Navigation apparatus

Abstract

To set a destination so as to arrive at the destination without getting lost.SOLUTION: A navigation apparatus 250 includes a vehicle position information acquisition unit 251, an input unit 11 that receives an input of destination information and further receives an input of purpose information, a map information reference unit 252 that refers to map information including road map information and facility information including facilities and parking lots, a first setting unit 253 that temporarily sets a predetermined range including the destination as a first destination based on the destination information and the referred road map information, a second setting unit 254 that sets a specific position narrower than the range of the first destination as a second destination based on the purpose information and the referred facility information, a route setting unit 255 that sets a route based on the vehicle position information acquired by the position information acquisition unit 251 and the position information of the second destination, and an output unit 256 that outputs route guidance information based on the set route and the vehicle position information.SELECTED DRAWING: Figure 3A

Description

[Technical Field]

[0001] The present invention relates to a navigation device that provides route guidance. [Background technology]

[0002] As an example of this type of technology, Patent Document 1 (JP 2005-221285 A) discloses a car navigation device that displays a detailed image of the destination on a map, allowing the driver to find the destination without getting lost even if route guidance ends near the destination. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-221285 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the technology described in Patent Document 1 requires users to estimate their destination by comparing the image with the scenery around the destination, making it difficult for users who are not accustomed to driving. For example, in a parking lot attached to a large facility such as a large shopping mall, only an image of the parking lot is displayed, making it difficult for users to estimate which area of ​​the facility they should go to, and they may get lost. [Means for solving the problem]

[0005] A car navigation device according to one embodiment of the present invention includes a location information acquisition unit that acquires vehicle location information, an input unit that accepts input of destination information indicating the destination and further accepts input of destination information indicating an objective, a map information reference unit that references map information having road map information and facility information including facilities and parking lots, a first setting unit that provisionally sets a predetermined range including the destination as a first destination based on the destination information and the road map information referenced by the map information reference unit, a second setting unit that sets a specific position narrower than the range of the first destination as a second destination based on the destination information and the facility information referenced by the map information reference unit, a route setting unit that sets a route based on the vehicle location information acquired by the location information acquisition unit and the location information of the second destination, and an output unit that outputs route guidance information based on the set route and the vehicle location information. [Effects of the Invention]

[0006] According to the present invention, it is possible to set a destination so that the user can arrive at the destination without getting lost. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram showing an example of an IVI system including a navigation device. [Figure 2] FIG. 10 is a diagram illustrating an example of an operation menu screen. [Figure 3A] FIG. 1 is a block diagram illustrating the configuration of a main part of a navigation device. [Figure 3B] FIG. 2 is a block diagram illustrating the configuration of a main part of a terminal. [Figure 3C] FIG. 2 is a block diagram illustrating the main configuration of a vehicle sensor group and an in-vehicle camera. [Figure 3D] FIG. 2 is a block diagram illustrating the configuration of the main parts of an input device and an output device. [Figure 4] 10 is a flowchart illustrating the flow of control processing by a program. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. <Navigation Device Overview> The navigation device searches for an appropriate route from the current location to the destination and provides route guidance to the user along the route. That is, the navigation device includes a function for setting the destination, etc., a search function for searching for a route that meets search conditions such as whether or not toll roads are used, and a function for outputting guidance information along the searched route. The navigation device according to the embodiment is particularly characterized by the destination setting. Specifically, the destination for route guidance is set by a two-stage input operation. For example, the navigation device provisionally sets a predetermined range based on the first input operation from the user as a first destination, and presents the user with multiple candidate destinations that are pre-associated with facilities at the first destination. The candidate destinations are the reasons why the user travels to the destination, and examples of the presented candidate destinations include "eating meat," "buying shoes," "picking up someone," "seeing someone off," and "events." When the user selects one of the presented candidate destinations through a second input operation, the navigation device sets a specific location that matches the selected candidate destination as the second destination. For example, the specific location may be a "steak restaurant" for the purpose of "eating meat," a "shoe store" for the purpose of "buying shoes," an "arrival terminal" for "pick up," a "departure terminal" for "seeing off," or an "event space" for "event." In this way, the navigation device according to the embodiment sets the destination for route guidance taking into consideration the purpose of the user so that the user can arrive at the destination without getting lost.

[0009] In this embodiment, a navigation device is provided as one of the functions of an IVI (In-Vehicle Infotainment) system provided in a vehicle. Setting a destination in this navigation device will be described in more detail below.

[0010] <System configuration example> 1 is a schematic diagram showing an example of an IVI system including a navigation device. The IVI system includes a control device 20, a vehicle sensor group 12 of a vehicle 100 as a moving body, a display unit 51, a projection unit 52, and audio playback units 53A to 53D that constitute an output device 50 provided in the vehicle 100, operation detection units 11A and 11B and microphones 111A and 111B that constitute an input device 11 provided in the vehicle 100, a front seat camera 131 and a rear seat camera 132 that constitute an interior camera 13 provided in the vehicle 100, a terminal 2A used by a front seat occupant P1 in the vehicle cabin, and a terminal 2B used by a rear seat occupant P2 in the vehicle cabin.

[0011] The control device 20 and the terminals 2A and 2B are configured to be capable of wireless communication. The control device 20, the output device 50, the input device 11, the vehicle sensor group 12, and the in-vehicle camera 13 are configured to be capable of wired communication using a CAN (Controller Area Network) or the like. The vehicle 100 is equipped with an air conditioning unit 80 that adjusts the temperature and humidity inside the vehicle cabin, a light-admitting device 70 (which may be called a light-admitting sunroof) that can adjust the amount of light entering the vehicle cabin using light-admitting glass that covers almost the entire ceiling of the vehicle cabin, and an ambient light 60A for the front seats and an ambient light 60B for the rear seats that constitute the lighting device 60.

[0012] As an example, the terminals 2A and 2B are configured by smartphones used by the occupants P1 and P2, respectively. The terminals 2A and 2B may be held in holders (not shown) installed on the seats where the occupants P1 and P2 sit. Although two terminals 2A and 2B are shown as terminals used by occupants P1 and P2, the actual number of terminals varies depending on the number of occupants, and is four when there are four occupants. Furthermore, the number of cameras constituting the in-vehicle camera 13, the number of operation detection units and microphones constituting the input device 11, and the number of display units, projection units and audio playback units constituting the output device 50 may also be changed as appropriate depending on the number of occupants.

[0013] 2 is a diagram illustrating an example of an operation menu screen of the IVI system of FIG. 1. In this embodiment, the operation menu screen is projected or displayed on output device 50 (projection unit 52, display unit 51). When a menu button (which may also be called an icon) displayed on output device 50 is touched or when a voice corresponding to the menu button is input from microphones 111A and 111B that constitute input device 11, control device 20 starts operation of a function corresponding to the menu selected by the touch operation or voice input.

[0014] The operation menu screen illustrated in FIG. 2 includes menu buttons corresponding to a "conversation promotion" function that assists conversations between occupants of vehicle 100, an "acoustic healing" function that provides soothing relief to occupants through sounds played by audio playback units 53A-53D, an "air conditioning healing" function that provides soothing relief to occupants using air conditioning unit 80, a "route guidance" function that provides guidance on the driving route to the destination, a "following (audio)" function that connects the terminal of an occupant who has exited vehicle 100 with the communication unit (described later) of control device 20 to transmit external audio to occupants in the vehicle cabin, a "following (video)" function that connects the terminal of an occupant who has exited vehicle 100 with the communication unit (described later) of control device 20 to transmit external video to occupants in the vehicle cabin, a "vehicle information" function that sets functions of vehicle 100 and operates auxiliary equipment, a "media playback" function that plays media containing content from output device 50, and other functions (description omitted).

[0015] The following mainly describes the destination setting function of the control device 20 as a navigation device when the "route guidance" button on the operation menu screen is operated. Figures 3A to 3D are diagrams for explaining configuration examples of the various parts in Figure 1. <Navigation device> 3A is a block diagram illustrating the configuration of the main parts of the control device 20. The control device 20 includes an arithmetic processing unit such as an MPU (Micro Processing Unit) (not shown), and performs various information processing, control processing, and the like required by the control device 20 by reading and executing predetermined programs stored in a storage unit (not shown).

[0016] The control device 20 includes, as functional components for the navigation device 250, a location information acquisition unit 251, a map information reference unit 252, a first setting unit 253, a second setting unit 254, a route setting unit 255, an output control unit 256, and a communication unit 209, and controls the IVI system to function as the navigation device 250.

[0017] (Location information acquisition unit) The position information acquisition unit 251 acquires current position information of the vehicle 100 based on a signal from the positioning sensor 122 that constitutes the vehicle sensor group 12 .

[0018] (Map information reference section) The map information reference unit 252 references map information including road map information and facility information including facilities and parking lots. The map information reference unit 252 may reference map information stored in a storage unit of the control device 20, or may reference map information stored in an external content management server via a communication network (not shown).

[0019] (First setting section) The first setting unit 253 provisionally sets a predetermined range including the destination as the first destination based on the destination information input by the occupant P1 or P2 and the road map referenced by the map information reference unit 252 (included as road map information in the map information). The destination information is information indicating a destination, and may be the name of a region, a location (such as a town name and a lot number), or a facility name. In the embodiment, the destination information is input as an audio signal from microphones 111A and 111B constituting input device 11, for example. The first setting unit 253 accepts the destination input operation by voice from the occupants P1 and P2 using techniques such as voice recognition and natural language processing based on the input voice signal.

[0020] When the first setting unit 253 recognizes a destination such as "XX Hill," "XX Town △ Chome," "XX Shopping Mall," or "XX Airport," it provisionally sets a predetermined range including multiple facilities near the recognized destination as the first destination, such as "near XX Hill," "near XX Town △ Chome," "near XX Shopping Mall," or "near XX Airport," based on the road map referenced above. The reason it is called a provisional setting is that it narrows down the destinations using the purpose information input by the occupant P1 or P2 next.

[0021] (Second setting section) The second setting unit 254 sets a specific location narrower than the range of the first destination as the second destination based on the destination information input by the occupant P1 or P2 and the facility information (contained in the map information) referenced by the map information reference unit 252. The purpose information indicates the purpose of the occupant P1 or P2's travel in the vehicle 100, and may be, for example, "eat meat," "buy shoes," "pick up someone," "see someone off," or "attend an event," as exemplified above. When the first destination is provisionally set by the first setting unit 253, the second setting unit 254 presents, on a display unit (projection unit 52, display unit 51) constituting the output device 50, a plurality of potential purposes pre-associated with each of a plurality of facilities (recorded in the facility information) present at the first destination. For example, if there are a plurality of facilities (the above-exemplified "steak restaurant," "shoe store," "arrival terminal," "departure terminal," and "event space") in the "near XX airport" as the first destination, the second setting unit 254 presents the potential purposes pre-associated with each facility. In the embodiment, the potential purposes corresponding to the exemplified "steak restaurant," "shoe store," "arrival terminal," "departure terminal," and "event space" are, respectively, "eat meat," "buy shoes," "pick up someone," "see someone off," and "attend an event." In other words, when occupant P1 or P2 inputs the destination "XX Airport," the first setting unit 253 provisionally sets "near XX Airport" as the first destination, and the second setting unit 254 presents potential purposes (here, "eat meat," "buy shoes," "pick up," "see off," and "event") associated with multiple facilities located near the first destination to occupant P1 or P2 via the display unit (projection unit 52, display unit 51) serving as output device 50.

[0022] As an example, the second setting unit 254 inputs, as destination information, a signal selecting one of a plurality of destination candidates from the operation detection units 11A and 11B constituting the input device 11, and sets a specific location that matches the input destination information as a second destination. In the above example, the second destination is set as follows: the location of a "steak restaurant" for the destination information "to eat meat," the location of a "shoe store" for the destination information "to buy shoes," the location of an "arrival terminal" for the destination information "to pick up someone," the location of a "departure terminal" for the destination information "to see someone off," and the location of an "event space" for the destination information "to hold an event."

[0023] When presenting multiple candidate destinations pre-associated with each facility to occupant P1 or P2 via output device 50, second setting unit 254 may present a candidate destination list on output device 50 as image information, in which the candidate destinations are listed in accordance with a predetermined priority order for each facility. When determining the priority order, the second setting unit 254 may determine the order based on likelihood. For example, if the first destination is "near XX station," the order is determined so that "meeting," "seeing someone off," and "picking someone up" are ranked higher than "eating XX," "buying XX," and "events" as potential purposes. In addition, the second setting unit 254 may determine the priority of the above multiple candidate destinations using a weight value based on at least one of the number of times selected by occupant P1 or P2 in the past, the day of the week selected by occupant P1 or P2 in the past, and the time period selected by occupant P1 or P2 in the past.

[0024] (Route setting section) The route setting unit 255 searches for and sets an appropriate route based on the current location information of the vehicle 100 acquired by the location information acquisition unit 251, the location information of the second destination set by the second setting unit 254, search conditions separately set by the occupant P1 or P2 (for example, whether to travel on a toll road, whether to travel mainly on a main road, etc.), and map information. In addition, the route setting unit 255 performs route search as appropriate while the vehicle 100 is traveling, for example, searching for a detour route in response to new information such as traffic congestion information, or searching for a new traveling route if the current position of the vehicle 100 deviates from the traveling route being guided.

[0025] (Output control section) The output control unit 256 outputs route guidance information based on the route set by the route setting unit 255 to the output device 50. As a result, a map screen showing the driving route is displayed or projected via the display unit 51 and the projection unit 52, and audio guidance is reproduced from the audio reproduction units 53A to 53D.

[0026] (Communications Department) The communication unit 209 includes a short-range wireless communication module (not shown) that performs wireless communication with the terminals 2A and 2B, and a wired communication module (not shown) that performs wired communication using a CAN or the like. The short-range wireless communication module may employ a wireless communication method that has a direction detection function.

[0027] <terminal> 3B is a block diagram illustrating an example of the configuration of the main parts of terminal 2A. The configuration of terminal 2B is also similar to that of terminal 2A, and is therefore not shown. Terminal 2A includes an arithmetic processing unit such as an MPU (not shown), and performs various information processing, control processing, and the like required for the functional configuration described below by reading and executing a predetermined program (which may also be called an application) stored in a storage unit (not shown). Terminal 2A includes, as functional components, a personal information storage unit 21, a related information storage unit 22, a content storage unit 23, a biometric sensor group 24, and a communication unit 25. Generally, a smartphone is equipped with a display unit, an input unit, an audio playback unit, a camera, a position detection unit, etc., but illustrations and descriptions of these will be omitted. The terminal 2A may share functions with other devices such as a smart watch (not shown).

[0028] (Personal information storage unit) The personal information storage unit 21 stores the personal information of the occupant P1 who carries the terminal 2A. When the IVI system functions as the navigation device 250, the personal information is not required.

[0029] (Relationship information storage unit) The relationship information storage unit 22 stores relationship level information of the occupant P1 who uses the terminal 2A. When relationship level information indicating the degree of intimacy between the occupants P1 and P2 in the vehicle cabin is transmitted from the control device 20, the relationship information storage unit 22 stores the information. When the IVI system functions as the navigation device 250, the relationship level information is not required.

[0030] (Content storage unit) The content storage unit 23 stores content collected by the occupant P1 who owns the terminal 2A, or information necessary for playing the content (for example, cloud storage for storing the content, URL of a server for streaming the content, etc.). For example, sound content that the occupant P1 wants to listen to when he or she is tired may be stored in advance in the content storage unit 23. The sound content includes voice content and music content.

[0031] (Biosensor group) The biometric sensor group 24 includes, for example, a heart rate sensor that acquires the heart rate of the occupant P1 carrying the terminal 2A, a respiration sensor that acquires the respiration rate, a blood flow velocity sensor that acquires the blood flow velocity, and an electrical skin resistance sensor that acquires the electrical skin resistance value (all of which are not shown). When the IVI system functions as the navigation device 250, the biometric information of the occupant P1 collected by the biometric sensor group 24 is not needed.

[0032] (Communications Department) The communication unit 25 includes a short-range wireless communication module (not shown) that performs wireless communication with the control device 20, and a wired communication module (not shown) that performs wired communication using a CAN or the like.

[0033] FIG. 3C is a block diagram illustrating the configuration of the main parts of the vehicle sensor group 12 and the interior camera 13 of the vehicle 100. As shown in FIG. <Vehicle sensors> The vehicle sensor group 12 includes a vehicle speed sensor 121, a positioning sensor 122, and a camera 123. Generally, the vehicle 100 is equipped with sensors such as an acceleration sensor and radar, but these will not be shown or described here.

[0034] (vehicle speed sensor) The vehicle speed sensor 121 detects the speed of the vehicle 100 and outputs vehicle speed information to the control device 20. When the IVI system functions as the navigation device 250, the vehicle speed information can be used to calculate the estimated time of arrival at the destination.

[0035] (positioning sensor) The positioning sensor 122 detects the current position of the vehicle 100 based on positioning signals from GPS (Global Positioning System) satellites, quasi-zenith satellites, etc. The positioning sensor 122 outputs a signal indicating the current position as position information to the control device 20. When the IVI system functions as a navigation device 250, the information on the current position can be used to calculate the estimated time of arrival at the destination.

[0036] (camera) The camera 123 captures images of the surroundings of the vehicle 100. The camera 123 outputs data of the subject image as image information to the control device 20. The camera 123 can capture both still images and moving images. When the IVI system functions as the navigation device 250, image information of the surroundings of the vehicle 100 is not required.

[0037] <In-vehicle camera> The vehicle interior camera 13 includes a front seat camera 131 and a rear seat camera 132. The front seat camera 131 captures an image of the upper body of an occupant P1 sitting in the front seat, and outputs the subject image data as image information to the control device 20. The rear seat camera 132 captures an image of the upper body of an occupant P2 sitting in the rear seat, and outputs the subject image data as image information to the control device 20.

[0038] FIG. 3D is a block diagram illustrating the configuration of the main parts of the input device 11 and the output device 50 of the control device 20 of the vehicle 100. As shown in FIG. <Input device> The input device 11 includes operation detection units 11A and 11B and microphones 111A and 111B. (Operation detection unit) The operation detection unit 11A is operated by a front seat passenger P1 and outputs an operation signal to the control device 20. The operation detection unit 11A may be configured as a pointing device that works in conjunction with a projected image projected by a projection unit 52, which will be described later. The operation detection unit 11B is provided on the display surface of the display unit 51. The operation detection unit 11B is operated by a rear seat passenger P2 and outputs an operation signal indicating a touch position to the control device 20.

[0039] (microphone) The microphone 111A collects the voice uttered by the front seat passenger P1 and outputs an audio signal to the control device 20. The microphone 111B collects the voice uttered by the rear seat passenger P2 and outputs an audio signal to the control device 20.

[0040] <Output device> The output device 50 includes a display unit 51, a projection unit 52, and an audio playback unit 53. The output device 50 is used, for example, to display the operation menu screen of Fig. 2, to present a list of destination candidates when setting a destination on the navigation device 250, to output route guidance information on the navigation device 250, to play content, and the like. The destination candidate list is presented as image information by the second setting unit 254 described above. The route guidance information is guidance information based on the route set by the route setting unit 255 described above, and is output from the output control unit 256 described above. The content to be played may be acquired via the communication unit 209 from terminals 2A and 2B carried by multiple occupants P1 and P2 in the vehicle cabin. The content may be acquired not only from the terminals 2A and 2B, but also from an external content management server via a communication network (not shown). The content management server includes a cloud storage that stores the content and a streaming server that plays the content. The content to be played is searched for and acquired by the control device 20 via the communication unit 209. The content to be played back may be video content (moving images, still images, text display, icon display, graphic display, etc.) or audio content.

[0041] (Display) The display unit 51 has a screen such as a liquid crystal display, and displays image information based on a display signal output from the control device 20. The image information includes the operation menu screen of Fig. 2, the destination candidate list presented by the second setting unit 254, a map screen of route guidance information, images of video content, etc.

[0042] (projection section) The projection unit 52 is configured by a head-up display (HUD) that is projected onto the windshield, for example, and projects image information based on a projection signal output from the control device 20. The image information includes the operation menu screen of Fig. 2, the destination candidate list presented by the second setting unit 254, a map screen of route guidance information, images of video content, etc.

[0043] (Audio playback section) The audio playback units 53A to 53D are configured as speakers that play back and output audio and the like, and play back audio guidance of route guidance information, audio content, and the like based on a playback signal output from the control device 20. Note that an audio output unit that outputs a content playback signal to headphones (not shown) or the like may also be provided.

[0044] <Explanation of the flowchart> Fig. 4 is a flowchart illustrating an example of control processing by a program executed by the MPU of the control device 20. When the "Route Guidance" button is operated on the operation menu screen of Fig. 2, the MPU of the control device 20 executes a program that performs the processing shown in Fig. 4 to make the IVI system function as the navigation device 250. While the program is being executed, the control device 20 functions as a control unit of the navigation device 250.

[0045] In step S1 of FIG. 4, the control device 20 receives destination information input by the occupant P1 or P2 via the input device 11, and then proceeds to step S2.

[0046] In step S2, the control device 20 causes the first setting unit 253 to provisionally set the first destination, and then proceeds to step S3.

[0047] In step S3, the control device 20 causes the second setting unit 254 to output (or may also say present) destination candidates via the output device 50, and then proceeds to step S4.

[0048] In step S4, the control device 20 receives a selection signal input from the occupant P1 or P2 via the input device 11, and proceeds to step S5.

[0049] In step S5, the control device 20 sets a second destination by the second setting unit 254, and proceeds to step S6.

[0050] In step S6, the control device 20 sets a route using the route setting unit 255, and then the process proceeds to step S7.

[0051] In step S7, the control device 20 outputs the route guidance information through the output control section 256, and then proceeds to step S8.

[0052] In step S8, the control device 20 determines whether or not to end the control processing. If a predetermined ending operation has been performed, the control device 20 makes an affirmative decision in step S8 and proceeds to step S9, whereas if no ending operation has been performed, the control device 20 makes a negative decision in step S8 and returns to step S7. If returning to step S7, the control device 20 repeats the above-described processing. That is, it continues to output route guidance information.

[0053] In step S9, the control device 20 performs an end process to end the process shown in Fig. 4. The end process includes the output control unit 256 ending the output of route guidance information and the route setting unit 255 ending the route search.

[0054] According to the embodiment described above, the following advantageous effects are achieved. (1) The navigation device 250 of the vehicle 100 includes a location information acquisition unit 251 that acquires location information of the vehicle 100, an input device 11 as an input unit that accepts input of destination information indicating the destination and further accepts input of destination information indicating the purpose, a map information reference unit 252 that references map information having road map information and facility information including facilities and parking lots, a first setting unit 253 that provisionally sets a predetermined range including the destination as a first destination based on the destination information and the road map information referenced by the map information reference unit 252, a second setting unit 254 that sets a specific position narrower than the range of the first destination as a second destination based on the destination information and the facility information referenced by the map information reference unit 252, a route setting unit 255 that sets a route based on the location information of the vehicle 100 acquired by the location information acquisition unit 251 and the location information of the second destination, and an output control unit 256 as an output unit that outputs route guidance information based on the set route and the location information of the vehicle 100. This configuration makes it possible to set a destination so that the user will arrive without getting lost. For example, even for a destination such as a parking lot attached to a large facility, it is possible to set a second destination that is narrower than the "near the parking lot" provided by conventional technology. As a result, route guidance information is provided even after the vehicle 100 reaches the "near the parking lot" until the second destination is reached. The user can concentrate on driving and arrive at the second destination without getting lost within the facility.

[0055] (2) In the navigation device 250 of (1) above, when the first setting unit 253 tentatively sets a first destination, the second setting unit 254 outputs to the output control unit 256 a plurality of destination candidates that are pre-associated with facilities present at the first destination, the input device 11 inputs a signal to select one of the plurality of destination candidates as destination information, and the second setting unit 254 sets a specific location that matches the selected destination candidate as the second destination. With this configuration, the user can easily select destination information from destination candidates related to multiple facilities that exist at the first destination that has been provisionally set based on the destination information that the user has input. The second setting unit 254 can set a location (specific location) that is convenient for accessing a facility that meets the user's purpose as the second destination.

[0056] (3) In the navigation device 250 described in (2) above, the second setting unit 254 outputs a plurality of destination candidates associated in advance with each facility to the output control unit 256 in accordance with a predetermined priority order for each facility. This configuration makes it possible to present to the user potential destinations related to multiple facilities located at the first destination in order of, for example, the likelihood that the destinations will meet the user's purpose, which is more user-friendly than when the potential destinations are presented randomly.

[0057] (4) In the navigation device 250 described above in (3), the priority of multiple destination candidates is determined by a weight value based on at least one of the number of times selected in the past, the day of the week selected in the past, and the time period selected in the past. This configuration makes it possible to present to the user candidate destinations related to multiple facilities at the first destination in order of the probability that they will meet the user's purpose. In other words, by increasing the weight of candidate destinations previously selected by the user, it becomes possible to present candidate destinations in an order that reflects the user's past selections. This makes it easier for the user to use than when candidate destinations are presented randomly.

[0058] The above embodiment can be modified in various ways, and modifications will be described below. (Variation 1) In the above-described embodiment, an example has been described in which four people including the driver are in the vehicle cabin, but the number of occupants is not limited to four, and may be one or more people.

[0059] (Variation 2) In the above-described embodiment and modification 1, the vehicle 100 is exemplified as a moving body, but a vehicle of a different type from the vehicle 100 may be used as long as it is a moving body.

[0060] The above description is merely an example, and the present invention is not limited to the above-described embodiment and modifications as long as the features of the present invention are not impaired. One or more of the above-described embodiment and modifications can be arbitrarily combined, and modifications can also be combined with each other. [Explanation of symbols]

[0061] 2A, 2B terminal, 11 input device, 11A, 11B operation detection unit, 12 vehicle sensor group, 13 in-vehicle camera, 20 control device, 21 personal information storage unit, 22 related information storage unit, 23 content storage unit, 24 biosensor group, 25, 209 communication unit, 50 output device, 51 display unit, 52 projection unit, 53A to 53D audio playback unit, 100 vehicle, 111A, 111B microphone, 121 vehicle speed sensor, 122 positioning sensor, 123 camera, 131 front seat camera, 132 rear seat camera, 250 navigation device, 251 location information acquisition unit, 252 map information reference unit, 253 first setting unit, 254 second setting unit, 255 route setting unit, 256 output control unit

Claims

1. a location information acquisition unit that acquires location information of a vehicle; an input unit that accepts input of destination information indicating a destination and further accepts input of purpose information indicating a purpose; a map information reference unit that references map information having road map information and facility information including facilities and parking lots; a first setting unit that provisionally sets a predetermined range including the destination as a first destination based on the destination information and the road map information referenced by the map information reference unit; a second setting unit that sets a specific location that is smaller than the range of the first destination as a second destination based on the destination information and the facility information referenced by the map information reference unit; a route setting unit that sets a route based on the position information of the vehicle acquired by the position information acquisition unit and the position information of the second destination; an output unit that outputs route guidance information based on the set route and position information of the vehicle; A navigation device comprising:

2. 2. The navigation device according to claim 1, When the first destination is provisionally set by the first setting unit, the second setting unit outputs to the output unit a plurality of destination candidates pre-associated with facilities present at the first destination; the input unit inputs a signal for selecting one of the plurality of destination candidates as the destination information; the second setting unit sets the specific location that matches the selected destination candidate as the second destination; A navigation device characterized by:

3. 3. The navigation device according to claim 2, the second setting unit outputs a plurality of destination candidates associated in advance with each facility to the output unit in accordance with a predetermined priority order for each facility; A navigation device characterized by:

4. 4. The navigation device according to claim 3, The priority of the plurality of destination candidates is determined by a weight value based on at least one of the number of times the destination candidate was selected in the past, the day of the week the destination candidate was selected in the past, and the time period the destination candidate was selected in the past. A navigation device characterized by:

Images