KR100804036B1 - Monitering system of digital broadcasting - Google Patents

Abstract

A digital broadcasting channel monitoring system is provided to analyze a broadcasting state automatically by channel of a digital broadcasting signal transmitted from a broadcasting station and display the analysis result to an administrator through a UI(User Interface) unit, so that the administrator can easily and quickly determine whether errors are present in the broadcasting signal. An adaptor(110) receives a digital broadcasting signal transmitted from a broadcasting station in real time, and converts the received digital broadcasting signal into TS(Transport Stream) data. A broadcasting state analyzer(130) comprises an AV(Audio/Video) state analyzer(133) and a TS state analyzer(136). The AV state analyzer analyzes an AV state by channel by decoding an AV signal of the TS data transmitted from the adaptor. The TS state analyzer analyzes a TS state by channel by analyzing PSI(Program Specific Information) of the transmitted TS data. A local UI(User Interface) unit(140) displays the AV state and the TS state transmitted from the broadcasting state analyzer.

Description

Digital Broadcasting Channel Monitoring System {MONITERING SYSTEM OF DIGITAL BROADCASTING}

The present invention relates to a system for monitoring a state of a digital broadcasting channel, and more particularly, a state collection server installed in a cable broadcasting establishment that receives a digital broadcasting signal transmitted from a broadcasting station in real time and transmits it to each subscribing home. Analyzes and monitors the status of the received broadcast signal for each channel to alert the manager when an error occurs in the received broadcast signal.

The integrated status monitoring server installed in the central office that manages several cable broadcasting offices that belong to the integrated status signal of the broadcasting status sent from each cable broadcasting office and displays an alarm if there is an error signal among the received broadcasting status signals. As a system to notify the administrator

Digital broadcasting channel monitoring system for stably maintaining the broadcasting state of the digital broadcasting signal transmitted from the broadcasting station to each home, and prevent the broadcasting accident in advance.

Recently, due to the expansion of digital broadcasting service, the total number of broadcasting channels and programs to be managed by cable broadcasting establishments (SO, System Operator, MSO; Multiple System Operator, etc.) significantly increases compared to analog broadcasting, and it is necessary to manage and monitor them effectively. It is increasing.

In addition, a single cable broadcasting (SO) group is gradually developing into an MSO form. In such a case, the MSO needs to monitor the broadcasting status of each SO in various regions belonging to the MSO and integrate it at the MSO level to manage the broadcasting status.

Despite this need, the monitoring method of broadcasting status currently being implemented in cable broadcasting establishments

After attaching a set-top box-type decoder to the cable broadcasting office for the number of programs broadcast by each channel, the environment is configured in hardware, and the manager directly monitors the broadcast status of each program of the corresponding channel.

That is, the administrator monitors the broadcast status of the corresponding channel while the administrator directly sees and hears a broadcast signal transmitted from each set-top box and is displayed in the form of AV (Audio, Video) on the monitor.

As such, the conventional digital broadcasting status monitoring method requires a set-top box as many as the number of programs, which requires a lot of cost and a large installation space, and the administrator must directly watch and listen to the AV of each channel through the monitor. There is discomfort.

The present invention has been made to solve the above problems, and automatically analyzes the AV status and TS status for each channel of the broadcast signal received from the state collection server, and automatically receives the received state of the received broadcast signal and displays it through the UI unit. When the administrator checks the broadcast status directly, and if there is an error in the analyzed broadcast status, it sends the alarm signal to the administrator through SMS, speaker, and lamp, so that the broadcast status can be maintained quickly and stably. The present invention aims to provide a digital broadcasting channel monitoring system that can prevent broadcasting accidents in advance.

Digital broadcasting channel monitoring system of the present invention for achieving the above object

A state collection server which receives a digital broadcast signal transmitted from a broadcasting station in real time and analyzes the AV state and TS state of the received broadcast signal for each channel;

And a state integrated monitoring server for receiving the analysis result data of the broadcast signal for each channel from the plurality of state collection servers through a communication network and integrating and displaying them.

And an SMS server for receiving a status error signal from the state collection server or the state integrated monitoring server, or both, through a communication network, and sending a text message to the registered mobile phone.

The state collection server receives a digital broadcast signal transmitted from a broadcasting station in real time, and converts it into TS data, and decodes an AV signal of TS data transmitted from the adapter to analyze the AV state for each channel. And a broadcasting state analysis unit including a TS state analysis unit analyzing the TS state for each channel by analyzing PSI signals of the transmitted TS data, and combining the AV state and the TS state transmitted from the broadcast state analysis unit by channel. It comprises an integrated transmission unit for transmitting this to the state integrated monitoring server through a communication network, and a local UI unit for displaying the AV state and TS state transmitted from the broadcast state analysis unit,

The adapter includes a tuner unit for converting a received broadcast signal into TS data, an FPGA unit connected to the tuner unit to generate an RF characteristic value of the received broadcast signal, and connected to the FPGA unit to the TS data and RF characteristic. And a bridge unit for transmitting a value to the broadcast state analysis unit, wherein the broadcast state analysis unit analyzes a reception state of a received broadcast signal by comparing the transmitted RF characteristic value with a previously stored reference value. Characterized in that it further comprises wealth,

The state integrated monitoring server includes an integrated receiving unit for receiving the analysis result data of the broadcast signal from the integrated transmitting unit of the state collecting server through a communication network, and a data classification unit for separating the data transmitted from the receiving unit for each channel; It characterized in that it comprises an integrated UI unit for displaying data transmitted from the data classification unit,

The local UI unit of the state collection server and the integrated UI unit of the state integrated monitoring server are connected to an alarm unit that emits an alarm sound or flashes an alarm lamp when there is an error in the received broadcast signal.

According to the present invention having the above-described configuration, whether or not a broadcast state of each channel of a digital broadcast signal transmitted from a broadcasting station, that is, whether a broadcast signal of each channel exists, whether or not a broadcast signal of a received channel can be reproduced by AV, By analyzing the RF characteristic values (receiving strength, inflow of noise, etc.) of the broadcasting signal automatically and displaying them to the administrator through the UI (User Interface), whether the manager has an error (error) in the received broadcasting signal The liver can judge quickly,

If there is an abnormality in the received broadcast signal, there is an effect of preventing a broadcast accident in advance by informing the administrator of the corresponding alarm information through a mobile phone short message (SMS), a speaker, a lamp, and the like to take countermeasures.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 shows a schematic configuration diagram of a system according to the present invention, FIG. 2 shows a detailed configuration diagram of a state collection server, and FIG. 3 shows a detailed configuration diagram of a state integrated monitoring server.

As shown in FIG. 1, the system of the present invention includes a state collection server 100, a state integrated monitoring server 200, and an SMS server 300.

The state collection server 100 is installed in a wired broadcasting station that receives a broadcast signal from a broadcasting station wirelessly and transmits it to each subscribed home, and the state integrated monitoring server 200 manages various wired broadcasting establishments to which it belongs. It is installed in the central office. The central office may be a place that only manages a number of cable broadcasting (SO), it may be one of the cable broadcasting (MSO) for transmitting a broadcast signal to each home.

SMS server 300 for transmitting a short message to a registered mobile phone is a general technology, so a detailed description thereof will be omitted. Hereinafter, the state collection server 100 and the state integrated monitoring server 200 will be described with reference to FIGS. 2 and 3. It demonstrates concretely.

As shown in FIG. 2, the state collection server 100 includes an adapter 110, a broadcast state analysis unit 130, an integrated transmission unit 150, a local UI unit 140, and a central control unit 120. .

The adapter 110 receives a wireless broadcast signal transmitted from a broadcasting station and converts the data into TS data. In addition, it generates the RF characteristic value of the broadcast signal transmitted and received from the broadcast station.

The adapter 110 includes a tuner unit 111, an FPGA unit 115, and a bridge unit 117.

The tuner 111 converts a digital broadcast signal received in real time into TS (Transport Stream) data. The configuration of the tuner unit 111 will be described in more detail. The down-converter 112 for down-receiving an analog-type digital broadcast signal (a digital broadcast is also converted to analog and transmitted during a wireless transmission of the broadcast signal). And a demodulator 113 for demodulating the digital broadcast signal in analog form through the down converter 112 and converting it into a digital broadcast signal.

The TS data is composed of a header and a packet, the header contains PSI (Program Specific Information), the packet contains AV information and caption information, and a part of PSI information (Program Specific Information). There may be. In this case, the AV information is an audio / video broadcast (program) to be broadcast through a TV, and the PSI information is PID (Packet Identification Description) as information related to each program. The PID has affiliation information of a TS data packet.

One broadcast data may include several broadcast programs. The PID has information on how many broadcast programs are included in the packet of the belonging TS data, whether there are video, audio and subtitles in each broadcast program, if there are any, and whether there is auxiliary data.

The FPGA unit 115 generates RF characteristic values of the broadcast signals received by the adapter 110. The RF characteristic values include MER, BER, SNR, EVM, reception strength values, and whether broadcast signals are received.

The MER (Modulation Error Ratio) is a corresponding digital signal value of the signal-to-noise generated in the analog system and is a measured value of the demodulated digital signal. The MER measures the ratio of the Erie level to the average level of the QAM (Orthogonal Amplitude Modulated Digital Broadcasting signal) signal to inform the channel damage in advance.

The BER (Bit Error Ratio) is a ratio of the wrong number of bits to the total number of transmitted bits, indicating better performance when more negative codes are used.

The Error Vector Magnitude (EVM) is the difference between the ideal waveform and the measured waveform.

The SNR (Signal to Noise Raito) is a signal-to-noise ratio and represents a ratio of noise introduced during a transmission of a broadcast signal.

The default values of these RF characteristic values are extracted from the tuner unit 111, and the FPGA unit 115 generates RF characteristic values by processing a part of the default values extracted from the tutor unit. A tuner 111 for extracting such RF characteristic values is typical of TDVSH002F products of LG Electronics. Therefore, detailed description thereof will be omitted.

In addition, the FPGA unit 115 processes the demodulated broadcast data through the demodulator 113 of the tuner unit 111 into TS data that can be processed by the broadcast state analyzer 130.

 The bridge unit 117 receives the TS data and RF characteristic values and transmits them to the central controller 120.

The central controller 120 separates the received TS data and the RF characteristic value and transmits the TS data and the RF characteristic value to the broadcast state analyzer 130. That is, the TS data is transmitted to the AV status analyzer 131, the PSI of the TS data is transmitted to the TS status analyzer 134, and the RF characteristic value is transmitted to the received signal status analyzer 137.

Then, the data required by the central control unit 230 of the state integrated monitoring server 200 is transmitted to the integrated receiving unit 210 of the state integrated monitoring server 200 through the integrated transmission unit 150.

The broadcast state analysis unit 130 receives the broadcast state received by the AV state analysis unit 131 analyzing the AV state of the TS data, the TS state analysis unit 134 and the adapter 110 analyzing the TS state. It comprises a received signal state analysis unit 137 for analyzing the.

Here, the AV state means a play state of audio / video, that is, whether replay is possible.

The TS state means whether the data state of the digital broadcast signal transmitted from the broadcast station, that is, whether the digital broadcast signal actually transmitted from the broadcast station includes all the digital broadcast signals that should be transmitted from the original broadcast station.

The reception state of a broadcast signal means whether a broadcast signal transmitted from a broadcast station has been received, if so, whether the reception sensitivity is received, whether noise has flowed in the process of being transmitted from the broadcast station, and the like.

The AV state analyzer 131 includes a decoder 132 that decodes an AV signal of TS data, and an AV analyzer 133 that analyzes the state of the AV signal decoded by the decoder 132 for each channel. .

The decoder 132 decodes all the input AV signals, but decoding of the AV signals in a region having an error (error) is not normally performed.

The AV analyzing unit 133 analyzes the decoding state of the AV signal decoded through the decoder 132 and determines the AV state as an error when the decoding time of the AV signal region which is not normally decoded exceeds the reference time. do. For example, when the decoding time of the AV signal region normally decoded among all AV signals belonging to one TS data is 60 seconds, and the decoding time of the AV signal region not normally decoded is 3 seconds, the reference time is 1 second. If so, the AV status at this time is determined to be an error. Here, the reference time may be set by the user through the local UI 140.

The TS state analysis unit 134 is a PSI analysis unit 135 for analyzing the PSI of the TS data, and the TS analysis unit 136 for analyzing the TS state of the TS data corresponding to the PSI analyzed by the PSI analysis unit for each channel. It is composed of

The PSI analyzing unit 135 analyzes the inputted PSI to determine which TS data (i.e., broadcasting channels), the number of broadcast programs included in the packet, the number of video and audio signals of each broadcast program, and the captions. Extracts information about the presence or absence of and transmits the information to the TS analyzer 136.

The TS analyzer 136 has a PSI for each channel (ie, TS data) provided by a broadcasting station. The TS analyzer 136 determines which TS data is corresponding to the PSI inputted through the PSI analyzer 135, and determines the PSI (PSI provided by the broadcasting station) and the PSI analyzer of the determined TS data ( 135) compare the PSI input. If the two PSIs do not match as a result of the comparison, that is, when the broadcasting station transmits broadcast data in a state in which some data is omitted or in a state in which broadcasting data to be included in another channel is added, the TS state is determined to be an error. .

For example, if the broadcasting station transmits two movies on channel 11, PSI (digital broadcasting can transmit several programs on one channel).

The PID of the PSI may be 11, 100, and 200. In this case, 11 denotes a broadcast channel, 100 denotes the address of the first movie, 200 denotes the PID address of the second movie, and with this, we transmit two films (programs) to channel 11 from the broadcasting station. It can be seen that.

Another PID may be 101, 102, 103, 104, etc., which informs detailed information about the first movie (PID 100). Here, when 101 is video, 102 is audio 1, 103 is audio 2, and 104 represents subtitles, we can see that the first movie consists of one video signal, two audio signals, and subtitles. .

As such, since the PSI has information related to digital broadcast data,

The TS analyzer 136 may analyze the PSI of the digital broadcasting data provided by the broadcasting station to the cable broadcasting establishment and the PSI transmitted through the PSI analyzer 135 to analyze the TS status.

The received signal state analyzing unit 137 analyzes the signal state extracting unit 138 receiving the RF characteristic value from the adapter 110 and the RF characteristic value transmitted from the signal state extracting unit 138 for each channel. The reception signal analysis unit 139 is configured. The received signal analyzer 139 analyzes the received signal state by comparing each transmitted RF characteristic value with a set reference value. For example, when the input SNR value is larger than the reference value, the reception signal state is determined as an error. The reference value of the received signal analyzer 139 may also be set by an administrator through the local UI 140.

The local UI 140 displays the AV status, the TS status and the reception status of the broadcast signal for each channel transmitted by the broadcast status analyzer 130 for analysis by the administrator. The local UI 140 includes a monitor for displaying an analysis result and a keyboard for an administrator's operation.

In addition, the local UI unit 140, if there is an error in the broadcast state analysis result of the received broadcast signal, the alarm unit 141 for emitting an alarm sound through the speaker or flashing the alarm lamp through the lamp, and the SMS server 300 The SMS command unit 142 for issuing a text message sending command is connected.

The integrated transmission unit 150 transmits the broadcasting state analysis result for each channel of the broadcasting state analysis unit 130 to the state collection server 100 through a communication network such as the Internet. The data transmitted by the integrated transmission unit 150 includes an identification number of a cable broadcasting establishment that transmits data, a channel number of data (broadcast state), a frequency of a corresponding channel, a number of programs included in a corresponding channel, and a corresponding channel. Whether it is received by the adapter, the type of broadcast data received (e.g. 64QAM, 256QAM, 8VSB, etc.), TS status, AV status, signal reception status (SNR, EVM, BER, etc.), broadcast status (AV status, TS status, Information on the presence or absence of an abnormality in the signal reception state).

In general (that is, when there is no abnormality in the broadcasting state of all channels of the received digital broadcasting data), the integrated transmission unit 150 is configured for the broadcasting state of a specific channel set through the local UI or the integrated UI unit 240. Only information is transmitted, and if there is an error in the broadcast state, the fact is immediately transmitted to the state integrated monitoring server 200.

In addition, the control command receiver connected to the central control unit 120 transmits a control command (for example, a command for transmitting broadcast state data of a specific channel of a cable broadcasting station) transmitted from the state integrated monitoring server 200. Receives and transmits to the central control unit 120. The central control unit 120 receiving the control command performs a function according to the control command.

The state integrated monitoring server 200 includes an integrated receiver 210, a data classification unit 220, an integrated UI unit 240, a central control unit 230, as shown in FIG.

The integrated receiver 210 receives broadcast status data transmitted from the integrated transmitter 150 of the plurality of state collection servers 100,

The data classifying unit 220 displays the broadcasting state data received by the integrated receiving unit 210 according to a predetermined program by wire broadcasting establishment, by broadcasting state (for example, by AV state, TS state, and reception sensitivity). , SNR, etc.), and transmits the same to the integrated UI unit 240 through the central controller 230.

The integrated UI unit 240 displays the transmitted broadcast state data so that an administrator can check it. The integrated UI unit 240 also includes a monitor and a keyboard like the local UI unit 140, and includes an alarm unit 241 and an SMS command unit 242.

The central control unit 230 controls the state integrated monitoring server 200 as a whole.

In the above description of the present invention, a digital broadcasting channel monitoring system having a specific configuration has been described with reference to the accompanying drawings. However, the present invention can be variously modified and changed by those skilled in the art. Should be interpreted as belonging to.

1 is a schematic diagram of a digital broadcasting channel monitoring system according to the present invention;

2 is a detailed configuration diagram of a state collection server.

3 is a detailed configuration diagram of a state integrated monitoring server.

<Description of the symbols for the main parts of the drawings>

100: state collection server 110: adapter

111: tuner section 115: FPGA section

120: central control unit 130: broadcasting status analysis unit

131: AV status analysis unit 134: TS status analysis unit

137: signal reception state analysis unit 140: local UI unit

150: integrated transmission unit 200: state integrated monitoring server

210: integrated receiver 220: data classification unit

230: central control unit 240: integrated UI unit

300: SMS server

Claims (8)

An adapter for receiving a digital broadcasting signal transmitted in real time from a broadcasting station and converting the same into TS data; A broadcast status including an AV status analyzer for analyzing AV status of each channel by decoding the AV signal of TS data transmitted from the adapter, and a TS status analyzer for analyzing TS status of each channel by analyzing PSI of the transmitted TS data An analysis unit; And a local UI unit for displaying the AV state and TS state transmitted from the broadcast state analyzer. The method of claim 1, A state collection server including the adapter, a broadcast state analysis unit, and a local UI unit; and And a status integrated monitoring server for receiving the analysis result data of the broadcasting signals for each channel from the plurality of state collection servers through a communication network, and integrating and displaying the analysis result data. The method of claim 2, wherein the state collection server And an integrated transmission unit for integrating the AV state and the TS state transmitted from the broadcast state analysis unit for each channel and transmitting the integrated state to the state integrated monitoring server through a communication network. The method of claim 2 or 3, Digital broadcasting channel monitoring, characterized in that it further comprises; SMS server for receiving a status error signal from the state collection server or state integrated monitoring server, or both through a communication network, and transmits a text message to the mobile phone registered thereon; system. The method of claim 4, wherein The adapter of the state collection server and the tuner unit for demodulating the received broadcast signal; An FPGA unit generating an RF characteristic value of the broadcast signal received in connection with the tuner unit, and processing the demodulated data into the TS data processable by the broadcast state analyzer; And a bridge unit connected to the FPGA unit (Field-Programmable Gate Array) to transmit the TS data and RF characteristic values to the broadcast state analysis unit. The broadcast condition analysis unit further comprises a received signal state analysis unit for analyzing the received state of the received broadcast signal by comparing the transmitted RF characteristic value with a pre-stored reference value. The method of claim 5, wherein the state integrated monitoring server An integrated receiver which receives the analysis result data of the broadcast signal from the integrated transmitter of the state collection server through a communication network; A data classification unit for separating data transmitted from the integrated receiver for each channel; And a integrated UI unit for displaying data transmitted from the data classifying unit. The method of claim 6, The local UI of the state collection server and the integrated UI of the state integrated monitoring server are connected to an alarm unit that emits an alarm sound or flashes an alarm lamp when there is an error in the received broadcast signal. Channel monitoring system. The method of claim 7, wherein the state collection server And a controller which separates the data transmitted from the adapter by types and transmits the data to the AV state analyzer, the TS state analyzer, and the received signal state analyzer of the broadcast state analyzer.

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