KR20060030499A - The voice synthesize disaster broadcasting system by terrestial digital multimedia broadcasting - Google Patents

Abstract

The present invention relates to a terrestrial DMB, and more particularly, to a method of receiving a text disaster broadcast from a terrestrial DMB receiver and synthesizing and broadcasting the text of the text disaster broadcast without changing a channel. As described above, the terrestrial DMB receiver according to the present invention checks the reception status of the text disaster broadcast in the FIDC in the FIC of the receiver, and if there is a text disaster broadcast message, synthesizes and outputs the text of the text disaster broadcast to the disaster prediction area. It has the effect of protecting people and property from disasters, eg by voice warnings to residents.

 Terrestrial Digital Multimedia Broadcasting (DMB), Sub Channel, Fast Information Channel (FIC), Fast Information Data Channel (FIDC), Fast Information Block (FIB), Analog Digital Converter (ADC), Automatic Emergency Alert (AEA) Message, Text To Speech (TTS).

Description

Method and apparatus for synthesizing and broadcasting disaster broadcast received by text from terrestrial DM receivers {The Voice Synthesize Disaster Broadcasting System by Terrestial Digital Multimedia Broadcasting}

 1A is a diagram illustrating a structure related to terrestrial DMB broadcasting transmission and reception.

 FIG. 1B is a diagram illustrating the structure of FIG. 5 of an FIC as a terrestrial DMB automatic disaster alarm transmission / reception matching standard. FIG.

 2 is a block diagram illustrating a configuration of a receiver for synthesizing and broadcasting a disaster broadcast received by a text in a terrestrial DMB receiver according to a preferred embodiment of the present invention.

 3 is a flowchart illustrating an operation of a method and apparatus for synthesizing and broadcasting a disaster broadcast received by text in a terrestrial DMB receiver according to the present invention.

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

 100: RF receiver

 110: ADC unit

 120: demodulator

 130: DAB Channel Decoder

 140: audio source decoder

 150: data decoder

 160: input unit

 170: Terrestrial DMB Decoder

 180: audio processing unit

 190: speaker

 200: liquid crystal display

 210: memory

 220: MCU

 230: TTS Database

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to terrestrial digital multimedia broadcasting (DMB), and more particularly, to a method and apparatus for receiving a disaster text broadcast in a terrestrial DMB receiver and broadcasting the contents of the disaster broadcast by voice without moving to a voice channel.

In digital broadcasting, a plurality of programs are efficiently compressed, multiplexed, and broadcast through a repeater.

The digital broadcasting system is composed of a sync channel, a fast information channel (FIC), and a plurality of main broadcasting channels, and each channel is divided by frequency or spreading code according to a modulation scheme adopted by the digital broadcasting system.

The FIC is a channel for transmitting control data for analyzing a received signal, detecting a synchronous signal of a spread signal, and controlling a receiver. The broadcast channel is a channel for transmitting a general broadcast program.

The digital broadcast receiver provides a user with a program of a broadcast channel selected by the user under the control of control data transmitted to the FIC.

However, the conventional broadcast configuration of the disaster alert is a disaster using only a single letter including the disaster type code, the number of disaster areas, the disaster area, the disaster dispatch time, and the disaster message using FIG. 5 Fast Information Data Channel (FIDC) in the FIC. It sends out an alarm and a large amount of voice or video is configured to receive disaster broadcasting using other sub-channels. This is useful for large-scale disaster alerts, such as civil defense alerts, national disasters, or earthquakes affecting the nation at the top disaster issuing agencies.However, local disasters in more than 230 municipalities, counties, and districts, In case of disaster warnings such as heavy rain, heavy snow, and wildfires or local weather forecasting broadcasts to local residents in local disaster situations in cities, metropolitan cities, etc. It is not done efficiently and results in waste of broadcasting resources.

Therefore, there is a need for a technology capable of providing broadcasting by converting text information of FIDC that can be used at all times without unnecessary waste of broadcasting resources to voice.

In addition, the texts of disaster warnings and disaster forecasts usually consist of no more than 140 characters in Korean, and are broadcasted twice or three times after the chime or siren has been called out to disseminate the disaster situation to local residents. New technologies are needed to always provide customized voice alerts tailored to local characteristics in the disaster situation rooms of counties and districts.

Accordingly, an object of the present invention has been made in view of the above-mentioned problems of the prior art, and provides a method capable of broadcasting a voice disaster alert without converting a short-term disaster alarm received through a FIDC of a terrestrial DMB receiver into a separate voice channel. It is to.

Hereinafter, with reference to the accompanying drawings will be described the system configuration of the present invention and its effects and effects for achieving the above object.

1A is a diagram illustrating a structure related to broadcast transmission and reception of terrestrial DMB. It is divided into sink, FIC, and main service channel. FIG. 1B is a diagram showing the structure of FIG. 5 of the FIC as a terrestrial DMB automatic disaster alarm transmission / reception standard.

Referring to FIG. 1B, the terrestrial DMB disaster alarm transmits disaster information through FIG Type 5 of the FIC, and the presence or absence of a disaster alert is indicated by 1 bit in the D2 area of the FIG data field, and when there is no disaster broadcast, the disaster broadcast is 0. If there is one, it is indicated by 1 to determine whether there is a disaster broadcasting.In case of 0, padding data is sent.In case of 1, the disaster message is issued in order of disaster type code, number of disaster areas, disaster area code, disaster time, and contents of the message. Done.

The message consists of a maximum of 16 segments, and the length of one segment is 29 bytes, and a message of up to 464 bytes can be sent.

2 is a block diagram illustrating a configuration of a receiver for synthesizing and broadcasting a disaster broadcast received as a text in a terrestrial DMB receiver according to an exemplary embodiment of the present invention. As can be seen from the present invention is an input unit 160, RF receiver 100, ADC unit 110, demodulation unit 120, DAB channel decoder 130, audio source decoder 140, which is manipulated by a user ), A data decoder 150, a terrestrial DMB decoder 170, an audio processor 180, a speaker 190, and a liquid crystal display 200. The memory 210 to store, the MCU 220 to detect the FIC data decoded by the DAB channel decoder 130, analyze and process the contents of the data, and the TTS (Text To Speech) database to synthesize text data into speech ( 230).

This invention will be described in detail with reference to the accompanying drawings as follows.

According to the present invention, after the user operates the input unit 160 to supply power and inputs a code of a corresponding region where the receiver is located, the MCU 220 stores the corresponding data in the memory 210, and the initial setting is made thereafter. It serves as a typical terrestrial DMB receiver.

After the initial setting is made, the MCU may turn off the power of the terrestrial DMB receiver in the input unit 160, but the RF receiver 100, the ADC unit 110, the demodulator 120, the DAB channel decoder 130, and the MCU 220 ), When the power of the memory 210 is applied and the data of the D2 region for monitoring the disaster broadcasting is extracted to 1 by monitoring the D2 region of the FIG data field of the FIC at all times, the audio source decoder, which is the next stage of the DAB channel decoder 130, is extracted. 140, the data decoder 150, the terrestrial DMB decoder 170, the audio processor 180, the speaker 190, the liquid crystal display 200, and the like, and the MCU 220 supplies the disaster code of the Type 5 field. It analyzes the type, disaster area number, disaster area code, disaster occurrence time, and message content and links to other sub-channels. If the disaster area code matches the initial setting value, it transmits as it is without processing any additional data. Region code matches initial setting In the case of text broadcasting without link information of null, the LCD display 200 character is displayed, the text data is decoded, and the voice is synthesized in a phoneme unit or syllable unit through the TTS database 230 and sent to the audio processor 180. The playback is performed at 190.

In addition, after the series of broadcasts is terminated, the MCU 220 returns to the process of the standby mode determining whether there is a disaster broadcast.

In the present invention, voice disaster alert broadcasting is possible only by text information of Type 5 field in FIC, so that a separate voice channel is not secured in the disaster situation room of the central government, municipalities, and local governments. Disaster information can be broadcasted nationwide or regionally without disaster, and disaster alarm broadcasting can be transmitted and received in accordance with the current terrestrial DMB transmission and reception standards.

As described above, a method of synthesizing and broadcasting a disaster broadcast received by text in a disaster terrestrial DMB receiver according to the present invention is performed when a disaster broadcast is performed in a disaster situation room of a central government, a city, a county, or a local government. It is possible to achieve high efficiency of broadcasting resources because voice broadcasting can be done using only text information using a separate voice channel.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical details of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the examples, but should be defined by the claims.

Claims (4)

RF receiver 100, ADC unit 110, demodulator 120, DAB channel decoder 130, audio source decoder 140, data decoder 150, input unit 160 terrestrial DMB decoder 170, audio A terrestrial DMB receiver including a processor 180, a speaker 190, a liquid crystal display 200, and storing voice data and a corresponding region code in a sentence unit. MCU (220) for analyzing and processing the type of disaster code, number of disaster areas, disaster area code, disaster time, message content of the Type 5 field among the FIC information decoded in the memory 210, DAB channel decoder 130, TTS database 230 for synthesizing text data into voice, which includes disaster broadcasting in Type 5 field of FIC information and region codes are matched, and when there is no link information, display disaster broadcasting text on LCD display Disaster broadcasting by synthesizing the contents of speech by terrestrial DMB receiver According to claim 1, the MCU 220 includes a disaster broadcast code in the Type 5 field of the FIC information and the region code is matched, if there is link information broadcasts the received disaster broadcast as it is, and if there is no link information text A method of synthesizing and broadcasting a disaster-received broadcast received as a text in a terrestrial DMB receiver, comprising synthesizing the contents of a message through a TTS database and broadcasting the synthesized voice.  RF receiver 100, ADC unit 110, demodulator 120, DAB channel decoder 130, audio source decoder 140, data decoder 150, input unit 160 terrestrial DMB decoder 170, audio In the terrestrial DMB receiver including a processor 180, a speaker 190, a liquid crystal display 200, a memory 210 and a DAB channel decoder 130 for storing voice data and a corresponding region code in a sentence unit Of the decoded FIC information, the type of disaster code in the Type 5 field, the number of disaster zones, the disaster zone code, the disaster occurrence time, the message processing time, the MCU 220, and the TTS database that synthesizes text data into voice (230). Disaster broadcasting is included in the Type 5 field of the FIC information and the region code is matched.If there is no link information, the disaster broadcasting text is displayed on the LCD display and the contents of the text are synthesized by voice for disaster broadcasting. Ground characterized by Broadcasting apparatus for synthesizing the emergency broadcast received by the DMB receiver to an audio challenge. The method of claim 3, wherein the MCU 220 includes a disaster broadcast code in the Type 5 field of the FIC information and the region code is identical, and if there is link information, broadcasts the received disaster broadcast as it is and there is no link information. An apparatus for synthesizing and broadcasting a disaster reception received as a text in a terrestrial DMB receiver, comprising synthesizing contents of a text message through a TTS database and broadcasting the synthesized voice.

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