JP7070322B2 - Route guidance control device, route guidance control system, route guidance control method, and route guidance control program - Google Patents

Description

The present invention relates to a route guidance control device, a route guidance control system, a route guidance control method, and a route guidance control program.

Voice guidance is provided in the navigation device used in the vehicle. For example, voice guidance is performed a plurality of times at an intersection 300 m before, 100 m before, or immediately before an intersection where a right turn or a left turn is made on a set route.

For example, Patent Document 1 discloses a navigation device that provides voice guidance step by step before an intersection where a course change occurs.

Japanese Unexamined Patent Publication No. 2017-181150

When the voice guidance of the route is performed, the user of the navigation device may perform the voice guidance multiple times even if the voice guidance is performed once if the recognition of the actual scenery and the voice-guided information match. However, since I know the target intersection, I can turn left and right properly. On the other hand, when the voice guidance is performed, if the recognition of the actual scenery and the voice guidance information do not match, or if the voice guidance is missed, the map displayed on the display unit. By comparing the route guidance information such as, etc. with the actual scenery, we try to properly grasp the intersections, etc. that are the guidance target points. In such a state, it is necessary to wait until the next voice guidance, and during that time, the information displayed on the display unit may be reviewed many times, which may impair safety.

Therefore, it is an object of the present invention to provide a route guidance device, a route guidance control system, a route guidance control method, and a route guidance control program capable of appropriately grasping voice guidance at a guidance target point.

The route guidance control device of the present invention includes a route guidance control unit that provides route guidance, a display control unit that displays a route guidance image by the route guidance control unit on the display unit, and the display unit that displays the route guidance image. The route guidance image after the line-of-sight detection control unit that detects the user's line of sight to the user, the voice guidance control unit that performs voice guidance based on the processing of the route guidance control unit, and the voice guidance by the voice guidance control unit are executed. It is provided with a guidance control unit that causes the voice guidance control unit to perform voice guidance again when the user's line of sight to the display unit displaying the above is a predetermined condition.

The route guidance control system of the present invention includes the route guidance control device of the present invention, a storage unit for storing map information, a line-of-sight detection unit for detecting the line of sight of the user, and a voice output unit for outputting the voice guidance. To prepare for.

The route guidance control method of the present invention includes a route guidance step for performing route guidance, a display step for displaying a route guidance image by the route guidance step on a display unit, and a user for the display unit displaying the route guidance image. The display unit displaying the route guidance image after the line-of-sight detection step for detecting the line of sight, the voice guidance step for performing voice guidance based on the processing of the route guidance step, and the voice guidance by the voice guidance step are executed. Includes a guidance step that causes the voice guidance step to perform voice guidance again when the user's line of sight to the user is a predetermined condition.

The route guidance control program of the present invention includes a route guidance step for performing route guidance, a display step for displaying a route guidance image by the route guidance step on a display unit, and a user for the display unit displaying the route guidance image. The display unit displaying the route guidance image after the line-of-sight detection step for detecting the line of sight, the voice guidance step for performing voice guidance based on the processing of the route guidance step, and the voice guidance by the voice guidance step are executed. When the user's line of sight to the user is a predetermined condition, the computer is made to execute the guidance step of causing the voice guidance step to perform voice guidance again.

According to the present invention, it is possible to appropriately grasp the voice guidance at the guidance target point.

FIG. 1 is a block diagram showing an example of the configuration of the route guidance control system according to the first embodiment. FIG. 2 is a diagram for explaining a method of detecting a user's line of sight. FIG. 3 is a diagram for explaining a method of detecting that the line of sight of the user is directed to the display unit. FIG. 4 is a flowchart showing an example of the processing flow of the route guidance control device according to the first embodiment. FIG. 5 is a flowchart showing an example of the processing flow of the route guidance control device according to the first embodiment. FIG. 6 is a block diagram showing an example of the configuration of the route guidance control system according to the second embodiment. FIG. 7 is a flowchart showing an example of the processing flow of the route guidance control device according to the second embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited to this embodiment, and when there are a plurality of embodiments, the present invention also includes a combination of the respective embodiments.

[First Embodiment]
The configuration of the route guidance control system according to the first embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing an example of the configuration of the route guidance control system according to the first embodiment.

As shown in FIG. 1, the route guidance control system 1 includes a storage unit 10, a GPS (Global Positioning System) receiving unit 20, a line-of-sight detection unit 30, a voice output unit 40, a display unit 50, and route guidance control. The device 100 is provided.

The route guidance control system 1 is a so-called navigation device. The route guidance control system 1 may be a navigation device pre-mounted on the vehicle, a navigation device retrofitted to the vehicle, or various devices having a navigation function.

The storage unit 10 stores, for example, a program for realizing each unit of the route guidance control device 100. In this case, the route guidance control device 100 realizes the functions of each unit by expanding and executing the program stored in the storage unit 10. The storage unit 10 is realized by, for example, a semiconductor memory element such as a RAM (Random Access Memory), a ROM (Read Only Memory), or a flash memory (Flash Memory), or a storage device such as a hard disk, a solid state drive, or an optical disk. Can be done. The storage unit 10 may be composed of a plurality of different memories or the like. The storage unit 10 stores, for example, the map information 11. The map information 11 includes, for example, information about roads and facilities.

The GPS receiving unit 20 is composed of a GPS receiving circuit, a GPS receiving antenna, and the like, and receives a GPS signal. The GPS receiving unit 20 outputs the received GPS signal to the current position information acquisition unit 122.

The line-of-sight detection unit 30 photographs, for example, the driver's face in order to detect the driver's line of sight. The line-of-sight detection unit 30 is arranged so as to face the driver's seat. Specifically, the line-of-sight detection unit 30 is installed on, for example, an instrument panel, a rear-view mirror for checking the rear, and the like. The line-of-sight detection unit 30 photographs, for example, the driver's face after the route guidance voice is output while driving. In this case, the line-of-sight detection unit 30 detects, for example, the driver's line of sight in the forward direction or the driver's line of sight to the display unit 50. The line-of-sight detection unit 30 outputs, for example, a visible light image of the driver's face to the line-of-sight detection control unit 123. The line-of-sight detection unit 30 is not particularly limited, and can be realized by, for example, a visible light camera or an infrared camera.

The voice output unit 40 outputs various sounds including voice. The voice output unit 40 outputs voice guidance regarding the route to the destination to the driver, for example, according to the control from the voice guidance control unit 124. The audio output unit 40 can be realized, for example, by a speaker installed for an audio device in a vehicle.

The display unit 50 displays various images. The display unit 50 displays the route guidance image according to the control from the display control unit 126, for example. The display unit 50 is arranged in front of the driver who is driving the own vehicle, for example. The display unit 50 is a display including, for example, a liquid crystal display (LCD) or an organic EL (Organic Electro-Luminescence) display.

The route guidance control device 100 includes a route guidance control unit 121, a current position information acquisition unit 122, a line-of-sight detection control unit 123, a voice guidance control unit 124, a guidance control unit 125, and a display control unit 126. There is. The route guidance control unit 121, the current position information acquisition unit 122, the line-of-sight detection control unit 123, the voice guidance control unit 124, the guidance control unit 125, and the display control unit 126 are connected to each other via the bus 110. ing. Such a route guidance control device 100 can be realized by, for example, an electronic circuit including a CPU (Central Processing Unit).

The route guidance control unit 121 executes, for example, route guidance. For example, the route guidance control unit 121 executes route guidance to the destination instructed by the user based on the map information 11 stored in the storage unit 10. In this case, the route guidance control unit 121 acquires information regarding the current position from the current position information acquisition unit 122. As a result, the route guidance control unit 121 executes the route from the current position to the destination based on the map information 11.

The route guidance control unit 121 outputs, for example, a control signal for executing voice guidance of the route from the current position to the destination to the voice guidance control unit 124. The route guidance control unit 121 controls voice guidance to control a control signal for executing the first voice guidance when the distance to the guidance target point such as a right turn or a left turn is a predetermined first distance (for example, 300 m). Output to unit 124. The route guidance control unit 121 controls voice guidance for controlling a control signal for executing the second voice guidance at a second distance (for example, 100 m) in which the distance to the guidance target point is shorter than the first distance. Output to unit 124. As a result, the route guidance control unit 121 causes the voice guidance control unit 124 to execute voice guidance a plurality of times at the guidance target point. For example, the route guidance control unit 121 may acquire the names of buildings and facilities existing at the guidance target points such as right turn and left turn from the map information 11 and output them to the voice guidance control unit 124.

The route guidance control unit 121 outputs a control signal for displaying the route guidance image of the route from the current position to the destination on the display unit 50 to the display control unit 126.

The current position information acquisition unit 122 acquires the current position information. The current position information acquisition unit 122 acquires, for example, a GPS signal from the GPS receiving unit 20, and acquires the current position information based on the acquired GPS signal. The current position information acquisition unit 122 outputs the acquired current position information to the route guidance control unit 121.

The line-of-sight detection control unit 123 detects the direction of the driver's line of sight. The line-of-sight detection control unit 123 detects the direction of the driver's line of sight, for example, based on the driver's visible light image or infrared light image received from the line-of-sight detection unit 30.

A method of detecting the driver's line of sight by the line-of-sight detection control unit 123 will be described with reference to FIG. FIG. 2 is a diagram for explaining a method in which the line-of-sight detection control unit 123 detects the line-of-sight of the driver.

As shown in FIG. 2, the line-of-sight detection unit 30 photographs, for example, the face of the driver U (user). Then, the line-of-sight detection unit 30 outputs a visible light image to the line-of-sight detection control unit 123 as shown in FIG. Specifically, as will be described later, the line-of-sight detection control unit 123 detects the direction V of the line-of-sight of the driver U by detecting feature points such as the inner corners of the eyes and the pupil of the driver U's eyes 130. As another method, the line-of-sight detection unit 30 irradiates the face of the driver U with infrared rays to capture an infrared image. Then, the line-of-sight detection control unit 123 identifies the range of both eyes of the driver U from the infrared image, and detects the direction V of the line-of-sight of the driver U from the corneal reflex and the pupil position.

For example, a method of detecting whether or not the line-of-sight detection control unit 123 is visually recognizing the display unit 50 will be described with reference to FIG. FIG. 3 is a diagram for explaining a method of detecting whether or not the line-of-sight detection control unit 123 is visually recognizing the display unit 50.

As shown in FIG. 3, for example, the line-of-sight detection control unit 123 detects the direction V of the line-of-sight based on the eyes 130 of the driver U. In this case, for example, when the display unit 50 is provided diagonally below the driver U, and the position of the direction V of the line of sight is within a predetermined range L diagonally below a predetermined range, the driver It can be detected that U is visually recognizing the display unit 50. Here, the predetermined range L may be set based on, for example, the position of the head when the driver U is driving and the position where the display unit 50 is installed.

For example, when the line-of-sight detection control unit 123 detects the line-of-sight of the driver under the predetermined conditions for the display unit 50 displaying the route guidance image after the voice guidance to the driver is performed, the line-of-sight detection control unit 123 executes the voice guidance again. A control signal for causing the motion is output to the guidance control unit 125. The predetermined condition means, for example, a condition in which it is determined that the driver is at a loss for voice guidance. The state in which the driver is at a loss means, for example, that the line of sight is directed to the display unit 50 a plurality of times within a predetermined period, or the front and the display unit 50 are alternately visually recognized or displayed within a predetermined period. It means to watch the part 50. The predetermined period is not particularly limited, but is, for example, several seconds (for example, within 2 seconds). The state in which the driver is determined to be lost is not limited to these operations, and other operations may be arbitrarily set. The line-of-sight detection control unit 123 grasps whether or not voice guidance has been performed based on the control signal output by the voice guidance control unit 124. In other words, the line-of-sight detection control unit 123 detects the line-of-sight of the driver under predetermined conditions taken by the line-of-sight detection unit 30 according to the control signal output by the voice guidance control unit 124.

The voice guidance control unit 124 outputs voice guidance of the route from the current position to the destination from the voice output unit 40, for example, based on the control signal output from the route guidance control unit 121. Specifically, for example, when the own vehicle reaches a point 300 m before the guidance target point (for example, a left turn point), the voice guidance control unit 124 voices voice guidance such as "300 m ahead to the left". Output from the output unit 40.

For example, when the voice guidance control unit 124 receives a control signal from the guidance control unit 125 to execute the voice guidance again, the voice guidance control unit 124 outputs the voice guidance again from the voice output unit 40. In this case, the voice guidance control unit 124 outputs the voice guidance again from the voice output unit 40, for example, "I have previously guided you to the left direction 300 m ahead". Here, the voice guidance control unit 124 may output, for example, the distance from the voice guidance point again to the guidance target point from the voice output unit 40. For example, when traveling 40 m from the first voice guidance, the voice guidance control unit 124 outputs another voice guidance of the updated distance such as "260 m ahead to the left" from the voice output unit 40. May be good. Further, when the voice guidance control unit 124 is 40 m ahead of the first voice guidance, the voice guidance control unit 124 waits until the distance from the current location to the guidance target point is a good distance, and then outputs the voice guidance again. It may be output from the unit 40. For example, the voice guidance control unit 124 does not perform voice guidance at a point where the distance from the current location to the guidance target point is 260 m, and at the point where the distance to the guidance target point is 200 m, "200 m ahead is to the left". The voice guidance such as is may be output from the voice output unit 40 again. For example, the voice guidance control unit 124 outputs a control signal including information to that effect to the line-of-sight detection control unit 123 after executing the first voice guidance.

For example, when the voice guidance control unit 124 receives information such as a building name existing at a guidance target point and a facility name from the route guidance control unit 121 from the route guidance control unit 121, the voice guidance control unit 124 performs the building again in the voice guidance. Voice guidance may be performed based on the name or facility name. For example, when the AA bank exists at the guidance target point, the voice guidance control unit 124 outputs another voice guidance such as "The next intersection where the AA bank is located is to the left" from the voice output unit 40. May be good.

For example, in the voice guidance again, the voice guidance control unit 124 may execute the voice guidance so that the driver can easily grasp the content of the guidance than the first voice guidance. In this case, the voice guidance control unit 124 performs voice guidance by, for example, changing the loudness of the voice from the first voice guidance or changing the voice guidance speed from the first voice guidance. You may do it. For example, in the voice guidance again, the voice guidance control unit 124 may execute the route guidance by changing the voice quality and the voice color.

The guidance control unit 125 outputs a control signal for executing the voice guidance again to the voice guidance control unit 124. Specifically, when the guidance control unit 125 satisfies a predetermined condition, for example, when the driver's line of sight to the display unit 50 displaying the route guidance image satisfies the predetermined condition after the voice guidance by the voice guidance control unit 124 is executed. , A control signal is input from the line-of-sight detection control unit 123. Then, the guidance control unit 125 outputs a control signal for executing the voice guidance again to the voice guidance control unit 124 according to the control signal from the line-of-sight detection control unit 123.

The display control unit 126 displays various information on the display unit 50. The display control unit 126 displays the route guidance image on the display unit 50, for example, based on the control signal output from the route guidance control unit 121.

Next, the process of the route guidance control device according to the first embodiment will be described with reference to FIG. FIG. 4 is a flowchart showing an example of the processing flow of the route guidance control device according to the first embodiment.

First, the route guidance control device 100 determines whether or not voice guidance is required at the guidance target point (step S101). The necessity of voice guidance is based on, for example, the setting of whether or not to use voice guidance in route guidance. Furthermore, it is based on the setting of whether or not the guidance target point is a guidance target point that requires voice guidance. Specifically, voice guidance is provided for points where it is necessary to clearly indicate the points, such as other roads that intersect with the road on which the vehicle is traveling, and intrusion points such as parking lots and destinations adjacent to the road on which the vehicle is traveling. Needs.

When voice guidance is not required (“No” in step S101), the route guidance control device 100 ends the process described in FIG. On the other hand, when voice guidance is required (“Yes” in step S101), the route guidance control device 100 proceeds to step S102.

In step S102, the route guidance control device 100 determines whether or not it is the start timing of the first voice guidance. Specifically, the route guidance control device 100 determines whether or not it is the start timing of the first voice guidance based on the current position information acquired by the current position information acquisition unit 122.

If it is not the start timing of the first voice guidance (“No” in step S102), the route guidance control device 100 repeatedly executes the process of step S102 and waits until the start timing of the first voice guidance. On the other hand, when it is the first voice guidance timing (“Yes” in step S102), the route guidance control device 100 proceeds to step S103.

Next, the route guidance control device 100 executes the first voice guidance to the driver by outputting voice from the voice output unit 40 (step S103). Specifically, the route guidance control device 100 outputs the first voice guidance from the voice output unit 40 by the voice guidance control unit 124. Then, the route guidance control device 100 proceeds to step S104.

Next, in step S104, the route guidance control device 100 determines whether or not a predetermined time has elapsed since the first voice guidance was executed.

If the predetermined time has not elapsed (“No” in step S104), the route guidance control device 100 proceeds to step S105. On the other hand, when the predetermined time has elapsed (“Yes” in step S104), the route guidance control device 100 proceeds to step S107.

In step S105, the route guidance control device 100 determines whether or not the driver has detected the line of sight to the display unit 50 a plurality of times when a predetermined time has not elapsed since the first voice guidance was executed. .. Specifically, the route guidance control device 100 detects and determines the driver's line of sight from the line-of-sight detection unit 30 by the line-of-sight detection control unit 123.

When the line of sight to the display unit 50 of the driver is not detected a plurality of times (“No” in step S105), the route guidance control device 100 returns to step S104. That is, the route guidance control device 100 repeatedly executes determination of the line of sight of the driver's display unit 50 from the time when the first voice guidance is executed until a predetermined time elapses. On the other hand, when the line of sight to the display unit 50 of the driver is detected a plurality of times (“Yes” in step S105), the route guidance control device 100 proceeds to step S106.

Next, the route guidance control device 100 executes voice guidance again to the driver (step S106). Specifically, the route guidance control device 100 controls the voice guidance control unit 124 by the guidance control unit 125, so that the voice guidance again is output from the voice output unit 40. Then, the route guidance control device 100 proceeds to step S107.

In step S107, the route guidance control device 100 determines whether or not it is the start timing of the second voice guidance. Specifically, the route guidance control device 100 acquires the current position by the current position information acquisition unit 122, and determines whether or not it is the start timing of the second voice guidance.

If it is not the start timing of the second voice guidance (“No” in step S107), the route guidance control device 100 repeats the process of step S107 and waits until the start timing of the second voice guidance. On the other hand, when it is the second voice guidance timing (“Yes” in step S107), the route guidance control device 100 proceeds to step S108.

Next, the route guidance control device 100 executes the second voice guidance to the driver by outputting the voice from the voice output unit 40 (step S108). Then, the route guidance control device 100 ends the process of FIG.

Next, a modified example of the processing of the route guidance control device according to the first embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing an example of the processing flow of the route guidance control device according to the first embodiment.

Since steps S201 to S204 shown in FIG. 5 are the same as steps S101 to S104 shown in FIG. 4, description thereof will be omitted.

After step S204, the route guidance control device 100 detects whether or not the driver has visually recognized the display unit 50 and the front alternately a plurality of times.

When it is not detected that the driver visually recognizes the display unit 50 and the front alternately a plurality of times (“No” in step S205), the route guidance control device 100 returns to step S204. On the other hand, when it is detected that the driver visually recognizes the display unit 50 and the front alternately a plurality of times (“Yes” in step S205), the process proceeds to step S206.

Since steps S206 to S208 shown in FIG. 5 are the same as steps S106 to S108 shown in FIG. 4, description thereof will be omitted.

As described above, in the first embodiment, after the first voice guidance is executed, when the direction of the driver's line of sight is in a predetermined direction, before the second voice guidance is executed, The voice guidance can be executed again. Thereby, in the first embodiment, the driver can appropriately grasp the guidance target point.

[Second Embodiment]
Next, the route guidance control system according to the second embodiment will be described with reference to FIG. FIG. 6 is a block diagram showing a configuration of the route guidance control system 1 according to the second embodiment.

As shown in FIG. 6, the route guidance control system 1A includes a storage unit 10, a GPS reception unit 20, a line-of-sight detection unit 30, a voice output unit 40, a display unit 50, a camera 60, and a route guidance control device. It is equipped with 100A. The route guidance control device 100A includes a route guidance control unit 121, a current position information acquisition unit 122, a line-of-sight detection control unit 123, a voice guidance control unit 124, a guidance control unit 125, a display control unit 126, and shooting data. It includes an acquisition unit 127 and a shooting data recognition unit 128. That is, the route guidance control system 1A includes a camera 60, and the route guidance control device 100A includes a shooting data acquisition unit 127 and a shooting data recognition unit 128. Is different.

The camera 60 captures, for example, a vehicle traveling in front of the own vehicle. In this case, the camera 60 can be realized by, for example, a general front camera. The camera 60 outputs the shooting data of the vehicle traveling in front of the own vehicle to the shooting data acquisition unit 127.

The shooting data acquisition unit 127 acquires shooting data shot by the camera 60 from the camera 60, for example. The shooting data acquisition unit 127 outputs, for example, the shooting data acquired from the camera 60 to the shooting data recognition unit 128.

The shooting data recognition unit 128 recognizes the traveling status of the preceding vehicle based on the shooting data, for example. Specifically, the shooting data recognition unit 128 recognizes, for example, the traveling status of the preceding vehicle at the guidance target point. The traveling situation of the preceding vehicle at the guidance target point includes, for example, a situation in which the preceding vehicle goes straight, turns left, or turns right at the guidance target point. The traveling condition of the preceding vehicle may be recognized based on, for example, the traveling lane in which the preceding vehicle is traveling, the blinking of the blinker of the preceding vehicle, the degree of deceleration in the vicinity of the guidance target point (change in acceleration), and the like. The shooting data recognition unit 128 outputs the recognition result of the traveling condition of the preceding vehicle to the voice guidance control unit 124.

The voice guidance control unit 124 outputs, for example, voice guidance based on the traveling condition of the preceding vehicle from the voice output unit 40. The voice guidance control unit 124 receives, for example, a recognition result received from the photographing data recognition unit 128 after receiving a control signal for executing voice guidance again, when the recognition result is the same as the traveling direction of the own vehicle. The voice guidance based on the traveling condition of the preceding vehicle is output from the voice output unit 40. For example, when the preceding vehicle makes a left turn and the own vehicle also makes a left turn at the guidance target point, the voice guidance control unit 124 provides voice guidance such as "Please follow the preceding vehicle" from the voice output unit 40. Output.

The process of the route guidance control device 100A according to the second embodiment will be described with reference to FIG. 7. FIG. 7 is a flowchart showing an example of the processing flow of the route guidance control device 100A according to the second embodiment.

Since steps S301 to S305 shown in FIG. 7 are the same as steps S101 to S105 shown in FIG. 4, the description thereof will be omitted.

After step S305, the route guidance control device 100A determines whether or not the traveling direction of the preceding vehicle is the same as that of the own vehicle. Specifically, the route guidance control device 100A determines whether or not the traveling direction of the preceding vehicle is the same as that of the own vehicle by the photographing data recognition unit 128.

When the traveling direction of the preceding vehicle is not the same as the traveling direction of the own vehicle (“No” in step S306), the route guidance control device 100A proceeds to step S307, and the voice is repeated again as in step S106 shown in FIG. Guidance is executed (step S307). Then, the route guidance control device 100A proceeds to step S309. Since step S309 and step S310 shown in FIG. 7 are the same as steps S107 and S108 shown in FIG. 4, respectively, description thereof will be omitted. After step S310, the route guidance control device 100A ends the process of FIG. 7.

On the other hand, in step S306, when the traveling direction of the preceding vehicle is the same as the traveling direction of the own vehicle (“Yes” in step S306), the route guidance control device 100A proceeds to step S308.

The route guidance control device 100A executes voice guidance again based on the preceding vehicle (step S308). Specifically, the route guidance control device 100A controls the voice guidance control unit 124 that receives the recognition result of the preceding vehicle from the photographing data recognition unit 128 by the guidance control unit 125, so that the route guidance control device 100A can be used again based on the preceding vehicle. The voice guidance is output from the voice output unit 40. Then, the route guidance control device 100A ends the process of FIG. 7.

As described above, in the second embodiment, after the first voice guidance is executed, when the direction of the driver's line of sight is in a predetermined direction, before the second voice guidance is executed, It is possible to execute the voice guidance again based on the preceding vehicle. As a result, the driver can more appropriately grasp the guidance target point.

In the second embodiment, the recognition of the running state of the preceding vehicle is performed based on the shooting data captured by the camera 60, but the running state of the preceding vehicle may be recognized by using another method. For example, by using vehicle-to-vehicle communication, another vehicle traveling in the same direction as the own vehicle may be specified. In this case, when the vehicle is in front of a predetermined distance, for example, 300 m from the guidance target point, a request is made to transmit the traveling direction information to other vehicles in the vicinity, and the traveling of the own vehicle is performed based on the traveling direction information transmitted based on the request. Identify other vehicles traveling in the same direction as the direction. In this case, the voice guidance control unit 124 can perform voice guidance such as "Please follow the vehicle in front of two vehicles". Further, the traveling direction information may include information that identifies the characteristics of another vehicle. In this case, the voice guidance control unit 124 can perform voice guidance such as "Please follow the preceding red vehicle".

Further, in each of the above-described embodiments, the first voice guidance and the second voice guidance have been described, but the present invention may be performed once or twice or more. Is applicable. For example, in the case of performing voice guidance once, the driver's line of sight is a predetermined condition after the first voice guidance until the guidance target point is reached or before the guidance target point is reached a predetermined distance. If it becomes, the voice guidance may be performed again.

Further, in each of the above-described embodiments, the processes of step S104, step S204, and step S304 may be used as a determination as to whether or not the vehicle has traveled a predetermined distance, instead of determining whether or not a predetermined time has elapsed. A judgment as to whether or not the vehicle has traveled a predetermined distance may be added to the judgment as to whether or not the vehicle has passed. In this case, the predetermined distance is the distance between the timing of performing the first voice guidance and the timing of starting the second voice guidance, or the distance between the timing of starting the first voice guidance and the guidance target point. The distance. This distance is before the timing to start the second voice guidance or the guidance target point, and the timing to start the second voice guidance or the guidance to the guidance target point is not continuously guided. It is this distance.

Although the embodiments of the present invention have been described above, the embodiments are not limited by the contents of these embodiments. Further, the above-mentioned components include those that can be easily assumed by those skilled in the art, those that are substantially the same, that is, those in a so-called equal range. Furthermore, the components described above can be combined as appropriate. Further, various omissions, replacements or changes of the components can be made without departing from the gist of the above-described embodiment.

1,1A Route guidance control system 10 Storage unit 11 Map information 20 GPS reception unit 30 Line-of-sight detection unit 40 Voice output unit 50 Display unit 60 Camera 100, 100A Route guidance control device 110 Bus 121 Route guidance control unit 122 Current position information acquisition unit 123 Line-of-sight detection control unit 124 Voice guidance control unit 125 Guidance control unit 126 Display control unit 127 Imaging data acquisition unit 128 Imaging data recognition unit

Claims (7)

A route guidance control unit that provides route guidance and
A display control unit that displays a route guidance image by the route guidance control unit on the display unit,
A line-of-sight detection control unit that detects the user's line of sight to the display unit displaying the route guidance image, and a line-of-sight detection control unit.
A voice guidance control unit that provides voice guidance based on the processing of the route guidance control unit,
A shooting data acquisition unit that acquires shooting data of the preceding vehicle from a camera that shoots the preceding vehicle,
A preceding vehicle recognition unit that recognizes the traveling status of the preceding vehicle based on the shooting data,
After the voice guidance by the voice guidance control unit is executed , the preceding vehicle recognition unit advances the preceding vehicle when the user's line of sight to the display unit displaying the route guidance image is a predetermined condition. When it is recognized that the direction is the same as that of the own vehicle, the voice guidance control unit causes the voice guidance control unit to perform voice guidance again including information on the traveling direction of the preceding vehicle .
A route guidance control device. The voice guidance control unit provides voice guidance indicating the distance relationship with the guidance target point.
The guidance control unit has a predetermined condition that the user's line of sight to the display unit displaying the route guidance image is a predetermined condition after the voice guidance control unit executes voice guidance indicating a distance relationship with the guidance target point. When, the voice guidance control unit is made to perform voice guidance again indicating the updated distance relationship with the guidance target point.
The route guidance control device according to claim 1. When the guidance control unit detects that the user has seen the display unit a plurality of times within a predetermined period after the voice guidance by the voice guidance control unit is executed, the voice guidance control unit provides voice guidance to the voice guidance control unit. To do it again,
The route guidance control device according to claim 1 or 2. When the guidance control unit detects that the user has seen the display unit and the front a plurality of times within a predetermined period after the voice guidance by the voice guidance control unit is executed, the voice guidance control unit informs the voice guidance control unit. Have voice guidance performed again,
The route guidance control device according to claim 1 or 2. The route guidance control device according to any one of claims 1 to 4 .
A storage unit that stores map information,
The line-of-sight detection unit that detects the user's line of sight,
A voice output unit for outputting the voice guidance is provided.
Route guidance control system. A route guidance step for route guidance and
A display step for displaying a route guidance image by the route guidance step on a display unit, and a display step.
A line-of-sight detection step for detecting the user's line of sight to the display unit displaying the route guidance image, and
A voice guidance step that provides voice guidance based on the processing of the route guidance step,
A shooting data acquisition step of acquiring shooting data of the preceding vehicle from a camera that shoots the preceding vehicle, and
A preceding vehicle recognition step for recognizing the traveling status of the preceding vehicle based on the shooting data,
After the voice guidance by the voice guidance step is executed , the traveling direction of the preceding vehicle in the preceding vehicle recognition step when the line of sight of the user to the display unit displaying the route guidance image is a predetermined condition. When it is recognized that the vehicle is the same as the own vehicle, a guidance step for re-performing voice guidance including information on the traveling direction of the preceding vehicle, and a guidance step.
The route guidance control method executed by the route guidance control device. A route guidance step for route guidance and
A display step for displaying a route guidance image by the route guidance step on a display unit, and a display step.
A line-of-sight detection step for detecting the user's line of sight to the display unit displaying the route guidance image, and
A voice guidance step that provides voice guidance based on the processing of the route guidance step,
A shooting data acquisition step of acquiring shooting data of the preceding vehicle from a camera that shoots the preceding vehicle, and
A preceding vehicle recognition step for recognizing the traveling status of the preceding vehicle based on the shooting data,
After the voice guidance by the voice guidance step is executed , the traveling direction of the preceding vehicle in the preceding vehicle recognition step when the line of sight of the user to the display unit displaying the route guidance image is a predetermined condition. When it is recognized that the vehicle is the same as the own vehicle, a guidance step for re-performing voice guidance including information on the traveling direction of the preceding vehicle, and a guidance step.
A route guidance control program that allows a computer to execute.

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