KR101616206B1 - Mobile receiver for dmb disaster broadcasting and method using the same - Google Patents

Abstract

The present invention relates to a mobile digital multimedia broadcasting (DMB) disaster broadcast receiver and a reception method using the same. The mobile DMB disaster broadcast receiver comprises: a disaster message reception unit which distinguishes and receives two or more DMB disaster broadcast messages transmitted from a plurality of channels; a location information generation unit which determines its own location information; a control unit which extracts a location information ID indicating location information from the received two or more disaster messages, and selects a disaster message to be output by referring to the extracted location information ID and its own location information; and an output unit which outputs the disaster message in accordance with instructions of the control unit. The control unit monitors its location information while outputting the disaster message, and when an area where the control unit is located has been changed, selects the disaster message to be output again.

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile DMB disaster broadcast receiving apparatus and a method using the same,

The present invention relates to a mobile DMB disaster broadcast receiving apparatus and a method using the same.

As digital broadcasting is put into practical use, not only a multimedia content corresponding to a conventional TV or radio broadcasting program but also a method of transferring various information to a user has been considered. Especially, a method and a transmission protocol for informing viewers of digital disaster broadcasting using digital broadcasting for public interest purpose are studied and supplemented.

The biggest advantage of DMB disaster broadcasting is that it can watch and receive disaster broadcasting in case of power outages, movements, and bad weather.

However, the DMB disaster alarm broadcasting system currently operated by the National Emergency Management Agency of the National Emergency Management Agency is mainly focused on disaster broadcasting, This is a difficult situation.

In this way, it is possible to solve the problem of not delivering the local disaster situation by conducting a disaster broadcasting for the whole country or the whole country with the excellent network of DMB, and to solve the problem of local disaster that can cope with national disaster and local disaster situation It is necessary to construct broadcasting system.

In addition, a receiving apparatus capable of selectively outputting broadcasting according to a disaster location and a disaster level is required for such an area-based disaster broadcasting system.

In particular, for navigation and disaster broadcasting using a mobile terminal such as a mobile terminal, a location-based service according to a positional change is required.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for receiving DMB disaster alert broadcast messages and locally generated disaster messages, And a method of using the same.

It is another object of the present invention to provide an apparatus and method for selecting and providing an optimal message based on a location of a disaster message in a plurality of channels at the same time.

It is another object of the present invention to provide an effective disaster broadcasting service according to location change by monitoring location change of a mobile terminal.

It is still another object of the present invention to minimize the shadow area of the notification of a disaster message by transmitting and transmitting a disaster message to an external device in the vicinity of the mobile DMB receiving apparatus.

According to an aspect of the present invention, there is provided a disaster message receiving apparatus for receiving at least two DMB (Digital Multimedia Broadcasting) disaster broadcast messages transmitted from a plurality of channels, a location information generating unit for recognizing location information of the disaster message receiver, A control unit for extracting a local information identifier indicating local information from the disaster message, selecting a disaster message to be outputted with reference to the extracted local information identifier and its own location information, and an output unit for outputting a disaster message according to the instruction of the control unit .

The control unit monitors the location information of the user during the output of the disaster message, and presents an external DMB disaster broadcast receiving apparatus for re-selecting the disaster message to be output when the area where the user is located is changed.

According to another aspect of the present invention, there is provided a method for transmitting a disaster message, the method comprising: receiving at least two DMB (Digital Multimedia Broadcasting) disaster broadcast messages transmitted from a plurality of channels; receiving a local information identifier indicating local information from the received two or more disaster messages; Selecting a disaster message to be output by referring to the information identifier and its own location information, and outputting the selected disaster message.

In addition, in the step of outputting the selected disaster message of the disaster broadcast receiving method by the mobile DMB disaster broadcast receiving apparatus, if it is confirmed that the area where the user is located is changed, And the process returns to the step of selecting.

According to the present invention, it is possible to effectively and quickly propagate a disaster broadcast using the conventional DMB broadcasting network and the disaster radio infrastructure, thereby contributing to the protection of people's lives and property.

According to the present invention, even when a plurality of local disaster broadcasts are received, there is an effect of providing broadcasting according to a predetermined priority order.

According to the present invention, a function of parsing and delivering a disaster message can deliver a stable message to an entire area even in an unstable reception state.

1 is an exemplary block diagram of a DMB disaster broadcast system according to the present invention.
2 is an exemplary block diagram of a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method for receiving a mobile DMB disaster broadcast in a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention.
4 is a diagram for explaining a format of a DMB broadcast signal used in an embodiment of the present invention.
5 is a view for explaining a method for transmitting and receiving disaster information through a host transmission unit in a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention.
FIG. 6 is a flowchart illustrating a method of receiving a DMB disaster broadcast when a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention is included in a DMB broadcast shadow zone.

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

In describing the embodiments, descriptions of techniques which are well known in the technical field to which this specification belongs and which are not directly related to this specification are not described. This is for the sake of clarity without omitting the unnecessary explanation and without giving the gist of the present invention.

For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated. Also, the size of each component does not entirely reflect the actual size. In the drawings, the same or corresponding components are denoted by the same reference numerals.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a mobile DMB disaster broadcast receiving apparatus and a method using the same according to embodiments of the present invention.

At this point, it will be appreciated that the combinations of blocks and flowchart illustrations in the process flow diagrams may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, so that those instructions, which are executed through a processor of a computer or other programmable data processing apparatus, Thereby creating means for performing functions. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory The instructions stored in the block diagram (s) are also capable of producing manufacturing items containing instruction means for performing the functions described in the flowchart block (s). Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible for the instructions to perform the processing equipment to provide steps for executing the functions described in the flowchart block (s).

In addition, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative implementations, the functions mentioned in the blocks may occur out of order. For example, two blocks shown in succession may actually be executed substantially concurrently, or the blocks may sometimes be performed in reverse order according to the corresponding function.

Herein, the term " part " used in the present embodiment means a hardware component such as software or an FPGA or an ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components. In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

1 is an exemplary block diagram of a DMB disaster broadcast system according to the present invention.

The DMB disaster broadcasting system according to the present invention may include two or more transmitting apparatuses 1 and 2, a DMB repeater 3, and a receiving apparatus 4.

The transmitting apparatuses 1 and 2 are, for example, devices for transmitting disaster broadcasts nationwide operated by the National Emergency Management Agency of the National Emergency Management Agency or transmitting local disaster broadcasts operated by a local government center .

The transmitting apparatuses 1 and 2 generate a digital disaster announcement signal, insert a digital disaster announcement signal and digital disaster announcement data, convert the digital disaster announcement signal into a high-frequency wireless signal, and transmit the signal to the public via the DMB repeater 3.

It is assumed that the first transmitting apparatus 1 and the second transmitting apparatus 2 are transmitting apparatuses operating on different objects. For example, the first transmission apparatus 1 is a device for transmitting a disaster broadcast in area A, and the second transmission device 2 is a device for transmitting disaster broadcast in area B.

The receiving apparatus 4 receives high frequency radio signals from two or more transmitting apparatuses 1 and 2 at the same time and demodulates and decodes RF signals to check whether a digital disaster announcement signal and digital disaster broadcast data exist, And outputs data.

The mobile DMB disaster broadcast receiving apparatus 4 according to the present invention selects and outputs the most influential disaster broadcasting based on its location.

In the DMB disaster broadcasting system according to the present invention, the transmitter (1, 2) inserts a digital disaster announcement signal and digital disaster broadcast data into a DMB broadcast signal, converts the digital disaster announcement signal into a high frequency radio signal and transmits it to the public via a DMB repeater The digital disaster broadcast receiving apparatus 4 in the form of a general receiver or a special receiver receives a high frequency radio signal and demodulates and decodes the RF signal to check whether a digital disaster announcement signal and digital disaster broadcast data exist or not .

Also, in the case where there are a plurality of disaster broadcasts in which the presence of the digital disaster broadcasting receiver is confirmed, the disaster information related to the disaster broadcasting is extracted from the DMB broadcast signals received from a plurality of channels, And outputs the selected disaster broadcast (disaster message) first.

In addition, the mobile DMB disaster broadcast receiving apparatus 4 continuously monitors its own position, and when the position is changed, re-selects a message to be output from a plurality of disaster messages, and outputs the selected disaster message.

For example, when the mobile DMB disaster broadcast receiving apparatus 4 is located in the area A, even if all the disaster messages are received from the transmitting apparatus 1 in the area A and the transmitting apparatus 2 in the area B, And outputs the disaster message from the transmission device 1 in the area A, which is the local information of the area A, in advance. Thereafter, when the mobile DMB disaster broadcast receiving apparatus 4 periodically monitors its position and recognizes that its position changes from P1 to P2, the mobile DMB disaster broadcast receiving apparatus 4 preferentially outputs a disaster message from the transmitting apparatus 2 in the B region do.

2 is an exemplary block diagram of a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention.

The mobile DMB disaster broadcast receiving apparatus may include a receiving unit 10, a location information generating unit 20, a control unit 30, an output unit 40, and a memory 50.

The receiving unit 10 receives a high frequency radio signal, that is, a DMB broadcasting signal, from at least one transmitting apparatus through a transmitting / receiving antenna. The receiving unit 10 transmits the received information to the control unit 30.

The location information generation unit 20 generates location information of itself through a sensor or the like. The position information generating unit 20 can receive position information from a GPS (Global Positioning System) satellite through a gyro sensor and a beacon based on the received GPS position coordinates in a shaded area. The location information generation unit 20 transmits the generated location information to the control unit 30.

The control unit 30 controls the overall operation of the mobile DMB disaster broadcast receiving apparatus 4 to selectively output the received DMB disaster broadcast.

The control unit 30 may include an extraction module 32 and a determination module 34.

The extraction module 32 extracts arbitrary information from the received disaster message and provides the extracted information to the determination module 34. [

More specifically, the extraction module 32 can extract the disaster area, the disaster grade information, and the message identifier from the received disaster message.

The determination module 34 selects a message to be output from among a plurality of disaster information messages based on the information provided from the extraction module 32, the location information thereof, and the database for selecting a disaster message previously stored in the memory 50, And controls the output unit 40 to output the selected output message.

The output unit 40 outputs a disaster message in response to an instruction from the control unit 30. [

When the digital disaster announcement signal or the digital disaster broadcast data is decoded and received by the receiver, the output unit 40 outputs a digital disaster broadcast in the form of video, sound, or text.

The output unit 40 may include a DMB image reproduction module 41 and an audio reproduction module 42. The amplifier control module 43, the storage data processing module 44, the TTS processing module 44, The control command processing module 46 and the like, and the modules included in the output portion are well known in the art, and the present invention is not limited to these elements. .

The digital disaster broadcasting data can be provided independently of the video data for the other services displayed on the DMB receiver, and the digital disaster broadcasting data can be provided in a superimposed form in a subtitle format.

In another modification, the mobile DMB disaster broadcast receiving apparatus may further include a host transmitting unit and an input unit for parsing and delivering a disaster message to a predetermined external device.

An Emergency Warning System (EWS) disaster broadcast message can be delivered to a device within a predetermined range, for example, within a radius of 500 meters, through a mobile DMB disaster broadcast receiving apparatus including a host transmitting unit.

In this case, the mobile DMB disaster broadcast receiving apparatus that receives the DMB disaster message through the DMB disaster broadcast zone, for example, a transponder outside the tunnel transmits the ESW disaster broadcast message to the mobile DMB disaster broadcast receiving apparatus in the tunnel, Can be minimized.

The host transmitting unit may transmit a wake-up signal to induce viewing of the corresponding broadcast channel in the disaster information, or may change the channel to a disaster broadcast if the other channel is being watched.

To deliver messages by activating a smart device, for example, platform-specific notifications (pushes), such as Google Cloud's Device Messaging (C2DM) or Google Cloud Messaging (GCM) or Apple Push Notification Service (APNS) Method can be used.

The input unit transmits the input information to the control unit 30.

The input unit can receive an installation location of the mobile DMB disaster broadcast receiving apparatus.

In some cases, the input unit may be integrated with an output unit such as a touch pad, or may be separately configured.

5 is a view for explaining a method for transmitting and receiving disaster information through a host transmission unit in a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention.

As shown in FIG. 5, the external apparatus may include another mobile DMB disaster broadcast receiving apparatus.

When it is determined that the mobile DMB disaster broadcast receiving apparatus R1 is located in the shadow area of the DMB disaster broadcasting station such as its tunnel through the location information generating unit of its own, the DMB disaster broadcasting receiving apparatus R1 Transmits its last disaster broadcast information, and transmits a message requesting the latest disaster broadcast information. The DMB disaster broadcast receiving apparatuses R2 and R3 that have transmitted the disaster broadcasting information from the other receiving apparatuses R1 receive latest information on their disaster broadcasting information through the message identifier of the disaster broadcasting information received from the other receiving apparatuses R1 If it is confirmed that the disaster broadcasting information is more up-to-date, it transmits the disaster broadcasting information to the requesting receiving device R1.

In the example of FIG. 5, the latest disaster broadcasting information of the mobile DMB disaster broadcast receiving apparatus R2 outside the tunnel is transmitted to the mobile DMB disaster broadcast receiving apparatuses R1 and R3 in the tunnel.

Through this process, when a disaster message is transmitted to a mobile DMB disaster broadcast receiving apparatus in a shadow area of a DMB disaster broadcast station such as a tunnel, it is possible to minimize a shadow zone and effectively prepare for a disaster, thereby amplifying the effect of the present invention .

3 is a flowchart illustrating a DMB disaster broadcast receiving method of a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention.

The mobile DMB disaster broadcast receiving apparatus first receives two or more DMB (Digital Multimedia Broadcasting) disaster messages transmitted from a plurality of channels and receives the DMB disaster messages in operation S10.

Specifically, the DMB receiving apparatus receiving the digital disaster broadcast receives the high-frequency radio signal of the first channel, that is, the DMB broadcasting signal, through the transmitting / receiving antenna.

The DMB broadcasting signal is transmitted in the format shown in FIG. 4, and the DMB broadcasting signal may include a digital disaster announcement signal.

4 is a diagram for explaining a format of a DMB broadcast signal used in an embodiment of the present invention.

As shown in FIG. 4, the channel through which the digital disaster announcement announcement signal is transmitted may be a fast information channel (FIC) (b). (FIC) or a fast information data channel (FIDC). In this case, the fast information channel (FIC) or the fast information data channel (FIDC) : Fast Information Data Channel) to check whether there is a digital disaster announcement signal.

 When a disaster message is transmitted through a fast information channel (FIC), a digital disaster announcement announcement signal may be transmitted via a predetermined Fast Information Group (FIG) type 5 extension 2.

FIG 5 Extension 2 (FIG 5/2) consists of FIG header and FIG data.

The FIG header consists of a 3-bit FIG TYPE field (set to "101") and a length field (5 bits).

The FIG data includes the digital disaster broadcast validity data indicating the validity of the digital disaster broadcast data and the detailed information of the disaster message. For example, it is possible to determine whether the digital disaster broadcast data is valid by checking the D1 field. For example, it can be determined that digital disaster broadcast data is provided only when D1 = 1. That is, when D1 = 1, the digital disaster broadcast data is inserted instead of the padding, and digital disaster broadcast data can be extracted and displayed on the DMB receiver.

The digital disaster broadcasting data can be provided independently of the video data for the other services displayed on the DMB receiver, and the digital disaster broadcasting data can be provided in a superimposed form in a subtitle format.

After step S10, duplicate disaster messages are collected from among the received two or more disaster messages (S20).

More specifically, a message identifier that identifies a message from two or more received disaster messages is further extracted, and if the disaster message is duplicated by comparing the extracted message identifiers, only one of the duplicated disaster messages is discarded.

Next, a local information identifier indicating local information is extracted from the received two or more disaster messages (S30).

In the FIG type 5 extension 2 (FIG. 5/2) described in FIG. 4, disaster information can be extracted from the information included in the FIG data. The identifier included in the disaster message may be the serial number assigned by the disaster broadcasting organization or the requesting agency for disaster broadcasting or the information included in the FIG data according to the format defined by the agency and may include information on the disaster area and the disaster level have.

Table 1 shows an example of the length and type of the information included in the FIG data.

No length division type  One 1 byte CMD  2 30 byte Message Title [string]  3 1 byte Priority of messages [uint]  4 1 byte Disaster type [uint]  5 4 bytes Dispatch time [DateTime]  6 1 byte Type of area issued [uint]  7 1 byte Number of regions issued [uint]  8 4 bytes Issued user ID [uint]  9 2 bytes Message Contents Length  10 n byte Message contents [string]  11 200 bytes Message content for SMS [string]  12 2 bytes Message content length for TTS  13 n byte Message content for TTS [string]  14 1 byte Information about where to send [enum]  15 1 byte Type of dispatch equipment [enum]  16 1 byte Command mode [byte]  17 1 byte Interval [byte]  18 1 byte Repeat statement [byte]  19 1 byte Broadcaster ID [uint]  20 1 byte Progress [bool]  21 4 bytes Number of mapped geographic and device information  22 4 bytes Region or Equipment ID (FK) [uint]  23 30 byte The name of the connected region or device [string]  24 1 byte Region / Equipment Information Category [uint]

The data format shown in Table 1 is an example, but the present invention is not limited thereto.

After step S30, a disaster message to be outputted is selected by referring to the extracted local information identifier and its own location information (S40).

If the disaster area of the disaster message is a pre-set broadcast setting area al, an upper layer of the broadcast setting area a1, and a lower layer of the broadcast setting area al, it is determined that the disaster message is an output target message. For example, if the preset broadcast setting area a1 is set as Yeongdeungpo-gu, the disaster messages in Yeouido-dong, which is a lower layer of Seoul and Yeongdeungpo-gu, Yeongdeungpo-gu,

If both disaster broadcasting in Seoul and Yeongdeungpo-gu disaster broadcasting are received, check the disaster level of each received disaster broadcast and output the disaster broadcast in the order of higher disaster level, that is, the more serious disaster.

In other words, when there are a plurality of disaster messages determined to be output destination messages, it is determined to preferentially output a message having a high disaster level. The disaster grade may include, for example, an alert and an alert, which means a higher level of disaster rating than the alert.

The above disaster type and grade can be indicated by code information.

After step S40, the selected disaster message is output (S50).

If no DMB channel is output, a disaster message can be displayed after activating the display window so that the user can watch the DMB channel.

Alternatively, if the receiving device is outputting a DMB broadcast of another channel, a pop-up disaster message may be displayed on the DMB image.

Also, if a disaster message is included in a disaster message, the receiving apparatus can automatically change the channel to receive the disaster image.

In another modification, the control unit of the receiving apparatus may notify the user that the disaster message is to be output immediately before or immediately after the disaster message is output, by notifying that the disaster message is to be outputted through a separate lamp or a warning sound of the speaker You can help make the environment your own.

After outputting the disaster message, the receiving apparatus continuously monitors the channel transmitting the disaster message, and if the transmission of the message having the same identifier stops at a predetermined time, for example, one minute or more, .

After step S50, the receiving apparatus monitors its own location information and confirms whether the area in which it is located has changed. The receiving apparatus compares the current position information with the current position information and the position information in step S40. If it is confirmed that the position of the receiving apparatus has changed, the process returns to step S40 to select a disaster message to be output. In this way, disaster broadcasting services based on their location can be provided. However, in order to prevent re-setting too frequently, it is possible to set the position change only when the previous position information and the administrative area of the current position information are changed.

FIG. 6 is a flowchart illustrating a method of receiving a DMB disaster broadcast when a mobile DMB disaster broadcast receiving apparatus according to an embodiment of the present invention is included in a DMB broadcast shadow zone.

When the mobile DMB disaster broadcast receiving apparatus is activated, a digital disaster broadcast channel is searched (S110). If the channel search is successful (S120), the process proceeds to step S10 of FIG.

If the channel search is unsuccessful, it is checked whether a disaster broadcast signal is not received for a predetermined period of time after the channel search is started (S130). If it is determined that the disaster broadcast signal has not been received for a predetermined time, it is confirmed whether the location of the disaster is within the tunnel (S140).

A GPS module and a pre-stored map can be used to determine whether or not the user's own location is within the tunnel. However, in the tunnel, communication using the GPS module is poor, and it is difficult to directly confirm whether or not the position of the tunnel is in the tunnel. Therefore, it is possible to recognize a certain time after entering the tunnel (referring to the moving speed) on the pre-stored map as a tunnel entry with reference to the moving path, the moving speed, and the like of the own position through the GPS module. Since the tunnel recognition method is a known technique, a detailed description will be omitted.

If it is determined that the own position is not the tunnel entry state, the process returns to step S110 to perform channel search again.

If it is determined that the user's own location has arrived, a signal requesting the disaster message is generated and transmitted to another receiving apparatus (S150).

If a disaster message is received from another receiving apparatus (e.g., another vehicle or an outdoor disaster message display board) (S160), it is determined whether the received disaster message is a more recent message than its own disaster message (S170).

If there is no disaster message stored in itself, or if the disaster message is more recent than the disaster message it has, it updates its data (S180).

If the disaster message is not more recent than the disaster message it has, the process returns to step S150 to generate a signal requesting another disaster message and transmit the signal to another receiving apparatus.

And outputs the updated disaster message (S190).

After outputting the updated disaster message, the process returns to step S140 to confirm that the location of the user is still within the tunnel.

It will be understood by those skilled in the art that the present specification may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present specification is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present specification Should be interpreted.

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

10: Receiver
20: Position information generator
30:
40: Output section
50: Memory

Claims (8)

A disaster message receiving unit for receiving two or more DMB (Digital Multimedia Broadcasting) disaster messages transmitted from two or more transmitting apparatuses through a plurality of channels separately;
A location information generation unit for confirming location information of the user;
Extracts a local information identifier indicating local information from each of the received two or more disaster messages, determines whether the received disaster message is an output destination message with reference to the extracted local information identifier and its own location information, A control unit for selecting a disaster message to be output from among a plurality of output destination messages according to a disaster level of the output destination message and its own position when there are a plurality of target messages;
An output unit for outputting the selected disaster message according to an instruction from the control unit; And
A host transmission unit for delivering the selected disaster message to another mobile DMB disaster broadcast receiving apparatus located within a radius of 500 meters from its own location and located in a disaster area;
Lt; / RTI >
The control unit further extracts a message identifier that identifies a message from the received disaster message, and compares the extracted message identifier to discard the remainder of the duplicated disaster message, If the message is not received for more than one minute, it indicates the end of the disaster situation, and the message identifier is given by the disaster broadcasting service issuing organization or the disaster broadcasting service requesting agency,
The control unit monitors the location information of the user during the output of the disaster message, reselects the disaster message to be output when the area in which the user is located is changed,
The host transmitting unit transmits the disaster message selected by the host to the other DMB disaster broadcasting receiving apparatus located within a predetermined distance from the location of the DMB disaster broadcasting receiving apparatus, Requests the other DMB disaster broadcast receiving apparatus to transmit a disaster message selected by the other DMB disaster broadcast receiving apparatus, outputs the received disaster message when the disaster message is received from the other DMB disaster broadcast receiving apparatus,
Wherein the host transmitting unit receives a disaster message selected by the other DMB disaster broadcast receiving apparatus from the other DMB disaster broadcast receiving apparatus and transmits the disaster message received from the other DMB disaster broadcast receiving apparatus to the selected disaster message receiving apparatus Message, and when the disaster message received from the other DMB disaster broadcast receiving apparatus is newer than the disaster message selected by the other DMB disaster broadcast receiving apparatus, the disaster message to be outputted is updated and the disaster message received from the other DMB disaster broadcast receiving apparatus And transmits the disaster message selected by the user to the other DMB disaster broadcast receiving apparatus if the information is not newer than the disaster message of the user. The method according to claim 1,
The control unit refers to the location information of the user and selects the disaster information corresponding to the area where the user is located as an output message, and disaster information of the lower administrative zone is higher than disaster information of the upper administrative zone A mobile DMB disaster broadcast receiving device. 3. The method according to claim 1 or 2,
Wherein the control unit further extracts a disaster level identifier indicating a disaster level from the received disaster message and sets a disaster message having a higher disaster level as a priority than a message having a lower disaster level. delete A method for receiving a disaster broadcast by a mobile DMB disaster broadcast receiving apparatus,
Distinguishing and receiving two or more DMB (Digital Multimedia Broadcasting) disaster broadcast messages transmitted through a plurality of channels from two or more transmitting apparatuses;
Extracting a local information identifier indicating local information from each of the received two or more disaster messages;
Determines whether the received disaster message is an output destination message by referring to the extracted local information identifier and its own position information, and outputs, in accordance with the disaster level of the output destination message and its own position, Selecting a disaster message; And
Outputting the selected disaster message
Lt; / RTI >
Between the step of receiving the disaster broadcast message separately and the step of selecting the disaster message to be output,
Extracting a message identifier for identifying a message from the received disaster message, comparing the extracted message identifier, and discarding the remainder of the duplicated disaster message if the duplicated message identifier is received, And displaying the end of the disaster situation if the event is not received, the message identifier being given by a disaster broadcasting service issuing organization or a disaster broadcasting service requesting organization
In the step of outputting the selected disaster message,
Monitors the location information of the user and returns to the step of selecting the disaster message to be output,
In the discriminating and receiving of the disaster broadcasting message,
If it is determined that the user is located in the shadow zone of the DMB disaster broadcasting through the user's own location information, the DMB disaster broadcasting receiving apparatus located within a predetermined distance from the user's own location, while transmitting the selected disaster message, The DMB disaster broadcast receiving apparatus requests the receiving apparatus to transmit a disaster message selected by the other DMB disaster broadcast receiving apparatus and outputs the received disaster message when the disaster message is received from the other DMB disaster broadcast receiving apparatus,
When receiving a request for transmission of a disaster message from another DMB disaster broadcast receiving apparatus together with receiving the disaster message selected by the other DMB disaster broadcast receiving apparatus, compares the disaster message received from the other DMB disaster broadcast receiving apparatus with the disaster message selected by the other DMB disaster broadcast receiving apparatus If the disaster message received from the other DMB disaster broadcast receiving apparatus is newer than the disaster message selected by the other DMB disaster broadcast receiving apparatus, the disaster message to be output is updated, and the disaster message received from the other DMB disaster broadcast receiving apparatus transmits its own disaster message And transmitting the disaster message selected by the user to the other DMB disaster broadcast receiving apparatus if the latest information is not available. 6. The method of claim 5,
Wherein the step of selecting the disaster message to be output comprises:
The disaster information corresponding to the area in which the user is located is selected as the output message, and the disaster information of the lower administrative district is ranked higher than the disaster information of the upper administrative district. A receiving method of a broadcast receiving apparatus. The method according to claim 5 or 6,
Wherein the step of selecting the disaster message to be output comprises:
Further extracting a disaster grade identifier indicating a disaster grade from the received disaster message and making the disaster message having a higher disaster grade a priority than a message having a lower disaster grade.

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