JP2010243366A - Destination candidate announcement apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a destination candidate announcement apparatus for easily identifying a facility as a destination candidate. <P>SOLUTION: Information on lines of sight of at least two passengers getting on a vehicle is detected. A relative coordinate of a point at which the lines of sight of the passengers intersect with each other is calculated by using the information on the lines of sight. If there is an intersection between the lines of sight of the passengers, the intersection between the lines of sight of the passengers (an absolute coordinate) is calculated by using the calculated relative coordinate and a current position of the vehicle (step S10-S15). The facility including the intersection (the absolute coordinate) is detected. The detected facility is announced as the destination candidate (step S16-S18). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a destination candidate notification device that notifies a destination candidate facility.

  Conventionally, there has been a navigation device disclosed in Patent Document 1. The navigation apparatus includes a front landscape monitoring camera that monitors a front landscape, a gaze monitoring camera that monitors a driver's gaze, and a building database that includes building shapes and images, and detailed information.

  The navigation device always monitors the driver's line of sight with the line-of-sight monitoring camera. When an instruction from the driver, for example, “I want to go there” is input from the microphone, the front landscape monitoring camera The captured image is sent to the image processing unit, and information of the line-of-sight monitoring camera is sent to the line-of-sight direction calculation unit. The collation unit that has acquired information from the image processing unit and the line-of-sight direction calculation unit specifies a building in the line-of-sight direction based on information from the image processing unit and the line-of-sight direction calculation unit.

  Next, the navigation device determines whether or not the specified building is in the building database, and when the specified building is in the building database, starts a route search to that building (destination). When the route search is completed, the route to the building is displayed on the display device, and route guidance is started.

JP 2001-330450 A

  As described above, the navigation device disclosed in Patent Document 1 searches for and displays a route to a building with the building as a destination when the driver gives an instruction to the building or the like that the driver is viewing. To do.

  However, the driver's line of sight changes frequently. Therefore, when a building that is a route guidance destination candidate is set based on the line of sight of only the driver, there is a problem that it is difficult to specify the building.

  The present invention has been made in view of the above-described problems, and provides a destination candidate notification device that can easily identify a facility in identifying a facility that is a destination candidate based on a line of sight. Objective.

In order to achieve the above object, the destination candidate notifying device according to claim 1 is mounted on a vehicle and notifies a passenger of a destination candidate,
Line-of-sight information detection means for detecting information about the line of sight of at least two passengers in the vehicle;
An intersection calculation means for calculating an intersection of each passenger's line of sight using information on the line of sight detected by the line of sight information detection means;
Facility detection means for detecting a facility including the intersection calculated by the intersection calculation means;
Informing means for informing a facility detected by the facility detecting means as a destination candidate is provided.

  In this way, by using the eyes of at least two passengers, it is possible to suppress the possibility that a large number of destination candidate facilities appear, and it is possible to easily identify a facility that is a destination candidate.

  In addition to the facility including the intersection calculated by the intersection calculation unit, the facility detection unit detects a similar facility that is the same type of facility as the facility, and the notification unit includes the facility detection unit. In addition to the facilities detected at, a similar facility may be notified as a destination candidate.

  By doing in this way, not only the facility which at least two crew members are seeing but the same kind of facility as the facility can be reported as a destination candidate, and it is preferable.

  Moreover, as shown in claim 3, when detecting a plurality of similar facilities, the facility detecting means calculates the cost of a route from the current position of the vehicle to the plurality of similar facilities, and calculates the number from the lowest cost. The same kind of facility may be detected, and the notification means may notify several similar facilities from the lowest cost as destination candidates in addition to the facility detected by the facility detection means.

  By doing in this way, not only the facility which at least two crew members are seeing but several facilities which can go quickly in the same kind of facilities as the facility can be reported as a destination candidate.

  According to a fourth aspect of the present invention, when a plurality of similar facilities are detected, the facility detecting means calculates a cost of a route from the current position of the vehicle to the plurality of similar facilities, and determines the same facility with the lowest cost. The detection and notification means may notify the same kind of facility with the lowest cost as a destination candidate in addition to the facility detected by the facility detection means.

  By doing in this way, not only the facility which at least two crew members are seeing but the facility which can go quickly in the same kind of facility as the facility can be reported as a destination candidate, and it is preferable.

  According to a fifth aspect of the present invention, the line-of-sight information detection means includes a distance from the line-of-sight information detection means to each occupant, an angle formed by a line connecting the line-of-sight information detection means and each occupant and the traveling direction of the vehicle, line-of-sight information The angle between the line connecting the detection means and each occupant and the line of sight of each occupant is detected as information about the line of sight, and the intersection calculation means detects each occupant and line of sight information from the information about the line of sight detected by the line of sight information detection means. Obtain the relative coordinates of the intersection point based on one of the devices, determine the current position of the vehicle, and calculate the absolute coordinates as the intersection point of each occupant's line of sight from the relative coordinates of the intersection point and the current position of the vehicle. Also good.

  In addition, as shown in claim 6, a setting means for setting a facility as a destination candidate notified by the notification means as a destination, and a route from the current position of the vehicle to the destination set by the setting means And route guidance means for performing route guidance from the current position of the vehicle to the destination set by the setting means.

  By doing in this way, since the route guidance to the facility of the same type as the facility which at least two crew members are seeing, or that facility is made, it is preferable.

It is a block diagram which shows schematic structure of the navigation apparatus in embodiment of this invention. It is an image figure which shows the positional relationship of a gaze detection apparatus, a passenger | crew, and a facility. It is a flowchart which shows the processing operation of the navigation apparatus in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The navigation device (destination candidate notification device) 100 is mounted on a vehicle. As shown in FIG. 1, the navigation device 100 includes a position detector 1, a map data input device 6, an operation switch group 7, an external memory 9, a display device 10, a transceiver 11, a voice controller 12, a speaker 13, and a voice recognition device. 14, a microphone 15, a remote control sensor 16, a remote control terminal (also referred to as a remote control in the following description and drawings) 17, a line-of-sight detection device 18, and a control device 8 to which these devices are connected. Note that the navigation device 100 of the present invention has a destination candidate based on a passenger's line of sight in addition to a conventional navigation function such as route guidance based on a signal indicating a destination input from the operation switch group 7 or the like. Search, notification, setting, and the like.

  The control device 8 is configured as a normal microcomputer, and includes a peripheral CPU, ROM, RAM, I / O, and a bus line (all not shown) for connecting these configurations. The control device 8 is based on various signals input from the position detector 1, the map data input device 6, the operation switch group 7, the external memory 9, the transceiver 11, the sound controller 12, the remote control sensor 16, and the line-of-sight detection device 18. Various processing (for example, map scale change processing, menu display selection processing, destination setting processing, route search execution processing, route guidance start processing, current position correction processing, display screen change processing, volume adjustment processing, destination candidate search processing, etc. ).

  The position detector 1 includes a surrounding geomagnetic sensor 2, a gyroscope 3, a distance sensor 4, and a GPS receiver 5 for GPS (Global Positioning System) that detects the current position of the vehicle based on radio waves from a satellite. have. Since these sensors 2 to 5 have errors having different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, a part of the above may be used, and further, a steering rotation sensor, a vehicle sensor for each rolling wheel, or the like may be used.

  The map data input device 6 is mounted with a storage medium (not shown), and stored in the storage medium for map matching data for improving the accuracy of position detection, map data (including link data and node data), landmarks It is a device for inputting various data including data and facility data. The facility data is data such as types (types), position information (coordinates), names, addresses, and the like of various facilities. As the storage medium, for example, a CD-ROM, DVD-ROM, memory card, HDD or the like can be used.

  As the operation switch group 7, for example, a touch switch integrated with the display device 10, a mechanical switch, or the like can be employed. When the switch is operated, the operation switch group 7 performs various processing (for example, map scale change processing, menu display selection processing, destination setting processing, route search execution processing, route guidance start processing, current position) to the control device 8. (Execution of correction processing, display screen change processing, volume adjustment processing, destination candidate search processing, etc.) and input of various information. The remote controller 17 is provided with a plurality of operation switches (not shown). When these switches are operated, the remote controller sensor 16 instructs the control device 8 to execute various functions or inputs various information. Or That is, the operation switch group 7 and the remote controller 17 (remote control sensor 16) input a signal instructing execution of various functions and a signal indicating various information to the control device 8 in accordance with the switch operation. Note that the operation switch group 7 and the remote controller 17 can cause the control device 8 to execute the same function or input the same information by any switch operation.

  For example, when a signal indicating a destination and a signal indicating a destination setting or route search instruction are input from the remote control sensor 16 or the operation switch group 7 via the remote controller 17, the control device 8 detects the position detector. Using the signal from 1 and the data from the map data input device 6, the destination is set, the current position is detected, and the optimum route from the current position to the destination is automatically searched to guide the route. Set. As a method for automatically setting an optimum guide route, a method such as the Dijkstra method is known. The set guidance route is displayed superimposed on the map displayed on the display device 10 based on the data of the map data input device 6 together with the current position mark indicating the current position detected by the position detector 1. Is done. In addition to the current position mark and guide route, the display device 10 displays other information such as current time, traffic jam information, destination candidates to be described later, and destination candidate setting confirmation on the display map. You can also.

  The external memory 9 can employ a writable mass storage device such as an HDD. The external memory 9 stores a large amount of data and data that should not be erased even when the power is turned off, or frequently used data is copied from the map data input device 6 and used. is there. The external memory 9 may be a removable memory having a relatively small storage capacity.

  The display device 10 performs a navigation screen display for displaying a map for guiding vehicle travel, a guidance route, a destination selection screen, and the like based on a signal from the control device 8, and is a full color display. It can be configured using a liquid crystal display, an organic EL display, a plasma display, or the like.

  The transceiver 11 is a device that receives traffic information, weather information, facility information, advertisement information, etc. provided from the outside (for example, infrastructure such as a VICS system), and transmits vehicle information, user information, etc. to the outside. . Information received from the outside is processed by the control device 8. If necessary, information processed by the control device 8 can be output from the transceiver 11. VICS is a registered trademark of the Road Traffic Information Communication System Center.

  The speaker 13 utters voice data output by the voice controller 12 based on signals from the control device 8 and the voice recognition device 14 (for example, guidance voice at the time of route guidance, destination candidate and destination candidate setting confirmation, etc.). (Sound output).

  The microphone 15 inputs the voice uttered by the operator to the voice recognition device 14 as an electrical signal. The voice recognition device 14 collates the operator's input voice uttered through the microphone 15 with lexical data (comparison target pattern) in a recognition dictionary (not shown) stored therein, and has the highest degree of coincidence. Is input to the voice controller 12 as a recognition result.

  The voice controller 12 controls the voice recognition device 14 and controls talkback output (voice output) through the speaker 13 for an operator who has input voice. Moreover, the process etc. which input the recognition result of the speech recognition apparatus 14 to the control apparatus 8 are also performed. Based on the recognition result, the control device 8 to which the recognition result of the speech recognition device 14 is input via the speech controller 12 is used to perform various processing (for example, map scale change processing, menu display selection processing, destination, etc.) on the operator's utterance. Setting processing, route search execution processing, route guidance start processing, current position correction processing, display screen change processing, volume adjustment processing, destination candidate search processing, etc.).

  The line-of-sight detection device 18 (line-of-sight information detection means) detects the line of sight of all occupants on the vehicle, is information regarding the line of sight of a plurality of occupants, and calculates intersections for calculating intersections of the lines of sight of the plurality of occupants. The business information is output to the control device 8. The line-of-sight detection device 18 is provided on a center line (for example, a rearview mirror) on the side along the traveling direction of the vehicle, and takes an image of a vehicle interior that can be rotated about an axis perpendicular to the ground. And a microcomputer that executes arithmetic processing based on signals from the camera and the sensor. In addition, the control apparatus 8 which acquired this intersection calculation information calculates the intersection (absolute coordinate) of the eyes | visual_axis of several passenger | crew, and makes the facility containing the intersection (absolute coordinate) a destination candidate.

  Here, based on FIG. 2, an example of the calculation process of the intersection of a passenger | crew's eyes | visual_axis is demonstrated. In the present embodiment, a case where an occupant A is on the driver's seat and an occupant B is on the passenger seat is taken as an example.

  The line-of-sight detection device 18 is a distance between the line-of-sight detection device 18 and the occupant A (hereinafter, r (A-device)), a line connecting the line-of-sight detection device 18 and the occupant A (hereinafter, line (A-device)) and the traveling direction. The angle (hereinafter referred to as φ (A)), the line (A-device) and the line of sight of the occupant A (hereinafter referred to as line of sight A) (hereinafter referred to as θ (A)), the line-of-sight detection device 18 and the occupant B Distance (hereinafter referred to as r (B-device)), an angle (hereinafter referred to as φ (B)) formed by a line connecting the visual line detection device 18 and the occupant B (hereinafter referred to as line (B-device)) and the traveling direction. An angle (hereinafter referred to as θ (B)) formed by (B-device) and the line of sight of the occupant B (hereinafter referred to as line of sight B) is output to the control device 8 as intersection calculation information (information regarding the line of sight of at least two passengers). . In addition, the line-of-sight detection device 18 also outputs information on the number of passengers to the control device 8.

  The line-of-sight detection device 18 rotates the camera to the left and right with reference to the center line on the side along the traveling direction of the vehicle, images the interior of the vehicle, recognizes the eyes and face from the captured image, and so on. Detect the number of passengers. Further, the line-of-sight detection device 18 rotates the camera to take an image of the interior of the vehicle, and φ (?) Depending on the rotation angle of the camera with respect to the above-mentioned reference when the occupant's face is detected near the center of the taken image. A) and φ (B) are detected. The line-of-sight detection device 18 detects r (A-device) and r (B-device) based on a signal from the distance sensor. The line-of-sight detection device 18 detects θ (A) and θ (B) by recognizing images of eyes and a face from an image taken by a camera. Note that the method of detecting the intersection calculation information by the line-of-sight detection device 18 is an example, and the present invention is not limited to this.

  Next, the control device 8 that has acquired the intersection calculation information derives a line-of-sight equation for the occupant A and the occupant B. Here, the line-of-sight detection device 18 is set to the origin (0, 0) of relative coordinates.

First, the relative coordinates (xA, yA) of the occupant A are obtained.
xA = r (A-device) sinφ (A) (Equation 1)
yA = r (A-device) cosφ (A) (Equation 2)
Next, the line-of-sight equation for passenger A is obtained.
y intersection = {sin (90 ° −φ (A) −θ (A)) / cos (90 ° −φ (A) −θ (A))} (x intersection point−xA) + yA (Equation 3)
Next, similarly, the relative coordinates (xB, yB) of the occupant B are obtained.
xB = r (B-device) sinφ (A) (Formula 4)
yB = r (B-device) cos φ (A) (Formula 5)
Next, the line-of-sight equation of the occupant B is obtained in the same manner.
y intersection = {sin (90 ° −φ (B) −θ (B)) / cos (90 ° −φ (B) −θ (B))} (x intersection point−xB) + yB (Expression 6)
Then, the relative coordinates (x intersection, y intersection) of the point at which the line of sight of the occupant A and the line of sight of the occupant B intersect are calculated from Formula 3 and Formula 6. Thereafter, the control device 8 detects the relative coordinates (0, 0) of the line-of-sight detection device 18, the relative coordinates (x intersection, y intersection) of the point where the line of sight of the occupant A and the line of sight of the occupant B intersect, and the position detector 1. From the current position (absolute coordinates) of the vehicle calculated based on the signal, the absolute coordinates of the point where the sight line of the occupant A and the sight line of the occupant B intersect are calculated as intersection points (intersection point calculation means). In addition, although the detection of the intersection has been described using the information in the polar coordinate system as described above, the information in the orthogonal coordinate system may be used.

  Since this intersection is a position where the line of sight of the occupant A and the line of sight of the occupant B intersect, it can be regarded as a position where both the occupant A and the occupant B are looking. Therefore, when there is a facility at the intersection, it can be considered that the passenger A and the passenger B are both viewing the facility.

  There is a high possibility that both the passenger A and the passenger B are interested in the facility that the passenger A and the passenger B are both viewing. Therefore, the navigation device 100 according to the present embodiment calculates a point of intersection between the sight line of the occupant A and the line of sight of the occupant B, and searches for a destination candidate (a facility existing at the intersection point) by detecting a facility including the intersection point. The destination candidate is notified to the occupant, or the destination candidate is set as the actual destination. As described above, since the intersection of the lines of sight of at least two occupants (occupant A and occupant B) is used, a destination candidate can be set with high accuracy.

  Here, based on FIG. 3, the processing operation of the navigation apparatus 100 in the present embodiment will be described. The processing shown in FIG. 3 is repeatedly executed while power is supplied to the navigation device 100.

  In step S10, the line-of-sight detection device 18 performs occupant detection. At this time, the line-of-sight detection device 18 detects the number of passengers in the passenger compartment and the intersection calculation information as described above, and outputs the detection result (number information, intersection calculation information) to the control device 8 (line-of-sight information). Detection means). Here, two passengers, passenger A in the driver's seat and passenger B in the passenger seat, have been detected.

  In step S <b> 11, the control device 8 determines whether or not a plurality of people are on the basis of the number of people information output from the line-of-sight detection device 18. If it is determined that a plurality of people are in the vehicle, the process proceeds to step S12. If it is not determined that a plurality of people are in the vehicle, the process returns to step S10.

  In step S12, as described above, the control device 8 repeats the derivation of the line-of-sight equation using the intersection calculation information output from the line-of-sight detection device 18 for the number of detected persons (occupants). Here, a line-of-sight equation for the occupant A and the occupant B is derived.

  In step S13, as described above, the control device 8 calculates the relative coordinates of the points where the sight lines of a plurality of occupants (passenger A and occupant B) intersect from the sight line equations of each occupant derived in step S12.

  In step S14, the control device 8 determines whether or not there are intersections of the line of sight of a plurality of occupants (occupant A and occupant B) from the calculation result in step S13. That is, it is determined whether or not the lines of sight of a plurality of passengers intersect. In other words, it is determined whether or not a plurality of passengers are looking at a common point (for example, a facility). If it is determined that there is an intersection, the process proceeds to step S15. If it is not determined that there is an intersection, the process returns to step S10.

  In step S15, the control device 8 determines the relative coordinates (0, 0) of the line-of-sight detection device 18, the relative coordinates (x intersection, y intersection), and the position where the lines of sight of a plurality of occupants (occupant A and occupant B) intersect. From the current position calculated based on the signal from the detector 1, the absolute coordinates of the point at which the line of sight of the occupant A and the line of sight of the occupant B intersect are calculated as an intersection (intersection calculator). In the present embodiment, the line-of-sight detection device 18 is adopted as the origin of relative coordinates, but the occupant A or the occupant B may be adopted as the origin of relative coordinates.

  In step S16, the control device 8 searches for facilities including the intersection (absolute coordinates) based on the intersection (absolute coordinates) and the data input from the map data input device 6 (facility detection means).

  In step S17, the control device 8 determines whether there is a facility including the intersection (absolute coordinates) from the search result in step S16. If it is determined that there is a facility, the process proceeds to step S18. Returns to step S10.

  In step S18, the control device 8 notifies the facility including the searched intersection (absolute coordinates) as a destination candidate (notification means). This is for confirming whether or not the facility as the destination candidate is set as the actual destination (setting means). That is, it is confirmed whether or not a facility that is commonly viewed by a plurality of passengers (passenger A and passenger B) is set as a destination. At this time, the control device 8 displays a destination candidate facility and an image for confirming whether or not the facility is actually set as the destination on the display device 10 or outputs sound from the speaker 13. To confirm whether or not to set as a destination.

  In step S19, the control device 8 determines whether or not there is a setting request for setting a facility as a destination candidate as an actual destination (setting unit). When a signal indicating that a destination candidate is set as a destination is input from the remote control sensor 16, the operation switch group 7, or the microphone 15 via the remote controller 17, the control device 8 has a setting request. The process proceeds to step S20, and if the signal is not input, the process returns to step S10 without determining that there is a setting request.

  In step S20, the control device 8 sets a facility as a destination candidate as a destination (setting unit). Thereafter, the control device 8 detects the current position using the signal from the position detector 1 and the data from the map data input device 6, and optimizes the current position to the destination set in step S20. A route is automatically searched for and a guide route is set (route guide means). Then, the set guidance route is displayed superimposed on the map displayed on the display device 10 based on the data of the map data input device 6 together with the current position mark indicating the current position detected by the position detector 1. (Route guidance means).

  In this way, by using the eyes of a plurality of passengers, it is possible to suppress the possibility that a large number of destination candidate facilities appear, and it is possible to easily identify facilities that are destination candidates. In other words, facilities that are shared by multiple passengers are used as destination candidates, so the possibility of many destination candidate facilities appearing can be suppressed, and facilities that are destination candidates can be easily identified. .

  Moreover, since the facility which becomes a destination candidate can be specified without using the camera etc. which image | photograph the exterior of a vehicle, the navigation apparatus (destination candidate alerting | reporting apparatus) 100 can be comprised cheaply. Moreover, since the facility which becomes a destination candidate can be specified only by the process in the navigation device (destination candidate notification device) 100 without performing communication with the outside of the vehicle, the facility can be specified in real time. Furthermore, instead of providing a place where only the driver or only a passenger in the passenger's seat wants to go as a destination candidate facility, a place where a plurality of people on the vehicle want to go together is provided as a destination candidate facility. I can do it.

  In the present embodiment, an example in which a facility including a line-of-sight intersection (absolute coordinates) is used as a destination candidate has been described. However, the present invention is not limited to this.

  For example, in addition to a facility that includes a line-of-sight intersection (absolute coordinates), a facility (same type of facility) that has the same type (for example, a restaurant or a convenience store) as the facility may be used as a destination candidate. That is, in the determination in step S17 of FIG. 3 described above, the control device 8 determines that there is a facility including the intersection (absolute coordinates) before performing the process in step S18, the map data input device 6 The facility of the same type as the facility including the intersection (absolute coordinates) (same facility) is searched based on the data input from (facility detection means). If there is a facility of the same type (same type of facility), in step S18, in addition to the facility including the intersection (absolute coordinates), the control device 8 also uses the same type of facility (same type of facility) as a destination candidate. The process (the process after step S18) is executed in the same manner as described above. By doing in this way, in addition to the facility which a plurality of crew members look at in common, a facility of the same type as the facility (same type facility) can be used as a destination candidate.

  In addition to facilities that include the intersection (absolute coordinates) of the line of sight in this way, facilities that are the same type as the facility (for example, restaurants, convenience stores, parking lots, etc.) When there are a plurality of facilities of the same type (same type facility), a facility having the lowest cost from the current position among the plurality of facilities may be set as a destination candidate.

  That is, if it is determined in step S17 in FIG. 3 that there is a facility including the intersection (absolute coordinates), the control device 8 performs map data before performing the process in step S18 in FIG. Based on the data input from the input device 6, a facility (same type facility) of the same type as the facility including the intersection (absolute coordinates) is searched.

  Next, when there is a facility of the same type (same type facility), the control device 8 determines whether there are a plurality of such facilities. If the control device 8 determines that there is only one facility of the same type (same type of facility), in step S18 of FIG. 3, in addition to the facility including the intersection (absolute coordinates), the control device 8 of the same type A facility (same type facility) is also processed as a destination candidate in the same manner as described above (step S18 and subsequent steps).

  On the other hand, if it is determined that there are a plurality of facilities of the same type (same type of facility), the control device 8 calculates the cost of the route from the current position to each facility of the same type (facility detection means). In addition, since cost calculation is a well-known technique, description is abbreviate | omitted. Then, in step S18 of FIG. 3, the control device 8 aims at a facility having the lowest cost from the current position among the same type of facility (same type facility) in addition to the facility including the intersection (absolute coordinates) of the line of sight. As a ground candidate, processing (processing after step S18) is executed in the same manner as described above.

  In this way, in addition to the facilities commonly seen by a plurality of passengers, the facility that can be reached the fastest among the facilities of the same type (the same type of facilities) as the facility can be selected as a destination candidate. .

  In addition to the facilities that include the line-of-sight intersection (absolute coordinates), among the facilities of the same type (same types of facilities), several facilities with the lowest cost from the current position are treated as destination candidates in the same manner as described above. (Processing after step S18) may be executed.

  In the present embodiment, the example of obtaining the intersection of the lines of sight of two passengers has been described in order to set the destination candidate. However, the present invention is not limited to this. The object of the present invention can be achieved by obtaining the intersection of the lines of sight of at least two passengers, and the intersection of three or more passengers may be obtained. Further, when there are three or more occupants in the vehicle, an intersection where at least two of the lines of sight intersect may be obtained.

  DESCRIPTION OF SYMBOLS 1 Position detector, 2 Geomagnetic sensor, 3 Gyroscope, 4 Distance sensor, 5 GPS receiver, 6 Map data input device, 7 Operation switch group, 9 External memory, 10 Display apparatus, 11 Transceiver, 12 Voice controller, 13 Speaker, 14 Voice recognition device, 15 Microphone, 16 Remote control sensor, 17 Remote control terminal (remote control), 18 Eye gaze detection device, 100 Navigation device, 200 Center

Claims (6)

A destination candidate notification device that is mounted on a vehicle and informs a passenger of a destination candidate,
Line-of-sight information detection means for detecting information about the line of sight of at least two occupants riding in the vehicle;
An intersection calculation means for calculating an intersection of the eyes of each occupant using information on the eyes detected by the eye information detection means;
Facility detection means for detecting a facility including the intersection calculated by the intersection calculation means;
Informing means for informing the facility detected by the facility detecting means as a destination candidate;
A destination candidate informing device comprising:   The facility detection means detects a similar facility that is the same type of facility as the facility in addition to the facility including the intersection calculated by the intersection calculation means, and the notification means is detected by the facility detection means. The destination candidate notification device according to claim 1, wherein the same type of facility is notified as a destination candidate in addition to the facility.   When the facility detecting unit detects a plurality of the same kind of facilities, the facility detecting unit calculates a cost of a route from the current position of the vehicle to the plurality of the same kind of facilities, and detects several of the same kind of facilities from the lowest cost. 3. The object according to claim 2, wherein the informing means informs several similar facilities from the lowest cost in addition to the facilities detected by the facility detecting means as destination candidates. Land candidate notification device.   When the facility detecting means detects a plurality of the same kind of facilities, the facility detecting means calculates a cost of a route from the current position of the vehicle to the plurality of the same kind of facilities, detects the same kind of facility having the lowest cost, and the notification means The destination candidate notification device according to claim 2, wherein the destination candidate notification device notifies the same type of facility having the lowest cost in addition to the facility detected by the facility detection means as a destination candidate. The line-of-sight information detection means includes a distance from the line-of-sight information detection means to each occupant, an angle formed by a line connecting the line-of-sight information detection means and each occupant and the traveling direction of the vehicle, the line-of-sight information detection means, and each occupant The angle between the line connecting the line and the line of sight of each passenger is detected as information about the line of sight,
The intersection calculation means obtains the relative coordinates of the intersection based on either the occupant or the line-of-sight information detection device from information on the line-of-sight detected by the line-of-sight information detection means, and determines the current position of the vehicle 5. The destination according to claim 1, wherein the absolute coordinate as the intersection of the line of sight of each occupant is calculated from the relative coordinates of the intersection and the current position of the vehicle. Candidate notification device.   Setting means for setting a facility as a destination candidate notified by the notification means as a destination, and searching for a route from the current position of the vehicle to the destination set by the setting means; 6. A destination candidate notification according to claim 1, further comprising: route guidance means for performing route guidance from a current position to a destination set by the setting means. apparatus.

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