JP2004118152A - Bgm player, bgm play-back system and method for setting connection time to network - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a BGM player and a BGM play-back system which determine an approximate guide to a connection time in spite of a variation in the connection time of BGM players and surely evenly distribute connection times of each of the BGM players. <P>SOLUTION: The BGM player is provided with a time range storage means 42 wherein a time range 44 from a start time to an end time is prestored so that a time when each BGM player connects to a network 12 to receive an electronic mail 24 and/or download a content is in a range same for each of the BGM player within the time range 44, and a control means 30 reads out the time range 44 from the time range storage means 42 and performs such control that the BGM player connects to the network 12 to receive the electronic mail and/or download a content within the read-out time range 44. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a BGM reproduction system that provides a BGM player installed in a store with contents to be reproduced.
[0002]
[Prior art]
The outline of the BGM player will be described.
A BGM player is one of BGM devices installed in a store such as a supermarket and capable of reproducing contents such as music and images stored in a built-in storage unit during business hours of the store.
[0003]
Such a BGM player obtains the content by receiving in advance a recording medium (CD or the like) on which the content to be reproduced is recorded by an agency.
However, in recent years, a BGM player requesting content is connected directly to a terminal storing the content using a telephone line or the like to directly download the terminal, or a LAN or Internet to which a server storing the content is connected. A method has been established in which a BGM player requesting content is connected to the server and downloaded from a content storage server.
[0004]
Further, by transmitting an e-mail in which a processing command is described from a data transmitting device installed in an agency that provides BGM and manages the BGM player to a data receiving device (BGM player) in the store, A BGM playback system that connects a BGM player to a data transmission device to receive content has also been proposed (see Patent Document 1).
According to this, the data transmission device can control a plurality of BGM players by transmitting only one e-mail, so that the management of the BGM reproduction system can be facilitated and the operation cost can be reduced. There is.
[0005]
In a system such as that described in Patent Literature 1, a data transmission device attempts to transmit a plurality of e-mails to a plurality of BGM players at one time in order to save the trouble of e-mail transmission.
On the other hand, each of the BGM players connects to the network when a preset time has come, and receives a mail from a mail server (not shown) or downloads a content from a content storage server. Normally, midnight when the BGM player does not perform the reproducing operation is set as the connection time.
In such a case, a plurality of e-mails from the data transmission device side to the respective BGM players will arrive at the mail server almost at the same time. Therefore, the respective BGM players are connected in advance so as to connect to the network at substantially the same time. The time is set.
However, in this case, the load on the server at the connection destination and the load on the line temporarily increase, and there is a possibility that reception of an e-mail and downloading of contents may be hindered.
[0006]
Therefore, it has been considered to take measures such as setting the connection times by random number calculation so that the connection times of the BGM players to the network are not uniformly the same.
[0007]
[Patent Document 1]
JP 2001-282689 A (FIG. 15)
[0008]
[Problems to be solved by the invention]
If the time at which each BGM player connects to the network is set by a random number operation, the actual connection time cannot be predicted, so that the time at which the e-mail transmitted from the data transmission device actually arrives cannot be specified. Since a reproduction program or content is attached to the e-mail, it is not possible to determine the timing of the transmission of the e-mail from the data transmission device side, and it is difficult to manage a schedule such as creating a reproduction program. There was a problem that.
[0009]
Further, even if the connection time is set by the random number calculation, there is a bias in the calculation generated depending on the calculation formula of the random number calculation, so that the connection times of a plurality of BGM players may not be uniformly distributed.
[0010]
Therefore, the present invention has been made to solve the above-described problem, and an object of the present invention is to provide a measure of a certain connection time even when connection times of each BGM player are dispersed in connection of a plurality of BGM players to a network. It is another object of the present invention to provide a BGM player, a BGM playback system, and a connection time setting method that can determine the connection time and distribute the connection time without fail for each BGM player.
[0011]
[Means for Solving the Problems]
According to the present invention, the time for connecting to the network and receiving the e-mail and / or downloading the content is the time range consisting of the start time and the end time, and the BGM player has the same time for each BGM player. A time range storage unit in which a time range is stored in advance is provided so as to be located within a range such that the control unit reads the time range from the time range storage unit, and within the read time range, It is characterized in that it is controlled to connect to the network so as to receive an e-mail and / or download contents.
[0012]
By adopting this configuration, the time range is set so that the connection of the BGM player to the network is made in advance from a certain time to a certain time. Can be performed at a certain fixed time for the BGM player, which makes it easier to set up a schedule for sending e-mail.
[0013]
In addition, the present invention further includes a unique number storage unit that stores in advance a unique number assigned to each of the plurality of BGM players as a different number, wherein the control unit is configured to store the unique number from the time range storage unit. Reading the start time, reading the unique number from the unique number storage means, and setting the time shifted from the start time by a predetermined time from the start time to the network connection time based on the read unique number, so that the time is shifted from the start time. Calculating the dispersion time, adding the calculated dispersion time to the read start time, and storing the time obtained by addition in the planned connection time storage means as the planned connection time, Connect to the network when the scheduled connection time comes and receive the e-mail and / or download the content. And executes a step of performing load.
According to this configuration, the scheduled connection time of each BGM player to the network can be evenly distributed within the predetermined time range without deviation.
[0014]
The data transmitting apparatus further includes a time range changing unit that creates a command for changing a time range stored in the time range storage unit in the BGM player and attaches the command to an e-mail. The control means of the player changes the time range stored in the time range storage means based on a command for changing the time range attached to the electronic mail.
According to this, the time range once set (including the start time and the end time) can be easily changed without actually going to the store where the BGM player is installed.
[0015]
Further, in the method for setting the connection time of a BGM player to a network in a BGM playback system according to the present invention, the time for connecting to the network and receiving an e-mail is a time range consisting of a start time and an end time. Reading the start time from the time range storage means in which the time range is stored in advance so that each of the plurality of BGM players is located within the same range for each of the BGM players. Reading the unique number from the unique number storage means in which the unique number is stored in advance, based on the read unique number, in order to set a time shifted from the start time by a predetermined time as a connection time to the network, Calculating the dispersion time, which is the time shifted from the start time, The dispersion time by adding the, characterized in that it comprises a step of setting a time obtained by adding a connection scheduled time.
According to this method, even when a plurality of BGM players are connected to a network, transmission of an e-mail from the data transmission device can be performed to a plurality of BGM players at a certain time. The time can be set, and the scheduled connection time of each BGM player to the network can be evenly distributed without deviation within a predetermined time range.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a BGM playback system according to the present invention will be described in detail with reference to the accompanying drawings.
[0017]
First, terms used in this specification will be described.
The reproduction program is a control program that instructs the BGM player 16 to reproduce predetermined content at a predetermined time, and is a holiday, a business day, or a business day of a store where the BGM player 16 is installed. The date is set in advance for each day according to the difference between the special sale date and the non-sale date.
The content identifier refers to the name of the content storage server 28 in which the content is stored, the storage path to the content to be distributed to the BGM player 16, and the like.
[0018]
First, an outline of the BGM reproduction system 10 will be described with reference to FIG. FIG. 1 is an explanatory diagram showing a general configuration of a network capable of transmitting and receiving electronic mail.
The configuration of the BGM reproduction system 10 includes a plurality of stores 2a to 2d such as supermarkets and department stores, and an agent 4 that performs a task of providing content to each of the stores 2a to 2d, a maintenance task of the BGM player 16, and the like. I have. Here, it is assumed that one agency 4 provides content, performs maintenance work, and the like to a plurality of stores 2.
[0019]
One BGM player 16a to 16d is installed in each of the stores 2a to 2d. The operation of the BGM player 16 is controlled based on a reproduction program created by the agency 4, and plays back the content provided by the agency 4.
In the agency 4, a data transmission device 14 for transmitting a reproduction program or the like for setting the operation of the BGM player 16 is installed.
[0020]
On the Internet 12, which is an example of a network, a content storage server 28 storing contents to be distributed to the BGM player 16 and a mail server 20 for relaying an e-mail 24 transmitted from the data transmission device 14 to the BGM player 16 are provided. Has been.
The mail server 20 shown here has both functions of a receiving server (for example, a POP server) and a transmitting server (for example, an SMTP server), but the receiving server and the transmitting server may be separate. .
[0021]
Next, an internal configuration of the BGM player will be described with reference to FIG.
The BGM player 16 reproduces contents according to a schedule such as a control unit 30 operated by firmware or the like set in advance to control the operation of the entire player, a communication unit 32 for connecting to a communication line such as the Internet 12, a calendar, and the like. An order and the like are determined, a reproduction program storage means 34 for storing a reproduction program for controlling the control unit 30 so as to reproduce the content with the determined contents, a content storage means for storing a plurality of contents as digital data 36, a reproduction unit 38 including a D / A conversion circuit and an amplification circuit for D / A conversion of the content as digital data extracted from the content storage unit 36, and an internal unit connected to the control unit 30 to detect the current time. A clock 39 is provided.
[0022]
Further, a speaker 40 for reproducing the content as audio and a monitor device 41 for reproducing the content as video are connected to the reproducing means 38. The speaker 40 and the monitor device 41 may be provided integrally with the BGM player 16 or may be provided separately.
[0023]
In the BGM player 16, there is provided a time range storage means 42 in which a time range for connecting to the Internet 12 is set and stored in advance. The time range 44 includes a start time and an end time. In FIG. 2, the time range is from 0:00 to 3:00 as an example. The setting of the time range 44 may be performed in advance by the maker or the agency 4 at the time of manufacture or shipping, and delivered to the store 2.
In this way, the connection time at which each BGM player 16 connects to the Internet 12 can be set with a certain range.
[0024]
It should be noted that the time range 44 can be changed by the agency 4.
Specifically, a command for changing the time range 44 is described in the e-mail 24, and the control unit 30 of the BGM player 16 that has received the e-mail 24 sends the time range 44 in accordance with the command for changing the time range 44. The contents in the storage means 42 are automatically changed.
[0025]
Further, a unique number storage means 46 is provided in the BGM player 16.
The unique number is a unique number assigned to each of the plurality of BGM players 16, and assigned to each BGM player with a different number so that the same number is not duplicated. Have been.
As a specific example of the unique number, a MAC address (Media Access Control address) or a serial number can be adopted. Note that the MAC address is a number required for performing data communication, and is a unique number previously assigned to an Ethernet (registered trademark) card included in the communication unit 32, and is an Ethernet (registered trademark). A different number is assigned to each card.
[0026]
Next, the basic operation of the BGM player 16 will be described.
The BGM player 16 connects to the Internet 12 and receives the e-mail 24 from the communication unit 32 at a predetermined time within the time range 44.
The control unit 30 of the BGM player 16 reads the identifier of the content described in the received e-mail 24, connects to the content storage server 28, downloads the content described in the e-mail 24 from the content storage server 28, It is stored in the content storage means 36.
Further, the control unit 30 causes the reproduction program storage means 34 to store the reproduction program described in the e-mail in order to execute the content.
[0027]
The control unit 30 reads out and executes the reproduction program from the reproduction program storage means 34 when the time specified by the reproduction program is reached based on the current time by the internal clock 39. As a result, the control unit 30 reads the content described in the reproduction program from the content storage unit 36 and controls the content to be reproduced in the order described in the reproduction program.
[0028]
Next, FIG. 3 shows an example of e-mail contents sent by the data transmission device 14.
The e-mail 24 is divided into two areas by a boundary (indicated by “****”) as an example.
The header 50, which is the first area, includes the name of the data transmission device 14 that is the distribution source of the e-mail, the name of the BGM player 16 that is the distribution destination, and the transmission date (not described here. , And transmission time are normally included).
In the second area, a mail text 51 is described. In the present embodiment, the mail text 51 corresponds to a reproduction program for the BGM player 16.
[0029]
The reproduction program will be described.
In FIG. 3, two reproduction programs A and B are described in one e-mail.
A part 52 of the first three lines indicates to the BGM player 16 a part 54 indicating a content name to be downloaded and an identifier of the content (a stored server name and path), and a recording destination of the downloaded content. And the portion 55 that is included.
The fourth line from the top is a date portion 56 for reproducing the content.
The portion 57 of the last three lines from the fifth line to the seventh line from the top is a portion for instructing when and what program the BGM player 16 reproduces. The instruction here indicates not a content name but a path of a recording destination (content storage means 36 composed of a hard disk drive or a semiconductor storage device) in the BGM player 16 in which the corresponding content is stored.
[0030]
Next, the configuration and operation of the data transmission device 14 in the agency 4 will be described with reference to FIG.
The data transmission device 14 includes a control unit 60 including a CPU and a memory, a storage unit 62 such as a hard disk drive, a communication unit 64 connected to a communication network such as the Internet 12 for transmitting and receiving data, a monitor device 65, and the like. It can be constituted by a general personal computer provided.
In the data transmitting apparatus 14 of the present invention, a mail transmitting unit 66 capable of transmitting the electronic mail 24 to the BGM player 16 is provided.
As a specific example of the mail transmitting unit 66, application software for creating, transmitting and receiving electronic mail, and storing and managing received electronic mail is stored in the storage unit 62 in advance, and is read out under the control of the control unit 60. Operation. Such software may be included in a web browser, or may operate alone.
[0031]
The data transmission device 14 is provided with a time range changing unit 68 that creates a command for changing the time range 44 in the BGM player 16 and describes or attaches the created command to the e-mail 24.
The time range changing unit 68 is provided so as to be realized by the control unit 60 executing a predetermined control program. The time range changing means 68 can arbitrarily change the time range by operating the data transmission device 16 by the worker on the proxy point 4 side.
[0032]
Next, a method for setting the scheduled connection time of each BGM player 16 to the Internet 12 according to the embodiment of the present invention will be described.
The connection to the network 12 is such that each of the BGM players 16a to 16d is connected at a different time, and the scheduled connection time does not vary for each BGM player, but rather is located within a predetermined time range (from what time to what time). It is necessary to set up to connect between). Therefore, it is preferable that this time range be the same for each BGM player 16.
By connecting the plurality of BGM players 16 at different times in this way, it is not necessary to apply an excessive load to the mail server 20, the content storage server 28, and the line to which the BGM players 16 are connected.
Also, by keeping the scheduled connection time within a predetermined time range without completely varying each of the BGM players 16, the data transmitting apparatus 14 can transmit a plurality of e-mails for each of the BGM players 16 at different times. Since it is not necessary to send the information to
The scheduled connection time is a time obtained by adding the distribution time to the start time of the time range. The start time is 0:00, for example, if the time width of the scheduled connection time is from 0:00 to 3:00. Such time width, start time and end time are set in advance, but can be changed later.
Also, by setting the distribution time to be different for each BGM player, the scheduled connection time can be dispersed for each BGM player within a predetermined time width. In calculating the dispersion time, a unique number assigned to each BGM player with a different number is used.
[0034]
First, as an example of an arithmetic expression for calculating the dispersion time, the following expression is given. Here, a case where a MAC address is used as an example of the unique number will be described.
[0035]
(Equation 1)
Dispersion time = {MAC address lowest value + (30 × MAC address lowest value)} / (60 × time width) remainder
Next, an arithmetic expression for calculating the scheduled connection time using the distribution time calculated by the above Expression 1 is shown below.
[0037]
(Equation 2)
Scheduled connection time = start time of time width + dispersion time
Next, an example of a method of actually calculating the scheduled connection time using the above-described two arithmetic expressions will be described with reference to FIG.
First, the control unit 30 of the BGM player 16 reads the unique number stored in the unique number storage unit 46. In this embodiment, the lowest value of the MAC address is read as a unique number. The lowest value of the MAC address is 1 byte, which is a number from 0 to 255 in decimal. Here, it is assumed that the unique number is 165 as an example.
[0039]
Subsequently, the control unit 30 reads the time width of the time range 44 from the time range storage unit 42. In this embodiment, since the start time is 0:00 and the end time is 3:00, the time width is 3 hours.
The control unit 30 calculates the value by substituting the read unique number and the time width into the above equation (1). In this embodiment, a numerical value of 75 is calculated. This means that a time obtained by adding 75 minutes to the start time is set as the scheduled connection time.
[0040]
Next, the control unit 30 calculates the scheduled connection time by adding the distributed time calculated by the expression 1 to the start time read from the time range storage unit 42 based on the expression 2.
In this embodiment, since the start time is 0:00, the scheduled connection time is calculated as 1:15.
As described above, since the plurality of BGM players 16 calculate the scheduled connection time to the network based on the unique values, the scheduled connection times can be reliably dispersed.
[0041]
In the above-described embodiment, the content of the BGM player 16 is obtained by downloading the content from the content storage server 28.
In this way, traffic is not congested, and even if the number of BGM players 16 increases, congestion of the transmission path from the data transmitting device 14 to the Internet 12 can be reduced.
However, if the data transmission device 14 and the BGM player 16 are connected by a large-capacity line, the content is attached to the e-mail 24 from the data transmission device 14 and directly delivered to the BGM player 16. It may be. In such a case, there is no need to describe the content identifier in the e-mail 24.
[0042]
Further, the arithmetic expression for calculating the dispersion time is not limited to the above-described Expression 2, and another arithmetic expression may be employed.
[0043]
As described above, various preferred embodiments of the present invention have been described. However, the present invention is not limited to the above-described embodiments, and it is needless to say that many modifications can be made without departing from the spirit of the invention. It is.
[0044]
【The invention's effect】
According to the present invention, the time for receiving an e-mail and / or downloading content by connecting to a network is a time range including a start time and an end time, and is the same for each BGM player. The time range storage means in which the time range is stored in advance is provided, and the control means in the BGM player reads the time range from the time range storage means, and within the read time range, Is controlled to receive an e-mail and / or download a content, so that the transmission of the e-mail from the data transmitting apparatus can be performed to a plurality of BGM players at a certain fixed time. This makes it possible to easily manage the schedule for sending e-mails at the agency, which is a significant effect.
[0045]
The BGM player further includes a unique number storage unit that stores in advance a unique number assigned to each of the plurality of BGM players as a different number, and the control unit determines the start time from the time range storage unit. Reading the unique number from the unique number storage means, and setting the time shifted from the start time by a predetermined time based on the read unique number as the connection time to the network. Calculating the time, adding the calculated dispersion time to the read start time, and storing the time obtained by the addition in the planned connection time storage means as the planned connection time; Connect to the network to receive e-mail and / or download the content Since performing step, a connection scheduled time to each BGM player network can be no uniform dispersion deviation in time a predetermined range. For this reason, a plurality of BGM players do not connect to the network at the same time, and the server load and the line load can be reduced.
[0046]
Further, the data transmission device includes a time range changing unit that creates a command for changing the time range stored in the time range storage unit in the BGM player and attaches the command to an electronic mail, and controls the BGM player. The means changes the time range stored in the time range storage means based on the command for changing the time range attached to the e-mail, so that the time range once set (including the start time and the end time, ) Can be easily changed without actually going to the store where the BGM player is installed, so that both the agency worker and the store-side operator who operates the BGM player can save time and effort.
[0047]
Further, according to the method for setting the connection time of a BGM player to a network according to the present invention, even when a plurality of BGM players are connected to the network, transmission of an e-mail from the data transmission device side to the plurality of BGM players is performed. Also, a time that can be set to a certain fixed time can be set, and the management of the transmission schedule of the e-mail of the data transmission device becomes easy. In addition, the scheduled connection time of each BGM player to the network can be evenly distributed without deviation within a predetermined time range.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an overall configuration of a BGM reproduction system according to the present invention.
FIG. 2 is an explanatory diagram showing an internal configuration of a BGM player.
FIG. 3 is an explanatory diagram showing an example of a reproduction program.
FIG. 4 is an explanatory diagram showing an internal configuration of the data transmission device.
FIG. 5 is an explanatory diagram showing a method of setting a scheduled connection time to a network.
[Explanation of symbols]
2 store 4 agency 10 BGM reproduction system 12 network (Internet)
14 Data transmission device 16 BGM player 20 Mail server 24 E-mail 28 Content storage server 30, 60 Control unit 32, 64 Communication unit 34 Playback program storage unit 36 Content storage unit 38 Playback unit 39 Internal clock 40 Speaker 41, 65 Monitor unit 42 Time range storage means 44 time range 46 unique number storage means 50 header 51 mail body 62 storage means 66 mail transmission means 68 time range change means

Claims (9)

A plurality of BGM players connected to a network and for reproducing a plurality of contents based on a predetermined reproduction program;
A content storage server that is connected to the network so as to be communicable with the BGM player, and stores content to be played back in the BGM player in advance;
The network is connected to the BGM player so as to be communicable with the BGM player, and transmits an e-mail to the BGM player in which the reproduction program and an identifier of a content to be reproduced based on the reproduction program are described. A data transmission device for providing content to the BGM player, the device having an e-mail transmission means,
The BGM player downloads necessary content from the content storage server based on the content identifier described in the e-mail received from the data transmission device, stores the required content in the content storage unit, and writes the content in the e-mail. BGM playback, wherein the playback program stored in the playback program storage means is read, and the playback program is read from the playback program storage means and executed to control the playback of the downloaded content. In the BGM player in the system,
The time for connecting to the network and receiving the e-mail and / or downloading the content is within a time range consisting of a start time and an end time, which is the same for each BGM player. A time range storage means in which the time range is stored in advance,
The control means includes:
BGM which reads out the time range from the time range storage means, and controls to receive the electronic mail and / or download the content within the read time range by connecting to the network. Player. A plurality of BGM players connected to a network and for reproducing a plurality of contents based on a predetermined reproduction program;
The network is connected to the BGM player so as to be able to communicate with the BGM player, and the content to be played back by the BGM player is stored in advance, and the BGM player is to be played back based on the playback program and the playback program. A data transmission device having an e-mail transmission means for transmitting an e-mail in which a content identifier is described,
The BGM player stores the playback program and the content attached to the e-mail received from the data transmission device in a playback program storage unit and a content storage unit, and executes the playback program. In a BGM player in a BGM reproduction system provided with control means for controlling the reproduction of the content,
The time range is set so that the time for connecting to the network and receiving the e-mail is within a time range consisting of a start time and an end time and is the same for each BGM player. Time range storage means in which is stored in advance is provided,
The control means includes:
A BGM player which reads a time range from the time range storage means and controls to connect to the network and receive the e-mail within the read time range. A unique number storage means for storing in advance a unique number assigned to each of the plurality of BGM players as a different number,
The control means includes:
Reading a start time from the time range storage means,
Reading a unique number from the unique number storage means,
Calculating a dispersion time that is a time shifted from the start time in order to set a time shifted from the start time by a predetermined time as a connection time to the network based on the read unique number;
Adding the calculated dispersion time to the read start time, and storing the time obtained by the addition as a scheduled connection time in the scheduled connection time storage means; 3. The BGM player according to claim 1, wherein the BGM player executes a step of receiving the electronic mail and / or downloading the content. A plurality of BGM players connected to a network and for reproducing a plurality of contents based on a predetermined reproduction program;
A content storage server that is connected to the network so as to be communicable with the BGM player, and stores content to be played back in the BGM player in advance;
The network is connected to the BGM player so as to be communicable with the BGM player, and transmits an e-mail to the BGM player in which the reproduction program and an identifier of a content to be reproduced based on the reproduction program are described. A data transmission device for providing content to the BGM player, the device having an e-mail transmission means,
The BGM player downloads necessary content from the content storage server based on the content identifier described in the e-mail received from the data transmission device, stores the required content in the content storage unit, and writes the content in the e-mail. BGM playback, wherein the playback program stored in the playback program storage means is read, and the playback program is read from the playback program storage means and executed to control the playback of the downloaded content. In the system,
In each of the BGM players,
The time for connecting to the network and receiving the e-mail and / or downloading the content is within a time range consisting of a start time and an end time, which is the same for each BGM player. A time range storage means in which the time range is stored in advance,
The control means includes:
BGM which reads out the time range from the time range storage means, and controls to receive the electronic mail and / or download the content within the read time range by connecting to the network. Reproduction system. A plurality of BGM players connected to a network and for reproducing a plurality of contents based on a predetermined reproduction program;
The network is connected to the BGM player so as to be able to communicate with the BGM player, and the content to be played back by the BGM player is stored in advance, and the BGM player is to be played back based on the playback program and the playback program. A data transmission device having an e-mail transmission means for transmitting an e-mail in which a content identifier is described,
The BGM player stores the playback program and the content attached to the e-mail received from the data transmission device in a playback program storage unit and a content storage unit, and executes the playback program. In a BGM reproduction system provided with control means for controlling the reproduction of the content,
In each of the BGM players,
The time range is set so that the time for connecting to the network and receiving the e-mail is within a time range consisting of a start time and an end time and is the same for each BGM player. Time range storage means in which is stored in advance is provided,
The control means includes:
A BGM reproduction system, wherein a time range is read from the time range storage means, and control is performed such that the electronic mail is received by connecting to the network within the read time range. The BGM player includes a unique number storage unit that previously stores a unique number assigned as a different number to each of the plurality of BGM players,
The control means of the BGM player includes:
Reading a start time from the time range storage means,
Reading a unique number from the unique number storage means,
Calculating a dispersion time that is a time shifted from the start time in order to set a time shifted from the start time by a predetermined time as a connection time to the network based on the read unique number;
Adding the calculated dispersion time to the read start time, and storing the time obtained by the addition as a scheduled connection time in the scheduled connection time storage means; The BGM reproduction system according to claim 4 or 5, wherein a step of receiving the electronic mail and / or downloading the content is executed by connecting to a BGM. The data transmission device,
A time range changing means for creating a command for changing a time range stored in the time range storage means in the BGM player and attaching the command to an e-mail;
The control means of the BGM player includes:
7. The BGM reproducing system according to claim 4, wherein the time range stored in the time range storage unit is changed based on a command for changing the time range attached to the electronic mail. A plurality of BGM players connected to a network and for reproducing a plurality of contents based on a predetermined reproduction program;
A content storage server that is connected to the network so as to be communicable with the BGM player, and stores content to be played back in the BGM player in advance;
The network is connected to the BGM player so as to be communicable with the BGM player, and transmits an e-mail to the BGM player in which the reproduction program and an identifier of a content to be reproduced based on the reproduction program are described. A data transmission device for providing content to the BGM player, the device having an e-mail transmission means,
The BGM player downloads necessary content from the content storage server based on the content identifier described in the e-mail received from the data transmission device, stores the required content in the content storage unit, and writes the content in the e-mail. BGM playback, wherein the playback program stored in the playback program storage means is read, and the playback program is read from the playback program storage means and executed to control the playback of the downloaded content. A method of setting a connection time of a BGM player to a network in the system,
The time for receiving the electronic mail and / or downloading the content by connecting to the network is located within a time range including a start time and an end time, which is the same for each BGM player. Reading the start time from the time range storage means in which the time range is stored in advance,
Reading a unique number from a unique number storage unit that stores in advance a unique number assigned to each of the plurality of BGM players as a different number;
Calculating a dispersion time that is a time shifted from the start time in order to set a time shifted from the start time by a predetermined time as a connection time to the network based on the read unique number;
A method for setting a connection time to a network, comprising: adding a calculated dispersion time to the read start time, and setting a time obtained by the addition as a scheduled connection time. A plurality of BGM players connected to a network and for reproducing a plurality of contents based on a predetermined reproduction program;
The network is connected to the BGM player so as to be able to communicate with the BGM player, and the content to be played back by the BGM player is stored in advance, and the BGM player is to be played back based on the playback program and the playback program. A data transmission device having an e-mail transmission means for transmitting an e-mail in which a content identifier is described,
The BGM player stores the playback program and the content attached to the e-mail received from the data transmission device in a playback program storage unit and a content storage unit, and the BGM player executes the playback program. A method for setting a connection time of a BGM player to a network in a BGM playback system, wherein a control unit for controlling the content to be played back is provided,
The time range is set so that the time for connecting to the network and receiving the e-mail is within a time range consisting of a start time and an end time and is the same for each BGM player. Reading the start time from the time range storage means stored in advance,
Reading a unique number from a unique number storage unit that stores in advance a unique number assigned to each of the plurality of BGM players as a different number;
Calculating a dispersion time that is a time shifted from the start time in order to set a time shifted from the start time by a predetermined time as a connection time to the network based on the read unique number;
A method for setting a connection time to a network, comprising: adding a calculated dispersion time to the read start time, and setting a time obtained by the addition as a scheduled connection time.

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