JP7357784B2 - Alarm control device and alarm control method - Google Patents

Description

The present disclosure relates to an alarm control device and an alarm control method.

A system is known that issues an alarm when there is a high possibility of a collision between a vehicle and a pedestrian. For example, in Patent Document 1, when it is determined that there is a possibility of a collision based on the positional relationship between the vehicle and the pedestrian, a warning is issued to the pedestrian from a mobile terminal carried by the pedestrian to call for attention. A technique has been proposed.

Japanese Patent Application Publication No. 2013-125347

However, with the technology of Patent Document 1, even when the pedestrian is fully aware that there is a possibility of collision with a vehicle, a warning is uniformly issued based on the positional relationship between the vehicle and the pedestrian. Therefore, there was a problem in that the warning could be a nuisance for pedestrians. On the other hand, if a pedestrian uses a mobile terminal and the pedestrian's attention to the vehicle is reduced, it is desirable to proactively issue a warning.

Therefore, the present disclosure has been made in view of the above-mentioned problems, and aims to provide a technology that can appropriately control a warning regarding contact between a vehicle and a terminal holder of a mobile terminal.

The alarm control device according to the present disclosure includes an acquisition unit that acquires a positional relationship between a vehicle and a mobile terminal, and a terminal usage status that is a usage status of the mobile terminal by a terminal holder of the mobile terminal; A contact determination is made to determine whether the vehicle and the terminal holder will come into contact with each other based on the positional relationship, and if it is determined that the vehicle and the terminal holder will come into contact with each other in the collision determination, multiple alarm modes are activated. and a control section that controls the alarm of the alarm device mounted on the vehicle in an alarm mode that is associated in advance with the terminal usage state acquired by the acquisition section. The control unit causes the alarm device to display a vehicle display object indicating the vehicle and a display object indicating the terminal usage state of the terminal holder at the terminal holder's position around the vehicle display object, in order to control the alarm of the alarm device. .

According to the present disclosure, when it is determined that the vehicle and the terminal holder will come into contact with each other in the collision determination, an alarm mode that is associated in advance with the terminal usage state acquired by the acquisition unit is selected from a plurality of alarm modes. Control the alarm of the alarm device. According to such a configuration, it is possible to appropriately control a warning regarding contact between a vehicle and a terminal holder of a mobile terminal.

Objects, features, aspects, and advantages of the present disclosure will become more apparent from the following detailed description and accompanying drawings.

1 is a block diagram showing the configuration of an alarm control device according to Embodiment 1. FIG. FIG. 2 is a block diagram showing the configuration of an alarm control device according to a second embodiment. 7 is a diagram illustrating an example of a plurality of alarm modes according to Embodiment 2. FIG. 7 is a diagram showing an example of display by the alarm control device according to Embodiment 2. FIG. 7 is a diagram showing an example of display by the alarm control device according to Embodiment 2. FIG. 7 is a diagram showing an example of display by the alarm control device according to Embodiment 2. FIG. 7 is a diagram showing an example of display by the alarm control device according to Embodiment 2. FIG. 7 is a flowchart showing the operation of the alarm control device according to the second embodiment. 3 is a block diagram showing the configuration of an alarm control device according to a second modification of the second embodiment. FIG. FIG. 7 is a block diagram showing the configuration of an alarm control device according to a third modification of the second embodiment. FIG. 7 is a block diagram showing the configuration of an alarm control device according to a fourth modification of the second embodiment. FIG. 3 is a block diagram showing the configuration of an alarm control device according to a third embodiment. 7 is a diagram showing an example of a plurality of alarm modes according to Embodiment 3. FIG. 7 is a diagram showing an example of display by the alarm control device according to Embodiment 3. FIG. 7 is a flowchart showing the operation of the alarm control device according to Embodiment 3. FIG. 7 is a block diagram showing the configuration of an alarm control device according to a modification of Embodiment 3. FIG. FIG. 3 is a block diagram showing the configuration of an alarm control device according to a fourth embodiment. 12 is a flowchart showing the operation of the vehicle device according to Embodiment 4. 13 is a flowchart showing the operation of the alarm control device according to Embodiment 4. FIG. 7 is a block diagram showing a hardware configuration of an alarm control device according to another modification. FIG. 7 is a block diagram showing a hardware configuration of an alarm control device according to another modification. FIG. 7 is a block diagram showing the configuration of a server according to another modification.

<Embodiment 1>
FIG. 1 is a block diagram showing the configuration of an alarm control device 1 according to the first embodiment. The alarm control device 1 in FIG. 1 is communicably connected to the alarm device 51 by wireless or wire, and is capable of controlling the alarm of the alarm device 51.

Under the control of the alarm control device 1, the alarm device 51 issues an alarm for contact such as a collision between the vehicle and the owner of the mobile terminal. Mobile terminals include, for example, mobile phones, smartphones, tablets, and the like. The terminal owner may be a pedestrian or a rider of a bicycle or the like.

As described in Embodiment 2, etc., the alarm device 51 may include a display device that issues an alarm through display, or may include an audio output device that issues an alarm sound or alarm content through audio output. . Moreover, the alarm control device 1 and the alarm device 51 may be provided in the vehicle, may be provided in the mobile terminal, or may be provided in a distributed manner between the vehicle and the mobile terminal. In addition, although the alarm device 51 is not included in the alarm control device 1 in the example of FIG. 1, the alarm control device 1 may be provided with the alarm device 51.

The alarm control device 1 in FIG. 1 includes an acquisition section 11 and a control section 12.

The acquisition unit 11 acquires the positional relationship between the vehicle and the mobile terminal. The positional relationship between the vehicle and the mobile terminal may be the respective absolute positions (for example, longitude and latitude) of the vehicle and the mobile terminal, or may be the relative position of one of the vehicle and the mobile terminal with respect to the other. The above-mentioned functions of the acquisition unit 11 include, for example, an image recognition device that acquires the position of the vehicle and the mobile terminal based on an image taken of the other, and a GPS (Global Positioning System) that detects the positions of the vehicle and the mobile terminal. At least one of a GNSS (Global Navigation Satellite System) receiving device such as a receiving device, a communication device provided in one of the vehicle and the mobile terminal to receive the position from the other, and an interface thereof is used.

The acquisition unit 11 also acquires the usage status of the mobile terminal, which is the usage status of the mobile terminal by the owner of the mobile terminal. The above functions of the acquisition unit 11 include, for example, an image recognition device that acquires the terminal usage status based on an image of the terminal owner taken in a vehicle, a communication device that acquires the terminal usage status from the control device of the mobile terminal, and , at least one of these interfaces is used.

The control unit 12 performs a contact determination based on the positional relationship acquired by the acquisition unit 11 to determine whether the vehicle and the terminal holder will come into contact with each other. In addition, when it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the control unit 12 selects an alarm mode that is associated in advance with the terminal usage state acquired by the acquisition unit 11 from among the plurality of alarm modes. The alarm of the alarm device 51 is controlled.

<Summary of Embodiment 1>
According to the alarm control device 1 according to the first embodiment as described above, a contact determination is performed, and when it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the obtained terminal usage state is The alarm of the alarm device 51 is controlled in the alarm mode associated with the controller in advance. According to such a configuration, even if it is determined that the vehicle and the terminal holder will come into contact with each other, the terminal holder is not using the mobile terminal and the terminal holder's attentiveness to the vehicle is relatively low. If the target is high, a mild warning can be issued or the warning can be stopped. On the other hand, if the terminal holder is using a mobile terminal and the terminal holder's attention to the vehicle is relatively low, a severe warning can be issued. Therefore, it is possible to appropriately issue a warning regarding contact between the vehicle and the owner of the mobile terminal. Furthermore, by appropriately suppressing the issuance of alarms, it can be expected that the power consumption used for alarms will be reduced.

<Embodiment 2>
FIG. 2 is a block diagram showing the configuration of the alarm control device 1 according to the second embodiment. Hereinafter, among the constituent elements according to the second embodiment, constituent elements that are the same or similar to the above-mentioned constituent elements will be given the same or similar reference numerals, and different constituent elements will be mainly explained.

The alarm control device 1 in FIG. 2 is communicably connected to a HUD (Head-Up Display) 51a, a CID (Center Information Display) 51b, an audio output device 51c, and an on-vehicle camera 52 by wireless or wire. In the second embodiment, it is assumed that the alarm control device 1 is applied to an in-vehicle infotainment device, and the components shown in FIG. 2 are provided in a vehicle.

The HUD 51a is, for example, a device that projects and displays a display object on the windshield (windshield) of the vehicle along with the scenery outside the vehicle. The CID 51b is, for example, a display device provided at the center of the instrument panel. The audio output device 51c is a device that outputs an alarm sound. The HUD 51a, the CID 51b, and the audio output device 51c are included in the concept of the alarm device 51 in FIG.

In the following description, if the HUD 51a, CID 51b, and audio output device 51c are not distinguished from each other, they may be referred to as "vehicle-side alarm device 51." In addition, in order to distinguish it from the above-mentioned display device and audio output device installed in a vehicle, the display device installed in a mobile terminal may be referred to as a "terminal display device" in the following explanation for convenience. The provided audio output device may also be referred to as a "terminal audio output device."

The vehicle-mounted camera 52 photographs images outside the vehicle.

<Configuration of alarm control device>
The alarm control device 1 in FIG. 2 includes an information acquisition section 11a, a terminal usage state acquisition section 11b, a contact determination section 12a, and an alarm control section 12b. The information acquisition unit 11a and the terminal usage status acquisition unit 11b are included in the concept of the acquisition unit 11 in FIG. 1, and the contact determination unit 12a and the alarm control unit 12b are included in the concept of the control unit 12 in FIG.

The information acquisition unit 11a performs image recognition based on the image of the terminal holder outside the vehicle taken by the in-vehicle camera 52, and thereby determines the relative position of the terminal holder with respect to the vehicle as a positional relationship between the vehicle and the mobile terminal. get.

The terminal usage status acquisition unit 11b acquires the terminal usage status of the terminal holder by performing image recognition based on an image of the terminal holder outside the vehicle taken by the in-vehicle camera 52. The terminal usage state according to the second embodiment includes an unused state in which the terminal owner is not using the mobile terminal, and a display usage state (first state) in which the terminal owner is looking at the display on the terminal display device. , and an audio use state (second state) in which the terminal owner is listening to audio from the terminal audio output device. The display usage state includes a state in which the terminal owner is directly viewing the display on the terminal display device, a state in which the terminal owner is viewing the display on the terminal display device through a head-mounted display, and the like. The audio usage state includes a state where the terminal owner is directly listening to the audio from the terminal audio output device, a state where the terminal owner is listening to the audio from the terminal audio output device via headphones, and the like.

The contact determination unit 12a performs a contact determination to determine whether the vehicle and the terminal holder will come into contact with each other based on the positional relationship acquired by the information acquisition unit 11a. For example, the contact determination unit 12a determines that the vehicle and the terminal owner will come into contact with each other when the distance between the vehicle position and the terminal owner's position is less than or equal to a predetermined threshold.

When it is determined in the contact determination that the vehicle and the terminal holder will come into contact with each other, the alarm control section 12b selects one of the plurality of alarm modes that is associated with the terminal usage state acquired by the terminal usage state acquisition section 11b in advance. Select the alarm mode. The alarm control unit 12b then controls the alarms of the HUD 51a, CID 51b, and audio output device 51c in the selected alarm mode.

Note that the timings of alarms used in a plurality of alarm modes, such as image display timing and audio output timing, may be different from each other. Further, the sizes of the alarms used in the plurality of alarm modes, such as the size of the image and the size of the sound, may be different from each other. Also, the content of the alerts used in the plurality of alert modes, such as image content and audio content, may be different from each other. Further, the combinations of devices used in the plurality of alarm modes may be different from each other. The combination of devices here may be a combination of the HUD 51a, the CID 51b, and the audio output device 51c, or a combination of the left channel and right channel of the audio output device 51c. By combining the above, in a plurality of alarm modes, at least one of the timing, size, content, and combination of devices of the alarm may be different from each other.

FIG. 3 is a diagram showing an example of a plurality of alarm modes used in the second embodiment. In the second embodiment, in the alarm control device 1, alarm modes are associated in advance with each of the unused state, display used state, and audio used state, and one alarm is issued for each of these three alarm modes. set is defined.

In the example of FIG. 3, six alarm sets are defined, and the alarm control unit 12b controls the HUD 51a, CID 51b and audio output in any of the three alarm modes of one alarm set selected by the user of the vehicle. Controls the alarm of the device 51c. Some of the six alarm sets will be explained below.

<Second alarm set>
When the terminal usage state is a non-use state, the alarm control unit 12b performs control in an alarm mode previously associated with the non-use state. Thereby, the warning control unit 12b performs control to cause the audio output device 51c to output a voice saying "Beware of pedestrians".

When the terminal usage state is the display usage state, the alarm control unit 12b performs control in an alarm mode previously associated with the display usage state. Thereby, the alarm control unit 12b performs control to display an in-use display object 71 indicating a mobile terminal as shown in FIG. 4 on the HUD 51a. The in-use display object 71 in FIG. 4 is a display object that is projected and displayed on the windshield 71a of the vehicle so as to accompany the terminal holder who is viewing the display on the terminal display device. Further, as shown in FIG. 3, the alarm control unit 12b controls the audio output device 51c to output a voice saying "pedestrian using display".

When the terminal usage state is the audio usage state, the alarm control unit 12b performs control in an alarm mode previously associated with the audio usage state. As a result, although not shown, the alarm control unit 12b controls the HUD 51a to display an audio-in-use display object indicating headphones, accompanying the terminal owner who is listening to the audio from the terminal audio output device. Further, the alarm control unit 12b controls the audio output device 51c to output the audio "Pedestrian using audio".

<4th alarm set>
When the terminal is not in use, the alarm control unit 12b controls the audio output device 51c to output a voice saying "Beware of pedestrians" at a late timing. When the terminal usage state is the display usage state, the alarm control unit 12b performs control to cause the audio output device 51c to output a voice saying "pedestrian using display" at an early timing. When the terminal usage state is the audio usage state, the alarm control unit 12b performs control to cause the audio output device 51c to output the audio "Pedestrian using audio" at a timing between the late timing and the early timing.

<5th alarm set>
When the terminal usage state is a non-use state, a display usage state, and an audio usage state, a pedestrian display object, a display usage display object, and a voice usage display object are respectively displayed by the CID 51b.

FIG. 5 shows an example of a pedestrian display object, a display-in-use display object, and a voice-in-use display object. The pedestrian display object in FIG. 5 indicates a state in which the terminal holder is not using the mobile terminal. The display-in-use display object in FIG. 5 shows a state in which the terminal owner is directly looking at the display of the mobile terminal. The audio-in-use display object in FIG. 5 shows a state in which the terminal owner is directly listening to audio from the mobile terminal.

FIG. 6 shows another example of a pedestrian display object, a display-in-use display object, and a voice-in-use display object. The pedestrian display object in FIG. 6 indicates a state in which the terminal holder is not using the mobile terminal. The display-in-use display object in FIG. 6 shows a state in which the terminal owner is viewing the display of the mobile terminal via the head-mounted display. The audio-in-use display object in FIG. 6 shows a state in which the terminal owner is listening to audio from the mobile terminal through headphones.

The alarm control unit 12b may control the CID 51b to display a display object corresponding to the terminal usage state among the display objects shown in FIGS. 5 and 6. For example, the alarm control unit 12b displays the display object shown in FIG. 6 when it is able to recognize display use via a head-mounted display, and displays the display object shown in FIG. 5 when it can recognize display use not via a head-mounted display. Display objects may also be displayed. For example, the alarm control unit 12b displays the display object in FIG. 6 when it is able to recognize the use of voice through headphones, and displays the display object in FIG. 5 when it can recognize the use of voice not through headphones. You may.

Similarly, the alarm control unit 12b may control the HUD 51a to display a display object corresponding to the terminal usage state. Further, the alarm control unit 12b may combine the display of the display object on the HUD 51a and the display of the display object on the CID 51b.

<6th alarm set>
In the sixth alarm set, similarly to the fifth alarm set, when the terminal usage status is non-use status, display usage status, and audio usage status, the pedestrian display object, the display usage display object, and the audio Display objects in use are each displayed by CID 51b. However, in the sixth alarm set, in addition to these display objects, a vehicle display object indicating a vehicle is also displayed using the CID 51b.

FIG. 7 is a diagram showing a display example of the CID 51b controlled by the sixth alarm set, and shows a display example when the vehicle is stopped in a parking lot. As shown in FIG. 7, the CID 51b allows a pedestrian display object 72a, a display-in-use display object 72b, a voice-in-use display object 72c, and a vehicle display object 73 indicating a vehicle in which the alarm control device 1 is installed. It is shown.

As shown in the example of FIG. 7, when a plurality of mobile terminals are recognized through image processing, the alarm control unit 12b controls the alarm using the alarm mode for each of the plurality of mobile terminals in parallel. Good too. Further, the alarm control unit 12b may make the relative position of the pedestrian display object 72a with respect to the vehicle display object 73 correspond to the positional relationship between the vehicle and the mobile terminal that is not in use. Similarly, the alarm control unit 12b may make the relative position of the display object 72b in use with respect to the vehicle display object 73 correspond to the positional relationship between the vehicle and the mobile terminal in the display use state. Similarly, the alarm control unit 12b may make the relative position of the voice-in-use display object 72c with respect to the vehicle display object 73 correspond to the positional relationship between the vehicle and the mobile terminal in the voice-in-use state. Furthermore, the various controls described in the fifth alarm set may be performed in the sixth alarm set.

<Operation>
FIG. 8 is a flowchart showing the operation of the alarm control device 1 according to the second embodiment.

In step S1, under the control of the alarm control device 1, the on-vehicle camera 52 takes an image of the outside of the vehicle.

In step S2, the information acquisition unit 11a acquires the positional relationship between the vehicle and the mobile terminal based on the image outside the vehicle taken by the in-vehicle camera 52.

In step S3, the contact determination unit 12a performs contact determination based on the positional relationship acquired by the information acquisition unit 11a. If it is determined in the contact determination that the vehicle and the terminal holder will come into contact with each other, the process proceeds to step S4, and if it is determined in the contact determination that the vehicle and the terminal holder do not come into contact with each other, the process continues. Return to step S1.

In step S4, the terminal usage status acquisition unit 11b acquires the terminal usage status of the terminal holder based on the image outside the vehicle taken by the in-vehicle camera 52.

In step S5, the alarm control unit 12b determines whether the terminal usage state acquired by the terminal usage state acquisition unit 11b is a non-use state, a display usage state, or an audio usage state. If it is determined that the terminal usage status is not in use, the process advances to step S6, and if it is determined that the terminal usage status is display usage status, the process advances to step S7, in which the terminal usage status is determined to be the display usage status. If it is determined that the voice is being used, the process advances to step S8.

In step S6, the alarm control unit 12b controls the alarm of the vehicle-side alarm device 51 in an alarm mode previously associated with the non-use state. After that, the process returns to step S1. Note that when the alarm is controlled at a late timing, such as when the fourth alarm set is not in use, the alarm is not controlled until the process returns from step S6 to step S1 and the contact determination process of step S3 is performed again. may be withheld. According to such a configuration, unnecessary warnings can be suppressed, for example, if an action to avoid contact between the vehicle and the terminal holder is performed before the warning in step S6 is issued. .

In step S7, the alarm control unit 12b controls the alarm of the vehicle-side alarm device 51 in an alarm mode previously associated with the display usage state. After that, the process returns to step S1.

In step S8, the alarm control unit 12b controls the alarm of the vehicle-side alarm device 51 in an alarm mode that is previously associated with the voice usage state. After that, the process returns to step S1.

<Summary of Embodiment 2>
According to the alarm control device 1 according to the second embodiment as described above, a contact determination is performed, and when it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the obtained terminal usage state is The alarm of the vehicle-side alarm device 51 is controlled in a pre-corresponding alarm mode. According to such a configuration, the warning device 51 on the vehicle side can issue an appropriate warning.

Furthermore, in the second embodiment, the timings of alarms used in a plurality of alarm modes, such as the fourth alarm set, are different from each other. According to such a configuration, for example, if an action to avoid contact between the vehicle and the terminal owner is performed before the warning is issued, the warning can be stopped. Therefore, the warning device 51 on the vehicle side can issue an appropriate warning.

<Modification 1 of Embodiment 2>
In the present modification example 1, the information acquisition unit 11a uses the image of the terminal holder outside the vehicle taken by the in-vehicle camera 52 as relative movement information, which is movement information of the mobile terminal with respect to the vehicle. Obtain relative position time series information. The contact determination unit 12a then performs contact determination based on the positional relationship between the vehicle and the mobile terminal 2 acquired by the information acquisition unit 11a and the relative movement information of the mobile terminal.

For example, the contact determination unit 12a determines whether the vehicle and the mobile terminal 2 have terminals based on the positional relationship between the vehicle and the mobile terminal 2 and the future movement trajectory of the mobile terminal 2 predicted from the relative movement information of the mobile terminal 2. determine whether the two pass in parallel to each other. Then, even if the distance between the vehicle and the mobile terminal 2 is relatively short, if the contact determination unit 12a determines that the vehicle and the terminal holder of the mobile terminal 2 pass in parallel to each other, the contact determination unit 12a determines that the vehicle and the terminal It is determined that the owner and the owner do not come into contact with each other.

According to the alarm control device 1 according to the first modification, the accuracy of contact determination can be improved. Note that the contact determination unit 12a determines the contact grace period, which is the time until contact occurs, based on the positional relationship between the vehicle and the mobile terminal 2 acquired by the information acquisition unit 11a, and the relative movement information of the mobile terminal 2. It may be estimated.

<Modification 2 of Embodiment 2>
FIG. 9 is a block diagram showing the configuration of the alarm control device 1 according to the second modification. In the alarm control device 1 of FIG. 9, the information acquisition unit 11a is not connected to the in-vehicle camera 52, but is connected to the GPS reception device 53 that detects the position of the vehicle, and has a communication unit 13 that can communicate with the mobile terminal 2. It is the same as the alarm control device 1 of FIG. 2 except that it is connected.

The information acquisition unit 11a acquires the position of the vehicle from the GPS receiver 53, and transmits the position of the mobile terminal 2 detected by the terminal GPS receiver (not shown) built into the mobile terminal 2 to the communication unit 13 from the mobile terminal 2. The positional relationship between the vehicle and the mobile terminal 2 is acquired by acquiring the positional relationship between the vehicle and the mobile terminal 2. Further, the information acquisition unit 11a acquires time series information of the position of the vehicle as the movement information of the vehicle, and acquires time series information of the position of the mobile terminal 2 as the movement information of the mobile terminal 2.

Similarly to the first modification of the second embodiment, the contact determination unit 12a determines the position based on the positional relationship between the vehicle and the mobile terminal 2, the movement information of the vehicle, and the movement information of the mobile terminal 2 acquired by the information acquisition unit 11a. to determine contact.

According to the alarm control device 1 according to the second modification, the accuracy of contact determination can be improved. Note that the contact determination unit 12a may estimate the contact delay time, which is the time until contact occurs, based on the positional relationship between the vehicle and the mobile terminal 2, the movement information of the vehicle, and the movement information of the mobile terminal 2. good.

<Variation 3 of Embodiment 2>
FIG. 10 is a block diagram showing the configuration of the alarm control device 1 according to the third modification. The alarm control device 1 in FIG. 10 is similar to the alarm control device 1 in FIG. 9 except that the information acquisition unit 11a is connected to the steering position detection device 54 and the vehicle speed detection device 55.

The information acquisition unit 11a acquires vehicle movement information based on the steering position of the vehicle detected by the steering position detection device 54 and the traveling speed of the vehicle detected by the vehicle speed detection device 55. Similarly to the second modification of the second embodiment, the contact determination unit 12a determines the position based on the positional relationship between the vehicle and the mobile terminal 2, the movement information of the vehicle, and the movement information of the mobile terminal 2 acquired by the information acquisition unit 11a. to determine contact. According to the alarm control device 1 according to the third modification, the accuracy of contact determination can be improved similarly to the second modification of the second embodiment.

<Modification 4 of Embodiment 2>
FIG. 11 is a block diagram showing the configuration of the alarm control device 1 according to the fourth modification. The alarm control device 1 of FIG. 11 has the following points: the terminal usage state acquisition unit 11b is connected to the communication unit 13 without being connected to the in-vehicle camera 52, and the mobile terminal 2 is provided with the terminal side acquisition unit 21b. The alarm control device 1 is the same as the alarm control device 1 shown in FIG. 10 except that the alarm control device 1 shown in FIG.

The terminal-side acquisition unit 21b is included in the concept of the acquisition unit 11 in FIG. The terminal-side acquisition unit 21b acquires the terminal usage status from a control device (not shown) of the mobile terminal 2 that manages the terminal usage status. The terminal usage status according to the fourth modification includes "screen in use", "music in use", "telephone communication in progress", and "not in use".

The vehicle-side terminal usage status acquisition unit 11b acquires the terminal usage status acquired by the terminal-side acquisition unit 21b from the mobile terminal 2 via the communication unit 13. In this modification 4, in the alarm control device 1, an alarm mode is associated in advance with each of "screen in use", "music in use", "telephone communication in progress", and "not in use". Note that the alarm used in the alarm mode pre-assigned to "Telephone communication in progress" has a milder level than the alarm used in the alarm mode pre-assigned to "Screen in use" and "Music in use", for example. Alarms are used.

According to the alarm control device 1 according to the present modification 4, it is possible to improve the accuracy of the terminal usage state. Furthermore, the alarm of the vehicle-side alarm device 51 can be controlled without using the vehicle-mounted camera 52.

Note that the terminal usage status is not limited to the above. For example, the terminal usage state may be the type of application used on the mobile terminal 2, and in the alarm control device 1, an alarm mode may be associated with each application type in advance. For example, the terminal usage state may be the usage time of the terminal holder per unit time of the mobile terminal 2, and in the alarm control device 1, an alarm mode is associated with each of the usage time categories in advance. Good too.

<Modification 5 of Embodiment 2>
In the present modification 5, the information acquisition unit 11a uses surrounding caution, which indicates the degree to which the terminal holder is careful about the surroundings of the terminal holder, based on an image of the terminal holder outside the vehicle taken by the in-vehicle camera 52. Get degrees. For example, the information acquisition unit 11a may image-recognize that the terminal holder is looking down based on an image of the terminal holder, and may obtain a peripheral alertness level that decreases as the time that the terminal holder continues looking down increases. good. For example, the information acquisition unit 11a may perform image recognition of the direction of the terminal owner's face based on the image of the terminal owner, and obtain a peripheral attention level that decreases as the frequency of changes in the face direction decreases. . For example, the information acquisition unit 11a may image recognize the facial expression and body orientation of the terminal holder based on the image of the terminal holder, and change the peripheral alertness level based on the facial expression and body orientation. You can.

In this modification 5, in the alarm control device 1, an alarm mode is associated in advance with each combination of the terminal usage state and the surrounding caution level. For example, an alarm used in an alarm mode that is pre-corresponding to one peripheral alertness level may have a lower warning than an alarm used in an alarm mode that is pre-corresponded to another peripheral alertness level that is lower than the one peripheral alertness level. Severe alerts are used.

When it is determined that the vehicle and the terminal holder will come into contact with each other in the collision determination, the alarm control section 12b selects the terminal usage state and surrounding caution level acquired by the terminal usage state acquisition section 11b from among the plurality of warning modes. Select an alarm mode associated with the combination in advance. According to the alarm control device 1 according to the present modification 5, an appropriate alarm mode can be used.

<Variation 6 of Embodiment 2>
In the sixth modification, the information acquisition unit 11a acquires the area where the vehicle and the mobile terminal 2 are located based on the positions of the vehicle and the mobile terminal 2 from map information in which the area is defined in advance. The areas referred to here include unclear areas where there is no clear distinction between roadways and sidewalks and where vehicles and pedestrians coexist, and clear areas where there is a clear distinction between roadways and sidewalks. Undefined areas include, for example, narrow streets without sidewalks, residential areas, parking lots, expressway service areas and parking areas, and roads where the height difference between the sidewalk and the roadway is less than a predetermined threshold. . The clear area includes, for example, a road where a roadway and a sidewalk are separated by a difference in height or the like.

In this modification 6, in the alarm control device 1, an alarm mode is associated in advance with each combination of terminal usage state and area. For example, a warning used in a warning mode pre-corresponding to an unclear area is a more severe warning than a warning used in a warning mode pre-corresponding to a clear area.

When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the alarm control unit 12b selects a combination of the terminal usage state and area acquired by the terminal usage state acquisition unit 11b from among the plurality of warning modes. Select a pre-corresponding alarm mode. According to the alarm control device 1 according to the present modification 6, for example, when the area where the vehicle and the mobile terminal 2 are located is an unclear area, it is possible to select an alarm mode with earlier alarm timing. can. In this way, appropriate alarm modes can be used.

Note that the alarm control unit 12b may control issuing and stopping of the alarm of the vehicle-side alarm device 51 based on the area acquired by the information acquisition unit 11a and the result of the contact determination. For example, even if it is determined in the collision determination that the vehicle and the terminal holder will come into contact with each other, if the area where the vehicle and the mobile terminal 2 are located is a clear area, the alarm control unit 12b may The alarm of the alarm device 51 may be stopped.

<Modification 7 of Embodiment 2>
In Modification 7, the information acquisition unit 11a acquires the traveling speed of the vehicle from the vehicle speed detection device 55. In this modification 7, in the alarm control device 1, an alarm mode is associated in advance with each combination of terminal usage state and travel speed. For example, a warning used in a warning mode pre-assigned to one traveling speed may have a more severe warning than an alarm used in a warning mode pre-assigned to another traveling speed greater than the one traveling speed. is used. In some cases, an alarm used in a warning mode pre-assigned to one travel speed may be more severe than an alarm used in a warning mode pre-assigned to another travel speed that is less than the one travel speed. alarms are used.

When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the alarm control unit 12b selects a combination of the terminal usage state and traveling speed acquired by the terminal usage state acquisition unit 11b from among the plurality of warning modes. Select the alarm mode that is associated with the alarm mode in advance.

Here, in general, when the driver has poor visibility due to traffic jams or narrow streets, or when the driver is looking for something, the driver tends to drive slowly. When a vehicle is moving slowly, for example at a speed of about 10 to 15 km/h, there is a high possibility that a pedestrian will jump out.

According to the alarm control device 1 according to Modification 7, for example, when the vehicle is moving slowly, it is possible to select an alarm mode that issues a severe alarm. In this way, appropriate alarm modes can be used.

Note that the alarm control unit 12b may control issuing and stopping of the alarm of the vehicle-side alarm device 51 based on the traveling speed acquired by the information acquisition unit 11a and the result of the contact determination. For example, even if the alarm control unit 12b determines in the contact determination that the vehicle and the terminal holder do not contact each other, if the traveling speed is less than a predetermined speed (for example, 10 km/h), An alarm may be issued by the alarm device 51 on the vehicle side.

<Embodiment 3>
FIG. 12 is a block diagram showing the configuration of the alarm control device 1 according to the third embodiment. Hereinafter, among the components according to the third embodiment, the same or similar components as those described above will be given the same or similar reference numerals, and different components will be mainly explained.

In the second embodiment, the alarm control device 1, the HUD 51a, the CID 51b, and the audio output device 51c controlled by the alarm control device 1 are provided in the vehicle. In contrast, in the third embodiment, the alarm control device 1 is provided in the vehicle, and the terminal display device 51d and the terminal audio output device 51e, which are controlled by the alarm control device 1, are provided in the mobile terminal 2. There is. In the following description, if the terminal display device 51d and the terminal audio output device 51e are not distinguished from each other, they may be referred to as "the alarm device 51 on the mobile terminal 2 side."

Similar to the second embodiment, the information acquisition unit 11a acquires the positional relationship between the vehicle and the mobile terminal 2 based on the image of the terminal holder outside the vehicle taken by the in-vehicle camera 52.

Similarly to the second embodiment, the terminal usage status acquisition unit 11b acquires the terminal usage status of the terminal holder based on the image of the terminal holder outside the vehicle taken by the in-vehicle camera 52. Similar to Embodiment 2, the terminal usage state according to the third embodiment includes a non-use state, a display usage state (first state), and an audio usage state (second state).

Similarly to the second embodiment, the contact determination unit 12a performs a contact determination to determine whether the vehicle and the terminal holder will come into contact with each other based on the positional relationship acquired by the information acquisition unit 11a. Further, the contact determination unit 12a according to the third embodiment determines the degree of urgency indicating the degree of urgency to avoid contact between the vehicle and the terminal holder, based on the positional relationship acquired by the information acquisition unit 11a.

The plurality of alarm modes according to the third embodiment include three alarm modes that are associated in advance with a non-use state, a display use state, and an audio use state. In the alarm mode pre-corresponding to the display usage state, an alarm is displayed on the terminal display device 51d, and in the alarm mode pre-corresponding to the audio usage state, the alarm sound is output from the terminal audio output device 51e. Ru.

FIG. 13 is a diagram showing an example of a plurality of alarm modes used in the third embodiment. In the example of FIG. 13, in the alarm control device 1, an alarm mode is associated in advance with each combination of the terminal usage state and the degree of urgency. When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the alarm control section 12b selects the terminal usage state acquired by the terminal usage state acquisition section 11b and the contact determination section 12a from among the plurality of warning modes. Select an alarm mode that corresponds in advance to the combination of degrees of urgency determined in . Then, the alarm control unit 12b controls the alarm of the terminal display device 51d and the terminal audio output device 51e in the selected alarm mode.

FIG. 14 is a diagram showing a display example of the terminal display device 51d controlled in some of the alarm modes of FIG. 13. When the degree of urgency is low and the terminal usage state is not in use, no warning is displayed on the terminal display device 51d, but a display is performed by the application in use. When the degree of urgency is low and the terminal usage state is the display usage state, characters indicating a warning and a vehicle caution icon 75 are added to the display on the terminal display device 51d. When the degree of emergency is high and the terminal usage state is display usage state, the entire screen of the terminal display device 51d displays characters indicating a warning and the position of the vehicle as seen from the terminal holder (corresponding to the center of the circle). A vehicle display object 76 is displayed.

<Operation>
FIG. 15 is a flowchart showing the operation of the alarm control device 1 according to the third embodiment.

In step S11, under the control of the alarm control device 1, the in-vehicle camera 52 takes an image of the outside of the vehicle.

In step S12, the information acquisition unit 11a acquires the positional relationship between the vehicle and the mobile terminal 2 based on the image outside the vehicle taken by the on-vehicle camera 52.

In step S13, the information acquisition unit 11a acquires the location and ID of the mobile terminal 2 via the communication unit 13. The alarm control device 1 compares the positional relationship acquired in step S12 with the position of the mobile terminal 2 acquired in step S13, thereby identifying the mobile terminal 2 in the image photographed in step S11 and the position of the mobile terminal 2 in step S12. The acquired ID is associated with the acquired ID.

In step S14, the contact determination unit 12a performs contact determination based on the positional relationship acquired by the information acquisition unit 11a. If it is determined in the contact determination that the vehicle and the terminal holder will come into contact with each other, the process proceeds to step S15, and if it is determined in the contact determination that the vehicle and the terminal holder do not come into contact with each other, the process continues. Return to step S11.

In step S15, the contact determination unit 12a calculates the degree of urgency based on the positional relationship acquired by the information acquisition unit 11a. Note that the operation in step S15 may be performed in parallel with the operation in step S14.

In step S16, the terminal usage status acquisition unit 11b acquires the terminal usage status of the terminal holder based on the image outside the vehicle taken by the in-vehicle camera 52.

In step S17, the alarm control unit 12b selects a combination of the terminal usage status acquired by the terminal usage status acquisition unit 11b and the degree of urgency determined by the contact determination unit 12a from among the plurality of alarm modes. Select alarm mode.

In step S18, the alarm control unit 12b transmits to the portable terminal 2 a control signal for controlling the alarm of the alarm device 51 on the portable terminal 2 side in the alarm mode selected in step S17. Note that in order to individually control the mobile terminal 2, the control signal includes the ID acquired in step S13. After that, the process returns to step S11.

<Summary of Embodiment 3>
According to the alarm control device 1 according to the third embodiment as described above, a contact determination is performed, and when it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the acquired terminal usage state is The alarm of the alarm device 51 on the mobile terminal 2 side is controlled in the alarm mode associated with the mobile terminal 2 in advance. For example, when the terminal usage state is the display usage state, a warning is displayed on the terminal display device 51d, and when the terminal usage state is the display usage state, the warning sound is output from the terminal audio output device 51e. Ru. According to such a configuration, the alarm device 51 on the mobile terminal 2 side can appropriately issue an alarm.

<Modification of Embodiment 3>
In the third embodiment, each modification of the second embodiment may be applied. For example, in the third embodiment, as in the second modification of the second embodiment (FIG. 9), the information acquisition unit 11a may acquire vehicle position information and movement information from the GPS receiving device 53, or The position information and movement information of the mobile terminal 2 may be acquired from the mobile terminal 2.

For example, in the third embodiment, as in the fifth modification of the second embodiment, the information acquisition unit 11a acquires the surrounding caution level based on the image of the terminal holder outside the vehicle taken by the in-vehicle camera 52. You may. Then, the alarm control unit 12b may select an alarm mode to be used for the alarm device 51 on the mobile terminal 2 side from among the plurality of alarm modes, taking into consideration the surrounding caution level. Note that the alarm control unit 12b may control the issuing and stopping of the alarm of the vehicle-side alarm device 51 based on the surrounding caution level acquired by the information acquisition unit 11a and the result of the contact determination. For example, even if it is determined in the collision determination that the vehicle and the terminal holder will come into contact with each other, the alarm control unit 12b may cause the mobile terminal 2 to The alarm of the alarm device 51 may be stopped.

For example, in the third embodiment, as in the fourth modification of the second embodiment (FIG. 11), the terminal usage status acquisition unit 11b receives the terminal usage status acquired by the terminal side acquisition unit 21b from the mobile terminal 2. It may also be acquired via the communication unit 13. According to such a configuration, the accuracy of the terminal usage status can be improved. Further, as shown in FIG. 16, if the second embodiment (FIG. 9) and the fourth variation (FIG. 11) of the second embodiment are applied to the third embodiment, the vehicle-side The alarm of the alarm device 51 can be controlled.

<Embodiment 4>
FIG. 17 is a block diagram showing the configuration of the alarm control device 1 according to the fourth embodiment. Hereinafter, among the components according to the fourth embodiment, the same or similar components as those described above will be given the same or similar reference numerals, and different components will be mainly explained.

In the second embodiment, the alarm control device 1 and the alarm device 51 are provided in the vehicle. In the third embodiment, the alarm control device 1 is provided in the vehicle, and the alarm device 51 is provided in the mobile terminal 2.

In the fourth embodiment, an alarm control device 1 and an alarm device 51 are provided in the mobile terminal 2. Note that the vehicle is provided with a GPS receiving device 53 and an in-vehicle communication device 3 that transmits the position of the vehicle detected by the GPS receiving device 53 to the mobile terminal 2.

The mobile terminal 2 includes an alarm control device 1, a terminal display device 51d, a terminal audio output device 51e, and a terminal GPS receiving device 57. The terminal display device 51d and the terminal audio output device 51e in FIG. 17 are the same as the terminal display device 51d and the terminal audio output device 51e described above. A terminal GPS receiving device 57 connected to the alarm control device 1 detects the position of the mobile terminal 2 .

The alarm control device 1 in FIG. 17 includes an information acquisition section 21a, a terminal side acquisition section 21b, a contact determination section 22a, an alarm control section 22b, and a communication section 23. The information acquisition unit 21a and the terminal side acquisition unit 21b are included in the concept of the acquisition unit 11 in FIG. 1, and the contact determination unit 22a and the alarm control unit 22b are included in the concept of the control unit 12 in FIG.

As explained below, the information acquisition section 21a, the terminal side acquisition section 21b, the contact determination section 22a, and the alarm control section 22b are the information acquisition section 11a, the terminal usage state acquisition section 11b, and the terminal usage state acquisition section 11b described in the second embodiment. They respectively correspond to the contact determination section 12a and the alarm control section 12b.

The information acquisition unit 21a acquires the vehicle position detected by the vehicle-side GPS reception device 53 from the in-vehicle communication device 3 via the communication unit 23, and acquires the position of the mobile terminal 2 detected by the terminal GPS reception device 57. By acquiring , the positional relationship between the vehicle and the mobile terminal 2 is acquired.

The terminal-side acquisition unit 21b is similar to the terminal-side acquisition unit 21b described in the fourth modification of the second embodiment, and is provided in the mobile terminal 2. Then, the terminal-side acquisition unit 21b acquires the terminal usage status from a control device (not shown) of the mobile terminal 2 that manages the terminal usage status.

The contact determination unit 22a performs a contact determination to determine whether the vehicle and the terminal holder will come into contact with each other based on the positional relationship acquired by the information acquisition unit 21a.

When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the alarm control unit 22b selects one of the plurality of alarm modes that is associated in advance with the terminal usage state acquired by the terminal side acquisition unit 21b. Select alarm mode. Then, the alarm control unit 22b controls the alarm of the terminal display device 51d and the terminal audio output device 51e in the selected alarm mode.

<Operation>
FIG. 18 is a flowchart showing the operation of the vehicle device according to the fourth embodiment.

In step S21, the GPS receiving device 53 detects the position of the vehicle.

In step S22, the in-vehicle communication device 3 transmits the vehicle position detected in step S21 and the vehicle ID to the mobile terminal 2 near the vehicle. After that, the process returns to step S21.

FIG. 19 is a flowchart showing the operation of the alarm control device 1 according to the fourth embodiment.

In step S31, the information acquisition unit 21a acquires the position of the mobile terminal 2 detected by the terminal GPS receiving device 57.

In step S<b>32 , the information acquisition unit 21 a acquires (receives) the vehicle position and ID transmitted from the in-vehicle communication device 3 via the communication unit 13 . Through the above steps S31 and S32, the information acquisition unit 21a acquires the positional relationship between the vehicle and the mobile terminal 2.

In step S33, the contact determination unit 22a performs contact determination based on the positional relationship acquired by the information acquisition unit 21a. If it is determined in the contact determination that the vehicle and the terminal holder will come into contact with each other, the process proceeds to step S34, and if it is determined in the contact determination that the vehicle and the terminal holder do not come into contact with each other, the process continues. Return to step S31.

In step S34, the terminal-side acquisition unit 21b acquires the terminal usage status of the terminal owner.

In step S35, the alarm control unit 22b determines whether the terminal usage state acquired by the terminal side acquisition unit 21b is a non-use state, a display usage state, or an audio usage state. If it is determined that the terminal usage state is the non-use state, the process proceeds to step S36, and if it is determined that the terminal usage state is the display use state, the process proceeds to step S37, and the terminal usage state is determined to be the display use state. If it is determined that the voice is being used, the process advances to step S38.

In step S36, the alarm control unit 22b controls the alarm of the alarm device 51 on the mobile terminal 2 side in an alarm mode previously associated with the non-use state. After that, the process returns to step S31.

In step S37, the alarm control unit 22b controls the alarm of the alarm device 51 on the mobile terminal 2 side in an alarm mode that is previously associated with the display usage state. After that, the process returns to step S31.

In step S38, the alarm control unit 22b controls the alarm of the alarm device 51 on the mobile terminal 2 side in an alarm mode that is previously associated with the voice usage state. After that, the process returns to step S31.

<Summary of Embodiment 4>
According to the alarm control device 1 according to the fourth embodiment as described above, a contact determination is performed, and when it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, the obtained terminal usage state is The alarm of the alarm device 51 on the mobile terminal 2 side is controlled in the alarm mode associated with the mobile terminal 2 in advance. According to such a configuration, the same effects as in the third embodiment can be obtained.

<Modification of Embodiment 4>
Each modification of the second embodiment may be applied to the fourth embodiment. For example, in the fourth embodiment, as in the second modification of the second embodiment (FIG. 9), the information acquisition unit 21a uses the time series of the vehicle position detected by the GPS receiving device 53 as the vehicle movement information. The information may be acquired from the in-vehicle communication device 3 via the communication unit 13. Further, the information acquisition unit 21a may acquire time-series information on the position of the mobile terminal 2 from the terminal GPS receiving device 57 as the movement information of the mobile terminal 2. The contact determination unit 22a may perform contact determination based on the positional relationship between the vehicle and the mobile terminal 2, the movement information of the vehicle, and the movement information of the mobile terminal 2 acquired by the information acquisition unit 21a.

Further, in the second embodiment, the alarm control device 1 and the vehicle-side alarm device 51 are provided in the vehicle. In the third embodiment, the alarm control device 1 is provided in the vehicle, and the alarm device 51 on the mobile terminal 2 side is provided in the mobile terminal 2. In the fourth embodiment, the alarm control device 1 and the alarm device 51 on the portable terminal 2 side are provided in the portable terminal 2. Similarly to these, the alarm control device 1 may be provided in the mobile terminal 2, and the vehicle-side alarm device 51 may be provided in the vehicle.

<Other variations>
The acquisition unit 11 and control unit 12 in FIG. 1 described above are hereinafter referred to as "acquisition unit 11 etc." The acquisition unit 11 and the like are realized by a processing circuit 81 shown in FIG. That is, the processing circuit 81 includes an acquisition unit 11 that acquires the positional relationship between the vehicle and the mobile terminal, and the usage status of the mobile terminal, which is the usage status of the mobile terminal by the owner of the mobile terminal; A contact determination is made based on the positional relationship, and when it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, one of the plurality of alarm modes is associated in advance with the terminal usage state acquired by the acquisition unit 11. and a control unit 12 that controls the alarm of the alarm device 51 in the selected alarm mode. Dedicated hardware may be applied to the processing circuit 81, or a processor that executes a program stored in a memory may be applied. Examples of the processor include a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a DSP (Digital Signal Processor).

When the processing circuit 81 is dedicated hardware, the processing circuit 81 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), or an FPGA (Field Programmable Gate). Array), or a combination of these. The functions of each unit such as the acquisition unit 11 may be realized by a circuit in which processing circuits are distributed, or the functions of each unit may be realized by a single processing circuit.

When the processing circuit 81 is a processor, the functions of the acquisition unit 11 and the like are realized in combination with software and the like. Note that software and the like correspond to, for example, software, firmware, or software and firmware. Software etc. are written as programs and stored in memory. As shown in FIG. 21, a processor 82 applied to a processing circuit 81 realizes the functions of each part by reading and executing a program stored in a memory 83. That is, when executed by the processing circuit 81, the alarm control device 1 acquires the positional relationship between the vehicle and the mobile terminal, and the terminal usage state that is the usage state of the mobile terminal by the terminal owner of the mobile terminal. Then, a contact determination is made based on the acquired positional relationship, and when it is determined that the vehicle and the terminal holder will come into contact with each other in the collision determination, the terminal usage state acquired by the acquisition unit is selected from among the multiple alarm modes. A memory 83 is provided for storing a program that will result in the execution of the step of controlling the alarm of the alarm device 51 in an alarm mode associated with the alarm mode in advance. In other words, this program can be said to cause the computer to execute the procedures and methods of the acquisition unit 11 and the like. Here, the memory 83 is a non-volatile or Volatile semiconductor memory, HDD (Hard Disk Drive), magnetic disk, flexible disk, optical disk, compact disk, mini disk, DVD (Digital Versatile Disc), their drive device, etc., or any storage medium that will be used in the future. It's okay.

The configuration in which each function of the acquisition unit 11 and the like is realized by either hardware or software has been described above. However, the present invention is not limited to this, and a configuration may be adopted in which a part of the acquisition unit 11 and the like is realized by dedicated hardware, and another part is realized by software or the like. For example, the function of the acquisition unit 11 is realized by a processing circuit 81 as dedicated hardware, an interface, a receiver, etc., and for other functions, the processing circuit 81 as a processor 82 reads out a program stored in the memory 83. It is possible to realize the function by executing it.

As described above, the processing circuit 81 can realize each of the above functions using hardware, software, etc., or a combination thereof.

Further, the alarm control device 1 described above is installed in a vehicle device such as an in-vehicle infotainment device, a communication terminal including a mobile terminal such as a mobile phone, a smartphone, and a tablet, and at least one of the vehicle device and the communication terminal. The present invention can also be applied to an alarm control system constructed as a system by appropriately combining application functions and servers. In this case, each function or each component of the alarm control device 1 explained above may be distributed and arranged in each device constructing the system, or may be arranged centrally in any one of the devices. good.

FIG. 22 is a block diagram showing the configuration of the server 91 according to this modification. The server 91 in FIG. 22 includes a communication section 91a and a control section 91b, and is capable of wirelessly communicating with the vehicle device 93 of the vehicle 92 and the mobile terminal 94.

The communication unit 91a, which is an acquisition unit, performs wireless communication with at least one of the vehicle device 93 and the mobile terminal 94, thereby determining the positional relationship between the vehicle 92 and the mobile terminal 94, and the information on the mobile terminal 94 carried by the terminal holder. The terminal usage status, which is the usage status of the terminal 94, is received.

The control unit 91b has the same function as the control unit 12 in FIG. 1 by a processor (not shown) of the server 91 executing a program stored in a memory (not shown) of the server 91. That is, the control unit 91b performs contact determination based on the positional relationship received by the communication unit 91a. Then, when it is determined in the contact determination that the vehicle 92 and the terminal holder will come into contact with each other, the control section 91b selects one of the plurality of alarm modes that is associated with the terminal usage state received by the communication section 91a in advance. In alarm mode, generate a control signal to control the alarm of the alarm device. Note that the alarm device here is provided in at least one of the vehicle 92 and the mobile terminal 94. The communication unit 91a then transmits the control signal generated by the control unit 91b to at least one of the vehicle 92 and the mobile terminal 94. According to the server 91 configured in this way, the same effects as the alarm control device 1 described in the first embodiment can be obtained.

Note that it is possible to freely combine each embodiment and each modification, or to modify or omit each embodiment and each modification as appropriate.

The above description is in all respects illustrative and not restrictive. It is understood that countless variations not illustrated may be envisioned.

Reference Signs List 1 alarm control device, 2 mobile terminal, 11 acquisition unit, 12 control unit, 21b terminal side acquisition unit, 51 alarm device.

Claims (14)

an acquisition unit that acquires a positional relationship between the vehicle and the mobile terminal, and a terminal usage state that is a usage state of the mobile terminal by a terminal holder of the mobile terminal;
Based on the positional relationship acquired by the acquisition unit, a contact determination is made to determine whether the vehicle and the terminal holder come into contact with each other, and in the contact determination, the vehicle and the terminal holder When it is determined that they will come into contact with each other, an alarm of an alarm device mounted on the vehicle is controlled in an alarm mode that is associated in advance with the terminal usage state acquired by the acquisition unit from among a plurality of alarm modes. It is equipped with a control section ,
The control unit controls the alarm of the alarm device by displaying a vehicle display object indicating the vehicle, and a display object indicating the terminal usage state of the terminal holder at the terminal holder's position around the vehicle display object. An alarm control device that causes the alarm device to display the following . an acquisition unit that acquires a positional relationship between the vehicle and the mobile terminal, and a terminal usage state that is a usage state of the mobile terminal by a terminal holder of the mobile terminal;
Based on the positional relationship acquired by the acquisition unit, a contact determination is made to determine whether the vehicle and the terminal holder come into contact with each other, and in the contact determination, the vehicle and the terminal holder and a control unit that controls the alarm of the alarm device in an alarm mode that is associated in advance with the terminal usage state acquired by the acquisition unit from among a plurality of alarm modes when it is determined that the terminals come into contact with each other,
The acquisition unit further acquires an area where the vehicle and the mobile terminal are located,
The area includes an unclear area where the distinction between the road and the sidewalk is not clear and vehicles and pedestrians coexist, and a clear area where the distinction between the road and the sidewalk is clear,
The control unit includes:
When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, one of the plurality of warning modes is selected in advance from among the plurality of warning modes, which is associated with the terminal usage state and the area acquired by the acquisition unit. controlling the alarm of the alarm device in an alarm mode ;
The control unit controls the alarm of the alarm device by displaying a vehicle display object indicating the vehicle, and a display object indicating the terminal usage state of the terminal holder at the terminal holder's position around the vehicle display object. An alarm control device that causes the alarm device to display the following . The alarm control device according to claim 1 or 2 ,
The acquisition unit includes:
further acquiring movement information of the vehicle and movement information of the mobile terminal;
The control unit includes:
An alarm control device that performs the contact determination based on the positional relationship, movement information of the vehicle, and movement information of the mobile terminal acquired by the acquisition unit. The alarm control device according to claim 1 or 2 ,
The acquisition unit includes:
further acquiring relative movement information that is movement information of the mobile terminal with respect to the vehicle based on an image of the terminal holder outside the vehicle taken in the vehicle;
The control unit includes:
An alarm control device that performs the contact determination based on the positional relationship acquired by the acquisition unit and relative movement information of the mobile terminal. The alarm control device according to claim 1 or 2 ,
The acquisition unit includes:
An alarm control device that acquires the usage status of the terminal based on an image of the terminal holder outside the vehicle taken in the vehicle. The alarm control device according to claim 1 or 2 ,
The acquisition unit includes:
An alarm control device including a terminal-side acquisition unit that is provided in the mobile terminal and acquires the usage status of the terminal. The alarm control device according to claim 1 or 2 ,
The acquisition unit includes:
further obtaining a surrounding caution level indicating the degree to which the terminal holder is careful about the surroundings of the terminal holder based on an image of the terminal holder outside the vehicle taken in the vehicle;
The control unit includes:
When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, one of the plurality of warning modes is associated in advance with the terminal usage state and the surrounding caution level acquired by the acquisition unit. An alarm control device that controls an alarm of the alarm device in a set alarm mode. The alarm control device according to claim 1,
The acquisition unit further acquires an area where the vehicle and the mobile terminal are located,
The control unit includes:
An alarm control device that controls issuing and stopping of an alarm of the alarm device based on the area acquired by the acquisition unit and the result of the contact determination. The alarm control device according to claim 1,
The acquisition unit further acquires an area where the vehicle and the mobile terminal are located,
The control unit includes:
When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, one of the plurality of warning modes is selected in advance from among the plurality of warning modes, which is associated with the terminal usage state and the area acquired by the acquisition unit. An alarm control device that controls an alarm of the alarm device in an alarm mode. The alarm control device according to claim 1 or 2 ,
The acquisition unit further acquires the traveling speed of the vehicle,
The control unit includes:
An alarm control device that controls issuing and stopping of an alarm of the alarm device based on the traveling speed acquired by the acquisition unit and the result of the contact determination. The alarm control device according to claim 1 or 2 ,
The acquisition unit further acquires the traveling speed of the vehicle,
The control unit includes:
When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, one of the plurality of warning modes is set in advance to be associated with the terminal usage state and the traveling speed acquired by the acquisition unit. An alarm control device that controls an alarm of the alarm device in an alarm mode. The alarm control device according to claim 1 or 2 ,
An alarm control device, wherein the timings of the alarms used in the plurality of alarm modes are different from each other. obtaining the positional relationship between the vehicle and the mobile terminal, and the usage status of the mobile terminal, which is the usage status of the mobile terminal by the terminal holder of the mobile terminal;
Based on the acquired positional relationship, a contact determination is made to determine whether or not the vehicle and the terminal holder will come into contact with each other, and in the contact determination, it is determined that the vehicle and the terminal holder will come into contact with each other. control an alarm of an alarm device mounted on the vehicle in an alarm mode that is associated in advance with the acquired terminal usage state from among a plurality of alarm modes;
To control the alarm of the alarm device, the alarm device displays a vehicle display object indicating the vehicle and a display object indicating the terminal usage state of the terminal holder at the terminal holder's position around the vehicle display object. Alarm control method to display on . obtaining the positional relationship between the vehicle and the mobile terminal, and the usage status of the mobile terminal, which is the usage status of the mobile terminal by the terminal holder of the mobile terminal;
Based on the acquired positional relationship, a contact determination is made to determine whether or not the vehicle and the terminal holder will come into contact with each other, and in the contact determination, it is determined that the vehicle and the terminal holder will come into contact with each other. control the alarm of the alarm device in an alarm mode associated in advance with the acquired terminal usage state from among the plural alarm modes,
further acquiring an area where the vehicle and the mobile terminal are located;
The area includes an unclear area where the distinction between the road and the sidewalk is not clear and vehicles and pedestrians coexist, and a clear area where the distinction between the road and the sidewalk is clear,
When it is determined that the vehicle and the terminal holder will come into contact with each other in the contact determination, an alarm mode that is associated in advance with the acquired terminal usage state and the area from among the plurality of alarm modes is used. Control the alarm of the alarm device,
To control the alarm of the alarm device, the alarm device displays a vehicle display object indicating the vehicle and a display object indicating the terminal usage state of the terminal holder at the terminal holder's position around the vehicle display object. Alarm control method to display on .

Images