JP2020038695A - Terminal device, operation method of terminal device, and program - Google Patents

Abstract

To register a terminal device as a distribution destination of content even when the terminal device cannot acquire guide identification information.SOLUTION: A terminal device can communicate with an information providing device that distributes content corresponding to guide identification information and related to a place where guide voice is emitted to a terminal device registered by a registration request including the guide identification information. The terminal device includes: an identification information acquisition unit that acquires guide identification information that can be acquired at a place where the guide voice is emitted; and a transmission unit that transmits a registration request including the guide identification information acquired by the identification information acquisition unit to the information providing device.SELECTED DRAWING: Figure 9

Description

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

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

JP 2002-351905 A

  For example, in a transportation system such as a train or a bus, a guidance voice for guiding a user to information about getting on and off or changing trains is reproduced at any time. If it is possible to provide the user's terminal device with content such as a character string of the pronunciation content of the guidance voice or a translated sentence for each sound emission of the guidance voice, for example, it is difficult to hear the guidance voice or to understand the language of the guidance voice Users such as foreigners can easily understand the contents of the guidance voice, which is convenient. By transmitting to a terminal device identification information that can be obtained at a location where the guidance voice is emitted, content can be provided to the terminal device located at the location. However, when acoustic communication is used to transmit identification information, it is difficult to extract identification information if the intensity of sound reaching the terminal device is insufficient due to the distance between the sound source and the listening point or the attenuation of sound waves due to obstacles. Becomes

  A terminal device according to a preferred aspect of the present invention, for a terminal device registered by a registration request including guidance identification information, corresponds to the guidance identification information and relates to a location where a guidance voice is emitted. A terminal device capable of communicating with an information providing device that distributes content, wherein the identification information acquisition unit acquires guidance identification information that can be acquired at a place where the guidance voice is emitted, and the identification information acquisition unit acquires the guidance identification information. A transmitting unit that transmits a registration request including guidance identification information to the information providing apparatus.

  Further, a terminal device according to a preferred aspect of the present invention is a terminal device that can communicate with an information providing device that distributes a content corresponding to the guide identification information to a terminal device registered by a registration request including the guide identification information. An identification information acquisition unit that acquires guidance identification information that can be acquired at a place where the guidance sound is emitted; and the guidance sound 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 place to be performed to the user, guidance identification information acquired by the identification information acquiring unit, or a candidate selected by the user among a plurality of candidates presented by the candidate presenting unit And a transmission unit for transmitting a registration request including guidance identification information corresponding to the information providing device to the information providing apparatus. In the above aspect, since 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 the content distribution destination by the registration request, It is possible to distribute the content only to the terminal device located at the place where the guidance voice is emitted. In addition, when the identification information acquisition unit cannot acquire the guidance identification information, a plurality of candidates for the location where the guidance sound is emitted are presented to the user, and the guidance corresponding to the candidate selected by the user among the plurality of candidates is provided. Since the registration request including the identification information is transmitted to the information providing device, even when the terminal device cannot acquire the guidance identification information, the terminal device 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 a position of the terminal device, wherein the transmitting unit is configured to determine the position when the identification information obtaining unit cannot obtain the guidance identification information. A registration request for registering the terminal device as a distribution destination of the 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 content distribution destination related to a location close to the position identified by the position identification unit is sent to the information providing device. Since the terminal device is transmitted, even when the terminal device cannot acquire the guidance identification information, the terminal device 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 a position of the terminal device, and the candidate presenting unit includes a plurality of terminals 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 with a configuration in which the plurality of candidates are presented regardless of the actual position of the terminal device In addition, 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 sound is emitted).

  In addition, if all the content distributed for each sound emission of the guidance voice is reproduced by the terminal device, the result is that even the unnecessary content for the user of the terminal device is reproduced, and the processing load of the terminal device for reproducing the content is reduced. The problem of increase may occur. In order to solve the above problems, a terminal device of the present invention is a terminal device capable of communicating with an information providing device that distributes a content related to a guidance voice every time a guidance voice is emitted, A receiving unit that receives the content distributed from the storage unit, a storage unit that stores the content received by the receiving unit, an instruction receiving unit that receives an instruction from the user, and the instruction receiving unit receives an instruction from the user. A reproduction control unit for causing the reproduction device to reproduce the content in the case. 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, and the content is reproduced from the user. If no instruction is given, the content is not reproduced. Therefore, it is possible to selectively present to the user the desired content of the user among the plurality of contents sequentially distributed in conjunction with the sound emission of the guidance voice. Further, it is possible to reduce the processing load required for the reproduction device to reproduce the content, as compared with a configuration in which all the content received by the receiving unit is reproduced 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 transmits, to the reproduction device, the content received by the reception unit immediately before the instruction. Play it. In the above aspect, since the content received by the receiving unit immediately before the instruction from the user is reproduced, the user can make a temporal correspondence between the guide voice heard by the user and the content reproduced from the reproduction device. There is an advantage that it is easy to grasp. For example, when the user desires to play back the content as a result of listening to the guidance voice, the instruction 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 one of the plurality of contents. When the instruction is received from a user, the reproduction control unit causes the reproduction device to reproduce the content when the instruction reception unit receives a content selection instruction from the user. In the above aspect, the content selected by the user is reproduced from the plurality of contents sequentially received by the receiving unit from the information providing device and stored in the storage unit. Therefore, it is possible to reproduce a desired content corresponding to any of the plurality of guidance voices that the user has listened to in the past.

  In order to solve the above problems, an information providing system according to the present invention includes a sound emitting device that sequentially emits a guidance sound, and a content related to the guidance sound every time the guidance sound is emitted by the sound emitting unit. An information providing system that distributes an information providing device and a terminal device that can communicate 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 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.

FIG. 1 is a configuration diagram of an information providing system according to a first embodiment of the present invention. It is a lineblock diagram of a voice guidance device. FIG. 3 is a configuration diagram of a signal combining unit. It is a block diagram of a terminal device. FIG. 2 is a configuration diagram of an information providing device. FIG. 9 is an explanatory diagram of a content reproduction instruction. FIG. 9 is an explanatory diagram of an example of content reproduction. FIG. 8 is an explanatory diagram of a temporal relationship between sound emission of a guidance voice and a provision instruction and a reproduction instruction. It is an explanatory view of an operation of an information providing system. It is a lineblock diagram of an information service device of a 2nd embodiment. It is a lineblock diagram of a terminal unit of a 2nd embodiment. FIG. 9 is an explanatory diagram of a content selection instruction. It is a lineblock diagram of a terminal unit of a 3rd embodiment. FIG. 4 is an explanatory diagram of an operation of the terminal device. It is explanatory drawing of the selection instruction of a candidate. It is a lineblock diagram of a terminal unit of a 4th embodiment. FIG. 4 is an explanatory diagram of an operation of the terminal device.

<First embodiment>
FIG. 1 is a configuration diagram of an information providing system 1 according to the first embodiment. The information providing system 1 according to the first embodiment is a computer system that provides information to a user U of a transportation system 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 and the like. The information providing device 20 is, for example, a server (for example, a web server) connected to the communication network 400. The user U gets on the vehicle M while carrying the terminal device 30. The terminal device 30 is a portable information processing device such as a mobile phone and a smartphone. Although a plurality of users U in the vehicle M can actually use the service of the information providing system 1, the following description focuses on one terminal device 30 for convenience.

  The voice guidance device 10 emits a voice for guidance related to transportation (hereinafter, referred to as “guidance voice”) to the user U in the vehicle M. The guidance voice is voice for guiding, for example, getting on and off of a transportation facility (name of a stop point such as a train station or a bus stop), a transfer, a fare, an operation status (for example, whether or not there is a delay), and a nearby sightseeing spot. The guidance voice selected by the guide OP managing the voice guidance device 10 according to the operation status of the vehicle M and the like is emitted from the voice guidance device 10.

  The voice guidance device 10 transmits the provision instruction P of the content C related to the guidance voice to the information providing device 20 in parallel with the emission of the guidance voice. The information providing device 20 transmits the content C specified by the providing instruction P to the terminal device 30. The content C is a sound or an image (for example, a still image, a moving image, or a character string) related to the guidance sound. For example, various information such as 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 voice is provided to the terminal device 30 as the content C. In the first embodiment, it is assumed that guidance regarding a plurality of guidance targets is provided. The guidance target means a guidance object, and is typically a place where a guidance voice is emitted. Although FIG. 1 illustrates the vehicle M of the transportation as an example of the guidance target, the voice guidance device 10 is actually installed for each of the plurality of guidance targets (for example, for each vehicle M of the same type of transportation). On the other hand, the information providing device 20 is shared across a plurality of guidance targets.

  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 plural 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 identification information D of the content C related to the guidance voice is associated with the guidance signal AG corresponding to one type of guidance voice. Further, the storage unit 13 stores identification information G (hereinafter, referred to as “guidance identification information”) G unique to the guidance target (for example, the vehicle M) in which the voice guidance device 10 is installed.

  The operation unit 11 is an input device operated by the guide OP. For example, the guide OP can select an arbitrary one of the plurality of guide signals AG (guide voice) from 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. When the control unit 12 executes the program stored in the storage unit 13, each function (the reading unit 122, the signal synthesizing unit 124, and the providing 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 when the guide OP selects the guidance signal AG by operating the operation unit 11. On the other hand, it notifies the provision instruction unit 126 of the identification information D and the guidance identification information G associated with the guidance signal AG.

  The signal synthesizing unit 124 generates the reproduction signal S1 by superimposing the guide identification information G on the guide signal AG. A known method can be arbitrarily adopted for superimposing the guide identification information G on the guide signal AG (acoustic watermark). For example, a method disclosed in JP-A-2014-187686 is preferable.

  FIG. 3 is a block diagram illustrating a configuration of the signal combining 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 modulated signal SG within a specific frequency band by frequency-modulating a carrier such as a sine wave having a predetermined frequency with the guide identification information G. The frequency band of the modulated signal SG is a frequency band in which sound emission by the sound emitting unit 14 and sound collection by the terminal device 30 are possible, and the sound (speech or musical sound) that the user U listens to in a normal environment. It is included in a range of a frequency band (for example, 18 kHz or more and 20 kHz or less) which exceeds a frequency band (for example, about 16 kHz or less in an audible range). The mixing processing unit 1244 generates the reproduction signal S1 by mixing (typically adding) the guide signal AG supplied from the reading unit 122 and the modulation signal SG generated by the modulation processing unit 1242. 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 WO 2010/016589, spread identification of guidance identification information G using a spreading code and frequency conversion using a carrier wave of a predetermined frequency are sequentially performed to provide guidance identification. It is also possible to generate a modulated 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 synthesizing unit 124. That is, the sound emitting unit 14 emits a sound including the guidance voice and the acoustic component (modulation signal SG) of the guidance identification information G. The illustration of a D / A converter for converting the reproduction signal S1 from digital to analog is omitted 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 for instructing the information providing apparatus 20 to distribute the content C related to the guidance sound emitted from the sound emitting unit 14. The provision instruction P includes identification information D of the content C and guidance identification information G of the vehicle M.

  The communication unit 15 is a communication device that communicates with the information providing device 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 device 20 via the communication network 400. As understood from the above description, the sound emission of the guidance sound by the sound emitting unit 14 and the transmission of the provision instruction P to the information providing apparatus 20 are executed in parallel. That is, the provision instruction P is transmitted from the voice guidance device 10 to the information provision device 20 every time the guidance sound 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 audio device (microphone) that collects surrounding sounds, and collects the sound emitted from the sound emission unit 14 of the voice guidance device 10 to generate an acoustic signal S2. The sound signal S2 contains the sound component of the guidance identification information G. An A / D converter for converting the acoustic signal S2 generated by the sound pickup unit 31 from analog to digital is omitted for convenience. The output unit 34 outputs various information. The output unit 34 of the first embodiment is a display device (for example, a liquid crystal display panel or the like) that displays a character string or an image. 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 of the terminal device 30 (the information extraction unit 361, the instruction reception unit 362, the reproduction control unit 363, and the management unit 364) 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 extracting unit 361 extracts the guide identification information G by emphasizing and demodulating (frequency demodulating), for example, a band component of the frequency band including the guide identification information G in the audio signal S2 with 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 the sound as 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 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. The guidance identification information G of any one guidance target can be limitedly received at a place where the guidance voice of the guidance target is emitted (within a range where the sound emitted by the sound emitting unit 14 reaches with a significant intensity). It is. Therefore, it is estimated that the terminal device 30 that has transmitted the registration request R including the guidance identification information G of the specific guidance target is located at a place where the guidance voice of the guidance target is emitted (for example, in the vehicle M).

  The communication unit 35 is a communication device that communicates with the information providing device 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 device 20, and receives the content C transmitted from the information providing device 20 from the communication network 400.

  As described above, the voice guidance device 10 transmits the provision instruction P to the information providing device 20 every time the guidance voice is emitted, and the information provision device 20 transmits the terminal device every time the provision instruction P is received from the voice guidance device 10. 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 sound is emitted. The content C that the communication unit 35 sequentially receives from the information providing device 20 is stored in the storage unit 33.

  FIG. 5 is a configuration diagram of the information providing apparatus 20. The information providing device 20 is, for example, a server device (typically, a web server) connected to a 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 of the first embodiment receives the provision instruction P transmitted by the voice guidance device 10 and the registration request R transmitted by 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 a plurality of contents C (C11, C12,...) Has identification information D (D11, D12,...) Of the content C and a guidance voice corresponding to the content C. Is added to the guidance identification information G (G1, G2,...) Of the guidance target (vehicle M) from which is emitted.

  The registration information E specifies the terminal device 30 to which the content C related to the guidance voice of each guidance target is provided. Specifically, as shown in FIG. 5, the registration information E is provided with guidance identification information G (G1, G2,...) Unique to the guidance target and content C related to the guidance voice of the guidance target. 4 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 is configured by 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 determines, for the guidance identification information G specified by the registration request R among the plurality of guidance identification information G included in the registration information E, the terminal identification information T specified by the registration request R. Correspond. That is, the terminal device 30 of the terminal identification information T specified by 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 transmits the content C of the identification information D specified by the provision instruction P received from the voice guidance device 10 to each terminal registered in the registration information E for the guidance identification information G specified by the provision instruction P. The content 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 the specific guidance target is presumed to be located in a place where the guidance voice of the guidance target is emitted (for example, in the vehicle M). . Therefore, the content C corresponding to the guidance voice of the guidance target is provided to the terminal device 30 located at the location 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 delivered from the information providing device 20 to the terminal device 30 (push delivery) every time the guidance voice is emitted. With the above configuration, if all the content C distributed for each sound emission of the guidance voice is reproduced by the terminal device 30, the result is that even the content C unnecessary for the user U of the terminal device 30 is reproduced. Also, there is a problem that the processing load on the terminal device 30 increases. In consideration of the above circumstances, the first embodiment employs a configuration in which the content C is reproduced when the user U instructs it, while the content C is not reproduced when the user U does not instruct it.

  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 reproduction instruction screen 340 including a confirmation button 342 is displayed on the output unit 34, and the instruction reception unit 362 receives an operation from the user U on the confirmation button 342 as a reproduction instruction. The user U listens to the guidance sound emitted from the sound emitting unit 14 and gives a reproduction instruction when guessing that the guidance sound is related to the user, while determining that the guidance sound is irrelevant to the user. If it is guessed, no reproduction instruction is given.

  When the instruction receiving unit 362 receives a reproduction instruction from the user U, the reproduction control unit 363 causes the output unit 34 to display the content C received from the information providing device 20. For example, when the instruction receiving unit 362 receives a reproduction instruction of the content C from the user U by an operation on the confirmation button 342 of the reproduction instruction screen 340 illustrated in FIG. The communication unit 35 causes the output unit 34 to display the content C received from the information providing device 20 immediately before (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 reproduction of the content C. FIG. 7 illustrates a situation in which the content C corresponding to the guidance sound “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 emission of the guidance voice, the provision instruction P, and the reproduction instruction. Each time the guidance sound is emitted, the provision instruction P is transmitted from the voice guidance device 10 to the information providing device 20, and is used for transmission of the provision instruction P, selection of the content C, and distribution to the terminal device 30 as illustrated in FIG. 8. The terminal device 30 actually receives the content C at a point in time when the transmission of the provision instruction P is delayed by a necessary time. In the first embodiment, since the content C received immediately before the reproduction instruction from the user U is reproduced, it is necessary that the terminal device 30 has received the content C at the time of the reproduction instruction. In consideration of the above circumstances, the user U who has listened to the guidance voice determines whether or not the information is necessary for himself / herself, and at the time when the reproduction instruction can be given to the operation unit 32, the guidance by the terminal device 30 is given. As the reception of the voice content C has already been completed, the transmission of the provision instruction P by the voice guidance device 10 is performed without delay from the start of the release of the guide voice (for example, the time immediately after the start of the release of the guide voice). Or before sound emission). FIG. 8 illustrates a case in which the provision instruction P is transmitted substantially simultaneously with the start of the guidance sound emission.

<Overall operation>
FIG. 9 is an explanatory diagram of the overall operation of the information providing system 1. When the guide signal AG is selected by the guide OP, the reproduction of the guidance voice is started by the supply of the reproduction signal S1 to the sound emitting unit 14 (SA1), and the providing instruction unit 126 includes the identification information D and the guidance identification information. An instruction P for providing the content C including the G is transmitted from the communication unit 15 to the information providing apparatus 20 (SA2). The information providing device 20 selects the content C of the identification information D specified by the providing instruction P received from the voice guidance device 10 (SA3). Then, the information providing device 20 transmits the content C selected in step SA3 to each terminal device 30 registered in the registration information E for the guidance identification information G specified by the providing 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 reproduction control unit 363 of the terminal device 30 determines whether or not the instruction receiving unit 362 has received a reproduction instruction from the user U, for example, at predetermined time intervals (SA7). When the instruction receiving unit 362 receives the reproduction instruction (SA7: YES), the reproduction control unit 363 causes the output unit 34 to reproduce the content C received immediately before the reproduction 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, 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 sound is emitted, the instruction receiving unit 362 determines whether the user U When the reproduction instruction of the content C is received from the user U, the content C is reproduced, and when there is no reproduction instruction from the user U, the content C is not reproduced. Therefore, it is possible to selectively reproduce the desired content of the user U from among the plurality of contents C sequentially distributed in synchronization with the emission of the guidance voice. Further, it is possible to reduce the processing load required for the output unit 34 to reproduce the content C, 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 piece of content C received by the terminal device 30 immediately before the playback instruction from the user U is played back. However, in an actual use scene, the content C received by the terminal device 30 in the past is checked. 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 user U instructs a plurality of contents C received in the past by the user U for each sound emission of the guidance voice. Selectively play according to.

  FIG. 10 is a configuration diagram of the information providing device 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 (e.g., a character string of a headline) representing a schematic content of the content C. Upon receiving the provision instruction P transmitted from the voice guidance device 10 every time the guidance voice is emitted as in the first embodiment, the information providing device 20 determines the content C specified by the identification information D of the provision instruction P and the content C The content information L related to the content C is transmitted to the distribution target terminal device 30 registered in the registration information E.

  FIG. 11 is a configuration diagram of the terminal device 30 of 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 device 20 from the communication network 400. In the storage unit 33, the content C and the content information L distributed from the information providing device 20 are sequentially stored. That is, the plurality of contents C distributed for each provision instruction P (each sound of the guidance sound) and the respective pieces of content information L are accumulated in the storage unit 33 as time passes.

  By appropriately operating the operation unit 32, the user U gives an instruction to confirm the content C received in the past (hereinafter, referred to as a “history confirmation instruction”) in addition to the reproduction instruction similar to the first embodiment. It is possible to 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 in the first embodiment are realized in the second embodiment.

  On the other hand, when the instruction receiving unit 362 receives the history check instruction, the reproduction control unit 363 displays a selection instruction screen 350 for instructing the user U to select the content C on the output unit 34 as illustrated in FIG. Display. The reproduction control unit 363 causes the selection instruction screen 350 to display the content information L (L1, L2,...) Corresponding to the plurality of contents C stored in the storage unit 33 in chronological order (reception time order). Specifically, a character string (for example, an announcement of boarding △, an announcement of boarding 〇, an announcement of boarding □, an announcement of boarding ◇) that can determine the guidance voice that the user U has heard in the past is used as the content information L. Is displayed. FIG. 12 illustrates an image in which the reception time of the content C is arranged near each piece of content information L. As understood from the above description, the selection instruction screen 350 can be referred to as an image indicating a history of the reception of the content C in the past.

  By appropriately operating the operation unit 32, the user U can select the content information L of the content C desired to be reproduced from the plurality of pieces of content information L displayed on the selection instruction screen 350 in FIG. 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 reproduction control unit 363 causes the output unit 34 to reproduce 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 among the plurality of contents C sequentially received from the information providing device 20 by the communication unit 35 and stored in the storage unit 33 is reproduced. You. Therefore, it is possible to reproduce the desired content C corresponding to any of the plurality of guidance voices that the user has listened to in the past. In the second embodiment, it is necessary to store a plurality of contents C received in the past in the storage unit 33. However, in the second embodiment, the communication unit 35 reproduces the content C received immediately before (immediately before) the reproduction 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 information extracting unit 361 has transmitted the registration request R including the guidance identification information G extracted from the audio signal S2 to the information providing apparatus 20. However, in actual acoustic communication, since the intensity decreases due to the distance between the sound source and the listening point and the attenuation of sound waves due to obstacles, the sound emitted from the voice guidance device 10 is transmitted to the terminal device 30 with a significant intensity. May not reach. If 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, if the information extraction unit 361 cannot acquire the guidance identification information G within a predetermined period from the start of the sound collection by the sound collection unit 31, a plurality of pre-stored guidances The target is presented to the user U, and guidance identification information G corresponding to the guidance target selected from the user U is obtained.

  FIG. 13 is a configuration diagram of the terminal device 30 of 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, for each of a plurality of candidates (hereinafter, referred to as “guidance target candidates”) of a place (guidance target) where the guidance sound is emitted, guidance identification information of the guidance target G (G1, G2, ...) is a data table associated with the data table.

  FIG. 14 is a flowchart of an operation in which the terminal device 30 generates a registration request R in the third embodiment. The processing in FIG. 14 is started in response to an operation performed by the user U on the operation unit 32.

  The information extraction unit 361 executes a process of extracting the guidance identification information G from the acoustic signal S2 generated by the sound collection unit 31 (hereinafter, referred to as "extraction process") 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 performs a predetermined operation without extracting the guidance identification information G from the time when the information extraction unit 361 starts the extraction process (or the time when the user instructs the start of the extraction process). When the time has elapsed (timed out), the information extracting unit 361 determines that the guidance identification information G cannot be extracted. However, the method by which the management unit 364 determines whether or not the guidance identification information G can be extracted is not limited to the above example. For example, it is possible to determine that the guidance identification information G cannot be extracted when the volume or the S / N ratio of the acoustic signal S2 generated by the sound pickup 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. The communication unit 35 generates a registration request R (SB3), and transmits the registration request R to the information providing device 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 in FIG. Is presented to the user U (SB5). Specifically, the candidate presenting 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 the plurality of guidance target candidates. For example, as illustrated in FIG. 15, the candidate presenting unit 366 displays a candidate selection screen 360 including a plurality of guidance target candidates (vehicle M1, vehicle M2, vehicle M3,...). 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 from 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 device 20. That is, the communication unit 35 transmits 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. Functions as a transmitting unit that transmits a registration request R including the guidance identification information G corresponding to the information providing device 20 to the information providing device 20.

  As described above, in the third embodiment, the registration request R including the guidance identification information G obtained at the place where the guidance sound is emitted is transmitted to the information providing apparatus 20, and the registration request R causes 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 extracting 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. The information is transmitted to the information providing device 20. Therefore, even when the guidance identification information G cannot be acquired due to a factor such as insufficient guidance voice strength, the terminal device 30 can be registered as the distribution destination of the content C.

<Fourth embodiment>
In the third embodiment, when the information extracting 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. . However, the guidance target candidate in which the user U is actually located is not always selected. When the guidance identification information G of the guidance target to which the user U is not actually located is registered in the registration information E, the content C irrelevant to the location where the user U is actually located is distributed to the terminal device 30. Becomes In view of the above circumstances, in the fourth embodiment, the 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 a 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 successfully extracted the guidance identification information G (SB2). When the guide identification information G can be extracted (SB2: YES), the generation of the registration request R including the guide identification information G (SB3) and the transmission of the registration request R (SB4) are performed as in the third embodiment. Be executed.

  On the other hand, when the information extracting unit 361 cannot extract the guidance identification information G (SB2: NO), the management unit 364 determines whether or not the position specifying unit 367 is in a state where the position information X can be generated (SC1). When the position information X can be generated (SC1: YES), the management unit 364 specifies the guide identification information G corresponding to the position information X generated by the position specifying unit 367 (SC2), and associates the guide identification information G with the terminal identification. A registration request R including the 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 area 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 device 20 (SB4).

  In a 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 do not easily arrive (for example, in a subway station yard). When the position specifying unit 367 cannot generate the position information X (SC1: NO), a plurality of guidance target candidates are presented to the user U (SB5) and the guidance target candidate selected by the user U, as in the third embodiment. Is generated (SB6) including the guide identification information G, and the registration request R is transmitted from the communication unit 35 (SB4).

  According to the above configuration, when the information extracting 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 device 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 location 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. It is possible to provide the content C to the user U.

  In the above description, the configuration in which the guide identification information G corresponding to the position information X is specified by the terminal device 30 and included in the registration request R has been exemplified, but the registration request R including the position information X is transmitted from the terminal device 30 to the terminal device 30. It is also possible to transmit to the information providing device 20 and specify the guidance identification information G corresponding to the position information X in the information providing device 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 near the position indicated by the position information X.

  Further, in the above-described example, a case where the management unit 364 can uniquely identify one piece of guidance identification information G corresponding to the position information X (SC2) is conveniently assumed. When a plurality of facilities exist near the indicated position, a plurality of pieces of guidance identification information G are specified for the position information X (that is, one piece of guidance identification information G is uniquely narrowed from the position information X). No) There is a possibility. 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 may be adopted. 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 selects the one selected by the user U. A registration request R including guidance identification information G of the individual guidance target candidates is generated (SB6). That is, in addition to (or instead of) the case where the position information X cannot be generated (SC1: N0), if one piece of guidance identification information G cannot be specified from the position information X, a plurality of guidance target candidates are used. Is presented to the person U.

<Modification>
Each embodiment exemplified above can be variously modified. Specific modifications will be described below. Two or more aspects arbitrarily selected from the following examples can be appropriately combined within a mutually consistent range.

(1) In each of the above embodiments, the voice guidance of a transportation system 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 described in the above examples. Not limited. For example, the voice guidance device 10 similar to the above-described embodiments is used for voice guidance on flights operated by an airline and various facilities such as exhibition facilities such as art museums and museums, accommodation facilities, and commercial facilities. Is done. Further, the voice guidance device 10 can be used for providing information (for example, evacuation guidance and status notification) when a disaster such as a fire or an earthquake occurs in various facilities.

(2) In each of the embodiments described above, the character string obtained by translating the pronunciation content of the guidance voice is illustrated as the content C, but the content of the content C is not limited to the above example. For example, a content string representing a character string representing the pronunciation content of the guidance voice, a synthesized voice generated by speech synthesis using the character string, and a synthesized voice generated by speech synthesis using the translated character string is 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 device 20 and the voice guidance device 10 that are separate from each other, but the configuration of the voice guidance device 10 is not limited to the above examples. For example, part or all of the functions of the information providing device 20 can be mounted on the voice guidance device 10.

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

(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 near the actual position of the terminal device 30 are selected and used. It is also possible to present to person U. For example, the candidate presenting unit 366 presents to the user 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. 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, even candidates irrelevant to the actual position of the terminal device 30 are configured to the user U. It is possible to reduce the burden on the user U to select the guidance target candidate, as compared to

(6) The configuration of the first embodiment for reproducing the content C instructed by the user U among the content C distributed for each sound emission of the guidance voice, and when the guidance identification information G cannot be obtained, the user U The configuration of the third embodiment and the fourth embodiment in which the registration request R including the guidance identification information G of the selected guidance target candidate is transmitted to the information providing device 20 can be established independently of each other. Therefore, the configuration for reproducing the content C specified by the user U among the content C distributed for each sound emission of the guidance voice can be omitted from the third embodiment and the fourth embodiment.

(7) In the fourth embodiment, the configuration in which the position information X indicating the position of the terminal device 30 is used for the registration request R has been exemplified. When the voice guidance device 10 is used in a transportation such as a train or a bus, the position information X of the terminal device 30 changes with time as the transportation moves. In consideration of the above circumstances, it is also possible to predict the future movement from the past movement history of the terminal device 30 and generate the position information X.

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

(9) The function of the terminal device 30 exemplified in each of the above-described embodiments is realized by the cooperation of the control unit 36 and the program as described above. The program may be provided in a form stored on a computer-readable recording medium and installed on 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, and a known arbitrary recording medium such as a semiconductor recording medium or a magnetic recording medium is used. In the form of a recording medium. The programs exemplified above can be provided in a 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. More specifically, in a content management method according to a preferred aspect of the present invention, a computer (including a computer system including a single device and a plurality of devices separate from each other) is transmitted from the information providing device 20 to the computer. 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 reproduced by the reproducing apparatus. When the instruction is not received, the content is received. Do not play C.

DESCRIPTION OF SYMBOLS 1 ... Information provision system, 10 ... Voice guidance device, 11 ... Operation part, 12 ... Control part, 13 ... Storage part, 122 ... Readout part, 124 ... Signal processing part, 1242 ... Modulation processing Unit 1244 mixing processing unit 126 providing instruction unit 20 information providing device 30 terminal device 31 sound collecting unit 32 operating unit 33 storage unit 34 Output unit 35 Communication unit 36 Control unit 362 Instruction reception unit 363 Reproduction control unit 364 Management unit 366 Candidate presentation unit 367 Position specifying unit

Claims (8)

For a terminal device registered by a registration request including guidance identification information, a terminal that can communicate with an information providing device that corresponds to the guidance identification information and distributes a content related to a location where a guidance voice is emitted. A device,
An identification information acquisition unit that acquires guidance identification information that can be acquired at a place where the guidance voice is emitted,
A transmission unit that transmits a registration request including the guidance identification information acquired by the identification information acquisition unit to the information providing device. When the identification information acquisition unit cannot acquire the guidance identification information, the candidate information presentation unit includes a candidate presentation unit that presents a user with a plurality of candidates for a place where the guidance sound is emitted,
The transmission unit transmits the registration request including the guidance identification information acquired by the identification information acquisition unit or the guidance identification information corresponding to a candidate selected by a user among a plurality of candidates presented by the candidate presentation unit. The terminal device according to claim 1, wherein the terminal device transmits the terminal device to a providing device. A position specifying unit that specifies the position of the terminal device,
A registration request for registering the terminal device as a distribution destination of a content corresponding to a location close to the position specified by the position specifying unit when the identification information obtaining unit cannot obtain the guidance identification information; The terminal device according to claim 1 or 2, wherein the terminal device transmits to the information providing device. A terminal device capable of communicating with the information providing device that distributes a content related to the guidance voice for each sound emission of the guidance voice,
A receiving unit that receives the content distributed from the information providing device,
A storage unit for storing the content received by the receiving unit,
An instruction receiving unit for receiving an instruction from a user,
The terminal device according to any one of claims 1 to 3, further comprising: a playback control unit that causes the playback device to play the content when the instruction reception unit receives an instruction from a user. The terminal device according to claim 4, 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 immediately before 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 4, wherein the reproduction control unit causes the reproduction device to reproduce the content when the instruction reception unit receives a content selection instruction from a user. For a terminal device registered by a registration request including guidance identification information, a terminal that can communicate with an information providing device that corresponds to the guidance identification information and distributes a content related to a location where a guidance voice is emitted. The device
Acquiring guidance identification information that can be obtained at a place where the guidance voice is emitted,
An operation method of a terminal device that transmits a registration request including the acquired guidance identification information to the information providing device. For a terminal device registered by a registration request including guidance identification information, a terminal that can communicate with an information providing device that corresponds to the guidance identification information and distributes a content related to a location where a guidance voice is emitted. Equipment computer,
An identification information acquisition unit that acquires guidance identification information that can be acquired at a place where the guidance voice is emitted, and
A program that functions as a transmission unit that transmits a registration request including guidance identification information acquired by the identification information acquisition unit to the information providing device.

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