JP2017033398A - Terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a processing load necessary to reproduce content delivered to a terminal device in conjunction with outputting guiding voice.SOLUTION: A terminal device can communicate with an information providing device that delivers content related to guiding voice every time the guiding voice is output. The terminal device comprises: a reception unit for receiving the content delivered by the information providing device; a storage unit for storing the content received by the reception unit; an instruction reception unit for receiving an instruction from a user; and a reproduction control unit for having a reproduction device reproduce the content when the instruction reception unit receives the instruction from the user.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a technique for playing back content such as images and sounds on a terminal device.

  Various techniques for reproducing content such as images and sounds on a mobile terminal have been proposed. For example, Patent Literature 1 discloses a technique for distributing content corresponding to a position of a terminal device registered in advance as a distribution target.

JP 2002-351905 A

  For example, in transportation facilities such as trains and buses, guidance voices that guide the user about information related to getting on and off, transfer, and the like are reproduced as needed. If it is possible to provide the user's terminal device with the content of the guidance voice pronunciation, such as the character string and the translated sentence, for example, it is difficult to understand the language of the guidance voice or the hard-of-hearing person who is difficult to hear the guidance voice. It is convenient for users such as foreigners to understand the contents of the guidance voice. On the other hand, when all the content distributed every time the guidance voice is emitted is reproduced on the terminal device, the content that is unnecessary for the user of the terminal device is reproduced, and the processing load on the terminal device that reproduces the content is increased. The problem of increasing can arise. In view of the above circumstances, an object of the present invention is to reduce a processing load necessary for reproduction of content distributed to a terminal device in conjunction with sound emission of a guidance voice.

  In order to solve the above problems, the terminal device of the present invention is a terminal device capable of communicating with an information providing device that distributes content related to the guidance voice every time the guidance voice is emitted. A receiving unit that receives the content distributed from, a storage unit that stores the content received by the receiving unit, an instruction receiving unit that receives an instruction from a user, and the instruction receiving unit receives an instruction from the user A playback control unit that causes the playback device to play back the content. In the above aspect, the content is played back when an instruction from the user is received in a situation where the content is sequentially delivered from the information providing device to the terminal device every time the guidance voice is emitted. If there is no instruction, the content is not reproduced. Therefore, it is possible to selectively present the user's desired content to the user among a plurality of contents that are sequentially distributed in conjunction with the sound emission of the guidance voice. In addition, it is possible to reduce the processing load necessary for playing back content by the playback device, compared to a configuration in which all the content received by the receiving unit is played back regardless of the user's intention.

  In the terminal device according to a preferred aspect of the present invention, when the instruction receiving unit receives an instruction from a user, the reproduction control unit causes the content received by the receiving unit to be in the vicinity of the instruction to the reproducing apparatus. Let it play. In the above aspect, since the content received by the receiving unit is reproduced immediately after the instruction from the user, the user can determine the temporal correspondence between the guidance voice listened to by the user and the content reproduced from the playback device. There is an advantage that it is easy to grasp. For example, when the user desires to reproduce the content as a result of listening to the guidance voice, the content corresponding to the guidance voice is reproduced by giving an instruction to the terminal device immediately after listening to the guidance voice. Is possible.

  In the terminal device according to a preferred aspect of the present invention, the storage unit stores a plurality of contents sequentially received by the receiving unit, and the instruction receiving unit issues an instruction to select any of the plurality of contents. The playback control unit receives the content from the user, and causes the playback device to play the content when the instruction receiving unit receives an instruction to select the content from the user. In the above aspect, the content selected by the user is reproduced from the plurality of contents received by the receiving unit sequentially from the information providing apparatus and stored in the storage unit. Therefore, it is possible to reproduce desired content corresponding to any of a plurality of guidance sounds that the user has listened to in the past.

  A terminal device according to a preferred aspect of the present invention is a terminal device capable of communicating with the information providing device that distributes content corresponding to the guidance identification information to a terminal device registered by a registration request including guidance identification information. And an identification information acquisition unit that acquires guidance identification information that can be acquired at a place where the guidance voice is emitted, and the guidance voice is emitted when the identification information acquisition unit cannot acquire the guidance identification information. A candidate presenting unit for presenting a plurality of candidates for a location to the user, guidance identification information acquired by the identification information acquiring unit, or a candidate selected by the user from among a plurality of candidates presented by the candidate presenting unit Transmitting means for transmitting a registration request including corresponding guidance identification information to the information providing apparatus. In the above aspect, the registration request including the guidance identification information acquired at the place where the guidance voice is emitted is transmitted to the information providing device, and the terminal device is registered as a content distribution destination by the registration request. The content can be distributed only to the terminal device located in the place where the guidance voice is emitted. Further, when the identification information acquisition unit cannot acquire the guidance identification information, a plurality of candidates for a place where the guidance voice is emitted is presented to the user, and guidance corresponding to the candidate selected by the user among the plurality of candidates Since the registration request including the identification information is transmitted to the information providing apparatus, even if the terminal apparatus cannot acquire the guidance identification information, the terminal apparatus can be registered as a content distribution destination.

  The terminal device according to a preferred aspect of the present invention includes a position specifying unit that specifies the position of the terminal device, and the transmission unit is configured to display the position when the identification information acquisition unit cannot acquire the guidance identification information. A registration request for registering the terminal device as a distribution destination of content corresponding to a location close to the position specified by the specifying unit is transmitted to the information providing device. In the above aspect, when the identification information acquisition unit cannot acquire the guidance identification information, a registration request for registering the terminal device as a distribution destination of content related to the location near the position specified by the position specifying unit is sent to the information providing device. Therefore, even when the terminal device cannot acquire the guidance identification information, the terminal device can be registered as a content distribution destination.

  A terminal device according to a preferred aspect of the present invention includes a position specifying unit that specifies a position of the terminal device, and the candidate presentation unit includes a plurality of positions within a predetermined range including the position specified by the position specifying unit. Present the candidate to the user. In the above aspect, since a plurality of candidates within a predetermined range including the position of the terminal device are presented to the user, compared to a configuration in which a plurality of candidates are presented regardless of the actual position of the terminal device. It is possible to reduce the burden on the user who selects the place where the terminal device is located (the place where the guidance voice is emitted).

  In order to solve the above-described problems, an information providing system according to the present invention includes a sound emitting device that sequentially emits guide voices, and content related to the guide voices each time the guide voices are emitted by the sound emitting unit. An information providing system including a terminal device capable of communicating with the information providing device, wherein the terminal device receives a content transmitted from the information providing device; A storage unit that stores the content received by the receiving unit, an instruction receiving unit that receives an instruction from a user, and a playback control that causes the playback device to play the content when the instruction receiving unit receives an instruction from the user Part. According to the above information providing system, the same effect as the terminal device of the present invention is realized.

1 is a configuration diagram of an information providing system according to a first embodiment of the present invention. It is a block diagram of a voice guidance device. It is a block diagram of a signal synthetic | combination part. It is a block diagram of a terminal device. It is a block diagram of an information provision apparatus. It is explanatory drawing of the reproduction | regeneration instruction | indication of a content. It is explanatory drawing of an example of reproduction | regeneration of a content. It is explanatory drawing of the temporal relationship between the sound emission of guidance voice, a provision instruction | indication, and a reproduction | regeneration instruction | indication. It is explanatory drawing of operation | movement of an information provision system. It is a block diagram of the information provision apparatus of 2nd Embodiment. It is a block diagram of the terminal device of 2nd Embodiment. It is explanatory drawing of the selection instruction | indication of a content. It is a block diagram of the terminal device of 3rd Embodiment. It is explanatory drawing of operation | movement of a terminal device. It is explanatory drawing of the selection instruction | indication of a candidate. It is a block diagram of the terminal device of 4th Embodiment. It is explanatory drawing of operation | movement of a terminal device.

<First Embodiment>
FIG. 1 is a configuration diagram of an information providing system 1 according to the first embodiment. An information providing system 1 according to the first embodiment is a computer system that provides information to a user U of a transportation facility such as a train or a bus, and includes a voice guidance device 10 and an information providing device 20. The voice guidance device 10 is installed in a vehicle M such as a train or a bus, and communicates with the information providing device 20 via a communication network 400 including the Internet. The information providing apparatus 20 is a server (for example, a web server) connected to the communication network 400, for example. The user U carries the terminal device 30 and gets on the vehicle M. The terminal device 30 is a portable information processing device such as a mobile phone or a smartphone. In practice, a plurality of users U in the vehicle M can use the service of the information providing system 1, but in the following description, attention is focused on one terminal device 30 for convenience.

  The voice guidance device 10 emits guidance voice (hereinafter referred to as “guidance voice”) relating to transportation to the user U in the vehicle M. The guidance voice is, for example, a voice that guides boarding / exiting of transportation facilities (name of a stop point such as a train station or bus stop), transfer, fare, operation status (for example, presence or absence of delay), surrounding sightseeing spots, and the like. The guidance voice selected by the guide OP managing the voice guidance device 10 according to the operation status of the vehicle M is emitted from the voice guidance device 10.

  The voice guidance device 10 transmits a provision instruction P for the content C related to the guidance voice to the information provision device 20 in parallel with the release of the guidance voice. The information providing apparatus 20 transmits the content C specified by the provision instruction P to the terminal apparatus 30. The content C is a voice or an image (for example, a still image, a moving image, a character string) related to the guidance voice. For example, a character string expressing the pronunciation content of the guidance voice, a character string obtained by translating the language of the pronunciation content into another language, or various information such as a voice is provided to the terminal device 30 as the content C. In the first embodiment, provision of guidance related to a plurality of guidance targets is assumed. The guidance object means an object of guidance, and is typically a place where guidance voice is emitted. In FIG. 1, the vehicle M of the transportation facility is illustrated as the guidance target, but in reality, the voice guidance device 10 is installed for each of the plurality of guidance subjects (for example, for each vehicle M of the same kind of transportation facility). On the other hand, the information providing apparatus 20 is shared across a plurality of guidance objects.

  FIG. 2 is a configuration diagram of the voice guidance device 10. As illustrated in FIG. 2, the voice guidance device 10 includes an operation unit 11, a control unit 12, a storage unit 13, a sound emitting unit 14, and a communication unit 15.

  The storage unit 13 stores programs and various data. For example, a known recording medium such as a semiconductor recording medium or a magnetic recording medium or a combination of a plurality of types of recording media is arbitrarily adopted as the storage unit 13. As illustrated in FIG. 2, in the first embodiment, a plurality of acoustic signals (hereinafter referred to as “guidance signals”) AG representing different guidance voices are stored in the storage unit 13. The guidance signal AG corresponding to any one type of guidance voice is associated with the identification information D of the content C related to the guidance voice. Further, the storage unit 13 stores identification information (hereinafter referred to as “guidance identification information”) G unique to the guidance target (for example, the vehicle M) on which the voice guidance device 10 is installed.

  The operation unit 11 is an input device operated by the guider OP. For example, the guider OP can select any one guide signal AG (guidance voice) from among the plurality of guide signals AG stored in the storage unit 13 by appropriately operating the operation unit 11. is there.

  The control unit 12 is configured by a processing device such as a CPU, for example. When the control unit 12 executes the program stored in the storage unit 13, each function (reading unit 122, signal synthesis unit 124, provision instruction unit 126) of the voice guidance device 10 is realized.

  The reading unit 122 reads the guidance signal AG and the guidance identification information G from the storage unit 13 and notifies the signal combining unit 124 of the guidance signal AG when the guider OP selects the guidance signal AG by operating the operation unit 11. On the other hand, the providing instruction unit 126 is notified of the identification information D and the guidance identification information G associated with the guidance signal AG.

  The signal synthesizer 124 generates the reproduction signal S1 by superimposing the guidance identification information G on the guidance signal AG. A known method can be arbitrarily employed for superimposing (acoustic watermarking) the guidance identification information G on the guidance signal AG. For example, the method disclosed in Japanese Patent Application Laid-Open No. 2014-187686 is preferable.

  FIG. 3 is a block diagram illustrating a configuration of the signal synthesis unit 124. As illustrated in FIG. 3, the signal synthesis unit 124 includes a modulation processing unit 1242 and a mixing processing unit 1244. The modulation processing unit 1242 generates a modulation signal SG within a specific frequency band by frequency-modulating a carrier wave such as a sine wave having a predetermined frequency with the guide identification information G. The frequency band of the modulation signal SG is a frequency band in which sound can be emitted by the sound emitting unit 14 and collected by the terminal device 30, and sound (voice or musical sound) that the user U can listen to in a normal environment. It is included in the range of a frequency band (for example, 18 kHz or more and 20 kHz or less) exceeding a frequency band (for example, about 16 kHz or less within the audible range). The mixing processing unit 1244 mixes (typically adds) the guide signal AG supplied from the reading unit 122 and the modulation signal SG generated by the modulation processing unit 1242 to generate the reproduction signal S1. Note that the method by which the modulation processing unit 1242 generates the modulation signal SG is not limited to the above example (frequency modulation). For example, as disclosed in International Publication No. 2010/016589, guidance identification is performed by sequentially performing spread modulation of guidance identification information G using a spreading code and frequency conversion using a carrier wave of a predetermined frequency. It is also possible to generate a modulation signal SG containing the information G as an acoustic component in a specific frequency band.

  The sound emitting unit 14 in FIG. 2 is an acoustic device that emits sound according to the reproduction signal S1 supplied from the signal synthesis unit 124. That is, the sound emitting unit 14 emits sound including the guidance voice and the acoustic component (modulation signal SG) of the guidance identification information G. The D / A converter that converts the reproduction signal S1 from digital to analog is not shown for convenience.

  The provision instruction unit 126 generates a provision instruction P for the content C. Specifically, the providing instruction unit 126 generates a providing instruction P that instructs the information providing apparatus 20 to distribute the content C related to the guidance sound emitted from the sound emitting unit 14. The providing instruction P includes the identification information D of the content C and the guidance identification information G of the vehicle M.

  The communication unit 15 is a communication device that communicates with the information providing apparatus 20 via the communication network 400. Specifically, the communication unit 15 transmits the provision instruction P generated by the provision instruction unit 126 to the information providing apparatus 20 via the communication network 400. As understood from the above description, the sound emission of the guidance voice by the sound emission unit 14 and the transmission of the provision instruction P to the information providing device 20 are executed in parallel. That is, the provision instruction P is transmitted from the voice guidance device 10 to the information providing device 20 every time the guidance voice is emitted by the sound emission unit 14.

  FIG. 4 is a configuration diagram of the terminal device 30. As illustrated in FIG. 4, the terminal device 30 includes a sound collection unit 31, an operation unit 32, a storage unit 33, an output unit 34, a communication unit 35, and a control unit 36. The sound collection unit 31 is an acoustic device (microphone) that collects ambient sounds, and collects sound emitted from the sound emission unit 14 of the voice guidance device 10 to generate an acoustic signal S2. The acoustic signal S2 contains the acoustic component of the guidance identification information G. Note that an A / D converter that converts the acoustic signal S2 generated by the sound pickup unit 31 from analog to digital is not shown for convenience. The output unit 34 outputs various types of information. The output unit 34 of the first embodiment is a display device (for example, a liquid crystal display panel) that displays character strings and images. The storage unit 33 stores programs and various data. For example, a known recording medium such as a semiconductor recording medium or a magnetic recording medium or a combination of a plurality of types of recording media is arbitrarily adopted as the storage unit 33. In the first embodiment, identification information (hereinafter referred to as “terminal identification information”) T for uniquely identifying the terminal device 30 is stored in the storage unit 33.

  The control unit 36 is configured by a processing device such as a CPU, for example. When the control unit 36 executes the program stored in the storage unit 33, each function (the information extraction unit 361, the instruction reception unit 362, the reproduction control unit 363, and the management unit 364) of the terminal device 30 is realized.

  The information extraction unit 361 extracts the guidance identification information G notified from the voice guidance device 10 by demodulating the acoustic signal S2 generated by the sound collection unit 31. The information extraction unit 361 extracts the guidance identification information G by emphasizing and demodulating (frequency demodulating) the band component of the frequency band including the guidance identification information G in the acoustic signal S2 with, for example, a band pass filter. As understood from the above description, the guidance identification information G is transmitted from the voice guidance device 10 to the terminal device 30 by acoustic communication using sound that is air vibration as a transmission medium. That is, the sound emitting unit 14 that emits the guidance voice is used as an element that transmits the guidance identification information G, and the sound collection unit 31 of the terminal device 30 functions as an element that receives the guidance identification information G.

  The management unit 364 generates a registration request R including the guidance identification information G extracted by the information extraction unit 361. The registration request R is a signal for requesting registration (check-in) of the terminal device 30 as a provision target of the content C related to the guidance voice of the guidance target specified by the guidance identification information G. The registration request R includes the terminal identification information T stored in the storage unit 33 and the guidance identification information G extracted by the information extraction unit 361. Guidance identification information G of any one guidance object can be received in a limited manner at a place where the guidance voice of the guidance object is emitted (within a range where the sound emitted by the sound emitting unit 14 reaches with a significant intensity). It is. Accordingly, it is estimated that the terminal device 30 that has transmitted the registration request R including the guidance identification information G of a specific guidance target is located in a place (for example, in the vehicle M) where the guidance voice of the guidance target is emitted.

  The communication unit 35 is a communication device that communicates with the information providing apparatus 20 via the communication network 400. Specifically, the communication unit 35 transmits the registration request R generated by the management unit 364 to the information providing apparatus 20, and receives the content C transmitted from the information providing apparatus 20 from the communication network 400.

  As described above, the voice guidance device 10 transmits the provision instruction P to the information provision device 20 every time the guidance voice is emitted, and the information provision device 20 receives the provision instruction P from the voice guidance device 10 every time the terminal device receives the provision instruction P. The content C is transmitted to 30. As understood from the above description, the communication unit 35 of the terminal device 30 functions as an element (receiving unit) that receives the content C transmitted from the information providing device 20 every time the guidance voice is emitted. Content C that the communication unit 35 sequentially receives from the information providing apparatus 20 is stored in the storage unit 33.

  FIG. 5 is a configuration diagram of the information providing apparatus 20. The information providing apparatus 20 is, for example, a server apparatus (typically a web server) connected to the communication network 400, and includes a control unit 22, a storage unit 24, and a communication unit 26 as illustrated in FIG. . The communication unit 26 communicates with each of the terminal device 30 and the voice guidance device 10 via the communication network 400. The communication unit 26 according to the first embodiment receives the provision instruction P transmitted from the voice guidance device 10 and the registration request R transmitted from the terminal device 30 via the communication network 400. The storage unit 24 is a known recording medium such as a magnetic recording medium or a semiconductor recording medium, and stores a plurality of contents C and registration information E. As illustrated in FIG. 5, each of the plurality of contents C (C11, C12,...) Includes identification information D (D11, D12,...) Of the contents C and guidance voice corresponding to the contents C. Is added with guidance identification information G (G1, G2,...) Of the guidance object (vehicle M) from which sound is emitted.

  The registration information E designates the terminal device 30 that is the provision target of the content C related to the guidance voice of each guidance target. Specifically, as illustrated in FIG. 5, the registration information E provides guidance identification information G (G 1, G 2,...) Specific to the guidance target and content C related to the guidance voice of the guidance target. It is a data table in which terminal identification information T (T11, T12,...) Of one or more target terminal devices 30 is associated.

  The control unit 22 includes a processing device such as a CPU, for example, and functions as a registration processing unit 222 and an information distribution unit 224 by executing a program stored in the storage unit 24. The registration processing unit 222 updates the registration information E according to the registration request R transmitted from the terminal device 30. Specifically, the registration processing unit 222 uses the terminal identification information T specified in the registration request R for the guidance identification information G specified in the registration request R among the plurality of guidance identification information G included in the registration information E. To correspond. That is, the terminal device 30 of the terminal identification information T specified in the registration request R is registered as a distribution target of the guidance target content C specified by the guidance identification information G in the registration request R.

  The information distribution unit 224 receives each content C of the identification information D specified by the provision instruction P received from the voice guidance device 10 in each terminal registered in the registration information E for the guidance identification information G specified by the provision instruction P. The information is transmitted to the device 30 (that is, the distribution target of the content C registered for the guidance target). As described above, the terminal device 30 that has transmitted the registration request R including the guidance identification information G of a specific guidance target is estimated to be located in a place (for example, in the vehicle M) where the guidance voice of the guidance target is emitted. . Accordingly, the content C corresponding to the guidance voice of the guidance target is provided to the terminal device 30 located at the place where the guidance voice of the guidance target is emitted.

  As described above, in the first embodiment, the content C related to the guidance voice is distributed (push delivery) from the information providing device 20 to the terminal device 30 every time the guidance voice is emitted. With the above configuration, when all the content C distributed every time the guidance voice is emitted is reproduced on the terminal device 30, the content U unnecessary for the user U of the terminal device 30 is reproduced. There is also a problem that the processing load of the terminal device 30 increases. In consideration of the above circumstances, the first embodiment adopts a configuration in which the content C is reproduced when the user U instructs, while the content C is not reproduced when the user U does not instruct.

  The instruction receiving unit 362 of the terminal device 30 illustrated in FIG. 4 receives an instruction from the user U to the operation unit 32. The instruction receiving unit 362 according to the first embodiment receives from the user U an instruction to reproduce the content C distributed from the information providing apparatus 20 (hereinafter referred to as “reproduction instruction”). For example, as illustrated in FIG. 6, a playback instruction screen 340 including a confirmation button 342 is displayed on the output unit 34, and the instruction receiving unit 362 receives an operation from the user U with respect to the confirmation button 342 as a playback instruction. When the user U listens to the guidance sound emitted from the sound emitting unit 14 and guesses that the guidance voice is related to himself / herself, the user U gives a reproduction instruction, while the guidance voice is irrelevant to himself / herself. When guessed, no reproduction instruction is given.

  The reproduction control unit 363 causes the output unit 34 to display the content C received from the information providing apparatus 20 when the instruction receiving unit 362 receives a reproduction instruction from the user U. For example, when the instruction receiving unit 362 receives a playback instruction for the content C from the user U by an operation on the confirmation button 342 of the playback instruction screen 340 illustrated in FIG. 6, the playback control unit 363 receives the playback command from the user U. The communication unit 35 causes the output unit 34 to display the content C received from the information providing apparatus 20 immediately (immediately before) the reproduction instruction. That is, the output unit 34 functions as a playback device that plays back the content C in response to an instruction from the playback control unit 363.

  FIG. 7 is an explanatory diagram of an example of the reproduction of the content C. FIG. 7 illustrates a situation in which the content C corresponding to the guidance voice “Next is Shibuya” emitted from the sound emitting unit 14 is reproduced by the output unit 34 in response to a reproduction instruction from the user U. ing. FIG. 7 illustrates a case where the content C of the character string “The next station is Shibuya.” Obtained by translating the utterance content of the guidance voice into another language is reproduced.

  FIG. 8 is an explanatory diagram of the temporal relationship between the sound emission of the guidance voice, the provision instruction P, and the reproduction instruction. A provision instruction P is transmitted from the voice guidance device 10 to the information providing apparatus 20 every time the guidance voice is emitted, and as shown in FIG. 8, the provision instruction P is transmitted, the content C is selected and distributed to the terminal device 30. The terminal device 30 actually receives the content C when it is delayed from the transmission of the provision instruction P for a necessary time. In the first embodiment, since the content C received immediately before the reproduction instruction by the user U is reproduced, the terminal device 30 needs to receive the content C at the time of the reproduction instruction. In consideration of the above circumstances, when the user U who has listened to the guidance voice determines whether or not the information is necessary for the user U and can give a reproduction instruction to the operation unit 32, the guidance by the terminal device 30 is given. As the reception of the audio content C has already been completed, the transmission of the provision instruction P by the audio guidance device 10 is not delayed from the start of the emission of the guidance audio (for example, immediately after starting the emission of the guidance audio) Or before sound emission). FIG. 8 illustrates a case where the provision instruction P is transmitted substantially simultaneously with the start of the guidance voice emission.

<Overall operation>
FIG. 9 is an explanatory diagram of the overall operation of the information providing system 1. With the selection of the guidance signal AG by the guide OP, the reproduction of the guidance voice is started by supplying the reproduction signal S1 to the sound emitting unit 14 (SA1), and the provision instruction unit 126 includes the identification information D and the guidance identification information. The provision instruction P of the content C including G is transmitted from the communication unit 15 to the information providing apparatus 20 (SA2). The information providing apparatus 20 selects the content C of the identification information D specified by the provision instruction P received from the voice guidance apparatus 10 (SA3). Then, the information providing apparatus 20 transmits the content C selected in step SA3 to each terminal apparatus 30 registered in the registration information E for the guidance identification information G specified by the provision instruction P (SA4).

  The communication unit 35 of the terminal device 30 receives the content C transmitted from the information providing device 20 from the communication network 400 (SA5), and stores the content C in the storage unit 33 (SA6). The playback control unit 363 of the terminal device 30 determines whether or not the instruction receiving unit 362 has received a playback instruction from the user U, for example, every predetermined time (SA7). When the instruction receiving unit 362 receives the playback instruction (SA7: YES), the playback control unit 363 causes the output unit 34 to play back the content C received immediately after the playback instruction (SA8). On the other hand, when the instruction to reproduce the content C is not received from the user U (SA7: NO), the reproduction of the content C is not executed.

  As described above, in the first embodiment, the instruction receiving unit 362 performs the user U under the situation where the content C is sequentially delivered from the information providing device 20 to the terminal device 30 every time the guidance voice is emitted. The content C is reproduced when the reproduction instruction of the content C is received from the user U, and the content C is not reproduced when there is no reproduction instruction from the user U. Therefore, it is possible to selectively reproduce the content desired by the user U among the plurality of contents C that are sequentially distributed in conjunction with the release of the guidance voice. Further, it is possible to reduce the processing load necessary for the reproduction of the content C by the output unit 34 as compared with a configuration in which all the content C received by the communication unit 35 is reproduced regardless of the intention of the user U. It is.

Second Embodiment
In the first embodiment, one content C received by the terminal device 30 immediately before the user U's playback instruction is played back. However, in the actual usage scene, the terminal C 30 confirms the content C received in the past. May be desired by the user U. In consideration of the above circumstances, in the second embodiment, in addition to the configuration of the first embodiment, the terminal device 30 instructs the user U to receive a plurality of contents C received in the past every time the guidance voice is emitted. To play back selectively.

  FIG. 10 is a configuration diagram of the information providing apparatus 20 according to the second embodiment. As illustrated in FIG. 10, in the second embodiment, content information L (L11, L12,...) Is further added to each of the plurality of contents C (C11, C12,...). The content information L is information (for example, a headline character string) that represents the general content of the content C. When the provision instruction P transmitted from the voice guidance device 10 is received every time the guidance voice is emitted as in the first embodiment, the information provision apparatus 20 and the content C specified by the identification information D of the provision instruction P The content information L related to the content C is transmitted to the terminal device 30 to be distributed registered with the registration information E.

  FIG. 11 is a configuration diagram of the terminal device 30 according to the second embodiment. As illustrated in FIG. 11, the communication unit 35 receives the content C and the content information L transmitted from the information providing apparatus 20 from the communication network 400. The storage unit 33 sequentially stores content C and content information L distributed from the information providing apparatus 20. In other words, the plurality of contents C distributed for each provision instruction P (each time the guidance voice is emitted) and each piece of content information L are accumulated in the storage unit 33 over time.

  The user U appropriately operates the operation unit 32 to give a confirmation instruction for content C received in the past (hereinafter referred to as “history confirmation instruction”) in addition to a reproduction instruction similar to that in the first embodiment. Is possible. The instruction receiving unit 362 receives a reproduction instruction or a history confirmation instruction from the user U.

  When the instruction receiving unit 362 receives the reproduction instruction, the reproduction control unit 363 acquires the content C immediately before the reproduction instruction (that is, the latest content C) from the storage unit 33 and outputs the same as in the first embodiment. 34 is displayed. Therefore, the same effects as those of the first embodiment are realized in the second embodiment.

  On the other hand, when the instruction receiving unit 362 receives the history confirmation instruction, the reproduction control unit 363 displays a selection instruction screen 350 for the user U to instruct the selection of the content C, as illustrated in FIG. Display. The reproduction control unit 363 displays the content information L (L1, L2,...) Corresponding to the plurality of contents C accumulated in the storage unit 33 on the selection instruction screen 350 in chronological order (reception time order). Specifically, a character string (for example, △ boarding announcement, 〇 boarding announcement, □ boarding announcement, ◇ boarding announcement) that can distinguish the guidance voice that the user U has heard in the past is the content information L. Is displayed. FIG. 12 illustrates an image in which the reception time of the content C is arranged in the vicinity of each content information L. As can be understood from the above description, the selection instruction screen 350 can be rephrased as an image indicating the history of reception of the content C in the past.

  The user U can select the content information L of the content C desired to be reproduced from among the plurality of content information L displayed on the selection instruction screen 350 in FIG. 12 by appropriately operating the operation unit 32. It is. The instruction receiving unit 362 receives an instruction to select the content C by the user U. When the instruction receiving unit 362 receives an instruction to select the content C from the user U, the playback control unit 363 causes the output unit 34 to play the content C. That is, the desired content C of the user U among the plurality of contents C received by the terminal device 30 in the past is reproduced.

  As described above, in the second embodiment, the content C selected by the user U is reproduced from among the plurality of contents C sequentially received from the information providing apparatus 20 by the communication unit 35 and stored in the storage unit 33. The Therefore, it is possible to reproduce desired content C corresponding to any of a plurality of guidance sounds that the user has listened to in the past. In the second embodiment, a plurality of contents C received in the past need to be stored in the storage unit 33, but the contents C received by the communication unit 35 are played back immediately before (in front of) the playback instruction. In one embodiment, it is sufficient that the storage unit 33 stores only the latest one content C, and it is not always necessary to store a plurality of past contents C.

<Third Embodiment>
In each of the above-described embodiments, the registration request R including the guidance identification information G extracted from the acoustic signal S2 by the information extraction unit 361 is transmitted to the information providing apparatus 20. However, in actual acoustic communication, the strength is reduced due to the distance between the sound source and the listening point or the attenuation of the sound wave caused by the obstacle, so that the sound emitted from the voice guidance device 10 is transmitted to the terminal device 30 with a significant strength. May not reach. When the intensity of the sound reaching the terminal device 30 from the voice guidance device 10 is insufficient, it is difficult to extract the guidance identification information G. In consideration of the above circumstances, in the third embodiment, when the information extraction unit 361 cannot acquire the guidance identification information G within a predetermined period from the start of sound collection by the sound collection unit 31, a plurality of guides stored in advance are stored. The target is presented to the user U, and guidance identification information G corresponding to the guidance target selected from the user U is acquired.

  FIG. 13 is a configuration diagram of the terminal device 30 according to the third embodiment. As illustrated in FIG. 13, in the terminal device 30 of the third embodiment, a candidate presentation unit 366 is added to the terminal device 30 illustrated in the first embodiment. The storage unit 33 stores a guidance target candidate table TB. As illustrated in FIG. 13, the guidance target candidate table TB includes guidance identification information of the guidance target for each of a plurality of candidates (hereinafter referred to as “guidance target candidates”) where the guidance voice is emitted (guidance target). A data table in which G (G1, G2,...) Is associated.

  FIG. 14 is a flowchart of an operation in which the terminal device 30 generates the registration request R in the third embodiment. The process of FIG. 14 is started by the operation from the user U with respect to the operation unit 32.

  The information extraction unit 361 executes a process (hereinafter referred to as “extraction process”) for extracting the guidance identification information G from the acoustic signal S2 generated by the sound collection unit 31 by the same method as in the first embodiment (SB1). As described above, for example, when the sound emitted from the voice guidance device 10 does not reach the terminal device 30 with a significant intensity, the information extraction unit 361 cannot extract the guidance identification information G. The management unit 364 determines whether the information extraction unit 361 has extracted the guidance identification information G (SB2).

  Specifically, the management unit 364 does not extract the guidance identification information G from the time when the information extraction unit 361 starts the extraction process (or when the user instructs the start of the extraction process). When the time elapses (timeout), the information extraction unit 361 determines that the guidance identification information G cannot be extracted. However, the method by which the management unit 364 determines whether the guidance identification information G can be extracted is not limited to the above example. For example, it is also possible to determine that the guidance identification information G cannot be extracted when the volume or S / N ratio of the acoustic signal S2 generated by the sound collection unit 31 is lower than a predetermined value.

  When the information extraction unit 361 can extract the guidance identification information G (SB2: YES), the management unit 364 includes the guidance identification information G and the terminal identification information T of the terminal device 30 as in the first embodiment. A registration request R is generated (SB3), and the communication unit 35 transmits the registration request R to the information providing apparatus 20 (SB4).

  On the other hand, when the management unit 364 determines that the information extraction unit 361 cannot extract the guidance identification information G (SB2: NO), the candidate presentation unit 366 of FIG. 13 displays a plurality of guidance target candidates (that is, guidance voices are emitted). To the user U (SB5). Specifically, the candidate presentation unit 366 reads a plurality of guidance target candidates included in the guidance target candidate table TB from the storage unit 33 and causes the output unit 34 to display them. For example, the candidate presentation unit 366 displays a candidate selection screen 360 including a plurality of guidance target candidates (vehicle M1, vehicle M2, vehicle M3,...) As illustrated in FIG. The user U selects, for example, a guidance target candidate corresponding to the guidance target (for example, the vehicle M1) where the user U is located among the plurality of guidance target candidates displayed on the candidate selection screen 360 by operating the operation unit 32.

  The management unit 364 searches the guidance target candidate table TB for guidance identification information G of the guidance target candidate selected by the user U, and generates a registration request R including the guidance identification information G and the terminal identification information T (SB6). ). Then, the communication unit 35 transmits the registration request R generated by the management unit 364 to the information providing apparatus 20. That is, the communication unit 35 receives the guidance identification information G acquired by the information extraction unit 361 (identification information acquisition unit) or the guidance target candidate selected by the user U from the plurality of guidance target candidates presented by the candidate presentation unit 366. It functions as a transmission means for transmitting the registration request R including the guidance identification information G corresponding to to the information providing apparatus 20.

  As described above, in the third embodiment, the registration request R including the guidance identification information G acquired at the place where the guidance voice is emitted is transmitted to the information providing apparatus 20, and the terminal The device 30 is registered as a distribution destination of the content C. Therefore, similarly to the first embodiment, it is possible to distribute the content C only to the terminal device 30 located at the place where the guidance voice is emitted.

  In the third embodiment, when the information extraction unit 361 cannot acquire the guidance identification information G, the registration request R including the guidance identification information G of the guidance target candidate selected by the user U among the plurality of guidance target candidates is generated. It is transmitted to the information providing apparatus 20. Therefore, even when the guidance identification information G cannot be acquired due to a lack of guidance voice strength or the like, the terminal device 30 can be registered as the distribution destination of the content C.

<Fourth embodiment>
In 3rd Embodiment, when the information extraction part 361 cannot acquire the guidance identification information G, the registration request | requirement R containing the guidance identification information G of the guidance object candidate which the user U selected among several guidance object candidates was produced | generated. . However, the guidance target candidate where the user U is actually located is not necessarily selected. When the guidance identification information G to be guided that is not actually located by the user U is registered in the registration information E, the content C unrelated to the location where the user U is actually located is distributed to the terminal device 30. It becomes. In consideration of the above circumstances, in the fourth embodiment, position information indicating the position of the terminal device 30 is used for the registration request R.

  FIG. 16 is a configuration diagram of the terminal device 30 according to the fourth embodiment. As illustrated in FIG. 16, the terminal device 30 of the fourth embodiment has a configuration in which a position specifying unit 367 is added to each element of the terminal device 30 illustrated in the third embodiment. The position specifying unit 367 includes a positioning device such as a GPS (Global Positioning System) that measures the position of the terminal device 30, and generates position information X indicating the position of the terminal device 30.

  FIG. 17 is a flowchart of an operation in which the terminal device 30 generates the registration request R in the fourth embodiment. When the extraction process by the information extraction unit 361 starts in response to an instruction from the user U (SB1), the management unit 364 determines whether the information extraction unit 361 has extracted the guidance identification information G (SB2). When the guidance identification information G can be extracted (SB2: YES), the registration request R including the guidance identification information G is generated (SB3) and the registration request R is transmitted (SB4), as in the third embodiment. Executed.

  On the other hand, when the information extraction unit 361 cannot extract the guidance identification information G (SB2: NO), the management unit 364 determines whether or not the position specifying unit 367 can generate the position information X (SC1). When the position information X can be generated (SC1: YES), the management unit 364 specifies the guidance identification information G corresponding to the position information X generated by the position specifying unit 367 (SC2), and the guidance identification information G and the terminal identification A registration request R including information T is generated (SC3). For specifying the guidance identification information G corresponding to the position information X, for example, a data table in which the guidance identification information G is registered for each geographical range or facility can be used. The communication unit 35 transmits the registration request R generated by the management unit 364 in step SC3 to the information providing apparatus 20 (SB4).

  In the configuration in which the position specifying unit 367 includes the GPS as a positioning device, the position information X may not be specified when the terminal device 30 is located in a place where satellite radio waves are difficult to arrive (for example, in a subway station). When the position specifying unit 367 cannot generate the position information X (SC1: NO), as in the third embodiment, presentation of a plurality of guidance target candidates to the user U (SB5) and guidance target candidates selected by the user U The registration request R including the guidance identification information G is generated (SB6), and the registration request R is transmitted from the communication unit 35 (SB4).

  According to the above configuration, when the information extraction unit 361 cannot acquire the guidance identification information G, the registration request R including the guidance identification information G corresponding to the position information X of the terminal device 30 is transmitted to the information providing apparatus 20. . Therefore, there is an advantage that the content C related to the place where the user U is actually located can be provided. If the position information X cannot be generated, the registration request R including the guidance identification information G of the guidance target candidate selected by the user U is transmitted. Therefore, even in a situation where neither the guidance identification information G nor the position information X can be acquired. The content C can be provided to the user U.

  In the above description, the terminal device 30 specifies the guidance identification information G corresponding to the position information X and includes it in the registration request R. However, the registration request R including the position information X is transmitted from the terminal device 30. It is also possible to transmit the information to the information providing apparatus 20 and specify the guidance identification information G corresponding to the position information X by the information providing apparatus 20. That is, the registration request R generated in step SC3 is included as a request for registering the terminal device 30 as a distribution destination of the content C corresponding to the guidance target close to the position indicated by the position information X.

  In the above example, it is assumed for the sake of convenience that the management unit 364 can uniquely identify one piece of guidance identification information G corresponding to the position information X (SC2). When there are a plurality of facilities in the vicinity of the indicated position, a plurality of pieces of guidance identification information G are specified for the position information X (that is, one piece of the guidance identification information G can be uniquely narrowed down from the position information X). Not possible). Therefore, a configuration in which the management unit 364 determines whether one piece of guidance identification information G can be specified from the position information X can be employed. When one piece of guidance identification information G can be specified, the management unit 364 generates a registration request R including the position information X as in the example of the fourth embodiment (SC3). On the other hand, when a plurality of pieces of guidance identification information G are specified, the management unit 364 presents a plurality of guidance target candidates indicated by these pieces of guidance identification information G to the user U (SB5), and the user U selects 1 A registration request R including guidance identification information G of individual guidance target candidates is generated (SB6). That is, when the position information X cannot be generated (SC1: N0) (or instead of this), when one piece of guidance identification information G cannot be specified from the position information X, a plurality of guidance target candidates are used. Presented to person U.

<Modification>
Each aspect illustrated above can be variously modified. Specific modifications are exemplified below. Two or more modes arbitrarily selected from the following examples can be appropriately combined within a range that does not contradict each other.

(1) In each of the above embodiments, the voice guidance of a transportation facility such as a train or a bus is exemplified as a scene where the voice guidance device 10 is used. However, the scene where the voice guidance device 10 is used is exemplified in the above examples. It is not limited. For example, the voice guidance device 10 similar to the above-described embodiments is used for voice guidance on airline flights operated by airlines and voice guidance of various facilities such as exhibition facilities such as museums and museums, accommodation facilities, and commercial facilities. Is done. It is also possible to use the voice guidance device 10 for providing information (for example, evacuation guidance and status notification) when disasters such as fires and earthquakes occur in various facilities.

(2) In the above-described embodiments, the character string obtained by translating the pronunciation content of the guidance voice is exemplified as the content C. However, the content of the content C is not limited to the above examples. For example, a character string representing the pronunciation content of the guidance voice, a synthesized voice generated by voice synthesis using the character string, and a content C representing a synthesized voice generated by voice synthesis applying the translated character string are generated. May be. When the content C represents sound, a sound emitting device such as a speaker or an earphone that emits the sound is used as the output unit 34.

(3) In each of the above-described embodiments, the information providing system 1 is configured by the information providing apparatus 20 and the voice guiding apparatus 10 which are separate from each other. However, the configuration of the voice guiding apparatus 10 is not limited to the above examples. For example, a part or all of the functions of the information providing device 20 can be installed in the voice guidance device 10.

(4) In the third embodiment, when the guidance identification information G is not acquired within a predetermined time from the start of processing by the information extraction unit 361, a plurality of candidates stored in the terminal device 30 are presented (displayed) to the user. ) Was exemplified. In addition to the above examples, for example, when the storage unit 33 is installed in an external device (server) and the guidance identification information G is not acquired by the information extraction unit 361, the information is received from the external device via communication via the communication network 400 A plurality of candidates may be presented (displayed). Moreover, the aspect which shows a some candidate to a user is not limited to a display. For example, a plurality of candidates may be presented to the user by sound synthesis using a character string representing a plurality of candidates and emitting a synthesized voice that pronounces the character string.

(5) In the third embodiment, all the guidance target candidates registered in the guidance target candidate table TB are presented to the user U, but the guidance target candidates in the vicinity of the actual position of the terminal device 30 are selected and used. It is also possible to present it to the person U. For example, the candidate presenting unit 366 presents a plurality of guidance target candidates within a predetermined range including the position of the position information X specified by the position specifying unit 367 to the user. According to the above configuration, since a plurality of candidates within a predetermined range including the position of the terminal device 30 are presented to the user U, the user U can be configured up to candidates irrelevant to the actual position of the terminal device 30. It is possible to reduce the burden on the user U who selects the guidance target candidate.

(6) The configuration of the first embodiment for reproducing the content C instructed by the user U among the content C distributed every time the guidance voice is emitted, and the user U when the guidance identification information G cannot be acquired. The configurations of the third embodiment and the fourth embodiment that transmit the registration request R including the guidance identification information G of the selected guidance target candidate to the information providing apparatus 20 can be established independently of each other. Therefore, the structure which reproduces | regenerates the content C instruct | indicated from the user U among the content C delivered for every sound emission of guidance voice | voice may be abbreviate | omitted from 3rd Embodiment and 4th Embodiment.

(7) In 4th Embodiment, the structure which uses the positional information X which shows the position of the terminal device 30 for the registration request | requirement R was illustrated. When the voice guidance device 10 is used in a transportation facility such as a train or a bus, the position information X of the terminal device 30 changes with time as the transportation facility moves. In consideration of the above circumstances, it is also possible to generate position information X by predicting future movement from the past movement history of the terminal device 30.

(8) In each of the above embodiments, the configuration in which the content C itself is transmitted from the information providing device 20 to the terminal device 30 is illustrated, but the configuration for acquiring the content C by the terminal device 30 is not limited to the above examples. For example, the identification information D of the content C is transmitted from the information providing device 20 to the terminal device 30 (push distribution), and the distribution request for the content C including the identification information D is transmitted from the terminal device 30 to the information providing device 20. May be.

(9) The functions of the terminal device 30 exemplified in the above-described embodiments are realized by the cooperation of the control unit 36 and the program as described above. The program may be provided in a form stored in a computer-readable recording medium and installed in the computer. The recording medium is, for example, a non-transitory recording medium, and an optical recording medium (optical disk) such as a CD-ROM is a good example, but a known arbitrary one such as a semiconductor recording medium or a magnetic recording medium This type of recording medium can be included. Further, the program exemplified above can be provided in the form of distribution via a communication network and installed in a computer.

(10) The present invention can also be specified as an operation method (content management method) of the terminal device 30 according to each of the above-described embodiments. Specifically, in a content management method according to a preferred aspect of the present invention, a computer (including a single system as well as a computer system composed of a plurality of devices separate from each other) is provided from the information providing device 20. The distributed content C is received, the received content C is stored in the storage unit 33, and when the instruction from the user U is received, the content C is played back by the playback device, and when the instruction is not received, the content C C is not regenerated.

DESCRIPTION OF SYMBOLS 1 ... Information provision system, 10 ... Voice guidance apparatus, 11 ... Operation part, 12 ... Control part, 13 ... Memory | storage part, 122 ... Reading part, 124 ... Signal processing part, 1242 ... Modulation process , 1244... Mixing processing unit, 126... Providing instruction unit, 20... Information providing device, 30... Terminal device, 31. ...... Output unit, 35... Communication unit, 36... Control unit, 362 .. instruction receiving unit, 363 .. reproduction control unit, 364 .. management unit, 366 .. candidate presentation unit, 367.

Claims (5)

A terminal device capable of communicating with an information providing device that distributes content related to the guidance voice every time the guidance voice is emitted,
A receiving unit for receiving content distributed from the information providing device;
A storage unit for storing content received by the receiving unit;
An instruction receiving unit for receiving instructions from users;
A terminal device comprising: a reproduction control unit that causes the reproduction device to reproduce the content when the instruction reception unit receives an instruction from a user. The terminal device according to claim 2, wherein, when the instruction receiving unit receives an instruction from a user, the reproduction control unit causes the reproduction device to reproduce the content received by the receiving unit in the immediate vicinity of the instruction. The storage unit stores a plurality of contents sequentially received by the receiving unit,
The instruction receiving unit receives an instruction to select any of the plurality of contents from a user;
The terminal device according to claim 1, wherein the playback control unit causes the playback device to play back the content when the instruction receiving unit receives an instruction to select content from a user. A terminal device capable of communicating with the information providing device that distributes content corresponding to the guidance identification information to the terminal device registered by the registration request including the guidance identification information;
An identification information acquisition unit for acquiring guidance identification information obtainable at a place where the guidance voice is emitted;
A candidate presenting unit that presents a plurality of candidates for a place where the guidance voice is emitted when the identification information obtaining unit cannot obtain the guidance identification information;
A registration request including guidance identification information acquired by the identification information acquisition unit or guidance identification information corresponding to a candidate selected by a user among a plurality of candidates presented by the candidate presentation unit is transmitted to the information providing apparatus. The terminal device according to claim 1, further comprising: a transmission unit. A position specifying unit for specifying the position of the terminal device;
The transmission means, when the identification information acquisition unit cannot acquire the guidance identification information, a registration request for registering the terminal device as a content delivery destination corresponding to a location close to the position specified by the position specification unit The terminal device according to claim 4, wherein the terminal device is transmitted to the information providing device.

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