JP2010171896A - Relay and system for relaying information by broadcast waves - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a relay system that relays emergency information by broadcast waves to a local area network. <P>SOLUTION: The relay system of emergency information by broadcast waves includes a communication device comprising a relay and at least one information display section and connected to the same local area network to which the relay is connected so as to be ready for reception, wherein the relay comprises a receiving section to receive digital broadcast, a decoding section to decode the received digital broadcast, an accumulating section to accumulate decoded digital broadcast, an information extracting section to extract information including the predetermined contents from the accumulated digital broadcast, and an information transmitting section to broadcast the extracted information to the same local area network. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a relay apparatus and system for relaying information by broadcast waves. In particular, when emergency information or the like is received using a Java (registered trademark, the same applies hereinafter) data broadcasting service, the emergency information or the like is relayed and transmitted to a personal computer or the like connected to a local area network. The present invention relates to a relay device and a system.

  Conventionally, a service for relaying and providing disaster information and the like via a network such as the Internet is known (Non-Patent Document 1). According to the service, etc., for the purpose of reducing damage caused by earthquakes, volcanoes, weather, earth and sand, and snow and ice disasters, disaster site information including text or images, disaster site video or audio information using live cameras, etc. are provided. Has been. The user can access the service using his / her terminal device or the like and know the information.

  Conventionally, there has been known a digital broadcast receiver capable of transmitting a message such as an emergency alert to a preset emergency contact when an emergency alert or the like is received (Patent Document 1). According to the digital broadcast receiver, the received emergency alert signal or the like is converted into a mail format by the digital broadcast receiver and transmitted to the server, and the server transmits the mail to the communication terminal, whereby the user Says that it can check emergency alert signals even when it is away from the digital broadcast receiver.

  Conventionally, a system that allows a radio listener or a television viewer to access supplementary information related to a broadcast program received in real time is known (Patent Document 2). According to the system, etc., by synchronizing the local time of the receiver and transmitter according to the same universal time, the flow of information transmitted and received is always synchronized regardless of the relative position of the receiver and transmitter. The user can access additional information from the World Wide Web related to the topic.

  Conventionally, there has been known a broadcast receiving apparatus for performing reservation recording of a received program using an external recording device (Patent Document 3). According to this technique, the information specifying the recording destination is included in the reservation data, whereby the receiving apparatus and the recording apparatus can be linked.

  Furthermore, in recent years, a technique is known in which a television receiver or the like is used as a Java virtual machine using a method of transmitting encoded data by broadcast waves (Non-Patent Document 2). According to this technology, a broadcast station transmits a message or a program to a television receiver or the like as a Java virtual machine, and the television receiver or the like uses a Java application programming interface (Java API) to process the received message. A predetermined process or the like can be performed. The technology in this technical field that causes a television receiver or the like capable of receiving digital broadcasting to operate as a Java virtual machine is incorporated herein by reference in its entirety.

JP-A-2005-51602 JP 2008-118667 A JP 2008-310952 A

"Disaster Prevention Science and Technology Research Institute", [online], National Institute of Disaster Prevention Science and Technology, December 26, 2006, [Search January 8, 2009], Internet, <URL: http: // www .bosai.go.jp /> Japan Radio Industry Association, “Application Execution Environment Standard for Digital Broadcasting (ARIB STD-B23 1.1 Version)”, Part 2 “Application Execution Environment”, February 5, 2004

  However, in the past, when using video or audio information, when an emergency alert broadcast information message using a personal computer connected to a TV or the Internet is to be received as video or audio information, a personal computer or the like is used. It was necessary to connect in advance to the transmission source of the target information. Therefore, if the setting based on a predetermined connection procedure from the receiving terminal to the transmission source is not performed, the user loses the opportunity to receive emergency information and the like. In addition, when connecting to the Internet using a broadband router (hereinafter simply referred to as “router”), it is not possible to send information directly from the Internet side. It is necessary to perform special settings such as sending information or opening a specific port to the router, such as setting a specified port, which requires expert knowledge from the user, May impose a high load. Furthermore, it is necessary to connect each of personal computers, televisions, and the like to the target service providing apparatus, which consumes resources such as line bandwidth.

  Conventionally, in a digital broadcasting system that relays a server and transmits mail to a communication terminal, local emergency information such as an alarm for notifying an earthquake is received by a receiving device installed in the target area. Then, by relaying the server and transmitting the mail to the communication terminal, even if the destination communication terminal is moving outside the target area, the user can receive the earthquake information from the receiving device that is the information distribution target. Etc. can be known. However, in this case, although there is a role of information transmission, the relationship between the information target area and the user's whereabouts is not particularly taken into account, and it is particularly important to call any action to the user whose location moves with the communication terminal. It was not considered. Further, in the method of transmitting information via the Internet, there may be a case where information transmission stagnate due to the influence of an increase in Internet traffic. Accordingly, there has been a problem that it is difficult to quickly transmit information when access to a disaster information provider or a communication line in an information target area is concentrated.

  In addition, in a system or the like for accessing supplementary information related to a broadcast program received in real time, the broadcast program and supplementary information are associated with each other using the world time, and the user's whereabouts or the receiving device is installed. Because it is not based, it did not always correspond to emergency information at the residence or installation location.

  Furthermore, in a broadcast receiving apparatus or the like that can cooperate with an external device according to the prior art, keywords that are not included in the program table or a keyword is presented until immediately before the start of broadcasting in order to start operation based on reservation data designated in advance by the user. It is not included that the external device starts a predetermined operation in response to reception of specific information that is not assumed by the user, such as information that is not performed.

The present invention provides a relay system including a relay device that automatically relays broadcast wave information to a personal computer or the like without requiring the user to set up a service or the like for providing emergency information based on a predetermined connection procedure. The purpose is to provide. It is another object of the present invention to provide a relay system that relays the information without requiring expert knowledge of a user and avoiding a heavy load on a personal computer as a relay destination.
It is another object of the present invention to provide a relay system capable of transmitting emergency information and the like to a user without relaying a server device and avoiding the influence of Internet traffic.
It is another object of the present invention to provide a relay system including a relay device that can simultaneously transmit emergency information or a message based on the emergency information in response to emergency information at a user's location or a receiving device installation location. .
Furthermore, an object of the present invention is to provide a relay system that relays information in response to emergency information that is not assumed by the user.

  In the present invention, the following means are provided.

  According to a first aspect of the present invention, there is provided a relay system for relaying information broadcast by digital broadcasting, wherein the relay system includes a relay device and at least one information display unit and is connected to the same local device. -Including communication devices connected to be receivable in the area network, the relay device has a receiving unit for receiving digital broadcasts, a decoding unit for decoding received digital broadcasts, and a storage for storing decoded digital broadcasts And an information extraction unit that extracts information including predetermined contents from the stored digital broadcast, and an information transmission unit that broadcasts the extracted information in the same local area network. A relay system is provided.

  Preferably, the relay device included in the relay system according to the present invention is a Java virtual machine that can use a Java API known in the art. Such a relay device can receive a digital broadcast from a broadcast station as a Java data broadcast. Therefore, the broadcasting station can transmit a character string for displaying a screen or a program for executing a predetermined process to the relay apparatus as the Java virtual machine according to a predetermined specification. The relay apparatus according to the present invention can perform processing such as extraction of a character string using a predetermined API. Typically, a Java data broadcast receiver or the like including a relay device according to the present invention accumulates data sent by broadcast over time using a storage medium or the like, and stores predetermined data or information from the accumulated data. Take out the program and work.

  In one embodiment, a relay system according to the present invention connects a relay device that relays and simultaneously transmits information received by broadcasting, a communication device as a terminal device that receives the simultaneously transmitted information, and connects these devices. A local area network for

  Broadcast, which is a format in which information is transmitted by a relay device included in the relay system according to the present invention, is known in the art and refers to transmitting information toward an unspecified number of communication devices in a network. That is, in the relay system according to the present invention, the relay device transmits the extracted information all at once in the local area network without specifying the communication device that receives the information in advance. The communication device that receives the extracted information may be connected to the same router or the like in the local area network, and the connection form may be wired or wireless. In the relay system according to the present invention, the relayed emergency information and the like are transmitted to the local area network without going through the external Internet or server device. It becomes possible to relay information and the like quickly.

  Further, the relay device included in the relay system according to the present invention may be combined with a display device or the like, and the information extracted by the information extraction unit may be displayed in the display area of the display device. The display form may be an overlay with a television broadcast screen, or may be displayed in an area appropriately divided within the display area of the display device.

  Moreover, the at least one information display part with which the communication apparatus contained in the relay system concerning this invention is provided may display a character and may display an image. Alternatively, the information display unit may simply indicate that the communication device is receiving predetermined information. For example, the communication device may include a lighting unit that turns on when emergency information such as a natural disaster is received, and may be handled as an information display unit for transmitting that emergency information is received.

  The predetermined information extracted by the information extraction unit of the relay device included in the relay system according to the present invention includes emergency information such as disaster information, but is not limited thereto. The predetermined information can be defined in advance. For example, the information extraction unit of the relay apparatus may extract the phrase in response to the decoded digital broadcast including a predetermined phrase. Further, for example, the information extraction unit may extract the information in response to the fact that the decoded digital broadcast includes predetermined information in the form of meta information or code number that is not displayed to the user. Good. The predetermined information extracted in this way includes authentication information for authenticating all or part of the predetermined information, information indicating the priority of the predetermined information, and an update history of the predetermined information Attribute information such as, information indicating an expiration date of the predetermined information, information on a computer program or an execution library associated with the predetermined information, and the like may be arbitrarily included.

  The storage unit of the relay device included in the relay system according to the present invention may be a single storage medium or the like, or may be used as a storage medium for storing computer programs other than broadcasts, and can be designed as appropriate. .

  The information transmitting unit of the relay apparatus included in the relay system according to the present invention broadcasts the predetermined information extracted by the information extracting unit described above in the local area network. The broadcast information can be received by another terminal device connected to the same broadband router or the like.

  In this way, in the relay system according to the present invention, in response to the relay device receiving the predetermined information, the predetermined information and the information related thereto are within the same local area network. Broadcast to the communication devices connected to the network. Even when the predetermined information includes information such as authentication information, priority, and related computer programs, these are broadcast as part of the predetermined information in the local area network by the relay apparatus according to the present invention. And relayed. Accordingly, the communication device or the like does not need to be specified in advance from the relay device, and can receive predetermined information relayed by the relay device.

  In addition, the relay device relays authentication information or priority information transmitted by a broadcasting station or the like to a communication device or the like as it is, and the communication device or the like may perform authentication work and priority determination using the information. Is possible. Therefore, since the relay system according to the present invention does not require mutual authentication between devices connected in the local area network, the user does not need specialized knowledge such as network setting. The relay system according to the invention can be used.

  Furthermore, in the relay system according to the present invention, the relay device includes a message generation unit that generates a message based on the extracted information, and broadcasts the generated message from the information transmission unit.

  The message generation unit of the relay device according to the present invention generates a message based on the information extracted by the information extraction unit. Here, the generation of the message includes selection of a predetermined message. A template may be appropriately used for the message generation unit. For example, a message may be generated by adding words or the like having readability as appropriate to words or character strings included in the predetermined information.

  Furthermore, in the relay system according to the present invention, the communication device displays information transmitted from the information transmission unit on the information display unit.

  The communication device of the relay system according to the present invention can operate as a terminal device that receives and displays information relayed by the relay device. By using the authentication information included in the decrypted digital broadcast, the communication device can authenticate that the information transmitted from the information transmission unit of the relay device is valid. Accordingly, misinformation or the like that has reached the local area network via some route other than the relay device may not be displayed on the information display unit of the communication device.

  In the relay system according to the present invention, the information broadcast from the relay device may include a priority that can be included in the decoded digital broadcast or a priority generated by the relay device. The form in which the authentication information and the priority are used for the communication device will be described in the embodiment according to the present invention.

  The communication device only needs to be able to receive information broadcast from the relay device, and the user of the relay system according to the present invention does not need a procedure for designating the relay device from the communication device, and each individual device from the relay device. The relay system according to the present invention can be used together with authentication information without requiring a procedure for designating a communication device.

  The relay system according to the present invention further includes an authentication unit that generates authentication information for authenticating information including predetermined contents by the communication device, and broadcasts the generated authentication information from the information transmission unit.

  The relay device included in the relay system according to the present invention may include an authentication unit, and the communication device may generate authentication information for authenticating information including predetermined content. Therefore, in the relay system according to the present invention, information can be transmitted more safely by using authentication between the relay device and the communication device.

In this way, a communication device that receives relayed information can authenticate that the relayed information is valid information even when the authentication information is not included in the broadcast wave. For example, even when it is difficult to receive a part of a broadcast including authentication information in a situation where reception of radio waves is unstable, the relay apparatus can generate such authentication information by compensating for such a situation.
When predetermined authentication information is included in the decrypted digital broadcast, the relay device can relay the authentication information as it is to the communication device.

  The authentication information used in the relay system according to the present invention may appropriately use an authentication technique known in the art. Specifically, it is possible to appropriately select one-way information communication that reaches the communication device from the broadcasting station via the relay device and can use it as authentication information in the relay system according to the present invention. It is.

  Furthermore, in the relay system according to the present invention, the relay device includes a position information acquisition unit that acquires position information of the relay device.

  Specifically, the position information of the relay device according to the present invention may be position information on a map. The relay device included in the relay system according to the present invention can use position information representing a place on the map where the relay device is installed, based on the position information of the relay device acquired by the position information acquisition unit. . The relay device according to the present invention may include a storage medium as appropriate in order to store the position information and the like.

  Furthermore, in the relay system according to the present invention, the relay device includes a priority generation unit that generates a priority based on the extracted information and the position information, and transmits information together with the extracted information and the position information. Broadcast from the department.

  The priority generated by the communication device included in the relay system according to the present invention can be generated based on the information extracted from the decoded broadcast and the position information of the relay device. If the decoded digital broadcast includes information indicating a predetermined priority, the relay device may relay the information indicating the predetermined priority to the communication device as it is.

  In one embodiment, when the extracted information is information related to the occurrence of an earthquake, and the information includes information related to the estimated location of the epicenter and the magnitude of the earthquake, the relay device according to the present invention provides the positional information of the relay device. If there is a place where there is a risk of the impact of the earthquake, a high priority can be generated. On the other hand, when the position information of the relay device is a place where there is no possibility of the influence of the earthquake or the influence is considered to be small, a low priority can be generated. The priority generated in this way can be transmitted to the communication device together with emergency information and the like. For generating priority based on the extracted emergency information and relay device position information, the linear distance between the two on the map may be used, and information indicating that there is a public transportation route between the two May be used and can be designed as appropriate.

  In this way, the relay apparatus according to the present invention can generate priority information not included in the decoded digital broadcast using the position information of the relay apparatus. Therefore, even when emergency information is transmitted from a broadcasting station by wide-area broadcasting such as satellite broadcasting, for example, the relay system according to the present invention uses the location information of the relay device to represent the location on the map represented by the location information. The priority of the emergency information can be generated.

  According to the second aspect of the present invention, the relay device relays information broadcast by digital broadcasting, and the relay device includes at least one information display unit and is connected to the same local device. A receiving unit that is connected to a communication device that is receivably connected in the area network, receives a digital broadcast, a decoding unit that decodes the received digital broadcast, a storage unit that stores the decoded digital broadcast, What is claimed is: 1. A relay apparatus comprising: an information extraction unit that extracts information including predetermined contents from stored digital broadcasts; and an information transmission unit that broadcasts the extracted information in the same local area network Provided.

  The relay apparatus according to the present invention may be provided in the form of a single product including the above-described components, or may be provided in a form that is detachable via an appropriate interface provided in a personal computer or the like, It may be provided by being incorporated in another device such as a receiver. The video / audio output unit may include an appropriate interface unit or may be integrated.

  According to the third aspect of the present invention, there is provided a relay program for relaying information broadcast by digital broadcasting, the relay program being the same to which a communication device including a relay device and at least one information display unit is connected. In the local area network, a receiving means for receiving a digital broadcast, a decoding means for decoding the received digital broadcast, a storage means for storing the decoded digital broadcast, and a predetermined content from the stored digital broadcast are included. There is provided a relay program characterized in that a computer comprising information extracting means for extracting information and information transmitting means for broadcasting the extracted information in the same local area network is caused to function as a relay device. The

  The relay program according to the present invention can be provided in the form of an arbitrary computer-readable medium such as a memory card or a read-only memory (ROM). For example, the television receiver may be provided with a microprocessor and a storage medium to execute the relay program according to the present invention. The relay program according to the present invention may be received in the form of broadcast, decoded by the decoding unit of the relay device, and extracted by the information extracting unit. The relay program according to the present invention can be provided in any form known in the art, such as a binary format that can be executed alone, a binary code that uses an appropriate library together, or a script language source code. Further, the relay program according to the present invention can be combined with existing technologies such as a receiving program such as a digital television broadcast, an e-mail transmission program, and a reserved recording program, and such a combined technology is also included in the present invention. Included in the technical scope. Furthermore, the technique of the present invention provides the steps for relaying information or messages in FPGA (field programmable gate array), ASIC (application specific integrated circuit), equivalent hardware logic elements, programs Possible integrated circuits, or a combination thereof, can be provided in the form of a program that can be stored, that is, as a program product. Specifically, a relay program for the relay system according to the present invention can be provided as a form of a custom LSI (large scale integrated circuit) including a data input / output, a data bus, a memory bus, a system bus, and the like. The form of the program product stored in the integrated circuit is also included in the technical scope of the present invention.

With the configuration as described above, in the relay system according to the present invention, it is not necessary for the user to set a service or the like for providing emergency information based on a predetermined connection procedure. Thus, it is possible to provide a relay system including a relay device that automatically relays to, for example. Further, in the present invention, it is possible to provide a relay system that relays the information without requiring a user's expertise and avoiding a high load on a relay destination personal computer or the like.
In addition, the present invention can use the local area network by simultaneously transmitting emergency information or a message based on it to communication devices connected in the local area network without relaying the server device. It is possible to provide a relay system that can transmit emergency information and the like to a simple user. In addition, the present invention allows emergency information to be relayed to communication devices and the like immediately without being affected by Internet traffic by simultaneously transmitting emergency information in a local area network. It becomes.
In addition, the present invention can provide a relay system including a relay device that can broadcast the emergency information or a message based on the emergency information in response to the emergency information at the user's whereabouts or the installation location of the receiving device. .
Furthermore, the present invention can provide a relay system that relays the information in response to emergency information that the user does not assume.

It is a figure which shows the example of the relay system 100 based on one Embodiment of this invention. It is a figure which shows the structure of the relay apparatus 10 based on one Embodiment of this invention. It is a figure which shows the example of the relay system 101 based on one Embodiment of this invention. It is a figure which shows the structure of the relay apparatus 11 based on one Embodiment of this invention. It is a flowchart showing operation | movement of the relay apparatus 10 or the relay apparatus 11 based on one Embodiment of this invention. It is another example of the flowchart showing the operation | movement of the relay apparatus 10 or the relay apparatus 11 based on one Embodiment of this invention. It is a figure which shows the example which comprises the relay system 100 using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention. It is a figure which shows another example which comprises the relay system 100 using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention. It is a figure which shows the example which comprises the relay system 101 using the television receiver which incorporates the relay apparatus 11 based on one Embodiment of this invention. It is a figure which shows the example which the relay system 100 comprised using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention relays the information by a broadcast wave. It is a figure which shows another example which the relay system 100 comprised using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention relays the information by a broadcast wave. It is a figure which shows the example which the relay system 100 which concerns on one Embodiment of an invention receives and relays the broadcast wave containing emergency information with authentication information. It is a figure which shows the example which the relay system 100 which concerns on one Embodiment of this invention receives and relays the broadcast wave containing the emergency information with authentication information and priority. It is a figure which shows the example which the relay system 100 comprised using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention relays the information by a broadcast wave with a positional information. It is a figure which shows the example which the relay system 100 comprised using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention relays the information by a broadcast wave with a positional information and priority. . The figure which shows the further example which the relay system 100 comprised using the television receiver which incorporates the relay apparatus 10 based on one Embodiment of this invention relays the information by a broadcast wave with a positional information and a priority. is there.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. These are merely examples, and the technical scope of the present invention is not limited to these.

[Configuration of Relay System 100]
FIG. 1 is a diagram illustrating an example of a relay system 100 according to an embodiment of the present invention.

  In the example of FIG. 1, the relay system 100 includes a relay device 10, a PC (personal computer) 60-1, and a PC 60-2, which are network-connected to the same broadband router 50 to connect the home network 40. It is composed. The broadband router 50 may be connected to a wide area network 30 such as the Internet as appropriate. The relay apparatus 10 receives the digital broadcast 28 from the broadcast tower 25 received by the antenna 29. The transmission means of the digital broadcast 28 is not limited to the broadcast tower 25 but may be a broadcast satellite or the like.

  Preferably, the digital broadcast 28 is a digital television broadcast using broadcast waves, but is not limited thereto, and may be a digital radio broadcast, a data broadcast, or the like.

  Preferably, the relay apparatus 10 included in the relay system 100 according to the present invention is a Java virtual machine that can use a Java API known in the art. That is, the relay device 10 can receive a digital broadcast from a broadcast station as a Java data broadcast. Therefore, the broadcasting station can transmit a character string for displaying a screen or a program for executing a predetermined process to the relay apparatus as the Java virtual machine according to a predetermined specification. The relay apparatus 10 according to the present invention can perform processing such as extraction of a character string using a predetermined API. Typically, the relay apparatus 10 according to the present invention can store data transmitted by broadcasting over time using a storage medium or the like, and operate by extracting predetermined information or programs from the stored data. Is possible.

  The home network 40 may be a general local area network. Network terminals other than the relay device 10 are not limited to these, and any terminal device or the like may be connected to the broadband router 50 for use. For example, a refrigerator, a facsimile, a home appliance, or the like that has a display unit capable of displaying characters and can function as a network terminal may be connected to the broadband router 50 as a network terminal. The mode of network connection may be wired connection or wireless connection, and may be a power line network connection described later. As the terminal device, an electronic device capable of local area network connection known in the art can be arbitrarily used as a network terminal.

  The broadband router 50 can connect terminal devices and the like in the home network 40 including the relay device 10, the PC 60-1, and the PC 60-2 so as to enable network communication with each other. Furthermore, the broadband router 50 can transfer information on a transmission request from a terminal device to a server device (not shown) connected to the wide area network 30 such as the Internet. On the contrary, the broadband router 50 can block direct access from the wide area network 30 to a terminal device or the like in the home network 40. Furthermore, the broadband router 50 can broadcast information transmitted in the form of broadcast transmission inside the home network 40 to terminal devices or the like inside the home network 40 connected to the same broadband router 50.

  In the example of FIG. 1, the relay device 10 receives the digital broadcast 28 from the broadcast tower 25 received by the antenna 29, and connects predetermined information included in the received digital broadcast 28 to the same broadband router 50. Can be transmitted to the PC 60-1 and PC 60-2. Specifically, the relay device 10 can transmit predetermined information or the like in the form of broadcast transmission. The PC 60-1 and the PC 60-2 connected to the same broadband router 50 can receive the predetermined information transmitted by the relay device 10 as long as the information can be received by broadcast transmission. it can.

  The relay apparatus 10 shown in FIG. 1 may be provided in the form of a single product, or may be provided in the form of a computer part or peripheral device that can be attached and detached via an appropriate interface provided in a personal computer or the like. It may be provided by being incorporated in another device such as a television receiver.

  The PC 60-1 and PC 60-2 shown in the example of FIG. 1 are resident computer programs for displaying information or messages on their respective screens in response to information broadcast by the relay apparatus 10 according to the present invention. May be executed. For example, such a computer program may be automatically read into a memory when an operating system is started for each computer, or may be linked as part of another application such as a browser. The computer program can be provided in any form known in the art, such as a binary format that can be executed alone, binary code that uses an appropriate library, or source code in a script language.

[Configuration of Relay Device 10]
FIG. 2 is a diagram illustrating a configuration of the relay device 10 according to an embodiment of the present invention. In one embodiment, the relay device 10 includes a receiving unit 12 that receives a signal via an antenna 29, a decoding unit 13 that decodes a broadcast from the received signal, and an information extraction unit 14 that extracts predetermined information from the decoded broadcast. An image and sound are sent to an information transmission unit 19 for transmitting information to other terminal devices, a network I / F (interface) 20 for connecting to the home network 40, image display means and sound output means (not shown). Video / audio I / F 21 for outputting the above signals or information, a control unit 24 for controlling the operation of each of these components, and a storage unit 22. Further, the relay device 10 includes a message generation unit 15 that generates a message based on the extracted predetermined information, a position information acquisition unit 16 that acquires position information on the map of the relay device 10, and the extracted predetermined information. A priority generation unit 17 that generates priority may be provided, and an authentication unit 18 that generates authentication information for another terminal device or the like to authenticate the relay device 10 may be provided.

  As the receiving unit 12 and the decoding unit 13, components such as a receiving circuit and a decoding circuit (including a part of an integrated circuit element) provided in a known digital television receiver or the like can be used. The storage unit 22 can be used to store the digital broadcast decoded by the decoding unit 13, but is not limited thereto, and may be used to store information or a program for the operation of the control unit or arbitrary information. Good. For example, the storage unit 22 may be used to store a program or API for the relay apparatus 10 to operate as a Java virtual machine.

  The predetermined information that can be extracted by the information extraction unit 14 is included in any information that can be included in the digital broadcast 28. For example, predetermined information may be extracted from information received as part of a data broadcast included in the digital broadcast 28. Whether the information extraction unit 14 corresponds to the predetermined information to be extracted may be determined as a match or mismatch with a predetermined character string or the like, or may be determined with an identifier associated with the received information. . For example, the broadcast station or the like transmits an identifier indicating emergency information as part of the data broadcast, and the information extraction unit 14 of the relay device 10 according to the present invention associates the identifier with the identifier from the decoded broadcast. Information may be extracted as predetermined information. Such an identifier itself may be handled as information included in a part of the data broadcast.

The message generation unit 15 generates a message based on the predetermined information extracted by the information extraction unit 14. Here, the generation of the message includes selection of a predetermined message.
In one embodiment, the message generation unit 15 generates a message using a template as appropriate based on the predetermined information extracted by the information extraction unit 14. For example, when the predetermined information includes “disaster occurrence” that is a character string that means the occurrence of a disaster, the message generation unit 15 sends a message having readability such as “a disaster has occurred” including the character string. It may be generated. Alternatively, the message generator 15 may use a template that can optionally include a field for other information such as a time stamp that can incorporate the message. You may synthesize a message such as
In another embodiment, when the information extraction unit 14 extracts a predetermined identifier such as a code number representing the occurrence of a disaster from the data broadcast, the message generation unit 15 determines that “a disaster has occurred based on the predetermined identifier. A message having readability such as “has been done” may be generated.
In still another embodiment, the message generator 15 may use the character string as a message when the information extractor 14 extracts a character string “disaster has occurred” from the data broadcast.

  The position information acquisition unit 16 acquires position information on a map that can be used by the control unit 24 of the relay apparatus 10. For example, the user of the relay device 10 may input a postal code associated with the position on the map where the relay device 10 is installed, using a remote controller (not shown) equipped with a numeric keypad as appropriate. The position information acquisition unit 16 acquires information input as the postal code. The control unit 24 of the relay apparatus 10 can use the position on the map associated with the postal code as position information of the relay apparatus 10. The acquired position information may be stored in the storage unit 22. Alternatively, the position information of the relay device 10 is stored using a magnetic medium or a non-volatile memory (not shown) as the storage unit 22, and the control unit 24 uses the position information via the position information acquisition unit 16. Also good.

The priority generation unit 17 generates a priority for the predetermined information extracted by the information extraction unit 14.
In one embodiment, when the predetermined information extracted by the information extraction unit 14 includes information or an identifier representing priority, the priority generation unit 17 uses the information or identifier as the priority.
In another embodiment, the priority generation unit 17 includes the position information on the map included in the predetermined information extracted by the information extraction unit 14 and the position information on the map of the relay device 10 acquired by the position information acquisition unit 16. Are included in the range of the predetermined distance. For example, when the predetermined information is information on a natural disaster and an occurrence location, and the position information of the relay device 10 is included in a place where the influence of the natural disaster is likely to occur, the priority generation unit 17 sets the predetermined information A priority indicating that the information may be important information for the user may be generated. On the contrary, when the position information of the relay device 10 is included in a place where there is no possibility of the influence, the priority generation unit 17 generates a priority indicating that the importance of the predetermined information is low. May be.
In generating the priority based on the position information, the position information on the map specified by the broadcasting station may be used without being limited to the range of the predetermined distance from the place of occurrence as described above. For example, a broadcast station or the like may broadcast an emergency alert including information on a place where there is a possibility of an impact such as a natural disaster, and the priority generation unit 17 may generate a priority for the emergency alert.

The authentication unit 18 is connected to the same broadband router 50 as the relay device 10 regardless of the presence of authentication information for authenticating information including predetermined contents in the digital broadcast decoded by the decoding unit 13. -1 and authentication information for information communication can be generated between terminal devices such as the PC 60-2. That is, the relay device 10 may include a mechanism for authentication with the terminal device, and may transmit information more safely. Specifically, the authentication unit 18 can generate authentication information for authenticating that the information received by the terminal devices such as the PC 60-1 and the PC 60-2 is broadcast by the relay device 10. Any form of authentication may be used as long as it can authenticate information communication from the relay apparatus 10 including the broadband router 50 to the terminal apparatuses such as the PC 60-1 and the PC 60-2. In general, as the form of authentication, a known technique that can authenticate information communication from the relay apparatus 10 to an unspecified terminal apparatus can be arbitrarily used.
For example, the authentication unit 18 may generate authentication information including identification information. Terminal devices such as the PC 60-1 and the PC 60-2 may receive this authentication information and treat only information including the authentication information as information originating from the relay device 10. The unique identification information may be information for identifying the individual relay device 10, information for identifying the individual broadband router 50, or any combination thereof. By operating the authentication unit 18 in this way, even in a situation where misinformation or false information reaches the terminal devices such as the PC 60-1 and the PC 60-2 via the broadband router 50, the PC 60-1 and the PC 60-2. The terminal device such as can handle only information derived from the relay device 10.

  The information transmission unit 19 appropriately receives the information extracted by the information extraction unit 14, the message generated by the message generation unit 15, the priority generated by the priority generation unit 17, and the authentication information generated by the authentication unit 18. Send in combination. An identifier, a field, a separator, or the like for distinguishing each information may be added to this combination.

The network I / F 20 is used to connect the relay apparatus 10 and the broadband router 50 to the network and transmit information from the information transmission unit 19 to the broadband router 50 in a broadcast form. The image / sound I / F 21 is used to output image and sound signals or information included in the broadcast decoded by the decoding unit 13. As these network I / F 20 and video / audio I / F 21, an interface provided in a known digital television receiver or the like can be arbitrarily used. The image / audio I / F 21 may include a circuit component for outputting video or audio, or may be integrated with the circuit component.
Note that the control unit 24 may output the information transmitted by the information transmission unit 19 only from the network I / F 20, or may output a part or all of the information from the image / sound I / F 21 as data broadcast content. .

  The control unit 24 includes the reception unit 12, the decoding unit 13, the information extraction unit 14, the message generation unit 15, the position information acquisition unit 16, the priority generation unit 17, the authentication unit 18, the information transmission unit 19, and the network I / F 20 described above. The operation of each of the image audio I / F 21 and the storage unit 22 is controlled. A specific control mode will be described later with reference to a flowchart. The control unit 24 may be, for example, a unit in which a television receiver is provided with a microprocessor and a storage medium to execute the relay program according to the present invention.

  With this configuration, in the relay system 100 according to the present invention, the relay device 10 is connected to the home network 40, and in response to predetermined information included in the digital broadcast 28, the information or the information is associated therewith. It is possible to simultaneously transmit the received message together with the location information and authentication information of the relay device 10 to other terminal devices connected to the same home network 40.

  The terminal devices other than the relay device 10 need only be connected to the home network 40 and receive broadcast information, and need not be designated as transmission destinations in advance. Furthermore, terminal devices other than the relay device 10 do not need to connect to a transmission source of emergency information or the like by setting based on a predetermined connection procedure. Therefore, the user of the relay system 100 according to the present invention uses the relay system 100 without requiring specialized knowledge such as network setting and without requiring a connection procedure from the terminal device to the transmission source of emergency information or the like. Can do.

[Configuration of Relay System 101]
FIG. 3 is a diagram illustrating an example of the relay system 101 according to an embodiment of the present invention. A description of portions common to FIG. 1 is omitted.

  In the example of FIG. 3, the relay device 11 included in the relay system 101 is connected to the broadband router 50 inside the home network 40. The relay device uses a browser or stream reception software (not shown) or the like to receive a digital broadcast 27 provided by the broadcast station 26 via a wide area network 30 such as the Internet. Is transmitted to the broadcasting station 26. In response to the transmission request, the broadcast station 26 transmits the desired program as the digital broadcast 27 to the relay device 11.

  Typically, the digital broadcast 27 is a digital television broadcast in a stream format via a computer network such as the wide area network 30, but is not limited to this, and may be music distribution, digital radio broadcast, or the like.

  In the example of FIG. 3, the reception form of the digital broadcast 27 is different from using radio waves instead of radio waves. However, as in the example of FIG. 1, the relay device 11 is connected to the inside of the home network 40. It is possible to broadcast predetermined information in a broadcast format to terminal devices such as PC 60-1 and PC 60-2. That is, except for the reception form of the digital broadcast 27, the relay device 11 can perform the same operation as the relay device 10 shown in FIG.

[Configuration of Relay Device 11]
FIG. 4 is a diagram illustrating a configuration of the relay device 11 according to an embodiment of the present invention. A description of portions common to those in FIG. 2 is omitted. The relay apparatus 11 shown in FIG. 4 is different from the relay apparatus 10 shown in FIG. 2 in that the digital broadcast 27 is received via the wide area network 30 such as the Internet. That is, the digital broadcast 27 is sent from the network I / F 20 to the receiving unit 12. The processing related to the received signal is the same as that of the relay apparatus 10 shown in FIG.

  With this configuration, the relay device 11 receives the digital broadcast 27 from the wide area network 30 via the broadband router 50, and when emergency information or the like is extracted, other terminals in the home network 40 Information or a message can be transmitted to a device or the like.

[Flow diagram of relay device operation]
FIG. 5 is a flowchart showing the operation of the relay device 10 or the relay device 11 according to an embodiment of the present invention. In FIG. 5, a process of receiving and relaying emergency information will be described mainly as an operation of the relay device 10. The emergency information is only an example, and the relay device can extract predetermined information as well as the emergency information.

  In step S130, the relay apparatus 10 receives the digital broadcast 28. In the case of the relay device 11, the digital broadcast 27 is received.

  In step S140, the relay device 10 decodes the received signal. Thereby, a broadcast such as a program is decoded from the received signal. Decoded broadcasts can include images, audio, data broadcasts, and the like.

  In step S145, the relay device 10 stores the decoded broadcast. As a storage means, a computer readable / writable magnetic medium or a storage medium such as a nonvolatile memory can be used. For example, the storage unit 22 of the relay device is used. Thereby, the relay apparatus 10 can refer to the data accumulated in the storage unit 22 in order to extract predetermined information. In the following stages, it is shown that predetermined information is processed from the decoded broadcast including the accumulated data, but the means for storing the predetermined information is not limited to the storage unit 22 of the relay device 10, and either These components may be provided with a buffer memory or the like and used for storing predetermined information.

  In step S150, the relay apparatus 10 determines whether or not the decoded broadcast includes predetermined information such as emergency information. If the result of the determination is true, the process proceeds to step S160, and if it is false, the process returns to step S130. That is, in a situation where emergency information is not included in the decoded broadcast, the relay device 10 performs steps S130 to S150 to repeat signal reception and broadcast decoding. The implementation period from step S130 to step S150 may be any, and the relay apparatus 10 may repeat these steps at regular time intervals, or may repeat these steps according to the amount of data included in the decoded broadcast. .

  In step S160, the relay device 10 sends the decrypted information to the information transmission unit 19. That is, emergency information or the like is sent to the information transmission unit 19. Here, sending the information to the information transmission unit 19 indicates storing the information as a part of the transmission queue using the storage unit 22, for example. The form of the decrypted information may be a predefined code number or the like, or may be a readable character string or the like. The decrypted information may include authentication information for authenticating predetermined information such as emergency broadcast, information indicating the priority of the predetermined information, and the like.

  In step S170, the relay device 10 sends a message related to the decrypted information to the information transmission unit 19 as appropriate. The related message may be a phrase or the like that can be added to the character string or the like included in the decoded information as appropriate in order to improve readability as appropriate, and can be a template that can incorporate a code number or character string or the like included in the decoded information Etc. Alternatively, when the decrypted information already has sufficient readability for the user, the relay apparatus 10 has already transmitted the decrypted information to the information transmission unit 19 in step S160 in the previous stage, and thus the operation of step S170 is omitted. May be.

In step S180, the relay device 10 sends additional information to the information transmission unit 19 as appropriate. This additional information may be information obtained by combining information decoded by the relay device 10 and information unique to the relay device 10. Alternatively, the operation in step S180 may be omitted as in step S170.
In one embodiment, the relay device according to the present invention may generate authentication information using the authentication unit 18 and send the generated authentication information to the information transmission unit 19 as additional information.

  In step S190, the relay device 10 broadcasts the contents of the information transmission unit 19 via the network I / F 20. Thereby, the emergency information or the like sent to the information transmission unit 19 in step S160 is broadcast, and further, the message related to the emergency information or the like sent to the information transmission unit 19 in step S170 or the information transmission unit 19 in step S180. The sent additional information is broadcast as appropriate.

In one embodiment, the relay apparatus 10 broadcasts the decoded information sent to the information transmission unit 19 in step S160 from the information transmission unit 19. Steps S170 and S180 are omitted. For example, the decrypted information includes emergency information, authentication information, and priority.
In another embodiment, in addition to the decoded information sent to the information transmission unit 19 in step S160, the relay device 10 transmits the related message sent to the information transmission unit 19 in step S170 from the information transmission unit 19. Broadcast.

  FIG. 6 is another example of a flowchart showing the operation of the relay device 10 or the relay device 11 according to an embodiment of the present invention. As in FIG. 5, the steps are mainly described as the operation of the relay device 10. In the following description, the operation of the relay device 10 provided with the position information acquisition unit 16, the priority generation unit 17, and the authentication unit 18 will be described, but even if any or all of these three components are omitted, The relay device 10 included in the relay system 100 according to the present invention can be configured.

  In step S <b> 110, the relay device 10 appropriately acquires position information using the position information acquisition unit 16. Specifically, position information on a map where the relay device 10 is installed is acquired. The acquired position information may be input in advance in the form of a zip code or the like by a user using a remote controller having a numeric keypad as appropriate, or may be acquired from a medium or the like in which position information is stored in advance. The acquired position information may be stored using the storage unit 22 or the like as appropriate.

  In step S120, the relay device 10 generates authentication information. Specifically, the authentication unit 18 is used to generate information for a communication device or the like connected to the home network 40 to authenticate the relay device 10. The generated authentication information is sent to the information transmitter 19. The authentication information may be information that can authenticate one-way information communication from the relay device 10 to the communication device. For example, identification information unique to the relay device 10 may be provided, and this identification information may be transmitted to the communication device as authentication information.

  The operations from Step S130 to Step S170 and Step S190 are the same as the operations of the relay device 10 shown in FIG.

In step S185, the relay apparatus 10 sends the additional information to the information transmission unit 19 as appropriate, similarly to the stages shown in FIG.
In one embodiment, the additional information includes authentication information that can be generated by the authentication unit 18 described above.
In another embodiment, the relay apparatus according to the present invention may generate a priority using the priority generation unit 17 and send the generated priority to the information transmission unit 19 as additional information. This priority can be generated based on the predetermined information for which the determination result in step S150 is true and the position information on the map of the relay device 10. For example, when predetermined information such as emergency information is accompanied by information such as a place or route of transportation, and the position information on the map of the relay device 10 is included in a place where the influence of the emergency information is expected, the relay device 10 can generate high priority information using the priority generation unit 17. On the contrary, when the influence of the emergency information is low or can be ignored, the relay device 10 can generate information indicating a low priority by using the priority generation unit 17. Therefore, by performing Step S110 and Step S185 shown in FIG. 6, the relay apparatus 10 can prepare information regarding the magnitude of the influence of emergency information or the like at the place where the relay apparatus 10 is installed.

  In step S190, the relay apparatus 10 broadcasts the content of the information transmission unit 19 via the network I / F 20 as in the example illustrated in FIG. Thereby, the emergency information or the like sent to the information transmission unit 19 in step S160 is broadcast, and further, the message related to the emergency information or the like sent to the information transmission unit 19 in step S170 or the information transmission unit 19 in step S180. The sent additional information is broadcast as appropriate.

(Example 1: Example in which a relay device is built in a television receiver)
FIG. 7 is a diagram illustrating an example in which the relay system 100 is configured using a television receiver including the relay device 10 according to an embodiment of the present invention. A relay system 100 according to the embodiment shown in FIG. 7 includes a television receiver 80, a broadband router 50, and a terminal device 70 incorporating the relay device 10 according to the present invention, and a digital broadcast 28 from the broadcast tower 25 is transmitted by an antenna 29. Receive. Preferably, the terminal device 70 is a personal computer or the like on which a predetermined program capable of receiving information transmitted by the relay device 10 according to the present invention in the form of broadcast operates.

  With such a configuration, the television receiver 80 incorporating the relay device 10 according to the present invention is a terminal connected to the same broadband router 50 in response to emergency information included in the digital broadcast 28. The emergency information can be relayed and transmitted to the device 70 simultaneously. The user only needs to perform cable connection or the like so that the television receiver 80 and the terminal device 70 are connected to the broadband router 50 via a network, and device settings for network connection of the respective relay devices 10 or terminal devices 70 Therefore, it is not necessary to perform a procedure for setting the terminal device 70 as a transmission destination in advance, and thus the user of the television receiver 80 incorporating the relay device 10 according to the present invention does not need special expertise. Relay of emergency information etc. can be used.

  In addition, the terminal device 70 included in the relay system 100 according to the present invention does not need to be set based on a predetermined connection procedure for receiving emergency information or the like, and is simply transmitted in broadcast form. Just wait. Therefore, the terminal device 70 does not need to be in a high load state such as stream reception.

  FIG. 8 is a diagram illustrating another example in which the relay system 100 is configured using a television receiver including the relay device 10 according to an embodiment of the present invention. The relay system 100 shown in FIG. 8 includes a television receiver 80, a broadband router 50, a terminal device 70, a power line connection adapter 210, an indoor power wiring 200, and an electronic device 220 with a display unit that incorporate the relay device 10 according to the present invention. including.

  The difference from the relay system 100 shown in FIG. 7 described above is that a network connection via the indoor power wiring 200 is added. The display-equipped electronic devices 220 can receive or receive emergency information transmitted via the indoor power wiring 200 by independently connecting or incorporating the power line connection adapter 210. For example, the display-equipped electronic device 220-1 having the form of a telephone that can be installed in the vicinity of office equipment, stationery, or the like uses the display unit to “evacuate under the desk” when an earthquake disaster occurs. May be displayed. In addition, for example, the display-equipped electronic device 220-2 having the form of a cooking utensil that can be installed in a kitchen or the like uses the display unit to suggest "confirm the source of fire" when an earthquake disaster occurs. A message may be displayed. Without being limited thereto, the emergency information displayed on the terminal device 70 or the display-equipped electronic device 220 or a message related to the emergency information may be arbitrarily set.

  FIG. 9 is a diagram illustrating an example in which the relay system 101 is configured using the television receiver 81 including the relay device 11 according to an embodiment of the present invention. A relay system 101 shown in FIG. 9 includes a television receiver 81 incorporating the relay device 11 according to the present invention, a broadband router 50, and a terminal device 70, and is digitally transmitted from the broadcasting station 26 via a wide area network 30 such as the Internet. Broadcast 27 is received.

  For example, the terminal device 70 may be a personal computer installed in an internet cafe or the like. These terminal devices 70 may be connected to the same broadband router 50 as the relay device 11 according to the present invention and can receive information broadcast from the relay device 11, and the number thereof is not limited.

  In this way, in the relay system 101 according to the present invention, it is not necessary to designate each terminal device 70, and in response to the emergency information included in the digital broadcast 27, each terminal device 70 can receive emergency information or It is possible to display a message related to this. Further, the number of terminal devices 70 can be arbitrarily increased or decreased. Therefore, even when the device of the terminal device 70 is changed, it is not necessary to specify the terminal device 70 for displaying emergency information or the like, so that an increase in maintenance cost can be prevented.

(Example 2: Example of relaying information)
FIG. 10 is a diagram illustrating an example in which the relay system 100 configured using the television receiver 80 including the relay device 10 according to an embodiment of the present invention relays information by broadcast waves. The components of the relay system 100 are the same as those shown in FIG. In the following embodiment, an example of relaying information on the occurrence of an earthquake is shown. However, the present invention is not limited to this example. The relay system 100 including the relay device 10 according to the present invention is the same in the situation where the relay device 10 according to the present invention is broadcasted as a digital television broadcast or data broadcast, etc. It is possible to operate.

  FIG. 10 shows a situation in which the television receiver 80 incorporating the relay device 10 according to the present invention receives the digital broadcast 28 from the broadcast tower 25 by the antenna 29. Further, the digital broadcast 28 includes information 310 that an earthquake has occurred. In response to receiving such information 310, the relay device 10 according to the present invention transmits information 320 indicating the occurrence of an earthquake in the form of a broadcast. That is, the information 320 is transmitted to the broadband router 50, and the information 320 is simultaneously transmitted to all the terminal devices 70 connected via the broadband router 50. Accordingly, all the terminal devices 70 can receive this information 320.

  In the terminal device 70, a display unit included in each of the terminal devices 70-1 and 70-2 responds to reception of the information 320 by starting a computer program that waits for the simultaneously transmitted information 320. Information 330-1 and 330-2 such as “It is an earthquake” can be displayed. A suitable computer program is a program provided in the form of a gadget (for example, a program referred to as a known “NHK gadget”) that is resident in a memory in conjunction with the activation of the operating system of the personal computer. . As such a gadget, a program that waits for the information 320 operates, so that the terminal device 70 can wait for reception of predetermined information.

  Thus, the terminal system 70 relays the information 310 included in the digital broadcast 28 by the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention. Can be displayed.

  FIG. 11 is a diagram illustrating another example in which the relay system 100 configured using the television receiver 80 including the relay device 10 according to an embodiment of the present invention relays information by broadcast waves. The components of the relay system 100 are the same as those shown in FIG.

  In FIG. 11, the television receiver 80 incorporating the relay device 10 according to the embodiment of the present invention responds to the reception of the information 310 similar to the example shown in FIG. The message 321 “occurred” is transmitted in the form of a broadcast. In other words, the relay device 10 can generate a message 321 using a phrase included in the received information 310 and transmit it in a broadcast form. The form of the message 321 to be generated is not limited to this, and may include other information such as a time stamp when the information 310 is received. The message 321 is simultaneously transmitted to all the terminal devices 70 via the broadband router 50 as described above.

  In the terminal device 70, similarly to the example shown in FIG. 10, in response to the reception of the message 321, the messages 332-1 and 332-2 are sent to the display units included in the terminal devices 70-1 and 70-2. It is possible to display.

  Thus, the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention generates the message 321 based on the information 310 included in the digital broadcast 28. The generated message can be displayed on the terminal device 70.

  FIG. 12 is a diagram illustrating an example in which the relay system 100 according to an embodiment of the present invention receives and relays a broadcast wave including emergency information with authentication information. The components of the relay system 100 are the same as those shown in FIG.

  In FIG. 12, in response to receiving information 312 including emergency information and authentication information, the television receiver 80 incorporating the relay device 10 according to an embodiment of the present invention displays the emergency information and authentication information. Information 322 included is transmitted in the form of a broadcast. The information 322 is simultaneously transmitted to all the terminal devices 70 via the broadband router 50 as described above. The terminal device 70 receives the simultaneously transmitted information 322 as in the example shown in FIG. That is, emergency information accompanied by authentication information is received.

  Thus, the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention receives the information 312 including the emergency information and the authentication information included in the digital broadcast 28. It is possible to relay and broadcast within the same local area network.

  FIG. 13 is a diagram illustrating an example in which the relay system 100 according to an embodiment of the present invention receives and relays a broadcast wave including emergency information with authentication information and priority. The components of the relay system 100 are the same as those shown in FIG.

  In FIG. 13, the television receiver 80 including the relay device 10 according to the embodiment of the present invention responds to receiving the emergency information, the authentication information, and the information 313 including the priority in response to the emergency information, Information 323 including authentication information and priority is transmitted in broadcast form. The information 323 is simultaneously transmitted to all the terminal devices 70 via the broadband router 50 as described above. The terminal device 70 receives the simultaneously transmitted information 323 as in the example shown in FIG. That is, emergency information with authentication information and priority is received. The terminal device 70 can display the information 323 using the priority as appropriate. For example, when information 323 with high priority is received, the information 323 may be displayed in combination with a conspicuous color scheme, additional display for alerting, or decoration in order to alert the user.

  Thus, the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention includes emergency information, authentication information, and priority included in the digital broadcast 28. Information 313 can be relayed and broadcast within the same local area network.

(Example 3: Example using location information)
FIG. 14 is a diagram illustrating an example in which a relay system 100 configured using a television receiver including the relay device 10 according to an embodiment of the present invention relays broadcast wave information with position information. is there. The components of the relay system 100 are the same as those shown in FIG.

  In FIG. 14, the television receiver 80 incorporating the relay device 10 according to the embodiment of the present invention responds to receiving the information 314 indicating the location of the epicenter, and transmits the information 314 to the relay device 10. Is transmitted in the form of a broadcast as information 324 together with the position information of the place where is installed. That is, the information 324 includes information 314 representing the location of the epicenter and position information of the location where the relay device 10 is installed. The information 324 is simultaneously transmitted to all the terminal devices 70 via the broadband router 50 as described above.

  In the terminal device 70, a display unit included in each of the terminal devices 70-1 and 70-2 responds to reception of the information 324 by starting a computer program that waits for the simultaneously transmitted information 324. In addition, the display based on the information 312 representing the location of the epicenter and the display based on the location information of the location where the relay device 10 is installed can be implemented. For example, a plan view or the like representing a place on the map of the epicenter and the relay device 10 can be displayed on the display unit included in the terminal devices 70-1 and 70-2.

  As described above, the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention includes the epicenter information 312 and the relay device 10 included in the digital broadcast 28. It is possible to generate information 324 including the location information of the place where it is installed and transmit it simultaneously to the terminal device 70.

  In the embodiment shown in FIG. 14, even if the digital broadcast 28 is a wide-area service such as national broadcasting including satellite broadcasting, the relay device 10 acquired by the relay device 10 according to the present invention using the position information acquisition unit 16. By using the position information on the map representing the installation location, information having a relationship with the installation location can be used. Therefore, the user of the relay device 10 according to the present invention can use information related to the place where the relay device 10 is installed.

  FIG. 15 illustrates an example in which a relay system 100 configured using a television receiver including the relay device 10 according to an embodiment of the present invention relays broadcast wave information with position information and priority. FIG.

(Example 4: Example of using priority)
In FIG. 15, the television receiver 80 including the relay device 10 according to the embodiment of the present invention receives the information 314 indicating the location of the epicenter as in the example shown using FIG. 14 described above. In response, the information 314, the position information of the location where the relay device 10 is installed, and the priority information generated based on the distance between the epicenter and the location of the relay device are broadcast as information 325. Send in form. The information 325 is simultaneously transmitted to all the terminal devices 70 via the broadband router 50 as described above.

  In one embodiment, the generated priority information is the distance between the location represented by the broadcast information, such as the distance between the epicenter and the location of the relay device, and the location information of the location where the relay device 10 is installed. Based on this, it can be defined so that the shorter the distance, the higher the priority, and the longer the distance, the lower the priority. This definition may be in the form of any function with distance as a variable. Further, the variable used for generating the priority is not limited to the distance, and for example, a variable other than the distance such as the seismic intensity of the earthquake may be additionally included.

  The terminal device 70 waits for the simultaneously transmitted information 325 and activates a computer program for selecting a predetermined message according to the received priority level, thereby responding to the reception of the information 325 and receiving each terminal. Additional information 336 based on the priority is added and displayed on the display units included in the devices 70-1 and 70-2. That is, in addition to the above-described information 330-1 and 330-2, messages 321-1 and 322-2, or a plan view showing the location of the epicenter and the relay device 10 on the map, additional information based on priority 336 may be displayed. The additional information 336 based on priority indicates that, for example, when a high priority is generated when the installation location of the terminal device 70-2 is a user's study or the like, the user evacuates under the desk. You may display the message which suggests, or the message which suggests paying attention to the fallen object around us. Further, for example, when a low priority is generated contrary to the above, a message suggesting the user's action may be left blank. Without being limited thereto, the priority generated by the relay device 10 according to the present invention can be used to appropriately select the message 321 displayed by the terminal device 70.

  In this way, the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention includes the epicenter information 314 included in the digital broadcast 28, and the relay device 10. It is possible to generate information 325 including position information of the installed location and priority information generated based on the distance between the epicenter and the location of the relay device, and transmit the information 325 to the terminal device 70 simultaneously.

  In the embodiment shown in FIG. 15, even if the digital broadcast 28 is a wide area service such as a national broadcast including a satellite broadcast, the relay device 10 acquired by the relay device 10 according to the present invention using the position information acquisition unit 16. By using the position information on the map representing the installation location and the priority generated by the priority generation unit 17, information having relevance to the installation location can be used in combination with the priority. Therefore, the user of the relay device 10 according to the present invention can use information related to the place where the relay device 10 is installed together with the priority of the information.

  FIG. 16 shows another example in which a relay system 100 configured using a television receiver including the relay device 10 according to an embodiment of the present invention relays information by broadcast waves with position information and priority. It is a figure which shows an example.

  In FIG. 16, the television receiver 80 incorporating the relay device 10 according to an embodiment of the present invention responds to the reception of the information 314 indicating the location of the epicenter, and the information 314 and the relay device 10 Information on the position of the installed place and priority information generated based on the distance between the epicenter and the position of the relay device are transmitted as information 328 in the form of a broadcast. The information 328 is simultaneously transmitted to all the terminal devices 70 via the broadband router 50 as described above. In the example of FIG. 16, the broadband router 50 is connected to the power line connection adapter 210 and can be connected to a network including the indoor power wiring 200. Therefore, the information 328 is transmitted simultaneously via the indoor power wiring 200. Thus, the information 328 broadcast from the relay device 10 is received by the terminal device 70 connected to the broadband router 50 and the information home appliance 230 connected to the network via the indoor power wiring 200. The

  The reception of the information 328 in the terminal device 70 is the same as in the embodiment shown using FIG. For example, when the terminal device 70 is installed in the study, the terminal device 70 displays a message that suggests the user's action such as evacuation under the desk according to the map including the location of the epicenter and the relay device 10 and the priority. It is possible to display.

  The information home appliance 230 waits for the simultaneously transmitted information 328 and activates a program for selecting a predetermined message according to the received priority, thereby responding to reception of the information 328. The additional information 338 based on the priority is displayed on the display unit included in. For example, when the location where the information home appliance 230 is installed is a kitchen, etc., and a high priority is received together with earthquake information, a message or the like suggesting that the user calms down and confirms the source of the fire is displayed. Also good.

  As described above, the relay system 100 configured using the television receiver 80 including the relay device 10 according to the embodiment of the present invention includes the epicenter information 312 included in the digital broadcast 28 and the relay device 10. Generates information 326 including the location information of the installed location and the priority information generated based on the distance between the epicenter and the location of the relay device, and transmits to the terminal device 70, the information home appliance 230, etc. It becomes possible.

  Although the present invention has been described based on the embodiment, the present invention is not limited to the above-described embodiment. For example, the relay device 10 or the relay device 11 according to the present invention may be provided in the form of a single set-top box, may be incorporated in a composite device including a digital TV tuner or the like, and receives a digital broadcast or the like. It may be provided in the form of possible personal computer parts. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments or examples of the present invention. Is not to be done.

DESCRIPTION OF SYMBOLS 10, 11 Relay apparatus 12 Receiving part 13 Decoding part 14 Information extraction part 15 Message generation part 16 Location information acquisition part 17 Priority generation part 18 Authentication part 19 Information transmission part 20 Network I / F
21 Image / Audio I / F
22 Storage Unit 24 Control Unit 25 Broadcast Tower 26 Broadcast Station 27, 28 Digital Broadcasting 29 Antenna 30 Wide Area Network 40 Home Network 50 Broadband Router 60 PC
70 Terminal device 80, 81 TV receiver 100, 101 Relay system 200 Indoor power wiring 210 Power line connection adapter 220 Electronic device with display 230 Information appliances 310, 312, 313, 314, 320, 321, 322, 323, 324, 325, 328 Information 322, 332, 336, 338 Message

Claims (8)

A relay system that relays information broadcast by digital broadcasting,
The relay system includes a communication device that includes a relay device and at least one information display unit and is connected to be receivable in the same local area network to which the relay device is connected,
The relay device is
A receiver for receiving the digital broadcast;
A decoding unit for decoding the received digital broadcast;
A storage unit for storing the decoded digital broadcast;
An information extraction unit for extracting information including predetermined content from the stored digital broadcast;
The relay system comprising: an information transmission unit that broadcasts the extracted information in the same local area network.   The relay system according to claim 1, further comprising a message generation unit that generates a message based on the extracted information, and broadcasts the generated message from the information transmission unit. .   The relay system according to claim 1, wherein the communication device displays the information transmitted from the information transmission unit on the information display unit.   The relay device further includes an authentication unit that generates authentication information for authenticating information including the predetermined content by the communication device, and broadcasts the generated authentication information from the information transmission unit. The relay system according to claim 1.   The relay system according to claim 1, further comprising a position information acquisition unit that acquires position information of the relay apparatus.   Further, the relay device includes a priority generation unit that generates a priority based on the extracted information and the position information, and the generated priority is the information and the position information together with the information. The relay system according to claim 5, wherein the relay system broadcasts from a transmission unit. A relay device that relays information broadcast by digital broadcasting,
The relay device is connected to a communication device provided with at least one information display unit so as to be receivable in the same local area network to which the relay device is connected,
A receiver for receiving the digital broadcast;
A decoding unit for decoding the received digital broadcast;
A storage unit for storing the decoded digital broadcast;
An information extraction unit for extracting information including predetermined content from the stored digital broadcast;
The relay apparatus comprising: an information transmission unit that broadcasts the extracted information in the same local area network. A relay program that relays information broadcast by digital broadcasting,
The relay program is in the same local area network to which a communication device including a relay device and at least one information display unit is connected.
Receiving means for receiving the digital broadcast;
Decoding means for decoding the received digital broadcast;
Storage means for storing the decoded digital broadcast;
Information extracting means for extracting information including predetermined contents from the stored digital broadcast;
A relay program that causes a computer comprising information transmission means for broadcasting the extracted information to the same local area network to function as the relay device.

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