WO2022102081A1

WO2022102081A1 - Notification device, notification method, and program for notification

Info

Publication number: WO2022102081A1
Application number: PCT/JP2020/042436
Authority: WO
Inventors: 瑞基友野
Original assignee: パイオニア株式会社
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2022-05-19

Abstract

Provided is a notification device and the like capable of preventing, for example, occurrence of an accident due to an unwanted driving operation in relation to another vehicle traveling in front.　The present invention comprises a sound guidance unit 2 that issues, by sound in the own vehicle, a notification with details that depend on time or distance from the current position of the own vehicle to a point of separation between an own vehicle route and a front vehicle route of another vehicle moving in front of the own vehicle.

Description

Notification device, notification method and notification program

This application belongs to the technical field of a notification device, a notification method, and a notification program. More specifically, it belongs to the technical field of a notification device and a notification method for performing notification in a moving body such as a vehicle, and a notification program used in the notification device.

In recent years, navigation devices that are mounted on vehicles and provide guidance regarding their movement to their passengers have become common. Guidance by such a navigation device may be performed in relation to another vehicle moving in front of the vehicle. As a prior art document that discloses an example of such a prior art, there is, for example, the technique described in Patent Document 1 below.

In the technique described in Patent Document 1, when a route bus as another vehicle is running in front of the current position of the vehicle, it is determined whether or not the route bus stops at the bus stop in front of the vehicle. When it is determined that the route bus stops at the bus stop, it is configured to support the change of lane.

Japanese Unexamined Patent Publication No. 2019-158809

However, when the route bus as described above is traveling ahead on a road having only one lane on each side, the route bus is generally at a low speed, so that the following vehicle must also travel at the slow speed. It will not be. In such a case, the passengers (especially the driver) may be dissatisfied or frustrated if they know how long the low-speed driving will continue and how the following vehicle should drive in such a situation. It will be resolved, and as a result, it will lead to safe driving after that.

Therefore, this application was made in view of the above problems and requests, and one example of the problem is the occurrence of accidents due to unnecessary driving operations in relation to other vehicles traveling in front. It is an object of the present invention to provide a notification device and a notification method that can be prevented, and a notification program used in the notification device.

In order to solve the above problems, the invention according to claim 1 is a first moving body route in which the first moving body moves, and another moving body moving in front of the first moving body. Based on the second moving body route to which the second moving body moves, the distance or time from the current position of the first moving body to the separation point between the first moving body route and the second moving body route. The first moving body includes a detecting means for detecting the above, and a notifying means for notifying the contents corresponding to the detected distance or time in the first moving body.

In order to solve the above problems, the invention according to claim 8 is a guidance method executed in a guidance device including a detection means and a notification means, wherein the first moving body moves. The first moving body route and the second moving body route are based on the body route and the second moving body route to which the second moving body, which is another moving body moving in front of the first moving body, moves. The detection step of detecting the distance or time from the current position of the first moving body to the point where the moving body route is separated by the detecting means, and the notification of the contents corresponding to the detected distance or time are described above. The notification step including the notification step performed in the first moving body by the notification means.

In order to solve the above-mentioned problems, the invention according to claim 9 uses the computer to move the computer on a first moving body route to which the first moving body moves and another movement moving in front of the first moving body. From the current position of the first moving body to the point where the first moving body route and the second moving body route are separated based on the second moving body route to which the second moving body which is a body moves. The detection means for detecting the distance or time of the above, and the notification means for the contents corresponding to the detected distance or time are made to function as the notification means for performing in the first moving body.

It is a block diagram which shows the outline structure of the notification device of an embodiment. It is a block diagram which shows the outline structure of the navigation device of an Example. It is a flowchart which shows the guidance process of an Example. It is a conceptual diagram which shows the guidance process of an Example.

Next, a mode for carrying out the present application will be described with reference to FIG. Note that FIG. 1 is a block diagram showing an outline configuration of the notification device of the embodiment.

As shown in FIG. 1, the notification device S of the embodiment includes a detection means 1 and a notification means 2.

In this configuration, the detection means 1 is a first moving body route to which the first moving body moves, and a second moving body to which the second moving body, which is another moving body moving in front of the first moving body, moves. Based on the route, the distance or time from the current position of the first moving body to the separation point between the first moving body route and the second moving body route is detected.

Then, the notification means 2 notifies the contents corresponding to the distance or time detected by the detection means 1 in the first moving body.

As described above, according to the operation of the guidance device S of the embodiment, it corresponds to the distance or time from the current position of the first moving body to the separation point between the first moving body route and the second moving body route. The content is notified in the first moving body.

Therefore, for example, it is possible to prevent the occurrence of an accident due to an unnecessary act in the first mobile body based on the relationship between the routes of the first mobile body and the second mobile body.

Next, specific examples corresponding to the above-described embodiments will be described with reference to FIGS. 2 to 4. It should be noted that the embodiments described below describe the present application as the guidance process in the navigation device that guides the movement of the vehicle as an example of the moving body of the embodiment along a route preset as the vehicle should move. It is an example when it is applied. In the following description, the vehicle equipped with the navigation device of the embodiment is referred to as "own vehicle".

Further, FIG. 2 is a block diagram showing an outline configuration of the navigation device of the embodiment, FIG. 3 is a flowchart showing the guidance process of the embodiment, and FIG. 4 is a conceptual diagram showing the guidance process. At this time, in FIG. 2, the same member number as each component in the notification device S is used for each of the components of the embodiment corresponding to each component in the notification device S of the embodiment shown in FIG.

As shown in FIG. 2, the navigation device T of the embodiment mounted on the own vehicle includes a processing unit 10 including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. A non-volatile recording unit 11 consisting of an HDD (Hard Disc Drive) or SSD (Solid State Drive), an operation unit 12 consisting of an operation button or a remote control, and a CCD (Charge Coupled Device) or CMOS (Complementary Metal-Oxide-). Semiconductor) A camera 13 composed of an image pickup element and the like, a sensor unit 14 constituting a GNSS (Global Navigation Satellite System) system or a self-sustaining navigation system, a display 15 composed of a liquid disk display and the like, a speaker 16 and an interface 17. It is configured.

Further, the processing unit 10 is composed of a detection unit 1, a voice guidance unit 2, and a guidance control unit 3. At this time, the detection unit 1, the voice guidance unit 2, and the guidance control unit 3 may be realized by a hardware logic circuit constituting the processing unit 10, or a program corresponding to a flowchart showing the guidance processing of the embodiment described later. May be realized by software by reading from the recording unit 11 and executing the above. The processing unit 10 corresponds to an example of the notification device S of the embodiment, an example of the "state detection means" of the present application, and an example of the "moving path detecting means", respectively, and the detection unit 1 corresponds to an example of the detection means 1 of the embodiment. The voice guidance unit 2 and the speaker 16 correspond to an example of the notification means 2 of the embodiment.

In the above configuration, the above-mentioned program, map data, voice data, etc. necessary for the guidance processing of the embodiment are non-volatilely recorded in the recording unit 11, and are read out by the processing unit 10 as necessary. Further, under the control of the processing unit 10, the camera 13 sets the image pickup range in front of or behind the vehicle, the inside of the vehicle, or the like, and outputs image data corresponding to the image pickup result to the processing unit 10. Further, the sensor unit 1 detects the current position, speed, traveling direction, etc. of the own vehicle using the GNSS or the like under the control of the processing unit 10, generates detection data indicating the detection result, and processes the processing unit 10. Output to.

On the other hand, the speaker 16 emits a voice such as a guidance voice of the embodiment under the control of the processing unit 10, and the display 15 is a map necessary for the guidance processing of the embodiment under the control of the processing unit 10. Etc. are displayed. Further, the interface 17 controls the exchange of data such as traffic jam information necessary for the guidance processing of the embodiment with an external network such as the Internet under the control of the processing unit 10. As a result, the processing unit 10 controls and executes the processing as the navigation device T including the guidance processing of the embodiment while controlling each member such as the recording unit 11 constituting the navigation device T.

Here, the guidance process of the embodiment is a guidance process in which a route to a destination or the like desired by a passenger of the own vehicle is preset, and the processing unit 10 and the guidance control unit 3 thereof are the camera 13. By controlling the sensor unit 14 and the like, the movement of the own vehicle along the route is guided by the guidance voice from the speaker 16 or the display on the display 15. At this time, the detection unit 1 of the processing unit 10 determines whether or not another vehicle is moving in the same direction on the road immediately ahead of the own vehicle, for example, using image data from the camera 13. In the following description, another vehicle moving in the same direction on the road in front of the vehicle is referred to as a "forward vehicle". At this time, the fact that the vehicle in front is moving means that the route to which the vehicle in front should move is preset (for example, when the vehicle in front is a fixed-route bus), the route of the vehicle in front (hereinafter,). , The route is referred to as "forward vehicle route") and the above route set for the own vehicle (hereinafter, the relevant route is referred to as "own vehicle route") are the same at the present time. In this case, the detection unit 1 acquires route information indicating the vehicle ahead route, compares the front vehicle route corresponding to the acquired route information with the own vehicle route, and separates (branches) them. The distance or required time from the current position of the own vehicle to the separation point is detected by using, for example, detection data from the sensor unit 14 or image data from the camera 13. As a result, when the distance from the current position of the own vehicle to the separation point or the required time is less than the preset threshold value, the voice guidance unit 2 does not need to overtake the own vehicle with respect to the vehicle in front. The voice that does not need to be overtaken is emitted into the own vehicle via the speaker 16. This overtaking-free voice is an example of the guidance voice of the embodiment. On the other hand, when the distance or the required time from the current position of the own vehicle to the separation point is equal to or greater than the above threshold value, the voice guidance unit 2 recommends overtaking operation of the own vehicle with respect to the vehicle in front. Is emitted into the own vehicle via the speaker 16. This overtaking recommended voice is also an example of the guidance voice of the embodiment. In parallel with these, the guidance control unit 3 executes guidance of the own vehicle based on the own vehicle route by emitting a guidance voice through the speaker 16 or displaying a map using the display 15.

Next, the guidance processing according to the embodiment centering on the processing unit 10 will be specifically described with reference to FIGS. 2 to 4.

As shown in FIG. 3 for the corresponding flowchart, in the guidance process according to the embodiment, the own vehicle route to the above destination, etc. is set, and the movement of the own vehicle to the destination, etc. is started. Is started. During the guidance, the detection unit 1 monitors whether or not the vehicle in front is moving in the same direction in front of the own vehicle, based on, for example, detection data from the sensor unit 14 or image data from the camera 13. Yes (step S1, step S1: NO).

In the monitoring of step S1, for example, as illustrated in the lower part of FIG. 4, there is an intersection P on the own vehicle route R where the own vehicle C heads for the destination or the like, and there is a bus stop BS at a position in front of the intersection P. It is assumed that it is detected that the bus B as a vehicle in front is approaching or stopped at the bus stop BS (step S1: YES). When the bus B, which is a front vehicle, is detected in step S1, the detection unit 1 and the processing unit 10 then acquire route information indicating the operation route of the bus B as the front vehicle route (step S2). Examples of the method for acquiring route information in step S2 include the following methods.

(I) For example, the bus B operating company and flight number are detected based on image data obtained by capturing the front of the own vehicle with a camera 13, and the bus B operating company and flight number are detected from the external network via the interface 17 based on the detected flight number. Acquire route information as a vehicle route ahead of bus B.
(Ii) When so-called vehicle-to-vehicle communication is possible between the bus B and the own vehicle, the route information as the vehicle route ahead of the bus B is directly acquired from the bus B.
Here, in the case illustrated in FIG. 4, the vehicle route ahead of the bus B is the vehicle route BR illustrated by the broken line in FIG. 4, and more specifically, the route that turns right at the intersection P in front of the bus stop BS. Suppose that it was.

After the route information indicating the front vehicle route BR can be acquired in step S2, the detection unit 1 then compares the front vehicle route BR indicated by the route information acquired in step S2 with the own vehicle route R (step S3). .. Next, the detection unit 1 is a separation point between the front vehicle route BR and the own vehicle route R (that is, a branch point between the front vehicle route BR and the own vehicle route R. It is determined whether or not (which is the entrance to the RL) is in front of the own vehicle C (step S4). In the determination of step S4, when the separation point is in front of the own vehicle C (step S4: YES), the detection unit 1 then determines the position P1 of the separation point (see FIG. 4) and the current position of the own vehicle C. The distance to the PP (see FIG. 4) or the required time is detected (step S5). The detection in step S5 is performed based on, for example, the map data recorded in the recording unit 11 or the detection data from the sensor unit 14 (for example, the current speed of the own vehicle). After that, the detection unit 1 determines whether or not the distance or the required time detected in step S5 is less than a threshold set in advance for determining whether or not the own vehicle C overtakes the bus B which is the vehicle in front. (Step S6). At this time, the threshold value used for the determination in step S6 may be set in advance by the passenger of the own vehicle C, or is determined based on the usual driving history of the driver of the own vehicle C or the like. It may be a distance or a required time corresponding to the overtaking waiting time (time that can tolerate (bear) the state following the vehicle in front). Alternatively, the distance or required time may be generally equivalent to, for example, about 5 to 10 minutes.

In the determination of step S6, when the distance or the required time detected in step S5 is less than the above threshold value (step S6: YES), the voice guidance unit 2 does not need to overtake the bus B, which is the vehicle in front, at the present time. The above-mentioned overtaking-free voice is emitted via the speaker 16 (step S7). By this step S7, in the case illustrated in FIG. 4, the overtaking unnecessary voice is emitted at the current position PP of the own vehicle C. As for the overtaking-free voice that is emitted at this time, for example, "Bus B in front turns right after XX minutes, so there is no need to overtake. Please follow Bus B as it is." At the same time, it is preferable to use a voice having a calm pitch or a speech speed, which includes a content that urges the driver of the own vehicle C not to overtake the unnecessary vehicle. As the voice data or the like for transmitting the voice that does not need to be overtaken in this case, the voice data or the like previously recorded in the recording unit 11 may be used. Further, in the above-mentioned "○○ minutes" part in the overtaking-free voice, the time corresponding to the distance or the required time between the position P1 of the separation point detected in step S5 and the current position PP of the own vehicle C is released. Be sounded. In response to this overtaking-free voice, the driver of the own vehicle C will not overtake until the bus B, which is the vehicle in front, turns right at the intersection P (see FIG. 4).

After that, the guidance control unit 3 determines whether or not the own vehicle C has arrived at the destination or the like (step S9), and if it has arrived at the destination or the like (step S9: YES), the guidance control unit 3 3 and the processing unit 10 end the guidance processing of the embodiment. On the other hand, in the determination of step S9, when the destination or the like has not arrived (step S9: NO), the guidance control unit 3 and the processing unit 10 return to the step S1 and continue the series of guidance processing described above. ..

On the other hand, in the determination of step S6, when the distance or the required time detected in step S5 is equal to or greater than the threshold value (step S6: NO), the voice guidance unit 2 overtakes the bus B, which is the vehicle in front at the present time. The above-mentioned recommended overtaking sound is emitted via the speaker 16 (step S8). By this step S8, in the case illustrated in FIG. 4, the overtaking recommended voice is emitted at the current position PP of the own vehicle C. As the overtaking recommended voice that is emitted at this time, for example, "The bus B in front will move forward for a while, so please overtake." A voice including a content prompting the driver of the own vehicle C is preferable. As the voice data or the like for emitting the overtaking recommended voice in this case, the voice data or the like recorded in advance in the recording unit 11 may be used. In response to this overtaking recommendation voice, the driver of the own vehicle C will overtake the bus B, which is the vehicle in front, from the current position PP (see FIG. 4). After that, the processing unit 10 shifts to the above step S9.

On the other hand, in the determination of step S4, when the front vehicle route BR and the own vehicle route R are not separated in front of the own vehicle C for a predetermined time (step S4: NO), the detection unit 1 then determines the front vehicle. Whether or not the overtaking lane that can change lanes to overtake the barrel bus B is on the own vehicle route R in front of the own vehicle C is shown in, for example, the map data recorded in the recording unit 11. The determination is made based on (step S10). In the determination of step S10, when the overtaking lane is in front of the own vehicle C (step S10: YES), the voice guidance unit 2 shifts to the step S8 and emits the overtaking recommended voice via the speaker 16. Make a sound. The overtaking recommended voice in this case is, for example, an overtaking recommended voice saying, "There is a lane in front of you that can overtake the bus B in front of you, so please overtake there." After that, the processing unit 10 shifts to the above step S9.

On the other hand, in the determination of step S10, when there is no overtaking lane in front of the own vehicle C (step S10: NO), the voice guidance unit 2 maintains the current state, that is, follows the bus B which is the vehicle in front. The status quo sound to the effect of moving is emitted via the speaker 16. The status quo voice emitted at this time is an example of the guidance voice of the example, and specifically, for example, "It is dangerous to overtake the bus B in front, so let's proceed as it is." It is preferable to use a voice having a calm pitch or a speech speed, which includes a reason for stopping the operation and a content for urging the driver of the own vehicle C not to overtake. As the voice data or the like for emitting the status quo voice in this case, the voice data or the like previously recorded in the recording unit 11 may be used. After that, the processing unit 10 shifts to the above step S9.

As described above, according to the guidance processing of the navigation device T of the embodiment shown in FIGS. 3 and 4, the current position PP of the own vehicle C to the separation point between the own vehicle route R and the preceding vehicle route BR is used. Since the content corresponding to the distance or the required time is notified by sound in the own vehicle C (see step S7 or step S8 in FIG. 3), for example, based on the relationship between the routes of the own vehicle C and the bus B which is the vehicle in front, for example. It is possible to prevent the occurrence of an accident due to unnecessary overtaking in the own vehicle C.

Further, when the distance or the required time from the current position PP of the own vehicle C to the separation point is shorter than the predetermined threshold value (see step S6: YES in FIG. 3), it is not necessary for the own vehicle C to overtake the bus B. Since the fact is notified by sound in the own vehicle C, the occurrence of an accident or the like can be prevented more effectively.

Further, the fact that the distance or the required time of the own vehicle C to the separation point from the current position PP is shorter than the threshold value is notified together with the fact that the overtaking is not necessary as the reason why the overtaking is unnecessary (FIG. 3, step S7). (See), it is possible to calm the passengers of the own vehicle C.

Furthermore, when the distance or required time of the vehicle C from the current position PP to the separation point is equal to or greater than the predetermined threshold value (see step S6: NO in FIG. 3), it is recommended that the vehicle C overtake the bus B. Since this is notified by sound in the own vehicle C (see step S8 in FIG. 3), the own vehicle C can be smoothly moved.

Further, when the lane in which the vehicle C can move is detected by overtaking the bus B (see step S10: YES in FIG. 3), the vehicle C notifies by sound that the overtaking of the bus B is recommended. The own vehicle C can be moved smoothly.

In the guidance process of the embodiment, for example, the driver or the passenger of the own vehicle C (hereinafter, the driver or the passenger is simply referred to as the driver or the passenger) before the sound of the overtaking unnecessary voice of the embodiment (see step S7 in FIG. 3). It may be configured to detect the state of (referred to as "driver, etc.") and determine whether or not to emit the overtaking unnecessary voice according to the detection result.

More specifically, the processing unit 10 is based on, for example, the facial expression of the driver captured by the camera 13, the heart rate of the driver detected through the hand holding the steering wheel, and the like, and the state of the driver (psychological state). ) Is detected. When it is detected that the driver or the like is impatient, the voice guidance unit 2 is preferably configured to stop the unreasonable overtaking by emitting a sound that does not require overtaking in the embodiment. .. On the other hand, when it is detected that the driver or the like is calm, the voice guidance unit 2 and the processing unit 10 move to, for example, step S9 or step S10 shown in FIG. 3 without emitting any sound at that time. Suitable. In this case, when it is detected that the driver of the own vehicle C is impatient, it is notified that it is not necessary to overtake the vehicle in front. It can be effectively prevented.

In the above-described embodiment, the case where the driver or the like is calmed down by emitting the overtaking-free voice or the overtaking recommended voice from the speaker 16 has been described. It may be configured to guide by the display using the display 15 having the same purpose as the content.

Further, in the above-described embodiment, the case where the moving body of the embodiment is the own vehicle C (four-wheeled vehicle) has been described, but in addition to this, the movement of the two-wheeled vehicle or the bicycle by the navigation device mounted on the two-wheeled vehicle or the bicycle. It is also possible to apply the guidance process of the embodiment to the guidance process of.

Further, the guidance process as the processing unit 10 in the above-described embodiment may be executed by the server device connected to the navigation device mounted on each vehicle via a network such as the Internet. In this case, the detection data from the sensor unit provided in the navigation device of each vehicle is transmitted to the server device to be used for the guidance process, and overtaking unnecessary voice or overtaking unnecessary voice or overtaking unnecessary voice based on the control from the server device is used. It is preferable to configure each navigation device to emit sound recommended for overtaking.

Further, even when the overtaking-free voice of the embodiment is emitted (see step S6: YES in FIG. 3), if there is an overtaking lane in front of the separation point in front, the vehicle in front is in the overtaking lane. It may be configured to emit an overtaking recommended voice to the effect that it is recommended to overtake.

Furthermore, a program corresponding to the flowchart shown in FIG. 3 is recorded on a recording medium such as an optical disk or a hard disk, or acquired via a network such as the Internet, and read out to a general-purpose microcomputer or the like. It is also possible to make the microcomputer or the like function as the processing unit 10 according to the embodiment.

1 Detection means (detection unit)
2 Notification means (notification unit)
3 Guidance control unit 10 Processing unit 16 Speaker S Guidance device T Navigation device C Vehicle B Bus P Intersection R Own vehicle route BR Front vehicle route RL Right turn lane

Claims

Based on the first moving body route in which the first moving body moves and the second moving body route in which the second moving body, which is another moving body moving in front of the first moving body, moves, A detection means for detecting the distance or time from the current position of the first moving body to the separation point between the first moving body route and the second moving body route.
A notification means for performing notification of the content corresponding to the detected distance or time in the first moving body, and
A notification device characterized by being provided with.
In the notification device according to claim 1,
The notification means is a notification device characterized in that the notification is performed by sound.
In the guidance device according to claim 1 or 2.
When the detected distance or time is shorter than a preset threshold value, the notification means notifies the first moving body that the second moving body does not need to be overtaken by the first moving body. A guidance device characterized by doing.
In the guidance device according to claim 3,
The notifying means is a guidance device comprising notifying that the detected distance or time is shorter than the threshold value together with the fact that the overtaking is unnecessary as the reason why the overtaking is unnecessary.
In the guidance device according to claim 3 or 4.
Further provided with a state detecting means for detecting the state of the passenger of the first moving body, the first moving body is further provided with a state detecting means.
The notification means is a guidance device, characterized in that when it is detected that the passenger is impatient, the notification means that the overtaking is unnecessary.
In the guidance device according to any one of claims 1 to 5.
In the first moving body, the notification means is recommended to overtake the second moving body by the first moving body when the detected distance or time is equal to or more than a preset threshold value. A guidance device characterized by notifying.
In the guidance device according to any one of claims 1 to 6.
Further provided with a movement path detecting means for overtaking the second moving body and detecting a moving path in which the first moving body can move.
The guiding device is characterized in that, when the moving path is detected, the notifying means notifies the first moving body that overtaking of the second moving body is recommended.
A guidance method performed in a guidance device including a detection means and a notification means.
Based on the first moving body route in which the first moving body moves and the second moving body route in which the second moving body, which is another moving body moving in front of the first moving body, moves, A detection step of detecting the distance or time from the current position of the first moving body to the point where the first moving body route and the second moving body route are separated by the detecting means.
A notification step of performing notification of the content corresponding to the detected distance or time in the first moving body by the notification means, and
A notification method comprising:
Computer,
Based on the first moving body route in which the first moving body moves and the second moving body route in which the second moving body, which is another moving body moving in front of the first moving body, moves, A detection means for detecting the distance or time from the current position of the first moving body to a point where the first moving body route and the second moving body route are separated, and
A notification means that notifies the content corresponding to the detected distance or time in the first moving body.
A notification program characterized by functioning as.