JP2012032676A - Delivered digital music data reproducing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide digital music data capable of creating an appropriate atmosphere in accordance with a business type of each shop without requiring complicated operation.SOLUTION: A delivered digital music data reproducing system comprises: a digital broadcasting receiver 10 for receiving streamed digital music data; at least one reproduction unit 20 which is connected to the receiver 10 and reproduces the digital music data; music ID acquisition means 12 for acquiring music ID data included in the digital music data; connected reproduction unit identification means 13 for identifying a music selection type set for the reproduction unit 20; and output control means 14 for referring to a music selection data table 15 and outputting the digital music data to the reproduction unit 20 when the reproduction unit 20 for which the music selection type corresponding to the music ID of the received digital music data is set exists.

Description

  The present invention relates to a system for playing back streamed digital music data. For example, in a tenant building where various types of businesses enter, digital music data suitable for each type of business can be selectively selected. The present invention relates to a distributed digital music data playback system that can be played back.

  Conventionally, services that provide BGM (background music) and BGV (background video) using playback devices installed in various stores, offices, clinics, and the like have become widespread. In such a service, for example, digital music data to be distributed is classified into genres such as classical music, jazz, enka, JPOP, etc., and BGM data and BGV data for each genre are assigned to a plurality of channels, respectively, so that cable broadcasting, satellite Broadcast and terrestrial broadcasts are distributed. In a store or the like where a playback device is installed, a channel corresponding to a favorite genre is selected, and music or video assigned to the channel is played back as BGM or BGV.

  Further, there is a technology in which a user can reserve music broadcast data desired to be received, record the music broadcast data reserved in the server, and allow the user to view the music broadcast data recorded at an arbitrary time. It is disclosed (for example, see Patent Document 1).

JP 2000-287193 A

  However, by selecting a channel for which a genre is set in advance, the technology for playing music and video in the genre assigned to the channel as BGM or BGV roughly plays music that matches the atmosphere of each store. However, since categorization by genre does not correspond to individual industries, music that does not match the atmosphere of each store was sometimes included. In other words, there are music and video of a suitable genre in each industry, for example, there is a tendency that apparel stores like lively music, music that calms patients' feelings at clinics, music that gives a refreshing impression at beauty salons, etc. is there. However, in the conventional genre setting for each channel, music and background video to be distributed are classified according to genres such as classical music, jazz, enka, JPOP, etc. The genre set for each channel does not necessarily match the atmosphere of each store. I couldn't say that.

  Further, in the technology in which the music broadcast data that the user desires to receive is reserved and recorded on the server, there is a problem that the user has to perform a reservation operation one by one, increasing the user's trouble.

  It is also conceivable to install digital music data receiving equipment in a tenant building and distribute music broadcasts to playback devices installed in each store. However, even in this case, the received digital music data must be classified and extracted so as to match the atmosphere of each store by manual operation, which is inefficient and impractical.

  Furthermore, it is conceivable to incorporate index data for extracting music according to the type of business into digital music data, but this requires time and effort to create digital music data. In addition, each digital music data cannot be applied to different industries, and lacks versatility.

  The present invention has been proposed in view of the above-described circumstances, and a system for extracting and providing digital music data that can create an appropriate atmosphere according to the type of business of each store without requiring troublesome operations. The purpose is to build.

  In order to achieve the above-described object, the distributed digital music data playback system of the present invention has the following features. That is, the distributed digital music data playback system of the present invention includes a digital broadcast receiver that receives digital music data that is stream-distributed, and at least one playback device that is connected to the digital broadcast receiver and plays back the digital music data. A digital music data playback system for playing back the digital music data on a playback device according to a predetermined music selection condition, comprising: a music ID acquisition means, a connected playback device identification means, and an output control means. It is characterized by.

  Here, the music ID acquisition means is means for acquiring music ID data included in the digital music data distributed in a stream. The connected playback device identification means is a means for identifying a music selection type for selecting a playback music set in advance for the playback device currently connected. The output control means refers to a predetermined music selection data table in which the music selection type and the music ID are linked, and there is a playback device in which the music selection type corresponding to the music ID of the received digital music data is set. Is a means for outputting digital music data to the playback apparatus.

  In the distributed digital music data playback system having such a configuration, for example, digital music data is stream-distributed by cable broadcasting or wireless broadcasting, and the digital music data is played back by a playback device installed in each store. ing.

  In the present invention, a digital broadcast receiver is installed in a management room or the like of a tenant building, and digital music data used in each store is received collectively. In addition, at least one playback device is connected to the digital broadcast receiver, and digital music data can be played back by this playback device. In the playback device, music selection type data for selecting the type of music data to be played back is set, and the music selection type set in the playback device is identified by the function of the connected playback device identification means.

  And the digital music data stream-distributed by a receiving means is received, and music ID contained in this digital music data is acquired by a music ID acquisition means. The digital broadcast receiver includes a music selection data table in which a music selection type and a music ID are associated with each other, and the function of the output control means refers to the music selection data table and stores the received digital music data. When there is a playback device in which the music selection type corresponding to the music ID is set, the digital music data is output to the playback device.

  In addition to the above-described configuration, the playback device can further include a storage control unit. Here, the storage control unit sequentially stores the digital music data output from the output control unit in a predetermined storage unit, and each time the digital music data stored in the storage unit is sequentially reproduced, the storage control unit has a predetermined storage capacity. Until it becomes, it has a function for sequentially erasing the reproduced digital music data.

  In the distributed digital music data playback system configured as described above, digital music data output to each playback device is temporarily stored in the storage unit and then played back sequentially. The digital music data that has been reproduced is sequentially deleted by the function of the storage control means. At this time, control is performed so that the digital music data stored in the storage unit does not become a predetermined storage capacity or less. .

  The control by the storage control means can be performed according to a preset time schedule. In this case, for example, the digital music data is reproduced and erased from the opening time of the store to the closing time, and the digital music data is not reproduced and erased from the closing time of the store to the opening time. Only store digital music data.

  According to the distributed digital music data playback system of the present invention, a playback device is installed in each store in advance, and each playback device has a music selection type that can create an appropriate atmosphere according to the type of business of the store. Just by setting, digital music data corresponding to the music selection type set in the playback device is automatically played back.

  Therefore, since it is possible to play back digital music data that can create an appropriate atmosphere according to the type of business of each store without requiring labor, it is possible to efficiently distribute appropriate digital music data. It becomes possible.

  In addition, when the digital music data distributed to each playback device is stored in the storage unit and then sequentially played back, the digital music data that has been played back is erased so that it does not become less than a predetermined storage capacity. Therefore, the reproduction of the digital music data is not interrupted, and it becomes possible to stably create an appropriate atmosphere according to the business type of each store.

  In addition, if digital music data is accumulated in the storage unit between the closing time of the store and the opening time, and the stored digital music data is played back between the opening time and the closing time, each store is more efficient. It is also possible to create an appropriate atmosphere according to the type of industry.

The functional block diagram which shows the structure of the delivery digital music data reproduction system which concerns on embodiment of this invention. Explanatory drawing which shows the structure of a music selection data table. Explanatory drawing which shows the structure of digital music data. The flowchart which shows the reception output process in a delivery digital music data reproduction system. The flowchart which shows an example of the storage reproduction | regeneration processing of digital music data. The flowchart which shows the other example of the storage reproduction | regeneration processing of digital music data.

  Hereinafter, an embodiment of a distributed digital music data reproduction system of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram showing the configuration of a distributed digital music data playback system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the configuration of a music selection data table, and FIG. 3 is an explanatory diagram showing the configuration of digital music data FIG. 4 is a flowchart of reception output processing in the distributed digital music data playback system, and FIGS. 5 and 6 are flowcharts of storage processing of digital music data.

<Outline of distributed digital music data playback system>
The distributed digital music data playback system according to the embodiment of the present invention uses digital music data such as BGM and BGV by using playback devices installed in various stores, offices, clinics, etc. residing in tenant buildings. The digital music data to be streamed can be received, and the received digital music data can be extracted and output to the playback device in accordance with preset music selection criteria. Yes.

<Configuration of distributed digital music data playback system>
As shown in FIG. 1, the distributed digital music data playback system according to the embodiment of the present invention includes a digital broadcast receiver 10 installed in a management room of a tenant building and a playback device 20 installed in each store. The digital broadcast receiver 10 includes a receiving unit 11, a song ID acquisition unit 12, a connected playback device identification unit 13, an output control unit 14, and a song selection data table 15. . Each means is configured so that a computer having functions such as a CPU, a ROM, and a RAM operates according to a program, and controls the operation of peripheral devices to exert its functions. In the present embodiment, the program refers to software or a logic circuit that exhibits the same function. Although not shown, the digital broadcast receiver 10 used in the present embodiment has a known function for receiving stream-distributed digital music data in addition to the above-described functional means unique to the present invention. Yes.

<Receiving means>
The receiving means 11 is means for receiving digital music data distributed in a stream, and includes an electronic circuit and a program. The digital music data stream may be distributed by any method such as a public telephone line, a dedicated communication line, an Internet line, or wireless broadcasting. As shown in FIG. 3, the digital music data received by the receiving means 11 has a header part and a payload part as main data elements for each music piece, and the music ID data is included in the header part. Music performance data is included in the payload portion. Here, the music performance data may be MIDI standard digital data that generates a performance sound or the like, or may be background video data or character data added thereto.

<Music ID acquisition means>
The music ID acquisition unit 12 includes a program for acquiring music ID data included in the digital music data received by the reception unit 11. With the function of the music ID acquisition means 12, music ID data included in the header portion of the digital music data to be streamed is acquired. The acquired music ID data is used for extracting digital music data.

<Connected playback device identification means>
The connected playback device identification unit 13 includes a program for identifying the music selection type of the playback device 20 connected to the digital broadcast receiver 10. In the playback device 20 of the present embodiment, a music selection type capable of creating an appropriate atmosphere is recorded according to the type of business of a store that performs music playback using the playback device 20. Then, the music selection type set in the playback device 20 is identified by the function of the connected playback device identification means 13.

<Reproducing device>
The playback device 20 is a device for playing back digital music data, and includes, for example, a stereo playback device and a display device. That is, when the received digital music data is only sound data, the stereo reproduction device reproduces the sound data, and when the digital music data consists of sound data and video data, the stereo reproduction device reproduces the sound data. The video data is displayed on the display device. A device corresponding to a portion for playing back digital music data can use a commercially available stereo playback device or display device.

  Further, the playback device 20 of the present embodiment can be configured to include a storage unit 21 and storage control means 22. In this case, the digital music data output to each playback device 20 is sequentially played after being stored in the storage unit 21. The digital music data that has been reproduced is sequentially deleted by the function of the storage control means 22, but at this time, control is performed so that the digital music data stored in the storage unit 21 does not become a predetermined storage capacity or less. Is called.

<Storage unit / storage control means>
The storage unit 21 includes, for example, a RAM, an HDD, and the like, and functions as a buffer memory that stores digital music data output to each playback device 20. The storage control means 22 includes a program for sequentially erasing the reproduced digital music data until the predetermined storage capacity is obtained each time the digital music data stored in the storage unit 21 is sequentially reproduced.

  For example, the storage control unit 22 performs a FIFO process on the digital music data stored in the storage unit 21. That is, the storage unit 21 stores digital music data that is always output regardless of whether the store is open or closed, but the data is played back from the oldest stored time, and the function of the storage control means 22 The digital music data that has been played back is erased. At this time, when the amount of stored digital music data is larger than the amount of digital music data to be reproduced / erased and exceeds the storage capacity of the storage unit 21, the digital music data having the oldest storage time is sequentially added. It may be erased and the newly output digital music data may be stored, or the newly output digital music data may not be stored when the storage capacity of the storage unit 21 is exceeded. .

  In the present embodiment, the digital music data is not stored in the storage unit 21 and a predetermined storage capacity (for example, digital music data of about 10 songs) is stored in order to prevent the digital music data to be reproduced from being lost. Digital music data is erased until the amount of stored digital music data is smaller than the amount of digital music data to be played back / erased, and when the predetermined storage capacity is reached, the digital music data is erased. It is preferable not to delete the music data after the music data has been reproduced. Thereby, even if the output of the digital music data is delayed for some reason, the reproduction is not interrupted.

  Further, the digital music data may be reproduced and erased according to a preset time schedule. In the case of having such a function, for example, digital music data is accumulated in the storage unit 21 from the store closing time to the store opening time, and the stored digital music data is stored from the store opening time to the store closing time. And can be erased based on a predetermined condition.

<Music selection type>
The music selection type set in the playback device 20 is not classified according to genre such as classical music, jazz, enka, JPOP, etc., as is done in the conventional music selection for each channel. The type of music that is lively, the type of music that calms the patient's feelings at the clinic, and the type of music that gives a refreshing impression at the beauty salon. In other words, in the present invention, the music selection type is set in order to select music that matches the atmosphere of each industry regardless of the music genre. A music selection data table 15 is constructed based on the music selection type.

<Music selection data table>
As shown in FIG. 2, the music selection data table 15 is a data table configured by associating a music selection type with a plurality of music IDs. In this embodiment, eight music selection types A to G are set, and each music selection type corresponds to a different business type. The music selection data table 15 is stored in a RAM, HDD, or the like that constitutes the digital broadcast receiver 10.

  In this embodiment, as shown in FIG. 2, music selection types are set corresponding to restaurants, apparel, hotels, banks / securities, coffee shops, clinics, general stores, but the music selection types are not limited to these. However, it may correspond to other industries, or may correspond to any theme such as “sea”, “mountain”, “insect”, “bird”, “season”, etc. . In this case, in each store, a music selection type of a theme that seems to be most appropriate for the type of business may be selected, and the music selection type may be set in the playback device 20.

<Output control means>
The output control means 14 refers to the music selection data table 15 in which the music selection type and the music ID are linked, and there is a playback device 20 in which the music selection type corresponding to the music ID of the received digital music data is set. In this case, the program consists of a program for outputting digital music data to the playback device 20. With the function of the output control means 14, digital music data corresponding to the set music selection type is output to each playback device 20. Note that the output digital music data may be played back in real time by the playback device 20, but as described above, after being temporarily stored in the storage unit 21, it may be played back sequentially by the playback device 20. As described above, according to the music selection type set in the playback device 20, the digital music data is output to the playback device 20 installed in each store, so that the music or video that matches the atmosphere of each store is played.

  In the example shown in FIG. 1, since the music selection type set in the playback device 20 a is “A”, the corresponding industry is identified as “restaurant”, and the corresponding music is output with reference to the music selection data table 15. Is done. Similarly, since the music selection type set in the playback device 20b is “B”, the corresponding industry is identified as “apparel”, and the music selection type set in the output / playback device 20c is “C”. Therefore, since the corresponding industry is identified as “hotel” and the music selection type set in the playback device 20d is “F”, the corresponding industry is identified as “clinic” and set in the playback device 20e. Since the music selection type is “A”, the corresponding industry is identified as “restaurant”, and the corresponding music is output with reference to the music selection data table 15.

<Digital music data reception output processing>
Next, digital music data reception / output processing in the distributed digital music data playback system according to the embodiment of the present invention will be described. Although not shown, identification processing of the playback device 20 is performed as a premise of digital music data reception output processing. In the identification process of the reproduction apparatus 20, the music selection type set in the reproduction apparatus 20 is identified by the function of the connected reproduction apparatus identification means 13.

  In the digital music data reception / output process, as shown in FIG. 4, the digital music data stream-distributed is received by the function of the receiving means 11 (S1), and the received digital music is received by the function of the music ID acquiring means 12 The music ID included in the data is acquired (S2). Subsequently, the function of the output control unit 14 refers to the music selection data table 15 to determine whether or not there is a playback device (any one of 20a to 20f) of the music selection type corresponding to the acquired music ID. (S3). Here, when there is a playback device (any one of 20a to 20f) of the music selection type corresponding to the acquired music ID, digital music data is sent to the playback device (any one of 20a to 20f). Output (S4).

<Digital Music Data Storage / Reproduction Processing (1)>
The playback device 20 may play back the output digital music data in real time, but in the present embodiment, the digital music data is temporarily stored in the storage unit 21 and played back sequentially. That is, as shown in FIG. 5, it is determined whether or not the storage unit 21 has a free storage area (S11). If the storage unit 21 has a free storage area, the output digital music data is stored in the storage unit. 21 (S12). On the other hand, when there is no free storage area in the storage unit 21, the digital music data is not stored.

  Subsequently, the stored digital music data is sequentially reproduced (S13). Then, the function of the storage control means 22 determines whether the storage capacity of the digital music data is equal to or greater than a predetermined value (S14). If the storage capacity of the digital music data is equal to or greater than the predetermined value, the reproduced digital music data is stored. Erase (S15). On the other hand, if the storage capacity of the digital music data is less than the predetermined value, the reproduced digital music data is stored in the storage unit 21 without being erased.

<Digital Music Data Storage / Reproduction Processing (2)>
Further, as another embodiment of the storage / reproduction process in the reproduction apparatus 20, the digital music data may be reproduced and erased according to a preset time schedule. That is, as shown in FIG. 6, it is determined whether or not the storage unit 21 has a free storage area (S21). If the storage unit 21 has a free storage area, the output digital music data is stored in the storage unit. 21 (S22). On the other hand, when there is no free storage area in the storage unit 21, the digital music data is not stored.

  Subsequently, it is determined whether or not it is a period for reproducing and erasing digital music data (S23). If it is a period for reproducing and erasing digital music data, the stored digital music data is sequentially reproduced (S24). . Then, the function of the storage control means 22 determines whether the storage capacity of the digital music data is equal to or greater than a predetermined value (S25). If the storage capacity of the digital music data is equal to or greater than the predetermined value, the reproduced digital music data is stored. Erase (S26). On the other hand, if the storage capacity of the digital music data is less than the predetermined value, the reproduced digital music data is stored in the storage unit 21 without being erased. Further, if the digital music data is not reproduced or erased, the processing after the above-described digital music reproduction processing (S24 to S26) is not performed.

DESCRIPTION OF SYMBOLS 10 Digital broadcast receiver 11 Receiving means 12 Music ID acquisition means 13 Connection reproduction | regeneration apparatus identification means 14 Output control means 15 Music selection data table 20 (20a-20e) Reproduction apparatus 21 (21a-21e) Storage part 22 (22a-23e) Memory control means

Claims (2)

A digital broadcast receiver that receives digital music data that is streamed and at least one playback device that is connected to the digital broadcast data and plays back the digital music data, and plays back the digital music data according to predetermined music selection conditions A distribution digital music data playback system for playback on a device, comprising: a music ID acquisition means; a connected playback device identification means; an output control means;
The music ID acquisition means acquires music ID data included in the digital music data distributed in a stream,
The connected playback device identifying means identifies a music selection type for selecting a playback music preset in the playback device currently connected,
The output control means refers to a predetermined music selection data table in which a music selection type and a music ID are linked, and a playback device in which a music selection type corresponding to the music ID of the received digital music data is set. If there is, output the digital music data to the playback device,
A distribution digital music data playback system characterized by the above. The playback device further includes storage control means,
The storage control unit sequentially stores the digital music data output from the output control unit in a predetermined storage unit, and each time the digital music data stored in the storage unit is sequentially reproduced, the storage control unit Until then, the digital music data that was played is erased sequentially,
The distributed digital music data playback system according to claim 1.

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