KR101221639B1 - Premises broadcasting service apparatus for supporting contents mixing in hybrid network - Google Patents

Abstract

The present invention relates to a hybrid network based on-premises broadcasting service apparatus that supports mixing of broadcast contents. In the premises broadcasting service apparatus supporting selective mixing of broadcast contents in a hybrid network broadcasting communication environment in which a plurality of heterogeneous broadcasting communication networks according to the present invention are distributed, a plurality of broadcasts each communicating with a plurality of heterogeneous broadcasting communication networks distributed in the hybrid network Communication module; A content input unit connected to a plurality of input devices through a plurality of input terminals; A content output unit forming an output path with each distributor through a plurality of output terminals; A storage unit storing a mixing matrix table in which at least one output path is recorded corresponding to each input signal line, and a signal line table in which terminal identification information is recorded corresponding to each input signal line; And forming at least one input signal line corresponding to each input terminal of the content input unit, and when the broadcast content is received through the first input signal line, storing the output path and the terminal identification information corresponding to the first input signal line. A broadcast terminal having the terminal identification information identified by using the at least one of the plurality of broadcast communication modules and transmitting the broadcast content to the distributor through the identified output path by checking each of the negative mixing matrix table and the signal line table. And a content mixing unit for transmitting the broadcast content, wherein the content mixing unit checks whether there is a distributor or a broadcast terminal for receiving a plurality of broadcast contents at the same time and, if present, mixes the plurality of broadcast contents. Transmit to broadcast terminal or distributor.

Description

Premises broadcasting service apparatus for supporting contents mixing in hybrid network

The present invention relates to an on-premises broadcasting service technology, and more particularly, to an on-premises broadcasting service apparatus for selectively mixing and transmitting broadcast contents in a hybrid broadcasting communication environment in which a plurality of heterogeneous broadcasting communication networks are distributed.

Today, business or educational buildings such as corporations, government offices, hotels, condos or schools use on-premises broadcasting systems to deliver key messages to their members. For example, a broadcast manager may use the on-premises broadcasting system to provide audio and video data related to major routine notifications, fire drill notifications, or listening assessments to speakers in each broadcasting area (eg classrooms, administrative offices, offices, etc.). Optionally send to the monitor.

1 is a diagram showing the configuration of a conventional premises broadcasting system.

Referring to FIG. 1, a conventional video apparatus 110 includes a plurality of input terminals, and when a video signal is input through any one of the input terminals, the video device 110 is connected to a plurality of video distributors 121, 122, and 123 connected thereto. Pass the video signal. In addition, the conventional video device 110 converts the video signal into digital video data, encodes the video signal, and transmits the same to the internal broadcast network 150, thereby outputting the video data through a broadcast terminal connected to the broadcast network 150. To be.

The video distributors 121, 122, and 123 transmit the video signals received from the video device 110 to a plurality of monitors connected to the video distributors 110 to output the video signals through the corresponding monitors.

The conventional audio device 130 includes a plurality of input terminals, and when an audio signal is input through any one of these input terminals, transmits the signal to the plurality of distributors 141, 142, and 143 connected thereto, and the audio signal. The digital audio data is converted into digital audio data, encoded, and transmitted to a broadcasting terminal connected to the broadcasting network 150.

The distributors 141, 142, and 143 transmit the audio signals received from the audio device 130 to a plurality of speakers connected thereto, so that the audio signals are output through the corresponding speakers.

Meanwhile, the audio device 130 stores the time signal source for notifying the beginning or the end of the class, counts the time at which the time signal source is transmitted, and mixes the currently transmitted audio data with the time signal source when the corresponding time arrives. Audio data is transmitted to the distributors 141, 142, and 143 and the broadcast terminal.

However, even if the conventional premises broadcasting system transmits the mixed audio data through the entire broadcast, it cannot selectively designate and broadcast the specific terminal or the distributors 141, 142, and 143. That is, the conventional premises broadcasting system cannot output the mixed audio data to a specific broadcast terminal or distributor 141, 142, 143 connected to the broadcast network 150, and output the mixed audio data only to all speakers. There is a problem.

In addition, when a video signal is simultaneously received from two or more input terminals among a plurality of input terminals, the conventional video apparatus 110 simultaneously outputs the plurality of video signals through the same path, thereby making it impossible to identify a shape on a monitor. There is also a problem of outputting a video.

On the other hand, the conventional premises broadcasting system generally transmits a broadcast message to a plurality of broadcast terminals using a single broadcast network 150. For example, the premises broadcasting system builds one of a hybrid fiber coax (HFC) -based CATV network (Cable Television Network), an HFC-based Internet Protocol (IP) network, and an UTP (Unshielded Twisted Pair) -based IP network. The broadcast message is transmitted to the broadcast terminal using the corresponding network.

However, in the conventional premises broadcasting system, when the internal broadcasting network is changed due to internal circumstances such as moving directors, there is a problem that the broadcasting terminal must also be changed. That is, the conventional premises broadcasting system includes a plurality of broadcast terminals compatible with an internal broadcast network, and transmits a broadcast message to each broadcast terminal. When the internal broadcast network is changed, a broadcast terminal compatible with the broadcast network is provided. It must be purchased separately. For example, when the broadcasting network 150 of the on-premises broadcasting system is changed from an HFC based CATV network to a UTP based IP network, users must purchase a broadcasting terminal compatible with the UTP based IP network. In addition, the conventional premises broadcasting system transmits a broadcast message using only a single broadcast network, and thus, there is a problem that the broadcast service itself is impossible when the broadcast network 150 fails.

The present invention has been proposed in order to solve such a conventional problem, by selectively digitally mixing a plurality of broadcast contents and transmitting them to a specified distributor or broadcast terminal, or by modulating the mixed broadcast contents by IP packet or CATV / ATSC scheme. An object of the present invention is to provide an on-premises broadcasting service apparatus for transmitting to a broadcasting terminal.

Another object of the present invention is to provide an on-premises broadcasting service apparatus for mixing the plurality of video data into one video data and providing the same to the user so that the plurality of video data appear on a separate screen.

In addition, another object of the present invention is to provide an apparatus for providing an on-premises broadcasting service using a hybrid network in which heterogeneous broadcasting communication networks are distributed and a broadcasting terminal compatible with the hybrid network.

In addition, another object of the present invention is to provide a hybrid network-based on-premises broadcasting service apparatus having redundancy.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

The premises broadcasting service apparatus supporting selective mixing of broadcast contents in a hybrid network broadcasting communication environment in which a plurality of heterogeneous broadcasting communication networks according to the present invention is distributed may include a plurality of broadcasts each communicating with a plurality of heterogeneous broadcasting communication networks distributed in the hybrid network. Communication module; A content input unit connected to a plurality of input devices through a plurality of input terminals; A content output unit forming an output path with each distributor through a plurality of output terminals; A storage unit storing a mixing matrix table in which at least one output path is recorded corresponding to each input signal line, and a signal line table in which terminal identification information is recorded corresponding to each input signal line; And forming at least one input signal line corresponding to each input terminal of the content input unit, and when the broadcast content is received through the first input signal line, storing the output path and the terminal identification information corresponding to the first input signal line. A broadcast terminal having the terminal identification information identified by using the at least one of the plurality of broadcast communication modules and transmitting the broadcast content to the distributor through the identified output path by checking each of the negative mixing matrix table and the signal line table. And a content mixing unit for transmitting the broadcast content, wherein the content mixing unit checks whether there is a distributor or a broadcast terminal for receiving a plurality of broadcast contents at the same time and, if present, mixes the plurality of broadcast contents. Characterized in that the transmission to the broadcast terminal or distributor.

The present invention has the advantage of selectively mixing broadcast content of which a destination is overlapped among a plurality of broadcast content, and accurately transmitting the mixed broadcast content to a broadcast terminal or an output device designated as a destination.

In addition, the present invention has the advantage of providing the members by mixing the plurality of video data into a single video data, so that each of the plurality of video data appear on a separate screen.

In addition, the present invention integrates and implements a conventional audio device and a video device into one, thereby facilitating maintenance for a broadcast service as well as providing convenience to an administrator.

In addition, since the present invention provides an on-premises broadcasting service using a hybrid network having a plurality of heterogeneous networks, there is an advantage of providing a user with an uninterrupted broadcasting service using another broadcasting communication network even when a failure occurs in a specific broadcasting communication network. .

In addition, the present invention proposes a broadcast terminal that is compatible with all of a plurality of heterogeneous networks, so that even if the internal network is changed, the user can continuously use the broadcast service by using the built-in broadcast terminal without separately purchasing the broadcast terminal for the internal network. There is an advantage to them.

In addition, the present invention has the advantage of providing a smooth and high quality broadcasting service to users by maximizing the utilization efficiency of network resources by performing load balancing of the hybrid network.

In addition, the present invention has an advantage of automatically switching the connection path of a broadcast terminal deteriorated in broadcast communication quality to another broadcast communication network to ensure the broadcast service quality of the broadcast terminal.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention. And shall not be construed as limited to such matters.
1 is a diagram illustrating a conventional premises broadcasting system.
2 is a diagram illustrating a configuration of a premises broadcasting service system according to an exemplary embodiment of the present invention.
3 is a diagram illustrating a configuration of a premises broadcasting service device according to an embodiment of the present invention.
4 is a diagram illustrating a mixing matrix table according to an embodiment of the present invention.
5 is a diagram illustrating a signal line table of a storage unit according to an exemplary embodiment of the present invention.
6 is a diagram illustrating a network management table managed by a control device according to an embodiment of the present invention.
7 is a flowchart illustrating a method of selectively mixing and transmitting broadcast content in a premises broadcasting service device according to an embodiment of the present invention.
8 is a flowchart illustrating a method of selectively mixing and transmitting broadcast content in a premises broadcasting service device according to another embodiment of the present invention.
FIG. 9 is a flowchart illustrating a method for performing load balancing of a hybrid network in an on-premises broadcasting service device according to an embodiment of the present invention.
FIG. 10 is a flowchart illustrating a method of switching a connection path of a broadcast terminal to another broadcast communication network according to a request of an administrator in an on-premises broadcasting service device according to an embodiment of the present invention.
11 is a flowchart illustrating a method of switching a connection path of a broadcast terminal based on broadcast communication quality in an on-premises broadcasting service device according to an embodiment of the present invention.
FIG. 12 is a flowchart illustrating a method for designating a connection path of a broadcast terminal requested for uplink broadcasting in a premises broadcasting service device according to an embodiment of the present invention.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a configuration of a premises broadcasting service system according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the premises broadcasting service system according to an exemplary embodiment of the present invention includes a premises broadcasting service device 300, a plurality of input devices 200 -N, a plurality of broadcasting terminals 600 -N, and a plurality of broadcasting services. Heterogeneous broadcasting network (510, 520, 530, 540) and a plurality of distributors 400-N.

Each broadcast terminal 600-N has unique identification information (ie, broadcast terminal ID) and performs a function of outputting broadcast content received from the premises broadcasting service device 300. The broadcasting terminal 600-N includes a video output means (eg, a monitor) and an audio output means (eg, a speaker), or is connected to the video output means and an audio output means and includes video data and audio data included in broadcast content. Outputs

In particular, the broadcast terminal 600-N is connected to a plurality of heterogeneous broadcast communication networks 510, 520, 530, and 540, respectively. That is, the broadcasting terminal 600-N is a UTP-IP broadcasting communication module, HFC (Hybrid Fiber), which communicates with an IP broadcast communication network based on UTP (Unshielded Twisted Pair) (hereinafter referred to as 'UTP-IP network') 510. HFC-IP broadcasting communication module communicating with Coax-based IP broadcasting communication network (hereinafter referred to as 'HFC-IP network') 520, CATV broadcasting television network based on HFC (Hybrid Fiber Coax) HFC-CATV broadcasting communication module and HSC (Hybrid Fiber Coax) -based ATSC broadcasting communication network (hereinafter referred to as 'HFC-ATSC network'). And a HFC-ATSC broadcast communication module for communicating with the plurality of heterogeneous broadcast communication networks 510, 520, 530, and 540, respectively, using the broadcast communication module.

The broadcasting terminal 600-N activates one or more of the UTP-IP broadcasting communication module, the HFC-IP broadcasting communication module, the HFC-CATV broadcasting communication module, and the HFC-ATSC broadcasting communication module, and the corresponding broadcasting communication network 510, 520, 530, 540. In addition, the broadcast terminal 600 -N may activate a specific broadcast communication module according to the instructions of the local broadcast service device 300. In addition, when the broadcasting terminal 600-N is initially driven and connected to the heterogeneous broadcasting communication networks 510, 520, 530, and 540, the broadcasting terminal 600-N is based on the priority information of the heterogeneous broadcasting communication networks 510, 520, 530, and 540 which are set in advance. In addition, access is made to the broadcasting communication networks 510, 520, 530, and 540 having the highest priority. On the other hand, when a broadcast terminal 600-N fails in the connected broadcast communication networks 510, 520, 530, and 540, the broadcast terminal 600-N continuously connects to other broadcast communication networks 510, 520, 530, and 540 to continuously broadcast broadcast contents. It receives from the service device 300.

Each input device 200 -N is an apparatus for delivering analog broadcast content or digital broadcast content to the on-premises broadcast service device 300. The input device 200 -N includes a microphone, a video tape playback device (eg, a VCR, a VTR) Analog-based input means or digital-based input means such as a compact disc player, a MP3 (MPEG Audio Layer-3) player, a portable multimedia player (PMP), a personal computer, and the like are adopted. The input device 200 -N is connected to any one of a plurality of input terminals provided in the premises broadcasting service device 300.

The distributor 400 -N is a device for distributing broadcast content to a plurality of output devices, and is connected to any one of a plurality of output terminals provided in the premises broadcasting service device 300. The divider 400 -N is an apparatus that supports an analog signal or a digital signal, and distributes analog broadcast content or digital broadcast content to a plurality of output devices connected thereto. On the other hand, when the distributor 400 -N receives the output device identification list from the premises broadcasting service device 300, the distributor 400 -N distributes the broadcast content only to a device corresponding to the output device identification list among a plurality of output devices connected thereto.

The output device is an output means such as a speaker or a monitor, and notifies members of a broadcast message by outputting audio data or video data received from the distributor 400-N.

The premises broadcasting service device 300 includes a UTP-IP broadcasting communication module communicating with the UTP-IP network 510, an HFC-IP broadcasting communication module communicating with the HFC-IP network 520, and an HFC-CATV network 530. It is equipped with a HFC-CATV broadcasting communication module and a HFC-ATSC broadcasting communication module for communicating with the HFC-ATSC network 540 to communicate, and performs the function of controlling the premises broadcasting service using the plurality of broadcast communication modules. In addition, the on-premises broadcasting service device 300 edits a scheduling scenario related to time signal broadcasting, broadcasting broadcasting, emergency broadcasting, reserved broadcasting, and group broadcasting, and provides broadcasting contents to the corresponding broadcasting terminal 600-N. In addition, the on-premises broadcasting service apparatus 300 may perform functions such as real-time volume control for broadcast content, ON / OFF control for input of broadcast content, selection control of a mixing bus for mixing broadcast content, and broadcast content management. do.

In particular, the on-premises broadcasting service device 300 encodes and provides broadcast contents selectively mixed to a broadcasting terminal 600-N connected to a plurality of heterogeneous broadcasting communication networks 510, 520, 530, and 540, and also divides the distribution 400. -N) simultaneously performs a function of providing broadcast content. That is, when the broadcast service device 300 receives the broadcast content, it selectively encodes the mixed broadcast content to a plurality of broadcast terminals 600-N connected to the heterogeneous broadcast communication networks 510, 520, 530, and 540. And transmits the mixed broadcast content to the distributor 400-N. Similarly, when the broadcast service device 300 receives broadcast content from a specific input device 200 -N connected to an input terminal, the broadcast content is selectively mixed to distribute the broadcast content to the distributor 400 -N or heterogeneous broadcast communication network 510. , 520, 530, and 540 are connected to the broadcast terminal 600-N.

In this case, the on-premises broadcasting service device 300 converts a plurality of audio data included in each of the plurality of broadcast contents as one sound source data, and simultaneously converts a plurality of video data so that the plurality of video data appear on a separate screen. By converting the video data into video data, a plurality of broadcast contents are mixed into one broadcast content. For example, the premises broadcasting service device 300 divides the output screen vertically into two, and mixes a plurality of broadcast contents such that the first video data and the second video data are output to the split left and right screens, respectively. can do. As another example, the premises broadcasting service device 300 may mix the plurality of broadcast contents such that the first video data is displayed on the full screen and the second video data is output to a predetermined area at the lower right.

In addition, the on-premises broadcasting service device 300 recognizes the identification information of the designated broadcast terminal 600-N, and transmits the mixed and encoded broadcast contents to the corresponding broadcast terminal 600-N. In addition, the on-premises broadcasting service device 300 transmits the broadcast content to the broadcast terminal 600-N or the distributor 400-N based on a broadcast scheduling (program schedule) scenario (for example, a time signal broadcasting scenario and a group broadcasting scenario). send. For example, upon receiving the reserved broadcast scenario, the premises broadcasting service device 300 transmits the broadcast content to the broadcast terminal 600-N or the distributor 400-N after counting the reserved time.

3 is a diagram illustrating a configuration of a premises broadcasting service device according to an embodiment of the present invention.

As shown in FIG. 3, the premises broadcasting service apparatus 300 according to an exemplary embodiment of the present invention includes a content input unit 310, a content output unit 320, a broadcast communication unit 330, a storage unit 340, and a content. The mixing unit 350 and the connection path management unit 360 are included.

The content input unit 310 includes a plurality of input terminals and performs a function of receiving analog or digital broadcast content from the input apparatus 200 -N through the input terminals. That is, each input terminal of the content input unit 310 is connected to the input apparatus 200 -N through a cable, and the corresponding input apparatus 200 -N inputs the broadcast content input from the user through the cable. Forward to 310. In addition, the content input unit 310 forms a content mixing unit 350 and input signal lines IN1 to IN4 corresponding to each input terminal. Each of the input signal lines is provided with unique identification information.

The content output unit 320 includes a plurality of output terminals OUT1 to OUT4 which are content output paths, and transmits the broadcast content to the distributor 400 -N through the respective output terminals. In other words, each output terminal provided in the content output unit 320 is connected one-to-one with the distributor 400 -N through a cable, and the distributor 400 -N has its own broadcast content transmitted from the content output unit 320. Output to multiple output devices connected to Each output terminal of the content output unit 320 is provided with unique identification information.

The broadcast communication unit 330 generates a broadcast content provided from the content mixing unit 350 into a plurality of packets having a predetermined size, and transmits the packet to a corresponding broadcast terminal 600-N. In particular, the broadcast communication unit 330 includes a plurality of broadcast communication modules 331, 332, 333, and 334 communicating with the heterogeneous broadcast communication networks 510, 520, 530, and 540, respectively.

The UTP-IP broadcasting communication module 331 communicates with the UTP-IP network 510 in the hybrid network, and transmits various data to the broadcasting terminal 600-N through the UTP-IP network 510 or broadcast terminal ( 600-N).

The HFC-IP broadcast communication module 332 communicates with the HFC-IP network 520 in a hybrid network, and transmits various data to the broadcast terminal 600-N through the HFC-IP network 520 or broadcast terminal ( 600-N).

The HFC-CATV broadcast communication module 333 transmits and receives data with the broadcast terminal 600-N through the HFC-CATV network 530.

Similarly, the HFC-ATSC broadcasting communication module 334 communicates with the HFC-ATSC network 540 among the hybrid networks, and transmits or broadcasts various data to the broadcasting terminal 600-N through the HFC-ATSC network 540. Receives data from the terminal 600 -N.

The storage unit 340 stores various broadcast contents such as time signals, listening evaluation sounds, alarm sounds, and the like. The broadcast content of the storage unit 340 includes broadcast terminal identification information, input signal line identification information, and output terminal identification information. In addition, the storage unit 340 stores broadcast scenario information such as a reserved broadcast time and a broadcast schedule.

In particular, the storage unit 340 may include a mixing matrix table, which is the basis of the mixing control, a signal line table in which terminal identification information is recorded corresponding to each of the input signal lines IN1 to IN8, and each broadcasting communication network 510, 520, 530,. A network management table in which the broadcast communication quality and the load rate of 540 is recorded is stored.

4 is a diagram illustrating a mixing matrix table according to an embodiment of the present invention.

As illustrated in FIG. 4, the storage unit 340 stores a mixing matrix table in which output path OUT1 to OUT4 information is recorded corresponding to each input signal line IN1 to IN8. In other words, the mixing matrix table of the storage unit 340 stores data for determining to which output paths OUT1 to OUT4 the broadcast content received from each of the input signal lines IN1 to IN8 is output. In FIG. 4, the number '1' represents an ON state, and the number '0' represents an OFF state. In FIG. 4, the broadcast content input from the input signal line 6 (IN6) is output to the output terminal 3 (OUT3) and the output terminal 4 (OUT4). In addition, in FIG. 4, broadcast content simultaneously inputted from the input signal lines 1, 3, 5, and 8 (IN1, IN3, IN5, and IN8) is mixed into one broadcast content and output to output terminal 1 (ie, OUT1). do. The mixing matrix table may be set by an administrator, and may be changed from time to time based on input signal line identification information and output terminal identification information included in broadcast content.

5 is a diagram illustrating a signal line table of a storage unit according to an exemplary embodiment of the present invention.

As illustrated in FIG. 5, the storage unit 340 stores a signal line table in which identification information of the broadcast terminal 600 -N is recorded in correspondence with input signal line identification information. Here, each of the input signal line identification information IN1 to IN8 indicates a path through which broadcast content is received, and some of the input signal line identification information IN1 to IN4 corresponds to the content input unit 310 and the content mixing unit 350. Represents identification information on a content reception path formed between In addition, some of the input signal line identification information IN5 to IN8 are reserved as input signal lines of broadcast content stored in the storage unit 340. In this case, the content mixing unit 350 checks the input signal line identification information included in the broadcast content, and considers that the broadcast content is received as the corresponding input signal line.

Referring to FIG. 5, the input signal line 1 (IN1) is input to broadcast content received from a portable multimedia player (PMP) through the input signal line 1 (IN1) of the content input unit 310. Indicates signal path. In addition, the input signal lines 5 (IN5) to 8 (IN8) are input signal paths for the broadcast contents stored in the storage unit 340 or broadcast contents received from the hybrid networks 510, 520, 530, and 540. Indicates the input signal path. That is, the input signal line identification information is recorded in each of the previously stored broadcast contents or the broadcast contents received through the hybrid networks 510, 520, 530, and 540, and the on-premises broadcasting service apparatus 300 inputs the input signal lines 5 (IN5). ) Is reserved for the broadcast content stored in the storage unit 340 up to the input signal line 8 (IN8) or for the broadcast content received from the hybrid network 510, 520, 530, or 540.

In addition, in the signal line table of the storage unit 340, a list of identification information of the broadcast terminal 600-N is recorded corresponding to the input signal line identification information IN1 to IN8. For example, 'TE2' may be recorded in the signal line table of the storage unit 340 as the broadcast terminal identification information corresponding to the input signal line 2 (IN2). Meanwhile, broadcast terminal identification information may not be recorded in the signal line table of the storage unit 340 according to the type of the input signal line. In Fig. 5, terminal identification information is not recorded in input signal lines 5 (IN5) to 8 (IN8), and only option information (optional) is recorded. That is, when an input signal line indicates a path received through the hybrid network 510, 520, 530, or 540 or is reserved for broadcast content of the storage unit 340, the broadcast terminal corresponds to the corresponding input signal line identification information. Identification information is not recorded in the signal line table. Here, when the broadcasting terminal identification information is not recorded, the identification information of the broadcasting terminal 600-N corresponding to the input signal line is designated according to the user's selection.

6 is a diagram illustrating a network management table managed by a control device according to an embodiment of the present invention.

Referring to FIG. 6, the network management table of the storage unit 340 records bandwidth, broadcast channel number, load rate, voice delay time, packet loss rate, and terminal identification information corresponding to each network identification information. Here, the identification information of each broadcasting communication network 510, 520, 530, 540 is recorded in the network identification information field 61, and each broadcasting communication network 510, 520, 530, 540 is recorded in the bandwidth amount field 62. The bandwidth used by is recorded in BPS (Bits Per Second). In other words, in the bandwidth amount field 62, the total bandwidth of the broadcast channel established for each broadcast communication network 510, 520, 530, 540 is recorded. In the broadcast channel number field 63, the total number of broadcast channels established in each broadcast communication network 510, 520, 530, 540 is recorded.

In addition, in the load rate field 64, the load of the broadcasting network 510, 520, 530, 540 is recorded as a percentage (%). Here, the connection path management unit 360 of the premises broadcasting service device 300 is a data communication amount (or packet throughput) that can be transmitted and received collectively by a specific broadcast communication network (510, 520, 530, 540) the broadcast communication network 510 By dividing the data throughput (or packet throughput) currently transmitted / received by 520, 530, and 540, the load ratio of the corresponding broadcast communication networks 510, 520, 530, and 540 can be calculated and recorded in the network management table. At this time, the access path management unit 360 continuously monitors the data throughput processed by each broadcasting communication network 510, 520, 530, 540, and is currently transmitting and receiving in each broadcasting communication network 510, 520, 530, 540. Acquire data throughput. Alternatively, the access path management unit 360 divides the currently used bandwidth (ie, the bandwidth recorded in the bandwidth amount field) by the maximum bandwidth of the specific broadcast communication network 510, 520, 530, or 540. Load rates of 520, 530, and 540 may be calculated and recorded in a network management table. As another method, the connection path management unit 360 combines the data throughput, bandwidth, maximum data throughput, and maximum bandwidth of the broadcasting network 510, 520, 530, 540, and the broadcasting network 510, 520, 530. , The load factor of 540 may be calculated.

On the other hand, in the voice delay time field 65, audio packet delay time of each broadcasting communication network 200, 300, 400 is recorded in millisecond (ms) unit, and in the video delay time field 66, each broadcasting communication network 200, Video packet delay times of 300 and 400 are recorded in milliseconds (ms).

On the other hand, in the voice delay time field 65, the audio packet delay time of each broadcasting communication network 510, 520, 530, 540 is recorded in milliseconds (ms). In the packet loss rate field 67, the packet loss rate of each broadcasting communication network 510, 520, 530, 540 is recorded in percentage unit (%). In addition, in the terminal identification information field 68, identification information of the broadcast terminal 600-N connected to each broadcast communication network 510, 520, 530, 540 is recorded. For example, in FIG. 6, the broadcast terminal 600-N accessing the UTP-IP network 510 has broadcast information having identification information of 'TE1', 'TE4', 'TE8', 'TE11' or 'TE13'. Terminal 600-N.

The content mixing unit 350 provides broadcast content to the broadcast terminal 600-N connected to the heterogeneous broadcast communication networks 510, 520, 530, and 540, and broadcasts to the distributor 400-N connected to a plurality of output terminals. Function to provide content. In detail, when the content mixing unit 350 receives the broadcast content from the user, the content mixing unit 350 checks the broadcast terminal identification information and the output terminal identification information included in the broadcast content. In addition, the content mixing unit 350 transmits the broadcast content to the broadcast terminal 600-N corresponding to the broadcast terminal identification information by using the broadcast communication unit 330, and outputs the content using the content output unit 320. It is sent to the distributor 400-N connected in correspondence with the terminal identification information.

In addition, when the content mixing unit 350 receives broadcast content from a specific input device 200 -N connected to the input terminal of the content input unit 310, the content mixing unit 350 refers to the signal line table and the mixing matrix table of the storage unit 340. The broadcast content is transmitted to the designated output terminal of the content output unit 320, and the broadcast content is transmitted to the designated broadcast terminal 600-N using the broadcast communication unit 330. Preferably, the content mixing unit 350 encodes broadcast content and transmits the encoded broadcast content to the broadcast terminal 600-N through the broadcast communication unit 330.

In addition, the content mixing unit 350 broadcasts the broadcast content to the broadcast terminal 600-N or the distributor 400-N based on the broadcast scheduling scenario (for example, the time broadcast scenario, the group broadcast scenario, and the broadcast time scenario). send. For example, when the content mixing unit 350 receives the broadcast content including the reserved broadcast scenario from the user, the content mixing unit 350 counts the reserved time and broadcasts the broadcast content to the broadcast terminal 600-N or the distributor 400-N. To send.

In the meantime, when the broadcast content is received from the specific input signal line while the specific broadcast content is being transmitted, the content mixing unit 350 refers to the mixing matrix table of the storage unit 340 to check whether there is a broadcast object to be mixed. If present, a plurality of broadcast contents are mixed into one and transmitted to a specific output terminal of the content output unit 320 or transmitted to a specific broadcast terminal 600-N using the broadcast communication unit 330.

When mixing a plurality of broadcast contents, the content mixing unit 350 extracts audio data and video data included in each broadcast content, converts the extracted plurality of audio data as one sound source data, and simultaneously extracts the plurality of broadcast contents. The plurality of video data is converted into one video data so that each of the video data is output on a screen separated by a predetermined area.

In addition, the content mixing unit 350 adjusts the volume of the broadcast content input through each input signal line, and also adjusts the volume of the broadcast content to be output to each output terminal of the content output unit 320. Adjustment module 351. The volume adjustment module 351 has volume increase information for each input signal line IN1 to IN8, and increases the audio volume of broadcast content received from each input signal line based on the volume increase information. Decrease. For example, if the volume increase / decrease information of the input signal line 1 (IN1) is '+10 dB', the volume adjusting module 351 increases the audio volume of the broadcast content received from the input signal line 1 (IN1) by 10 dB. . In addition, the volume adjustment module 351 stores the volume increase and decrease information for each output terminal of the content output unit 320, and increases the audio volume of the broadcast content to be transmitted to each output terminal based on the volume increase and decrease information. Reduce or decrease. For example, if the volume increase / decrease information of the output terminal 2 (OUT2) is '-5 dB', the volume adjusting module 351 reduces the audio volume of the broadcast content to be output to the output terminal 2 (OUT2) by 5 dB.

The connection path manager 360 checks the load ratios of the broadcast communication networks 510, 520, 530, and 540 based on the network management table of the storage unit 340, and determines the specific broadcast communication networks 510, 520, 530, and 540. When the load ratio of the above exceeds a predetermined threshold (eg, 80%), some of the broadcast terminals 600-N are connected to the broadcast communication networks 510, 520, 530, and 540. The connection path of N) is switched to other broadcasting communication networks 510, 520, 530, and 540. In addition, when the access path manager 360 receives an instruction to stop broadcasting of a specific broadcast communication network 510, 520, 530, or 540 from a manager, the access terminal manager 360 is connected to the corresponding broadcast communication network 510, 520, 530, or 540. -N) switch the connection path. In particular, when the access path management unit 360 receives a request for upstream broadcast from the broadcast terminal 600-N, the broadcast communication network 510,520 for the upstream broadcast based on the load ratio of each broadcast communication network 510, 520, 530, 540. , 530, 540 are selected, and the broadcast terminal 600 -N is connected to the selected broadcast communication network 510, 520, 530, 540.

7 to 8, the broadcast terminal 1 600-1 is connected to the UTP-IP network 510, and the broadcast terminal 2 600-2 is connected to the HFC-IP network 520. Assume that That is, the broadcast terminal 1 600-1 communicates with the UTP-IP network 510 by activating the UTP-IP broadcast communication module among the plurality of broadcast communication modules, and the broadcast terminal 2 600-2 communicates with the plurality of broadcast communications. It is assumed that the HFC-IP broadcast communication module is activated among the modules to communicate with the HFC-IP network 520.

7 is a flowchart illustrating a method of selectively mixing and transmitting broadcast content in a premises broadcasting service device according to an embodiment of the present invention.

In the description with reference to FIG. 7, a broadcast terminal 1 600-1 may be used while the premises broadcasting service device 300 is transmitting the first broadcast content to the broadcast terminal 1 600-1 and the distributor 1 400-1. Receiving the second broadcast content including the identification information of the broadcasting terminal 2 600-2, the identification information of the output terminal 1 OUT1 and the output terminal 2 OUT2, and the input signal line identification information IN8 from the user. It is assumed and explained.

Referring to FIG. 7, the content mixing unit 350 of the premises broadcasting service device 300 uses the broadcast communication unit 330 and the content output unit 320 to transmit the first broadcast content to the broadcast terminal 1 600-1. While transmitting to the distributor 1 400-1, the premises broadcasting service device 300 receives second broadcast content including an output terminal identification list, a terminal identification list, and input signal line identification information from a user (S701 and S703). , S705). In this case, the premises broadcasting service device 300 may receive the second broadcast content from the broadcast terminal 600-N of the remotely located user through the broadcast communication unit 330, and directly connected to the control device (shown in FIG. (Not shown) may receive the second broadcast content. In addition, the second broadcast content may include a broadcast reservation time.

Then, the content mixing unit 350 checks output terminal identification information (ie, OUT1 and OUT2) and input signal line identification information IN8 included in the second broadcast content (S707). Here, since the second broadcast content input from a device other than the input device 200 -N (ie, the broadcast terminal or the control device) does not form a separate signal line from the premises broadcasting service device 300, Input signal line identification information is recorded in the broadcast content. That is, when the user transmits the second broadcast content to the premises broadcasting service device 300, the user inputs input signal line identification information for the second broadcast content separately.

Next, the volume adjusting module 351 of the content mixing unit 350 increases or decreases the audio volume of the second broadcast content based on previously stored volume increase / decrease information for each input signal line. Subsequently, the content mixing unit 350 extracts the terminal identification information included in the second broadcast content, and the broadcasting terminal designated as the destination of the second broadcast content based on the terminal identification information and the network management table of the storage unit 340. It is checked whether the 1,2 (600-1, 600-2) is connected to which broadcast communication network (510, 520, 530, 540) (S709). That is, the content mixing unit 350 checks which broadcasting communication network identification information is extracted in the network management table of the storage unit 340 corresponding to the extracted terminal identification information.

Subsequently, the content mixing unit 350 records activation information of the output terminals 1 and 2 (OUT1 and OUT2) in the mixing matrix table of the storage unit 340 corresponding to the identified input signal line identification information IN8. That is, as the path through which the broadcast content is received is 'IN8' and 'OUT1 and OUT2' are recorded as output terminal identification information in the broadcast content, the content mixing unit 350 corresponds to the input signal line 'IN8' and thus 'OUT1'. Activation information (ie, number 1) of 'and' OUT1 'is recorded in the mixing matrix table of the storage unit 340.

Next, the content mixing unit 350 checks whether the mixing target broadcast content exists, based on the activation information of the mixing matrix table (S711). That is, the content mixing unit 350 checks whether broadcast content output to a specific output terminal is duplicated based on the activation information recorded in the mixing matrix table of the storage unit 340. In other words, as the new second broadcast content is received, the content mixing unit 350 stores whether there is another broadcast content simultaneously outputted on the same output path (that is, an output terminal) as the second broadcast content. In the mixing matrix table. In addition, the content mixing unit 350 checks the broadcast terminal identification information included in the broadcast content, the terminal designated as the destination of the second broadcast content from the broadcast terminal 1 (600-1) currently receiving the first broadcast content Check if it exists.

Next, the content mixing unit 350, if there is a broadcast terminal 600-N designated as a destination of both the first broadcast content and the second broadcast content, or if there is an output terminal designated as an output path of both broadcast content, The broadcast content and the second broadcast content are determined as content to be mixed. In FIG. 7, the broadcast terminal 1 600-1 and the distributor 1 400-1 are represented as a device that simultaneously receives the first broadcast content and the second broadcast content. On the other hand, if there is no broadcast content to be mixed, the content mixer 350 transmits the second broadcast content to the corresponding broadcast terminal 600-N using the broadcast communication unit 330, and outputs the content 320. Transmits the second broadcast content to a specific output terminal. At this time, the content mixing unit 350 broadcasts the second broadcast content by using the HFC-IP broadcast communication module 332 based on the broadcast path 600-N identified in the network management table. 2).

If there is broadcast content to be mixed, the content mixing unit 350 mixes a plurality of broadcast content (ie, first broadcast content and second broadcast content) to be mixed into one broadcast content (S713). In this case, the content mixing unit 350 extracts audio data and video data included in the first and second broadcast contents, converts the plurality of audio data into one sound source data, and simultaneously extracts the plurality of video data into a predetermined area. The plurality of video data is converted into one video data so as to be respectively output on the separated screen.

Next, the content mixing unit 350 uses the UTP-IP broadcasting communication module 331 of the broadcasting communication unit 330 to designate the broadcasting terminal 1 600-1 designated as a destination of both the first broadcasting content and the second broadcasting content. In step S715, the mixed broadcast content is transmitted. Then, the content mixing unit 350 transmits the mixed broadcast content to the output terminal 1 OUT1 of the content output unit 320 designated as an output path of both the first broadcast content and the second broadcast content, thereby distributing the distributor 1 (400). In step S717, the mixed broadcast content is transmitted.

In addition, the content mixing unit 350 uses the HFC-IP broadcast communication module 332 to receive a second broadcast content without receiving a plurality of broadcast contents in duplicate. The broadcast content is transmitted (S719). The content mixing unit 350 transmits the second broadcast content to the output terminal 2 OUT2 of the content output unit 320 designated only as the output path of the second broadcast content, thereby distributing the second broadcast to the distributor 2 400-2. Deliver the content (S721). At this time, the volume adjusting module 351 of the content mixing unit 350 increases or decreases the audio volume of the second broadcast content transmitted to the output terminal 2 (OUT2) based on the volume increase information for each output terminal. Let's do it.

Meanwhile, the second broadcast content received in step S705 may include an output device identification list. In this case, the content mixing unit 350 transmits the second broadcast content including the output device identification list to the output terminal 2 OUT2 of the content output unit 320, and the distributor 2 connected to the output terminal 2 OUT2. 400-2 distributes the second broadcast content only to an output device corresponding to the output device identification list. In addition, when the broadcast reservation time is included in the second broadcast content received in step S705, the content mixing unit 350 proceeds to step S707 after the broadcast reservation time arrives.

8 is a flowchart illustrating a method of selectively mixing and transmitting broadcast content in a premises broadcasting service device according to another embodiment of the present invention.

In the description with reference to FIG. 8, the premises broadcasting service apparatus 300 transmits the first broadcast content to the broadcast terminal 1 600-1 and the distributor 1 400-1 and simultaneously broadcast terminal 2 600-2 and the distributor. Receiving, from the input device 1 (200-1), the third broadcast content transmitted to the broadcast terminal 1 (600-1) and the distributor 1 (400-1) while transmitting the second broadcast content to the second (400-2). Assume that you do.

Referring to FIG. 8, the content mixing unit 350 of the premises broadcasting service device 300 uses the broadcast communication unit 330 and the content output unit 320 to transmit the first broadcast content to the broadcast terminal 1 600-1. The content input unit 310 is connected to the external input device 1 (200-) while transmitting to the distributor 1 (400-1) and transmitting the second broadcast content to the broadcast terminal 2 (600-2) and the distributor 2 (600-2). The third broadcast content is received from 1) and transmitted to the content mixing unit 350 (S801, S803, S805, S807, and S809).

The content mixing unit 350 receiving the third broadcast content from the input apparatus 1 200-1 checks identification information (ie, IN1) of the input signal line from which the third broadcast content is received (S811). Next, the volume adjusting module 351 of the content mixing unit 350 increases or decreases the audio volume of the third broadcast content based on previously stored volume increase / decrease information for each input signal line.

Next, the content mixing unit 350 checks the activated output terminal identification information (ie, OUT1) corresponding to the identified input signal line identification information IN1 in the mixing matrix table of the storage unit 340 (S813). . In other words, since the external input device 200 -N only transmits the broadcast content to the premises broadcasting service device 300, it cannot transmit information such as additional terminal identification list and output terminal identification information to the premises broadcasting service device 300. The content mixing unit 350 checks output terminal identification information (that is, OUT1), which is a path through which the third broadcast content is output, based on the mixing matrix table of the storage unit 340 set by the manager. In addition, the content mixing unit 350 extracts broadcast terminal identification information corresponding to the input signal line identification information IN1 from the signal line table of the storage unit 340. Subsequently, the content mixing unit 350 uses the extracted broadcasting terminal identification information and the network management table of the storage unit 340, so that the broadcasting terminal 600-N designated as the destination of the third broadcasting content is connected to a plurality of broadcasting communication networks ( It checks which broadcast communication network is connected from among 510, 520, 530, and 540 (S815).

Next, the content mixing unit 350 checks whether the mixing target broadcast content exists based on the activation information of the mixing matrix table of the storage unit 340 (S817). In detail, the content mixing unit 350 checks whether broadcast content output to a specific output terminal is duplicated based on activation information of the mixing matrix table of the storage unit 340. In other words, as the new third broadcast content is received, the content mixing unit 350 determines whether there is another broadcast content simultaneously outputted on the same output path (ie, an output terminal) as the third broadcast content. Check based on the activation information of the table. In addition, the content mixing unit 350 is based on the extracted broadcast terminal identification information, the terminal designated as the destination of the third broadcast content from the broadcast terminal 600-N currently receiving the first broadcast content or the second broadcast content; Check if it exists.

Subsequently, if there is a broadcast terminal 600-N designated as a destination of all the plurality of broadcast contents or an output terminal designated as an output path of the plurality of broadcast contents, the content mixing unit 350 broadcasts the plurality of broadcast contents to one broadcast. The content is mixed (S819). In FIG. 8, output terminal 1 OUT1 is designated as an output path of the first broadcast content and the third broadcast content, and broadcast terminal 1 600-1 is used as a destination terminal of two broadcast contents (first and third broadcast contents). Is specified. At this time, the content mixing unit 350 extracts audio data and video data included in the first broadcast content and the third broadcast content, respectively, converts the plurality of audio data into one sound source data, and simultaneously extracts the plurality of video data. The first broadcast content and the third broadcast content are mixed into one broadcast content by converting the plurality of video data into one video data so as to be respectively output on a screen separated by a predetermined area.

Next, the content mixing unit 350 uses the UTP-IP broadcast communication module 331 of the broadcast communication unit 330 to the broadcast terminal 1 600-1 designated as a destination of the first broadcast content and the third broadcast content. The mixed broadcast content is transmitted (S821). Then, the content mixing unit 350 transmits the mixed broadcast content to the output terminal 1 OUT1 of the content output unit 320 designated as the output terminal of both the first broadcast content and the third broadcast content, thereby distributing the divider 1 (400). In step S823, the mixed broadcast content is transmitted. In this case, the content mixing unit 350 continuously transmits the second broadcast content to the broadcast terminal 2 600-2 and the output terminal 2 OUT2 by using the broadcast communication unit 330 and the content output unit 320.

FIG. 9 is a flowchart illustrating a method for performing load balancing of a hybrid network in an on-premises broadcasting service device according to an embodiment of the present invention.

In the description with reference to FIG. 9, it is assumed that the load is increased in the UTP-IP network 510.

Referring to FIG. 9, the content mixing unit 350 of the on-premises broadcasting service device 300 may designate one or more broadcast terminals 600 -N or distributors 400 -N to which broadcast contents are assigned through the procedure of FIG. 7 or 8. To transmit (S901). At this time, the content mixing unit 350 checks which broadcasting communication networks 510, 520, 530, and 540 are connected to each broadcasting terminal 600-N based on the network management table of the storage unit 340. The broadcast content is transmitted to the broadcast terminal 600-N using the broadcast communication modules 331, 332, 333, and 334 communicating with the corresponding broadcast communication networks 510, 520, 530, and 540.

Then, the connection path management unit 360 monitors the communication status of each heterogeneous broadcasting communication network 510, 520, 530, 540 by using the plurality of broadcasting communication modules 331, 332, 333, 334. The load rates of the frames 510, 520, 530, and 540 are measured and recorded in the network management table of the storage unit 340 (S903). At this time, the connection path management unit 360 continuously measures the data throughput being transmitted and received in each broadcast communication network 510, 520, 530, 540 using the plurality of broadcast communication modules 331, 332, 333, 334. By dividing the data throughput currently transmitted / received by the broadcast communications network 510, 520, 530, 540, the data throughput that the broadcast communications network 510, 520, 530, 540 can transmit / receive collectively. The load ratios of 510, 520, 530, and 540 can be calculated. Alternatively, the access path management unit 360 checks the amount of bandwidth being used by each broadcasting communication network 510, 520, 530, and 540, records the amount of bandwidth in the network management table of the storage unit 340, and records the specific broadcasting communication network 510, 520. The load ratio of the broadcast communication networks 510, 520, 530, and 540 may be calculated by dividing the bandwidth amounts of the corresponding broadcast communication networks 510, 520, 530, and 540 by the maximum bandwidth of the devices 530, 540. As another method, the connection path management unit 360 combines the data throughput, bandwidth, maximum data throughput, and maximum bandwidth of the broadcasting network 510, 520, 530, 540, and the broadcasting network 510, 520, 530. , The load factor of 540 may be calculated.

Next, the connection path manager 360 determines a load rate for each broadcast communication network 510, 520, 530, 540 based on the load rate of each broadcast communication network 510, 520, 530, 540 recorded in the network management table. It is checked whether the threshold (eg, 80%) has been exceeded (S905). Subsequently, when the load ratio of the specific broadcast communication networks 510, 520, 530, and 540 exceeds the threshold, the connection path management unit 360 connects to the broadcast communication networks 510, 520, 530, and 540. The terminal 600-N checks the network management table, and selects a plurality of broadcast terminals 600-N to be switched among the plurality of broadcast terminals 600-N (S907). In this case, the connection path manager 360 may determine the number of broadcast terminals 600-N to be switched based on the exceeded load ratio, and select the broadcast terminals 600-N corresponding to the determined number. For example, the connection path manager 360 receives 100 broadcast terminals 600-N connected to specific broadcast communication networks 510, 520, 530, and 540 to receive broadcast contents, and the broadcast communication networks 510, 520, and 530. If the load ratio of 540 is 90% (that is, when the load ratio exceeds the threshold value by about 10%), 12 broadcasts among 100 broadcasting terminals 600-N are used to lower the load ratio to a level below the threshold value. The terminal 600 -N may be selected as the broadcast terminal 600 -N to be switched.

Next, the access path management unit 360 selects the broadcast communication networks 510, 520, 530, and 540 to switch the network having a low load rate, based on the load ratio of each broadcast communication network recorded in the network management table (S909). Preferably, the connection path manager 360 may switch the broadcast communication networks 510, 520, 530, and 540 having the lowest load rates based on the load rates of the broadcast communication networks recorded in the network management table. , 540). In FIG. 9, it is described that the connection path manager 360 selects the HFC-IP network 520 as the path switching broadcasting network.

Next, the access path management unit 360 transmits the path switching request message including the identification information of the selected broadcast communication network to the broadcast terminal 600-N selected in step S907 (S911). At this time, the access path manager 360 uses the UTP-IP broadcast communication module 331 to communicate with the UTP-IP network 510, which is the access path of the broadcast terminal 600-N to switch the path, to the path change request. Send a message. In FIG. 9, identification information of the HFC-IP network 520 is included as the broadcasting communication network identification information.

Each broadcast terminal 600-N receiving the path switch request message activates the HFC-IP broadcast communication module based on the broadcast communication network identification information included in the path switch request message (S913). Next, the broadcast terminal 600-N transmits a route switching notification message including its own terminal identification information to the premises broadcasting service device 300 via the HFC-IP network 520 (S915).

Subsequently, when the route switching notification message is received from the HFC-IP broadcasting communication module 332, the content mixing unit 350 checks the identification information of the broadcasting terminal 600-N included in the route switching notification message, and then the terminal. Based on the identification information, the broadcast content being transmitted to the broadcasting terminal 600-N via the UTP-IP network 510 is then transferred to the broadcasting terminal 600-N via the HFC-IP network 520. It transmits (S917).

Next, if the broadcast content is normally received through the HFC-IP broadcast communication module, the broadcast terminal 600-N deactivates the UTP-IP broadcast communication module (S919). That is, even if the broadcast terminal 600-N receives the route switching request message from the premises broadcasting service device 300 in step S911 in order to receive an uninterrupted broadcast content from the premises broadcasting service device 300, the broadcast terminal 600-N broadcasts the HFC-IP broadcast. The UTP-IP broadcast communication module is activated until the broadcast content is received through the communication module. Accordingly, even if the access terminal 600-N switches the access path according to load balancing, the broadcast terminal 600-N continuously receives the broadcast content from the premises broadcasting service device 300 continuously.

As such, when the broadcast content is received through another broadcast communication network (ie, HFC-IP network), the broadcast terminal 600-N indicates that the path switching from the UTP-IP network 510 to the HFC-IP network 520 is completed. The indicated message is transmitted to the premises broadcasting service device 300 via the HFC-IP network 520 (S921).

Then, the connection path management unit 360 of the premises broadcasting service device 300 stores the identification information of the broadcasting terminal 600-N recorded in correspondence with the identification information of the UTP-IP network 510 of the storage unit 340. The identification information of the broadcast terminal 600-N is recorded in the terminal identification information field 68 corresponding to the identification information of the HFC-IP network 520 and deleted from the network management table (S923). That is, the connection path management unit 360 updates the network management table by recording in the network management table that the broadcast terminal 600-N having switched the access path has connected to the HFC-IP network 520.

FIG. 10 is a flowchart illustrating a method of switching a connection path of a broadcast terminal to another broadcast communication network according to a request of an administrator in an on-premises broadcasting service device according to an embodiment of the present invention.

Referring to FIG. 10, the content mixing unit 350 of the on-premises broadcasting service device 300 transmits the first broadcast content to a plurality of designated broadcast terminals 600 -N using the broadcast communication unit 330 (S1001). .

Subsequently, the on-premises broadcasting service device 300 receives an interruption of the broadcasting service for the specific broadcasting communication network 510, 520, 530, 540 from the plurality of broadcasting communication networks 510, 520, 530, 540 from the manager (S1003). That is, the on-premises broadcasting service device 300 performs a line change, maintenance, and the like in a specific broadcasting communication network 510, 520, 530, 540, and disconnects communication in the corresponding broadcasting communication network 510, 520, 530, 540. As expected, the manager receives an interruption of the broadcast service for the corresponding broadcast communication networks 510, 520, 530, and 540. At this time, the premises broadcasting service device 300 may receive a broadcast service stop signal from the administrator through an input means (for example, a keyboard, a mouse, etc.) provided by the administrator, and from a broadcasting terminal 600-N of a manager located at a remote location. A broadcast service stop signal may also be received. In FIG. 10, it is described that the premises broadcasting service device 300 receives an interruption of a broadcasting service for the UTP-IP network 510.

Then, the access path management unit 360 checks the plurality of broadcast terminals 600-N connected to the UTP-IP network 510 in the network management table of the storage unit 340, and checks the UTP-IP broadcasting communication module ( In step S1005, the UTP-IP network interruption message is transmitted to the plurality of broadcast terminals 600-N identified using the terminal 331.

Next, as the broadcast terminal 600-N receives the UTP-IP network interruption message, the broadcast terminal 600-N activates one of the other communication modules except for the UTP-IP communication module and identifies itself by using the activated communication module. The route switching notification message including the information is transmitted to the premises broadcasting service device 300 (S1007 and S1009). In FIG. 10, the broadcasting terminal 600-N connected to the UTP-IP network 510 activates the HFC-IP broadcasting communication module, and routes to the premises broadcasting service device 300 via the HFC-IP network 520. It is described to send a switch notification message.

Subsequently, when the route switching notification message is received from the HFC-IP broadcasting communication module 332, the content mixing unit 350 checks the identification information of the broadcasting terminal 600-N included in the route switching notification message, and then the terminal. Based on the identification information, the broadcast content being transmitted to the broadcasting terminal 600-N via the UTP-IP network 510 is subsequently transmitted to the broadcasting terminal 600-N via the HFC-IP network 520. (S1011).

If the broadcast content is normally received through the HFC-IP broadcast communication module, the broadcast terminal 600-N deactivates the UTP-IP broadcast communication module (S1013). That is, even if the broadcast terminal 600-N receives the broadcast stop message in step S1005 in order to receive the broadcast content without interruption from the premises broadcasting service apparatus 300, the broadcast content is broadcast through the HFC-IP broadcasting communication module. The UTP-IP broadcast communication module is activated until it is received from the service device 300. Subsequently, the broadcast terminal 600 -N transmits a message indicating that the path switching is completed from the UTP-IP network 510 to the HFC-IP network 520 via the HFC-IP network 520 via the premises broadcasting service device 300. (S1015).

Then, the access path management unit 360 deletes the identification information of the broadcasting terminal 600-N recorded corresponding to the identification information of the UTP-IP network 510 from the network management table of the storage unit 340, and deletes the HFC. The identification information of the broadcast terminal 600-N is recorded in the terminal identification information field 68 corresponding to the identification information of the IP network 520 (S1017). That is, the connection path manager 360 updates the network management table by recording in the network management table that the broadcast terminal 600-N has connected to the HFC-IP network 520. Subsequently, the access path manager 360 completes the path switching to all the broadcast terminals 600-N connected from the UTP-IP network 510 to other broadcast communication networks 510, 520, 530, and 540 based on the network management table. If all is completed by checking whether or not it is completed, a path switching completion message is output to a monitor or a speaker, or transmitted to an administrator's broadcasting terminal 600-N to allow the administrator to proceed with the work on the UTP-IP network 510. .

Next, when the maintenance work in the UTP-IP network 510 is completed by the administrator, the premises broadcasting service device 300 receives the recovery information of the UTP-IP network 510 from the administrator or the broadcast terminal of the administrator. Received from (600-N) (S1019). Then, the connection path manager 360 controls the HFC-IP broadcast communication module 332, the HFC-CATV broadcast communication module 333, and the HFC-ATSC broadcast communication module 334 except for the UTP-IP broadcast communication module 331. By using the STP broadcasts a message indicating that the recovery of the UTP-IP network 510 is completed (S1021). That is, the connection path management unit 360 includes the HFC-IP network 520, the HFC-CATV network 530, and the HFC-ATSC network 540 except for the UTP-IP network 510. Broadcast a message indicating that recovery is complete

Then, the broadcast terminal 600-N receives the recovery message of the UTP-IP network 510, and thus, when a failure occurs in the currently connected broadcast communication network 520, 530, or 540, or the broadcast communication quality is poor, The access path may be changed to the UTP-IP network 510.

On the other hand, the premises broadcasting service device 300 provides the administrator with broadcasting terminal information connected to the broadcasting communication networks 510, 520, 530, and 540, respectively, of which the administrator switches the connection switching command of the specific broadcasting terminal 600-N. It is also possible to change the connection path of the broadcast terminal 600-N to other broadcast communication networks 510, 520, 530, and 540 by receiving from. For example, the on-premises broadcasting service device 300 receives an operation signal from the manager to change the connection path of the broadcasting terminal 1 600-1 connected to the UTP-IP network 510 to the HFC-CATV network 530. In this case, the connection path manager 360 may change the connection path of the broadcast terminal 1 600-1 from the UTP-IP network 510 to the HFC-CATV network 530 based on the manipulation signal.

Through the method of FIG. 10, the administrator can access all the broadcasting terminals 600-N that are connected to a specific broadcasting network 510, 520, 530, 540 that require maintenance work. By switching the access to, the maintenance work for the broadcast network (510, 520, 530, 540) can be carried out without interruption of the broadcast service.

11 is a flowchart illustrating a method of switching a connection path of a broadcast terminal based on broadcast communication quality in an on-premises broadcasting service device according to an embodiment of the present invention.

Referring to FIG. 11, the content mixing unit 350 of the on-premises broadcasting service device 300 transmits the first broadcast content to a plurality of designated broadcast terminals 600 -N using the broadcast communication unit 330 (S1101). .

Then, the broadcast terminal 600-N measures the broadcast communication quality with the premises broadcasting service device 300 (S1103). That is, the broadcast terminal 600-N measures a packet loss rate, an audio packet delay time, a video packet delay time, and the like based on the packet received from the premises broadcasting service device 300. Subsequently, the broadcast terminal 600-N transmits the measured broadcast communication quality information to the premises broadcasting service device 300 at regular intervals (S1105).

Then, specific broadcast communication modules 331, 332, 333, and 334 included in the broadcast communication unit 330 receive broadcast communication quality information from the broadcast terminal 600 -N, and the connection path manager 360 transmits the broadcast. After recording communication quality information (voice delay time, video delay time, packet loss rate) in a network management table, the broadcast communication quality information is analyzed to determine whether the broadcast communication quality of the broadcast terminal 600-N is good or poor. It determines (S1107). For example, the access path management unit 360 broadcasts because the broadcast communication quality of the broadcast terminal 600-N is poor when the packet loss rate exceeds 1% or the voice delay time or the video delay time exceeds 150ms. It may be determined that the content is not normally provided.

Next, if it is determined that the broadcast communication quality of the broadcast terminal 600-N is poor, the access path manager 360 excludes the UTP-IP network 510, which is a broadcast communication network to which the broadcast terminal 600-N is connected. Next, among the HFC-IP network 520, the HFC-CATV network 530, and the HFC-ATSC network 540, the broadcast communication network 520, 530, 540 to be switched to the access path is selected with reference to the network management table (S1109). , S1111). At this time, the access path management unit 360 checks the load rate for each broadcast communication network 520, 530, and 540 in the network management table, and selects the broadcast communication network to which the load load is least among the broadcast communication networks. have.

After the connection path management unit 360 selects a broadcast communication network to switch to the access path, the broadcast terminal 600-N receives a path change request message including the identification information of the broadcast communication network using the UTP-IP broadcast communication module 331. (S1113). Then, the broadcast terminal 600-N activates the HFC-IP broadcast communication module based on the broadcast communication network identification information (that is, the HFC-IP network identification information) included in the path switching request message (S1115). Subsequently, the broadcast terminal 600 -N transmits a route switching notification message including its identification information to the premises broadcasting service device 300 via the HFC-IP network 520 (S1117).

Then, the HFC-IP broadcasting communication module 332 receives the route switching notification message, and the content mixing unit 350 checks the identification information of the broadcasting terminal 600-N included in the route switching notification message. The broadcast terminal 600-N using the HFC-IP broadcast communication module 332 transmits the broadcast content being transmitted to the broadcast terminal 600-N through the UTP-IP broadcast communication module 331 based on the terminal identification information. Next, transmission is performed (S1119). That is, the access path management unit 360 transmits the broadcast content that is being transmitted to the broadcasting terminal 600-N via the UTP-IP network 510 via the HFC-IP network 520 through the broadcasting terminal 600-N. Then transmit.

Next, if the broadcast content is normally received through the HFC-IP broadcast communication module, the broadcast terminal 600-N deactivates the UTP-IP broadcast communication module (S1121). Subsequently, the broadcast terminal 600-N broadcasts a premises broadcast via the HFC-IP network 520 through a HFC-IP network 520 indicating a completion of the path switching from the UTP-IP network 510 to the HFC-IP network 520. It transmits to the service device 300 (S1123).

Then, the connection path management unit 360 updates the network management table by recording in the network management table that the broadcast terminal 600-N having switched the access path has connected to the HFC-IP network 520 (S1125).

FIG. 12 is a flowchart illustrating a method for designating a connection path of a broadcast terminal requested for uplink broadcasting in a premises broadcasting service device according to an embodiment of the present invention.

Referring to FIG. 12, the broadcast terminal 600 -N receives the first broadcast content from the premises broadcasting service device 300 through the UTP-IP network 510 and outputs the first broadcast content to the speaker and the monitor. Receive a start signal (S1201).

Then, the broadcast terminal 600-N transmits a message requesting selection of an uplink broadcasting network to the premises broadcasting service device 300 via the currently connected UTP-IP network 510 (S1203). Then, the UTP-IP broadcasting communication module 331 of the premises broadcasting service device 300 receives an uplink broadcasting network selection request message from the broadcasting terminal 600-N, and the access path manager 360 receives the broadcasting communication network 510. The load rate for each of the 520, 530, and 540 is checked in the network management table of the storage unit 340, and a broadcast communication network having the lowest load rate is selected as the uplink communication network of the broadcast terminal 600-N (S1205). S1207). At this time, the access path management unit 360 excludes the UTP-IP network 510, which is a reception path of the uplink communication network selection request message, from the selection target communication network. In FIG. 12, it is described that the access path management unit 360 selects the HFC-IP network 520 as the uplink broadcasting network.

In this way, the access path management unit 360 selects an uplink broadcasting network, and then broadcasts an uplink broadcasting network response message including the identification information of the broadcasting communication network 510 using the UTP-IP broadcasting communication module 331. N) (S1209). Then, the broadcasting terminal 600-N activates the HFC-IP broadcasting communication module based on the HFC-IP network identification information included in the uplink broadcasting network response message, and uses the HFC-IP broadcasting communication module to broadcast the premises. The broadcast start request message is transmitted to the service device 300 in operation S1211 and S1213. At this time, the broadcast terminal 600-N includes the terminal identification list, the input signal line identification information, and the output terminal identification information received from the user in the broadcast start request message.

Next, the content mixing unit 350 forms a session with the broadcasting terminal 600-N by using the HFC-IP broadcasting communication module 332, and then, from the broadcasting terminal 600-N, performs a second session with the broadcasting terminal 600-N. Broadcast content is provided (S1215, S1217). That is, the on-premises broadcasting service apparatus 300 forms a session with the broadcasting terminal 600-N via the HFC-IP network 520, and transmits the second broadcasting content from the broadcasting terminal 600-N through the session. It is provided.

Then, the content mixing unit 350 checks the input signal line identification information and the output terminal identification information included in the broadcast start request message, and stores the output terminal activation information corresponding to the identified input signal line identification information. ) Is recorded in the mixing matrix table (S1219). In addition, the content mixing unit 350 is based on the broadcast terminal identification information and the network management table of the storage unit 340, the broadcast terminal 600-N designated as the destination of the second broadcast content which broadcast communication network (510, 520) , 530, 540 is checked (S1221).

Next, the content mixing unit 350 checks whether the mixing target broadcast content exists based on the activation information of the mixing matrix table of the storage unit 340 (S1223). In detail, the content mixing unit 350 checks whether broadcast content output to a specific output terminal is duplicated based on activation information of the mixing matrix table of the storage unit 340. In addition, the content mixing unit 350 checks whether a broadcast terminal 600-N in which a plurality of broadcast contents are designated as a destination exists simultaneously.

If the mixing target broadcasting content exists, the content mixing unit 350 mixes the first broadcasting content and the second broadcasting content, and then designates a broadcasting terminal 600-N designated as a destination of both the first broadcasting content and the second broadcasting content. Alternatively, the mixed broadcast content is transmitted to the distributor 400 -N (S1225). On the other hand, the content mixing unit 350 transmits the second broadcast content to the broadcast terminal 600-N or the distributor 400-N designated as a destination of the second broadcast content if there is no broadcast target content. .

Through the method of FIG. 12, the premises broadcasting service apparatus 300 according to the present invention provides a broadcasting service by differentiating a downlink broadcasting channel which is a broadcast subject and an uplink broadcasting channel where the broadcasting terminal 600-N is a subject. do. That is, the broadcast terminal 600-N activates the first broadcast communication module required for downlink broadcast, receives the first broadcast content from the premises broadcasting service device 300, and activates the second broadcast communication module required for uplink broadcast. By providing the second broadcast content to the premises broadcasting service device 300, the load of the heterogeneous broadcasting communication networks 510, 520, 530, and 540 is distributed. In addition, the present invention maintains the quality and speed of the premises broadcasting service by dualizing the paths of upstream and downstream broadcasting.

While the specification contains many features, such features should not be construed as limiting the scope of the invention or the scope of the claims. In addition, the features described in the individual embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in the singular < Desc / Clms Page number 5 > embodiments herein may be implemented in various embodiments individually or in combination as appropriate.

Although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that all described operations are performed to obtain a sequence of sequential orders, or a desired result . In certain circumstances, multitasking and parallel processing may be advantageous. It should also be understood that the division of various system components in the above embodiments does not require such distinction in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

200: input device 300: premises broadcasting service device
310: content input unit 320: content output unit
330: broadcasting communication unit 331: UTP-IP broadcasting communication module
332: HFC-IP broadcasting communication module 333: HFC-CATV broadcasting communication module
334: HFC-ATSC broadcasting communication module
340: Storage unit 350: Content mixing unit
351: volume control module 360: connection path management unit
400: Splitter 510: UTP-IP Network
520: HFC-IP network 530: HFC-CATV network
540: HFC-ATSC network 600: broadcasting terminal

Claims (9)

An on-premises broadcasting service apparatus supporting selective mixing of broadcasting contents in a hybrid network broadcasting communication environment in which a plurality of heterogeneous broadcasting communication networks are distributed,
A plurality of broadcast communication modules each communicating with a plurality of heterogeneous broadcast communication networks distributed in the hybrid network;
A content input unit connected to a plurality of input devices through a plurality of input terminals;
A content output unit forming an output path with each distributor through a plurality of output terminals;
A storage unit storing a mixing matrix table in which at least one output path activation information is recorded corresponding to each input signal line, and a signal line table in which terminal identification information is recorded corresponding to each input signal line; And
One or more input signal lines are formed corresponding to each input terminal of the content input unit. When broadcast content is received through a first input signal line, the output path and terminal identification information activated in correspondence with the first input signal line are displayed. Each of the broadcasts having the terminal identification information identified by using at least one of the plurality of broadcast communication modules by transmitting the broadcast content to the distributor through the identified output path by checking each of the mixing matrix table and the signal line table in the storage unit. The broadcast content is transmitted to a terminal, and whether or not there is a plurality of broadcast contents whose output paths overlap with each other based on the output path activation information recorded in the mixing matrix table of the storage unit has the same output path. Content group to be mixed first with a plurality of broadcast content Includes; selected as content mixing unit to mix the broadcast contents belonging to the first group of mixing the target content as a broadcast content
The content mixing unit,
When the broadcast content including the input signal line identification information and the output path is received from the user's broadcast terminal through any one of the plurality of broadcast communication modules, the input signal line identification information and the output path included in the broadcast content are checked. The activation information on the output path thus confirmed is recorded in the mixing matrix table of the storage unit corresponding to the input signal line identification information to update the mixing matrix table, and based on the output path activation information of the updated mixing matrix table, the output path And confirming whether or not the overlapping broadcast content exists and, if present, selecting a plurality of broadcast content having the same output path as the second mixing target content group and mixing the broadcast content into one broadcast content. The method of claim 1,
The content mixing unit,
Extract the audio data and the video data included in each of the plurality of broadcast contents, convert the extracted plurality of audio data as one sound source data, and extract the plurality of video data so that the extracted plurality of video data appear on each separated screen. Converting into a single video data, and mixing a plurality of broadcast content. delete The method of claim 2,
The content mixing unit,
The volume increase and decrease information for each input signal line and output path is stored, and based on the volume increase and decrease information, the audio volume of the broadcast content received from each input signal line is increased or decreased and transmitted to each output path. On-premises broadcasting service device characterized in that to increase or decrease the audio volume of the broadcast content. The method according to any one of claims 1, 2, and 4,
The storage unit stores the broadcast communication network connection information for each broadcast terminal,
And the content mixing unit transmits the broadcast content to the corresponding broadcast terminal using a broadcast communication module communicating with the broadcast communication network to which the broadcast terminal is connected, based on the broadcast communication network access information for each broadcast terminal. The method according to any one of claims 1, 2, and 4,
If the load ratio of each heterogeneous broadcasting network distributed in the hybrid network is measured and the load ratio of the first broadcasting network exceeds a threshold, one or more broadcasting terminals to be switched among the broadcasting stations connected to the first broadcasting network are selected. And a connection path management unit for converting the selected one or more broadcasting paths from the first broadcasting communication network to the second broadcasting communication network.
And the content mixing unit, subsequently transmitting broadcast content to the broadcast terminal switched to the access path using a broadcast communication module communicating with the second broadcast communication network. The method according to claim 6,
The connection path management unit,
Upon receiving the uplink broadcasting network selection request message from the first broadcasting terminal, the first broadcasting terminal checks the downlink broadcasting network that receives the broadcast content, and raises the broadcasting communication network different from the identified downlink broadcasting network to the first broadcasting terminal. Selected as a broadcasting network,
And the content mixing unit receives broadcast content from the first broadcast terminal through the selected upstream broadcast communication network, and transmits the broadcast content to a designated broadcast terminal or distributor. The method according to claim 6,
The connection path management unit,
Receiving a broadcast communication network information to stop a broadcast service from the administrator, and the on-premises broadcasting service apparatus, characterized in that for converting the connection path of the broadcast terminal connected to the received broadcast communication network from the scheduled broadcast communication network to another broadcast communication network. The method according to claim 6,
The connection path management unit,
An on-premises broadcasting service device, characterized in that the connection path of the broadcast communication quality deterioration is changed by analyzing whether the broadcast communication quality of each broadcast terminal is deteriorated based on the broadcast communication quality information reported from the broadcast terminal.

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