JP3704708B2 - Route guidance device, route guidance method, and route guidance program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a route guidance device, a route guidance method, and a route guidance program. More specifically, the present invention relates to a route guidance device, a route guidance method, and a route guidance program that perform processing based on the line of sight of an occupant.
[0002]
[Prior art]
When a destination is set, an in-vehicle route guidance device (navigation device) that sets an optimum route from the current position to the destination and guides the vehicle along the optimum route is widely used.
[0003]
In addition, map information and related information can be distributed from an external information center to vehicles via the Internet. As a result, it is possible to perform route guidance using the latest map information and related information with an in-vehicle route guidance device.
[0004]
On the other hand, conventionally, a driver's line of sight is detected using a camera (eye camera) mounted in front of the driver's seat of the vehicle, and switches of an air conditioner are operated using the detected line of sight (Japanese Patent Laid-Open No. Hei 6). -261863), adjusting the headlight irradiation direction and the brightness of the meter display according to the driver's visual behavior (Japanese Patent Laid-Open No. 9-76815), or driving operation of the driver according to the driver's line-of-sight direction An apparatus for estimating the degree of concentration with respect to (Japanese Patent Laid-Open No. 2000-211153) has been proposed.
[0005]
[Problems to be solved by the invention]
However, for example, when the set destination is a facility such as a restaurant or a company, and this destination is housed in a building such as a large building, even if the route is routed to the vicinity of the destination, It was inconvenient because I didn't know if the local facility was housed. Therefore, in such a situation, there is a need for a route guidance device (navigation device) that can accurately notify a passenger of a building in which a destination is accommodated. There has also been a demand for a route guidance device that can obtain information on a visually recognized building or the like while traveling. In order to develop a route guidance device that satisfies such demands, the present inventors tried to apply the above-described technology for detecting the driver's line-of-sight direction and visual recognition behavior to the route guidance device.
[0006]
As described above, the present invention has been made to solve the above-described problem. Even when a facility that is a destination is accommodated in a building such as a building, the destination is assigned to a vehicle occupant. An object of the present invention is to provide a route guidance device, a route guidance method, and a route guidance program capable of accurately notifying.
[0007]
Another object of the present invention is to provide a route guidance device capable of notifying information on a building visually recognized by an occupant.
[0008]
[Means for Solving the Problems]
According to the present invention, there is provided a route guidance device having a function of guiding a vehicle to a destination, a map database in which map data including three-dimensional data of a building is stored, each building, and housed in the building A building database that stores and associates a facility that has been set, a search unit that searches the building database for a building in which a facility that is a set destination is stored, and a line of sight of a vehicle occupant Based on the detected line of sight and the current position and direction of the vehicle, visual estimation means for estimating a building viewed by an occupant of the vehicle from the map data, and visual recognition of the occupant A building determination means for determining whether the building estimated to be a building that houses the facility that is the set destination, and the occupant is the set destination It is when the facility is viewing the building is accommodated, route guidance device characterized by being provided with a visual affirmation means for affirming the viewing behavior of the occupant is provided.
[0009]
According to such a configuration, based on the sight of the occupant, it is determined whether the building that the occupant is viewing is a building that houses the facility that is the destination, and the result is notified, The crew member can know whether or not the destination facility is accommodated in the building he / she is looking at.
[0010]
According to a preferred aspect of the present invention, there is further provided line-of-sight guidance means for guiding the line of sight of the occupant to a building in which the facility as the set destination is accommodated based on the current position and direction of the vehicle. I have. According to such a structure, the passenger | crew can visually recognize the building in which the facility which is a destination is accommodated easily.
[0011]
According to another preferred aspect of the present invention, the line-of-sight guidance means displays the line of sight of the occupant when the occupant is not visually recognizing a building in which the facility that is the set destination is accommodated. Guide you to the building that houses the facility that is your destination.
[0012]
According to another preferred aspect of the present invention, the line-of-sight affirming means stops operating under a predetermined condition. According to another preferred aspect of the present invention, the line-of-sight guiding means stops operating under a predetermined condition. The predetermined condition is, for example, when the occupant makes these operations unnecessary, or when the destination has been route guidance before.
[0013]
According to another preferred aspect of the present invention, the visual determination means for determining whether or not the building in which the facility that is the set destination is accommodated can be visually recognized from the current position, and the facility that is the destination When the building in which the vehicle is housed is not visible from the current position, the vehicle is provided with guiding means for guiding the vehicle to a position where the building is visible. According to such a configuration, the occupant can surely see the building in which the destination is accommodated.
[0014]
According to the other preferable aspect of this invention, the said building database has memorize | stored the target of the facility in the said building, and the said visual guidance means guides the said passenger | crew's visual line to the said target. The target is a signboard of a facility in the building posted on the outside of the building, a guide, a taxiway to the building, or the like. According to such a structure, the passenger | crew can recognize easily that the facility which is a destination is accommodated in the building.
[0015]
According to another preferred aspect of the present invention, the visual recognition means operates when the vehicle reaches the vicinity of the destination. According to another preferred aspect of the present invention, the visual recognition means operates when the vehicle is stopped.
[0020]
According to another aspect of the present invention, there is provided a route guidance method having a function of guiding a vehicle to a destination, wherein the building in which the set destination is accommodated is accommodated in the building and the building. The line-of-sight of the occupant of the vehicle is set based on the step of searching from the building database storing the associated facilities, the current position and orientation of the vehicle, and the three-dimensional data of the building. The step of guiding to the building in which the destination is accommodated, the line of sight of the vehicle occupant are detected, and the vehicle occupant visually recognizes based on the detected line of sight and the current position and direction of the vehicle Estimating a building, determining whether the building estimated by the occupant is a building in which the facility that is the set destination is accommodated, and the occupant At the set destination That when the facility is viewing the building is accommodated, route guidance method characterized by comprising the steps of affirming viewing behavior of the occupant is provided.
[0021]
According to another aspect of the present invention, there is provided a route guidance program having a function of guiding a vehicle to a destination, wherein the building in which the set destination is accommodated is accommodated in the building and the building. The building database stored in association with the existing facility is searched, and based on the current position and orientation of the vehicle and the three-dimensional data of the building, the line of sight of the vehicle occupant is set in the set purpose. The building is guided to the building in which the ground is accommodated, and the line of sight of the vehicle occupant is detected. Based on the detected line of sight and the current position and direction of the vehicle, Estimating and determining whether the building estimated to be visually recognized by the occupant is a building in which the facility which is the set destination is accommodated, and the occupant determines the set purpose The local facility is housed When you are viewing an object operates the computer to affirm the viewing behavior of the occupant, is provided a route guidance program, characterized in that.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a basic configuration diagram showing an embodiment of the route guidance apparatus of the present invention.
[0023]
In FIG. 1, the code | symbol 1 has shown the route guidance apparatus (navigation apparatus) for vehicles. An information center 2 is provided outside the vehicle. The information center 2 includes a host computer 4, a map information database 6 for storing map information and the like, and various content databases 8 for storing various contents. I have. The map information includes not only information on roads but also three-dimensional data such as buildings. Therefore, in the present embodiment, it is possible to estimate how the surrounding buildings and scenery look from each position on the road based on this three-dimensional data. The map information database 6 also stores building information such as what kind of facility is in the building. The facility includes various tenants such as restaurants and companies.
[0024]
The route guidance device 1 can be connected to the Internet 12 via a communication station 10 installed in each region, and is configured to receive various information including map information and building information from the information center 2. Yes.
[0025]
Since the route guidance device 1 includes a DVD-ROM storing map information and building information for route guidance, even when the map information and building information are not received from the information center 2, the route guidance device 1 relates to route guidance and buildings. Information can be provided. When map information and building information are received from the information center 2, more accurate route guidance and the like can be performed based on the latest map information and building information.
[0026]
The route guidance device 1 sends a CPU 14 for route guidance (route guidance) to the destination of the vehicle based on the input data and the operation of the occupant, and various information such as map information and building information from the information center 2 to the Internet. 12 and the communication station 10 and a transmission / reception device 16 for transmitting information from the vehicle side to the information center 2 is provided. The transmission / reception device 16 is, for example, a car phone or a mobile phone.
[0027]
The route guidance device 1 further includes an HDD storage device 18 that stores map information, building information, and the like received from the information center 2, a display 20 that displays various information such as map information, and map information from the information center 2. Separately prepared on the vehicle side is the map information, DVD-ROM 22 for storing building information, operation switch 24 for the passenger to request destination information and map information, building information, etc. to the information center 2, information An alarm device 26 is provided to warn that information cannot be received from the center 2. The building information stored in the DVD-ROM 22 or the building information stored in the HDD storage device 18 includes information regarding what kind of facility is housed in which position of which building. That is, the DVD-ROM 22 or the HDD storage device 18 is formed with a building database in which the buildings and the facilities accommodated in the buildings are stored in association with each other. The building database also stores information about buildings.
[0028]
The route guidance device 1 includes a GPS receiver 28 that detects the current position of the vehicle, a vehicle speed sensor 30, and a gyro sensor 32. The GPS receiver 28 receives radio waves from the satellite to detect the current position of the vehicle, the vehicle speed sensor 30 detects the speed of the vehicle to obtain the moving distance, and the gyro sensor 32 detects the moving direction of the vehicle. The route guidance device 1 is configured so that the current position and orientation of the vehicle can be accurately calculated from the detection results of these sensors 28, 30 and 32.
[0029]
In addition, the route guidance device 1 includes a VICS receiver 34 for obtaining traffic information and the like from the information center 2 or another traffic information center (not shown).
[0030]
The route guidance device 1 according to the present embodiment is a navigation device that performs route guidance while detecting the driver's line of sight and guiding the line of sight in a predetermined direction as necessary. In order to perform such line-of-sight guidance, the route guidance apparatus 1 includes a CCD camera 36, an eye camera 38, and a line-of-sight guidance apparatus 40. The CCD camera 36 is attached to the upper part of the vehicle with the front of the vehicle facing forward, and by the image recognition function, from the photographed image, the presence / absence of other vehicles traveling in the front, the traffic volume (the presence / absence of traffic congestion and the degree of traffic jam), walking The presence / absence and amount of the person, the brightness outside the vehicle, the weather, and the like can be detected.
[0031]
The eye camera 38 is attached to an upper position in the cabin, and is configured to detect the direction of the driver's line of sight and the distance to the target object by photographing the driver's pupil and the like. ing. Here, the eye camera includes, for example, the EOG method, the photoelectric element type EOG (P-EOG) method, the corneal reflection method, the first and fourth Purkinje image detection methods, the contact lens method, the search coil method, and the infrared fundus camera method. Various techniques such as these are applied.
[0032]
The line-of-sight guidance device 40 includes a computer, detects the driver's line of sight based on the driver's line of sight (the direction of the line of sight and / or the distance to the gaze target) detected by the eye camera 38, and determines the current vehicle state. Based on the position and orientation and the driver's line of sight, search the map data to determine whether the driver's line of sight is facing the branch where the line of sight should enter or the building where the destination is housed. The driver has a function of notifying the driver whether or not the line of sight is entering the building where the branch road or the destination is accommodated. The line-of-sight guidance device 40 also has a function of guiding the driver's line of sight to a branch road or a building in which a destination is accommodated. Furthermore, the line-of-sight guidance device 40 also has a function of searching for a building or the like visually recognized or pointed by the driver in response to a request from the driver and providing information related to the building.
[0033]
FIG. 2 is a view showing the periphery of the driver's seat of a vehicle on which the route guidance device 1 of the present embodiment is mounted.
[0034]
A speaker 42 is attached to the A pillar in the vicinity of the driver's seat, and voice guidance, notification, etc. to the driver are performed by the speaker 42. In addition, a guide beam irradiation device 48 that irradiates a guide beam 46 for guiding the driver's line of sight is attached to the space inside the windshield 44 above the driver's seat. In the present embodiment, the guide beam 46 is irradiated so that an object to be visually recognized by the driver is positioned on the tip or an extension line thereof. Instead of the guide beam 46, a configuration for projecting a visual line guidance display on the windshield 44 may be employed. In this case, the line-of-sight guidance display is projected at a position where an object (line-of-sight guidance object) to be visually recognized exists on an extension of a line connecting the driver's eyes and the line-of-sight guidance display.
[0035]
Further, the same content as the display content of the display 20 is displayed on the windshield 44 as an auxiliary display 20a by the OHD device.
[0036]
Further, a line-of-sight confirmation switch 52 and a guide beam irradiation switch 54 are attached to the steering wheel 50. The line-of-sight confirmation switch 52 is a switch to be pressed when the driver wants to confirm the line of sight to the line-of-sight guidance device 40, that is, to tell the line-of-sight guidance device 4 what he / she is looking at. The guided beam irradiation switch 54 is a switch to be pressed so that the driver can recognize the visual target object with the guided beam when the visual target object cannot be identified only by voice guidance. When the guide beam irradiation switch 54 is pressed, the guide beam 46 is irradiated to the indoor space so as to indicate the visually recognized object. In addition, the structure which shows a visual recognition object by other methods, such as radiating | emitting this guidance beam toward a visual recognition object outside a vehicle, or displaying a visual recognition object with a hologram in indoor space, may be sufficient.
[0037]
Next, an example of route guidance by the route guidance device 1 of the present embodiment will be described with reference to FIG. FIG. 3 is a diagram in which the driver's viewing direction (line of sight) and voice guidance content are superimposed on the map display displayed on the display 20 in order to facilitate understanding. In this example, since the FG Shoji occupying the ABC building is set as the destination in the route guidance device 1, it enters the right branch 60 through the Y-junction (branch) 58, and the branch road Route guidance to the ABC building on the right side of 60 is made. The route guidance for the driver is performed as follows along with the gaze guidance. Note that the position of the host vehicle, the moving direction (direction), the speed, the surrounding map information (how the surrounding buildings and the like are seen), and the like are sequentially input to the line-of-sight guidance device 40. The line-of-sight guidance device 40 always estimates what the driver is viewing based on this information and the detection result of the eye camera 38.
[0038]
When the vehicle A during route guidance is traveling on the position A <b> 1 of the road 56, the driver's line of sight B <b> 1 is directed forward along the traveling road 56 in the traveling direction. When the vehicle A reaches the position A2, there is a gas station (line-of-sight guidance object) 62 on the left front side. Therefore, the line-of-sight guidance device 40 operates the speaker 42 to give voice guidance “There is a gas station on the left”. At the same time, the mark of the gas station 62 is enlarged on the map on the display 20.
[0039]
In response to the voice guidance and the enlarged display of the gas station, the driver's line of sight B2 moves to the left front and recognizes the gas station 62. The movement of the driver's line of sight is detected by the eye camera 38. When it is determined from the detection result of the eye camera 38 that the driver has visually recognized the gas station 62, the line-of-sight guidance device 40 activates the speaker 42 and performs affirmation by voice "Yes, that is it". In this embodiment, in order to guide the driver's eyes, the gasoline station 62 that is the object of eye guidance is enlarged and displayed. However, the present invention is not limited to this, and a change to a conspicuous color on the map is possible. Other highlighting such as blinking display may be performed.
[0040]
Next, when the vehicle passes through the gas station 62 and reaches the position A3, when it is determined that the driver's line of sight B3 is facing the traveling road 56, the voice guidance “Yes, that road” is performed. . With this guidance, the driver is confident that he is driving on the right road and continues to drive on the road 54.
[0041]
Furthermore, when the vehicle advances and reaches position A4, the fire station 64, which is the object of gaze guidance, approaches the front of the right hand, so the gaze guidance device 40 activates the speaker 42 and says, “There is a fire station on the right hand ahead. ”Is executed, and the mark of the fire department 64 is enlarged and displayed on the display 20 at the same time.
[0042]
The driver's line of sight B4 moves in the right hand direction according to the voice guidance and the enlarged display of the fire department, and visually recognizes the fire department 62. The movement of the driver's line of sight is detected by the eye camera 38. When it is determined from the detection result of the eye camera 38 that the driver has visually recognized the fire station 64, the line-of-sight guidance device 40 activates the speaker 42, “Yes, that is the fire station. Follow the road on the left side. Voice guidance. With this guidance, the driver can enter the branch road 60 without hesitation on the Y-shaped road 58.
[0043]
When the vehicle travels on the branch road 60 and reaches the position A5 around the ABC building 66 where the destination FG Trading is located on the third floor, the line-of-sight guidance device 40 provides building information. In the present embodiment, this building information provision is configured to be executed only when the occupant desires to provide the building information by pressing or holding the operation switch 24. The line-of-sight guidance device 40 is said to be located on the third floor of the ABC building, which is the destination FG trading company that has been searched in advance from the building database stored in the DVD-ROM 22 or the HDD storage device 18 at the time of destination setting. Based on the result, the speaker 42 is operated, and the line-of-sight guidance is executed by voice guidance “Arrive at the destination. FG Shoji is a building on the right hand”. The driver stops the vehicle and moves the line of sight B5 in the right hand direction in accordance with the line of sight guidance by the voice guidance to visually recognize the ABC building 66.
[0044]
The movement of the driver's line of sight is detected by the eye camera 38. When it is determined from the detection result of the eye camera 38 that the driver has visually recognized the ABC building 66, the line-of-sight guidance device 40 operates the speaker 42, and “Yes, that building. FG Trading on the third floor of the building” With the voice guidance saying "There is an affirmative visual recognition behavior", the location information in the building of the facility (FG Shoji) that is the destination is notified. By this notification, the driver can confirm that the destination (FG Trading) is viewing the building (building) and can know the position of the destination in the building. Further, when route guidance to FG trading has been executed before, it may be configured not to perform visual guidance for providing building information, affirmation of visual behavior, or the like.
[0045]
When it is determined that the driver is viewing another building such as an adjacent building while coming in front of the ABC building, the line-of-sight guidance device 40 indicates that it is not the building. The voice guidance indicating that the vehicle is wrong is executed, and the guidance beam 46 is irradiated to guide the driver's line of sight to the ABC building. A configuration in which irradiation of the guide beam 46 is executed only when the guide beam irradiation switch 54 is pressed may be employed.
[0046]
Furthermore, when the building information includes a target such as a tenant's signboard attached to the building and its mounting position, the target may be guided to the line of sight.
[0047]
Next, processing performed for providing building information in the line-of-sight guidance device 40 will be described with reference to the flowcharts of FIGS. 4A and 4B. This building information provision is performed in addition to normal route guidance.
[0048]
When the process starts, first, at step S1, it is determined whether or not building information provision is required. If YES in step S1, that is, if the occupant desires to provide building information by pressing the operation switch 24, the process proceeds to step S2, and the destination set in the route guidance has previously conducted route guidance. It is determined whether or not it is a certain place. If YES in step S2, that is, if it is the first route guidance, the process proceeds to step S3, the building database stored in the DVD-ROM 22 or the HDD storage device 18 is searched, and the destination (facility) is located at which position of which building. Read whether it is contained.
[0049]
Next, in step S4, it is determined whether or not the vehicle is around the destination, and whether or not the vehicle is stopped in step S5. When the vehicle is stopped around the destination, the current position and direction of the vehicle are confirmed in step S6, and the current position and direction are compared with map information (three-dimensional data such as buildings) in step S7. Estimate the appearance of surrounding buildings from the location. Next, the process proceeds to step S8, and it is determined whether or not the current position of the vehicle is a position where the building where the facility that is the set destination is occupying can be visually confirmed.
[0050]
When NO in step S8, the vehicle is guided to a position where the building where the facility which is the set destination is occupying is visible in step S9. This guidance is performed by voice guidance, display on a display, or the like. Next, it is determined whether or not the vehicle is stopped in step S10. When the vehicle is stopped, the current position and direction of the vehicle are confirmed again in step S11. In step S12, the current position and direction of the vehicle and map information are checked. The appearance of surrounding buildings from the current position is estimated by collating with (three-dimensional data such as buildings).
[0051]
After step S12 is completed and if YES in step S8, the process proceeds to step S13 to guide the line of sight to the building where the facility that is the destination is located. The line-of-sight guidance may be, for example, guidance by voice guidance such as “(Destination) FG Trading is a building on the right hand”, guidance by an irradiation beam, or guidance by both. Next, in step S14, the movement of the driver's line of sight due to this line of sight guidance is detected, and in step S15, it is determined whether or not the driver's line of sight faces the building where the facility that is the destination is located. This determination is made based on the detection result by the eye camera, the current position and direction of the vehicle obtained from the detection results of various sensors of the route guidance device 1, map information, and the like.
[0052]
If YES in step S15, the visual recognition behavior of the driver is affirmed by voice guidance in step S16. At this time, additional information such as “FG Trading is on the third floor of this building” may be provided. If the answer is NO in step S15, the process proceeds to step S17, where the driver's visual behavior is denied by voice guidance such as “not that building” and “FG Trading is on the 3rd floor of the building next to the building. The guidance of the line of sight to the correct building is performed by voice guidance such as “Yes,” and the process returns to step S14. In addition to or instead of the visual line guidance by the voice guidance, the visual line guidance by a guide beam may be performed.
[0053]
In addition, if it is not necessary to provide building information because the destination is not accommodated in a large building as a result of the search in step S3, the passenger is notified, and the processing in step S4 and subsequent steps is not performed. It may be configured.
[0054]
Furthermore, the process of step S13 may not be performed, that is, when the destination facility arrives around or in front of the building, the line-of-sight guidance to this building may not be performed.
[0055]
Next, the contents of another building information provision process performed by the line-of-sight guidance device 40 will be described with reference to the flowchart of FIG. This building information provision provides the occupant with information on a building or the like visually recognized by the driver while traveling.
[0056]
This information provision is executed when the driver presses the line-of-sight confirmation switch 52 and makes a search request for building information (step S20). When the line-of-sight confirmation switch 52 is pressed, the line-of-sight guidance device 40 determines that the driver is based on the driver's line of sight detected from the imaging result of the eye camera 38, the current position and orientation of the vehicle, map information, and the like. What is being visually recognized is detected (step S21). Next, the building information stored in the DVD-ROM 22 or the building information stored in the HDD storage device 18 is searched to detect information (name, accommodation facility, etc.) related to the visual recognition target of the driver. Is notified to the passenger via the speaker 42 or the like (step S22).
[0057]
Moreover, the structure which provides the building information of the building which the driver pointed at instead of the building which the driver visually recognized may be sufficient. In this case, the eye camera 38 or another camera is configured to photograph the driver's finger.
[0058]
In addition to building information, other landmarks, mountains, rivers, and other objects that can be seen from the train window are included in the database, and these information is provided according to the driver's request. You may comprise as follows.
[0059]
The present invention is not limited to the above-described embodiments, and various changes or modifications can be made within the scope of the technical matters described in the claims.
[0060]
For example, in the above-described embodiment, the driver confirms the line of sight with the line of sight confirmation switch 52, which is a switch to be pressed when the driver wants to confirm the line of sight with the line of sight guidance device 40, i.e., what the sight guidance apparatus 4 is looking at. Although a guide beam irradiation switch 54 for enabling recognition by a guide beam is provided, a configuration in which these switches are not provided may be used.
[0061]
Further, a configuration in which a voice input device is provided and the functions of the visual line confirmation switch visual recognition 52 and the guide beam irradiation switch 54 are replaced with the voice input device may be used.
[0062]
Furthermore, in the above-described embodiment, only the driver's line of sight is targeted. However, another passenger's line of sight may be detected, and information may be provided based on these.
[0063]
【The invention's effect】
As described above, according to the present invention, even when the destination facility is housed in a building such as a building, the route guidance device can accurately notify the destination to the vehicle occupant. Etc. are provided.
[Brief description of the drawings]
FIG. 1 is a basic configuration diagram showing an embodiment of a route guidance device of the present invention.
FIG. 2 is a view showing a periphery of a driver's seat of a vehicle on which a route guidance device according to an embodiment of the present invention is mounted.
FIG. 3 is a diagram illustrating an example of display display during route guidance by the route guidance device according to the embodiment of the present invention.
FIG. 4A is a flowchart showing the contents of processing performed for providing building information in the line-of-sight guidance apparatus according to an embodiment of the present invention.
FIG. 4B is a flowchart showing the contents of processing performed for providing building information by the line-of-sight guidance apparatus according to one embodiment of the present invention.
FIG. 5 is a flowchart showing the contents of another building information provision process performed by the line-of-sight guidance apparatus according to the embodiment of the present invention.
[Explanation of symbols]
1: Route guidance device (navigation device)
18: HDD storage device
22: DVD-ROM
38: Eye camera
40: Gaze guidance device
46: Guide beam
52: Gaze confirmation switch
54: Guide beam irradiation switch

Claims (11)

A route guidance device having a function of guiding a vehicle to a destination,
A map database in which map data including 3D building data is stored;
A building database that stores each building in association with a facility housed in the building;
A search means for searching the building database for a building in which a facility as a set destination is accommodated;
Line-of-sight detection means for detecting the line of sight of the vehicle occupant;
Based on the detected line of sight and the current position and direction of the vehicle, from the map data, visual estimation means for estimating a building that is being visually recognized by an occupant of the vehicle;
A building judging means for judging whether the building estimated to be visually recognized by the occupant is a building in which the facility as the set destination is accommodated;
When the occupant is visually recognizing a building in which the facility that is the set destination is accommodated, a visual affirming unit that affirms the visual behavior of the occupant;
A route guidance device comprising: Line-of-sight guidance means for guiding the line of sight of the occupant to a building in which the facility that is the set destination is accommodated based on the current position and direction of the vehicle;
The route guidance device according to claim 1. The line-of-sight guidance means accommodates the facility that is the set destination of the occupant's line of sight when the occupant is not viewing the building in which the facility that is the set destination is accommodated. To the building you are in,
The route guidance device according to claim 2. The route guidance device according to any one of claims 1 to 3, wherein the line-of-sight affirming means stops operating under a predetermined condition. The route guidance device according to claim 2 or 3, wherein the line-of-sight guidance unit stops operating under a predetermined condition. Visual determination means for determining whether the building in which the facility that is the set destination is accommodated is visible from the current position;
When the building in which the facility as the destination is accommodated is not visible from the current position, the building includes guidance means for guiding the vehicle to a position where the building is visible.
The route guidance device according to any one of claims 1 to 5. In the building database, a target of a facility in the building is stored,
The line-of-sight guidance means guides the sight line of the occupant to the target;
The route guidance device according to any one of claims 2 to 4. The visual confirmation means is activated when the vehicle reaches the vicinity of the destination.
The route guidance device according to any one of claims 1 to 7. The visual confirmation means is activated when the vehicle is stopped.
The route guidance device according to any one of claims 1 to 8. A route guidance method having a function of guiding a vehicle to a destination,
Retrieving a building in which the set destination is accommodated from a building database storing the building and the facility accommodated in the building in association with each other;
Guiding the occupant's line of sight of the vehicle to the building in which the set destination is accommodated based on the current position and orientation of the vehicle and the three-dimensional data of the building;
Detecting a line of sight of an occupant of the vehicle, and estimating a building viewed by the occupant of the vehicle based on the detected line of sight and the current position and direction of the vehicle;
Determining whether the building estimated to be viewed by the occupant is a building in which the facility that is the set destination is accommodated; and
When the occupant is visually recognizing the building in which the facility that is the set destination is accommodated, the step of affirming the sighting behavior of the occupant;
A route guidance method comprising: A route guidance program having a function of guiding a vehicle to a destination,
Search for the building in which the set destination is accommodated from the building database that stores the building and the facility accommodated in the building in association with each other.
Based on the current position and orientation of the vehicle and the three-dimensional data of the building, guide the line of sight of the vehicle occupant to the building in which the set destination is accommodated,
Detecting the line of sight of the occupant of the vehicle, and based on the detected line of sight and the current position and direction of the vehicle, estimating a building that the occupant of the vehicle is viewing;
It is determined whether the building estimated to be visually recognized by the occupant is a building that houses the facility that is the set destination,
When the occupant is visually recognizing the building in which the facility that is the set destination is accommodated, the computer is operated so as to affirm the observing behavior of the occupant;
A route guidance program characterized by that.

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