WO2014068835A1 - 運転サポート装置および運転サポートシステム - Google Patents
運転サポート装置および運転サポートシステム Download PDFInfo
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- WO2014068835A1 WO2014068835A1 PCT/JP2013/005603 JP2013005603W WO2014068835A1 WO 2014068835 A1 WO2014068835 A1 WO 2014068835A1 JP 2013005603 W JP2013005603 W JP 2013005603W WO 2014068835 A1 WO2014068835 A1 WO 2014068835A1
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- WIPO (PCT)
- Prior art keywords
- driver
- sound
- blinker
- visual display
- driving support
- Prior art date
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- 230000000007 visual effect Effects 0.000 claims description 86
- 238000012544 monitoring process Methods 0.000 claims description 24
- 230000004807 localization Effects 0.000 claims description 13
- 230000004913 activation Effects 0.000 abstract 3
- 210000003128 head Anatomy 0.000 description 18
- 230000005236 sound signal Effects 0.000 description 16
- 210000005069 ears Anatomy 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000004397 blinking Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 210000000624 ear auricle Anatomy 0.000 description 1
- 210000000613 ear canal Anatomy 0.000 description 1
- 210000000883 ear external Anatomy 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
- H04R5/023—Spatial or constructional arrangements of loudspeakers in a chair, pillow
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
- H04S1/005—For headphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2217/00—Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
- H04R2217/03—Parametric transducers where sound is generated or captured by the acoustic demodulation of amplitude modulated ultrasonic waves
Definitions
- the present disclosure relates to a driving support device and a driving support system that perform driving support of a driver (driver).
- Sound information useful for driving includes, for example, a blinker operating sound, a warning sound that informs the presence of pedestrians in the direction of travel of the vehicle, a warning sound that informs the presence of the vehicle to be changed when changing lanes, An alert sound that informs the possibility.
- Sound information useful for driving is useful for drivers, but is often unnecessary for other passengers and passengers.
- the blinker operating sound may be annoying, and there is a demand for making the blinker operating sound inaudible to passengers, for example, when driving on a late-night bus.
- Measures such as isolating the winker relay or mounting it at a remote location can eliminate the winker operating noise, but the driver will not have the sense of security that prevents the winker from forgetting to turn off or forgetting to turn off the winker.
- Sound information useful for driving blink operation sound, warning sound to notify the presence of pedestrians in the direction of travel of the vehicle, warning sound to notify the presence of the vehicle to be changed when changing lanes, possibility of lanes protruding from the vehicle In many cases, there is a distinction between the left and right directions.
- the sound image is localized (stereoscopic localization of the sound) by the left and right sides of the driver and the driver supports the driver to determine the correct direction by the direction of sound localization (not a well-known technique).
- visual information has priority over auditory information within the visual range such as the front. That is, visual information interferes with auditory information. As a result, even if the sound image is localized on the left and right sides of the driver, it is difficult to accurately determine the direction of the sound image because the visual information is given priority.
- the present disclosure has been made in view of the above, and an object of the present disclosure is to provide a driving support apparatus and driving support that provide “sound information useful for driving” that allows “judgment of right and left direction easily” to “driver only”. In providing the system.
- a driving support device using a stereophonic device and a visual display device includes a parametric speaker for right ear that emits ultrasonic waves toward the right ear of the driver who drives the vehicle and generates a reproduced sound on the right ear of the driver, and an ultrasonic wave toward the left ear of the driver.
- the sound image is stereo-directed to the driver using a parametric speaker for left ear that emits a reproduced sound to the driver's left ear.
- the visual display device uses a right visual display unit that performs a right visual display for the driver and a left visual display unit that performs a left visual display for the driver.
- the visual display device When the stereophonic sound device localizes a sound image on the right side of the driver, the visual display device performs a right visual display on the driver by the right visual display unit. When the stereophonic sound device localizes a sound image on the left side of the driver, the visual display device performs left visual display on the driver by the left visual display unit.
- a driving support system including a stereophonic device and a visual display device.
- the stereophonic device includes a parametric speaker for right ear that emits ultrasonic waves toward the right ear of the driver who drives the vehicle and generates a reproduced sound on the right ear of the driver, and an ultrasonic wave toward the left ear of the driver.
- the sound image is stereo-directed to the driver using a parametric speaker for left ear that emits a reproduced sound to the driver's left ear.
- the visual display device includes a right visual display unit that performs a right visual display for the driver, and a left visual display unit that performs a left visual display for the driver.
- the stereophonic device When the stereophonic device localizes a sound image on the right side of the driver, the right visual display unit of the visual display device performs a right visual display on the driver.
- the stereophonic sound device localizes a sound image on the left side of the driver, the left visual display unit of the visual display device performs left visual display on the driver.
- the stereophonic sound device when the stereophonic sound device localizes a sound image on the right side of the driver using a parametric speaker, the visual display device performs visual display on the right side to the driver using the right visual display unit. That is, when the visual display device performs visual display of the right side to the driver by the right visual display unit, the stereophonic sound device localizes the sound image to the right side of the driver by the parametric speaker.
- the visual display device displays the left side on the driver with the left visual display unit. That is, when the visual display device performs visual display of the left side to the driver by the left visual display unit, the stereophonic sound device localizes the sound image to the left side of the driver by the parametric speaker.
- the “driver only” can obtain “sound information useful for driving”.
- “right and left directionality by auditory information” and “right and left directionality by visual information” are linked by linking the direction indicated by the visual display device to the localization direction by the stereophonic device, and “left and right directionality Is easy to judge.
- the above-mentioned driving support device and driving support system can give “sound information useful for driving” to “only the driver” so that “right / left direction can be easily determined”.
- FIG. 1 is a configuration diagram of an operation support apparatus according to the first embodiment.
- FIG. 2 is a configuration diagram of recording equipment used for binaural recording according to the first embodiment.
- FIG. 3 is a configuration diagram of the driving support apparatus according to the second embodiment.
- FIG. 4 is a configuration diagram of an operation support apparatus according to the third embodiment.
- FIG. 5 is a configuration diagram of an operation support apparatus according to the fourth embodiment.
- Example 1 A first embodiment will be described with reference to FIGS.
- the driving support device constituting the driving support system is (I) a blinker device 1 that performs visual display in the left-right direction of the driver ⁇ ; (Ii) a stereophonic sound device 2 for stereolocating a sound image in the left-right direction of the driver ⁇ ; It is configured with.
- the blinker device 1 corresponds to an example of a visual display device.
- the blinker device 1 is a direction indicator that is always mounted on a vehicle.
- a winker lever operated in the left-right direction by the driver ⁇ a winker lever operated in the left-right direction by the driver ⁇ ;
- a right turn signal 1R provided on the right side of the handle center in the instrument panel and forming a design of "right arrow”;
- a left turn signal 1L provided on the left side of the handle center in the instrument panel and forming a design of "left arrow”;
- an electric circuit unit including a blinker relay that blinks the right blinker 1R when the blinker lever is operated in the right direction and blinks the left blinker 1L when the blinker lever is operated in the left direction; It is configured with.
- the right winker 1R is an example of a right visual display means and a right visual display unit.
- the left blinker 1L is an example of a left visual display means and a left visual display day.
- the winker relay is provided so that the relay operating sound (winker operating sound) cannot be heard directly by the driver ⁇ and other passengers. More specifically, a winker relay is mounted at a position away from the passenger compartment, or the winker relay is covered with a sound insulating material or the like, so that the relay operating sound is not directly heard by the occupant.
- the stereophonic sound device 2 is (I) a parametric speaker 2R for the right ear that emits ultrasonic waves toward the right ear of the driver ⁇ to generate a reproduced sound in the right ear of the driver ⁇ ; (Ii) a left-ear parametric speaker 2L that emits ultrasonic waves toward the left ear of the driver ⁇ to generate a reproduced sound in the left ear of the driver ⁇ ; It is configured with.
- the stereophonic sound device 2 of this embodiment is to let only the driver ⁇ hear the blinker operating sound, (I) When blinking the right blinker 1R, the blinker operation sound is localized in the right direction of the driver ⁇ , (Ii) When blinking the left blinker 1L, the blinker operating sound is localized in the left direction of the driver ⁇ .
- the sound source used for the stereophonic sound device 2 is made using binaural recording (not limited).
- binaural recording is a two-channel recording recorded using left and right microphones 4 arranged on the left and right pseudo-ears of a dummy head 3 simulating a human head.
- the binaural recording in this embodiment is a recording in which an ultrasonically modulated sound obtained by ultrasonically modulating an audible sound is applied from the recording ultrasonic speaker 5 to the dummy head 3. An example of the recording will be described with reference to FIG.
- the sound used for recording is recorded by the recording sound wave generator 10 that gives the sound (blinker operation sound) used for recording to the dummy head 3 and the left and right microphones 4 of the dummy head 3.
- a recording device 11 is used.
- a preferred example of the dummy head 3 used for binaural recording is that the left and right pseudo ears are provided with pseudo auricles (so-called earlobes) imitating a person's external ear and pseudo external ear canals (so-called ear holes), and left and right microphones. 4 is arranged in the back of the left and right pseudo-ear canals.
- the sound generation device 10 for recording gives the dummy head 3 “sound used for recording (blinker operation sound)” that is ultrasonically modulated using a parametric speaker.
- a recording ultrasonic speaker 5 that generates ultrasonic waves in a parametric speaker;
- a recording sound source unit 13 capable of outputting a winker operating sound signal;
- a recording signal output unit 14 for outputting a winker operating sound signal from the recording sound source unit 13;
- An ultrasonic recording modulation unit 15 that modulates the winker operating sound signal output from the recording sound source unit 13 to an ultrasonic frequency;
- a recording amplifier 16 for driving the ultrasonic speaker 5 for recording; It is configured with.
- the winker operating sound signal is an audio signal that forms a winker operating sound.
- the recording signal output unit 14 is an example of a recording signal output unit.
- the recording ultrasonic speaker 5 generates air vibrations having a frequency (20 kHz or higher) higher than the human audible band, and is not limited to, for example, a plurality of piezoelectric elements that generate ultrasonic waves. It is configured using.
- the recording sound source unit 13 is a personal computer equipped with a memory or program capable of generating a blinker operating sound signal.
- the recording signal output unit 14 is a controller such as a keyboard, for example, and can output a winker operating sound signal from the recording sound source unit 13.
- the recording sound source unit 13 may pick up the actual operating sound of the blinker relay with a microphone.
- the recording ultrasonic modulation unit 15 ultrasonically modulates the winker operating sound signal output from the recording sound source unit 13.
- the recording amplifier 16 drives the recording ultrasonic speaker 5 based on the ultrasonic signal modulated by the recording ultrasonic modulation unit 15 and is, for example, a class B amplifier or a class D amplifier.
- the ultrasonic wave that is emitted from the recording ultrasonic speaker 5 toward the dummy head 3 and that modulates the winker operating sound signal is distorted due to the viscosity of the air or the like as it propagates through the air. Be blunted. Then, the amplitude component contained in the ultrasonic wave in the air that is being propagated is self-demodulated, and the blinker operating sound is reproduced in the dummy head 3.
- the recording device 11 is a digital recording device (for example, a personal computer) that stores a 2-channel binaural signal captured by the left and right microphones 4 of the dummy head 3 in the memory 17.
- the binaural signal is stored in an independent address of the memory 17.
- the recording ultrasonic speaker 5 is installed so as to irradiate the ultrasonic wave toward the substantially central portion of the dummy head 3. It is desirable to record in a place with little reverberation such as a silent room.
- the recording ultrasonic speaker 5 In recording the winker operating sound localized on the right side of the driver ⁇ , the recording ultrasonic speaker 5 is arranged in the right direction of the dummy head 3 to perform recording, and the recorded material is recorded in the memory 17. Thereby, the binaural recording of the winker operating sound localized on the right side of the driver ⁇ is stored in the memory 17.
- the recording ultrasonic speaker 5 In recording of the winker operating sound localized on the left side of the driver ⁇ , the recording ultrasonic speaker 5 is arranged on the left side of the dummy head 3 to perform recording, and the recorded material is recorded in the memory 17. Thereby, the binaural recording of the blinker operating sound localized on the left side of the driver ⁇ is stored in the memory 17.
- the stereophonic sound device 2 is (I) a reproduction sound source unit 21 having a memory 20 in which two types of left and right winker operation sound signals (binaural recording) copied from the memory 17 are stored; (Ii) a parametric speaker 2R for the right ear and a parametric speaker 2L for the left ear that reproduce the binaural recording recorded in the sound source unit 21 for reproduction at the left and right ears of the driver ⁇ ; (Iii) an operation interlocking unit 22 for outputting a winker operating sound signal from the reproduction sound source unit 21 in conjunction with the operation of the winker device 1; It comprises.
- the operation interlocking unit 22 is an example of an operation interlocking unit.
- the operation interlocking unit 22 (A) When the winker lever is operated to the right side and the right winker 1R of the winker device 1 performs the blinking operation, the winker operation of the winker operating sound that is localized on the right side of the driver ⁇ from the reproduction sound source unit 21 Sound signals (binaural recording) are output to the parametric speaker 2R for the right ear and the parametric speaker 2L for the left ear, (B) When the blinker lever is operated to the left side and the left blinker 1L of the blinker device 1 performs the blinking operation, the two-way blinker operation of the blinker operation sound that is localized on the left side of the driver ⁇ from the reproduction sound source unit 21. Sound signals (binaural recording) are output to the parametric speaker 2R for the right ear and the parametric speaker 2L for the left ear.
- the parametric speaker 2R for the right ear and the parametric speaker 2L for the left ear use a two-channel parametric speaker to give a winker operating sound localized to the right or left to the driver ⁇ .
- Left and right reproduction ultrasonic speakers 23 that generate ultrasonic waves toward the left and right ears of the driver ⁇ ,
- a two-channel reproduction ultrasonic modulation unit 24 that modulates the two-channel winker operating sound signal output from the reproduction sound source unit 21 into an ultrasonic frequency;
- a two-channel reproduction amplifier 25 that drives the right and left reproduction ultrasonic speakers 23; It is configured with.
- the right and left playback ultrasonic speakers 23 generate air vibrations having a frequency (20 kHz or higher) higher than the human audible band, and may have the same basic configuration as the recording ultrasonic speaker 5.
- Different types of ultrasonic speakers for example, ribbon speakers may be used.
- the right and left reproduction ultrasonic speakers 23 emit ultrasonic waves toward the left and right ears of the driver ⁇ .
- a vehicle seat 26 (headrest, upper back of the back, etc.) Shows an example of installation.
- the installation location of the left and right reproduction ultrasonic speakers 23 is not limited to the vehicle seat 25, but other side such as the side of the meter panel (dashboard, etc.), pillars on both sides of the windshield, and the ceiling of the vehicle. You may install in the place.
- the 2-channel reproduction ultrasonic modulation unit 24 performs ultrasonic modulation on the two-channel blinker operation sound signals output from the reproduction sound source unit 21, respectively.
- the two-channel reproduction amplifier 25 independently drives the right and left reproduction ultrasonic speakers 23 based on the ultrasonic signal modulated by the two-channel reproduction ultrasonic modulation unit 24.
- the ultrasonic wave which modulated the winker operating sound signal irradiated toward the right and left ears of the driver ⁇ is distorted and blunted as the ultrasonic wave having a short wavelength is distorted by the viscosity of the air as it propagates through the air. Is done. Then, the amplitude component contained in the ultrasonic wave in the air that is being propagated is self-demodulated, and the winker operating sound is reproduced in the left and right ears of the driver ⁇ .
- the ultrasonic wave that has reached the head of the driver ⁇ before demodulation is self-demodulated at the head of the driver ⁇ (in the vicinity of the ear or the like), so that the winker operating sound is reproduced at the left and right ears of the driver ⁇ .
- the blinker operating sound does not feel bothersome for passengers other than the driver ⁇ . For example, while driving a midnight bus, it is possible to make the blinker operating sound inaudible to the passengers, and only the driver ⁇ can listen to the blinker operating sound, thereby preventing the blinker from being forgotten to be turned on or forgetting to turn it off. it can.
- the winker operating sound is localized in the direction corresponding to the direction indicated by the winker device 1, the direction of the winker can be unconsciously or consciously confirmed from the localization direction of the winker operating sound. For this reason, it is possible to prevent an error in operating the winker in the wrong direction, and to increase the sense of security for the winker operation.
- the driving support device can provide “only the driver ⁇ ” with “a blinker operating sound (an example of sound information useful for driving)” that is “easy to determine left and right directionality”.
- a blinker operating sound an example of sound information useful for driving
- the visual direction display cost can be reduced. That is, the present disclosure can be implemented while suppressing an increase in cost.
- Effect 3 of Example Using a parametric speaker technique, a winker operating sound (an example of sound information useful for driving) is reproduced at the left and right ears of the driver ⁇ .
- binaural recording recording technology that provides natural stereophonic sound during headphone playback
- the binaural recording used in this embodiment is recorded using reproduced sound from a parametric speaker.
- the ultrasonic wave used for the parametric speaker has strong directivity, the sound spread is suppressed, and the sound used for recording can be given to the dummy head 3 at the pinpoint. That is, highly accurate sound 3D information (localization information) can be given to the left and right microphones 4 of the dummy head 3.
- Example 1 an example in which the driver operating sound is heard only by the driver ⁇ during the winker operation is shown.
- the driver ⁇ is given a warning sound (an example of sound information useful for driving) informing the presence of a pedestrian in the traveling direction of the vehicle.
- the driving support device includes a caution monitoring unit 31 (an example of a caution monitoring unit) that determines in which direction of the vehicle a caution has occurred.
- the driving support device (I) When the caution monitoring unit 31 detects a caution item in the right direction, the blinker device 1 causes the right blinker 1R to blink, and a caution sound is localized on the right side of the driver ⁇ . (Ii) When the caution monitoring unit 31 detects a caution item in the left direction, the blinker device 1 causes the left blinker 1L to blink, and the caution sound is localized on the left side of the driver ⁇ .
- the attention monitoring unit 31 of the second embodiment detects from which direction of the vehicle the pedestrian approaches.
- the stereophonic sound device 2 When the caution monitoring unit 31 detects that a pedestrian is approaching from the right side of the vehicle, the stereophonic sound device 2 localizes a caution sound (for example, a voice coming from the right) on the right side of the driver ⁇ . At the same time, the blinker device 1 causes the right blinker 1R to blink. (Ii) When the caution monitoring unit 31 detects that a pedestrian is approaching from the left side of the vehicle, the stereophonic sound device 2 localizes a caution sound (for example, a voice such as a person coming from the left) to the left side of the driver ⁇ . At the same time, the blinker device 1 causes the left blinker 1L to blink. (Effect of Example 2) Thereby, only the driver ⁇ can be given a warning sound (an example of sound information useful for driving) that allows easy determination of the left and right directionality.
- a caution sound for example, a voice coming from the right
- the blinker device 1 causes the right blinker 1R to blink.
- the driving support device includes a caution monitoring unit 31 that detects the presence or absence of a vehicle in a lane change destination (for example, a right lane or a left lane) when changing a lane (for example, during a blinker operation).
- a caution monitoring unit 31 that detects the presence or absence of a vehicle in a lane change destination (for example, a right lane or a left lane) when changing a lane (for example, during a blinker operation).
- the stereophonic sound device 2 When it is detected that another vehicle is present on the right side of the vehicle when the lane is changed, the stereophonic sound device 2 localizes a warning sound on the right side of the driver ⁇ (for example, a sound such as a vehicle on the right side).
- the blinker operation of the right blinker 1R is executed by the blinker device 1,
- the stereophonic sound device 2 When it is detected that there is another vehicle on the left side of the vehicle when the lane is changed, the stereophonic sound device 2 localizes a warning sound on the left side of the driver ⁇ (for example, a sound such as a vehicle on the left side).
- the blinker operation of the left blinker 1L is executed by the blinker device 1.
- Example 4 Embodiment 4 will be described with reference to FIG.
- the driving support device of the fourth embodiment includes a lane monitoring unit 32 (lane monitoring means) that detects that the possibility that the vehicle protrudes from the traveling lane is increased.
- the stereophonic sound device 2 When the lane monitoring unit 32 detects the possibility of the vehicle protruding to the right, the stereophonic sound device 2 localizes a warning sound (for example, a sound or sound effect such as a right protruding warning) on the right side of the driver ⁇ . And blinking operation of the right winker 1R is performed by the winker device 1, (Ii) When the lane monitoring unit 32 detects the possibility of the vehicle protruding to the left, the stereophonic sound device 2 generates a warning sound (for example, a sound or sound effect such as the left protruding attention) on the left side of the driver ⁇ . At the same time, the blinker device 1 causes the left blinker 1L to blink.
- a warning sound for example, a sound or sound effect such as a right protruding warning
- the winker device 1 is diverted as a visual display device
- other visual display units such as a window display may be used.
- a visual display device such as a winker device
- a visual display device may be provided so as not to operate outside the visual range (for example, right rear and left rear).
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Abstract
Description
(実施例1)
図1、図2を参照して実施例1を説明する。
(i)ドライバαの左右方向に視覚表示を行うウィンカ装置1と、
(ii)ドライバαの左右方向に音像を立体定位させる立体音響装置2と、
を備えて構成される。ウィンカ装置1は、視覚表示装置の一例に相当する。
(i)ドライバαにより左右方向へ操作されるウィンカレバーと、
(ii)計器盤におけるハンドルセンターより右側に設けられて「右矢印」の意匠を成す右ウィンカ1Rと、
(iii)計器盤におけるハンドルセンターより左側に設けられて「左矢印」の意匠を成す左ウィンカ1Lと、
(iv)ウィンカレバーが右方向へ操作された際に右ウィンカ1Rを点滅させ、ウィンカレバーが左方向へ操作された際に左ウィンカ1Lを点滅させるウィンカリレーを含む電気回路部と、
を備えて構成される。右ウィンカ1Rは、右側視覚表示手段および右側視覚表示部の一例である。左ウィンカ1Lは、左側視覚表示手段および、左側視覚表示日の一例である。
(i)ドライバαの右耳へ向けて超音波を照射してドライバαの右耳に再生音を発生させる右耳用パラメトリックスピーカ2Rと、
(ii)ドライバαの左耳へ向けて超音波を照射してドライバαの左耳に再生音を発生させる左耳用パラメトリックスピーカ2Lと、
を備えて構成される。
(i)右ウィンカ1Rを点滅させる際に、ウィンカ作動音をドライバαの右方向に定位させ、
(ii)左ウィンカ1Lを点滅させる際に、ウィンカ作動音をドライバαの左方向に定位させるものである。
(バイノーラル録音の説明)
この実施例におけるバイノーラル録音は、可聴音を超音波変調した超音波変調音を録音用超音波スピーカ5からダミーヘッド3に与えて録音したものである。その録音例を図2を参照して説明する。
(録音用音波発生装置10の説明)
録音用音波発生装置10は、パラメトリックスピーカを用いて超音波変調された「録音に用いる音(ウィンカ作動音)」をダミーヘッド3に与えるものであり、
・パラメトリックスピーカにおいて超音波を発生する録音用超音波スピーカ5と、
・ウィンカ作動音信号を出力可能な録音用音源部13と、
・録音用音源部13からウィンカ作動音信号を出力させる録音信号出力部14と、
・録音用音源部13から出力されたウィンカ作動音信号を超音波周波数に変調する録音用超音波変調部15と、
・録音用超音波スピーカ5を駆動する録音用アンプ16と、
を備えて構成される。ウィンカ作動音信号とは、ウィンカ作動音を成すオーディオ信号である。録音信号出力部14は、録音信号出力手段の一例である。
(録音装置11の説明)
録音装置11は、ダミーヘッド3の左右のマイク4で捕らえた2チャンネルのバイノーラル信号をメモリ17に保存するデジタル式の録音機材(例えばパソコン)であり、左右のマイク4でそれぞれ捕らえた2チャンネルのバイノーラル信号をメモリ17の独立したアドレスに記憶するものである。
(録音方法の説明)
録音用超音波スピーカ5は、ダミーヘッド3の略中心部に向けて超音波を照射するように設置される。なお、録音は無音室など残響の少ない場所にて録音されることが望ましいものである。
(a)ドライバαの右側で定位するウィンカ作動音の録音では、ダミーヘッド3の右方向に録音用超音波スピーカ5を配置して録音を行ない、録音物をメモリ17に記録する。これにより、メモリ17には、ドライバαの右側で定位するウィンカ作動音のバイノーラル録音が保存される。
(b)ドライバαの左側で定位するウィンカ作動音の録音では、ダミーヘッド3の左方向に録音用超音波スピーカ5を配置して録音を行ない、録音物をメモリ17に記録する。これにより、メモリ17には、ドライバαの左側で定位するウィンカ作動音のバイノーラル録音が保存される。
(立体音響装置2の具体的な説明)
立体音響装置2は、
(i)上記メモリ17からコピーされた左右2種類のウィンカ作動音信号(バイノーラル録音)が記憶されたメモリ20を搭載する再生用音源部21と、
(ii)この再生用音源部21に記録されたバイノーラル録音をドライバαの左右の耳元で再生する右耳用パラメトリックスピーカ2Rおよび左耳用パラメトリックスピーカ2Lと、
(iii)ウィンカ装置1の作動に連動(リンク)して再生用音源部21からウィンカ作動音信号を出力させる動作連動部22と、
を具備する。動作連動部22は、動作連動手段の一例である。
(a)ウィンカレバーが右側へ操作されて、ウィンカ装置1の右ウィンカ1Rが点滅作動を行う際に、再生用音源部21から、ドライバαの右側で定位するウィンカ作動音の2チャンネルのウィンカ作動音信号(バイノーラル録音)を、右耳用パラメトリックスピーカ2Rと左耳用パラメトリックスピーカ2Lに出力させ、
(b)ウィンカレバーが左側へ操作されて、ウィンカ装置1の左ウィンカ1Lが点滅作動を行う際に、再生用音源部21から、ドライバαの左側で定位するウィンカ作動音の2チャンネルのウィンカ作動音信号(バイノーラル録音)を、右耳用パラメトリックスピーカ2Rと左耳用パラメトリックスピーカ2Lに出力させるものである。
・ドライバαの左右の耳にそれぞれ向けて超音波を発生する左右の再生用超音波スピーカ23と、
・再生用音源部21から出力された2チャンネルのウィンカ作動音信号を超音波周波数に変調する2チャンネルの再生用超音波変調部24と、
・左右の再生用超音波スピーカ23を駆動する2チャンネルの再生用アンプ25と、
を備えて構成される。
(a)乗員がウィンカレバーを右側へ操作すると、ウィンカ装置1が右ウィンカ1Rの点滅作動を行うとともに、立体音響装置2がドライバαの右側にウィンカ作動音を定位させる。
(b)乗員がウィンカレバーを左側へ操作すると、ウィンカ装置1が左ウィンカ1Lの点滅作動を行うとともに、立体音響装置2がドライバαの左側にウィンカ作動音を定位させる。
(実施例の効果1)
パラメトリックスピーカの技術を用いてドライバαの耳元にウィンカ作動音を与えるため、ドライバαのみが、ウィンカ作動音(運転に有用な音情報の一例)を得ることができる。即ち、ドライバα以外の乗員にとって、ウィンカ作動音が煩わしく感じることがない。例えば深夜のバスの走行中においてウィンカ作動音を乗客に聞こえなくすることができるとともに、ドライバαのみウィンカ作動音を聴くことができ、ウィンカの出し忘れや、ウィンカの消し忘れを未然に防ぐことができる。
(実施例の効果2)
視覚表示装置として車両に必ず搭載されるウィンカ装置1を流用するため、視覚による方向表示コストを抑えることができる。即ち、コスト上昇を抑えて本開示を実施することができる。
(実施例の効果3)
パラメトリックスピーカの技術を用いてドライバαの左右の耳元で、ウィンカ作動音(運転に有用な音情報の一例)を再生させる。パラメトリックスピーカに用いる超音波は指向性が強いため、音の広がりが抑えられてピンポイントに左右の耳に対して、録音された音を正確に与える。その結果、ドライバαに対して音の3D情報を正確に再現させることができ、ドライバαの右側または左側において、ウィンカ作動音を明確に定位させることができる。
(実施例の効果4)
ドライバαの左右の耳元で直接的に再生音が再生されるため、ドライバαが感じる再生音は、ヘッドフォン装着時に類似した再生音になる。そこで、立体音響装置2に用いる音源としてバイノーラル録音(ヘッドフォン再生において自然な立体音響が得られる録音技術)を用いることで、再生音の違和感を抑えることができ、且つ音像の定位性を高めることができる。
(実施例の効果5)
この実施例で用いるバイノーラル録音は、パラメトリックスピーカによる再生音を用いて録音される。
(実施例2)
図3を参照して実施例2を説明する。なお、以下の各実施例において、上記実施例と同一符号は同一機能物を示すものである。
(i)注意監視部31が右方向に注意事項を検出した場合に、ウィンカ装置1によって右ウィンカ1Rを点滅作動させるとともに、ドライバαの右側に注意喚起音を定位させ、
(ii)注意監視部31が左方向に注意事項を検出した場合に、ウィンカ装置1によって左ウィンカ1Lを点滅作動させるとともに、ドライバαの左側に注意喚起音を定位させる。
(i)注意監視部31が車両の右側から歩行者が近づくことを検出すると、立体音響装置2によってドライバαの右側に注意喚起音(例えば、右から人が来ます等の音声)を定位させるとともに、ウィンカ装置1によって右ウィンカ1Rの点滅作動を実行させ、
(ii)注意監視部31が車両の左側から歩行者が近づくことを検出すると、立体音響装置2によってドライバαの左側に注意喚起音(例えば、左から人が来ます等の音声)を定位させるとともに、ウィンカ装置1によって左ウィンカ1Lの点滅作動を実行させる。
(実施例2の効果)
これにより、ドライバαのみに、左右の方向性の判断が容易な注意喚起音(運転に有用な音情報の一例)を与えることができる。
(実施例3)
図4を参照して実施例3を説明する。
(i)車線変更時に車両の右側に他の車両が存在することを検出すると、立体音響装置2によってドライバαの右側に注意喚起音(例えば、右側に車がいます等の音声)を定位させるとともに、ウィンカ装置1によって右ウィンカ1Rの点滅作動を実行させ、
(ii)車線変更時に車両の左側に他の車両が存在することを検出すると、立体音響装置2によってドライバαの左側に注意喚起音(例えば、左側に車がいます等の音声)を定位させるとともに、ウィンカ装置1によって左ウィンカ1Lの点滅作動を実行させる。
(実施例4)
図5を参照して実施例4を説明する。
(i)レーン監視部32が右方向への車両のはみ出しの可能性を検出すると、立体音響装置2によってドライバαの右側に注意喚起音(例えば、右側はみ出し注意等の音声または効果音)を定位させるとともに、ウィンカ装置1によって右ウィンカ1Rの点滅作動を実行させ、
(ii)レーン監視部32が左方向への車両のはみ出しの可能性を検出すると、立体音響装置2によってドライバαの左側に注意喚起音(例えば、左側はみ出し注意等の音声または効果音)を定位させるとともに、ウィンカ装置1によって左ウィンカ1Lの点滅作動を実行させる。
Claims (14)
- 車両の運転を行うドライバ(α)の右耳へ向けて超音波を照射してドライバ(α)の右耳に再生音を発生させる右耳用パラメトリックスピーカ(2R)、および前記ドライバ(α)の左耳へ向けて超音波を照射してドライバ(α)の左耳に再生音を発生させる左耳用パラメトリックスピーカ(2L)を用い、前記ドライバ(α)に対して音像を立体定位させる立体音響装置(2)と、
前記ドライバ(α)に対して右側の視覚表示を行う右側視覚表示部(1R)、および前記ドライバ(α)に対して左側の視覚表示を行う左側視覚表示部(1L)を用いた視覚表示装置(1)とを用い、
前記立体音響装置(2)が前記ドライバ(α)の右側に音像を定位させる際に、前記視覚表示装置(1)が前記右側視覚表示部(1R)によりドライバ(α)に右側の視覚表示を行い、
前記立体音響装置(2)が前記ドライバ(α)の左側に音像を定位させる際に、前記視覚表示装置(1)が前記左側視覚表示部(1L)によりドライバ(α)に左側の視覚表示を行う運転サポート装置。 - 請求項1に記載の運転サポート装置において、
前記立体音響装置(2)に用いる音源は、バイノーラル録音を用いて作られている運転サポート装置。 - 請求項2に記載の運転サポート装置において、
前記バイノーラル録音は、パラメトリックスピーカによる再生音を用いて録音されている運転サポート装置。 - 請求項1~請求項3のいずれか1つに記載の運転サポート装置において、
前記視覚表示装置(1)は、ウィンカ装置(1)であり、
前記右側視覚表示部(1R)は、前記ウィンカ装置(1)における右ウィンカ(1R)であり、
前記左側視覚表示部(1L)は、前記ウィンカ装置(1)における左ウィンカ(1L)である運転サポート装置。 - 請求項4に記載の運転サポート装置において、
前記立体音響装置(2)は、
前記ウィンカ装置(1)が前記右ウィンカ(1R)を点滅作動させる際に、前記ドライバ(α)の右側にウィンカ作動音を定位させ、
前記ウィンカ装置(1)が前記左ウィンカ(1L)を点滅作動させる際に、前記ドライバ(α)の左側にウィンカ作動音を定位させる運転サポート装置。 - 請求項4に記載の運転サポート装置において、
該運転サポート装置は、車両のどの方向に注意事項が発生したかを検出する注意監視部(31)を備え、
前記注意監視部(31)が右方向に注意事項を検出した場合に、前記ウィンカ装置(1)によって前記右ウィンカ(1R)を点滅作動させるとともに、前記ドライバ(α)の右側に注意喚起音を定位させ、
前記注意監視部(31)が左方向に注意事項を検出した場合に、前記ウィンカ装置(1)によって前記左ウィンカ(1L)を点滅作動させるとともに、前記ドライバ(α)の左側に注意喚起音を定位させる運転サポート装置。 - 請求項4に記載の運転サポート装置において、
該運転サポート装置は、車両が走行レーンをはみ出す可能性が高くなったことを検出するレーン監視部(32)を備え、
前記レーン監視部(32)が右方向への車両のはみ出しの可能性を検出した場合に、前記ウィンカ装置(1)によって前記右ウィンカ(1R)を点滅作動させるとともに、前記ドライバ(α)の右側に注意喚起音を定位させ、
前記レーン監視部(32)が左方向への車両のはみ出しの可能性を検出した場合に、前記ウィンカ装置(1)によって前記左ウィンカ(1L)を点滅作動させるとともに、前記ドライバ(α)の左側に注意喚起音を定位させる運転サポート装置。 - 車両の運転を行うドライバ(α)の右耳へ向けて超音波を照射してドライバ(α)の右耳に再生音を発生させる右耳用パラメトリックスピーカ(2R)、および前記ドライバ(α)の左耳へ向けて超音波を照射してドライバ(α)の左耳に再生音を発生させる左耳用パラメトリックスピーカ(2L)を用い、前記ドライバ(α)に対して音像を立体定位させる立体音響装置(2)と、
前記ドライバ(α)に対して右側の視覚表示を行う右側視覚表示部(1R)、および前記ドライバ(α)に対して左側の視覚表示を行う左側視覚表示部(1L)を有する視覚表示装置(1)と、を備え、
前記立体音響装置(2)が前記ドライバ(α)の右側に音像を定位させる際に、前記視覚表示装置(1)の前記右側視覚表示部(1R)によりドライバ(α)に右側の視覚表示を行い、
前記立体音響装置(2)が前記ドライバ(α)の左側に音像を定位させる際に、前記視覚表示装置(1)の前記左側視覚表示部(1L)によりドライバ(α)に左側の視覚表示を行う運転サポートシステム。 - 請求項8に記載の運転サポートシステムにおいて、
前記立体音響装置(2)に用いる音源は、バイノーラル録音を用いて作られている運転サポートシステム。 - 請求項9に記載の運転サポートシステムにおいて、
前記バイノーラル録音は、パラメトリックスピーカによる再生音を用いて録音されている運転サポートシステム。 - 請求項8ないし請求項10のいずれか1つに記載の運転サポートシステムにおいて、
前記視覚表示装置(1)は、ウィンカ装置(1)であり、
前記右側視覚表示部(1R)は、前記ウィンカ装置(1)における右ウィンカ(1R)であり、
前記左側視覚表示部(1L)は、前記ウィンカ装置(1)における左ウィンカ(1L)である運転サポートシステム。 - 請求項11に記載の運転サポートシステムにおいて、
前記立体音響装置(2)は、
前記ウィンカ装置(1)が前記右ウィンカ(1R)を点滅作動させる際に、前記ドライバ(α)の右側にウィンカ作動音を定位させ、
前記ウィンカ装置(1)が前記左ウィンカ(1L)を点滅作動させる際に、前記ドライバ(α)の左側にウィンカ作動音を定位させる運転サポートシステム。 - 請求項11に記載の運転サポートシステムにおいて、
該運転サポートシステムは、車両のどの方向に注意事項が発生したかを検出する注意監視部(31)を備え、
前記注意監視部(31)が右方向に注意事項を検出した場合に、前記ウィンカ装置(1)によって前記右ウィンカ(1R)を点滅作動させるとともに、前記ドライバ(α)の右側に注意喚起音を定位させ、
前記注意監視部(31)が左方向に注意事項を検出した場合に、前記ウィンカ装置(1)によって前記左ウィンカ(1L)を点滅作動させるとともに、前記ドライバ(α)の左側に注意喚起音を定位させる運転サポートシステム。 - 請求項11に記載の運転サポートシステムにおいて、
該運転サポートシステムは、車両が走行レーンをはみ出す可能性が高くなったことを検出するレーン監視部(32)を備え、
前記レーン監視部(32)が右方向への車両のはみ出しの可能性を検出した場合に、前記ウィンカ装置(1)によって前記右ウィンカ(1R)を点滅作動させるとともに、前記ドライバ(α)の右側に注意喚起音を定位させ、
前記レーン監視部(32)が左方向への車両のはみ出しの可能性を検出した場合に、前記ウィンカ装置(1)によって前記左ウィンカ(1L)を点滅作動させるとともに、前記ドライバ(α)の左側に注意喚起音を定位させる運転サポートシステム。
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JP7332741B1 (ja) | 2022-03-29 | 2023-08-23 | 本田技研工業株式会社 | 安全支援装置 |
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JP6470041B2 (ja) * | 2014-12-26 | 2019-02-13 | 株式会社東芝 | ナビゲーション装置、ナビゲーション方法及びプログラム |
JP6569945B2 (ja) * | 2016-02-10 | 2019-09-04 | 日本電信電話株式会社 | バイノーラル音生成装置、マイクロホンアレイ、バイノーラル音生成方法、プログラム |
JP6579153B2 (ja) * | 2017-05-11 | 2019-09-25 | マツダ株式会社 | 車両用サウンドシステム |
DE102018203661A1 (de) | 2018-03-12 | 2019-09-12 | Ford Global Technologies, Llc | Verfahren und Vorrichtung zum Testen von direktionalem Hören in einem Fahrzeug |
US11457328B2 (en) | 2018-03-14 | 2022-09-27 | Sony Corporation | Electronic device, method and computer program |
JP7383942B2 (ja) * | 2019-09-06 | 2023-11-21 | ヤマハ株式会社 | 車載音響システムおよび車両 |
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- 2013-09-23 WO PCT/JP2013/005603 patent/WO2014068835A1/ja active Application Filing
- 2013-09-23 CN CN201380057174.5A patent/CN104769967B/zh not_active Expired - Fee Related
- 2013-09-23 DE DE112013005207.5T patent/DE112013005207T5/de not_active Withdrawn
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JP2023147044A (ja) * | 2022-03-29 | 2023-10-12 | 本田技研工業株式会社 | 安全支援装置 |
Also Published As
Publication number | Publication date |
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DE112013005207T5 (de) | 2015-09-10 |
CN104769967A (zh) | 2015-07-08 |
US20150258930A1 (en) | 2015-09-17 |
CN104769967B (zh) | 2016-11-02 |
JP5678942B2 (ja) | 2015-03-04 |
JP2014093578A (ja) | 2014-05-19 |
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