WO2014136424A1

WO2014136424A1 - Vehicular sound input control device, and vehicular sound input control method

Info

Publication number: WO2014136424A1
Application number: PCT/JP2014/001140
Authority: WO
Inventors: 遠藤　和彦
Original assignee: 株式会社デンソー
Priority date: 2013-03-06
Filing date: 2014-03-03
Publication date: 2014-09-12
Also published as: JP2014175696A; JP6089799B2

Abstract

A vehicular sound input control device is provided with a control unit (4) that controls sound input directionality by a sound input unit (26) for the input of speech by a vehicle passenger. The control unit controls the sound input directionality in at least two or more directions in the cabin containing a driver's seat (14) and/or a seat (15, 16) other than the driver's seat (14), and an area between the seats, depending on vehicular information acquired in case of emergency.

Description

Vehicle sound input control device and vehicle sound input control method

Cross-reference of related applications

This disclosure is based on Japanese Patent Application No. 2013-44053 filed on March 6, 2013, the contents of which are incorporated herein by reference.

The present invention relates to a vehicle sound input control device and a vehicle sound input control method for controlling an input directivity of sound in a vehicle compartment in an emergency.

Generally, a microphone for a vehicle (for example, an automobile) can switch, for example, a wide directivity characteristic or a narrow directivity characteristic. When the emergency call device is activated, a technology has been proposed in which the control device controls the sound input directivity of the microphone at the driver's seat for a call with the operator of the emergency call center (see, for example, Patent Document 1). In the technique described in Patent Literature 1, although control is performed with a narrow directivity characteristic concentrated on the driver's mouth during normal times, the driver does not always maintain the driving posture during traveling in the event of a vehicle emergency. The directional characteristics of the microphone are controlled so as to collect sound from the area. Thereby, it becomes easy to collect the voice uttered by the driver in an emergency.

JP 2009-124540 A

However, for example, when a vehicle accident occurs, even if the sound input directivity of the microphone is directed only in the direction of the driver's seat, it is not always possible for the driver to be in a conversational state and it is desired to be able to respond flexibly. It is rare.

An object of the present disclosure is to provide a vehicle sound input control device and a vehicle sound input control method that can change sound input directivity flexibly in an emergency.

A vehicle sound input control device according to an aspect of the present disclosure includes a control unit that controls sound input directivity by a sound input unit that inputs an utterance of a vehicle occupant, and the control unit is acquired in an emergency. In accordance with the vehicle information, the sound input directivity is controlled in at least two directions in a vehicle seat including a driver's seat and / or a seat other than the driver's seat and between the seats.

For this reason, for example, even if the driver loses his mind in an emergency and is incapable of talking, or even if the driver moves to another seat due to the impact of a collision, for example, other occupants in the passenger compartment can talk If the driver is in a possible state or if the driver moved to another seat or the like can talk, the passenger can talk to the sound input unit. That is, since the control unit controls the sound input directivity, an occupant's voice can be input through the sound input unit in an emergency. Thereby, sound input directivity can be changed flexibly in an emergency.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing
1 is a block diagram schematically illustrating an electrical configuration of an emergency call device and its surroundings according to an embodiment of the present disclosure Plan view schematically showing the installation position of the collision detection sensor and the installation position of the occupant detection sensor Plan view schematically showing the installation position and sound input directivity of a hands-free microphone in the vehicle Flow chart schematically showing normal and emergency flows

Hereinafter, an embodiment applied to an emergency call device 1 that uses a microphone (sound input unit) installed in a vehicle and communicates with an emergency call center outside the vehicle in an emergency will be described with reference to FIGS. To do. FIG. 1 schematically shows an emergency call ECU 2 mounted on a vehicle and electrical components connected to the periphery thereof.

As shown in FIG. 1, the emergency call ECU 2 includes a power supply unit 3, a CPU 4, a satellite positioning module 5, a radio signal processing unit 6, a sound processing unit 7, and the like. The power supply unit 3 receives the power supply + B from the in-vehicle battery 8, converts the power supply voltage to a power supply voltage suitable for each electrical block 3 to 7, and supplies the power supply voltage to each electrical block 3 to 7. The CPU 4 is configured to include a RAM, a flash ROM, an EEPROM (not shown), and the like, executes software stored in the memory, and performs mainly control in the emergency call ECU 2.

The satellite positioning module 5 captures a GPS signal from the GPS satellite 12 and acquires current position information. The radio signal processing unit 6 is a module that enables communication with the base station 9 and communicates with the base station 9 in an emergency, via a wide area communication network (including a mobile communication network and a fixed communication network) 10. The emergency call center 11 is connected to enable data / voice communication. The CPU 4 performs various processes according to the processing signals of the satellite positioning module 5 and the communication signals of the radio signal processing unit 6.

The emergency call ECU 2 inputs a collision signal from the airbag ECU 8. The airbag ECU 8 constitutes an SRS (Supplemental Restraint System) unit, and the airbag ECU 8 includes a collision detection sensor 17, an occupant detection sensor 18, a speed sensor 20 and the like provided with an acceleration sensor 19 that detects a vehicle collision through a bus. Enter sensor information.

In the vehicle 100 of FIG. 2, the airbag 13 is a front portion (driver seat airbag) A1 of the driver seat 14, a right side portion A2 of the driver seat 14, a front portion A3 of the passenger seat 15, and a left side portion of the passenger seat 15. A4, installed at a plurality of locations such as the right side A5 and the left side A6 of the rear seat 16, and a squib (not shown) when the control device of each airbag 13 receives a deployment signal of the airbag 13. By energizing the igniter, the ignition agent is ignited and the airbag 13 is inflated.

As shown in FIG. 2, the collision detection sensor 17 includes, for example, a vehicle front right part A7, a vehicle left front part A8, a driver seat right side part A2, a passenger seat left side part A4, a rear seat right side part A5, and a rear seat. It is installed so as to detect collisions of predetermined portions at a plurality of locations on the left side portion A6, and outputs a sensor signal to the airbag ECU 8.

Further, the airbag ECU 8 inputs occupant detection information from the occupant detection sensor 18. The occupant detection sensor 18 is configured using, for example, a pressure sensor or an ultrasonic sensor. The occupant detection sensor 18 is, for example, a type in which a pressure sensor is installed on the seat surface, as shown by broken lines in FIG. 2, on the seat surfaces of the driver seat 14, the passenger seat 15, and the rear seat 16 in the vehicle 100. is set up. The occupant detection sensor 18 detects occupant information in the vehicle 100 and outputs a sensor signal to the airbag ECU 8.

When the vehicle 100 collides, collision detection information is transmitted from the collision detection sensor 17 to the airbag ECU 8. The airbag ECU 8 determines whether or not each airbag 13 is deployed according to the collision detection information (including acceleration information of the acceleration sensor 19) and the speed information of the speed sensor 20.

When the airbag ECU 8 determines to deploy the airbag 13 at the time of an obstacle collision of the vehicle, the airbag ECU 8 controls the deployment of the airbag 13 to protect the driver and passengers from the impact of the collision. Further, the airbag ECU 8 transmits a deployment signal of the airbag 13 to the emergency notification ECU 2.

As shown in FIG. 1, the emergency call ECU 2 inputs an emergency operation signal from the user from the emergency call switch 21. Normally, when the emergency call switch 21 is not operated, a normal operation signal is input to the emergency call ECU 2. When the communication line with the emergency call switch 21 is disconnected or the communication line is disconnected, the emergency call ECU 2 inputs an abnormal signal indicating this connection abnormality.

When the emergency call switch 21 is operated by the user, the CPU 4 of the emergency call ECU 2 receives the operation signal of the emergency call switch 21 as an emergency call signal. The operation indicator 22 receives the operating state of the emergency call ECU 2 and the connection state of the peripheral devices and notifies the user.

The emergency call ECU 2 includes an in-vehicle LAN interface (not shown), and can connect to the in-vehicle network 23 and receive vehicle information from the other

various ECUs

24 and 25.

The emergency call ECU 2 includes a sound processing unit 7. The sound processing unit 7 is configured by connecting a microphone (corresponding to a sound input unit) 26 and a speaker 27 outside the emergency call ECU 2. The sound processing unit 7 is a block that converts a sound signal and an electrical signal, transmits the sound signal to the speaker 27 to output the sound from the speaker 27, and outputs the sound signal from the microphone 26 (for example, a sound signal emitted by the user). ) To convert to an electrical signal.

Then, the sound processing unit 7 converts this sound signal into an electric signal and outputs it to the CPU 4. The sound processing unit 7 is connected to the audio unit 28. The audio unit 28 may be a unit called a hands-free unit. In normal times (when not in an emergency state), the audio unit 28 controls the microphone 26 and / or the speaker 27 via the CPU 4 and the sound processing unit 7 and shifts to the emergency state. The CPU 4 mainly starts driving the microphone 26 and the speaker 27 via the sound processing unit 7.

In normal and emergency situations, the microphone 26 collects voices uttered by passengers such as drivers. Further, during normal times, the speaker 27 outputs sound information of various multimedia information (DVD, DTV, etc.) by the audio unit 28 and also outputs guidance information (route information, position information) by a navigation device (not shown). In an emergency, the speaker 27 outputs the received voice of the other party of the emergency call center 11 into the vehicle interior of the vehicle 100.

FIG. 3 shows the installation position of the microphone 26 in a plan view and its directivity. In the present embodiment, the hands-free microphone 26 is fixedly installed at one place on an overhead unit (not shown) provided on the top plate of the vehicle 100. A plurality of microphones 26 may be installed in the vehicle interior.

The microphone 26 is configured by adopting an array microphone that can control the sound input directivity to a wide directivity or a narrow directivity. As shown in FIG. 3, the CPU 4 can control the sound input directivity of the microphone 26 to the following several types in a plan view.

The direction in which the sound input directivity of the microphone 26 can be mainly controlled is (1) the direction B1 of the driver seat 14, (2) the intermediate direction B2 between the driver seat 14 and the passenger seat 15, and (3) the direction B3 of the passenger seat 15. (4) Left side direction B4 of the rear seat 16, (5) Center direction B5 of the rear seat 16, (6) Right side direction B6 of the rear seat 16, (7) Center in the passenger compartment (the microphone 26 is installed) Directly below the overhead unit) B7, (8) Between these areas (1) to (7) can be controlled with narrow directivity in the direction.

The operation at normal time and emergency call of the above configuration will be described using the flowchart of FIG. When the engine of the vehicle 100 is started by the user's operation of the ignition switch IG (S1), the power supply unit 3 supplies power to the emergency call ECU 2 to start the ECU 2 (S2). When the ECU 2 is started, it first operates normally (S3). Normally, for example, when the driver has a hands-free conversation with an external call partner, a transition is made to a normal hands-free mode (S4: NO → S5).

The audio unit 28 controls the sound input directivity by controlling the sound collection area (directivity) of the microphone 26 (S6). For example, the sound collection area of the microphone 26 is set in the driver's seat (for example, the driver's mouth assumption). ) Is narrowed to a narrow directivity area ((1) driver seat direction B1 in FIG. 3). Further, the audio unit 28 expands the directivity area toward the passenger seat 15 or the rear seat 16 as necessary.

During the normal operation in this way, for example, when the user accidentally drives and collides with an obstacle, the collision detection sensor 17 reacts, and the collision detection sensor 17 provides the airbag ECU 8 with collision detection information. The airbag ECU 8 determines the deployment or non-deployment of the airbag 13 using the collision detection information. The determination of the deployment of the airbag 13 may be determined including not only the acceleration information of the acceleration sensor 19 but also the speed information of the speed sensor 20.

When the airbag ECU 8 determines that the airbag 13 is to be deployed, the airbag ECU 8 instructs the airbag 13 to deploy. On the other hand, when the emergency call ECU 2 receives the deployment signal of the airbag 13, the emergency call ECU 2 starts the emergency call (S4: YES). In this example, the emergency call ECU 2 automatically activates the emergency call in response to the collision detection. However, even if the emergency call is manually activated in response to the user operation signal of the emergency call switch 21. good.

When the emergency call process is started, the emergency call ECU 2 identifies the current position using the satellite positioning module 5 and identifies the current position of the identified vehicle and vehicle identification information (vehicle number such as VIN or vehicle number plate, use of the vehicle) Emergency call processing is performed by transmitting data to the emergency call center 11 registered in advance through the wide area communication network 10.

When the emergency call center 11 receives the emergency call signal, it notifies the operator of the external organization of the occurrence of the emergency call. Then, an operator receives a relief request and performs necessary assistance. There are various forms of assistance performed between the operator and the user (vehicle occupant). That is, the emergency call ECU 2 calls the emergency call center 11 to connect the telephone line, and after the emergency call ECU 2 transmits the current position of the vehicle 100 and the vehicle identification information to the emergency call center 11, the telephone line is temporarily disconnected. Then, the emergency call center 11 may call back to the emergency call ECU 2 to reconnect the telephone line, and perform a voice call between the user and the operator, or perform data communication without disconnecting the telephone line. You may switch from voice call to voice call.

After activating the emergency call, the emergency call ECU 2 terminates the emergency call to determine whether its own operating state is being transmitted to the emergency call center 11, during data communication, during a voice call, or waiting for an incoming call. Whether or not and the status signal is periodically acquired.

As described above, when the communication with the outside is switched to the voice call, the emergency call ECU 2 shifts to the hands-free mode at the time of emergency call (S8), and the CPU 4 of the emergency call ECU 2 mainly takes the sound input direction of the microphone 26. Sex is controlled (S9). At this time, the CPU 4 of the emergency call ECU 2 detects the occupant detection information of the occupant detection sensor 18, the collision detection information by the collision detection sensor 17 (including the collision direction information indicating which sensor 17 has detected), and the acceleration sensor 19 at the time of the collision. Information on at least one vehicle among the various types of information such as the acceleration information by the speed sensor, the speed information by the speed sensor 20 at the time of the collision, and the information on the deployment signal of each airbag 13 (deployment / non-deployment). The sound input directivity is controlled based on this.

Specifically, the following examples are given.
(1) Control of sound input directivity toward the seat detected by the occupant detection sensor 18 This enables the utterance of the occupant to be input even in an emergency if the sound input directivity is directed to the area where the occupant is detected. This is because the nature is high.
(1-1) Controlling sound input directivity toward the driver's seat 14 when an occupant is detected only in the driver's seat 14 This is an emergency if the sound input directivity of the microphone 26 is directed toward the driver's seat 14 This is because there is a high possibility that an occupant's (especially driver) utterance can be input even at times.
(1-2) When the occupant is detected only in the driver's seat 14 and the passenger seat 15, the sound input directivity is controlled in an intermediate region (for example, the direction B2 in FIG. 3) between the driver's seat 14 and the passenger seat 15. This is because there is a high possibility that an occupant's speech can be input from the driver 14 or the passenger in the passenger seat 15 in an emergency.
(2) Controlling sound input directivity on the side opposite to the collision direction by the collision detection sensor 17 If the sound input directivity is directed to the side opposite to the collision detection side of the collision detection sensor 17, the influence of the collision is avoided. This is because there is a high possibility that the utterance of the occupant will be input.
(2-1) When the collision severity of the collision detection sensor 17 is heavier than the specified value, the sound input directivity is controlled toward the side opposite to the collision detection side. This is because if the sound input directivity is directed to the lighter side, the possibility of inputting the utterance of the occupant avoiding the influence of the severe collision increases.
(2-1-1) When the collision detection sensor 17 detects a collision on the side of the driver's seat 14 on the driver's seat 14 side (the right side portion A2 of the driver's seat in FIG. 2) and the collision severity is heavier than a predetermined value, the passenger seat The sound input directivity is controlled toward 15.

This is a specific example, and when a collision is detected on the right side of the driver's seat 14, it is more likely that an occupant's utterance sitting on the passenger seat 15 can be input if the collision is detected. is there.
(2-1-2) When the collision detection sensor 17 detects a collision in the left side portion A4 on the passenger seat 15 side and the collision severity is heavier than a predetermined value, the sound input directivity is controlled toward the direction B1 of the driver seat 14. To do.

This is a specific example, and when a collision is detected in the left side portion A4 on the passenger seat 15 side, if the sound input directivity is directed to the driver seat 14, the utterance of the passenger sitting in the driver seat 14 is spoken. This is because the possibility of input becomes high.
(3) The above combination example (3-1) The occupant detection sensor 18 detects that the driver seat 14 and the front passenger seat 15 and the rear seat 16 are both seated, and the collision detection sensor 17 When a collision is detected from the front side of the vehicle and this collision severity is detected to be heavier than a predetermined level, an intermediate region between the

front seats

14 and 15 and the rear seat 16 (for example, direction B7 in FIG. 3) or the rear seat 16 The sound input directivity is controlled toward (for example, the direction B4, B5, or B6 in FIG. 3).

This is a specific example, and when a collision is detected on the vehicle front direction side, an intermediate region of the

front seats

14 and 15 and the rear seat 16 on the opposite side (for example, the direction of the central region in the vehicle interior of FIG. 3) This is because it is considered that if the sound input directivity of the microphone 26 is directed to the rear seat 16, the possibility that the occupant's speech can be input becomes higher.
(3-2) The occupant detection sensor 18 detects that both the driver's seat 14 and the front passenger seat 15 are seated, and the collision detection sensor 17 detects a collision on the driver's seat 14 side. Is detected to be lighter than a predetermined value, the sound input directivity is controlled in the direction B1 of the driver seat 14 to the direction B2 between the driver seat 14 and the passenger seat 15.

This is a specific example, and even if a collision is detected on the driver's seat 14 side, when the collision severity is light, the direction is B1 of the driver's seat 14 or the direction B2 between the driver's seat 14 and the passenger seat 15. This is because if the sound input directivity is directed, the possibility that the occupant's speech can be input becomes higher.
(4-1) Change sound input directivity over time For example, even if the CPU 4 controls the sound input directivity in the examples shown in the above (1) to (3), it becomes impossible to input the utterance of the passenger. There is a possibility. For this reason, the CPU 4 of the emergency call ECU 2 changes the sound input directivity in terms of time, and in order of the direction B1 of the driver seat 14, the direction B3 of the passenger seat 15, the directions B4 to B6 of the rear seat 16, and so on. It is better to change the input directivity. Then, the possibility that an occupant's speech can be input in an emergency becomes higher.
(4-2) Change sound input directivity when sound input level is low For example, even if the CPU 4 controls the sound input directivity in the examples shown in the above (1) to (3), May become impossible to input. For this reason, the CPU 4 of the emergency call ECU 2 controls the sound input directivity in a predetermined first direction, and if the sound input level is lower than the predetermined value even after waiting for a predetermined time, the sound input directivity is different from the first direction. It is good to change and control the sex. Then, the possibility that an occupant's speech can be input in an emergency becomes higher. The emergency call ECU 2 controls the input directivity of the microphone 26 in this way while continuing the voice call in an emergency, thereby making it easier to input the utterance of the occupant of the vehicle 100 with the microphone 26.

After an emergency voice call is exchanged between the operator and the user (vehicle occupant), the CPU 4 of the emergency call ECU 2 acquires a state signal of the emergency call voice call end (S10), step S5. To move to the normal hands-free mode. As a result, for example, when the audio power supply 28 can be continuously operated without disconnecting the vehicle power supply, the input directivity control main body of the microphone 26 can be returned to the audio unit 28.

Conventionally, for example, there is a possibility that the driver loses his mind in an emergency and cannot talk, or the driver is skipped to another seat due to the influence of the collision.

In this embodiment, if the sound input directivity of the microphone 26 is fixed in a specific direction, there is a possibility that the occupant's speech sound cannot be input. Therefore, the emergency call ECU 2 detects collision detection information (collision direction information) by the collision detection sensor 17. And the acceleration information by the acceleration sensor 19, the speed information by the speed sensor 20, the occupant detection information by the occupant detection sensor 18, and the deployment signal information (deployment / non-deployment) of each airbag 13 are acquired. In accordance with the above vehicle information, the input directivity of the microphone 26 is controlled in at least two directions including the driver's seat 14 and / or the area other than the driver's seat 14. Thereby, the sound input directivity of the microphone 26 can be changed flexibly, and it becomes easy to input the utterance sound of the occupant through the microphone 26 in an emergency.

(Modification)
The present disclosure is not limited to the above-described embodiments, and for example, the following modifications or expansions are possible.

In addition, although the example in which the airbag 13 is mounted at a plurality of locations in the vehicle has been given, there is a vehicle type in which the airbag 13 is not mounted. Therefore, the sound input directivity of the microphone 26 may be controlled by taking the presence or absence of the airbag 13 into consideration or at least one of the above considerations.

In the above-described embodiment, the sound input directivity is shown in a plane. However, when the occupant sits on each of the seats 14 to 16, the directivity may be directed to the mouth in consideration of the standard physique and posture. The sound input directivity may be directed to various positions in consideration of an emergency (for example, considering that an occupant lies on each seat and near the seating surfaces of the seats 14 to 16).

Claims

In a vehicle sound input control device including a control unit (4) for controlling sound input directivity by a sound input unit (26) for inputting a speech of a vehicle occupant,
The control unit (4)
Sound input directivity in at least two directions in the vehicle seat including the driver's seat (14) and / or the seats (15, 16) other than the driver's seat (14) and the space between the seats according to the vehicle information acquired in an emergency. Sound input control device for vehicles.
The sound input control device for a vehicle according to claim 1,
The control unit (4)
Direction (B1 to B7) of seats (14 to 16) in the passenger compartment located on the opposite side of the collision detection side detected by the collision direction detection unit (17) that detects the vehicle collision direction as the vehicle information A sound input control device for a vehicle that controls sound input directivity.
In the vehicle sound input control device according to claim 1 or 2,
The control unit (4)
A vehicle sound input control device that controls sound input directivity in the directions (B1 to B7) of seats (14 to 16) detected by an occupant detection unit (18) that detects an occupant in the vehicle.
The vehicle sound input control device according to claim 3,
The control unit (4)
Sound input directing in the direction (B1) of the driver seat (14) on condition that the passenger detection unit (18) detects that the passenger is sitting only in the driver seat (14) as the vehicle information. Sound input control device for vehicle.
In the vehicle sound input control device according to any one of claims 1 to 3,
The control unit (4)
The driver's seat (18) is detected on the condition that the passenger is detected as the vehicle information when the passenger is seated in the driver's seat (14) and the passenger seat (15) by the passenger detection unit (18) that detects the passenger in the vehicle. 14) A vehicle sound input control device that controls sound input directivity in an intermediate direction (B2) between the passenger seat (15).
In the vehicle sound input control device according to any one of claims 1 to 5,
The collision direction detection unit (17) detects the vehicle collision direction as the vehicle information, and the collision severity detection unit (17, 19, 20) detects the vehicle collision severity.
The control unit (4) is opposite to the collision detection side by the collision direction detection unit (17), provided that the collision severity detection unit (17, 19, 20) detects a collision severity heavier than a predetermined value. The sound input control device for vehicles which controls sound input directivity toward the side.
In the vehicle sound input control device according to any one of claims 1 to 6,
The control unit (4)
A collision direction detection unit (17) that detects a vehicle collision direction as the vehicle information is input from a collision direction detection unit (17), and a collision severity detection unit (17, 19, 20) that detects a vehicle collision severity as the vehicle information. The information on the presence / absence of detection of the occupant is input from the occupant detection unit (18) that detects the occupant in the vehicle as the vehicle information, and the sound input directivity is controlled according to the information. Vehicle sound input control device.
The vehicle sound input control device according to claim 7,
The control unit (4)
The occupant detection unit (18) detects that an occupant is sitting in the driver's seat (14) and the passenger seat (15), and the collision severity detection unit (17, 19, 20) has a collision severity heavier than a predetermined value. The vehicle sound for controlling the sound input directivity toward the passenger seat (15) on the condition that the collision direction detection unit (17) detects the collision detection side as the driver seat (14) side. Input control device.
The sound input control device for a vehicle according to claim 7 or 8,
The control unit (4)
The occupant detection unit (18) detects that the occupant is sitting in the driver's seat (14) and the passenger seat (15), and the collision severity detection unit (17, 19, 20) reduces the collision severity lighter than a predetermined value. And the direction (B1) of the driver's seat (14) or the driver's seat (14) and the assistant on the condition that the collision detection side is detected as the driver's seat (14) by the collision direction detector (17). A sound input control device for a vehicle that controls sound input directivity toward an intermediate direction (B2) of the seat (15).
In the vehicle sound input control device according to any one of claims 7 to 9,
The control unit (4)
The occupant detection unit (18) detects that the occupant is sitting on the driver seat (14), the front seat by the passenger seat (15), and the rear seat (16), and the collision severity detection unit ( 17, 19, 20), and the front seats (14, 15) are detected on the condition that a collision severity heavier than a predetermined value is detected and the collision detection side by the collision direction detection unit (17) is detected as the vehicle front direction. And a vehicle sound input control device that controls sound input directivity toward an intermediate region of the rear seat (16) or toward the rear seat (16).
The sound input control device for a vehicle according to any one of claims 1 to 10,
The said control part (4) is a sound input control apparatus for vehicles which changes and changes the direction of the sound input directivity in a vehicle interior in an emergency.
The sound input control device for a vehicle according to any one of claims 1 to 11,
The control unit (4)
Vehicle sound input for controlling sound input directivity in a second direction different from the first direction, provided that the sound input level is lower than a predetermined value when the sound input directivity is directed in the first direction. Control device.
The sound input control device for a vehicle according to any one of claims 1 to 12,
It is usually configured by connecting to the audio unit (28) or hands-free unit that controls the sound input directivity of the sound input unit,
The control unit (4)
The control body of the sound input directivity is switched from the audio unit (4) in an emergency to control the sound input directivity, and the end of the talk or the data communication with the emergency call center (11) is completed. A vehicle sound input control device for returning the sound input directivity control subject to the audio unit (28) as a condition.
The sound input control device for a vehicle according to any one of claims 1 to 13,
A sound input control device for a vehicle configured by connecting an emergency call instruction unit (21) for manually reporting to an emergency call center (11) by a user in an emergency.
In the vehicle sound input control device according to any one of claims 1 to 14,
The control unit (4) includes, as the vehicle information, collision direction detection information, occupant detection information, collision severity detection information, speed and acceleration information at the time of collision, and information on whether or not an airbag (13) is mounted. A vehicle sound input control device that uses any one of the information on whether the airbag (13) is deployed or a combination thereof.
A vehicle sound input control method for controlling sound input directivity when making an emergency call to an emergency call center (11) in an emergency and inputting an utterance of a vehicle occupant through a sound input unit (26),
Get vehicle information,
The sound input directivity is controlled in at least two directions in the vehicle seat including the driver seat (14) and / or the seats (15, 16) other than the driver seat (14) and between the seats according to the acquired vehicle information. A sound input control method for a vehicle.
The sound input control method for a vehicle according to claim 16,
The vehicle information is any one of collision direction detection information, occupant detection information, collision severity detection information, collision speed and acceleration information, airbag installation information, and airbag deployment information. Or a sound input control method for vehicles that uses them in combination.