WO2018151047A1 - Dispositif de guidage de ligne de visée - Google Patents

Dispositif de guidage de ligne de visée Download PDF

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Publication number
WO2018151047A1
WO2018151047A1 PCT/JP2018/004648 JP2018004648W WO2018151047A1 WO 2018151047 A1 WO2018151047 A1 WO 2018151047A1 JP 2018004648 W JP2018004648 W JP 2018004648W WO 2018151047 A1 WO2018151047 A1 WO 2018151047A1
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WO
WIPO (PCT)
Prior art keywords
sound
line
guidance device
sight
sight guidance
Prior art date
Application number
PCT/JP2018/004648
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English (en)
Japanese (ja)
Inventor
利明 中山
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2018151047A1 publication Critical patent/WO2018151047A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback

Definitions

  • This disclosure relates to a technique for guiding a subject's line of sight to an object to be viewed.
  • Patent Document 1 proposes a technique for guiding the eyes of a target person such as a passerby to an object to be viewed such as an advertisement medium using sound emitted from a dynamic speaker.
  • Patent Document 1 uses a dynamic speaker for line-of-sight guidance, so that the sound pressure gradually changes as the subject moves. For this reason, the subject that the sound tends to be buried in the surrounding noise for the gaze guidance, and the effect of the gaze guidance becomes insufficient.
  • the line-of-sight guidance device guides a subject's line of sight to an object to be viewed that represents an object that the subject wants to visually recognize, assuming that the person is located in a preset target area. Composed.
  • the line-of-sight guidance device includes a signal generation unit and an ultrasonic output unit.
  • the signal generation unit is configured to generate a sound wave signal for outputting a guided audible sound representing an audible sound for visual line guidance generated by modulating an ultrasonic wave.
  • the ultrasonic output unit is arranged between the object to be viewed and the target area, and is configured to output a guided audible sound to the target area in response to the input of the sound wave signal. Is done.
  • a target audible sound is generated with an ultrasonic wave having sharper directivity than a normal audible sound and is output to the target area.
  • suddenly an audible sound with a large sound pressure can be heard.
  • the subject is more likely to draw attention to the guided audible sound. Therefore, it is possible to make the guided audible sound less likely to be buried in the surrounding noise, and to guide the subject's line of sight to the object to be viewed.
  • FIG. 2 is a block diagram illustrating a configuration of a line-of-sight guidance control device 1.
  • FIG. It is a front view which shows the example of arrangement
  • a line-of-sight guidance control apparatus 1 shown in FIG. 1 is an apparatus that has a function of guiding the line of sight of a person such as a pedestrian to the display unit 20 while configuring digital signage.
  • the line-of-sight guidance control apparatus 1 is configured to provide arbitrary information such as advertisements and alerts by a combination of an information providing sound representing a sound for providing information and an image.
  • a configuration for providing an advertisement will be described.
  • the line-of-sight guidance control device 1 includes a general control unit 10, a display unit 20, and an ultrasonic speaker 40.
  • the line-of-sight guidance control apparatus 1 may include a dynamic speaker 30, a dynamic amplifier 31, and an ultrasonic amplifier 41.
  • the display unit 20 is a known display that displays an image generated by the advertisement control unit 16 described later.
  • the display unit 20 displays an image related to the advertisement.
  • the dynamic speaker 30 is a well-known dynamic speaker configured to emit an audible sound wave by vibration of a moving coil.
  • the dynamic speaker 30 is disposed in the vicinity of the display unit 20 and outputs sound related to the advertisement to the periphery of the display unit 20.
  • the vicinity of the display part 20 represents the inside of the range which can visually recognize the display part 20 favorably.
  • the dynamic amplifier 31 amplifies and outputs a sound wave signal generated by the advertisement control unit 16.
  • the amplified sound wave signal is sent to the dynamic speaker 30.
  • the ultrasonic speaker 40 is an ultrasonic generator that generates air vibrations of 20 kHz or higher, which is a frequency higher than the human audible band, and is configured as a piezoelectric speaker suitable for ultrasonic reproduction, for example.
  • a piezoelectric speaker a ceramic speaker, a piezoelectric speaker, or the like can be adopted.
  • the ultrasonic speaker 40 is configured as a parametric speaker that outputs an audible sound by amplitude-modulating an ultrasonic wave.
  • the ultrasonic speaker 40 may be configured as an array speaker in which a plurality of speakers are regularly arranged on a certain plane.
  • the ultrasonic amplifier 41 amplifies and outputs the waveform of the sound wave signal generated by the guidance sound controller 17 described later.
  • the amplified sound wave signal is sent to the ultrasonic speaker 40.
  • the line-of-sight guidance control device 1 sets one or a plurality of persons located in a preset target area 51 as target persons, and displays them on the display unit 20 that these target persons want to visually recognize. It is configured to guide the subject's line of sight.
  • the ultrasonic speaker 40 is disposed toward the target region 51 in the vicinity of the display unit 20 and receives a sound wave signal for outputting a guided audible sound.
  • the induced audible sound represents an audible sound for guiding the line of sight generated by modulating an ultrasonic wave.
  • the ultrasonic speaker 40 is configured to output a guided audible sound to the target region 51 in accordance with the sound wave signal.
  • the target area 51 is set to be at least partially different from the providing area 35. This is to prevent the sound output from the ultrasonic speaker 40 and the dynamic speaker 30 from being mixed.
  • the general control unit 10 is mainly configured by a known microcomputer having a CPU 11 and a semiconductor memory (hereinafter, memory 12) such as a RAM, a ROM, and a flash memory.
  • memory 12 a semiconductor memory
  • Various functions of the integrated control unit 10 are realized by the CPU 11 executing a program stored in a non-transitional tangible recording medium.
  • the memory 12 is This corresponds to a non-transitional tangible recording medium that stores a program.
  • the non-transitional tangible recording medium means that the electromagnetic waves in the recording medium are excluded.
  • the number of microcomputers constituting the overall control unit 10 may be one or plural.
  • the general control unit 10 includes an advertisement control unit 16 and a guidance sound control unit 17 as a functional configuration realized by the CPU 11 executing a program.
  • the method of realizing these elements constituting the integrated control unit 10 is not limited to software, and some or all of the elements may be realized using one or a plurality of hardware.
  • the electronic circuit may be realized by a digital circuit including a large number of logic circuits, an analog circuit, or a combination thereof.
  • the function of the advertisement control unit 16 generates an advertisement image to be displayed on the display unit 20 and an advertisement sound synchronized with the advertisement image, sends the advertisement image to the display unit 20, and sends the advertisement sound to the dynamic amplifier 31.
  • the advertisement image and the advertisement sound may be generated by reproducing moving image data prepared in advance, or may be acquired via a communication network such as the Internet network.
  • the function of the guide sound control unit 17 generates a sound wave signal for outputting a guide audible sound.
  • the amplitude of the sound wave signal is set so that the induced audible sound output by the sound wave signal has a sound pressure exceeding the sound pressure of the noise in the target region 51.
  • the sound pressure of the noise may be prepared in advance, or may be acquired in real time using a microphone, and the sound pressure of the induced audible sound output so as to exceed the sound pressure of the noise may be changed.
  • the sound wave signal for generating the induced audible sound is set to have a frequency higher than the main frequency component of the noise in the target region 51.
  • the main frequency component indicates, for example, a frequency at which the sound pressure level is maximized when the sound pressure level for each frequency is displayed as a graph.
  • noise caused by vehicle running noise is about 100 Hz to 3 kHz
  • noise caused by human voice is about 100 Hz to 1.2 kHz. Therefore, the induced audible sound is set to a frequency of about 4-8 kHz, which is a frequency that is difficult to be included in noise, for example.
  • the guided audible sound may be a simple electronic sound or a sound.
  • the guided audible sound is a voice, it is preferable to output a word calling the target person or a word calling the target person.
  • the line-of-sight guidance control device 1 of the present disclosure includes a guidance sound control unit 17 and an ultrasonic speaker 40.
  • the guide sound control unit 17 is configured to generate a sound wave signal for outputting a guide audible sound representing an audible sound for gaze guidance generated by modulating an ultrasonic wave.
  • the ultrasonic speaker 40 is disposed between the display unit 20 and the target region 51 toward the target region 51, receives a sound wave signal, and outputs a guided audible sound to the target region 51 according to the sound wave signal. Configured as follows.
  • a guided audible sound is generated with an ultrasonic wave having a sharper directivity than a normal audible sound and is output to the target region 51.
  • a person who has moved to can suddenly hear an audible sound with a large sound pressure.
  • the subject is more likely to draw attention to the guided audible sound. Therefore, it is possible to make the guided audible sound less likely to be buried in the surrounding noise, and to guide the subject's line of sight to the display unit 20.
  • the guidance sound control unit 17 is configured to generate a sound wave signal for outputting a guided audible sound having a sound pressure exceeding the sound pressure of the noise in the target region 51. .
  • the guided audible sound is output with a louder sound than the noise, and therefore the guided audible sound can be hardly buried in the surrounding noise.
  • the guidance sound control unit 17 is configured to generate a sound wave signal for outputting a guided audible sound having a frequency higher than the main frequency component of noise in the target region 51. Is done.
  • the above-described line-of-sight guidance control device 1 is configured to provide information to the subject by a combination of the information providing voice representing the voice for providing information and the display unit 20. And it further includes a dynamic speaker 30 that is arranged in the vicinity of the display unit 20 and configured to output information providing sound to a providing area 35 that represents an area that is at least partially different from the target area 51.
  • the dynamic speaker 30 that outputs information providing sound and the ultrasonic speaker 40 that outputs guided audible sound are separately provided, the line of sight is guided to the display unit 20.
  • the display unit 20 can be visually recognized without unnecessarily increasing the sound pressure by the dynamic speaker 30, and the target person can be guided within a range where the information providing sound can be heard.
  • the ultrasonic speaker 40 is arranged in the vicinity of the display unit 20, but the present invention is not limited to this.
  • the ultrasonic speaker 40 is disposed toward the target region 51 in the intermediate region 52 that represents the region connecting the display unit 20 and the target region 51, the ultrasonic speaker 40 is located near the display unit 20. There is no need to be placed. That is, it is only necessary that the direction in which the audible sound for guidance is heard and the direction of the display unit 20 match when viewed from the target region 51.
  • the present disclosure can also be realized in various forms such as a system including the line-of-sight guidance control apparatus 1 as a constituent element and a line-of-sight guidance method.
  • the line-of-sight guidance device in the embodiment corresponds to the line-of-sight guidance control device 1 referred to in the present disclosure
  • the guidance sound control unit 17 in the embodiment corresponds to a signal generation unit referred to in the disclosure.
  • the display unit 20 in the above embodiment corresponds to an object to be viewed in the present disclosure
  • the dynamic speaker 30 in the above embodiment corresponds to an audio output unit in the present disclosure.
  • the ultrasonic speaker 40 in the above embodiment corresponds to an ultrasonic output unit in the present disclosure.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Un dispositif de guidage de ligne de visée (1) de la présente invention est configuré pour guider la ligne de visée d'une personne sujet positionnée dans une zone (51) d'intérêt qui est définie à l'avance par rapport à un article (20) à reconnaître visuellement représentant un objet que la personne sujet souhaite reconnaître visuellement. Le dispositif de guidage de ligne de visée est pourvu d'une unité de génération de signal (17) et d'une unité de sortie d'ondes ultrasonores (40). L'unité de génération de signal est configurée pour générer un signal d'ondes sonores permettant de délivrer en sortie un son audible de guidage représentant un son audible destiné à un guidage de ligne de visée, le signal d'ondes sonores étant généré par la modulation d'ondes ultrasonores. L'unité de sortie d'ondes ultrasonores est disposée en face de la zone d'intérêt, entre l'article à reconnaître visuellement et la zone d'intérêt, et est configuré pour recevoir le signal d'ondes sonores et pour délivrer en sortie le son audible de guidage conformément au signal d'ondes sonores vers la zone d'intérêt.
PCT/JP2018/004648 2017-02-20 2018-02-09 Dispositif de guidage de ligne de visée WO2018151047A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017029208A JP2018137536A (ja) 2017-02-20 2017-02-20 視線誘導装置
JP2017-029208 2017-02-20

Publications (1)

Publication Number Publication Date
WO2018151047A1 true WO2018151047A1 (fr) 2018-08-23

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PCT/JP2018/004648 WO2018151047A1 (fr) 2017-02-20 2018-02-09 Dispositif de guidage de ligne de visée

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JP (1) JP2018137536A (fr)
WO (1) WO2018151047A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013070213A (ja) * 2011-09-22 2013-04-18 Panasonic Corp 音響再生装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013070213A (ja) * 2011-09-22 2013-04-18 Panasonic Corp 音響再生装置

Also Published As

Publication number Publication date
JP2018137536A (ja) 2018-08-30

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