JP6565444B2 - Terminal device and program - Google Patents

Description

  The present invention relates to a technique for providing information to a user of a terminal device.

  Various techniques for presenting related information related to guidance voice to users of terminal devices have been proposed. For example, Patent Document 1 discloses a technique in which sound including sound data and transmission data is emitted from a transmission device, and transmission data is extracted by demodulation of sound collected by a microphone in the reception device.

JP, 2014-187686, A

  If the technology disclosed in Patent Document 1 is used to emit information including transmission data in the guidance voice of transportation facilities such as trains and buses, and the information specified by the transmission data can be presented to the user at the terminal device on the receiving side Convenient. However, there is a problem that it is troublesome for the user if all the related information to be guided to the user who can hear the guidance voice is presented. In view of the above circumstances, an object of the present invention is to avoid annoyance of a user who is presented with information related to guidance voice.

  In order to solve the above-described problems, a terminal device according to the present invention acquires an identification information acquisition unit that acquires identification information that is transmitted together with the emission of a guidance voice, and terminal status information that indicates the usage status of the device itself. Presents the status information acquisition unit, the terminal status determination unit that determines whether or not the related information that is related to the guidance voice and specified by the identification information is to be presented according to the terminal status information, and the related information And an information presenting unit that presents the relevant information to the user when the terminal status judging unit judges that the situation should be. In the above configuration, whether or not it is necessary to present related information to the user according to the terminal status information indicating the usage status of the terminal device, and the related information is determined when it is determined that the related information should be presented. Is presented to the user. Therefore, it is possible to reduce the troublesomeness of the user as compared with the configuration in which the related information of the guidance voice is presented to the user every time the guidance voice is emitted.

  In a preferred aspect of the present invention, the status information acquisition unit acquires terminal status information indicating whether or not the earphone is connected to the terminal device as a usage status, and the terminal status determination unit indicates the status of the earphone connected to the terminal status. When the information indicates, it is determined that the related information needs to be presented. In the above configuration, it is determined that it is necessary to present related information in a situation where the earphone is connected to the terminal device, using terminal status information indicating whether or not the earphone is connected as a usage status. Therefore, in a situation where it is estimated that it is difficult for the user to wear the earphone on the ear and hear the guidance voice, the related information of the guidance voice is presented to the user, while the earphone is not connected (for example, the user Compared with the configuration in which the related information of the guidance voice is presented to the user until the possibility of listening to the guidance voice is high), it is possible to reduce the troublesomeness of the user.

  In a preferred aspect of the present invention, a playback control unit that plays back content including sound is provided, and the status information acquisition unit acquires terminal status information indicating whether or not the content is played by the playback control unit as usage status, and the terminal The situation determination unit determines that the related information needs to be presented when the terminal situation information indicates the situation in which the content is being reproduced. In the above configuration, it is determined that presentation of related information is necessary when the playback control unit is playing back content using terminal status information indicating whether or not content including sound is being used as a usage status. . Therefore, in a situation where it is estimated that the user is watching content and it is difficult to listen to the guidance voice, the related information of the guidance voice is presented to the user while the content is not played back (for example, the user guides the guidance voice). Compared with the configuration in which the related information of the guidance voice is presented to the user until the possibility of listening to the voice is high), it is possible to reduce the troublesomeness of the user.

  In a preferred aspect of the present invention, the status information acquisition unit acquires terminal status information indicating a noise level around the terminal device as a usage status, and the terminal status determination unit has a noise level indicated by the terminal status information. If the threshold value is exceeded, it is determined that presentation of related information is necessary. With the configuration described above, it is determined that it is necessary to present related information when the noise level exceeds a threshold value using terminal status information indicating the level of noise around the terminal device as the usage status. Therefore, in a situation where the level of noise is high (for example, a situation where there is noise that hinders listening to the guidance voice), the related information of the guidance voice is presented to the user, while the noise level causes the guidance voice to be heard. Compared with the configuration in which the related information of the guidance voice is presented to the user even when it is not so great as to interfere, it is possible to reduce the troublesomeness of the user.

  In a preferred aspect of the present invention, when the terminal status determination unit determines that the relevant information should be presented, the related information specified by the identification information is transmitted to the distribution device while the relevant information is presented. When the terminal status determination unit determines that the situation is not to be determined, the terminal status determination unit includes a transmission processing unit that does not transmit the request, and a reception processing unit that receives related information transmitted in response to the request from the distribution device. The related information received by the reception processing unit is presented to the user. In the above configuration, whether or not to send a request for related information to the distribution apparatus is determined based on a determination result of whether or not the related information is to be presented. That is, when it is determined that the relevant information is to be presented, a request for the related information is transmitted. On the other hand, when it is determined that the relevant information is not to be presented, the transmission of the request is omitted. Therefore, compared to the configuration in which the related information distribution request is transmitted to the distribution device until it is determined that the presentation of the related information is unnecessary based on the usage status, the load on the terminal device and between the terminal device and the distribution device are There is an advantage that the amount of communication is reduced.

  In a preferred aspect of the present invention, the identification information acquisition unit extracts the identification information by analyzing an acoustic signal of the sound supplied from a sound collection device that collects sound including the guidance voice and the acoustic component of the identification information. To do. In the above configuration, the identification information is provided to the terminal device together with the guidance voice by acoustic communication using sound as a transmission medium. That is, the equipment for emitting the guidance voice is also used for transmitting the identification information. Therefore, there is an advantage that the configuration for providing the identification information to the terminal device is simplified compared to the configuration in which the identification information is transmitted to the terminal device by a method different from the sound emission of the guidance voice.

  In a preferred aspect of the present invention, the identification information acquisition unit extracts the identification information by analyzing the acoustic signal and presents the related information when the terminal status determination unit determines that the related information should be presented. If the terminal status determining unit determines that the situation is not to be analyzed, the analysis is not performed. In the above configuration, whether or not to extract identification information by analyzing an acoustic signal is determined by a determination result of whether or not related information is to be presented. That is, the identification information is extracted when it is determined that the relevant information is to be presented, while the analysis of the acoustic signal is omitted when it is determined that the relevant information is not presented. Therefore, there is an advantage that the load on the terminal device is reduced as compared with the configuration in which the identification information is extracted until it is determined that the presentation of the related information is unnecessary according to the usage situation.

  In a preferred aspect of the present invention, an importance determination unit that acquires importance of related information and determines whether the importance is high or low is provided, and the information determination unit determines that the importance is low. If the terminal status determination unit determines that the relevant information is to be presented, the related information is presented to the user. On the other hand, if the terminal status judgment unit determines that the relevant information is not to be presented, the related information When the importance determination unit determines that the importance is high, the related information is presented to the user regardless of the usage status indicated by the terminal status information. With the above configuration, when the importance is high, related information is presented to the user regardless of the usage status indicated by the terminal status information, so the user can overlook important related information such as disaster occurrence and emergency evacuation Can be reduced. On the other hand, since the presentation / non-presentation of related information is controlled according to the usage status information when the importance is low, it is compared with the configuration in which the related information of the guidance voice is presented to the user every time the guidance voice is emitted. Thus, it is possible to reduce the troublesomeness of the user.

1 is a configuration diagram of a communication system according to a first embodiment of the present invention. It is a block diagram of a sound emission system. It is a block diagram of the terminal device which concerns on 1st Embodiment of this invention. It is a flowchart of operation | movement of the terminal device in 1st Embodiment. It is an example of a display of related information Q of a 1st embodiment. It is an example of a display of related information Q of a 2nd embodiment. It is a flowchart of operation | movement of the terminal device in 4th Embodiment. It is a flowchart of operation | movement of the terminal device in 5th Embodiment. It is a block diagram of the terminal device in a modification. It is a flowchart of operation | movement of the terminal device in a modification.

<First Embodiment>
FIG. 1 is a configuration diagram of a communication system 100 according to the first embodiment. The communication system 100 is a computer system for providing information to a user HA located in a transportation vehicle M such as a train or a bus, and includes a terminal device 300, a sound emission system 200, and a distribution device 18. . The terminal device 300 is a portable communication terminal such as a smartphone or a tablet that provides information to the user HA, and can communicate with the distribution device 18 via the communication network 16 including a mobile communication network and the Internet. The user HA carries the terminal device 300 and gets on the vehicle M. Actually, a plurality of terminal devices 300 may exist in the vehicle M, but in the following description, attention is paid to any one terminal device 300.

  The sound emission system 200 is installed in the vehicle M, and emits the guidance sound G to the user HA in the vehicle M. The guidance voice G guides, for example, getting on and off of transportation facilities (names of stops such as train stations and bus stops), transfers, fares, operation status (eg presence / absence of delay), disaster information, nearby tourist spots, etc. It is voice. The distribution device 18 is a server connected to the communication network 16 and provides information (hereinafter referred to as “related information”) Q related to the guidance voice G to the terminal device 300. The related information Q is a sound or an image (for example, content such as a still image, a moving image, and a character string) related to the guidance sound G. For example, various information such as a character string expressing the pronunciation content of the guidance voice G, a character string obtained by translating the language of the pronunciation content into another language, or a voice is provided as the related information Q to the terminal device 300.

  As illustrated in FIG. 1, the distribution device 18 stores a plurality of related information Q corresponding to different guidance voices G. Each related information Q is associated with identification information D uniquely assigned to the related information Q. When receiving the request (hereinafter referred to as “distribution request”) R specifying the identification information D from the terminal device 300, the distribution device 18 relates to the related information Q specified by the identification information D of the distribution request R among the plurality of related information Q. Is transmitted to the requesting terminal device 300.

  FIG. 2 is a configuration diagram of the sound emission system 200. As illustrated in FIG. 2, the sound emission system 200 includes a reproduction processing device 22 and a sound emission device 24. The reproduction processing device 22 supplies an acoustic signal SA representing the guidance voice G to the sound emission device 24, and the sound emission device 24 (for example, a speaker) guides the guidance voice G according to the acoustic signal SA supplied from the reproduction processing device 22. Is emitted into the vehicle M.

  As illustrated in FIG. 2, the reproduction processing device 22 includes a storage device 224, an operation device 226, and a control device 228. The storage device 224 is a known recording medium such as a magnetic recording medium or a semiconductor recording medium, and stores a plurality of acoustic signals SA corresponding to the guidance voice G having different pronunciation contents. For example, for each of a plurality of points where a vehicle stops (for example, a stop point such as a train station or a bus stop), guidance voice G for guiding arrival at the point, transfer at the point, and information around the point Are stored in the storage device 224. In one arbitrary acoustic signal SA, in addition to the guidance voice G, the acoustic component of the identification information D of the related information Q of the guidance voice is contained. For example, the acoustic signal SA includes a modulated signal obtained by modulating (frequency modulating) a carrier wave in a predetermined frequency band with the identification information D. The frequency band of the acoustic component of the identification information D is a frequency band (for example, 18 kHz or more and 20 kHz or less) that exceeds the frequency band (for example, about 16 kHz or less in the audible range) of sound or music that the user listens in a normal environment. Is set within the range.

  The operation device 226 is an input device that receives an operation by a transportation manager (typically a vehicle driver) HB. For example, the administrator HB can select any one acoustic signal SA among the plurality of acoustic signals SA (guidance voice) stored in the storage device 224 by appropriately operating the operation device 226. is there.

  The control device 228 is configured by a processing device such as a CPU, for example, and comprehensively controls each element of the sound emission system 200. Specifically, the control device 228 supplies the sound output device 24 with the sound signal SA of the guidance voice G selected by the administrator HB by the operation on the operation device 226 among the plurality of sound signals SA stored in the storage device 224. To do. Therefore, for each instruction from the administrator HB, the guidance sound G and the acoustic component of the identification information D are emitted from the sound emitting device 24. A user HA in the vehicle M can listen to the guidance sound G emitted from the sound emitting device 24.

  FIG. 3 is a configuration diagram of the terminal device 300 according to the first embodiment. As illustrated in FIG. 3, the terminal device 300 includes a display device 31, a connection unit 32, a sound collection device 33, a communication device 34, a storage device 35, and a control device 36.

  The display device 31 (for example, a liquid crystal display panel) displays an image according to an instruction from the control device 36. For example, the display device 31 displays the related information Q received from the distribution device 18.

  The connection unit 32 is an interface to which the earphone 321 is connected. Specifically, a jack (audio jack) into which the plug of the earphone 321 is inserted is a good example of the connection unit 32. The earphone 321 is an acoustic device that is attached to the ear of the user HA and emits sound according to an instruction from the control device 36. Specifically, the sound emission part is inserted into the ear canal of the user HA (inner ear type, canal type) or the headband is placed on the head of the user HA and the sound emission part is inserted into the auricle. A covering type (overhead type (headphone)) earphone 321 can be connected to the connection portion 32. The earphone 321 attached to both ears of the user HA is a good example, but the earphone 321 attached to only one ear of the user HA can also be used. Note that a wireless communication device to which the earphone 321 is connected wirelessly (for example, near field communication) can also be used as the connection unit 32.

  The sound collection device 33 is an acoustic device (such as a microphone) that collects ambient sounds. For example, the sound collection device 33 collects the sound emitted from the sound emission device 24 and generates an acoustic signal SB representing the sound. The A / D converter that converts the acoustic signal SB from analog to digital is not shown for convenience.

  As illustrated in FIG. 3, the communication device 34 is a communication device that communicates with the distribution device 18 via the communication network 16, and includes a transmission processing unit 342 and a reception processing unit 344. The transmission processing unit 342 transmits the distribution request R described with reference to FIG. On the other hand, the reception processing unit 344 receives the related information Q distributed from the distribution device 18 in response to the distribution request R.

  The storage device 35 is a known recording medium such as a magnetic recording medium or a semiconductor recording medium, and stores a program executed by the control device 36 and various data used by the control device 36. For example, the storage device 35 stores content (for example, music and moving images) played on the terminal device 300.

  The control device 36 is configured by a processing device such as a CPU, for example, and executes a program stored in the storage device 35, thereby controlling the presentation of the related information Q to the user HA as illustrated in FIG. (Identification information acquisition unit 361, status information acquisition unit 362, terminal status determination unit 363, information presentation unit 364, reproduction control unit 365). A configuration in which a part of the function of the control device 36 is realized by a dedicated electronic circuit or a configuration in which the function of the control device 36 is distributed to a plurality of devices may be employed.

  The identification information acquisition unit 361 extracts the identification information D of the related information Q by analyzing the acoustic signal SB supplied from the sound collection device 33. Specifically, the identification information acquisition unit 361 extracts the identification information D by demodulation (frequency demodulation) of the acoustic signal SB. As will be understood from the above description, in the first embodiment, the sound emitting device 24 for emitting the guidance voice G transmits the identification information D by acoustic communication using the sound that is air vibration as the transmission medium. The sound collection device 33 of the terminal device 300 is used as a receiver that receives the identification information D. That is, the identification information D is transmitted together with the sound emission of the guidance sound G by the sound emission system 200. In other words, the identification information D is transmitted in an environment where the guidance voice G is emitted. The transmission processing unit 342 of the terminal device 300 transmits the distribution request R including the identification information D acquired by the identification information acquisition unit 361 to the distribution device 18.

  The status information acquisition unit 362 acquires terminal status information X indicating the usage status of the terminal device 300 (self device). The status information acquisition unit 362 according to the first embodiment acquires terminal status information X indicating whether or not the earphone 321 is connected to the connection unit 32 as a usage status. For obtaining the terminal status information X, a known technique can be arbitrarily adopted.

  The playback control unit 365 plays back the content stored in the storage device 35. Specifically, the content image is displayed on the display device 31 and the sound of the content is emitted to the earphone 321.

  The terminal status determination unit 363 determines whether the relevant information Q should be presented according to the terminal status information X acquired by the status information acquisition unit 362. In a situation where the earphone 321 is connected to the connection unit 32, the user HA is likely to be blocked. That is, it is estimated that the user HA cannot listen to the guidance voice G. In consideration of the above circumstances, in the first embodiment, when the terminal status information X indicates that the earphone 321 is connected to the connection unit 32, it is determined that the related information Q should be presented, and When the terminal status information X indicates a situation where the earphone 321 is not connected (when it is estimated that the user HA can listen to the guidance voice G), it is determined that it is not necessary to present the related information Q.

  The information presenting unit 364 presents the related information Q to the user HA when the terminal status determining unit 363 determines that the related information Q should be presented. The information presentation unit 364 of the first embodiment displays the related information Q by supplying the related information Q to the display device 31.

  FIG. 4 is a flowchart of the operation of the terminal device 300 in the first embodiment. 4 is started in response to an instruction from the user HA to the terminal device 300 (an instruction to start an application program). The sound collection device 33 collects the guidance voice G emitted by the sound emission device 24 of the sound emission system 200 and generates an acoustic signal SB (SA1). The control device 36 (identification information acquisition unit 361) extracts the identification information D by analyzing the acoustic signal SB generated by the sound collection device 33 (SA2). The transmission processing unit 342 of the communication device 34 transmits a distribution request R including the identification information D to the distribution device 18 (SA3).

  The distribution device 18 that has received the distribution request R from the terminal device 300 has the related information Q corresponding to the identification information D specified in the distribution request R among the plurality of related information Q (that is, the related information Q corresponding to the guidance voice G). ) Is selected and transmitted to the requesting terminal device 300. The reception processing unit 344 of the communication device 34 receives the related information Q transmitted from the distribution device 18 (SA4).

  The control device 36 (situation information acquisition unit 362) acquires terminal status information X that indicates whether the earphone 321 is connected to the connection unit 32 or not (SA5). Then, the control device 36 (terminal status determination unit 363) determines whether the presentation of the related information Q received from the distribution device 18 is necessary according to the terminal status information X (SA6). In a situation where the earphone 321 is connected to the connection unit 32, it is determined that the related information Q should be presented (SA6; YES), and the control device 36 (information presentation unit 364) causes the display device 31 to display the related information Q. (SA7). For example, as illustrated in FIG. 5, in the situation where the user HA is listening to the sound of the content using the earphone 321 connected to the connection unit 32, for example, the guidance sound G emitted from the sound emitting device 24. Listening is difficult. Therefore, the related information Q corresponding to the guidance voice G is presented to the user HA by the image display of the display device 31. In FIG. 5, a state in which a character string of pronunciation content, which is related information Q of the guidance voice G, is displayed on the display device 31 in conjunction with the sound of the guidance voice G “Next is XX (station name)”. Is illustrated.

  On the other hand, in a situation where the earphone 321 is not connected to the connection unit 32 (SA6; NO), it is estimated that the user HA can directly listen to the guidance voice G. Therefore, the control device 36 presents the related information Q. 4 ends.

  As described above, in the first embodiment, it is determined whether or not it is necessary to present the related information Q to the user HA according to the terminal status information X indicating the usage status of the terminal device 300, and it is necessary to present the related information Q. The related information Q is presented to the user HA when it is determined that Therefore, it is possible to reduce the troublesomeness of the user HA as compared with the configuration in which the related information Q of the guidance voice G is presented to the user HA every time the guidance voice G is emitted.

  Particularly in the first embodiment, it is necessary to present related information Q in a situation where the earphone 321 is connected to the terminal device 300 using the terminal situation information X that indicates whether or not the earphone 321 is connected to the connection unit 32 as a usage situation. It is judged that. Therefore, in a situation where it is estimated that the user HA is wearing the earphone 321 to the ear and the guidance voice G is difficult to hear, the related information Q of the guidance voice G is appropriately presented to the user HA while the earphone 321 is connected. If it is not done (for example, when it is highly likely that the user HA can listen to the guidance voice G), the user's annoyance is reduced compared to the configuration in which the related information Q of the guidance voice G is presented to the user HA. It is possible to reduce.

Second Embodiment
A second embodiment of the present invention will be described. Regarding the elements whose functions and functions are the same as those of the first embodiment in each aspect exemplified below, the detailed description of each is appropriately omitted by using the reference numerals used in the description of the first embodiment.

  The status information acquisition unit 362 according to the first embodiment acquires terminal status information X indicating whether or not the earphone 321 is connected to the connection unit 32 as a usage status. The status information acquisition unit 362 according to the second embodiment acquires terminal status information X indicating whether or not the content including sound is played by the playback control unit 365 (whether or not the content is played back) as the usage status of the terminal device 300. (Step SA5 in FIG. 4). For obtaining the terminal status information X, a known technique can be arbitrarily adopted.

  The terminal status determination unit 363 of the second embodiment determines whether or not the relevant information Q should be presented according to the terminal status information X acquired by the status information acquisition unit 362. In a situation where content including sound is being reproduced, it is estimated that the user HA is viewing the content and is difficult to hear the guidance voice G. In consideration of the above circumstances, the terminal status determination unit 363 of the second embodiment presents the related information Q when the terminal status information X indicates the status in which the content is being reproduced in step SA6 of FIG. If the terminal status information X indicates that the content is not reproduced (when it is estimated that the user HA can listen to the guidance voice G), the related information Q does not need to be presented. Judge.

  When the terminal status determining unit 363 determines that the related information Q should be presented, the information presenting unit 364 presents the related information Q to the user HA, while the terminal does not need to present the related information Q. Similar to the first embodiment, the presentation of the related information Q is omitted when the situation determination unit 363 determines. Therefore, as illustrated in FIG. 6, in a situation where the reproduction control unit 365 is reproducing the content (a situation where the user HA is listening to the content and it is difficult to hear the guidance voice G), the related information of the guidance voice G A character string of the pronunciation content that is Q is presented to the user HA.

  Also in the second embodiment, as in the first embodiment, the user HA is more troublesome than the configuration in which the related information Q of the guidance voice G is presented to the user HA every time the guidance voice G is emitted. It is possible to reduce. Further, in the second embodiment, it is determined that it is necessary to present the related information Q in the situation where the content is being reproduced, using the terminal status information X that indicates whether or not the content including the sound is reproduced as the usage status. The Therefore, in a situation where it is estimated that it is difficult for the user HA to view the content and listen to the guidance voice G, the related information Q of the guidance voice G is presented to the user HA while the content is not reproduced. Compared to the configuration in which the related information Q of the guidance voice G is presented to the user HA (for example, when the possibility that the user HA can listen to the guidance voice G is high), the user's troublesomeness may be reduced. Is possible. In the second embodiment, whether or not the earphone 321 is connected to the connection unit 32 is not taken into consideration in determining whether or not the related information Q needs to be presented, and therefore, when viewing the content without using the earphone 321. It is particularly effective.

<Third Embodiment>
The status information acquisition unit 362 according to the first embodiment acquires terminal status information X indicating whether or not the earphone 321 is connected to the connection unit 32 as a usage status. The status information acquisition unit 362 according to the third embodiment acquires terminal status information X indicating the level of noise around the terminal device 300 (hereinafter referred to as “noise level”) as the usage status of the terminal device 300 (step in FIG. 4). SA5). The noise level means a steady noise intensity such as an operating sound of an air conditioner or a crowded noise. The situation information acquisition unit 362 measures the noise level by analyzing the acoustic signal SB generated by the sound collection device 33. It should be noted that a known technique can be arbitrarily employed for measurement of the noise level (acquisition of the terminal status information X).

  The terminal status determination unit 363 according to the third embodiment determines whether the relevant information Q should be presented according to the terminal status information X acquired by the status information acquisition unit 362. In a situation where the noise level around the terminal device 300 is large, it is estimated that the user HA is difficult to hear the guidance voice G. In consideration of the above circumstances, the terminal status determination unit 363 of the third embodiment presents the related information Q when the noise level indicated by the terminal status information X exceeds a predetermined threshold in step SA6 of FIG. If the noise level indicated by the terminal status information X is lower than the threshold value (when it is estimated that the user HA can listen to the guidance voice G), it is determined that the related information Q need not be presented. . The threshold value to be compared with the noise level is selected experimentally or statistically according to, for example, the volume of the guidance voice G so that the maximum value of the noise level at which the guidance voice G can be heard is below the threshold value. It is also possible to dynamically control the threshold according to the volume of the guidance voice G.

  When the terminal status determining unit 363 determines that the related information Q should be presented, the information presenting unit 364 presents the related information Q to the user HA, while the terminal does not need to present the related information Q. Similar to the first embodiment, the presentation of the related information Q is omitted when the situation determination unit 363 determines. Therefore, in a situation where the noise level exceeds the threshold (a situation where the user HA is difficult to hear the guidance voice G due to noise), the related information Q related to the guidance voice G is the same as in the first embodiment and the second embodiment. Presented to user HA.

  In the third embodiment, as in the first embodiment, the user HA is less bothered than the configuration in which the related information Q of the guidance voice G is presented to the user HA every time the guidance voice G is emitted. It is possible to reduce. Further, in the third embodiment, it is necessary to present the related information Q in a situation where the noise level exceeds the threshold using the terminal situation information X that indicates the noise level around the terminal device 300 as the usage situation. To be judged. Therefore, in a situation where it is estimated that the user HA has a noise level that exceeds the threshold and it is difficult to listen to the guidance voice G, the related information Q of the guidance voice G is presented to the user HA, while the noise level is the threshold. The user's annoyance is reduced as compared to the configuration in which the related information Q of the guidance voice G is presented to the user HA until the user HA is less likely to listen to the guidance voice G (for example, when the user HA is highly likely to hear the guidance voice G). Is possible.

  In the third embodiment, the sound collection device 33 for collecting sound including the guidance voice G and the acoustic component of the identification information D is also used for collecting noise. However, the third embodiment is dedicated to collecting noise. It is also possible to mount the sound collection device separately from the sound collection device 33 of FIG.

<Fourth embodiment>
In the first embodiment, after the transmission of the distribution request R (SA3) and the reception of the related information Q (SA4), the control device 36 (terminal status determination unit 363) determines whether it is necessary to present the related information Q. (SA6). In the fourth embodiment, after determining whether or not the related information Q needs to be presented (SA6), transmission of the distribution request R (SA3) and reception of the related information Q (SA4) are executed.

  FIG. 7 is a flowchart of the operation of the terminal device 300 in the fourth embodiment. From the start of processing to the extraction of the identification information D (SA1 to SA2) is the same as in the first embodiment. The control device 36 (status information acquisition unit 362) acquires terminal status information X indicating the usage status of the terminal device 300 (SA5). The control device 36 (terminal status determination unit 363) determines whether or not it is necessary to present the related information Q corresponding to the guidance voice G according to the terminal status information X (SA6). The contents of the usage status indicated by the terminal status information X and the necessity of presenting the related information Q according to the terminal status information X are the same as in the first to third embodiments.

  When it is determined that the related information Q is to be presented (SA6; YES), the transmission processing unit 342 of the communication device 34 transmits a distribution request R including the identification information D to the distribution device 18 (SA3) and receives it. The processing unit 344 receives the related information Q transmitted from the distribution device 18 in response to the distribution request R (SA4). And the control apparatus 36 (information presentation part 364) displays the related information Q on the display apparatus 31 (SA7). That is, in the fourth embodiment, as in the first embodiment, the related information Q related to the guidance voice G is presented to the user HA as illustrated in FIG.

  On the other hand, when it is determined that the related information Q is not in a situation to be presented (SA6; NO), since acquisition of the related information Q is unnecessary, transmission of the distribution request R (SA3) and reception of the related information Q (SA4) The related information Q is not presented (SA7) and the process of FIG. 7 is terminated.

  In the fourth embodiment, as in the first embodiment, the user HA is less troublesome than the configuration in which the related information Q of the guidance voice G is presented to the user HA every time the guidance voice G is emitted. It is possible to reduce. In the fourth embodiment, whether or not the distribution request R for the related information Q is to be transmitted to the distribution device 18 is determined based on the determination result as to whether or not the related information Q is to be presented. That is, when it is determined that the related information Q should be presented, the distribution request R is transmitted. On the other hand, when it is determined that the related information Q should not be presented, the transmission of the distribution request R is omitted. The Therefore, the processing load for the terminal device 300 to acquire the related information Q as compared with the configuration in which the distribution request R of the related information Q is transmitted to the distribution device 18 until it is determined that the related information Q is not required to be presented. In addition, it is possible to reduce the amount of communication between the terminal device 300 and the distribution device 18.

<Fifth Embodiment>
In the first embodiment, after the extraction of the identification information D (SA2) and the transmission of the distribution request R (SA3), the control device 36 (terminal status determination unit 363) determines whether it is necessary to present the related information Q. (SA6). In the fifth embodiment, after determining whether or not the related information Q needs to be presented (SA6), the extraction of the identification information D (SA2) and the transmission of the distribution request R (SA3) are executed.

  FIG. 8 is a flowchart of the operation of the terminal device 300 in the fifth embodiment. When the sound collection device 33 generates the acoustic signal SB as in the first embodiment (SA1), the control device 36 (status information acquisition unit 362) acquires terminal status information X indicating the usage status of the terminal device 300 ( SA5). The control device 36 (terminal status determination unit 363) determines whether or not it is necessary to present the related information Q corresponding to the guidance voice G according to the terminal status information X (SA6). The contents of the usage status indicated by the terminal status information X and the necessity of presenting the related information Q according to the terminal status information X are the same as in the first to third embodiments.

  If it is determined that the related information Q should be presented (SA6; YES), the control device 36 (identification information acquisition unit 361) identifies the identification information by analyzing the acoustic signal SB generated by the sound collection device 33 in step SA1. D is extracted (SA2). Then, transmission of the distribution request R including the identification information D (SA3) and reception of the related information Q transmitted from the distribution device 18 in response to the distribution request R (SA4) are sequentially executed. The control device 36 (information presentation unit 364) causes the display device 31 to display the related information Q (SA7). That is, also in the fifth embodiment, as in the first embodiment, the related information Q related to the guidance voice G is presented to the user HA as illustrated in FIG.

  On the other hand, if it is determined that the relevant information Q is not to be presented (SA6; NO), it is not necessary to obtain the relevant information Q. Therefore, the identification information D is extracted (SA2) and the distribution request R is transmitted (SA3). The reception of the related information Q (SA4) and the presentation of the related information Q (SA7) are not executed, and the process of FIG. 8 ends.

  Also in the fifth embodiment, as in the first embodiment, the user HA is less troublesome than the configuration in which the related information Q of the guidance voice G is presented to the user HA every time the guidance voice G is emitted. It is possible to reduce. In the fifth embodiment, whether or not the identification information D is to be extracted is determined by the determination result of whether or not the related information Q is to be presented. That is, the identification information D is extracted when it is determined that the related information Q is to be presented, while the extraction of the identification information D is omitted when it is determined that the related information Q is not to be presented. The Therefore, it is possible to reduce the processing load for extracting the identification information D by the terminal device 300 as compared with the configuration in which the identification information D is extracted until it is determined that the related information Q is not required to be presented. is there. In the fifth embodiment, transmission of the distribution request R (SA3) and acquisition of the related information Q (SA4) are also omitted when presentation of the related information Q is unnecessary. Therefore, as in the fourth embodiment, the terminal device There is also an advantage that the amount of communication between 300 and the distribution device 18 can be reduced.

<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 the above-described embodiments, the presence / absence of connection of the earphone 321 to the terminal device 300, the presence / absence of content reproduction by the reproduction control unit 365, and the noise level around the terminal device 300 are independently used. However, the usage status of the terminal device 300 is not limited to the above example. For example, the use status can be set by combining the presence / absence of connection of the earphone 321 to the terminal device 300 and the presence / absence of content reproduction by the reproduction control unit 365. The terminal status determination unit 363 determines that the relevant information Q should be presented when the earphone 321 is connected to the connection unit 32 and the playback control unit 365 is playing back content. As understood from the above description, the usage status includes both a single usage status and a combination of a plurality of usage statuses.

(2) In each of the above-described embodiments, the configuration in which the necessity of presenting the related information Q to the user HA is determined according to the terminal status information X indicating the usage status of the terminal device 300 is exemplified. It is also possible to take into account the separate information from the presentation of the related information Q.

  FIG. 9 is a configuration diagram of a terminal device 300 that uses importance I for presentation of related information Q in addition to terminal status information X. The importance level I is an index of the importance or urgency of the related information Q, and is set in advance by the creator of the related information Q according to the content of the related information Q. For example, the importance level I of the related information Q (for example, information to be notified to the user HA regardless of the usage status of the terminal device 300) for notifying the user HA of an emergency such as a disaster or emergency evacuation is set to a high numerical value. The

  The control device 36 of the terminal device 300 in FIG. 9 functions as the importance determination unit 366 in addition to the same elements as in the above-described embodiments. The importance level determination unit 366 acquires the importance level I of the related information Q and determines whether the importance level I is high or low. Specifically, the importance level I is added to the related information Q transmitted from the distribution device 18 to the terminal device 300 in response to the distribution request R (SA3), and the importance level determination unit 366 is received by the reception processing unit 344. Obtain importance level I.

  FIG. 10 is a flowchart of the operation of the terminal device 300 of FIG. From the start of processing to the transmission of the distribution request R (SA1 to SA3) is the same as in the first embodiment. The distribution device 18 transmits the related information Q and the importance level I to the terminal device 300 in response to the distribution request R (SA3). The reception processing unit 344 receives the related information Q and the importance level I transmitted from the distribution device 18 (SA8). The control device 36 (importance level determination unit 366) determines whether the importance level I is high or low (SA9). The control device 36 determines that the importance level I is high when it exceeds the threshold value, and determines that it is low when the importance level I is below the threshold value. The threshold value to be compared with the importance level I is set to a variable value (for example, a numerical value according to an instruction from the user) or a predetermined fixed value.

  If it is determined that the importance level I is high (SA9; YES), the acquisition of the terminal status information X (SA5) and the necessity determination of the presentation of the related information Q (SA6) are not executed, but the control device 36 (information The presentation unit 364) presents the related information Q to the user HA (SA7). That is, when the importance level I is high, related information Q is presented to the user HA regardless of the usage status of the terminal device 300 indicated by the terminal status information X. On the other hand, when it is determined that the importance level I is low (SA9; NO), the necessity of presenting the related information Q is determined (SA6) as in the first embodiment, and the related information is displayed when the presenting is necessary. Q is presented to the user HA (SA7).

  According to the configuration exemplified above, when the importance level I is high, the related information Q is presented to the user HA regardless of the usage status indicated by the terminal status information X. The possibility that the user HA overlooks the related information Q can be reduced. On the other hand, since the presentation / non-presentation of the related information Q is controlled according to the usage status information X when the importance level I is low, the guidance voice is emitted every time the guidance voice G is emitted, as in the above-described embodiments. Compared with the configuration in which the related information Q of G is presented to the user HA, the troublesomeness of the user HA can be reduced.

  It should be noted that the method for determining whether the importance level I is high or low is arbitrary. For example, when the importance level I is a binary value of high / low, the importance level determination unit 366 determines whether the importance level I is high or low according to which of the binary levels. That is, the contrast between the importance level I and the threshold value is not essential. Further, in the above description, the method of acquiring the importance level I by the importance level determination unit 366 is appropriately changed. For example, the importance level I can be notified from the sound emitting system 200 to the terminal device 300 by acoustic communication together with the identification information D.

(3) In each of the above-described embodiments, the configuration in which the related information Q is presented to the user HA by the image display of the display device 31 is illustrated. However, the method of presenting the related information Q is not limited to the above examples. For example, the related information Q can be emitted as sound through the earphone 321 connected to the connection unit 32 of the terminal device 300 or the speaker of the terminal device 300 to be presented to the user HA. In addition, when content including sound is being played back by the terminal device 300, a configuration in which the related information Q is emitted as sound after the volume of the content is reduced may be employed.

(4) In the above-described embodiments, acoustic communication is used for transmitting the identification information D to the terminal device 300. However, the communication method for transmitting the identification information D to the terminal device 300 is not limited to the above examples. For example, the identification information D can be transmitted to the terminal device 300 by wireless communication (for example, short-range wireless communication) using infrared rays or radio waves. However, in the above-described form in which acoustic communication is used for transmitting the identification information D, the sound emitting device 24 that emits the guidance voice G is used for the transmission of the identification information D. There is an advantage that the configuration of the communication system 100 is simplified as compared with the configuration in which the transmitter is used for transmitting the identification information D.

(5) In each of the above-described embodiments, the related information Q is stored in the distribution device 18, but the storage destination of the related information Q is not limited to the distribution device 18. For example, a plurality of related information Q can be stored in the storage device 35 of the terminal device 300. The information presentation unit 364 presents the user HA with the related information Q specified by the identification information D acquired by the identification information acquisition unit 361 among the plurality of related information Q stored in the storage device 35. In this case, since the communication device 34 and the distribution device 18 are not required, there is an advantage that the configuration for acquiring the related information Q is simplified.

(6) In each of the above-described embodiments, the sound corresponding to the acoustic signal SA stored in advance in the storage device 224 of the sound emitting system 200 is emitted from the sound emitting device 24. However, the guidance sound G generated by the manager HB is emitted. It is also possible to include the identification information D in the acoustic signal SA generated by collecting the sound and to emit the sound from the sound emitting device 24 in real time.

(7) In each of the embodiments described above, the playback control unit 365 plays the content stored in the storage device 35 of the terminal device 300, but the content playback method is not limited to the above examples. For example, the playback control unit 365 can play back content that is streamed from a content server. As understood from the above description, it is not essential to store the content in the storage device 35 of the terminal device 300.

(8) The terminal device 300 exemplified in the above-described embodiments is preferably realized by cooperation of a general-purpose arithmetic processing device such as a CPU (Central Processing Unit) and a program. The program includes an identification information acquisition unit 361 that acquires identification information that is transmitted together with the sound of the guidance voice, a status information acquisition unit 362 that acquires terminal status information indicating the usage status of the own device, and information related to the guidance voice and the identification information. The terminal status determination unit 363 that determines whether or not the relevant information specified in the above is to be presented according to the terminal status information, and the terminal status judgment unit 363 determines that the relevant information is to be presented In this case, the computer is caused to function as the information presentation unit 364 that presents the relevant information to the user. The programs exemplified above can 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. The programs exemplified above can be provided from the server device in the form of distribution via the communication network 16 and installed in the computer.

(9) The present invention can also be specified as an operation method (information presentation method) of the terminal device 300 according to each of the above-described embodiments. Specifically, in the information presentation 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 separate devices) emits guidance voice. Whether or not it is a situation to obtain terminal status information indicating the usage status of its own device, and to present related information that is related to the guidance voice and specified by the identification information Is determined according to the terminal status information, and when it is determined that the relevant information is to be presented, the relevant information is presented to the user.

DESCRIPTION OF SYMBOLS 100 ... Communication system, 200 ... Sound emission system, 300 ... Terminal device, 16 ... Communication network, 18 ... Distribution device, 22 ... Reproduction processing device, 224 ... Storage device, 226 ... Operation device, 228 …… Control device, 24 …… Sound emitting device, 31 …… Display device, 32 …… Connecting unit, 321 …… Earphone, 33 …… Sound collecting device, 34 …… Communication device, 342 …… Transmission processing unit, 344: Reception processing unit, 35 ... Storage device, 36 ... Control device, 361 ... Identification information acquisition unit, 362 ... Status information acquisition unit, 363 ... Terminal status determination unit, 364 ... Information presentation unit, 365... Playback control unit, 366.

Claims (5)

An identification information acquisition unit for acquiring identification information transmitted together with the sound emission of the guidance voice;
A status information acquisition unit that acquires terminal status information indicating the usage status of the own device;
A terminal status determination unit that determines whether or not the related information specified by the identification information is related to the guidance voice according to the terminal status information;
An information presenting unit that presents the relevant information to the user when the terminal status judging unit determines that the relevant information is to be presented ;
The status information acquisition unit acquires terminal status information indicating whether or not an earphone is connected to the terminal device as the usage status,
The terminal status determination unit determines that it is necessary to present the related information when the terminal status information indicates a status where the earphone is connected . An identification information acquisition unit for acquiring identification information transmitted together with the sound emission of the guidance voice;
A status information acquisition unit that acquires terminal status information indicating the usage status of the own device;
A terminal status determination unit that determines whether or not the related information specified by the identification information is related to the guidance voice according to the terminal status information;
An information presenting unit that presents the relevant information to the user when the terminal status judging unit determines that the relevant information should be presented ;
A playback control unit for playing back content including sound,
The status information acquisition unit acquires terminal status information indicating whether or not the content is played by the playback control unit as the usage status,
The terminal status determination unit determines that the related information needs to be presented when the terminal status information indicates a status in which the content is being reproduced . The identification information acquiring unit, according to claim 1 for extracting the identification information in the analysis of an acoustic signal of the sound supplied from the sound collecting device for collecting sound and a sound component of said identification information and said guidance voice or The terminal device according to claim 2 .   An identification information acquisition unit for acquiring identification information transmitted together with the sound of the guidance voice;
  A status information acquisition unit that acquires terminal status information indicating the usage status of the own device;
  A terminal status determination unit that determines whether the related information specified by the identification information and related information is to be presented according to the terminal status information; and
  When the terminal status determination unit determines that the relevant information should be presented, the computer functions as an information presentation unit that presents the relevant information to the user.
  The status information acquisition unit acquires terminal status information indicating whether or not an earphone is connected to the terminal device as the usage status,
  The terminal status determination unit determines that presentation of the related information is necessary when the terminal status information indicates a status where the earphone is connected.
  program.   An identification information acquisition unit for acquiring identification information transmitted together with the sound of the guidance voice;
  A status information acquisition unit that acquires terminal status information indicating the usage status of the own device;
  A terminal status determination unit that determines whether the related information specified by the identification information is related to the guidance voice according to the terminal status information;
  An information presenting unit that presents the relevant information to the user when the terminal status judging unit determines that the relevant information should be presented; and
  Let the computer function as a playback controller that plays back content that includes sound,
  The status information acquisition unit acquires terminal status information indicating whether or not the content is played by the playback control unit as the usage status,
  The terminal status determination unit determines that the related information needs to be presented when the terminal status information indicates a status in which the content is being reproduced.
  program.

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