JP6377946B2 - Receiver - Google Patents

Description

  The present invention relates to a receiving apparatus that receives IP data superimposed on a broadcast wave signal.

  IPDC (Internet Protocol Data Cast) has attracted attention as a new service for distributing content. IPDC is a technique for delivering content all at once by superimposing data (Data) in the format of an IP (Internet Protocol) packet on a digital broadcast wave and transmitting (Cast) (see, for example, Patent Document 1). .

  In this regard, the receiving device that receives the digital broadcast wave performs control such as output display of content based on the data of the IP packet.

JP 2012-204946 A

  On the other hand, the receiving device in the above describes the case of executing one process such as output display of content. However, when a plurality of control target devices are connected, it is desirable to control each of them. .

  SUMMARY An advantage of some aspects of the invention is to provide a receiving apparatus capable of controlling a plurality of control target apparatuses.

  A receiving device according to an aspect of the present invention is a receiving device connected to a plurality of external devices, the receiving unit receiving a broadcast wave signal, and IP data superimposed on the broadcast wave signal received by the receiving unit. An IP data acquisition unit to be acquired, an extraction unit for extracting a plurality of control commands included in the IP data acquired by the IP data acquisition unit, and a plurality of control commands extracted by the extraction unit for a plurality of external devices And an output unit for instructing the operation.

  Preferably, the plurality of control commands include a start command for instructing start and a stop command for instructing stop, and the output unit is configured to start a predetermined external device among the plurality of external devices. And instruct the remaining external devices to stop.

  Preferably, the plurality of external devices are classified into a first group provided on a predetermined route and a second group other than the first group, and the output unit is assigned to the external device belonging to the first group. And instructing the external device belonging to the second group to stop.

  Preferably, the plurality of external devices are classified into a plurality of groups, the plurality of control commands are provided corresponding to the plurality of groups, respectively, and the output unit performs control corresponding to the external devices belonging to each group. Instruct the operation according to the command.

  Based on the above, the receiving device can control a plurality of control target devices.

It is a figure showing composition of digital transmission system 1 based on an embodiment. It is a functional block diagram of the transmitter 10 and the receiver 100 in the digital transmission system 1 based on embodiment. It is a figure explaining the control data extracted from IP packet data based on this embodiment. It is a flowchart explaining extraction of the data of the receiver 100 based on this embodiment. It is a figure explaining the control object device based on modification 1 of this embodiment. It is a figure explaining an example of the control data based on the modification 1 of this embodiment. It is a figure explaining controlled object device 200Q based on modification 2 of this embodiment. It is a functional block diagram of the transmitter 10 and the receiver 100 # in the digital transmission system 1 # based on the modification 3 of embodiment. It is a figure explaining an example of the control data based on the modification 3 of this embodiment. It is a figure which shows the structure of 1 A of digital transmission systems based on the modification 4 of this embodiment.

Hereinafter, the present embodiment will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration of a digital transmission system 1 based on the embodiment.

  As shown in FIG. 1, the digital transmission system 1 includes a transmission device 10 for transmitting a digital broadcast wave signal, a power control server 30 connected to the transmission device 10, and reception for receiving a digital broadcast wave signal. The apparatus 100 includes control target devices 200 </ b> A to 200 </ b> C that are connected to the receiving device 100 and can be controlled by the receiving device 100.

  The transmission device 10 is installed in a broadcasting station, for example. The receiving device 100 is provided in a tenant or home. In this example, a configuration in which one receiving device 100 is provided has been described. However, the configuration is not limited to one, and a configuration in which a plurality of receiving devices 100 are provided is also possible. Further, the three control target devices 200A to 200C will be described. However, the configuration is not limited to three, and any configuration may be used as long as a plurality of control target devices are provided. Further, the receiving device 100 and each of the control target devices 200A to 200C may be connected by wire or may be connected wirelessly. Moreover, it is good also as a structure including the relay apparatus which relays data between the receiver 100 and each control object apparatus.

  It is assumed that the power control server 30 is provided so as to be communicably connected to the transmission device 10 via a network. As an example, the power control server 30 outputs control data for controlling a plurality of control target devices to the transmission device 10 when a disaster occurs.

  The transmission device 10 is provided with a transmission antenna 12 for transmitting a digital broadcast wave signal.

  The receiving apparatus 100 is provided with a receiving antenna 102 for receiving a digital broadcast wave signal.

  The transmission device 10 outputs broadcast data and control data from the power control server 30 from the transmission antenna 12 as a digital broadcast wave signal. The broadcast data is generated by a broadcast data generation device (not shown) including data such as video and audio in the broadcast station. As an example, the power control server 30 stores control data (information) required for controlling various devices to be controlled when a disaster occurs.

  The receiving device 100 receives the digital broadcast wave signal output from the transmitting antenna 12, and outputs the received content to the control target devices 200A to 200C.

  FIG. 2 is a functional block diagram of the transmission device 10 and the reception device 100 in the digital transmission system 1 based on the embodiment.

  As illustrated in FIG. 2, the transmission device 10 includes a control data creation unit 14, a TS conversion unit 15, a mixing unit 16, and an OFDM modulation unit 18.

  The control data creation unit 14 creates control data from the power control server 30 as IP (Internet Protocol) packet data according to a predetermined protocol.

  The TS conversion unit 15 converts the IP packet data created by the control data creation unit 14 into a TS signal having the same format as the ISDB-T broadcast data.

  The mixing unit 16 mixes and outputs the IP packet data output from the control data creating unit 14 and the broadcast data.

  The OFDM modulation unit 18 digitally modulates the mixed data and outputs it from the transmission antenna 12.

  For example, MPEG (Moving Picture Expert Group) 2 TS (transport stream) is used as a broadcast protocol. The TS is multiplexed by an OFDM (Orthogonal Frequency Division Multiplexing) modulation unit 18 and digitally modulated and transmitted as a digital broadcast wave signal. Since the structure of the TS signal and multiplexing and digital modulation by OFDM are well known, detailed description thereof will not be repeated here.

  Along with broadcast data, data of an arbitrary application or content (for example, image, sound, or text) is transmitted as IP packet data. Thereby, so-called IPDC (IP Data Cast) is performed.

  The receiving apparatus 100 includes an OFDM demodulator 104, a broadcast data reproduction unit 106, a data extraction unit 107, a TS / IP conversion unit 108, and an output unit 109.

The output unit 109 is connected to each of the control target devices 200A to 200C.
As an example, a case where the control target device 200A is a display device, the control target device 200B is an alarm device, and the control target device 200C is an electric cooking appliance will be described.

  The OFDM demodulator 104 receives a digital broadcast wave signal via the receiving antenna 102 and acquires a digitally demodulated TS signal.

  The broadcast data reproduction unit 106 reproduces broadcast data according to the digitally demodulated TS signal and outputs the broadcast data to the control target device (display device) 200A. As a result, it is possible to view the broadcast based on the broadcast data in the control target device (display device) 200A.

  The TS / IP converter 108 converts the digitally demodulated TS signal into IP packet data.

  The data extraction unit 107 extracts control data output from the power control server 30 from the converted IP packet data.

  The output unit 109 controls each of the control target devices 200 </ b> A to 200 </ b> C according to the control data extracted by the data extraction unit 107.

  FIG. 3 is a diagram illustrating control data extracted from IP packet data based on the present embodiment.

  FIG. 3 shows a case where the control target device and the control command are associated with each other.

Specifically, the type of the control target device and the control command are associated with each other.
In this example, the display device is associated with the control command X0. The alarm device is associated with the control command X0. The electric cooker is associated with the control command X1.

  In this example, as an example, the control command X0 indicates an activation command. The control command X1 indicates a stop command.

  The control data is assumed to be data stored in the power control server 30 as an example. The output unit 109 of the receiving device 100 activates the control target device (display device) 200A according to the control command X0 (activation) based on the control data extracted from the IP packet data. Further, the control target device (alarm device) 200B is started according to the control command X0 (startup). Further, the control target device (electric cooking utensil) 200C is stopped according to the control command X1 (stop).

  Thereby, the control target device (display device) 200A displays the broadcast data reproduced by the broadcast data reproducing unit 106 in response to the activation command. The designated broadcast data may be displayed by switching to normal broadcast data display. Thereby, for example, it is possible to prompt the user in the house to view the broadcast data, to promptly recognize the occurrence of the disaster and take an appropriate action. In this example, the case where the control target device (display device) 200A is activated by the activation command has been described. However, it is not always necessary to activate the device to be controlled (display device) 200A.

  The control target device (alarm device) 200B activates the alarm device according to the activation command. Thereby, for example, it is possible to prompt the user in the house to recognize the occurrence of the disaster at an early stage and take an appropriate response.

  The control target device (electric cooking utensil) 200C stops the supply of electricity in response to a stop command. Thereby, it is possible to stop an electric cooking appliance safely at the time of disaster occurrence.

  By the above, according to the control data from the power control server 30, as an example, it is possible to control a plurality of control target devices at the same time when a disaster occurs.

  Since broadcast waves are used, it can be distributed to a plurality of receiving devices all at once, which is particularly effective when urgency is high. It is possible to control power management of a plurality of control target devices all at once according to a situation (for example, a situation such as a disaster occurrence).

  Further, a plurality of control target devices connected to the receiving device can be controlled in accordance with the type of each control target device, and can be operated according to the purpose of use of each device, which is highly useful.

  FIG. 4 is a flowchart for explaining data extraction of the receiving apparatus 100 based on the present embodiment.

  As shown in FIG. 4, it is determined whether IP packet data has been received (step S1). Specifically, the TS / IP conversion unit 108 can make a determination according to whether the digitally demodulated TS signal includes IP packet data.

  If it is determined in step S1 that IP packet data has been received (YES in step S1), data is extracted (step S2). Specifically, the data extraction unit 107 extracts control data from the received IP packet data.

  Next, an instruction according to the control command is output (step S3). Specifically, the output unit 109 outputs an instruction corresponding to the corresponding control command to each control target device connected according to the control data.

Then, the process ends (END).
In this example, the case where the data described in FIG. 3 is stored in the power control server 30 has been described as an example. However, the present invention is not limited to this, and the configuration is incorporated in a part of broadcast data. Alternatively, it may be acquired from another server.

  Moreover, although the case where the control target devices connected to the receiving device 100 are provided separately has been described, the present invention is not limited to this, and it is naturally possible to adopt a configuration in which both are included in an integrated device.

  Moreover, in this example, although three types of control object apparatus was demonstrated in FIG. 3, it is not restricted to this in particular, It can apply similarly to another electric equipment. Moreover, you may make it identify a control object apparatus with an identification number. Moreover, although the case where the start command and the stop command are defined as the control commands has been described, the control commands are not particularly limited to these, and the control commands can be controlled by the control commands according to the purpose of each control target device.

  In this example, a case where a disaster occurs is described as an example of a situation where a plurality of control target devices are controlled at the same time. However, the present invention is not limited to the case where a disaster occurs. .

(Modification 1)
In the above description, a case has been described in which control target devices of different types are controlled simultaneously for a plurality of control target devices.

  In the first modification, a case will be described in which control target devices are simultaneously controlled when a plurality of control target devices are of the same type.

FIG. 5 is a diagram illustrating a control target device based on the first modification of the present embodiment.
Referring to FIG. 5, here, a case where a plurality of control target devices (streetlights) 200P are arranged on a road is shown. The plurality of control target devices (streetlights) 200P are grouped for each arranged area. For example, in this example, a case where the arranged areas are grouped as area codes A0 to A3 is shown.

  The receiving device 100 is connected to a plurality of control target devices (streetlights) 200P by wire or wireless, and can be controlled for each.

FIG. 6 is a diagram illustrating an example of control data based on the first modification of the present embodiment.
Referring to FIG. 6, here, a case where a control command and an area code are associated as control data from power control server 30 is shown.

  The area code is a code that specifies a place where a plurality of control target devices are arranged.

  According to the control data, the output unit 109 controls a plurality of control target devices (streetlights) 200P.

  Specifically, the control target device (streetlight) 200P belonging to the area code A0 is lit. Further, the control target device (streetlight) 200P belonging to the area code A1 is turned off. The control target device (streetlight) 200P belonging to the area code A2 is lit. The control target device (streetlight) 200P belonging to the area code A3 is turned off. By this control, the control target device (streetlight) 200P of the area code corresponding to the evacuation route (route) to the evacuation site designated in advance is turned on, and the other control target devices 200P are turned off.

  Thereby, it is possible to easily perform guidance by the evacuation route to the evacuation site according to the control target device (streetlight) 200P that is turned on when a disaster occurs.

  In addition, in this example, although the example which guides to an evacuation route using the control object apparatus (streetlight) 200P arrange | positioned on the road was demonstrated, for example, when evacuating in the event of a disaster in a tenant etc. Similarly, it is possible to easily perform guidance by the evacuation route by controlling the light.

  In addition, in this example, although the case where guidance by an evacuation route was easily performed using a controlled object device (streetlight) was explained, in order not to be restricted to a controlled object device (streetlight) in particular, for smooth traffic control It is also possible to perform control simultaneously using a plurality of control target devices (signal devices).

  In this example, a case where a disaster occurs is described as an example of a situation where a plurality of control target devices are controlled at the same time. However, the present invention is not limited to the case where a disaster occurs. .

(Modification 2)
FIG. 7 is a diagram illustrating a control target device 200Q based on the second modification of the present embodiment.

  Referring to FIG. 7A, here, a case where a plurality of control target devices (LEDs) 200Q arranged in a matrix is arranged is shown. The case where a plurality of control target devices (LEDs) 200Q are grouped for each column is shown. As an example, they are grouped into groups G1 to G5. The receiving device 100 is connected to a plurality of control target devices (LEDs) 200Q by wire or wireless, and can be controlled for each group.

  Referring to FIG. 7B, a case where a group name and a color are associated as control data from the power control server 30 is shown. The control commands are set so that the emission colors “red”, “blue”, “yellow”, “green”, “white” are associated with the group names G1 to G5, respectively, and the specified emission color is obtained. Is assigned.

  For example, with respect to control data output from the power control server 30, a plurality of control target devices (LEDs) connected to the receiving device 100 by changing the emission color assigned to each group in a time division manner. Arbitrary illumination lighting using 200Q is possible. In addition, it is naturally possible to use other light emitting elements such as an organic EL, without being limited to LEDs.

(Modification 3)
FIG. 8 is a functional block diagram of the transmission device 10 and the reception device 100 # in the digital transmission system 1 # based on the third modification of the embodiment.

  As shown in FIG. 8, it differs from the functional block diagram of FIG. 2 in that the receiving device 100 is converted into a receiving device 100 #. Receiving device 100 # is different in that position information acquisition unit 105 # is provided.

  The position information acquisition unit 105 # acquires position information such as latitude and longitude using, for example, a GPS (Global Positioning System) function.

  Data extraction unit 107 extracts control data in accordance with the position information acquired by position information acquisition unit 105 #.

FIG. 9 is a diagram illustrating an example of control data based on the third modification of the present embodiment.
Referring to FIG. 9, here, as control data from power control server 30, a case where position information on latitude and longitude, a control target device, and a control command are associated with each other is shown.

  As an example, in the case of latitude “D0” and longitude “E0”, cases where control commands X0, X0, and X1 are associated with the display target device, the alarm device, and the electric cooking appliance are shown. Yes.

  Further, in the case of latitudes “D1” and “longitude E1”, cases where control commands X0, X1, and X1 are associated with the display target device, the alarm device, and the electric cooking appliance are shown. .

The control command X0 indicates a start command, and the control command X1 indicates a stop command.
The control data in this example shows a case where the control commands in the control target apparatus differ according to the position information.

  Here, “D0”, “E0”, and the like are not fixed numerical values, but may have a certain width and range.

  By using the control data, it is possible to extract data corresponding to the region where the receiving device 100 # is located in the control data based on the latitude and longitude acquired by the GPS function.

  The data extraction unit 107 extracts corresponding latitude and longitude data according to the position information acquired by the position information acquisition unit 105 #. For example, data at latitude D0 and longitude E0 is extracted, and output unit 109 instructs to execute processing according to each control command for a plurality of connected control target devices according to the extracted data.

In this example, the control command in the control target device differs according to the area information.
For example, it is possible to change the control command between a receiving device that is close to the disaster occurrence point and a receiving device that is far from the disaster occurrence point when a disaster occurs.

  It is possible to instruct a control command that takes safety into account for a receiving device that is close to the disaster occurrence point, and to specify a control command that only calls attention to a receiving device that is far away.

  Since broadcast waves are used, it is possible to distribute to a plurality of receiving devices all at once, but it is possible to distribute according to receiving devices in each region. Thereby, it is possible to control a plurality of control target devices connected to the receiving device corresponding to each region at the same time.

  In this example, the case where the position information acquisition unit 105 # acquires the position information related to the position using the GPS function is described as an example. However, the present invention is not limited to this. Any information may be acquired as long as the position information is related to the position from which data can be extracted.

  For example, if the terminal has a GPS function, the position information may be acquired from the terminal, or even if the GPS function is not provided, the access point (AP) You may make it acquire position information by communicating.

  Further, the position information may be acquired from a storage device in which position information related to the position is stored in advance, instead of acquiring the position information using a GPS function or the like. As the storage method, the position information may be stored when the receiving apparatus 100 # is shipped, or a predetermined interface screen (position information registration screen for the user of the receiving apparatus 100 # to register the position information). The position information may be stored by performing an input operation on. For example, as the predetermined interface screen, the position information can be stored via a terminal provided to be able to communicate with the receiving device 100 #.

(Modification 4)
In the above, the digital transmission system that wirelessly transmits the digital broadcast wave signal in the ISDB-T system has been mainly described. However, the digital broadcast system is not limited to the digital broadcast wave signal in the ISDB-T system. The same applies. For example, the present invention can be similarly applied to a digital broadcast wave signal in a wired ISDB-C (ISDB-Cable) system.

  FIG. 10 is a diagram illustrating a configuration of a digital transmission system 1A based on the fourth modification of the present embodiment.

  As shown in FIG. 10, the digital transmission system 1A is different from the digital transmission system 1 of FIG. 1 in that the transmission device 10 is replaced with the transmission device 10A, and the reception device 100 is replaced with the reception device 100A. The case where 10A and the receiving device 100A are connected by a wired cable network 50 is different. In this configuration, the digital broadcast wave signal is transmitted from the transmission device 10A to the reception device 100A via the cable network 50. The transmitting device 10A transmits using a known so-called pass-through method or transmodulation method, and the receiving device 100A receives a digital broadcast wave signal transmitted by the method.

  The cable network 50 transmits a digital broadcast wave signal using a coaxial cable. In addition, it is not restricted to a coaxial cable, The format which uses together an optical fiber and a coaxial cable may be sufficient, or it may be transmitted only with an optical fiber, and it is good also as a format which uses an optical fiber and radio | wireless together.

  In this example, a transmission unit 60 connected to the cable network 50 is also shown. The transmission unit 60 transmits a digital broadcast wave signal transmitted via the cable network 50 via the transmission antenna 12A. Output. The receiving device 100A may be configured to receive the digital broadcast wave signal output from the transmitting antenna 12A.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1, 1 #, 1A digital transmission system 10, 10 #, 10A transmitter, 12, 12A transmit antenna, 14 control data generator, 15 TS converter, 108 TS / IP converter, 16 mixer, 18 OFDM modulation Unit, 30 power control server, 50 cable network, 60 transmission unit, 100, 100 #, 100A receiver, 102 reception antenna, 104 OFDM demodulation unit, 105 # position information acquisition unit, 106 broadcast data reproduction unit, 107 data extraction Part, 109 output part, 200A-200C, 200P, 200Q controlled object apparatus.

Claims (4)

A receiving device connected to a plurality of external devices classified into a first group provided on a predetermined path and a second group other than the first group ;
A receiver for receiving a broadcast wave signal;
An IP data acquisition unit for acquiring IP data superimposed on the broadcast wave signal received by the reception unit;
An extraction unit for extracting a control command multiple of the Ru contained in IP data acquired by the IP data acquisition unit,
An output unit for instructing operations according to the plurality of control commands extracted by the extraction unit to the plurality of external devices ;
The output unit is
Instructing the external device belonging to the first group to start,
A receiving device that instructs an external device belonging to the second group to stop . Wherein the plurality of control commands, is perforated and start command for instructing the start, a stop command that instructs to stop the receiving apparatus according to claim 1. The plurality of control commands are provided corresponding to the first and second groups, respectively.
The receiving device according to claim 1, wherein the output unit instructs an external device belonging to each group to perform an operation according to a corresponding control command . A position information acquisition unit for acquiring position information;
The receiving device according to claim 1, wherein the extraction unit extracts the plurality of control commands included in the IP data acquired by the IP data acquisition unit based on the location information acquired by the location information acquisition unit.

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