KR100798464B1 - Broadcast receiving terminal and operation control method - Google Patents

Abstract

The present invention relates to a broadcast receiving terminal for limiting viewing of digital multimedia broadcasting and the like in a dangerous section using a safety driving information (SDI) service, and an operation control method thereof. In the operation control method of the broadcast receiving terminal, if a message including the dangerous section information is received through the safe driving information service while receiving and reproducing the broadcasting signal, the dangerous section is registered based on the received message, If is found to be within the registered danger section, the reproduction of the broadcast signal is stopped. As a result, viewing of the broadcast is restricted within the registered dangerous section, so that safe driving can be achieved.

Description

Broadcasting receiving device and operation control method

1 is a block diagram of a broadcast receiving terminal according to an embodiment of the present invention;

2 and 3 are views referred to in the description of the SDI message used in the operation control method of the broadcast receiving terminal according to the present invention; and

4 is a flowchart provided to explain an operation control method of a broadcast receiving terminal according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: DMB receiving unit 120: wireless communication unit

130: GPS processing unit 140: key input unit

150: output unit 160: memory unit

170: control unit

The present invention relates to a broadcast receiving terminal and an operation control method thereof, and more particularly, to a broadcast receiving terminal for limiting viewing of a digital multimedia broadcasting in a dangerous section by using a safety driving information (SDI) service and the same. It relates to an operation control method.

Digital multimedia broadcasting or DMB (Digital Multimedia Broadcasting) refers to a digital video or audio broadcasting technology that can be viewed on the go and a broadcast service using the technology. Digital multimedia broadcasting was developed to replace terrestrial analog radio broadcasting, but with the development of technology, it is possible to transmit not only the original audio data but also DVD-level video data.

In recent years, broadcast receiving terminals capable of watching digital multimedia broadcasting are rapidly spreading, and terrestrial DMB broadcasting and other commercial services are being entered in earnest, so that users can enjoy various contents such as music, text, data, and video even in a running car. It became.

However, when watching a digital multimedia broadcasting while driving a vehicle, the driver's perception ability may be greatly reduced in steering wheels, brakes, accelerator pedal angles, driving speeds, and the like, leading to large traffic accidents. In particular, watching a broadcast in a vehicle driving a danger section such as a speeding danger point, an accident-prone area, an accident-prone area, and the like causes a greater accident risk.

Therefore, in order to prevent accidents, it is desirable to limit the viewing of broadcasts while driving a vehicle. However, in view of the backlash of related industries or the convenience of passengers, limiting the viewing of broadcasting while driving a vehicle or applying laws and regulations on it is necessary. It is not expected to be easy. Therefore, for the sake of the safety and safety of other drivers or passengers before the law, there is a need to limit the viewing of broadcasting even in a vehicle that is driving at least a dangerous section.

Accordingly, an object of the present invention is to provide a broadcast receiving terminal and an operation control method capable of limiting viewing of a broadcast in a section registered as a dangerous section through a safe driving information service.

Operation control method of the broadcast receiving terminal according to the present invention for achieving the above object, the step of receiving and reproducing the broadcast signal, when receiving a message containing the dangerous section information through the safe driving information service, Registering the danger section based on the step, and if the current position is determined to be within the danger section, stopping the reproduction of the broadcast signal.

On the other hand, the broadcast receiving terminal according to the present invention, the DMB receiving unit for receiving a digital multimedia broadcasting signal and outputting as a playable signal, a GPS processing unit for determining the current position based on the GPS satellite signal, and the signal output from the DMB receiving unit Control the playback, register the danger section based on the message received through the safe driving information service, and if it is determined that the current position determined by the GPS processing unit is within the danger section, playback of the signal output from the DMB receiver; It includes a control unit for controlling to stop.

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

1 is a block diagram of a broadcast receiving terminal according to an embodiment of the present invention. Referring to FIG. 1, the broadcast receiving terminal according to the present embodiment includes a DMB receiving unit 110, a wireless communication unit 120, a GPS processing unit 130, a key input unit 140, an output unit 150, and a memory unit 160. ), And the control unit 170.

The DMB receiving unit 110 receives the digital multimedia broadcasting signal tuned by the user and restores the reproduced video and audio signal through demodulation and decoding. The wireless communication unit 120 provides an interface for wireless communication with a base station through an antenna, a duplexer filter for separating transmission and reception signals from an antenna, a power amplifier for amplifying a transmission signal, a frequency upconversion circuit of a transmission path, and a reception path. Frequency down conversion circuit, and the like.

The GPS processor 130 receives a GPS (Global Positioning System) satellite signal to determine a current position through a predetermined signal processing process. The key input unit 140 includes a plurality of keys including a numeric key and a function key, and transmits a signal corresponding to a key pressed by the user to the controller 170 to receive an operation command or data of the user.

The output unit 150 includes a liquid crystal display (LCD) display window, and displays a received broadcast such as a menu for operation control, information on an operation state, and the like. The memory unit 160 includes a ROM, a RAM, a flash memory, and the like, and stores a program or data necessary for operating the broadcast receiving terminal, and various data desired by the user, and is output through the DMB receiving unit 110. Broadcast data may also be stored.

The controller 170 controls the operation of each unit to control the overall operation of the terminal. In particular, the controller 170 controls the audio and video signals output through the DMB receiving unit 110 to be reproduced through the output unit 150, and the SDI (Safety Driving Information) message described later through the DMB receiving unit 110. If received, the dangerous section is registered according to the received SDI information, and if the current position identified by the GPS processing unit 130 is within the registered dangerous section, the audio and video signals output through the DMB receiving unit 110 are output. Control to stop the reproduction in the unit 150.

2 and 3 are views referred to for describing the SDI message used in the operation control method of the broadcast receiving terminal according to the present invention.

TPEG messages related to the Transport Protocol Expert Group (TPEG) application service, which is a transport and traveler service technology for mobile multimedia broadcasting, are delivered to the broadcast receiving terminal in a mixed state as shown in FIG. 2. TPEG messages have the same container structure, which is called a TPEG message container. The SDI message is one of these TPEG messages, and the SDI message can convey the danger section information.

As illustrated in FIG. 3, the SDI message includes a message management container, an application event container, and a location container.

The message management container includes a message identifier (MID: Message Identifier), a version number (VER: Version Number), a message generation time (MGT: Message Generation Time), a start time (STA: Start Time), and an end time (STO: Stop Time). ), Message Expiry Time (MET), and Validation (VAD).

Here, the message identifier is an identifier for a message related to each event in the service component. The version number refers to a sequential number for identifying successive messages having the same message identifier. When an event occurs, the version number is incremented one by one as information is updated from the first number (VER = 0).

The message creation time is a date and time stamp that records the date and time the message was actually created and is used to manage the message. The start time may indicate a time when an event enters a state, which may be a time when the event has already entered or is scheduled for future entry. The end time may indicate the time at which the event deviates from a state, which may have already deviated or is scheduled to deviate in the future. The message valid time indicates the date and time when the validity of the message is lost, that is, the date and time when the message is deleted. The validity means total message count information constituting the SDI message and is used when there is a need to provide the receiver with the total number of SDI messages.

The information transmitted to the application event container of the SDI message is strictly state information, not event information. The description of this state or event information follows a hierarchical structure, in order to ensure terminal compatibility according to the extension of the specification and the addition of components. The top-level class defined by the event container consists of four items including a Version Component, a Point Component, a Classifier Component, and a Properties Component. Addition or extension of subclasses can only be done by adding item identifiers.

Here, the version item includes a function of managing the data version based on the creation date of the SDI data, and the point item includes an identifier (ID) of the actual point where the SDI is located. The classification items include safety driving type codes (speeding hazard points, accident occurrence points, etc.) and facility type codes (high prices, underground roads, etc.). The subclasses concerned are safety driving classifiers and facility classifiers.

The attribute item describes the attribute information of the SDI message and the speed limit information and the direction (angle) information of the guide point and the actual point for accurate matching between the guide point and the actual point on the map in the terminal with the map.

In the SDI message, the location container is used to deliver the location reference message, and is composed of three parts: Default Language Code, Location Co-ordinates, and Additional Location Descriptions.

4 is a flowchart provided to explain an operation control method of a broadcast receiving terminal according to an embodiment of the present invention. Referring to FIG. 4, when the safe driving function is not selected by the user, a general broadcast signal reproduction process is performed (S200 and S270).

On the contrary, when the safe driving function is selected by the user, the user is controlled to limit the viewing of the broadcast in the danger section. First, the broadcast signal tuned through the DMB receiver 110 is received under the control of the controller 170 (S205). . The DMB receiver 110 demodulates the received broadcast signal to generate a transport stream, and the generated transport stream is divided into elementary streams such as video, audio, and data information, and decoded, respectively, to transport units. In operation S210, a broadcast signal, such as an audio and video signal and data information, is reproduced.

Since the DMB receiver 110 may receive the above-described SDI message through the safe driving information service, which is one of the digital multimedia data services, at the same time as watching the digital multimedia broadcast, the controller 170 may receive the signal from the signal output from the DMB receiver 110. It is determined whether the SDI message has been received (S215).

As a result of the determination in step S215, when the SDI message is received, information necessary for safe driving of the user, such as a speeding danger point on the road and an accident occurrence point, may be obtained from the received SDI message, and the controller 170 may acquire The danger section is registered in the memory unit 160 based on the information (S220). If the danger section is not registered because the SDI message is not received, the broadcast signal generated from the transport stream is reproduced (S265), and this process may be terminated by the user through the key input unit 140. It is repeatedly performed until (S255).

However, if the danger section is registered by receiving the SDI message (S215, S220), the control unit 170 determines the current position through the GPS processing unit 130 (S230), and the identified current position is a memory unit ( If it is within the danger section registered at 160, it is controlled to stop the reproduction of the broadcast signal (S245). In this case, the controller 170 may control to output a warning signal indicating that the dangerous area has been entered through the output unit 150.

If the current position is within the danger section, the controller 170 stores the broadcast signal output from the DMB receiver 110 in the memory unit 160 (S250), and if it exits the danger section, reproduces the stored broadcast signal (S260). . In case of a broadcast receiving terminal having a time shift function, the part which cannot be played back within the danger section by using the time shift function and after It is also possible to control the portion to be played back continuously.

By the above-described process, it is possible to set the danger section according to the received SDI information, limit the viewing of the broadcast when entering the set danger section, and control to allow the viewing of the broadcast again when the danger section is exited.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

As described above, according to the present invention, the dangerous section is registered through the SDI message received through the safe driving information service, and when the registered dangerous section is reached, the broadcast viewing can be restricted. Therefore, it is possible to prevent the occurrence of an accident due to viewing the broadcast in the danger zone, and to promote safe driving.

Claims (10)

Receiving and reproducing a broadcast signal; Registering a danger section based on the received message if a message including the danger section information is received through the safe driving information service; And If it is determined that the current location is within the dangerous section, stopping the reproduction of the broadcast signal and outputting a warning signal indicating that the dangerous section has been entered; and controlling the operation of the broadcast receiving terminal. . The method of claim 1, The interruption of the reproduction of the broadcast signal is executed when the safe driving function is selected. The method of claim 1, When the reproduction of the broadcast signal is stopped, storing the broadcast signal of which reproduction has been stopped, and reproducing the stored broadcast signal when the dangerous signal is out of the danger section; and controlling the operation of the broadcast receiving terminal. . The method of claim 1, The message is a method of controlling the operation of a broadcast receiving terminal, characterized in that the SDI (Safety Driving Information) message which is one of the TPEG (Transport Protocol Expert Group) message. The method of claim 1, And determining the current position based on a GPS satellite signal. The method of claim 1, And the broadcast signal is a digital multimedia broadcast signal. A DMB receiving unit which receives a digital multimedia broadcasting signal and outputs it as a playable signal; A GPS processor to determine a current position based on a GPS satellite signal; And When the signal output from the DMB receiver is controlled to be reproduced, and a danger section is registered based on a message received through a safe driving information service, and the current position determined by the GPS processing unit is determined to be within the danger section, the And a control unit which stops the reproduction of the signal output from the DMB receiving unit and outputs a warning signal indicating that the dangerous section has been entered. The method of claim 7, wherein The control unit, when controlling to stop the reproduction of the signal output from the DMB receiving unit, and stores the signal output from the DMB receiving unit, if the deviation is out of the danger zone, characterized in that the control to reproduce the stored signal Receiving terminal. The method of claim 7, wherein And a control unit for outputting the warning signal under the control of the control unit. The method of claim 7, wherein The message is a broadcast receiving terminal, characterized in that the SDI (Safety Driving Information) message is one of the Transport Protocol Expert Group (TPEG) message.

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