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DESCRIPTION JP2008203337

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DESCRIPTION JP2008203337
To change the music to be reproduced according to the change of the position and the movement
state of a moving object. A mobile body transmits environment information to a music data
distribution server, and receives a music file including music data to be reproduced from the
music data distribution server and a reproduction control parameter at the time of reproduction
of the music data. And means for reproducing music data while controlling music reproduction
based on the reproduction control parameter related to the detected moving object state, and the
music data distribution server moves the music data and the music data for each environment
information. A reproduction control parameter for each state of the body is stored in association,
and means for receiving environment information of the moving body and music data to be
reproduced on the moving body are selected according to the environment information, and the
music Means for reading out reproduction control parameters associated with data and
generating a music file consisting of the music data and the reproduction control parameters ,
And means for transmitting the music files to the mobile. [Selected figure] Figure 1
Music data distribution system, music data distribution server, and music data distribution
method
[0001]
The present invention relates to a music data distribution system, a music data distribution
server, and a music data distribution method for selecting and distributing music data to be
reproduced according to the position or movement of a mobile object such as a vehicle or a
terminal carried by a human.
[0002]
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2. Description of the Related Art Conventionally, in order to reproduce music data according to
the traveling position, traveling speed, and the mood of the passenger in a moving car, detection
means for detecting the traveling place and traveling speed of the vehicle, and the mood of the
passenger of the vehicle Setting means for setting the position information, and when requesting
music data from the information center, by attaching and transmitting the position information
and speed information of the vehicle and the passenger mood information, the traveling position
and the traveling speed of the vehicle, the passenger There is known a music distribution system
capable of distributing music data according to the mood of the person and reproducing music
data according to the traveling position, the traveling speed, the mood of the passenger, etc. in a
moving car (see Patent Document 1) ).
JP 2001-189969 A
[0003]
However, in the music delivery system described in Patent Document 1, since the music delivery
system performs selection of music to be played back on behalf of the passenger, vehicle position
information and speed information, boarding The music recommended by the music distribution
system is selected and reproduced only based on the person's mood information, and the
reproduction of the music according to the driving condition of the vehicle is controlled
according to the environmental condition in the vehicle, There is a problem that it is difficult to
autonomously generate music in accordance with the state of the vehicle, and it is not possible to
provide music that the user can enjoy depending on the position of the vehicle or the traveling
state.
[0004]
The present invention has been made in view of such circumstances, and selects music data to be
reproduced according to the position or movement state of a mobile object such as a vehicle or a
terminal carried by a human, and also plays music. Music data distribution system for
distributing music data capable of changing music to be reproduced according to a change in the
position or movement state of a moving object by controlling a reproduction method according
to a music data distribution server, a music data distribution server and a music data distribution
method Intended to provide.
[0005]
The present invention is a music data distribution system comprising a moving body for
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reproducing music data and a music data distribution server for distributing the music data to
the moving body, wherein the moving body is an environment of the moving body. Music
comprising: environment information acquisition means for acquiring information; music data to
be reproduced from the music data distribution server by transmitting the environment
information to the music data distribution server; and reproduction control parameters at the
time of reproduction of the music data Music reproduction is performed based on the
reproduction control parameter related to the state of the moving body detected by the music file
receiving means for receiving a file, the state detecting means for detecting the state of the
moving body, and the state detecting means. And music reproduction means for reproducing the
music data while controlling the music data distribution server, wherein the music data
distribution server Music data storage means stored in advance in which the reproduction
control parameters for each state of the moving body are associated, environmental information
receiving means for receiving the environmental information of the moving body from the
moving body, and the environmental information And selecting the music data to be reproduced
in the moving body, and reading the reproduction control parameter associated with the music
data from the music data storage means, and selecting the music data and the reproduction
control parameter. And a music file transmission means for transmitting the music file to the
mobile unit.
[0006]
In the present invention, the moving body further includes reproduction result information
transmitting means for acquiring reproduction result information of the music data reproduced
by the music reproduction means and transmitting the reproduction result information to the
music data distribution server, the music data The distribution server updates the music data
stored in the music data storage unit and the reproduction control parameter for each state of
the mobile based on the reproduction result information transmitted from the mobile.
Furthermore, it is characterized by having.
[0007]
The present invention is a music data distribution server for distributing music data to be
reproduced to a mobile, wherein the music data and reproduction control parameters for each
state of the mobile are for each environment information of the mobile. Music data storage
means related and stored in advance, state information receiving means for receiving
environmental information of the mobile from the mobile, music data to be reproduced on the
mobile according to the environmental information Music file generating means for selecting a
music file from the music data storage means by reading the reproduction control parameters
associated with the music data, and generating a music file comprising the music data and the
reproduction control parameters; And music file transmitting means for transmitting a music file
to the mobile unit.
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[0008]
The present invention comprises a moving body for reproducing music data, and music data
storage means in which the music data and reproduction control parameters for each state of the
moving body are associated for each environment information and stored in advance. A music
data distribution method in a music data distribution system comprising a music data
distribution server for distributing music data to the mobile object, wherein the mobile object is
an environmental information acquisition step for acquiring environment information of the
mobile object A music file receiving step of transmitting the environment information to the
music data distribution server, and receiving a music file including music data to be reproduced
from the music data distribution server and a reproduction control parameter at the time of
reproduction of the music data; A state detection step of detecting the state of the movable body,
and a state of the movable body detected by the state detection step. And a music reproduction
step of reproducing music data while controlling music reproduction based on the reproduction
control parameter attached, the music data distribution server receiving environment
information of the mobile from the mobile. According to the environmental information receiving
step, according to the environmental information, while selecting the music data to be
reproduced in the moving body, the reproduction control parameter associated with the music
data is read out from the music data storage means, A music file generation step of generating a
music file including the music data and the reproduction control parameter, and a music file
transmission step of transmitting the music file to the mobile object.
[0009]
According to the present invention, the music data and the reproduction control parameter for
each state of the moving body are associated and stored for each environment information, and
the music data to be reproduced according to the received environment information of the
moving body. As the music file consisting of the music data to be reproduced and the
reproduction control parameter is generated and transmitted to the moving body, the
reproduction control parameter associated with the music data is selected and selected. In the
body, music data selected according to the environment of the moving body can be reproduced,
and reproduction control is performed according to the state of the moving body. Therefore,
music to be reproduced according to changes in the position or moving state of the moving body
Can change.
Further, since the music data is distributed from the server, it is possible to autonomously
reproduce musical tones according to the vehicle state without preparing or preparing
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reproduction data in advance.
[0010]
Hereinafter, a music data delivery system according to an embodiment of the present invention
will be described with reference to the drawings.
FIG. 1 is a block diagram showing the configuration of the embodiment.
In the following description, music data is distributed to a vehicle (mobile body) by a music data
distribution system, and the music is reproduced in the vehicle.
In this figure, the code | symbol 1 is a music data delivery server (it only calls a server hereafter)
which delivers music data with respect to a mobile.
The code | symbol 2 is a motor vehicle (it calls a vehicle hereafter) which is a mobile body which
should deliver music data.
The code | symbol 3 is a terminal which edits the music data accumulate | stored in the server 1.
FIG. The code | symbol 4 is a communication network to which the server 1, the vehicle 2, and
the terminal 3 are connected, It is possible to perform mobile information communication
between the server 1 and the vehicle 2 and a mobile communication terminal (not shown).
[0011]
Reference numeral 11 denotes a music file generation unit that generates a music file to be
distributed to a mobile object such as a vehicle 2 or the like. The music file referred to here is a
data group to which reproduction control parameters necessary for reproducing the music data
are added to the music data. Reference numeral 12 is a music file database in which a plurality of
music file data are stored in advance. The code 13 acquires the reproduction result data of the
music file distributed from the moving body (here, the vehicle 2) which is the distribution
destination of the music file, and improves the music file to improve the music file configuration
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based on the reproduction result. It is a department. The code | symbol 14 is a transmission part
which transmits information with respect to another apparatus (here vehicle 2 and terminal 3)
via the communication network 4. FIG. Reference numeral 15 denotes a receiving unit that
receives information from another device via the communication network 4. In addition, although
the server 1 transmits / receives information between several vehicles 2 and several terminals 3
via the communication network 4, it is abbreviate | omitted in FIG.
[0012]
Reference numeral 21 denotes a control unit that generally controls the music data reproduction
operation in the vehicle 2. Reference numeral 22 denotes a music reproduction unit which
reproduces music data and causes the speaker 23 to sound. Reference numeral 24 denotes a
music file storage unit that stores music files received from the server 1. Reference numeral 25
denotes a selection unit for the passenger to select a desired music file from among the music
files stored in the music file storage unit 24. Reference numeral 26 denotes a driving information
sensor that detects the driving state of the vehicle (vehicle speed, engine speed, accelerator
opening degree, brake operation state, shift state, direction indicator state, etc.). The driving
information sensor 26 may input an output of each sensor provided in advance in the vehicle in
order to control the vehicle, instead of providing a new sensor. Reference numeral 27 denotes a
driving information acquisition unit that reads the detection value detected by the driving
information sensor 26 and acquires the current driving state of the vehicle 2. Reference numeral
28 denotes a vehicle information acquisition unit that acquires an environmental state of the
vehicle (vehicle position, time, weather, vehicle type, specification information of accessories,
etc.). For example, GPS (Global Positioning System), timer, sensor, information It consists of
memory etc. which are stored beforehand. Reference numeral 29 denotes a transmitter that
transmits information to another device (here, the server 1) via the communication network 4.
Reference numeral 30 is a receiver that receives information from another device via the
communication network 4. Reference numeral 31 denotes a reproduction result information
generation unit that generates performance information (reproduction result) of music data
reproduced in the vehicle 2 and transmits the result information to the server 1 via the
transmission unit 29.
[0013]
Next, the table structure of the music file database 12 shown in FIG. 1 will be described with
reference to FIG. The music file database 12 includes a distribution data table 121 in which
music data to be distributed is defined, a reproduction result table 122 in which reproduction
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record information (number of reproductions) is defined for each distributed music data, and
music to be distributed And a reproduction control data table 123 in which reproduction control
parameters for controlling the reproduction method are defined for each data.
[0014]
The distribution data table 121 is specified by time information (morning or afternoon) and
vehicle travel position information (around the sea, mountain areas, etc.) for each vehicle type of
the vehicle 2 (sedan, type of car type such as 1BOX and car name). A plurality of candidate
names of music data to be reproduced in a certain vehicle state are defined in advance. For
example, if the vehicle type 1 is traveling in the morning in the city, music candidate names 1 to
3 of music data to be reproduced are defined.
[0015]
The reproduction result table 122 is a reproduction result (reproduced in the reproduction
destination vehicle 2 for each candidate name of music data to be reproduced in the vehicle state
specified by time information and vehicle travel position information for each vehicle type The
information on the number of times is associated and stored. Although FIG. 3 shows only the
reproduction result table 122 associated with the music piece candidate names of car type 1,
morning, and city area, the reproduction result table for all the vehicle states defined in the
delivery data table 121 is shown. 122 are related.
[0016]
The reproduction control data table 123 is a reproduction location (for music data) for each
driving condition of the vehicle 2 for each candidate name of music data to be reproduced in the
vehicle condition specified by time information and vehicle travel position information for each
vehicle type. The reproduction start position and the reproduction end position) are related to
the reproduction control parameter (volume etc.). For example, in the case of reproducing the
music data specified in the reproduction location and the reproduction location for each driving
state (during idling etc.), for the candidate name 3 of the music composition delivered while
traveling in the city in the morning with car type 1 Reproduction control parameters suitable for
environmental information such as vehicle type are defined. Although FIG. 3 shows only the
reproduction control data table 123 associated with the candidate names 3 of the music
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delivered while traveling in the city in the morning with the vehicle type 1, it is defined in the
delivery data table 121. The reproduction control data table 123 is associated with all the music
piece candidate names.
[0017]
Next, operations of the server 1 and the vehicle 2 shown in FIG. 1 will be described with
reference to FIG. First, when the device in the vehicle 2 is powered on, the vehicle information
acquisition unit 28 acquires various information (vehicle type, time, traveling position, and the
like) of the vehicle 2 (step S1). Then, the vehicle information acquisition unit 28 determines
whether there is a change between the vehicle information acquired at the time of the previous
acquisition of vehicle information and the vehicle information acquired at this time or the vehicle
information acquired this time (step S2). ). As a result of the determination, if the power is turned
on, the vehicle information acquisition unit 28 transmits the acquired vehicle information to the
server 1 of the predetermined address via the transmission unit 29 (step S3). In addition, when
there is a change in the vehicle information acquired at the previous time and this time, the
vehicle information acquisition unit 28 transmits the vehicle information acquired this time to
the server 1 (step S3). The vehicle information includes vehicle identification information
(address information for performing information reception) that can uniquely identify the vehicle
2. And the vehicle side will be in a standby state.
[0018]
On the other hand, the music file generation unit 11 of the server 1 determines whether the
vehicle information transmitted from the vehicle 2 can be received through the reception unit 15,
and receives the vehicle information transmitted from the vehicle 2 (step S11) , S12). Then, when
the vehicle information transmitted from the vehicle 2 is received, the music file generation unit
11 refers to the distribution data table 121 of the music file database 12 and acquires the
candidate of music data to be distributed. For example, when the vehicle information transmitted
from the vehicle 2 is “traveling in the city in the morning with the vehicle type 1”, the music
file generation unit 11 acquires music candidate names 1 to 3 and specifies with the candidate
names Three music data (not shown) to be read out are read out from the music file database 12.
Then, the reproduction control data table 123 associated with the three music piece candidate
names 1 to 3 is read out from the music file database 12.
[0019]
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Next, the music file generation unit 11 relates each of the three reproduction control data tables
123 similarly read out from the music file database 12 to each of the three music piece data read
out from the music file database 12 and makes three music A file is generated (step S13). The
number of music files generated here is increased or decreased according to the number of
music candidate names defined in the distribution data table 121. Subsequently, the music file
generation unit 11 transmits the generated three music files to the vehicle 2 having the vehicle
identification information included in the received vehicle information (step S14).
[0020]
The music file is received by the receiver 30 of the vehicle 2 and stored in the music file storage
24 (step S4). On the other hand, when the music file is not transmitted from the server 1 and the
music file can not be received, the process returns to step S1 to repeat the processing. Here,
when there are a plurality of distributed music files, the passenger operates the selecting unit 25
to select a desired music file to be reproduced. When the music file to be reproduced is specified,
the control unit 21 acquires driving information indicating the current driving state from the
driving information acquisition unit 27 (step S6). Then, the control unit 21 reads out the
specified music file from the music file storage unit 24, separates the music data and the
reproduction control data table added to the music data, and internally holds the music data.
[0021]
Next, the control unit 21 refers to the reproduction control data table (the table corresponding to
the reproduction control data table 123 shown in FIG. 3) held internally, to the driving state
information acquired from the driving information acquisition unit 27. The playback start and
end points of the matching music data are acquired. Then, a part of the music data (hereinafter
referred to as a reproduction part) specified by the reproduction start / end part is output to the
music reproduction unit 22. At this time, the control unit 21 acquires, from the reproduction
control data table held internally, the reproduction control parameter matching the driving state
information and the reproduction part, and outputs the reproduction control parameter to the
music reproduction part 22. In response to this, the music reproduction unit 22 adjusts the
sound to be produced from the speaker 23 based on the reproduction control parameter (volume
and equalizer adjustment information) output from the control unit 21, and is outputted from the
control unit 21. The reproduced music data is reproduced (step S7). As a result, music selection
is performed according to the vehicle type, time, and travel location, and reproduction control is
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performed according to the current driving state to reproduce the music. The above operation is
repeated until the power is turned off (step S8).
[0022]
On the other hand, while the music reproduction unit 22 is reproducing music data, the
reproduction result information generation unit 31 internally holds the name of the music
reproduced by the music reproduction unit 22 and the number of times of reproduction. Then,
next, when vehicle information is transmitted to the server 1 in step S3, the reproduction result
information generation unit 31 transmits the music title and the number of times of reproduction
(reproduction record information) held therein to the server 1 Do. The music file improvement
unit 13 having received the reproduction record information stores the reproduction record
information in the reproduction record table 122. In addition, in the reproduction result table
122, reproduction result information from a plurality of vehicles 2 is accumulated. Further, the
music file improvement unit 13 instructs the music file generation unit 11 to select a music
candidate to be distributed with reference to the reproduction result table 122. In response to
this, when generating the music file in step S13, the music file generation unit 11 preferentially
selects a music candidate having a large number of reproductions according to the number of
reproductions stored in the reproduction record table 112. To do. By doing this, in the initial
stage, reproduction track record information is acquired from the plurality of vehicles of the
distribution destination for the ones that needed to transmit a plurality of music piece candidates
to be reproduced to the vehicle 2, Since music selection can be performed according to the
number of times of reproduction, optimum music selection can be performed. Note that the
reproduction result table 122 may be provided for each vehicle 2 and only reproduction result
information of its own vehicle may be used.
[0023]
Note that the reproduction performance information includes reproduction adjustment
information indicating that the passenger has performed adjustment of the volume and the
equalizer when the music reproduction unit 22 is reproducing music data based on the
reproduction control parameter. Or any environmental information from the time of
reproduction. The music file improvement unit 13 updates the reproduction control parameters
stored in the reproduction control data table 123 based on the reproduction adjustment
information, or the distribution data table 121 or the reproduction control data table 123 based
on the environment information. The contents of may be rewritten. As described above, the
reproduction status information is acquired from the distribution destination of the music file,
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and the information stored in the music file database 12 is updated based on the reproduction
status information, so that the optimum according to the vehicle status is obtained. It is possible
to provide various songs.
[0024]
Alternatively, the music file stored in the music file database 12 may be downloaded to the
terminal 3, the music file may be processed on the terminal 3, and the processed music file may
be uploaded to the server 1. By doing this, it is possible to process the music file distributed from
the server 1 according to the preference, and it is possible to optimize the music data of the
music selection candidate according to the vehicle state.
[0025]
In addition, the vehicle information transmitted from the vehicle 2 to the server 1 includes the
model number of the car, the year, the specification of the audio system (the distinction between
2CH and 4CH, whether it is high fidelity, the type of equalizer, changeable range etc. The driver's
personal information, companion information, driving purpose (commuting, work, leisure, travel,
etc.) etc. are included, and the distribution data table 121 contains these information and music
candidates to be distributed. It may be related.
[0026]
As described above, the music data distribution server 1 should store music data and
reproduction control parameters for each state of the vehicle in association with each other for
each environment information, and reproduce the data according to the received environment
information of the vehicle. The music data is selected, and the reproduction control parameter
associated with the music data is read out, and a music file including the music data to be
reproduced and the reproduction control parameter is generated and transmitted to the vehicle.
In the vehicle, the music data selected according to the environment of the vehicle is reproduced,
and the reproduction control according to the driving state is performed. Therefore, the music to
be reproduced is changed according to the change of the vehicle position or the traveling state. It
can be done.
Further, since the music data is distributed from the server, it is possible to autonomously
reproduce musical tones according to the vehicle state without preparing or preparing
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reproduction data in advance.
[0027]
For this reason, it is possible to create a world view in which the vehicle can be run to generate
music without making the driver tired. In addition, since the traveling state is expressed by music
that constantly changes, it is possible to always grasp what kind of driving state the vehicle is. In
addition, since the music generated by the musical tone generation device can be enjoyed, the
driving of the vehicle is further enhanced, and various additional information is transmitted to
the passenger along with the music, and the vehicle can be operated comfortably.
[0028]
In the above description, the case of being a vehicle as a distribution destination of the music file
according to the present invention has been described as an example, but the vehicle is not
limited to a car, and may be applied to a motorcycle or the like. Furthermore, it is applicable also
to a portable terminal with a route guidance function. That is, it is possible to apply the
specification of the means for reproducing the musical tone, the position detection of the self, etc.
in the moving body which can transmit to the server.
[0029]
It is a block diagram showing composition of one embodiment of the present invention. It is a
flowchart which shows operation | movement of the server 1 and the vehicle 2 which are shown
in FIG. It is explanatory drawing which shows the table structure of the music file database 12
shown in FIG.
Explanation of sign
[0030]
DESCRIPTION OF SYMBOLS 1 ... Server 11, 11 ... Music file generation part, 12 ... Music file
database, 13 ... Music file improvement part, 14 ... Transmission part, 15 ... Reception part, 2 ...
Vehicle 21 21 control unit 22 music reproduction unit 23 speaker 24 music file storage unit 25
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selection unit 26 driving information sensor 27 27 Driving information acquisition unit 28
Vehicle information acquisition unit 29 Transmission unit 30 Reception unit 31 Reproduction
result information generation unit 3 Terminal 4 Communication network
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