JP2009177265A - Sound guide service system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a voice guide service system which reproduces an appropriate voice guide with rich presence. <P>SOLUTION: A voice guide service system is equipped with a main system comprising: a headphone 200 consisting of a headphone side receiving section 210 for receiving right voice data and left voice data through a visible light beam, and headphone side transmitting section 220 for transmitting position data acquired at a position data acquisition section and forward data acquired at a forward data acquisition section by radio; a main system side wireless receiving section 110 for receiving position data and forward data transmitted from the headphone side transmitting section 220 of a headphone; a voice data generation section 130 for generating right voice data and left voice data being reproduced by the headphone based on the position data and forward data received at the main system side wireless receiving section; and a main system side visible light beam transmission section 120 for transmitting the right voice data and left voice data generated in the voice data generation section, to the headphone. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an audio guidance service system that is installed in an exhibit providing facility such as a museum or an art museum and provides an explanation regarding the exhibit to each person who views the exhibit by audio guidance.

  In an exhibit providing facility such as an art museum or a museum, a system is known in which each exhibit is explained by voice to individual visitors. In this type of conventional system, the explanation of each exhibit is repeatedly broadcast. In this system, there was an inconvenience that the person who entered in the middle of the explanation was in the middle of the explanation and it was difficult to understand the explanation, and it was necessary to listen again from the head of the explanation to understand the explanation. . Therefore, recently, in order to solve such inconvenience, all explanations of exhibits that need to be explained are recorded in advance on a recording medium attached to a guidance device carried by each visitor by voice information, An automatic guidance system has been developed in which an attendant selects and listens to an explanation corresponding to an exhibit, or starts explanation automatically.

As this type of system, for example, in Patent Document 1 (Japanese Patent Laid-Open No. 9-258760), guide information on exhibits recorded on a recording medium that can be replaced by transmission means arranged near the exhibits. The information received from the transmission means is received and converted into voice information by a receiving means including a semiconductor memory carried by a visitor viewing the exhibit, and viewed by the attendee. A voice guidance system is disclosed.
Patent Document 2 (Japanese Patent Laid-Open No. 2003-309484) discloses an automatic guidance system that automatically guides an explanation about an exhibit using one or both of audio and images, and is installed in or near the exhibit itself. A plurality of first devices that transmit different ID signals for each exhibit, means for recording guide information of each exhibit by one or both of audio and images, and an ID transmitted by the first device A signal receiving means, and a second apparatus having a means for recognizing the ID of the exhibit from the received ID signal and reproducing the guide information of the exhibit from the recorded guide information. An automatic guidance system is disclosed.
Japanese Patent Laid-Open No. 9-258760 JP 2003-309484 A

  However, in the systems described in Patent Document 1 and Patent Document 2, the ID signal is transmitted by wireless communication means that transmits different ID signals for each exhibit, and this ID is transmitted by headphones carried by individual visitors. The system is configured to receive the signal, thereby recognizing the ID of the exhibit, and to reproduce the guide information of the exhibit from the recorded guide information with headphones. In the case where the interval is short, there is a possibility that wireless communication means that transmit different ID signals for each exhibit may interfere with each other. When such interference occurs, there is a problem in that guidance information of an exhibit different from the target exhibit that the attendee is viewing is reproduced with headphones. In addition, the systems described in Patent Document 1 and Patent Document 2 have a problem of lack of reality because the pre-recorded guidance information is simply reproduced.

  The present invention solves the above-described problems, and the invention according to claim 1 includes a right speaker and a left speaker that reproduce different audio data, and a right audio data that is reproduced by the right speaker, respectively. Headphone-side receiving unit that receives left audio data to be played back by the left speaker, a position data acquiring unit that acquires position data relating to the location, and front data that acquires forward data relating to which direction the forward direction is A headphone including an acquisition unit, a position data acquired by the position data acquisition unit, and a headphone side transmission unit that transmits the front data acquired by the front data acquisition unit; and a headphone side transmission unit of the headphones The main system side receiver that receives the transmitted position data and forward data, and the main system side receiver An audio data generation unit that generates right audio data and left audio data to be reproduced by the headphones based on the position data and the forward data, and right audio data and left audio data generated by the audio data generation unit; A voice guidance service system comprising: a main system including a main system-side transmission unit that transmits a message to the headphones.

  According to a second aspect of the present invention, in the voice guidance service system according to the first aspect, the voice data generation unit generates right voice data and left voice data by a voice localization technique.

  The invention according to claim 3 is the voice guidance service system according to claim 1 or 2, wherein the main system side transmission unit transmits right voice data and left voice data to the headphones by visible light communication. It is characterized by doing.

  According to a fourth aspect of the present invention, in the voice guidance service system according to any one of the first to third aspects, the main system side transmission unit transmits beacon data, and the headphone side reception unit transmits the beacon. By receiving data, the position data acquisition unit acquires position data, and the front data acquisition unit acquires front data.

  According to a fifth aspect of the present invention, in the voice guidance service system according to any one of the first to third aspects, the headphone includes a direction detection sensor, and the front data acquisition unit is moved forward by the direction detection sensor. It is characterized by acquiring data.

  According to the voice guidance service system of the present invention, voice data based on the position data acquired by the headphone position data acquisition unit and the front data acquired by the front data acquisition unit is provided. Therefore, it is possible to provide appropriate audio guidance for the target exhibit that the visitor is going to see.

  In addition, the audio data generation unit generates right audio data and left audio data using audio localization technology based on the position data and front data acquired by the headphones, so that you can hear the sound as if it were heard from that location. It is possible to provide guidance.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an outline of a block configuration of a voice guidance service system according to an embodiment of the present invention. FIG. 2 is a diagram showing an installation example of the voice guidance service system according to the embodiment of the present invention. FIG. 3 is an external perspective view of a headphone used in the voice guidance service system according to the embodiment of the present invention. FIG. 4 shows the visible light communication of the main system side transmission unit of the voice guidance service system according to the embodiment of the present invention. It is a block diagram which shows the example comprised by a technique.

  1 to 4, 100 is a main system, 110 is a main system side receiver, 120 is a main system side transmitter, 121 is a transmission controller, 122 is a modulator, 123 is a light emitter, and 130 is an audio data generator. 131 is a headphone information storage unit, 132 is a sound source data storage unit, 133 is a sound image localization data generation unit, 134 is a beacon data generation unit, 135 is a transmission data synthesis unit, 200 is a headphone, 210 is a headphone side reception unit, and 211 is Front side light receiving unit, 212 is rear side light receiving unit, 213 is right side light receiving unit, 214 is left side light receiving unit, 220 is headphone side transmission unit, 221 is transmission antenna unit, 230 is position data acquisition unit, 231 is front data acquisition unit 232 is a headphone ID storage unit, 233 is an audio control unit, 234 is a left speaker, 235 is a right speaker , 240 received data separation section 250 indicates transmission data combining unit, respectively.

  The voice guidance service system of the present invention is mainly composed of a main system 100 and a headphone 200 worn by visitors of an exhibition. Some of the components of the main system 100 are directly installed in a building such as a museum. It is installed in a place that is not visible to visitors. FIG. 2 shows a state in which the visitor is wearing the headphones 200 and is receiving a voice guidance service while viewing the exhibits 1 to 4.

  In the present embodiment, visible light communication using the light emitting unit 123 is used as a communication method from the main system 100 of the voice guidance service system to the headphones 200. The light emitting unit 123 is used as a normal lighting in the hall, and can transmit data of 1 and 0 by blinking at a frequency that cannot be recognized by humans.

  In the present embodiment, the case where four such light emitting units 123 a to d are used will be described as an example, but the number of such light emitting units 123 to be installed is not limited thereto. . In the present embodiment, the light emitting units 123a to 123d are provided in the ceiling portion in the vicinity of each of the exhibits 1 to 4. Each of the light emitting units 123a to 123d is assigned an ID (light emitting unit ID), and the light emitting unit ID is subjected to visible light communication as beacon data.

  By receiving the light emitting unit ID, the headphone 200 side can acquire position data relating to which exhibition area the visitor wearing the headphone 200 is in. Visible light communication is highly directional, so it will not cause interference between the boundaries of other exhibits.

  Moreover, in this embodiment, it is the structure which transmits the audio | voice data concerning the audio guidance of each of the exhibit 1 to the exhibit 4 with respect to the headphones 200 by visible light communication of the light emission parts 123a to 123d.

  Since there may be a plurality of visitors wearing headphones 200 in one exhibition area, each headphone 200 is assigned a unique ID (headphone ID). Each voice data is provided by communication.

  How to receive the above visible light communication on the headphone 200 side will be described with reference to FIG. FIG. 3 shows the appearance of the headphones 200. Like a normal headphone, the headphone 200 has a left speaker 234 and a right speaker 235, and each can play back right audio data and left audio data independently. The right audio data and the left audio data reproduced by the left speaker 234 and the right speaker 235 are transmitted from the main system side transmission unit 120 on the main system 100 side.

  In addition, on the top of the headphone 200, a configuration related to the headphone side receiver 210 and the headphone side transmitter 220 is mounted.

  As the headphone side receiving unit 210, a light receiving unit capable of receiving visible light communication from the light emitting units 123a to 123d is provided. The light receiving unit includes a light receiving sensor, a lens, and the like. In the example of the headphone 200 illustrated in FIG. 3, the light receiving unit is provided at four positions, front, rear, right, and left, with the arrow in FIG. The headphone 200 has a front-side light receiving unit 211, a rear-side light receiving unit 212, a right-side light receiving unit 213, and a left-side light receiving unit 214, and the headphone 200 depends on which one of the light emitting units 123a to 123d has a higher light intensity. Thus, it is possible to acquire more accurate position data, and it is also possible to acquire data (front data) in front of the headphones 200, that is, which direction the wearer is facing.

  The headphones 200 can selectively receive the light from the light emitting unit 123 by adjusting the lenses of the respective light receiving units, and can acquire more position data and front data.

  As a configuration related to the headphone side transmission unit 220, a transmission antenna unit 221 is provided. From the headphone side transmission unit 220, wireless communication can be used for the main system side reception unit 110 of the main system 100. Through such wireless communication, the headphone 200 is connected to the main system 100 from the headphone ID, the position data regarding which headphone 200 is in the vicinity of the exhibit, and the direction in which the wearer of the headphone 200 is facing. The forward data can be transmitted.

  Next, the overall configuration of the voice guidance service system according to the embodiment of the present invention will be described with reference to FIG. The main system 100 mainly includes a main system side receiving unit 110, a main system side transmitting unit 120, and an audio data generating unit 130.

  The main system side receiving unit 110 acquires “headphone ID”, “position data” related to the location of the headphones, and “front data” related to which direction the headphones are in front from each headphone 200. It has become.

  The audio data generation unit 130 is configured to generate audio data to be provided to individual headphones based on the “headphone ID”, “position data”, and “front data” received by the main system side reception unit 110. .

  In the headphone information storage unit 131 of the audio data generation unit 130, the headphone 131 of which “headphone ID” exists, the headphone 131 of which ID is located in which position and in which direction (“position data”, “front data”). Or memorize.

  The sound source data storage unit 132 of the sound data generation unit 130 stores sound source data of sound data related to the guide information of the exhibits 1 to 4.

  Based on the “position data”, “front data” stored in the headphone information storage unit 131, and the sound source data stored in the sound source data storage unit 132, the sound image localization data generation unit 133 is connected to the headphone of each ID. On the other hand, right audio data and left audio data using sound image localization technology are generated in order to provide realistic audio data. According to such a sound image localization technique, it is possible to express where the sound source is, and a headphone wearer can feel as if there is a sound source in the direction of the exhibit. As such a sound image localization technique, a known technique as described in JP-A-2005-333621 can be used.

  Such an audio data generation unit 130 can be easily realized by using an audio server or the like.

  The beacon data generating unit 134 generates beacon data including the light emitting unit IDs of the light emitting units 123a to 123d. The headphone 200 can acquire “position data” and “forward data” by capturing the beacon data.

  The transmission data synthesis unit 135 emits light generated by the right audio data, left audio data, and beacon data generation unit 134 for each headphone ID generated by the sound image localization data generation unit 133 for transmission as visible light communication data. It is the structure which synthesize | combines the beacon data for every part ID.

  The main system side transmission unit 120 is a mechanism for transmitting the data synthesized by the transmission data synthesis unit 135 to the headphones 200. More specifically, the main system side transmission unit 120 transmits the right audio data for each headphone ID, the left audio data, and the beacon data for each light emitting unit ID by visible light communication with a block configuration as shown in FIG. .

  As shown in FIG. 4, the main system side transmission unit 120 includes a transmission control unit 121, a modulation unit 122, and a light emitting unit 123. The transmission control unit 121 performs an operation of selecting which data is to be communicated by which light emitting unit and distributing the selected data to each of the modulation units 122a to 122d.

  The modulation units 122a to 122d modulate the data received from the transmission control unit 121, and based on this modulation, the respective light emitting units 123a to 123d transmit digital data by blinking at a frequency that cannot be recognized by humans. .

  FIG. 5 is a diagram showing a configuration example of data transmitted from the main system side transmission unit 120 of the voice guidance service system according to the embodiment of the present invention. FIG. 5A shows an example of a data configuration in the case where there is a headphone 200 that should transmit data in the exhibition area, and FIG. 5B shows a headphone that should transmit data in the exhibition area. An example of the data structure when 200 does not exist is shown.

  From the main system side transmission unit 120, different types of data are transmitted for each time slot. As shown in FIGS. 5A and 5B, the beacon data including the light emitting unit ID information is always transmitted regardless of whether or not the headphones 200 to which the data is to be transmitted exist in the area. It has come to be.

  Further, when there is no headphone 200 to transmit data in the area, data is not transmitted in the time slot between beacon data. If it sees as operation | movement of the light emission part 123, it can avoid data by making a light emission state continue continuously.

  When there is a headphone 200 to transmit data in the area, the headphone ID data of the headphone 200 to be transmitted and the right audio data to be played back by the headphone 200 in the time slot between the beacon data. , Send left audio data.

  6 to 8 show examples of data transmission by the light emitting units 123a to 123d under the situation in FIG. FIG. 2 shows a situation where a visitor wearing the headphones 200a observes the exhibit 1 and a visitor wearing the headphones 200b observes the exhibit 4.

  FIG. 6 is a diagram showing an example of light emitting unit ID assignment in the voice guidance service system according to the embodiment of the present invention, and FIG. 7 is a diagram showing an example of headphone ID assignment in the voice guidance service system according to the embodiment of the present invention. FIG. 8 is a diagram showing an example of data transmission from the main system side transmission unit 120 of the voice guidance service system according to the embodiment of the present invention.

  Next, the headphone 200 of the voice guidance service system according to the embodiment of the present invention will be described in more detail with reference to FIG. In FIG. 1, the headphone-side receiver 210 of the headphone 200 receives four types of data: headphone ID data, right audio data, left audio data, and beacon data. The reception data separation unit 240 has a function of separating data according to these data types and sending the data to a predetermined processing unit.

  The beacon data is separated by the reception data separation unit 240 and transmitted to the position data acquisition unit 230 and the forward data acquisition unit 231. The headphone ID data is separated by the reception data separation unit 240 and transmitted to the headphone ID storage unit 232, and the right audio data. The left audio data is separated by the reception data separation unit 240 and sent to the audio control unit 233.

  Based on the received beacon data, the position data acquisition unit 230 detects position data related to which area the headphones 200 are located, and sends the position data to the transmission data synthesis unit 250. Further, the forward data acquisition unit 231 detects the forward data according to which method the front of the headphones 200 is based on the intensity of the beacon data and the like, and sends the forward data to the transmission data synthesis unit 250.

  The headphone ID storage unit 232 stores its own headphone ID, and sends its own headphone ID data to the transmission data synthesis unit 250. Further, when the headphone ID data received from the received data separation unit 240 is the same as the own headphone ID data, the headphone ID storage unit 232 sends a reproduction permission signal to the audio control unit 233, and the own headphone ID data If it is different from the above, a playback non-permission is sent to the audio control unit 233.

  When receiving the reproduction permission signal from the headphone ID storage unit 232, the audio control unit 233 controls the right speaker 235 and the left speaker 234 to reproduce the right audio data and the left audio data from the reception data separation unit 240. On the other hand, when the audio control unit 233 receives a playback non-permission signal from the headphone ID storage unit 232, the audio control unit 233 sends the right audio data and the left audio data from the reception data separation unit 240 to the right speaker 235 and the left speaker 234. Control not to play.

  The transmission data synthesizing unit 250 synthesizes three types of data, that is, the position data from the position data acquiring unit 230, the front data from the front data acquiring unit 231 and the own headphone ID data from the headphone ID storage unit 232. To the side transmission unit 220.

  The headphone side transmission unit 220 transmits the combined position data, front data, and headphone ID data to the main system.

  According to the voice guidance service system of the present invention as described above, right and left voice data based on the position data acquired by the position data acquisition unit 230 of the headphones 200 and the front data acquired by the front data acquisition unit 231. Therefore, it is possible to provide appropriate audio guidance for the target exhibit that the visitor is going to see.

  In addition, since the audio data generation unit 130 generates the right audio data and the left audio data by the audio localization technology based on the position data and the front data acquired by the headphones 200, it feels as if it is heard from that location. It is possible to provide an overflowing voice guidance.

  In the present embodiment, the configuration of the audio data generation unit 130 has been described based on an example provided on the main system 100 side. However, if the volume on the headphone 200 side does not matter, the configuration of the audio data generation unit 130 will be described. A part of the configuration may be provided on the headphone 200 side.

  In the present embodiment, the headphone 200 receives visible light communication from the light emitting unit 123 and detects the position data and the forward data based on this, but the headphone 200 has a direction detection sensor. The front data acquisition unit can be configured to acquire the front data by this azimuth detection sensor.

  Also, if a gyro is mounted on the headphone 200 and a mechanism that detects the tilt of the headphone 200 is adopted, left and right audio data can be generated by sound image localization technology based on more advanced information. A voice guidance service full of feeling can be provided.

  Further, according to the mechanism of the voice guidance service system of the present invention, for example, sound source data in different languages can be prepared for each headphone ID, so that it is possible to construct a voice guidance service that supports multiple languages. Become.

It is a figure which shows the outline | summary of the block configuration of the voice guidance service system which concerns on embodiment of this invention. It is a figure which shows the example of installation of the voice guidance service system which concerns on embodiment of this invention. 1 is an external perspective view of a headphone used in a voice guidance service system according to an embodiment of the present invention. It is a block diagram which shows the example which comprises the main system side transmission part of the audio | voice guidance service system which concerns on embodiment of this invention by visible light communication technique. It is a figure which shows the structural example of the data transmitted from the main system side transmission part 120 of the voice guidance service system which concerns on embodiment of this invention. It is a figure which shows the example of light emission part ID provision in the voice guidance service system which concerns on embodiment of this invention. It is a figure which shows the example of headphone ID provision in the audio | voice guidance service system which concerns on embodiment of this invention. It is a figure which shows the example of data transmission from the main system side transmission part 120 of the voice guidance service system which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Main system, 110 ... Main system side receiving part, 120 ... Main system side transmission part, 121 ... Transmission control part, 122 ... Modulation part, 123 ... Light emission part, 130・ ・ ・ Sound data generation unit 131 131 Headphone information storage unit 132 Sound source data storage unit 133 Sound image localization data generation unit 134 Beacon data generation unit 135 Transmission Data synthesizing unit, 200 ... headphone, 210 ... headphone side receiving unit, 211 ... front side light receiving unit, 212 ... back side light receiving unit, 213 ... right side light receiving unit, 214 ... left side Light receiving unit, 220 ... headphone side transmission unit, 221 ... transmission antenna unit, 230 ... position data acquisition unit, 231 ... front data acquisition unit, 232 ... headphone I Storage unit, 233 ... audio controller, 234 ... left speaker, 235 ... right speaker, 240 ... reception data separation unit, 250 ... transmission data combining unit

Claims (5)

Right and left speakers that play different audio data,
A right side audio data to be played back by the right speaker, and a headphone side receiver that receives the left audio data to be played back by the left speaker;
A position data acquisition unit for acquiring position data related to the location;
A forward data acquisition unit for acquiring forward data according to which direction the forward direction is,
Headphones composed of a headphone side transmission unit that transmits position data acquired by the position data acquisition unit and front data acquired by the front data acquisition unit;
A main system side receiver that receives position data and forward data transmitted from the headphone side transmitter of the headphones;
An audio data generation unit that generates right audio data and left audio data to be reproduced by the headphones based on position data and front data received by the main system side reception unit;
A voice guidance service system comprising: a main system including a main system side transmission unit that transmits right audio data and left audio data generated by the audio data generation unit to the headphones. The voice guidance service system according to claim 1, wherein the voice data generation unit generates right voice data and left voice data by a voice localization technique. 3. The voice guidance service system according to claim 1, wherein the main system side transmission unit transmits right voice data and left voice data to the headphones by visible light communication. 4. The main system side transmission unit transmits beacon data,
When the headphone side receiving unit receives the beacon data,
The voice guidance service system according to any one of claims 1 to 3, wherein the position data acquisition unit acquires position data, and the front data acquisition unit acquires front data. 4. The voice guidance service system according to claim 1, wherein the headphone includes a direction detection sensor, and the front data acquisition unit acquires front data by the direction detection sensor. 5.

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