storage medium. There is no need to search for facilities that satisfy all of the search conditions, and for each exit route of a specific intersection, a facility that exists in the direction of the exit route and that satisfies the search conditions stored in the storage medium is searched. You may do it.

  In the above embodiment, the searched facilities are displayed one by one for each exit path of the specific intersection. However, the destination guidance display may be performed only for the specific exit path selected by the user operation. Good.

  In the above embodiment, the searched facilities are displayed one by one for each exit path of the specific intersection. For example, all the searched facilities, that is, all the facilities to be displayed are already displayed on the map screen. If it is included, the destination guidance display may be hidden.

  Moreover, the display (for example, arrow) for showing the name or genre of the facility, the evaluation index, and the direction may be a 2D display or a 3D display. Further, it may be switched according to a user operation.

  Moreover, in the said embodiment, although the facility search was implemented with reference to the database for multipurpose guidance functions stored in the information storage part 11, it was equipped with the server of the information center connected to the communication network via the wireless communication part 13. You may make it search the facility by accessing the database.

  The correspondence relationship between the configuration of the above embodiment and the configuration of the claims will be described. S114, S116, and S408 correspond to search condition storage means, the information storage unit 11 corresponds to a storage medium, and S208 is specified. 6 corresponds to the intersection determination means, S210 corresponds to the facility search means, S216 corresponds to the destination guidance display means, S212 corresponds to the evaluation index calculation means, S214 corresponds to the priority order assignment means, FIG. ), (C), and the up (UP) switch and the down (DOWN) switch in FIG. 7 (c) correspond to priority changing means, and are based on the information for specifying the current position input from the position detector 10. The current position specifying process for specifying the current position of the vehicle corresponds to the current position specifying means, the wireless communication unit 13 corresponds to the communication means, and S500 and S502 are the first memories. Corresponds sense means, S504 to S508 corresponds to a second storage processing unit, S500～S508 corresponds to storage processing unit.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 10 Position detector 11 Information storage part 12 Display part 13 Wireless communication part 14 Control part

Claims (20)

Search condition storage means for enabling the input of a plurality of search conditions in response to a user's request and storing the input search conditions in a storage medium;
Specific intersection determining means for determining a specific intersection corresponding to a condition desired by the user based on map data;
For each exit road of the specific intersection, facility search means for searching for a facility that exists in the direction of the exit road and that satisfies the search condition stored in the storage medium;
A navigation apparatus comprising: a destination guidance display unit that displays a destination guidance display representing each facility searched by the facility search unit on a display unit for each exit path of the specific intersection. The search condition storage means displays an initial setting screen for inputting the search condition on the display unit, accepts an input of the search condition by a user, and uses the input search condition as initial setting information. Remember
The facility search means displays a display body for instructing the search on the display unit, and when there is an operation on the display body for instructing the search by a user, for each exit path of the specific intersection, The navigation apparatus according to claim 1, wherein the facilities that exist in the direction of the exit route and that satisfy the search condition stored in the storage medium as the initial setting information are respectively searched. The search condition storage means displays a display body for instructing input of the search condition on a map display screen, and the search condition according to an operation on the display body for instructing input of the search condition by a user. And receiving the input search condition in the storage medium,
The facility search means displays a display body for instructing the search on the map display screen, and when there is an operation on the display body for instructing the search by the user, for each exit path of the specific intersection The navigation apparatus according to claim 1, wherein the facilities that exist in the direction of the exit route and that satisfy the search condition stored in the storage medium are respectively searched. An evaluation index calculating means for calculating an evaluation index based on a predetermined condition for each facility searched for each exit path of the specific intersection by the facility searching means;
Priority order assigning means for assigning a priority order for each facility searched by the facility search means for each exit path of the specific intersection based on the evaluation index calculated by the index calculation means,
The destination guidance display means determines a facility to be displayed on the display unit as the destination guidance display based on the priority given by the priority order giving means for each exit route of the specific intersection, and the determined facility The navigation device according to any one of claims 1 to 3, wherein the display unit displays the message.   The navigation apparatus according to claim 4, wherein the evaluation index calculation unit calculates the evaluation index using a distance from the specific intersection as the evaluation index.   The navigation apparatus according to claim 4, wherein the evaluation index calculation unit calculates the evaluation index using a required time from the specific intersection as the evaluation index. The search condition storage unit receives each of the plurality of search conditions for each user in a hierarchy according to the importance of a user request, and associates each of the plurality of search conditions with a hierarchy in the storage medium. Remember,
The evaluation index calculation unit is configured to search for each facility searched for each exit path of the specific intersection by the facility search unit using the hierarchy stored in the storage unit in association with each of the plurality of search conditions. 5. The navigation apparatus according to claim 4, wherein a satisfaction index that is weighted according to the importance of each user is calculated, and the evaluation index is calculated using the satisfaction index as the evaluation index.   8. The destination guidance display means determines a facility to be displayed on the display unit as the destination guidance display with the facility given the highest priority by the priority order giving means. The navigation apparatus as described in any one. Priority order changing means for changing the priority order of facilities to be displayed on the display unit according to a user operation,
9. The navigation apparatus according to claim 8, wherein the destination guidance display unit determines a facility to display the facility with the priority changed by the priority order changing unit on the display unit as the destination guidance display. .   The destination guidance display means performs the destination guidance display including the evaluation index calculated by the evaluation index calculation means together with the name or genre of the facility searched by the facility search means. The navigation device according to any one of 4 to 9.   11. The navigation apparatus according to claim 10, wherein the destination guidance display means displays the destination guidance so as to indicate the direction of each exit path of the specific intersection.   The destination guidance display means displays, on the display unit, one facility selected by a user operation when a plurality of facilities are searched for one exit path by the facility search means. Item 12. The navigation device according to Item 10 or 11.   The specific intersection determination means presents to the user a screen showing the types of intersections classified according to the types of roads connected to the intersection, and the intersection type specified by the user operation according to the screen is determined by the conditions desired by the user The navigation device according to claim 1, wherein the specific intersection is determined as follows. A current position specifying means for specifying the current position of the vehicle;
The specific intersection determining means determines the specific intersection existing nearest to the destination of the vehicle based on the current position of the vehicle specified by the current position specifying means and the map data,
The navigation according to any one of claims 1 to 13, wherein the facility search means performs the facility search every time the specific intersection determined by the specific intersection determination means is changed. apparatus.   2. The destination guidance display means hides the destination guidance display when all the facilities searched by the facility search means are included in a map screen displayed on the display unit. 15. The navigation device according to any one of 14 to 14. A communication means for wirelessly connecting to a communication network;
16. The facility search unit according to claim 1, wherein the facility search unit performs a search for the facility by accessing a database provided in a server of an information center connected to the communication network via the communication unit. The navigation device according to any one of the above. When it is determined that the facility genre has been selected and operated under a predetermined situation, a first storage processing unit that stores in the storage medium the situation that the facility genre is selected and operated together with the facility genre that has been selected and operated With
The facility search means compares the situation stored in the storage medium by the first storage processing means with the current situation, determines whether or not they match, and if both match, The facility genre that has been selected and operated in the past under the situation that exists in the direction of the exit road and matches the current situation is searched for as a search condition for each exit road of the specific intersection. Item 17. The navigation device according to any one of Items 1 to 16. If it is determined that the facility has been visited under a predetermined condition, the storage medium includes a second storage processing means for performing a process of storing the state of the facility together with the facility genre of the facility that has visited.
The facility search means compares the situation stored in the storage medium by the second storage processing means with the current situation, determines whether or not they match, and if both match, In addition, for each exit route of the specific intersection, a facility genre of a facility that exists in the direction of the exit route and has visited in the past under a situation that matches the current situation is searched as a search condition. Item 17. The navigation device according to any one of Items 1 to 16. When it is determined that the facility genre is selected and operated under a predetermined condition, the storage unit stores the situation where the facility genre is selected and operated together with the selected and operated facility genre. When it is determined that the facility has stopped by a situation, the storage medium is provided with a storage processing means for performing processing for storing the state of the facility visited together with the facility genre of the facility visited by the storage medium.
The facility search means compares the situation stored in the storage medium by the storage processing means with the current situation to determine whether or not they match. For each exit path of the intersection, the facility genre that exists in the direction of the exit path and that has been stored in the storage medium by the storage processing unit in the past in a situation that matches the current situation is searched as a search condition. The navigation device according to any one of claims 1 to 16, wherein: The status information stored in the storage medium is classified into a plurality of items,
The facility search means matches when the current situation information matches the situation information stored in the storage medium in an item more than a predetermined reference number among the plurality of items. The navigation device according to any one of claims 17 to 19, wherein the navigation device is determined.

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