KR102153991B1 - Ddetecting apparatus for monitoring emergency broadcasting message frame, emergency wake-up alert service transmitter and receiver - Google Patents

Abstract

The verification apparatus for monitoring and analyzing whether a disaster broadcast message frame is normally configured includes a transport frame analysis unit that analyzes a transport frame layer of the disaster broadcast message frame, a service packet analysis unit that analyzes a service packet layer of the disaster broadcast message frame, the A metadata analysis unit for analyzing metadata of a disaster broadcasting message frame, a service data decoding unit for decoding or parsing a service packet of the disaster broadcasting message frame, the transmission frame analysis unit, the service packet analysis unit, and the metadata analysis unit A system control unit for receiving each analysis result information from the system control unit, and a display unit for outputting the respective analysis result information received from the system control unit and the decoded or parsed service data input from the service data decoding unit on a screen. .

Description

A verification device that monitors and analyzes disaster broadcasting message frames, an automatic identification disaster broadcasting transmission system, and an automatic identification disaster broadcasting reception device {DDETECTING APPARATUS FOR MONITORING EMERGENCY BROADCASTING MESSAGE FRAME, EMERGENCY WAKE-UP ALERT SERVICE TRANSMITTER AND RECEIVER}

The present invention relates to a verification device for monitoring and analyzing a disaster broadcast message frame, an automatic or disaster broadcast transmission system, and an automatic or disaster broadcast reception device.

In the past, it is possible to receive disaster information only by watching terrestrial digital multimedia broadcasting (T-DMB). In order to overcome the limitations of the conventional T-DMB disaster broadcasting service, from 2011, it automatically wakes up when a disaster occurs, providing disaster information even if you do not watch T-DMB, and provides information on public services such as local information and weather. We are developing automatic T-DMB disaster broadcasting technology that can provide

However, a technique capable of verifying whether the automatic or T-DMB disaster broadcasting signal is properly transmitted or whether the received automatic or T-DMB disaster broadcasting signal normally transmits a disaster message has not been proposed so far.

The problem to be solved by the present invention is to provide a verification device that monitors and analyzes an automatic T-DMB disaster broadcast message frame.

According to an embodiment of the present invention, the verification apparatus includes a transport frame analysis unit that analyzes a transport frame layer of a disaster broadcast message frame, a service packet analysis unit that analyzes a service packet layer of the disaster broadcast message frame, and the disaster broadcast message. From the metadata analysis unit that analyzes the metadata of the frame, the service data decoding unit that decodes or parses the service packet of the disaster broadcast message frame, the transmission frame analysis unit, the service packet analysis unit, and the metadata analysis unit, And a system control unit for receiving analysis result information, and a display unit for outputting the respective analysis result information received from the system control unit and decoded or parsed service data input from the service data decoding unit on a screen.

The disaster broadcast message frame,

A transport frame layer including a plurality of transport headers and transport packets, each transport packet is a service packet layer composed of a packet header and a payload, and the payload is a disaster broadcast including metadata and disaster broadcasting information for each service type. A service layer, a disaster broadcasting information layer including the disaster broadcasting information, and a partitioning layer for dividing the disaster broadcasting service layer into a size suitable for transmission,

The transport frame analysis unit, the service packet analysis unit, the metadata analysis unit, and the service data decoding unit may classify and analyze the disaster broadcast message frame for each layer.

The disaster broadcast message frame,

It may be included in a transport frame among EDI (Emergency Service Data Interface) frames.

The transmission frame analysis unit,

A transmission header detection unit that parses the disaster broadcast message frame to detect a transmission header and outputs a transmission packet to the service packet analysis unit, and a transmission header field analysis unit that analyzes the transmission header and outputs the analysis result to the system control unit. Can include.

The service packet analysis unit,

A packet header detection unit configured to detect a packet header from the transport packet received from the transport header detection unit, output the payload detected in the transport packet to the metadata analysis unit, and analyze the packet header input from the packet header detection unit, And a packet header field analysis unit that outputs the analysis result to the system control unit.

The metadata analysis unit,

A metadata detection unit configured to determine whether the payload received from the service packet analysis unit is metadata, output a payload other than metadata to the service data decoding unit, and a payload determined as metadata from the metadata detection unit. It may include a metadata field analysis unit that receives and analyzes the input and outputs analysis result information to the system control unit.

The service data decoding unit,

A service demultiplexing unit that receives and demultiplexes a payload other than metadata from the metadata analysis unit, text type disaster broadcasting information among the payloads demultiplexed by the service demultiplexer, and metadata input from the metadata analysis unit A text decoding unit that decodes data text and outputs it to the display unit, an image decoding unit that decodes image type disaster broadcasting information from the payload demultiplexed by the service demultiplexer and outputs it to the display unit, and the service demultiplexer is demultiplexed. A voice decoding unit that decodes the voice-type disaster broadcasting information from one payload and outputs it to the display unit, and the service demultiplexer decodes the markup language type disaster broadcasting information from the payload demultiplexed by the service demultiplexer and outputs it to the display unit. It may include a parser.

According to another embodiment of the present invention, the automatic recognition disaster broadcast transmission system includes a disaster broadcasting service data unit that generates a disaster broadcast message frame, and a disaster broadcast that generates a disaster broadcast transmission frame in which the disaster broadcast message frame is processed according to a transmission standard. A transmission data unit, a disaster broadcasting signal unit that combines the disaster broadcasting transmission frame and a terrestrial digital media broadcasting signal, a transmission unit that wirelessly transmits the combined signal output from the disaster broadcasting signal unit, and the disaster broadcasting service data unit. And a verification device for monitoring and analyzing the disaster broadcasting message frame output from the disaster broadcasting service data unit.

The verification device,

The configuration of an Emergency Data Interface (EDI) frame output from the disaster broadcasting service data unit and the disaster broadcasting message frame included in the EDI frame may be monitored and analyzed.

The verification device,

A transport frame analyzer configured to parse the disaster broadcast message frame to detect and analyze a transport header, and output an analysis result of the transport header and a transport packet, and detect a packet header from the transport packet received from the transport frame analyzer. A service packet analysis unit that analyzes and outputs the analysis result of the packet header and the payload detected from the transport packet, determines whether the payload received from the service packet analysis unit is metadata, and determines whether the payload as metadata is A metadata analysis unit that outputs an analysis result and a payload other than metadata, receives and demultiplexes a payload other than metadata from the metadata analysis unit, and then serves the detected disaster broadcasting information through demultiplexing processing. A service data decoding unit for decoding by type, receives an analysis result of the transmission header attached to the transmission frame analysis unit, receives the analysis result of the packet header from the service packet analysis unit, and receives the metadata from the metadata analysis unit. The system control unit receiving the result of analyzing the in payload, the analysis result of the transmission header transmitted from the system control unit, the analysis result of the packet header, the result of analyzing the payload which is the metadata, and the service data decoding unit It may include a display for outputting the decoded disaster broadcasting information for each service type on the screen.

According to another embodiment of the present invention, an automatic or disaster broadcast receiving device includes a receiver for receiving a terrestrial digital media broadcast signal, and an automatic or disaster broadcast that determines whether a disaster broadcast message frame is included by analyzing the terrestrial digital media broadcast signal. Signal receiving unit, when it is determined that the terrestrial digital media broadcasting signal is an automatic or disaster broadcasting signal including the disaster broadcasting message frame, a despreading and demodulating unit receiving and despreading and demodulating the disaster broadcasting signal, and the despreading and demodulating A deinterleaving unit that processes a deinterleaving process on the additionally output disaster broadcast signal, and analyzes and monitors the header of a disaster broadcast message frame included in the disaster broadcast signal outputted by the deinterleaving unit, and provides each service in the disaster broadcast message frame. It includes a verification unit that decodes and outputs.

The verification unit,

A channel decoding unit that processes a channel decoding on an automatic or perceived disaster broadcast signal input from the deinterleaving unit, a disaster broadcast message frame output from the channel decoding unit is parsed to detect and analyze a transmission header, and an analysis result of the transmission header, and A transport frame analysis unit that outputs a transport packet, a service packet that detects and analyzes a packet header from the transport packet received from the transport frame analysis unit, and outputs an analysis result of the packet header and a payload detected from the transport packet An analysis unit, a metadata analysis unit that determines whether the payload received from the service packet analysis unit is metadata, and outputs a result of analyzing the payload, which is metadata, and a payload other than metadata, the metadata analysis unit A service data decoding unit that decodes the disaster broadcasting information detected through demultiplexing by service type after receiving a payload other than metadata from the input and demultiplexing it, and inputting the analysis result of the transmission header attached to the transmission frame analysis unit A system control unit receiving, receiving an analysis result of the packet header from the service packet analysis unit, and receiving a result of analyzing the payload, which is the metadata, from the metadata analysis unit, and the transmission header transmitted from the system control unit The analysis result of, the analysis result of the packet header, the analysis result of the payload, which is the metadata, and the disaster broadcasting information for each service type decoded by the service data decoder may be displayed on a screen.

According to an embodiment of the present invention, it is possible to verify whether an automatic or T-DMB disaster broadcast message frame is normally configured.

1 is a block diagram of an automatic cognitive terrestrial digital multimedia broadcasting (T-DMB) emergency broadcast transmission system (Emergency Wake-up Alert Service Transmitter, EWAST) according to an embodiment of the present invention.
2 shows a location of a verification device according to an embodiment of the present invention.
3 shows a structure of a disaster broadcast message frame according to an embodiment of the present invention.
4 shows an EDI frame structure according to an embodiment of the present invention.
5 is a block diagram showing the configuration of a verification device according to an embodiment of the present invention.
6 is a block diagram showing a detailed configuration of the transmission frame analysis unit of FIG. 5.
7 is a block diagram showing a detailed configuration of the service packet analysis unit of FIG. 5.
8 is a block diagram showing a detailed configuration of the metadata analysis unit of FIG. 5.
9 is a block diagram illustrating a detailed configuration of a service data decoding unit of FIG. 5.
10 is a block diagram showing the configuration of an automatic or disaster broadcast receiving apparatus according to an embodiment of the present invention.
11 is a block diagram showing a detailed configuration of the verification unit of FIG. 10.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the embodiments. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, a terminal is a user equipment (UE), a mobile terminal (MT), a mobile station (MS), an advanced mobile station (AMS), a highly reliable mobile station. (high reliability mobile station, HR-MS), subscriber station (SS), portable subscriber station (PSS), access terminal (AT), and the like, UE, MT, It may include all or part of functions such as MS, AMS, HR-MS, SS, PSS, AT, and the like.

In addition, the base station (BS) is a node B (node B), an advanced node B (evolved node B, eNB), an advanced base station (ABS), a high reliability base station (HR- BS), access point (AP), radio access station (RAS), base transceiver station (BTS), etc., and NodeB, eNB, BS, ABS, HR- It may include all or part of functions such as BS AP, RAS, and BTS.

Now, a verification device for monitoring and analyzing a disaster broadcast message frame, an automatic or automatic disaster broadcast transmission system, and an automatic or automatic disaster broadcast reception device according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration of an automatic terrestrial digital multimedia broadcasting (Terrestrial Digital Multimedia Broadcasting, hereinafter referred to as'T-DMB') disaster broadcast transmission system (Emergency Wake-up Alert Service Transmitter, EWAST) according to an embodiment of the present invention. And FIG. 2 shows a location of a verification device according to an embodiment of the present invention.

1 and 2, the automatic T-DMB Disaster Broadcasting Transmission System (EWAST) 1 includes an Emergency Service Data Unit (ESDU) 100, an Emergency Transmission Data Unit (EWAST). A Data Unit, ETDU) 200, an Emergency Signal Unit (ESU) 300, a T-DMB transmission unit 400, and a Radio Frequency (RF) transmission unit 500.

Here, the disaster broadcasting service data unit (ESDU) 100 receives disaster broadcasting information of an information type including text, audio, image, and eXtensible Markup Language (XML) from the outside. In order to transmit the received disaster broadcast information, metadata is inserted and then divided to generate a packet header.

In addition, the disaster broadcasting service data unit (ESDU) 100 generates a transmission header and outputs the disaster broadcasting service data multiplexed or MUX together with the packet header to the disaster broadcasting transmission data unit (ETDU) 200. At this time, the disaster broadcasting service data is output through a predetermined communication protocol, and such a communication protocol is an emergency broadcasting service data interface (hereinafter, referred to as'EDI').

The Emergency Transmission Data Unit (ETDU) 200 modulates and spreads the spectrum after channel coding and interleaving the disaster broadcasting service data received from the disaster broadcasting service data unit (ESDU) 100 according to the transmission standard. Process and frame sync. Then, after signal generation and masking are performed, EMC (Electro Magnetic Compatidility) power control is performed.

In addition, the disaster broadcasting transmission data unit (ETDU) 200 selects and modulates the EWC (Electrode Width Controlled) code for the disaster broadcasting service data received from the disaster broadcasting service data unit (ESDU) 100, and then modulates the EWC power supply. Control. Then, after the disaster broadcasting service data controlled by EMC power control and EWC power is combined, it is output to the emergency signal unit (ESU) 300. That is, it outputs disaster broadcasting service data by adjusting the transmission power.

The disaster broadcasting signal unit (ESU) 300 combines the received disaster broadcasting service data with the T-DMB signal, and then outputs it to the T-DMB transmission unit 400.

The T-DMB transmission unit 400 outputs a signal in which the disaster broadcasting service data received from the disaster broadcasting signal unit (ESU) 300 and the T-DMB signal are combined through the RF transmission unit 500.

At this time, as can be seen in FIG. 2, the disaster broadcasting service data multiplexed in the disaster broadcasting service data unit (ESDU) 100 is output through EDI. The verification device 600 is connected to the EDI and performs a function of monitoring and analyzing whether the EDI frame output from the disaster broadcasting service data unit (ESDU) 100 and the disaster broadcasting message frame included in the EDI frame are normally configured.

Here, the structure of the disaster broadcast message frame is shown in FIG. 3.

3 shows a structure of a disaster broadcast message frame according to an embodiment of the present invention.

Referring to Figure 3, the disaster broadcast message frame 700 is composed of a plurality of layers. That is, an emergency broadcasting information layer 701, an emergency broadcasting service layer 703, a segment layer 705, a service packet layer 707 ) And a Transmission Frame Layer (709).

The disaster broadcast information layer 701 includes disaster broadcast information including text, audio, XML, and image.

The disaster broadcast service layer 703 includes the above-described disaster broadcast information, meta data, and padding. The disaster broadcasting service layer 703 is a layer that includes information describing disaster broadcasting information itself including content and size of the disaster broadcasting information.

The segment layer 705 is a division layer that divides the disaster broadcast service layer 703 into a size suitable for transmission. It is divided into four 182 byte packets and one 181 byte packet.

The service packet layer 707 is a layer that processes information related to division and information related to multiplexing of the segment layer 705. It is composed of a plurality of service packets including a 3-byte packet header, a 184-byte payload, and a Cyclical Redundancy Check (CRC).

The transport frame layer 709 is a layer to which information about transmission is added to the service packet layer 707. It consists of a plurality of transport frames including a 4 byte transport header and a 187 byte transport packet.

The disaster broadcasting service data unit (ESDU) 100 transmits the disaster broadcasting message frame configured as shown in FIG. 3 to the disaster broadcasting transmission data unit (ETDU) 200 through EDI. In this case, an embodiment of the EDI frame structure is illustrated in FIG. Same as 4.

4 shows an EDI frame structure according to an embodiment of the present invention.

Referring to FIG. 4, an EDI frame includes a 2-byte STX field, a Type field, a Data field, a CRC field, and an ETX field.

Here, the STX field is a synchronization field indicating the start of the EDI frame, and its value is set to 0xA55A.

The Type field is a field indicating the EDI frame type. EDI frames are divided into two types: a transmission frame (transmission header + transmission packet) and a transmission status frame, and are shown in Table 1.

Type EDI frame value 0x0 1 transmission frame (a bundle of 1 transmission header (4byte) and 1 transmission packet (187byte)) 0x1 Transmission status frame 0x02~0xFF Future use

According to Table 1, the EDI frame includes a transmission frame (transmission header + transmission packet) of type 0x0 as shown in Fig. 4(a) and a transmission status frame of type 0x1 as shown in Fig. 4(b). Include.

In (a) of FIG. 4, the Type field of the transmission frame (transmission header length 4 bytes + transmission packet 187 bytes) includes a value of 0x0, and in FIG. 4 (b), the Type field of the transmission status frame Contains the value 0x1.

As can be seen from Table 1, the configuration of the Data field varies according to the value of the Type field, and the meaning of the Data field value is as follows.

As shown in FIG. 4A, when the Type field value is a transmission frame (Type = 0x0), SEQ_ID (1 byte) means a unique number of a multiplexed transmission frame. SEQ_SIZE (4byte) means the total number of multiplexed transmission frames. SEQ_NO (4byte) means the sequence number (starting from 0) of the multiplexed transmission frame. Value (191 bytes) means one transmission frame (a bundle of a transmission header and a transmission packet), and includes a transmission header (4 bytes) and a transmission packet (187 bytes). Here, the transmission header (4 bytes) is the disaster status (1 bit), the protection level (3 bits), the transmission packet SF (Spreading Factor) (2 bits), Rfu (Reserved for future use) (8 bits), the number of services (8 bits). ), Rfu (8bit), transmission head CRC (8bit).

As shown in (b) of FIG. 4, when the value of the Type field is a transmission status frame (Type = 0x1), SEQ_ID (1 byte) means a unique number of a multiplexed transmission frame. SEQ_SIZE (4byte) means the total number of multiplexed transmission frames. SEQ_NO (4byte) is fixed to a value of 0. Value (1 byte) means a transmission status frame, and is shown in Table 2 below.

Value Transmission status meaning 0x0 STOP 0x1~0xFF Not defined

Meanwhile, the CRC field is an error check field of the EDI frame, and the target field of the CRC error check is a Type field and a Data field.

The ETX field means a synchronization field indicating the end of the EDI frame, and its value is set to 0x1AA1.

5 is a block diagram showing a configuration of a verification device according to an embodiment of the present invention, FIG. 6 is a block diagram showing a detailed configuration of a transmission frame analysis unit of FIG. 5, and FIG. 7 is a detailed configuration of a service packet analysis unit of FIG. FIG. 8 is a block diagram showing a detailed configuration of the metadata analysis unit of FIG. 5, and FIG. 9 is a block diagram showing a detailed configuration of the service data decoding unit of FIG. 5.

The verification apparatus analyzes the disaster broadcast message frame included in the transmission frame of FIG. 4 by dividing each layer of FIG. 3. Referring to FIG. 5, the verification device 600 includes a receiving unit 610, a transmission frame analysis unit 620, a service packet analysis unit 630, a metadata analysis unit 640, a service data decoding unit 650, and a display. It includes a unit 660 and a system control unit 670.

The receiving unit 610 receives the EDI frame output from the disaster broadcasting service data unit (ESDU) 100. In addition, the EDI frame received according to the control signal of the system controller 670 is parsed. Then, the transmission frame parsed from the EDI frame is output.

The transmission frame analysis unit 620 analyzes the header information of the transmission frame input from the reception unit 610 and outputs it to the system control unit 670. Then, the transmission packet data of the transmission frame is output to the service packet analysis unit 630. Here, the transport packet data is composed of a transport header and a transport packet. The transmission frame analysis unit 620 may be configured as shown in FIG. 6 in detail.

Referring to FIG. 6, the transmission frame analysis unit 620 includes a transmission header detection unit 621 and a transmission header field analysis unit 623.

The transmission header detection unit 621 detects a transmission header among transmission packet data input from the reception unit 610 and outputs the detection to the transmission header field analysis unit 623. In addition, the transport packet among the transport packet data is output to the service packet analysis unit 630.

The transmission header field analysis unit 623 analyzes transmission header data input from the transmission header detection unit 621 for each field, and outputs the analyzed information to the system control unit 670.

Again, referring to FIG. 5, the service packet analysis unit 630 analyzes header information of a transport packet and outputs it to the system control unit 670. Then, the packet paylog data is output to the metadata analysis unit 640. The service packet analysis unit 630 may be configured in detail as shown in FIG. 7.

Referring to FIG. 7, the service packet analysis unit 630 includes a packet header detection unit 631 and a packet header field analysis unit 633.

The packet header detection unit 631 detects a packet header from service packet data input from the transmission frame analysis unit 620 and outputs it to the packet header field analysis unit 633. In particular, since the size of the packet header may be flexible for each packet when the transmission header is detected, for example, since the packet size increases in the case of the last packet, only the last packet among the packet header fields is checked first, and then the transmission header data is detected. In addition, the packet payload separated by the packet header detection unit 631 is output to the meta data analysis unit 640.

The packet header field analysis unit 633 analyzes the packet header data input from the packet header detection unit 631 in detail for each field, and outputs the analyzed information to the system control unit 670.

Again, referring to FIG. 5, when the packet payload data input from the service packet analysis unit 630 is metadata, the metadata analysis unit 640 analyzes the metadata to provide the service data decoding unit 650 and the system. Output to the control unit 670. In addition, if it is not metadata, the packet payload data is output to the service data decoding unit 650. The metadata analysis unit 640 may be configured in detail as shown in FIG. 8.

Referring to FIG. 8, the metadata analysis unit 640 includes a metadata detection unit 641 and a metadata field analysis unit 643.

The metadata detection unit 641 detects metadata from service packet data input from the service packet analysis unit 630 and outputs it to the metadata field analysis unit 643. In addition, the service packet data excluding the metadata is output to the service data decoding unit 650. In particular, since the length of the metadata is flexible like the packet header, the metadata length field is first checked and the metadata is detected.

That is, referring again to FIG. 3, it can be seen that metadata is included in payload 0, and disaster broadcasting information is included from payload 1. Accordingly, the metadata detection unit 641 outputs the payload 0 to the metadata field analysis unit 643, and outputs the payload 1 to the service data decoding unit 650.

The metadata field analysis unit 643 in detail analyzes the fields in the metadata and outputs the analyzed information to the system control unit 670.

Again, referring to FIG. 5, the service data decoding unit 650 decodes packet payload data input from the metadata analysis unit 640 for each service, and then outputs the decoded packet payload data to the display unit 660. The service data decoding unit 650 may be configured in detail as shown in FIG. 9.

Referring to FIG. 9, the service data decoding unit 650 decodes service packet data that is encoded and input. It receives from payload 1 of FIG. 3 and decodes disaster broadcast information included from payload 1. At this time, it has a plurality of configurations for decoding for each service type, including a service demultiplexing unit 651, a text decoding unit 652, an image decoding unit 653, a voice decoding unit 654, and an XML parser unit 655. ). In this case, a configuration according to the decoding type may be further included.

Here, the service demultiplexing unit 651 demultiplexes each of the service packets that are multiplexed and input, that is, disaster broadcasting information data, and outputs them to the decoding units 652, 653, 654, and 655 corresponding to each service. Here, service packets may also be referred to as payloads of FIG. 3.

The text decoding unit 652 receives a text-type service packet from among the demultiplexed service packets output from the service demultiplexer 651 and the meta data text input from the metadata analysis unit 640, and decodes and parses it. .

The image decoding unit 653 receives an image type service packet from among the demultiplexed service packets output from the service demultiplexer 651 and decodes and parses it.

The voice decoding unit 654 receives, decodes and parses a voice type service packet from among the demultiplexed service packets output from the service demultiplexer 651.

The XML parser unit 655 receives a markup language, for example, an XML type service packet from among the demultiplexed service packets output by the service demultiplexer 651, and decodes and parses it.

In this way, the service packets decoded and parsed by each of the decoding units 652, 653, 654, and 655 are output to the display unit 660.

Again, referring to FIG. 5, the display unit 660 is a graphic user interface (GUI)-based device, and an input device and a display device may be implemented together. The display unit 660 displays analysis information on each of the decrypted service data input from the service data decoding unit 650 and the analyzed transmission header, packet header, and metadata input from the system control unit 670 as a graphic user interface. Output through (GUI). In addition, the system controller 670 can automatically monitor the disaster broadcasting service data and control the operation of the analyzer.

The system control unit 670 controls each component 610, 620, 630, 640, 650 through the setting of the display unit 660 and analyzes information from each component 610, 620, 630, 640, 650 Is output to the display unit 660.

As described above, the verification device 600 for monitoring and analyzing a disaster broadcast message is a type that analyzes from the EDI frame that is located at the rear end of the disaster broadcasting service data unit (ESDU) 100 and outputs from the automatic recognition disaster broadcasting transmitter.

Meanwhile, the configuration for monitoring and analyzing a disaster broadcast message can be utilized in a form capable of monitoring and analyzing the state of a service packet received from an automatic or disaster broadcast receiving end, and will be described with reference to FIGS. 10 and 11.

10 is a block diagram showing the configuration of an automatic or automatic disaster broadcast receiving apparatus according to an embodiment of the present invention, and FIG. 11 is a block diagram showing a detailed configuration of a verification unit of FIG. 10.

First, referring to FIG. 10, the automatic recognition disaster broadcast reception device 2 includes an RF reception unit 800, a T-DMB reception unit 900, an automatic recognition disaster broadcast signal reception unit 1000, a despreading and demodulation unit 1100. , A deinterleaving unit 1200 and a verification unit 1300.

The T-DMB receiver 900 receives a T-DMB signal through the RF receiver 800.

The automatic or disaster broadcasting signal receiving unit 1000 determines whether a disaster broadcasting message frame is included by analyzing the T-DMB signal transmitted from the T-DMB receiving unit 900. In addition, when the T-DMB signal is determined to be an automatic or disaster broadcast signal including a disaster broadcast message frame, the automatic or disaster broadcast signal is output to the despreading and demodulation unit 1100.

The despreading and demodulating unit 1100 performs a despreading and demodulating process for an automatic or recognized disaster broadcast signal, and then outputs the deinterleaving unit 1200 to the deinterleaving unit 1200.

The deinterleaving unit 1200 processes a deinterleaving process for distributing a burst error to a signal output from the despreading and demodulating unit 1100 and then outputting the deinterleaving process to the verification unit 1300.

The verification unit 1300 analyzes and monitors each header of the disaster broadcast message frame output from the deinterleaving unit 1200 to check whether the disaster broadcast message frame included in the disaster broadcast signal that has undergone channel decoding is normally received, Processes to be decoded and displayed for each service in the disaster broadcast message. The verification unit 1300 may be configured in detail as shown in FIG. 11.

Referring to FIG. 11, the verification unit 1300 includes a channel decoding unit 1310, a transmission frame analysis unit 1320, a service packet analysis unit 1330, a metadata analysis unit 1340, and a service data decoding unit 1350. , A display unit 1360 and a system control unit 1370.

The channel decoding unit 1310 performs a channel decoding (Reed-Solomon Decoding + convolutional Decoding) process on the disaster broadcast signal input from the deinterleaving unit 1200, and then outputs it.

The transmission frame analysis unit 1320 includes the same configuration as the transmission frame analysis unit 620 of FIGS. 5 and 6 and performs the same function.

The service packet analysis unit 1330 includes the same configuration as the service packet analysis unit 630 of FIGS. 5 and 7 and performs the same function.

The metadata analysis unit 1340 includes the same configuration as the metadata analysis unit 640 of FIGS. 5 and 8 and performs the same function.

The service data decoding unit 1350 includes the same configuration as the service data decoding unit 650 of FIGS. 5 and 9 and performs the same function.

The display unit 1360 has the same configuration as the display unit 660 of FIG. 5 and performs the same function.

The system controller 1370 includes the same configuration as the system controller 670 of FIG. 5 and performs the same function.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (12)

Receives an EDI (Emergency Service Data Interface) frame output from an Emergency Service Data Unit (ESU) to an Emergency Signal Unit (ESU), and receives the EDI (Emergency Service Data Interface) frame. A receiving unit that parses and outputs a disaster broadcast message frame included in the transmission frame,
A transport frame analysis unit that analyzes a transport frame layer constituting the disaster broadcast message frame,
A service packet analysis unit for analyzing a service packet layer constituting the disaster broadcast message frame,
A metadata analysis unit that analyzes metadata constituting the disaster broadcast message frame,
A service data decoding unit for decoding or parsing a service packet constituting the disaster broadcasting message frame,
A system controller for receiving analysis result information of each of the transport frame layer, service packet layer, and metadata of the disaster broadcast message frame, and
A display unit for outputting the respective analysis result information input from the system control unit and the decrypted or parsed service data input from the service data decoding unit on a screen,
The respective analysis result information and the decrypted or parsed service data,
A verification device used to verify whether the disaster broadcast message frame is configured with a predefined disaster broadcast message frame structure. The method of claim 1,
The disaster broadcast message frame,
A transport frame layer including a plurality of transport headers and transport packets,
Each transport packet is a service packet layer consisting of a packet header and payload,
The payload is a disaster broadcasting service layer including meta data and disaster broadcasting information for each service type,
The disaster broadcasting information layer including the disaster broadcasting information, and
Including a division layer for dividing the disaster broadcasting service layer into a size suitable for transmission,
The transmission frame analysis unit, the service packet analysis unit, the metadata analysis unit, the service data decoding unit,
A verification device that divides and analyzes the disaster broadcast message frame for each layer. delete The method of claim 2,
The transmission frame analysis unit,
A transmission header detection unit that parses the disaster broadcast message frame to detect a transmission header, and outputs a transmission packet to the service packet analysis unit, and
A transmission header field analysis unit that analyzes the transmission header and outputs the analysis result to the system control unit
Verification device comprising a. The method of claim 4,
The service packet analysis unit,
A packet header detection unit configured to detect a packet header from the transport packet received from the transport header detection unit and output a payload detected from the transport packet to the metadata analysis unit, and
A packet header field analysis unit that analyzes the packet header input from the packet header detection unit and outputs the analysis result to the system control unit
Verification device comprising a. The method of claim 5,
The metadata analysis unit,
A metadata detection unit that determines whether the payload received from the service packet analysis unit is metadata, and outputs a payload other than metadata to the service data decoding unit, and
A metadata field analysis unit that receives and analyzes the payload determined as metadata from the metadata detection unit, and outputs analysis result information to the system control unit
Verification device comprising a. The method of claim 6,
The service data decoding unit,
A service demultiplexer for receiving a payload other than metadata from the metadata analysis unit and demultiplexing it,
A text decoding unit that decodes text type disaster broadcasting information and metadata text input from the metadata analysis unit among the payload demultiplexed by the service demultiplexer and outputs the decoded to the display unit,
An image decoding unit that decodes image type disaster broadcasting information from the payload demultiplexed by the service demultiplexer and outputs it to the display unit,
A voice decoding unit for decoding the voice type disaster broadcasting information from the payload demultiplexed by the service demultiplexer and outputting it to the display unit, and
A parser that decodes disaster broadcasting information of markup language type among payloads demultiplexed by the service demultiplexer and outputs it to the display unit
Verification device comprising a. Disaster broadcasting service data unit that generates a disaster broadcasting message frame,
Disaster broadcasting transmission data unit for generating a disaster broadcasting transmission frame by processing the disaster broadcasting message frame according to a transmission standard,
A disaster broadcasting signal unit that combines the disaster broadcasting transmission frame and a terrestrial digital media broadcasting signal,
A transmitter for wirelessly transmitting the combined signal output from the disaster broadcasting signal unit, and
By parsing an Emergency Data Interface (EDI) frame output from the disaster broadcasting service data unit, the disaster broadcasting message frame included in the transmission frame of the EDI frame is obtained, and the disaster broadcasting message frame is a predefined disaster broadcasting message frame. It includes a verification device that verifies whether it is structured,
The verification device,
Analyzing the transport frame layer, the service packet layer and metadata constituting the disaster broadcasting message frame, decoding or parsing the service packet of the disaster broadcasting message frame, the analysis result information, and the decoded or parsed An automatic disaster broadcasting transmission system for verifying the disaster broadcasting message frame using a service packet. delete The method of claim 8,
The verification device,
A transport frame analyzer configured to parse the disaster broadcast message frame to detect and analyze a transport header, and to output an analysis result of the transport header and a transport packet,
A service packet analysis unit configured to detect and analyze a packet header from the transport packet received from the transport frame analysis unit, and output an analysis result of the packet header and a payload detected from the transport packet,
A metadata analysis unit that determines whether the payload received from the service packet analysis unit is metadata, and outputs a result of analyzing the payload, which is metadata, and a payload other than metadata,
A service data decoding unit that receives a payload other than metadata from the metadata analysis unit, demultiplexes it, and decodes the disaster broadcasting information detected through demultiplexing for each service type,
Receives the analysis result of the transmission header attached to the transmission frame analysis unit, receives the analysis result of the packet header from the service packet analysis unit, and inputs the result of analyzing the payload, which is the metadata, from the metadata analysis unit Receiving system control, and
The analysis result of the transmission header transmitted from the system control unit, the analysis result of the packet header, the result of analyzing the payload which is the metadata, and the disaster broadcasting information for each service type decoded by the service data decoding unit are output on the screen. Display
Automatic or disaster broadcasting transmission system comprising a. A receiver for receiving a terrestrial digital media broadcast signal,
An automatic disaster broadcasting signal receiving unit that analyzes the terrestrial digital media broadcasting signal to determine whether a disaster broadcasting message frame is included,
A despreading and demodulating unit configured to receive the disaster broadcast signal and to despread and demodulate when the terrestrial digital media broadcast signal is automatically determined to be a disaster broadcast signal including the disaster broadcast message frame;
A deinterleaving unit that processes a deinterleaving process on the disaster broadcast signal output from the despreading and demodulation unit, and
A verification unit that analyzes and monitors a header of a disaster broadcast message frame included in a disaster broadcast signal output from the deinterleaving unit, and decodes and outputs each service in the disaster broadcast message frame,
The verification unit may use the analysis result information of each of the transport frame layer, the service packet layer, and the metadata constituting the disaster broadcast message frame, and information obtained by decoding or parsing the service packet of the disaster broadcast message frame. Automatic or disaster broadcast receiving device that checks whether frames are received normally. The method of claim 11,
The verification unit,
A channel decoding unit for processing channel decoding on an automatic or disaster broadcast signal input from the deinterleaving unit,
A transmission frame analysis unit configured to parse the disaster broadcast message frame output from the channel decoding unit to detect and analyze a transmission header, and to output an analysis result of the transmission header and a transmission packet;
A service packet analysis unit configured to detect and analyze a packet header from the transport packet received from the transport frame analysis unit, and output an analysis result of the packet header and a payload detected from the transport packet,
A metadata analysis unit that determines whether the payload received from the service packet analysis unit is metadata, and outputs a result of analyzing the payload, which is metadata, and a payload other than metadata,
A service data decoding unit that receives a payload other than metadata from the metadata analysis unit, demultiplexes it, and decodes the disaster broadcasting information detected through demultiplexing for each service type,
Receives the analysis result of the transmission header from the transmission frame analysis unit, receives the analysis result of the packet header from the service packet analysis unit, and inputs the result of analyzing the payload, which is the metadata, from the metadata analysis unit Receiving system control, and
The analysis result of the transmission header transmitted from the system control unit, the analysis result of the packet header, the result of analyzing the payload which is the metadata, and the disaster broadcasting information for each service type decoded by the service data decoding unit are output on the screen. Display
Automatic or disaster broadcast receiving device comprising a.

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