KR20040080545A - Central control type accompaniment system using local server and of service thereof - Google Patents

Abstract

PURPOSE: A central control typed Karaoke system using a local server and a service method thereof are provided to offer a service of the Karaoke data through a central server without interrupt when the service offered from an ISP(Internet Service Provider) is disabled by hacking, virus, and bad connection, or the local server is failed. CONSTITUTION: The central server(30) is connected to the local servers(40) having an intelligent contents distributing function for downloading only the added or modified part of a music file and periodically updating an image file. A set-top box(20) includes a server selector having an intelligent traffic rerouting function to select an optimal service path depending on the failure of the central/local server as well as a connection state of the Internet network. The central server includes a server certification part(60) assigning certification information to each local server, storing the certification information in a server management database(60a), and deciding the operation of the local server through the stored certification information.

Description

Central control accompaniment system using local server and its service method

The present invention relates to an accompaniment system (karaoke system) using a high-speed Internet network (eg, ADSL, PSDN, B-ISDN, ATM, etc.), and in particular, an online central server that provides accompaniment data (video, audio, lyrics). Intelligent traffic rerouting that has local server that provides accompaniment data by region and central server and local server selects optimal service path according to connection status of high-speed internet network and failure of central and local servers. By connecting an intelligent set top box (STB) dedicated to the accompaniment system with a rerouting function, when the operation button on the set top box and the user's selection number are inputted, the authentication process of the set top box as well as the accompaniment data service In the case of poor connection to the high-speed internet network or failure of the local server, the accompaniment data service is provided through the central server. Centralized provide such accompaniment system using a local server which allows a service of accompaniment data can more effectively manage and minimize the overload applied to the central server and to the service method.

Currently, the accompaniment system provided offline, such as hotels and condominiums, as well as karaoke bars, takes a one-to-one installation method in which one half cycle is installed in one room. This was taken excessively.

In addition, when a new product is released due to the change of sound and image technology due to the development of high-tech industry, the company operating the accompaniment system had to continuously change to a new half-cycle to increase the service satisfaction of users. This soon followed the closing of the burden on the businesses.

In addition, the conventional accompaniment system has a large number of accompaniment data is stored and managed in one half period, when the latest song occurs, it is inconvenient to newly input it in the half cycle, as well as additional costs incurred by the input. There was considerable difficulty in maintaining one half cycle.

In addition, in the conventional accompaniment system, the image of the accompaniment data and the text and sound are separated from each other so that the background image displayed on the half-cycle monitor often does not coincide with the sound. .

That is, in the case of the background image displayed through the monitor of the half-cycle, it is not stored in the half-cycle but is displayed on the screen of the monitor through a CD or tape, so that the displayed background image is limited to support only a limited image. This did not match the sounds of the various genres (eg ballads, dances, pop songs, nursery rhymes, etc.) output through half cycles.

Therefore, the applicant of the present application filed on December 20, 2002 "centralized accompaniment system using a high-speed Internet network and its service method (Patent Application No. 2002-81518)" to solve the above conventional problems, the present invention It is an improvement patent of this.

That is, the present invention includes an online central server providing accompaniment data (video / sound / lyrics) and a local server providing the accompaniment data by region, and the central server and the local server are connected to a high-speed internet network as well. By connecting the intelligent set-top box dedicated to the accompaniment system with intelligent traffic rerouting function to select the optimal service route according to the failure of the central and local servers, the operation button on the set-top box and the user's selection number input When this is done, the authentication process of the set-top box as well as the accompaniment data service is first performed by the local server, but the service provided by the Internet access service provider (ISP) is disabled by hacking and other viruses, or by a bad connection or local server. In the event of a malfunction of the accompaniment data through the central server to ensure that Using a local server that manages its services more effectively intended to provide a central controlled system and accompaniment service method.

In addition, the present invention, by setting the intelligent content distribution function to download only the added and changed music files of the accompaniment data from the central server to the local server and periodically update the image files, the operation button on the set-top box Distribution of accompaniment data such as reducing the network traffic between the central server and the local server according to the provision of accompaniment data (video and music files) corresponding to the selection number when the accompaniment data is input. It includes the purpose of doing more intelligently.

In addition, the present invention includes the object of reducing the set-top box authentication service load of the central server by delegating the authentication procedure of the set-top box to the local server.

1 is a schematic diagram of a centralized accompaniment system using a local server according to an embodiment of the present invention.

2 is a block diagram of a central server included in the centralized accompaniment system according to an embodiment of the present invention.

3 is a block diagram of a local server included in a centralized accompaniment system according to an embodiment of the present invention.

Figure 4 is a block diagram of an intelligent set-top box included in the centralized accompaniment system in one embodiment of the present invention.

Figure 5 is a flow chart showing the authentication procedure of the local server by the central server in one embodiment of the present invention.

FIG. 6 is a flowchart illustrating a search for a local server and a service request flow of accompaniment data according to an embodiment of the present invention.

7 is a flow chart of the accompaniment data service by the local server according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10; Remote control 20; Set top box

21; STB operation button 30; Central server

40; Local server 41; Local data transmitter and receiver

42; Local membership management DB 43; Local STB Certificate

44; Local accompaniment data DB 45; Local Selection

46; Service request unit 50; Server Selection

60; Server authentication unit 100; TV

200; Sound system

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic configuration diagram of a centralized accompaniment system using a local server according to an embodiment of the present invention, Figure 2 is a configuration diagram of a central server included in the centralized accompaniment system according to an embodiment of the present invention.

3 is a configuration diagram of a local server included in a centralized accompaniment system according to an embodiment of the present invention, and FIG. 4 is a configuration diagram of an intelligent set-top box included in a centralized accompaniment system according to an embodiment of the present invention.

1 to 4, selection numbers of accompaniment data to provide accompaniment data to the TV 100 and the acoustic system (eg, a microphone, a speaker, and an amplifier) 200 provided at a home as well as a company as well as a business. Remote control 10 for inputting, and having the STB operation button 21 to receive the accompaniment number signal of the remote control 10, but receives the accompaniment data through the high-speed Internet network, as well as a dedicated set-top accompaniment system The box (STB) 20, the TV 100 and the sound system 200 to provide the image and lyrics information as well as the sound information in real time through the high-speed Internet and the set-top box 20 online In the centralized accompaniment system comprising a central server 30 that is built in and stores and manages accompaniment data (video / sound / lyrics),

The central server 30 divides and connects a plurality of local servers 40 having an intelligent content distribution function so as to download only the added and changed parts of the accompaniment data and periodically update the image files.

In the set-top box 20, the server selection unit 50 of the intelligent traffic rerouting function to select an optimal service path according to the failure state of the central server 30 and the local server 40 as well as the connection state of the high-speed Internet network. ,

The central server 30 is provided with authentication information (eg, ID information of the local server) to the local server 40 divided by region, and stored in the server management DB 60a, as well as the local server through the stored authentication information. It characterized in that it further comprises a server authentication unit 60 for determining the operation of 40).

According to another aspect, the local server 40,

Local data transmission and reception unit 41 for receiving the signal of the authentication number and selection number of the three-top box 20 through the high-speed Internet network, as well as receiving the accompaniment data from the central server (30) to the three-top box (20) ),

Local member management DB 42 for storing and managing information about the user of the set-top box 20,

When the authentication number is received through the local data transmission / reception unit 41, the local STB authentication unit 43 searches the local member management DB 32 to determine the received authentication number;

From the request of the service request unit 46 to be described later, the accompaniment data provided by the central server 30, only the addition and change of music files are downloaded and the image files are periodically updated and stored local accompaniment data DB (44) ),

When the signal of the music selection number is received through the local data transmission / reception unit 41, the accompaniment data corresponding to the music selection number is read, and the set-top box 20 connected to the high-speed internet network through the local data transmission / reception unit 41. Local selection section 45 to be transmitted to,

After checking the output time of the accompaniment data through the local data transmission / reception unit 41, the checked information is transmitted to the central server 30 as well as the search result selection number of the local selection unit 45. If there is no accompaniment data service request unit 46 for requesting information of the accompaniment data to the central server (30); It was to include.

Here, the set-top box 20 basically has an interface unit 22, a remote control receiver 23, an accompaniment data receiver 24, a multiplexer 25, a graphic processor 26, a sound processor 27, and a D / A. The converter 28 and the controller 29 are included.

The central server 30 is basically a data receiver 31, member management DB 32, STB authentication unit 33, accompaniment data DB 34, data output unit 35, selection section 36, service The bill settlement unit 37 and the data management unit 38 are included.

The service charge settlement unit 37 basically includes a time check size 37a, a checker 37b, and a settlement DB 37c.

The data management unit 38 basically includes a counter 38a, a count DB 38b, and a data deleter 38c.

On the other hand, Figures 5 to 7 show a flow chart showing a service method of the accompaniment data implemented by the centralized accompaniment system using a local server of the embodiment of the present invention, the progress step,

The image file included in the accompaniment data after the central server 30 grants the authentication information for determining the operation of the server to the local server 40 divided by region, as well as the authentication information of the set-top box 20 included in the region. Periodically updating the local server 40;

Searching the local server 40 which has undergone the authentication procedure when the STB operation button 21 of the set-top box 20 distributed by region is turned on by the user;

When the local server 40 that has undergone the authentication result is found, the authentication information of the set-top box 20 is transmitted to the local server 40 as well as the selection number of the accompaniment data selected by the user. Switching network connection to 30 to transmit authentication information of the set-top box 20 as well as selection number of accompaniment data selected by the user;

Retrieving the accompaniment data corresponding to the music selection number from the local accompaniment data DB 44 after determining the authentication information transmitted from the set-top box 20 by the local server 40;

Transmitting accompaniment data to the set-top box 20 through a high-speed internet network when there is accompaniment data corresponding to a selection number in the local accompaniment data DB 44;

If there is no accompaniment data corresponding to the search result, the local server 40 requests the information of the accompaniment data to the central server 30, downloads the music files of the added and changed parts of the accompaniment data, and then sends them to the set-top box 20. Transmitting;

When selecting the new accompaniment data when the display of the accompaniment data is finished, repeating the above steps, and when the service of the accompaniment data is terminated, the service fee of the accompaniment data transmitted to the set-top box 20 is settled. Transmitting the information to the central server 30 after the local server 40 counts the output time; Characterized in proceeding to.

According to another aspect, the service request of the accompaniment data by the set-top box 20,

The local server 40 is to be made in response to the initial, and if the service request fails because there is no response of the local server 40 further comprises the step of switching the service request to the central server 30 .

According to another aspect,

When the service of the accompaniment data requested by the set-top box 20 is interrupted by external factors while the service is performed from the local server 40, the service is automatically switched to the central server 30. It is characterized by including.

According to another aspect, if there is a response from the local server 40 service is stopped, the service of the accompaniment data further comprises the step of automatically switching from the central server 30 to the local server 40 do.

According to another aspect, the central server 30 releases the authentication of the local server 40 located in a specific region among the plurality of local servers 40 divided by regions, and by the deactivated local server 40. It is characterized in that it further comprises the step of the service disabled state that the service request of the accompaniment data is disabled by deactivating all set-top boxes 20 serviced.

According to another aspect, the authentication information of the set-top box 20 granted from the central server 30 to the local server 40 includes a control code to disable the service request by the specific set-top box 20 It is characterized by.

Referring to Figures 1 to 7 attached to the operation of an embodiment of the present invention configured as described above are as follows.

First, a sound system 200 including a conventional TV 100, a microphone, a speaker, and an amplifier is established in a home or a company as well as a business, and then, as well as operation control of the TV 100 and the sound system 200. A remote controller 10 for inputting a selection number of accompaniment data is provided.

On-line, in accordance with the signal of the selection number transmitted from the remote control unit 10 provides the image information of the lyrics and background to the screen of the TV 100 in real time through the set-top box 20, and to the sound system 200 To build a central server 30 to store and manage the accompaniment data (video / sound / lyrics) to provide sound information.

In addition, the above-mentioned online server is divided into a plurality of local server 40 having an intelligent content distribution function so that only the music file of the accompaniment data is added and changed, and the image file is periodically updated. 30).

At this time, the central server 30 grants authentication information for determining whether the server is operating or not, to the local server 40 divided by region, as well as authentication information of the set-top box 20 included in the region.

In this case, the authentication information of the set-top box 20 which the central server 30 grants to the local server 40 includes a control code for disabling the service request by the specific set-top box 20, which is the central server. The release was made possible only by (30).

In addition, the central server 30 may release the authentication of the local server 40 located in a specific region of the plurality of local servers 40 divided by regions through the server authentication unit 60, as described above. When the authentication of the local server 40 is released, all of the set-top boxes 20 serviced by the local server 40 are also released at the same time.

Accordingly, the set-top box 20 is switched to the service unavailable state where the service request of the accompaniment data is impossible, and this service unavailable state is released again when the local server 40 is authenticated by the central server 30.

In addition, while connected to the TV 100 and the sound system 200 to receive the selection number signal of the remote controller 10, the connection to the central server 30 or the local server 40 through the high-speed Internet network is optional In addition to having the STB operation button 21, the set-top box 20 dedicated to the intelligent accompaniment system, which has been assigned a certification number, is provided to the user (eg, the general public, karaoke business owner, hotel manager, condominium manager, etc.).

Then, the user connects the provided set-top box 20 to the TV 100 and the acoustic system 200, and then accesses the central server 30 or the local server 40 through a computer to obtain a list of accompaniment data. Download it and print it.

Here, in the local accompaniment data DB 44 of the local server 40, when the release is made for each region, the base image is stored and then continuously updated, so that the accompaniment data service by the local server 40 is made. When the network bandwidth requirement with the central server (30) to reduce as much as possible.

Thereafter, the user supplies power to the TV 100, the acoustic system 200, and the set top box 20, and then turns on the STB operation button 21 provided in the set top box 20.

Then, the set-top box 20 is booted from the ON operation of the STB operation button 21, and at the same time, the server selection unit 50 of the intelligent traffic rerouting function built in the set-top box 20 is performed. Searches for the local server 40 that went through the authentication procedure.

At this time, when the local server 40 that has undergone the above search result authentication procedure is searched, the interface unit 22 built in the set-top box 20 is connected to the local server 40 through a high-speed Internet network. Simultaneously with the connection, the interface unit 22 transmits the authentication number of the set-top box 20 to the local data transmitting and receiving unit 41 of the local server 40.

The local STB authentication unit 43 constructed in the local server 40 from the authentication number transmitted in this way searches for the local member management DB 42 when the authentication number is received through the local data transmission and reception unit 41. The received authentication number is then determined.

Therefore, from the determination result, the local server 40 is to provide the service of accompaniment data to the user currently connected through the set-top box 20.

That is, the user accesses the downloaded list of downloaded accompaniment through the high-speed Internet network and the set-top box 20, selects the desired accompaniment data number, and operates the set-top box by operating the remote control 10 with the selected number. 20).

Then, the remote control receiver 23 built in the set-top box 20 transmits the signal of the selection number to the local server 40 through the interface unit 22 and the high-speed Internet network,

The local data transmission / reception unit 41 of the local server 40 outputs the signal of the music selection number to be transmitted to the local selection unit 45.

At this time, the local selection unit 45 searches for the local accompaniment data DB 44 when the signal of the selection number is received through the local data transmission / reception unit 41, and accompaniment data corresponding to the received signal of the selection number. After reading the data compressed by the local data transmission and reception unit 41 to the set-top box 20 is connected to the high-speed Internet network and transmitted.

Therefore, the accompaniment data receiver 24 built in the set-top box 20 receives the accompaniment data of video, sound and lyrics information transmitted from the local server 40 through a high-speed Internet network. The accompaniment data is decompressed and output to the multiplexer 25.

Then, the multiplexer 25 outputs the decompressed accompaniment data received through the accompaniment data receiver 24 to the D / A converter 28 to be described later.

The D / A converter 28 converts the input digital accompaniment data into analog accompaniment data and outputs the same to the TV 100 and the acoustic system 200. In the acoustic system 200, the user selects a song. A sound is output and the lyrics of the sound selected by the user and a background image matching the genre of the sound are displayed on the screen of the TV 100 so that the user can hold the microphone of the sound system 200 to proceed with the song. It will be possible.

Here, the image of the accompaniment data output from the multiplexer 25, that is, the background image information, is processed by the graphic processing unit 26 built in the set-top box 20, so that the user of the TV 100 The video displayed on the screen can be seen more clearly.

In addition, the acoustic information of the accompaniment data output from the multiplexer 25 is to be processed by the sound processing unit 27 built in the set-top box 20, so that the user outputs through the speaker of the sound system 200 The sound quality of the sound to be heard more clearly.

Here, when the service of the accompaniment data requested by the set-top box 20 is interrupted by external factors while the service of the accompaniment data is in progress from the local server 40, the service of the accompaniment data is automatically transferred to the central server 30. By converting, the service of accompaniment data was carried out continuously.

On the other hand, if there is no information of the accompaniment data requested by the user as a result of the search of the local accompaniment data DB 44 by the local selection unit 45, the local selection unit 45 returns the unsearched result to the service request unit ( 46).

Then, the service request unit 46 is to transmit a signal requesting the information of the accompaniment data requested by the user to the central server 30,

The central server 30 transmits the music file of the added and changed parts corresponding to the request signal to the local server 40, and the local server 40 downloads the music file of the added and changed parts. After receiving it and storing it in the local accompaniment data DB 44, the music file is transmitted to the set-top box 20 through the local data transmission unit 41 and the high-speed Internet network to proceed with the service.

Here, the accompaniment data of the image transmitted to the set-top box 20 by the local server 40 is information continuously updated from the central server 30, which is the local server 40 and the central server 30 This is to minimize network bandwidth requirements so that the service can operate more efficiently.

In addition, the service request unit 46 checks the output time of the accompaniment data when the service of the accompaniment data is finished, and transmits the check result to the central server 30, so that the user at the central server 30 The service fee will be settled according to the usage time of the accompaniment data.

On the other hand, if there is no response from the local server 40 after the authentication procedure from the server selection unit 50 of the intelligent traffic rerouting function built in the set-top box 20, the server selection unit 50 converts the network connection to the augmentation server 30 to transmit the selection information of the accompaniment data selected by the user as well as the authentication information of the set-top box 20 to the central server 30.

Then, the central server 30, as well as the authentication of the set-top box 20, the service request of the accompaniment data selected by the user immediately proceeds without going through the local server 40.

That is, the service request of the accompaniment data by the set-top box 20 is made to the local server 40 in response to the first, but if the service request fails because the local server 40 does not respond, the central The service request is switched to the server 30 to proceed.

Looking at this in more detail as follows.

After the user supplies power to the TV 100, the sound system 200, and the set top box 20, the user operates the STB operation button 21 provided in the set top box 20.

Then, the set-top box 20 is booted from the ON operation of the STB operation button 21, and at the same time, the server selection unit 50 of the intelligent traffic rerouting function built in the set-top box 20 is performed. Searches for the local server 40 that went through the authentication procedure.

At this time, if the search is not made because the local server 40 has not responded to the search result authentication procedure, the interface unit 22 built in the set-top box 20 is connected to a central server through a high-speed Internet network. 30, and at the same time as the connection, the interface unit 22 transmits the authentication number of the set-top box 20 to the data receiving unit 31 of the central server 30.

STB authentication unit 33 built in the central server 30 from the authentication number sent in this way, when the authentication number is received through the data receiving unit 31, after searching the member management DB (32) received Determine the authentication number.

Therefore, from the determination result, the central server 30 is to provide the service of accompaniment data to the user currently connected through the set-top box 20.

That is, a user selects the desired accompaniment data number by searching the updated list downloaded by the user who is connected through the high-speed Internet network and the set-top box 20, and then operates the remote controller 10 to select the selected accompaniment data. 20).

Then, the remote control receiver 23 built in the set-top box 20 transmits the signal of the selection number to the central server 30 through the interface unit 22 and the high-speed Internet network,

The data receiver 31 of the central server 30 outputs the signal of the music selection number which is transmitted to the music selection unit 36.

At this time, the selection unit 36 searches for the accompaniment data DB 34 when the signal of the selection number is received through the data receiver 31, and reads the accompaniment data corresponding to the signal of the selection number. This is compressed and transmitted to the set-top box 20 connected to the high-speed Internet network through the data output unit 35.

Therefore, the accompaniment data receiver 24 built in the set-top box 20 receives the accompaniment data of video, sound and lyrics information transmitted from the central server 30 through a high-speed internet network. The accompaniment data is decompressed and output to the multiplexer 25.

Then, the multiplexer 25 outputs the decompressed accompaniment data received through the accompaniment data receiver 24 to the D / A converter 28 to be described later.

The D / A converter 28 converts the input digital accompaniment data into analog accompaniment data and outputs the same to the TV 100 and the acoustic system 200. In the acoustic system 200, the user selects a song. A sound is output and the lyrics of the sound selected by the user and a background image matching the genre of the sound are displayed on the screen of the TV 100 so that the user can hold the microphone of the sound system 200 and proceed with singing. It will be possible.

On the other hand, when the local server 40 in the region where the set-top box 20 is located while the accompaniment data service is in progress by the central server 30, the response signal is the central server 30 Of course, the set-top box 20 is notified.

Accordingly, the central server 30 authenticates the local server 40 transmitting a response signal through the server authentication unit 60, and the accompaniment data service of the set-top box 20 proceeds from the authentication result of the local server. It will automatically switch to 40.

As described above, the present invention allows the service of the accompaniment data as well as the authentication procedure of the set-top box when the operation button on of the set-top box is input and the user's selection number is input by the local server. When the service provided by ISP is disabled by hacking and other viruses, or when the connection is bad or the local server breaks down, the service of the accompaniment data is continuously managed through the central server. Have

In addition, the present invention is the network traffic between the central server and the local server according to the provision of the accompaniment data (image and music files) corresponding to the selection number when the operation button on the set-top box and the accompaniment data input is made In addition, the system can reduce the load of the set-top box authentication service of the central server through the authentication process of the set-top box by the local server.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (8)

STB operation to receive the accompaniment data of the accompaniment data to provide accompaniment data to the TV and sound system provided at homes and businesses as well as businesses, and to receive accompaniment data through the high-speed internet network. A set-top box dedicated to accompaniment system that has a button as well as an authentication number, a video and lyrics information as a background to a TV and a sound system, as well as sound information in real time through a high-speed Internet network and the set-top box online. In the centralized accompaniment system comprising a central server that is built and stores and manages the accompaniment data (video / sound / lyrics), The central server divides and connects a plurality of local servers having intelligent content distribution functions by region so that only music files of the accompaniment data are downloaded and updated, and image files are periodically updated. The set-top box has a server selection unit of intelligent traffic rerouting function to select the optimal service path according to the connection status of the high-speed Internet network as well as the failure of the central server and local server, The central server may be configured to further include a server authentication unit configured to assign authentication information to a local server divided by region and store the information in a server management DB, as well as determine whether the local server is operated through the stored authentication information. Centralized accompaniment system using a server. The method of claim 1, wherein the local server, Local data transmitter and receiver that receives acknowledgment number and selection number of Setop box through the high-speed Internet network and receives accompaniment data from the central server, and then sends them to Setop box. Local member management DB that stores and manages information about users of set-top boxes, A local STB authentication unit that searches for the local member management DB and determines the received authentication number when the authentication number is received through the local data transmission and reception unit; Local accompaniment data DB that downloads only the added and changed parts of the accompaniment data provided by the central server from the request of the service request unit to be described later, and updates and stores the video files periodically. A local selection unit for reading accompaniment data corresponding to the selection selection when the signal of the selection number is received through the local data transmission and reception unit and transmitting the accompaniment data to the set-top box connected to the high-speed internet network through the local data transmission and reception unit; After checking the output time of the accompaniment data through the local data transmission and reception unit, the checked information is transmitted to the central server, and if there is no accompaniment data corresponding to the search result selection number of the local selection section, the accompaniment data is sent to the central server. A service request unit for requesting information; Central control accompaniment system using a local server, characterized in that configuration including. The central server assigns authentication information to determine whether the server is operating to local servers divided by region, as well as authentication information of set-top boxes included in the region, and then periodically updates the image files included in the accompaniment data to the local server. step; Searching for a local server that has undergone the authentication procedure when the STB operation buttons of the set-top box distributed by region are turned on by the user; If the local server that has passed the authentication result is found, the authentication information of the set-top box is transmitted to the local server as well as the selection number of the accompaniment data selected by the user.If not, the network connection is switched to the augmentation server. Transmitting the selection number of the accompaniment data selected by the user as well as the authentication information; Retrieving the accompaniment data corresponding to the selection number from the local accompaniment data DB after determining the authentication information transmitted from the set-top box by the local server; Transmitting accompaniment data to the set-top box through a high-speed internet network when there is accompaniment data corresponding to a selection number in the local accompaniment data DB; If there is no accompaniment data corresponding to the search result, the local server requests information of the accompaniment data to the central server, downloads the music files of the added and changed parts of the accompaniment data, and transmits them to the set-top box; When selecting a new accompaniment data when the display of the accompaniment data is finished, repeat the above steps, and when the service of the accompaniment data ends, the output time of the accompaniment data transmitted to the set-top box is set so that the service fee according to the use time is settled. Transmitting the information to the central server after the local server counts; Service method of a centralized accompaniment system using a local server, characterized in that proceeds to. The method of claim 3, wherein the service request of the accompaniment data by the set-top box, The local server is made in response to the initial response, and if the service request fails because there is no response from the local server, the service request is automatically switched to the central server, characterized in that the centralized accompaniment system using the local server Service method. [4] The method of claim 3, wherein the service of the accompaniment data requested by the set-top box is stopped by external factors while the service is performed from the local server. Service method of centralized accompaniment system using local server. 4. The centralized accompaniment system according to claim 3, wherein the service of accompaniment data is automatically switched from the central server to the local server when there is a response from the local server where the service is stopped. Service method. 4. The method of claim 3, wherein if the central server releases authentication of a local server located in a specific region among a plurality of local servers divided by regions, accompanies data by deactivating all set-top boxes serviced by the deauthenticated local server. The service method of the centralized accompaniment system using a local server, characterized in that further comprising the step of switching to a service unavailable state impossible of service request. [4] The centralized accompaniment system of claim 3, wherein the authentication information of the set-top box provided from the central server to the local server includes a control code for disabling a service request by a specific set-top box. Service method.