JP2015001776A - Driving support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving support device capable of appropriately supporting driving of a vehicle by a driver whose auditory function is reduced.SOLUTION: Caution sound is recognized from the sound detected outside and inside a vehicle, and a generation source and a generation direction of the caution sound are detected. A driver is notified of the generation of a caution event by a notification sensuously perceptible to the driver, and further visually notified of the detected generation source and the detected generation direction of the caution sound.

Description

  The present invention relates to a driving support device that supports driving of a vehicle by a driver whose hearing function has deteriorated, such as a hearing impaired person or an elderly person.

In recent years, it has become possible for severely hearing impaired people who cannot hear any sound to obtain a driver's license.
However, in actual driving situations, a driver with hearing impairment may not be aware of an ambulance approaching from behind the vehicle, or may be unaware of a horn (alarm) emitted from the vehicle behind him when changing course. Fully assumed.

  For example, Patent Document 1 discloses an in-vehicle system that detects a siren sound emitted from an emergency vehicle, determines the distance and direction from the own vehicle to the emergency vehicle, and the type of the emergency vehicle based on the siren sound, and notifies the driver. An emergency vehicle notification system is disclosed. Since the siren sound is automatically detected from the outside sound, it is possible to make the driver recognize the approach of the emergency vehicle even in a situation where it is difficult to hear the outside sound. Therefore, this system can also serve as driving assistance for the hearing impaired.

Japanese Patent Laid-Open No. 11-48886

When a driver with reduced hearing function drives a vehicle, it is necessary to display a hearing-impaired person sign or an elderly person sign at a position where it can be seen from outside the vehicle.
If such a sign is displayed, the driver of the vehicle traveling around the vehicle generally drives in consideration that the driver cannot take the same driving action as that of a healthy person with respect to an alarm sound or the like. . Thereby, it can drive | operate, without mutually obstructing driving | running | working of a vehicle.

  However, if the sign is difficult to see in a dark place, or if the driver of the surrounding vehicle is not aware of the sign, such as coming out of the driver's viewing angle, driving with reduced hearing function I cannot keep in mind that it is a vehicle of a person. In this case, driving with the expectation that the warning sound will take the same driving behavior as that of a healthy person causes accidents due to unexpected driving behavior.

On the other hand, if the driver whose auditory function is reduced can recognize an alarm sound from a surrounding vehicle, the driver can take the same driving action as that of a healthy person.
However, as shown in Patent Document 1, simply displaying the approach of an emergency vehicle on a map screen of a display device cannot focus on visual recognition while driving, and thus delays the driver's notice of hearing function. There is.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to obtain a driving support device that can accurately support driving of a vehicle by a driver whose auditory function has deteriorated.

  A driving support device according to the present invention includes a sound detection unit that detects a sound inside and outside a vehicle, and a caution event detection that recognizes a caution sound from the sound detected by the sound detection unit and detects a generation source and a generation direction of the caution sound. A first notification unit that performs notification that can be perceived by the driver, a second notification unit that provides visual notification to the driver, and a first notification unit that controls the attention event. A driving support control unit that notifies the driver of the occurrence and controls the second notification unit to notify the driver of the generation source and direction of the attention sound detected by the attention event detection unit.

  According to the present invention, there is an effect that it is possible to accurately support driving of a vehicle by a driver whose auditory function is reduced.

It is a block diagram which shows the structure of the driving assistance apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the acoustic pattern of the acoustic model registered into an acoustic model database. It is a figure which shows an example of the notification by a 1st notification part and a 2nd notification part. 4 is a flowchart illustrating an operation of the driving support apparatus according to the first embodiment. It is a figure which shows the example of notification of the approach of an emergency vehicle by the 1st and 2nd notification part. It is a figure which shows an example of the notification by LED which is a 1st notification part. It is a figure which shows the 3rd notification part which performs a visual notification to the driver | operator of the vehicle around the own vehicle.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing the configuration of the driving support apparatus according to Embodiment 1 of the present invention. In FIG. 1, a driving support device 1 is a driving support device that is mounted on a vehicle and supports driving by a driver whose auditory function has deteriorated, and includes a microphone 2, an amplifier 3, an ADC (A / D converter) 4, and a caution. An event detection unit 5, a driving support control unit 6, and a notification unit 7 are provided.
The microphone 2 is a microphone that collects sound inside and outside the vehicle, and the amplifier 3 is an amplifier that amplifies the sound signal collected by the microphone 2. The ADC 4 performs analog / digital conversion on the sound signal amplified by the amplifier 3. The microphone 2, the amplifier 3, and the ADC 4 function as a sound detection unit that detects sounds inside and outside the vehicle.

The caution event detection unit 5 is a caution event detection unit that recognizes the caution sound from the sound signal digitally converted by the ADC 4 and detects the generation source of the caution sound and the generation direction of the caution sound.
A caution sound is a sound or non-sound that should be noted when a driver who has reduced hearing function actually drives. For example, a warning alarm that is reported due to a failure of the host vehicle or a stop from a police car Examples include advisory voices, emergency vehicle sirens, level crossings, and horns from surrounding vehicles.

In the present invention, the voice is a human voice that can be understood as meaning, for example, the stop recommendation voice described above.
Non-speech means meaningless human voices and sounds, such as screams, screams, buzzer sounds, destructive sounds, and siren sounds.
Sources of caution sounds are people, vehicles, and features that generate caution sounds. For example, a crossing sound is a railroad crossing, a peeping sound is an ambulance, and a horn is a surrounding vehicle.

The attention event detection unit 5 includes a sound recognition unit 50 and a direction detection unit 51.
The sound recognition unit 50 recognizes a caution sound from the sound signal digitally converted by the ADC 4, and includes a feature sound extraction unit 500, a pattern matching unit 501, and an acoustic model DB (database) 502 as its configuration.

  The feature sound extraction unit 500 extracts an acoustic signal of the sound signal digitally converted by the ADC 4. For example, a section of sound having a sound pressure level exceeding a predetermined range is extracted from the digital data of the sound signal as an acoustic signal characterizing the sound signal.

  The pattern matching unit 501 performs pattern matching of the acoustic signal extracted by the feature sound extraction unit 500 with the acoustic model registered in the acoustic model DB 502, thereby discriminating the generation of the caution sound and the generation source of the caution sound. The source of the caution sound can be determined if there is a caution sound that best matches the acoustic signal of the outside sound among the acoustic models of the caution sound for each source. .

The acoustic model DB 502 is a database in which acoustic models of attention sounds for each generation source are registered. Here, the acoustic model is an acoustic pattern for each phoneme of the attention sound, and is provided for each source of the attention sound. When a driver whose auditory function is deteriorated actually drives, if a caution event accompanied by a caution sound occurs, there is a possibility that this will be delayed and troublesome.
For example, it is necessary to urgently deal with caution sounds such as vehicle horns, vehicle warning alarms, ambulance sirens, police car sirens, fire truck sirens, crossing sounds, etc., which are reported when the vehicle horns are broken, as shown in FIG. is there.
As shown in FIG. 2, these caution sounds have a fundamental frequency, a sound pressure level to be held within a predetermined position range from the vehicle, a kind of sound, a repetition cycle, and the like. An acoustic model is created with an acoustic pattern having these characteristics and registered in the acoustic model DB 502.
Note that non-speech caution sounds such as alarms and sirens can be recognized with high accuracy because they are composed of single sounds or intermittent sounds. It is also easy to add a new acoustic model of attention sound.

  The direction detection unit 51 is a direction detection unit that detects the direction in which the caution sound is generated based on the detected input level of the caution sound. For example, the microphones 2 are arranged inside and outside the vehicle (right front part, right side part, right rear part, left front part, left side part, left rear part with respect to the traveling direction of the vehicle). The direction of the microphone 2 having the highest input level among the sounded caution sounds is detected as the direction in which the caution sound is generated.

The driving support control unit 6 controls the LED 7a and the vibration unit 7b to notify the driver of the occurrence of the caution event, and controls the display unit 7c to generate the caution sound generated by the caution event detection unit 5 and the generation direction thereof. To the driver.
LED7a of the notification part 7 is a light emission part arrange | positioned ahead of the driver's seat in a vehicle, as shown in FIG.3 (b), and a driver | operator can visually recognize the light emission state easily. For example, if a specific notification content is associated with the light emission state of the LED 7a, the driver can recognize the notification content sensuously.
The vibration unit 7b of the notification unit 7 is a vibration unit that applies vibrations to the driver, and is realized by, for example, a vibrator built in the seat belt as illustrated in FIG.
As in the case of the LED 7a, if the specific notification content is associated with the occurrence of vibration, the driver can recognize the notification content sensuously.
As described above, the LED 7a and the vibration unit 7b are a first notification unit that performs notification that the driver can perceive sensibly other than hearing, and the driving support control unit 6 controls the LED 7a and the vibration unit 7b to be careful. Notify the driver of the occurrence of the event. As a result, it is possible to accurately notify the driver who has deteriorated hearing function of the occurrence of the attention event.

  In addition, the display unit 7c of the notification unit 7 is a display unit that displays an image indicating the generation source of the caution sound and the direction in which the caution sound is generated, and uses a monitor of a navigation device disposed in front of the driver's seat in the vehicle. May be. For example, as shown in FIG. 3A, a notification screen 8 on which marks 8a to 8f for each source of attention sound, a direction mark 8g indicating the direction in which the attention sound is generated, and a message entry field 8h are displayed. To do.

The horn mark 8a indicates that the caution sound is a horn, and the horn is sounded from another vehicle. The own vehicle abnormality mark 8b indicates that a warning sound is a vehicle warning alarm and that a failure has occurred in the own vehicle. Further, the level crossing mark 8c indicates that the warning sound is a level crossing sound and that the host vehicle has approached the level crossing.
The ambulance mark 8d indicates that the caution sound is an emergency siren and the ambulance is approaching the host vehicle. The police car mark 8e indicates that the warning sound is a police car siren, and the police car is approaching the host vehicle. The fire truck mark 8f indicates that the warning sound is a siren of the fire truck, and the fire truck is approaching the host vehicle.
As shown in FIG. 3A, the direction mark 8g includes an image mark imitating the own vehicle, and arrow marks indicating the direction in which a caution sound is generated with respect to the surrounding vehicle (front / rear, left / right, left / right front, left / right rear). It consists of.
Thus, the display unit 7c is a second notification unit that visually notifies the driver, and the driving support control unit 6 controls the display unit 7c to detect the attention sound detected by the attention event detection unit 5. The driver is notified of the source and direction of the vehicle. Thereby, it is possible to notify the detailed content of the attention event that has occurred to the driver whose auditory function has deteriorated.

Further, the driving support control unit 6 determines the driving action to be performed by the host vehicle based on the source of the attention sound detected by the attention event detection unit 5 and the direction in which the attention sound is generated, and controls the display unit 7c to automatically Notify the driver of the driving action to be performed on the vehicle.
For example, the driving behavior to be performed in the host vehicle is determined with reference to preset table data in association with the vehicle situation specified from the source of the caution sound and the direction of the caution sound.
When an ambulance is approaching from behind the host vehicle, a driving action of “slowing the vehicle toward the left end of the road while moving slowly” is set in text data or the like.
Note that the text data indicating the driving action to be performed by the host vehicle is described in the message entry field 8h on the notification screen shown in FIG. As a result, the driver can take an accurate driving action with respect to the generated attention event.

Note that the caution event detection unit 5 and the driving support control unit 6 are executed by, for example, a microcomputer mounted on an information processing device that functions as the driving support device 1 executing a program describing processing unique to the present invention. It is realized as a specific means in which hardware and software cooperate.
The acoustic model DB 502 may be constructed in a storage device such as a hard disk device (HDD) installed in the driving support device 1, but an external device (such as a sound recognition unit 50 that can communicate and connect to appropriately read data). For example, you may build in the memory | storage device with which the server on a network, a smart phone, etc.) are equipped.

Next, the operation will be described.
FIG. 4 is a flowchart showing the operation of the driving support apparatus according to the first embodiment.
First, while the driver whose auditory function has decreased is driving the vehicle, the microphone 2 collects sounds inside and outside the vehicle. The sound signal collected by the microphone 2 is amplified by the amplifier 3 and then converted into a digital signal by the ADC 4.
The attention event detection unit 5 recognizes the attention sound from the sound signal digitally converted by the ADC 4, thereby detecting the source of the attention sound and the direction in which the attention sound is generated (step ST1).
If no attention event has occurred (step ST1; NO), the process returns to step ST1 and the above detection process is repeated.

When the attention event occurs and is detected (step ST1; YES), the attention event detection unit 5 outputs the detected source of the attention sound and the direction in which the attention sound is generated to the driving support control unit 6.
The driving support control unit 6 controls the LED 7a and the vibration unit 7b as driving support for the driver based on the generation source and the generation direction of the attention event detected by the attention event detection unit 5. And the driver is notified of the generation source and direction of the caution sound detected by the caution event detection unit 5 by controlling the display unit 7c (step ST2).

For example, as shown in FIG. 5B, the driver is notified of the occurrence of a caution event by an alert caused by the light emission of the LED 7a and a seat belt vibration by the vibration unit 7b.
Further, as shown in FIG. 5A, a mark indicating the source of the caution sound and a mark indicating the direction of the caution sound are displayed on the display unit 7c. Here, the ambulance mark 8d is the highlighted area 9, and the direction mark 8g indicating the rear of the host vehicle is the highlighted area 10. As a result, the driver can recognize that the ambulance is approaching from behind the host vehicle even if the driver cannot hear the sound outside the vehicle.
In the message entry field 8h, exercise behavior to be performed by the own vehicle with respect to this attention event is described. In other words, by visually recognizing the content of “Please bring the car to the left end while slowing down,” the driver immediately executes the correct driving action for the caution event that “the ambulance is approaching from behind the vehicle”. can do.

In the highlight areas 9 and 10, for example, it is easy to visually recognize the difference from other marks such as causing the outline of the mark to emit light, blinking, changing the color of the mark itself, and displaying a frame surrounding the mark. Display mode.
In addition, when the own vehicle abnormality mark 8b becomes the highlight area 9, a warning alarm sounds in the own vehicle, and therefore the mark imitating the own vehicle becomes the highlighted area 10 in the direction mark 8 g.

  Moreover, you may perform the notification by LED7a and the vibration part 7b, and the notification by the display part 7c simultaneously. In this way, when the driver is sensibly notified of the occurrence of a caution event accompanied by a caution sound, the detailed content is visually notified. This makes it possible to grasp an attention event instantaneously.

  You may perform the notification by the display part 7c, after performing notification by LED7a and the vibration part 7b. In this case, the driver can know the detailed contents after recognizing the occurrence of the caution event accompanied by the caution sound. For this reason, the response to the attention event can be determined step by step, and a calm determination can be made.

Moreover, the driving assistance control part 6 may make LED7a light-emit in a different aspect according to the emergency level of a caution event. For example, as shown in FIG. 6, the emission color is changed according to the urgency of the attention event.
In this case, the direction detection unit 51 of the caution event detection unit 5 accumulates the input level of the caution sound detected by the microphone 2 to obtain a change with time, and based on this change with time, the source of the caution sound for the host vehicle The approximate distance is determined, and the urgency is determined according to the distance from the vehicle to the source of the caution sound. Based on this urgency level, the driving support control unit 6 controls the LED 7a to give notification according to the urgency level of the attention event.

In the example shown in FIG. 6, when the degree of urgency is low, that is, when an event has occurred but it is determined that there is no need to respond immediately, the LED 7 a is lit in green.
Further, when the degree of urgency is medium, that is, when an event has occurred and it is determined that the next action needs to be prepared, the LED 7a is made to emit orange light.
Further, when the degree of urgency is high, that is, when an event has occurred and it is determined that the next action needs to be promptly handled, the LED 7a is caused to emit red light.
In this way, the driver can sensuously recognize the urgency of the attention event that has occurred. Although the case where the emission color is changed according to the urgency level of the caution event has been shown, the blinking pattern may be changed or the emission luminance may be changed.

In the above description, the case where the LED 7a and the vibration unit 7b are used as the first notification unit that performs notification that can be perceived by the driver has been described. The notification unit is not limited to these as long as it performs the notification.
For example, instead of the vibration part 7b, an electric stimulus may be given to the driver, or a part of the body may be pushed.

FIG. 7 is a diagram illustrating a third notification unit that visually notifies a driver of a vehicle around the host vehicle. For example, as shown in FIG. 7A, the vehicle outside LED 11 is provided outside the vehicle A (left and right front, left and right, left and right rear), and the driving support control unit 6 controls the vehicle outside LED 11 so that the driver of the vehicle A The driver of the vehicle around the vehicle A is notified that the person has a specific attribute.
In addition, as a person who has a specific attribute, the elderly person and the hearing-impaired person who the auditory function used as the object of the driving assistance which concerns on this invention fell are mentioned.
In FIG. 7A, when the vehicle outside LED 11 is lit or emits light in a predetermined lighting pattern, the driver of the vehicle around the vehicle A is that the driver of the vehicle A is an elderly person or a hearing impaired person. Can be recognized. Accordingly, the driver of the surrounding vehicle can drive without disturbing the traveling of the vehicle because the driver of the surrounding vehicle cannot drive the same driving behavior as that of the healthy person with respect to the alarm sound or the like. .

  In addition, outside LEDs 11a and 11b are provided at the rear of the vehicle A, and the driving support control unit 6 controls the outside LEDs 11a and 11b, thereby indicating that the driver has a specific attribute 12a and 12b. May be illuminated. Here, examples of the sign indicating that the driver is a person having a specific attribute include the hearing impaired person sign 12a and the elderly driver sign 12b. In this way, even when the vehicle A is dark and travels in a place where the signs 12a and 12b are difficult to see, the signs 12a and 12b can be easily seen by the driver of the vehicle around the vehicle A.

  As described above, according to the first embodiment, the microphone 2, the amplifier 3 and the ADC 4 for detecting the sound inside and outside the vehicle, the caution sound is recognized from the sound detected by these, and the source of the caution sound is generated. And an attention event detection unit 5 that detects the direction of occurrence, an LED 7a and a vibration unit 7b that perform notification that can be perceived by the driver, a display unit 7c that provides visual notification to the driver, an LED 7a and a vibration unit. A driving support control unit 6 that controls 7b to notify the driver of the occurrence of a caution event, and controls the display unit 7c to notify the driver of the generation source and direction of the caution sound detected by the caution event detection unit 5. With. By configuring in this way, even if a caution event with a caution sound such as a failure of the own vehicle notified by a warning alarm or the approach of an emergency vehicle that outputs a siren sound occurs, the auditory function deteriorated The driver is sensuously notified of the occurrence of a caution event, and the contents of the caution event are visually notified. Thereby, the driving | operation with respect to an attention event can be supported exactly.

  Further, according to the first embodiment, the driving support control unit 6 determines the driving action to be performed on the own vehicle based on the generation source and direction of the attention sound, and controls the display unit 7c to control the own vehicle. Notify the driver of driving actions to be performed. By doing in this way, the exact driving | operation behavior with respect to the generated attention event can be taken.

  Furthermore, according to the first embodiment, the vehicle outside LED 11 that visually notifies the driver of the vehicle around the host vehicle is provided, and the driving support control unit 6 controls the vehicle outside LED 11 to control the vehicle outside the vehicle. The driver of the vehicle around the host vehicle is notified that the driver has a specific attribute (for example, an elderly person or a hearing-impaired person). In this way, the driver of the surrounding vehicle can drive without disturbing the driving of each other because the driver of the surrounding vehicle cannot drive the same driving behavior as that of the healthy person with respect to the alarm sound. can do.

  Furthermore, according to this Embodiment 1, since the 1st notification part is equipped with LED7a arrange | positioned ahead of the driver's seat in the own vehicle, and the vibration part 7b which gives a vibration to a driver | operator, driving other than hearing Notification can be given to the person.

  Furthermore, according to the first embodiment, the driving support control unit 6 causes the LED 7a to emit light in a different manner depending on the urgency level of the attention event, so that the driver sensibly recognizes the urgency level of the generated attention event. Is possible.

  Furthermore, according to the first embodiment, the second notification unit includes the display unit 7c that displays an image indicating the generation source of the caution sound and the generation direction of the caution sound. It is possible to notify the driver of the contents.

  Further, according to the first embodiment, since the outside LEDs 11a and 11b illuminate the signs 12a and 12b indicating that the driver has a specific attribute, it is difficult for the own vehicle to see the signs 12a and 12b. Even if the vehicle is traveling around the place, the signs 12a and 12b can be easily seen from the driver of the vehicle around the vehicle A.

Furthermore, according to the first embodiment, when the attention event occurs, the driving support control unit 6 performs notification by the LED 7a and the vibration unit 7b and the display unit 7c at the same time, or notification by the LED 7a and the vibration unit 7b. After performing, the notification by the display part 7c is performed.
In this way, when the notification by the LED 7a and the vibration unit 7b and the notification by the display unit 7c are executed at the same time, the detailed contents are obtained when the driver is sensibly notified of the occurrence of a caution event accompanied by a caution sound. Because it is notified visually, it is possible to instantly grasp attention events.
Further, when the notification by the display unit 7c is performed after the notification by the LED 7a and the vibration unit 7b, the driver can know the detailed contents after recognizing the occurrence of the caution event accompanied by the caution sound. . For this reason, the response to the attention event can be determined step by step, and a calm determination can be made.

Furthermore, according to the first embodiment, the attention event detection unit 5 extracts the acoustic signal of the detected sound, and the acoustic model in which the acoustic model of the attention sound for each generation source is registered. DB 502 and a pattern matching unit 501 for discriminating the generation of the caution sound and the source of the caution sound by pattern matching the acoustic signal extracted by the feature sound extraction unit 500 with the acoustic model registered in the acoustic model DB 502 And a direction detection unit 51 that detects the direction in which the caution sound is generated based on the detected input level of the caution sound.
By configuring in this way, it is possible to accurately detect the occurrence and contents of a caution event accompanied by a caution sound such as a failure of the host vehicle notified by a warning alarm or the approach of an emergency vehicle that outputs a siren sound. Can do. In addition, non-speech caution sounds such as alarms and sirens can be recognized with high accuracy because they are composed of single sounds or intermittent sounds. It is also easy to add a new acoustic model of attention sound.

  In the present invention, any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Driving assistance device, 2 Microphone, 3 Amplifier, 4 ADC, 5 Caution event detection part, 6 Driving assistance control part, 7 Notification part, 7a LED, 7b Vibration part, 7c Display part, 8 Notification screen, 8a Crash mark, 8b Automobile error mark, 8c Railroad crossing mark, 8d Ambulance mark, 8e Police car mark, 8f Fire engine mark, 8g Direction mark, 8h Message entry field, 9, 10 Highlight display area, 11, 11a, 11b Outside LED, 12a, 12b Sign , 50 sound recognition unit, 51 direction detection unit, 500 feature sound extraction unit, 501 pattern matching unit, 502 acoustic model DB.

Claims (9)

A sound detector for detecting the sound inside and outside the vehicle;
Recognizing a caution sound from the sound detected by the sound detection unit, and detecting a caution sound generation source and a generation direction;
A first notification unit for providing a notice that can be perceived by the driver;
A second notification unit for providing visual notification to the driver;
The first notification unit is controlled to notify the driver of the occurrence of the caution event, and the second notification unit is controlled to determine the generation source and direction of the caution sound detected by the caution event detection unit. A driving support apparatus comprising a driving support control unit that notifies a driver.   The driving support control unit determines a driving action to be performed by the host vehicle based on a source and a generation direction of the caution sound, and controls the second notification unit to drive the driving action to be performed by the host vehicle. The driving support device according to claim 1, wherein the driving support device is notified to a driver. A third notification unit that visually notifies a driver of a vehicle around the host vehicle;
The driving support control unit controls the third notification unit to notify a driver of a vehicle around the host vehicle that the driver of the host vehicle has a specific attribute. The driving support apparatus according to claim 1, wherein the driving support apparatus is characterized.   The said 1st notification part is provided with the light emission part arrange | positioned ahead of the driver's seat in the own vehicle, and the vibration part which provides a driver | operator with a vibration, Any of Claims 1-3 characterized by the above-mentioned. The driving support device according to claim 1.   The driving support device according to claim 4, wherein the driving support control unit causes the light emitting unit to emit light in a different manner depending on the urgency of the attention event.   The said 2nd notification part is a display part which displays the image which shows the generation | occurrence | production source of the said caution sound, and the generation direction of the said caution sound, The any one of Claims 1-5 characterized by the above-mentioned. The driving support device according to item.   The driving support device according to claim 3, wherein the third notification unit is a light emitting unit that illuminates a sign indicating that the driver has a specific attribute.   When the attention event occurs, the driving support control unit performs notification by the first and second notification units at the same time, or after performing notification by the first notification unit, The driving support apparatus according to claim 1, wherein notification is performed by a notification unit. The attention event detection unit includes:
A feature sound extraction unit for extracting an acoustic signal of the sound detected by the sound detection unit;
An acoustic model database in which acoustic models of attention sounds for each source are registered;
A pattern matching unit that determines the generation of the caution sound and the source of the caution sound by pattern matching the acoustic signal extracted by the feature sound extraction unit with the acoustic model registered in the acoustic model database;
The driving support device according to claim 1, further comprising: a direction detection unit that detects a direction in which the caution sound is generated based on an input level of the caution sound detected by the sound detection unit.

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