WO2015145678A1 - Communication control device - Google Patents

Communication control device Download PDF

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Publication number
WO2015145678A1
WO2015145678A1 PCT/JP2014/058924 JP2014058924W WO2015145678A1 WO 2015145678 A1 WO2015145678 A1 WO 2015145678A1 JP 2014058924 W JP2014058924 W JP 2014058924W WO 2015145678 A1 WO2015145678 A1 WO 2015145678A1
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WO
WIPO (PCT)
Prior art keywords
communication
unit
content
partner device
communication partner
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PCT/JP2014/058924
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French (fr)
Japanese (ja)
Inventor
匡祐 太田
大輔 平林
賢司 武田
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パイオニア株式会社
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Priority to PCT/JP2014/058924 priority Critical patent/WO2015145678A1/en
Publication of WO2015145678A1 publication Critical patent/WO2015145678A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks

Definitions

  • the present invention relates to a communication control device, a communication control method, a communication control program, and a recording medium storing the communication control program.
  • an in-vehicle device that connects a mobile phone (communication partner device) to a BT (Bluetooth (registered trademark)) and reproduces and outputs music data (content) stored in the mobile phone has been proposed.
  • BT Bluetooth (registered trademark)
  • the music playback system using the BT connection is defined as two communication systems: A2DP (Advanced Audio Distribution Profile) and AVRCP (Audio / Video Remote Control Profile).
  • A2DP is a music data transfer protocol that defines the transfer of music data
  • AVRCP is a control command transfer protocol that defines the transfer of control commands related to the control of music data.
  • A2DP connection is used.
  • A2DP connection is successful, there is a case where the A2DP connection is established. In any case, the mobile phone and the in-vehicle device are connected by both A2DP and AVRCP methods.
  • the in-vehicle device and the mobile phone are connected one-to-one, and a plurality of mobile phones cannot be connected to one in-vehicle device.
  • the mobile phone A is operated to establish A2DP and AVRCP connection between the mobile phone A and the in-vehicle device.
  • the disconnection it was necessary to operate the mobile phone B to connect the mobile phone B and the in-vehicle device with A2DP and AVRCP. For this reason, the problem that the music data which a some user has mutually cannot be reproduced
  • the present invention provides, for example, a communication control device, a communication control method, a communication control program, and a recording medium storing the communication control program, which can easily output contents that a plurality of users have with each other.
  • An example of the problem is to provide
  • the invention described in claim 1 is connected to a communication partner device by a first communication method, and receives a content from the communication partner device, and a second communication method.
  • a second communication unit that can be connected to a plurality of communication partner devices at the same time and receives a control command from the communication partner device, and an output that controls the output unit to output the content received by the first communication unit
  • the communication control unit connects the other communication partner device and the first communication unit, and receives the content transmitted from the other communication partner device to the first communication unit.
  • the output control unit causes the output unit to output the received content from the other communication partner device, and stops outputting the content if the content is being output from the connected communication partner device.
  • the invention described in claim 5 is connected to the communication partner device by the first communication method, and is connected to a plurality of communication partner devices at the same time by the second communication method and the first communication unit that receives content from the communication partner device.
  • a second communication unit that receives a control command from the communication counterpart device, an output control unit that performs control for causing the output unit to output the content received by the first communication unit, and the first communication
  • the communication control apparatus is characterized in that the first communication unit receives only content transmitted from one of the control commands indicating the latest content output request.
  • the invention described in claim 6 is connected to the communication partner device by the first communication method and the second communication method, receives the content by the first communication method, and receives the control command by the second communication method, According to the received control command, when the received content is output, connected to the other communication partner device only by the second communication method, and a reproduction request is acquired from the other communication partner device by the second communication method. , The step of stopping the output of the content of the communication partner device, and when the reproduction request is acquired from the other communication partner device by the second communication method, the connection with the communication partner device in the first communication method is stopped. And a step of performing connection with the other communication partner device in a first communication method, and a step of causing the output unit to output content received from the other communication partner device. Is a communication control method characterized. It is.
  • FIG. 4 It is a block diagram which shows one Embodiment of the navigation apparatus incorporating the communication control apparatus of this invention. It is explanatory drawing for demonstrating operation
  • the first communication unit When the first communication unit is connected to the communication partner device and the second communication unit receives a control command indicating a content output request from another communication partner device while the first communication unit is connected to the communication partner device.
  • the other communication partner device and the first communication unit are connected, the first communication unit is caused to receive the content transmitted from the other communication partner device, and the output control unit receives the received other communication partner.
  • the content from the device is output to the output unit, and the output of the content is stopped if the content is being output from the connected communication partner device.
  • the content of the other communication partner device can be easily output by simply transmitting the content output request from the other communication partner device.
  • first communication method and the second communication method may be communication profiles for short-range wireless communication, respectively.
  • the communication control unit You may make it restrict
  • the second communication unit is connected to the communication partner device and other communication partner device and receives a control command indicating a content output request from the other communication partner device, the connection with the communication partner device is maintained. It may be. Thus, if the content output request is transmitted again from the communication partner device, it is possible to switch again from the content of the other communication partner device to the output of the content of the communication partner device.
  • the second communication unit is connected to all the communication partner devices when there are a plurality of communication partner devices, and the communication control unit is connected to the plurality of communication partner devices. Only the content transmitted from one of the control commands indicating the latest content output request is received by the first communication unit. As a result, it is possible to easily output content from a plurality of communication partner devices simply by transmitting a content output request. In addition, since only one of the plurality of communication partner devices is connected to the first communication unit, the processing is lightened, and sound skipping and sound skipping due to insufficient bandwidth do not occur during switching.
  • a communication control method connects a communication partner device with a first communication method and a second communication method, receives content according to the first communication method, and controls commands according to the second communication method. In accordance with the received control command, outputting the received content, connecting to another communication partner device only in the second communication method, and requesting playback from the other communication partner device using the second communication method.
  • the connection with the communication partner device in the first communication method is stopped and A step of performing a connection with another communication partner device in the first communication method, and a step of causing the output unit to output content received from the other communication partner device.
  • a communication control program that causes a computer to execute the communication control method described above may be used. Since the program is executed by the computer in this way, dedicated hardware or the like is not necessary, and can be installed and functioned in a general-purpose information processing apparatus.
  • the communication control program described above may be stored in a computer-readable recording medium.
  • the program can be distributed as a single unit in addition to being incorporated in the device, and version upgrades can be easily performed.
  • FIG. 1 is a block diagram showing an example of a navigation device incorporating the communication control device of the present invention.
  • a navigation device 1 shown in the figure is mounted on a vehicle, for example, and has a navigation function for guiding a route to a destination.
  • the navigation device 1 includes a system control unit 2 that controls the entire device, a display device 3, an audio output device 4, and a communication unit 5, which are connected by a bus 9.
  • the system control unit 2 includes a CPU (Central Processing Unit) having a memory such as a RAM (Ramdam Access Memory) and a ROM (Read Only Memory).
  • the CPU of the system control unit 2 operates in accordance with a communication control program recorded in the ROM.
  • the display device 3 is provided, for example, on an instrument panel of a vehicle, and includes a liquid crystal display, an organic EL (Electro Luminescence) element, and the like.
  • the audio output device 4 includes, for example, a DAC (digital / analog signal converter), an amplifier, a speaker, and the like.
  • the music data output from the system control unit 2 is D / A converted by the DAC and then amplified by the amplifier. And output as sound waves from the speaker.
  • the communication unit 5 includes a BT (Bluetooth (registered trademark)) module, and can be wirelessly connected to audio devices A and B such as a smartphone and a tablet.
  • the communication unit 5 functions as a first communication unit and a second communication unit, and is configured to be connectable to the audio devices A and B by A2DP (first communication method) and AVRCP (second communication method).
  • A2DP and AVRCP are profiles defined in the BT communication standard, A2DP is a profile that regulates transfer of music data, and AVRCP is a profile that regulates transfer of a control command related to control of music data.
  • These A2DP and AVRCP mean data communication protocols defined for each function.
  • the navigation device 1 further includes an input unit 6 for inputting a destination, a GPS receiving unit 7 for receiving position information, and a map database 8 in order to realize a navigation function, Connected by a bus 9. Since this navigation function is general, a detailed description thereof is omitted here.
  • the system control unit 2 controls the communication unit 5 as shown in FIG. A certain audio device A, B is connected by AVRCP, and a control command transmitted from the audio device A, B is monitored (FIG. 2A). At this time, the navigation apparatus 1 does not perform A2DP connection with any of the audio devices A and B.
  • a control command indicating a reproduction request is transmitted when the user presses the reproduction button
  • the present invention is not limited to this.
  • a control command indicating a reproduction request may be automatically transmitted when connected.
  • the system control unit 2 receives the control command indicating the reproduction request, as shown in FIG. 2B, the system control unit 2 performs connection with the audio device A by A2DP.
  • the audio device A When the audio device A is successfully connected to the navigation device 1 by A2DP, the audio device A transmits music data by A2DP, and the communication unit 5 receives the music data.
  • the system control unit 2 outputs the music data received by the communication unit 5 to the audio output device 4 to reproduce the music data.
  • the music data stored in the audio device A is reproduced from the audio output device 4 of the navigation device 1.
  • the audio device B transmits a control command indicating a playback request by AVRCP.
  • the system control unit 2 causes the communication unit 5 to transmit a control command indicating the stop request to the audio device A by AVRCP, as shown in FIG.
  • the audio device A receives the control command indicating the stop request, the audio device A stops transmission of the music data by A2DP. Further, the system control unit 2 stops the output of the music data received from the audio device A by the audio output device 4.
  • the system control unit 2 controls the communication unit 5 to disconnect the A2DP connection with the audio device A as shown in FIG. 2D, and then performs the A2DP connection with the audio device B.
  • the audio device B transmits music data by A2DP, and the communication unit 5 receives the music data.
  • the system control unit 2 outputs the music data received by the communication unit 5 to the audio output device 4 to reproduce the audio data.
  • the music data stored in the audio device B is reproduced from the audio output device 4 of the navigation device 1.
  • the system control unit 2 includes a control module 21 that controls communication with the audio devices A and B, and a plurality of monitoring modules that monitor whether the audio devices A and B have changed from a stopped state to a playback state. 22A, 22B... And a playback module 23 for controlling the audio output device 4.
  • the control module 21 controls the communication unit 5 to connect the audio devices A and B in the communication area by AVRCP (S1, S2 in FIG. 3).
  • AVRCP AVRCP
  • the control module 21 starts monitoring whether or not a control command indicating a reproduction request is transmitted from each of the audio devices A and B to the monitoring modules 22A and 22B (S3 and S4 in FIG. 3).
  • the monitoring modules 22A and 22B monitor whether the audio devices A and B are changed from the stopped state to the playback state.
  • the monitoring modules 22A and 22B periodically transmit Register Notification commands to the audio devices A and B (S5 and S6 in FIG. 3).
  • the audio devices A and B receive this command, they transmit a Register Notification response that is a control command.
  • the audio devices A and B transmit a response indicating a stopped state unless the play button is pressed (S7 and S8 in FIG. 3).
  • the monitoring module 22A receives the response indicating the playback state
  • the monitoring module 22A notifies the control module 21 of the start of playback of the audio device A (S10 in FIG. 3).
  • the control module 21 performs connection with the audio device A by A2DP (S11 in FIG. 3).
  • the audio device A transmits music data by A2DP, and the communication unit 5 receives the music data (step S12 in FIG. 3).
  • control module 21 When the music data is received, the control module 21 outputs the music data to the reproduction module 23 (step S13 in FIG. 3).
  • the reproduction module 23 outputs the music data from the control module 21 to the audio output device 4 to reproduce the music data (step S14 in FIG. 3).
  • a response indicating the playback state is transmitted from the audio device B (step S15 in FIG. 4).
  • the monitoring module 22B receives the response indicating the reproduction request, the monitoring module 22B notifies the control module 21 of the reproduction start of the audio device B (step S16 in FIG. 4).
  • the control module 21 transmits a PASSTHROUGH command (stop), which is a control command indicating a stop request, to the audio device A ( Step S17 in FIG. As a result, the audio device A stops transmitting music data and enters a stopped state.
  • control module 21 notifies the reproduction module 23 of the reproduction stop (step S18 in FIG. 4).
  • the playback module 23 stops the playback of the music data received from the audio device A by the audio output device 4 (step S19 in FIG. 4).
  • the control module 21 disconnects the A2DP connection with the audio device A (step S20 in FIG. 4), and then performs the A2DP connection with the audio device B (step S21 in FIG. 4).
  • the audio device B transmits music data by A2DP, and the communication unit 5 receives the music data (step S22 in FIG. 4).
  • the control module 21 outputs the music data to the reproduction module 23 (step S23 in FIG. 3).
  • the reproduction module 23 outputs the music data from the control module 21 to the audio output device 4 to reproduce the music data (step SS24 in FIG. 3).
  • the control module 21 starts monitoring again whether the control command indicating the reproduction request is transmitted from the audio devices A and B to the monitoring module 22A (S25 in FIG. 4).
  • the system communication unit 2 connects the audio device B to the A2DP and The content transmitted from the device B is received, the received music data from the audio device B is output to the audio output device 4, and the reproduction of the music data is stopped if the music data from the audio device A is being reproduced. .
  • the music data from the audio device B can be easily reproduced simply by transmitting a reproduction request from the audio device B.
  • the system control unit 2 when both audio devices A and B are A2DP connected and music data is transmitted from both, there is a risk of sound skipping or lack of bandwidth when switching music data. Therefore, according to the embodiment described above, when the system control unit 2 receives a control command indicating a playback request from the audio device B by AVRCP while the A2DP is connected to the audio device A, the system control unit 2 is receiving music data from the audio device A. In this case, a stop command is transmitted to the audio device A and the A2DP connection with the audio device A is disconnected, and then the audio device B is connected to the A2DP so that music data transmitted from the audio device B is received.
  • the AVRCP connection is performed with all the audio devices A and B that can communicate
  • the A2DP connection is performed with only one of the audio devices A and B that outputs a control command indicating the latest reproduction request.
  • the processing is lightened, the A2DP connection between the audio device A and the audio device B and the reception of music data are not performed at the same time, and sound skipping due to lack of bandwidth or lack of bandwidth does not occur at the time of switching.
  • the audio device A is connected to A2DP and AVRCP, only the audio device B is connected to AVRCP (FIG. 2B), and the audio device A is connected to the A2DP by AVRCP.
  • A2DP connection with the audio device A is disconnected, but the AVRCP connection is maintained (FIG. 2E).
  • the navigation device 1 is a communication control device, but the present invention is not limited to this.
  • any device that can receive and output content from a communication partner device such as an audio device that does not have a navigation function, may be used.
  • the content is music data, but the present invention is not limited to this.
  • the content may be video data stored in the communication partner device.
  • the communication partner device is a mobile phone or the like, the content acquired via the Internet and temporarily stored may be used.
  • the audio devices A and B connected to the navigation device 1 have been described by taking two examples, but the present invention is not limited to this.
  • Three or more audio devices may be connected.
  • all of the three or more audio devices are AVRCP connected, and only the one that outputs the latest reproduction request among the three or more audio devices is A2DP connected.
  • the navigation apparatus 1 when the navigation apparatus 1 receives a reproduction request from the audio device B during the A2DP connection of the audio device A, the navigation device 1 disconnects the A2DP connection of the audio device A and from the audio device A. If music data is being received, the A2DP connection with the audio device A is limited by transmitting a stop command to the audio device A, but this is not restrictive. Only one of the stop command transmission to the audio device A and the disconnection of the A2DP connection of the audio device A may be performed. Further, the music data from the audio device A may not be received without disconnecting the A2DP connection with the audio device A and transmitting the stop command.
  • the navigation apparatus 1 is connected to the audio device B by A2DP triggered by transmission of a reproduction request, but the present invention is not limited to this.
  • all audio devices A and B may be connected to A2DP and AVRCP from the beginning.
  • a stop command is transmitted to the audio device A so that the sound is not interrupted. Only music data of A2DP may be received.
  • Navigation device (communication control device) 2 System controller (communication controller, output controller) 4. Audio output device (output unit) 5 communication units (first communication unit, second communication unit) A Audio equipment (communication partner device) B Audio equipment (other communication partner device)

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Abstract

If an audio device (A) is connected via A2DP and a control command indicating a music data play request from an audio device (B) is received over an AVRCP connection, then a system control unit (2) causes an A2DP connection with the audio device (B) to be created to allow reception of music data transmitted from the audio device (B), causes said music data received from the audio device (B) to be outputted to a sound output device (4), and stops the output of any music data from the audio device (A) that is currently being played.

Description

通信制御装置Communication control device
　本発明は、通信制御装置、通信制御方法、通信制御プログラム、及び、通信制御プログラムを格納した記録媒体に関するものである。 The present invention relates to a communication control device, a communication control method, a communication control program, and a recording medium storing the communication control program.
　上述した通信制御装置として、例えば、携帯電話（通信相手装置）とＢＴ（Bluetooth（登録商標））接続して、その携帯電話に記憶された音楽データ（コンテンツ）を再生出力する車載装置が提案されている（特許文献１～３）。 As the communication control device described above, for example, an in-vehicle device that connects a mobile phone (communication partner device) to a BT (Bluetooth (registered trademark)) and reproduces and outputs music data (content) stored in the mobile phone has been proposed. (Patent Documents 1 to 3).
　上記ＢＴ接続による音楽再生方式は、Ａ２ＤＰ(Advanced Audio Distribution Profile)と、ＡＶＲＣＰ(Audio/Video Remote Control Profile)と、の２つの通信方式が規定されている。Ａ２ＤＰは、音楽データの転送を規定する音楽データ転送プロトコルであり、ＡＶＲＣＰは、音楽データの制御にかかる制御指令の転送を規定する制御指令転送プロトコルである。従来、携帯電話と車載装置とを接続するにあたっては、例えば、ＡＶＲＣＰ接続が成功すると、Ａ２ＤＰ接続していた。逆に、Ａ２ＤＰ接続が成功すると、Ａ２ＤＰ接続する場合もある。何れにしても、Ａ２ＤＰとＡＶＲＣＰとの双方の方式で、携帯電話と車載装置とが接続されている。 The music playback system using the BT connection is defined as two communication systems: A2DP (Advanced Audio Distribution Profile) and AVRCP (Audio / Video Remote Control Profile). A2DP is a music data transfer protocol that defines the transfer of music data, and AVRCP is a control command transfer protocol that defines the transfer of control commands related to the control of music data. Conventionally, when connecting a mobile phone and an in-vehicle device, for example, when AVRCP connection is successful, A2DP connection is used. Conversely, when the A2DP connection is successful, there is a case where the A2DP connection is established. In any case, the mobile phone and the in-vehicle device are connected by both A2DP and AVRCP methods.
　しかしながら、従来のＢＴ接続では、車載装置と携帯電話とは１対１で接続され、１台の車載装置に複数の携帯電話を接続することができなかった。また、仮に接続したとしても帯域不足による音飛びが懸念される。このため、例えば、車載装置で再生する音楽データを携帯電話Ａのものから携帯電話Ｂのものに切り替えたい場合、携帯電話Ａを操作して、携帯電話Ａと車載装置とのＡ２ＤＰ及びＡＶＲＣＰ接続を切断した後、携帯電話Ｂを操作して、携帯電話Ｂと車載装置とをＡ２ＤＰ及びＡＶＲＣＰ接続する必要があった。このため、複数の利用者がお互いに持っている音楽データを簡単に車載装置で再生することができない、という問題が一例として挙げられる。 However, in the conventional BT connection, the in-vehicle device and the mobile phone are connected one-to-one, and a plurality of mobile phones cannot be connected to one in-vehicle device. Moreover, even if it is connected, there is a concern about sound skipping due to insufficient bandwidth. For this reason, for example, when the music data to be played back on the in-vehicle device is to be switched from that of the mobile phone A to that of the mobile phone B, the mobile phone A is operated to establish A2DP and AVRCP connection between the mobile phone A and the in-vehicle device. After the disconnection, it was necessary to operate the mobile phone B to connect the mobile phone B and the in-vehicle device with A2DP and AVRCP. For this reason, the problem that the music data which a some user has mutually cannot be reproduced | regenerated easily with a vehicle-mounted apparatus is mentioned as an example.
特開２００８－２７３３７０号公報JP 2008-273370 A 特開２０１３－２３６３４６号公報JP 2013-236346 A 特開２０１３－１３０１１号公報JP 2013-13011 A
　そこで、本発明は、例えば、複数の利用者がお互いに持っているコンテンツを簡単に出力することができる通信制御装置、通信制御方法、通信制御プログラム、及び、通信制御プログラムを格納した記録媒体、を提供することを課題の一例とする。 Therefore, the present invention provides, for example, a communication control device, a communication control method, a communication control program, and a recording medium storing the communication control program, which can easily output contents that a plurality of users have with each other. An example of the problem is to provide
　上記課題を解決するために、請求項１に記載された発明は、第一通信方式によって通信相手装置と接続され、当該通信相手装置からコンテンツを受信する第一通信部と、第二通信方式によって同時に複数の通信相手装置と接続可能であり、当該通信相手装置から制御指令を受信する第二通信部と、前記第一通信部により受信した前記コンテンツを出力部に出力させるための制御を行う出力制御部と、前記第一通信部を制御する通信制御部と、を備え、前記第一通信部が通信相手装置と接続中に、前記第二通信部が他の通信相手装置からコンテンツ出力要求を示す制御指令を受信すると、前記通信制御部が、前記他の通信相手装置と前記第一通信部とを接続させると共に前記第一通信部に当該他の通信相手装置から送信されるコンテンツを受信させ、前記出力制御部が、当該受信した前記他の通信相手装置からのコンテンツを前記出力部に出力させると共に、接続中の前記通信相手装置からのコンテンツ出力中であれば当該コンテンツの出力を停止させることを特徴とする通信制御装置である。 In order to solve the above-mentioned problem, the invention described in claim 1 is connected to a communication partner device by a first communication method, and receives a content from the communication partner device, and a second communication method. A second communication unit that can be connected to a plurality of communication partner devices at the same time and receives a control command from the communication partner device, and an output that controls the output unit to output the content received by the first communication unit A control unit, and a communication control unit that controls the first communication unit, wherein the second communication unit issues a content output request from another communication partner device while the first communication unit is connected to the communication partner device. When the control command is received, the communication control unit connects the other communication partner device and the first communication unit, and receives the content transmitted from the other communication partner device to the first communication unit. The output control unit causes the output unit to output the received content from the other communication partner device, and stops outputting the content if the content is being output from the connected communication partner device. A communication control device.
　請求項５に記載された発明は、第一通信方式によって通信相手装置と接続され、当該通信相手装置からコンテンツを受信する第一通信部と、第二通信方式によって同時に複数の通信相手装置と接続可能であり、当該通信相手装置から制御指令を受信する第二通信部と、前記第一通信部により受信した前記コンテンツを出力部に出力させるための制御を行う出力制御部と、前記第一通信部を制御する通信制御部と、を備え、前記第二通信部は、複数の通信相手装置がある場合、全ての通信相手装置と接続され、前記通信制御部は、前記複数の通信相手装置のうち最新のコンテンツ出力要求を示す制御指令を送信した１つから送信されるコンテンツのみ前記第一通信部に受信させることを特徴とする通信制御装置である。 The invention described in claim 5 is connected to the communication partner device by the first communication method, and is connected to a plurality of communication partner devices at the same time by the second communication method and the first communication unit that receives content from the communication partner device. A second communication unit that receives a control command from the communication counterpart device, an output control unit that performs control for causing the output unit to output the content received by the first communication unit, and the first communication A communication control unit for controlling the communication unit, and when there are a plurality of communication partner devices, the second communication unit is connected to all communication partner devices, and the communication control unit is configured to connect the plurality of communication partner devices. Among these, the communication control apparatus is characterized in that the first communication unit receives only content transmitted from one of the control commands indicating the latest content output request.
　請求項６に記載された発明は、通信相手装置と第一通信方式及び第二通信方式で接続し、第一通信方式によってコンテンツを受信すると共に、前記第二通信方式によって制御指令を受信し、当該受信した制御命令に従って、受信したコンテンツを出力する工程と、他の通信相手装置と前記第二通信方式のみで接続し、前記他の通信相手装置から第二通信方式によって再生の要求を取得すると、前記通信相手装置のコンテンツの出力を停止する工程と、前記他の通信相手装置から第二通信方式によって再生の要求を取得すると、前記通信相手装置との第一通信方式での接続を停止すると共に前記他の通信相手装置との第一通信方式での接続を行う工程と、前記他の通信相手装置から受信したコンテンツを出力部に出力させる工程と、を含むことを特徴とする通信制御方法である。
である。 The invention described in claim 6 is connected to the communication partner device by the first communication method and the second communication method, receives the content by the first communication method, and receives the control command by the second communication method, According to the received control command, when the received content is output, connected to the other communication partner device only by the second communication method, and a reproduction request is acquired from the other communication partner device by the second communication method. , The step of stopping the output of the content of the communication partner device, and when the reproduction request is acquired from the other communication partner device by the second communication method, the connection with the communication partner device in the first communication method is stopped. And a step of performing connection with the other communication partner device in a first communication method, and a step of causing the output unit to output content received from the other communication partner device. Is a communication control method characterized.
It is.
本発明の通信制御装置を組み込んだナビゲーション装置の一実施形態を示すブロック図である。It is a block diagram which shows one Embodiment of the navigation apparatus incorporating the communication control apparatus of this invention. 図１に示すナビゲーション装置の動作を説明するための説明図である。It is explanatory drawing for demonstrating operation | movement of the navigation apparatus shown in FIG. 図１に示すナビゲーション装置の動作を説明するためのシーケンス図である。It is a sequence diagram for demonstrating operation | movement of the navigation apparatus shown in FIG. 図３に示すシーケンス図の続きである。FIG. 4 is a continuation of the sequence diagram shown in FIG. 3.
　以下、本発明の一実施形態にかかる通信制御装置を説明する。本発明の一実施形態に係る通信制御装置は、第一通信部が通信相手装置と接続中に、第二通信部が他の通信相手装置からコンテンツ出力要求を示す制御指令を受信すると、通信制御部が、他の通信相手装置と第一通信部とを接続させると共に第一通信部に当該他の通信相手装置から送信されるコンテンツを受信させ、出力制御部が、当該受信した他の通信相手装置からのコンテンツを出力部に出力させると共に、接続中の通信相手装置からのコンテンツ出力中であれば当該コンテンツの出力を停止させる。これにより、第一通信部に通信相手装置が接続中であっても、他の通信相手装置からコンテンツ出力要求を送信させるだけで簡単に他の通信相手装置のコンテンツを出力させることができる。 Hereinafter, a communication control apparatus according to an embodiment of the present invention will be described. When the first communication unit is connected to the communication partner device and the second communication unit receives a control command indicating a content output request from another communication partner device while the first communication unit is connected to the communication partner device. The other communication partner device and the first communication unit are connected, the first communication unit is caused to receive the content transmitted from the other communication partner device, and the output control unit receives the received other communication partner. The content from the device is output to the output unit, and the output of the content is stopped if the content is being output from the connected communication partner device. As a result, even when the communication partner device is connected to the first communication unit, the content of the other communication partner device can be easily output by simply transmitting the content output request from the other communication partner device.
　また、第一通信方式と第二通信方式とは、それぞれ近距離無線通信の通信プロファイルであってもよい。 Further, the first communication method and the second communication method may be communication profiles for short-range wireless communication, respectively.
　また、通信制御部は、第一通信部が通信相手装置と接続中に、第二通信部が他の通信相手装置からコンテンツ出力要求を示す制御指令を受信すると、接続中の通信相手装置と第一通信部との接続を制限するようにしてもよい。これにより、現在接続されている通信相手装置と後からコンテンツ出力要求を送信した他の通信相手装置とからのコンテンツの受信を同時に行うことがない。このため、処理が軽くなると共に、切り替え時に音切れや帯域不足による音飛びが発生することがない。 Further, when the second communication unit receives a control command indicating a content output request from another communication partner device while the first communication unit is connected to the communication partner device, the communication control unit You may make it restrict | limit the connection with one communication part. This prevents simultaneous reception of content from the currently connected communication partner device and other communication partner devices that have transmitted content output requests later. For this reason, the processing is lightened, and sound skipping and skipping due to insufficient bandwidth do not occur at the time of switching.
　また、第二通信部が、通信相手装置及び他の通信相手装置に接続され、他の通信相手装置からコンテンツ出力要求を示す制御指令を受信しても、通信相手装置との接続は維持するようにしてもよい。これにより、通信相手装置から再びコンテンツ出力要求を送信すれば、他の通信相手装置のコンテンツから通信相手装置のコンテンツの出力に再び切り替えることができる。 Further, even if the second communication unit is connected to the communication partner device and other communication partner device and receives a control command indicating a content output request from the other communication partner device, the connection with the communication partner device is maintained. It may be. Thus, if the content output request is transmitted again from the communication partner device, it is possible to switch again from the content of the other communication partner device to the output of the content of the communication partner device.
　また、本発明の一実施形態にかかる通信制御装置は、第二通信部は、複数の通信相手装置がある場合、全ての通信相手装置と接続され、通信制御部は、複数の通信相手装置のうち最新のコンテンツ出力要求を示す制御指令を送信した１つから送信されるコンテンツのみ前記第一通信部に受信させる。これにより、コンテンツ出力要求を送信させるだけで簡単に複数の通信相手装置からのコンテンツを出力することができる。しかも、第一通信部には複数の通信相手装置の１つしか接続されないので、処理が軽くなると共に、切り替え時に音切れや帯域不足による音飛びが発生することがない。 In the communication control device according to the embodiment of the present invention, the second communication unit is connected to all the communication partner devices when there are a plurality of communication partner devices, and the communication control unit is connected to the plurality of communication partner devices. Only the content transmitted from one of the control commands indicating the latest content output request is received by the first communication unit. As a result, it is possible to easily output content from a plurality of communication partner devices simply by transmitting a content output request. In addition, since only one of the plurality of communication partner devices is connected to the first communication unit, the processing is lightened, and sound skipping and sound skipping due to insufficient bandwidth do not occur during switching.
　また、本発明の一実施形態にかかる通信制御方法は、通信相手装置と第一通信方式及び第二通信方式で接続し、第一通信方式によってコンテンツを受信すると共に、第二通信方式によって制御指令を受信し、当該受信した制御命令に従って、受信したコンテンツを出力する工程と、他の通信相手装置と第二通信方式のみで接続し、他の通信相手装置から第二通信方式によって再生の要求を取得すると、通信相手装置のコンテンツの出力を停止する工程と、他の通信相手装置から第二通信方式によって再生の要求を取得すると、通信相手装置との第一通信方式での接続を停止すると共に他の通信相手装置との第一通信方式での接続を行う工程と、他の通信相手装置から受信したコンテンツを出力部に出力させる工程と、を含む。これにより、通信相手装置からのコンテンツ再生中に、他の通信相手装置からのコンテンツ出力要求を送信させるだけで簡単に他の通信相手装置のコンテンツ再生に切り替えることができる。 In addition, a communication control method according to an embodiment of the present invention connects a communication partner device with a first communication method and a second communication method, receives content according to the first communication method, and controls commands according to the second communication method. In accordance with the received control command, outputting the received content, connecting to another communication partner device only in the second communication method, and requesting playback from the other communication partner device using the second communication method. Once acquired, the process of stopping the output of the content of the communication partner device, and when the reproduction request is acquired from the other communication partner device by the second communication method, the connection with the communication partner device in the first communication method is stopped and A step of performing a connection with another communication partner device in the first communication method, and a step of causing the output unit to output content received from the other communication partner device. Thereby, during content reproduction from the communication partner device, it is possible to easily switch to content reproduction of another communication partner device by simply transmitting a content output request from the other communication partner device.
　また、上述した通信制御方法をコンピュータにより実行させる通信制御プログラムとしてもよい。このようにコンピュータにより実行されるプログラムであるので、専用のハードウエア等が不要となり、汎用の情報処理装置にインストールして機能させることができる。 Also, a communication control program that causes a computer to execute the communication control method described above may be used. Since the program is executed by the computer in this way, dedicated hardware or the like is not necessary, and can be installed and functioned in a general-purpose information processing apparatus.
　また、上述した通信制御プログラムをコンピュータ読み取り可能な記録媒体に格納してもよい。このようにすることにより、当該プログラムを機器に組み込む以外に単体でも流通させることができ、バージョンアップ等も容易に行える。 Further, the communication control program described above may be stored in a computer-readable recording medium. In this way, the program can be distributed as a single unit in addition to being incorporated in the device, and version upgrades can be easily performed.
　次に、上述した通信制御装置及び通信制御方法について、図１を参照して以下説明する。図１は、本発明の通信制御装置を組み込んだナビゲーション装置の一例を示すブロック図である。同図に示すナビゲーション装置１は、例えば車両に搭載され、目的地までの経路を案内するナビゲーション機能を有している。また、本実施例のナビゲーション装置１は、このナビゲーション機能の他に、スマートホンやタブレットなどのオーディオ機器Ａ、Ｂ（＝通信相手装置）と無線通信して、オーディオ機器Ａ、Ｂに記憶されている音楽データなどのコンテンツを再生出力するコンテンツ出力機能を有している。 Next, the above-described communication control apparatus and communication control method will be described below with reference to FIG. FIG. 1 is a block diagram showing an example of a navigation device incorporating the communication control device of the present invention. A navigation device 1 shown in the figure is mounted on a vehicle, for example, and has a navigation function for guiding a route to a destination. In addition to the navigation function, the navigation device 1 of the present embodiment wirelessly communicates with audio devices A and B (= communication partner devices) such as smartphones and tablets, and is stored in the audio devices A and B. It has a content output function for reproducing and outputting content such as music data.
　上記ナビゲーション装置１は、装置全体の制御を司るシステム制御部２と、表示装置３と、音声出力装置４と、通信部５と、が備えられ、これらがバス９で接続されている。システム制御部２は、例えばＲＡＭ（Ramdam Access Memory）やＲＯＭ（Read Only Memory）などのメモリを備えたＣＰＵ（Central Processing Unit）で構成される。このシステム制御部２のＣＰＵは、ＲＯＭに記録された通信制御用プログラムに従って動作を行う。 The navigation device 1 includes a system control unit 2 that controls the entire device, a display device 3, an audio output device 4, and a communication unit 5, which are connected by a bus 9. The system control unit 2 includes a CPU (Central Processing Unit) having a memory such as a RAM (Ramdam Access Memory) and a ROM (Read Only Memory). The CPU of the system control unit 2 operates in accordance with a communication control program recorded in the ROM.
　表示装置３は、例えば車両のインストルメントパネルに設けられており、液晶ディスプレイ、有機ＥＬ（Electro Luminescence）素子等から構成される。 The display device 3 is provided, for example, on an instrument panel of a vehicle, and includes a liquid crystal display, an organic EL (Electro Luminescence) element, and the like.
　音声出力装置４は、例えば、ＤＡＣ（デジタル／アナログ信号変換器）、アンプ、スピーカ等を備えており、システム制御部２から出力された音楽データをＤＡＣによりＤ／Ａ変換した後、アンプにより増幅してスピーカから音波として出力する。 The audio output device 4 includes, for example, a DAC (digital / analog signal converter), an amplifier, a speaker, and the like. The music data output from the system control unit 2 is D / A converted by the DAC and then amplified by the amplifier. And output as sound waves from the speaker.
　通信部５は、ＢＴ(Bluetooth（登録商標）)モジュールから構成され、スマートホンやタブレットなどのオーディオ機器Ａ、Ｂに無線接続できるようになっている。この通信部５は、第一通信部及び第二通信部として機能し、Ａ２ＤＰ（第一通信方式）及びＡＶＲＣＰ（第二通信方式）によってオーディオ機器Ａ、Ｂと接続可能に構成されている。Ａ２ＤＰ及びＡＶＲＣＰは、ＢＴの通信規格で規定されているプロファイルであり、Ａ２ＤＰは音楽データの転送を規定するプロファイルであり、ＡＶＲＣＰは音楽データの制御にかかる制御指令の転送を規定するプロファイルである。これらＡ２ＤＰ、ＡＶＲＣＰは機能毎に定義されたデータ通信プロトコルを意味している。 The communication unit 5 includes a BT (Bluetooth (registered trademark)) module, and can be wirelessly connected to audio devices A and B such as a smartphone and a tablet. The communication unit 5 functions as a first communication unit and a second communication unit, and is configured to be connectable to the audio devices A and B by A2DP (first communication method) and AVRCP (second communication method). A2DP and AVRCP are profiles defined in the BT communication standard, A2DP is a profile that regulates transfer of music data, and AVRCP is a profile that regulates transfer of a control command related to control of music data. These A2DP and AVRCP mean data communication protocols defined for each function.
　また、ナビゲーション装置１は、ナビゲーション機能を実現するために、目的地などを入力するための入力部６と、位置情報を受信するためのＧＰＳ受信部７と、地図データベース８と、をさらに備え、バス９によって接続されている。このナビゲーション機能については、一般的なものであるため、ここでは詳細な説明は省略する。 The navigation device 1 further includes an input unit 6 for inputting a destination, a GPS receiving unit 7 for receiving position information, and a map database 8 in order to realize a navigation function, Connected by a bus 9. Since this navigation function is general, a detailed description thereof is omitted here.
　次に、上述した構成のナビゲーション装置１のコンテンツ出力機能における動作の概略について図２を参照して説明する。まず、システム制御部２は、例えば車両のイグニッションスイッチがオンされると、図２（Ａ）に示すように、通信部５を制御して、通信エリア内にあるＢＴ通信可能な通信相手装置であるオーディオ機器Ａ、ＢとＡＶＲＣＰによる接続を行い、オーディオ機器Ａ、Ｂから送信される制御指令の監視を行う（図２（Ａ））。このとき、ナビゲーション装置１は、何れのオーディオ機器Ａ、ＢともＡ２ＤＰ接続を行わない。 Next, an outline of the operation in the content output function of the navigation device 1 having the above-described configuration will be described with reference to FIG. First, for example, when a vehicle ignition switch is turned on, the system control unit 2 controls the communication unit 5 as shown in FIG. A certain audio device A, B is connected by AVRCP, and a control command transmitted from the audio device A, B is monitored (FIG. 2A). At this time, the navigation apparatus 1 does not perform A2DP connection with any of the audio devices A and B.
　利用者が再生ボタンを押すと、オーディオ機器ＡからＡＶＲＣＰによって再生要求（＝出力要求）を示す制御指令が送信される。なお、本実施例では、説明を簡単にするために、利用者が再生ボタンを押すと再生要求を示す制御指令を送信する例について説明するが、これに限ったものではない。例えば、接続されると自動的に再生要求を示す制御指令を送信する場合もある。システム制御部２は、この再生要求を示す制御指令を受信すると、図２（Ｂ）に示すように、オーディオ機器ＡとＡ２ＤＰによる接続を行う。オーディオ機器Ａは、ナビゲーション装置１とのＡ２ＤＰによる接続が成功すると、Ａ２ＤＰによって音楽データを送信し、通信部５がこの音楽データを受信する。システム制御部２は、この通信部５が受信した音楽データを音声出力装置４に出力して音楽データを再生する。これにより、ナビゲーション装置１の音声出力装置４からはオーディオ機器Ａに記憶された音楽データが再生される。 When the user presses the playback button, a control command indicating a playback request (= output request) is transmitted from the audio device A by AVRCP. In the present embodiment, in order to simplify the description, an example in which a control command indicating a reproduction request is transmitted when the user presses the reproduction button will be described, but the present invention is not limited to this. For example, a control command indicating a reproduction request may be automatically transmitted when connected. When the system control unit 2 receives the control command indicating the reproduction request, as shown in FIG. 2B, the system control unit 2 performs connection with the audio device A by A2DP. When the audio device A is successfully connected to the navigation device 1 by A2DP, the audio device A transmits music data by A2DP, and the communication unit 5 receives the music data. The system control unit 2 outputs the music data received by the communication unit 5 to the audio output device 4 to reproduce the music data. As a result, the music data stored in the audio device A is reproduced from the audio output device 4 of the navigation device 1.
　その後、利用者が再生ボタンを押すと、オーディオ機器ＢからＡＶＲＣＰによって再生要求を示す制御指令が送信される。システム制御部２は、この再生要求を示す制御指令を受信すると、図２（Ｃ）に示すように、通信部５からオーディオ機器Ａに対してＡＶＲＣＰによって停止要求を示す制御指令を送信させる。オーディオ機器Ａは、この停止要求を示す制御指令を受信すると、Ａ２ＤＰによる音楽データの送信を停止する。また、システム制御部２は、音声出力装置４によるオーディオ機器Ａから受信した音楽データの出力を停止する。 Thereafter, when the user presses the playback button, the audio device B transmits a control command indicating a playback request by AVRCP. When receiving the control command indicating the reproduction request, the system control unit 2 causes the communication unit 5 to transmit a control command indicating the stop request to the audio device A by AVRCP, as shown in FIG. When the audio device A receives the control command indicating the stop request, the audio device A stops transmission of the music data by A2DP. Further, the system control unit 2 stops the output of the music data received from the audio device A by the audio output device 4.
　その後、システム制御部２は、通信部５を制御して、図２（Ｄ）に示すように、オーディオ機器ＡとのＡ２ＤＰによる接続を切断した後、オーディオ機器ＢとのＡ２ＤＰによる接続を行う。オーディオ機器Ｂは、ナビゲーション装置１とのＡ２ＤＰによる接続が成功すると、Ａ２ＤＰによって音楽データを送信し、通信部５がこの音楽データを受信する。システム制御部２は、図２（Ｅ）に示すように、この通信部５が受信した音楽データを音声出力装置４に出力して音声データを再生する。これにより、ナビゲーション装置１の音声出力装置４からはオーディオ機器Ｂに記憶された音楽データが再生される。 After that, the system control unit 2 controls the communication unit 5 to disconnect the A2DP connection with the audio device A as shown in FIG. 2D, and then performs the A2DP connection with the audio device B. When the audio device B is successfully connected to the navigation device 1 by A2DP, the audio device B transmits music data by A2DP, and the communication unit 5 receives the music data. As shown in FIG. 2E, the system control unit 2 outputs the music data received by the communication unit 5 to the audio output device 4 to reproduce the audio data. Thereby, the music data stored in the audio device B is reproduced from the audio output device 4 of the navigation device 1.
　次に、上記概略で説明したナビゲーション装置１の詳細を図３及び図４に基づいて説明する。図３に示すように、システム制御部２は、オーディオ機器Ａ、Ｂとの通信制御を行う制御モジュール２１と、オーディオ機器Ａ、Ｂが停止状態から再生状態になったかを監視する複数の監視モジュール２２Ａ、２２Ｂ…と、音声出力装置４の制御を行う再生モジュール２３と、を備えている。 Next, details of the navigation device 1 described in the above outline will be described with reference to FIGS. As shown in FIG. 3, the system control unit 2 includes a control module 21 that controls communication with the audio devices A and B, and a plurality of monitoring modules that monitor whether the audio devices A and B have changed from a stopped state to a playback state. 22A, 22B... And a playback module 23 for controlling the audio output device 4.
　まず、制御モジュール２１は、例えば車両のイグニッションスイッチがオンされると、通信部５を制御して、通信エリア内にあるオーディオ機器Ａ、ＢとＡＶＲＣＰによる接続を行う（図３のＳ１、Ｓ２）。ＡＶＲＣＰ接続が成功すると、制御モジュール２１は、監視モジュール２２Ａ、２２Ｂ各々にオーディオ機器Ａ、Ｂから再生要求を示す制御指令が送信されたかの監視を開始させる（図３のＳ３、Ｓ４）。これにより、上記監視モジュール２２Ａ、２２Ｂは、オーディオ機器Ａ、Ｂが停止状態から再生状態になったかを監視する。 First, for example, when the ignition switch of the vehicle is turned on, the control module 21 controls the communication unit 5 to connect the audio devices A and B in the communication area by AVRCP (S1, S2 in FIG. 3). . When the AVRCP connection is successful, the control module 21 starts monitoring whether or not a control command indicating a reproduction request is transmitted from each of the audio devices A and B to the monitoring modules 22A and 22B (S3 and S4 in FIG. 3). Thus, the monitoring modules 22A and 22B monitor whether the audio devices A and B are changed from the stopped state to the playback state.
　具体的には、監視モジュール２２Ａ、２２Ｂは、定期的にRegister Notificationコマンドをオーディオ機器Ａ、Ｂに送信する（図３のＳ５、Ｓ６）。オーディオ機器Ａ、Ｂはこのコマンドを受信すると、制御指令であるRegister Notification応答を送信する。このとき、オーディオ機器Ａ、Ｂは、再生ボタンが押されていなければ停止状態を示す応答を送信する（図３のＳ７、Ｓ８）。 Specifically, the monitoring modules 22A and 22B periodically transmit Register Notification commands to the audio devices A and B (S5 and S6 in FIG. 3). When the audio devices A and B receive this command, they transmit a Register Notification response that is a control command. At this time, the audio devices A and B transmit a response indicating a stopped state unless the play button is pressed (S7 and S8 in FIG. 3).
　利用者がオーディオ機器Ａに記憶された音楽データを選択して再生ボタンを押すと、オーディオ機器Ａから再生状態を示す応答（＝再生要求を示す制御指令）が送信される（図３のＳ９）。監視モジュール２２Ａは、この再生状態を示す応答を受信すると、制御モジュール２１に対してオーディオ機器Ａの再生開始を通知する（図３のＳ１０）。これに応じて、制御モジュール２１は、オーディオ機器ＡとＡ２ＤＰによる接続を行う（図３のＳ１１）。オーディオ機器Ａは、ナビゲーション装置１とのＡ２ＤＰによる接続が成功すると、Ａ２ＤＰによって音楽データを送信し、通信部５がこの音楽データを受信する（図３のステップＳ１２）。音楽データを受信すると、制御モジュール２１は、その音楽データを再生モジュール２３に出力する（図３のステップＳ１３）。再生モジュール２３は、制御モジュール２１からの音楽データを音声出力装置４に出力して音楽データを再生する（図３のステップＳ１４）。 When the user selects music data stored in the audio device A and presses the play button, the audio device A transmits a response indicating a playback state (= control command indicating a playback request) (S9 in FIG. 3). . When the monitoring module 22A receives the response indicating the playback state, the monitoring module 22A notifies the control module 21 of the start of playback of the audio device A (S10 in FIG. 3). In response to this, the control module 21 performs connection with the audio device A by A2DP (S11 in FIG. 3). When the audio device A is successfully connected to the navigation device 1 by A2DP, the audio device A transmits music data by A2DP, and the communication unit 5 receives the music data (step S12 in FIG. 3). When the music data is received, the control module 21 outputs the music data to the reproduction module 23 (step S13 in FIG. 3). The reproduction module 23 outputs the music data from the control module 21 to the audio output device 4 to reproduce the music data (step S14 in FIG. 3).
　その後、利用者がオーディオ機器Ｂに記憶された音楽データを選択して再生ボタンを押すと、オーディオ機器Ｂから再生状態を示す応答が送信される（図４のステップＳ１５）。監視モジュール２２Ｂは、この再生要求を示す応答を受信すると、制御モジュール２１に対してオーディオ機器Ｂの再生開始を通知する（図４のステップＳ１６）。制御モジュール２１は、オーディオ機器Ａからの音楽データ再生中に、オーディオ機器Ｂの再生開始通知を受け取ると、オーディオ機器Ａに対して停止要求を示す制御指令であるPASSTHROUGHマンド（停止）を送信する（図４のステップＳ１７）。これによりオーディオ機器Ａは音楽データの送信を停止し停止状態となる。また、制御モジュール２１は、再生モジュール２３に対して再生停止を通知する（図４のステップＳ１８）。この通知を受けて再生モジュール２３は、音声出力装置４によるオーディオ機器Ａから受信した音楽データの再生を停止する（図４のステップＳ１９）。 Thereafter, when the user selects music data stored in the audio device B and presses the play button, a response indicating the playback state is transmitted from the audio device B (step S15 in FIG. 4). When the monitoring module 22B receives the response indicating the reproduction request, the monitoring module 22B notifies the control module 21 of the reproduction start of the audio device B (step S16 in FIG. 4). When receiving the playback start notification of the audio device B during playback of music data from the audio device A, the control module 21 transmits a PASSTHROUGH command (stop), which is a control command indicating a stop request, to the audio device A ( Step S17 in FIG. As a result, the audio device A stops transmitting music data and enters a stopped state. Further, the control module 21 notifies the reproduction module 23 of the reproduction stop (step S18 in FIG. 4). Upon receiving this notification, the playback module 23 stops the playback of the music data received from the audio device A by the audio output device 4 (step S19 in FIG. 4).
　その後、制御モジュール２１は、オーディオ機器ＡとのＡ２ＤＰによる接続を切断した後（図４のステップＳ２０）、オーディオ機器ＢとのＡ２ＤＰによる接続を行う（図４のステップＳ２１）。オーディオ機器Ｂは、ナビゲーション装置１とのＡ２ＤＰによる接続が成功すると、Ａ２ＤＰによって音楽データを送信し、通信部５がこの音楽データを受信する（図４のステップＳ２２）。音楽データを受信すると、制御モジュール２１は、その音楽データを再生モジュール２３に出力する（図３のステップＳ２３）。再生モジュール２３は、制御モジュール２１からの音楽データを音声出力装置４に出力して音楽データを再生する（図３のステップＳＳ２４）。また、制御モジュール２１は、監視モジュール２２Ａにオーディオ機器Ａ、Ｂから再生要求を示す制御指令が送信されたかの監視を再び開始させる（図４のＳ２５）。 Thereafter, the control module 21 disconnects the A2DP connection with the audio device A (step S20 in FIG. 4), and then performs the A2DP connection with the audio device B (step S21 in FIG. 4). When the audio device B is successfully connected to the navigation device 1 by A2DP, the audio device B transmits music data by A2DP, and the communication unit 5 receives the music data (step S22 in FIG. 4). When the music data is received, the control module 21 outputs the music data to the reproduction module 23 (step S23 in FIG. 3). The reproduction module 23 outputs the music data from the control module 21 to the audio output device 4 to reproduce the music data (step SS24 in FIG. 3). Further, the control module 21 starts monitoring again whether the control command indicating the reproduction request is transmitted from the audio devices A and B to the monitoring module 22A (S25 in FIG. 4).
　上述した実施例によれば、オーディオ機器ＡがＡ２ＤＰ接続中に、ＡＶＲＣＰによってオーディオ機器Ｂから再生要求を示す制御指令を受信すると、システム通信部２が、オーディオ機器ＢをＡ２ＤＰ接続させると共に、当該オーディオ機器Ｂから送信されるコンテンツを受信させ、受信したオーディオ機器Ｂからの音楽データを音声出力装置４に出力させると共に、オーディオ機器Ａからの音楽データ再生中であればその音楽データの再生を停止させる。これにより、オーディオ機器ＡがＡ２ＤＰ接続中であっても、オーディオ機器Ｂからの再生要求を送信させるだけで簡単にオーディオ機器Ｂからの音楽データを再生することができる。 According to the embodiment described above, when the audio device A receives a control command indicating a reproduction request from the audio device B by AVRCP while the A2DP is connected, the system communication unit 2 connects the audio device B to the A2DP and The content transmitted from the device B is received, the received music data from the audio device B is output to the audio output device 4, and the reproduction of the music data is stopped if the music data from the audio device A is being reproduced. . As a result, even when the audio device A is connected to the A2DP, the music data from the audio device B can be easily reproduced simply by transmitting a reproduction request from the audio device B.
　ところで、オーディオ機器Ａ、Ｂの双方ともがＡ２ＤＰ接続されて、双方から音楽データが送信されると、音楽データを切り替える際に、音切れや帯域不足による音飛びの恐れがある。そこで、上述した実施例によれば、システム制御部２は、オーディオ機器ＡのＡ２ＤＰ接続中に、ＡＶＲＣＰによってオーディオ機器Ｂから再生要求を示す制御指令を受信すると、オーディオ機器Ａからの音楽データ受信中であればオーディオ機器Ａに停止命令を送信すると共にオーディオ機器ＡとのＡ２ＤＰ接続を切断した後、オーディオ機器ＢとＡ２ＤＰ接続させ、オーディオ機器Ｂから送信される音楽データを受信させるようにしている。即ち、ＡＶＲＣＰ接続は通信可能な全てのオーディオ機器Ａ及びＢと行われ、Ａ２ＤＰ接続はオーディオ機器Ａ、Ｂのうち最新の再生要求を示す制御指令を出力した１つのみと行っている。これにより、処理が軽くなると共に、オーディオ機器Ａとオーディオ機器ＢとのＡ２ＤＰ接続や音楽データの受信が同時に行われることがなく、切り替え時に音切れや帯域不足による音飛びが発生することがない。 By the way, when both audio devices A and B are A2DP connected and music data is transmitted from both, there is a risk of sound skipping or lack of bandwidth when switching music data. Therefore, according to the embodiment described above, when the system control unit 2 receives a control command indicating a playback request from the audio device B by AVRCP while the A2DP is connected to the audio device A, the system control unit 2 is receiving music data from the audio device A. In this case, a stop command is transmitted to the audio device A and the A2DP connection with the audio device A is disconnected, and then the audio device B is connected to the A2DP so that music data transmitted from the audio device B is received. That is, the AVRCP connection is performed with all the audio devices A and B that can communicate, and the A2DP connection is performed with only one of the audio devices A and B that outputs a control command indicating the latest reproduction request. As a result, the processing is lightened, the A2DP connection between the audio device A and the audio device B and the reception of music data are not performed at the same time, and sound skipping due to lack of bandwidth or lack of bandwidth does not occur at the time of switching.
　上述した実施形態によれば、オーディオ機器ＡとＡ２ＤＰ及びＡＶＲＣＰとの接続を行わせ、オーディオ機器ＢとＡＶＲＣＰ接続のみを行わせ（図２（Ｂ））、オーディオ機器ＡのＡ２ＤＰ接続中にＡＶＲＣＰによりオーディオ機器Ｂから再生要求を示す制御指令を受信すると、オーディオ機器ＡとのＡ２ＤＰ接続は切断するが、ＡＶＲＣＰ接続は維持されている（図２（Ｅ））。これにより、オーディオ機器Ａから再び再生要求を送信すれば、オーディオ機器Ｂの音楽データからオーディオ機器Ａの音楽データの再生に再び切り替えることができる。 According to the above-described embodiment, the audio device A is connected to A2DP and AVRCP, only the audio device B is connected to AVRCP (FIG. 2B), and the audio device A is connected to the A2DP by AVRCP. When a control command indicating a playback request is received from the audio device B, the A2DP connection with the audio device A is disconnected, but the AVRCP connection is maintained (FIG. 2E). Thus, if the reproduction request is transmitted again from the audio device A, the music data of the audio device B can be switched again to the reproduction of the music data of the audio device A.
　なお、上述した実施例では、ナビゲーション装置１を通信制御装置としていたが、これに限ったものではない。例えば、通信相手装置からのコンテンツを受信して出力できるような装置であればよく、ナビ機能を有していないオーディオ装置などであってもよい。 In the embodiment described above, the navigation device 1 is a communication control device, but the present invention is not limited to this. For example, any device that can receive and output content from a communication partner device, such as an audio device that does not have a navigation function, may be used.
　また、上述した実施例では、コンテンツが音楽データであったが、これに限ったものではない。例えば、コンテンツとしては通信相手装置に記憶された映像データであってもよい。また、通信相手装置が携帯電話などである場合、インターネット経由で取得して一時的に記憶されているコンテンツであってもよい。 In the above-described embodiment, the content is music data, but the present invention is not limited to this. For example, the content may be video data stored in the communication partner device. Further, when the communication partner device is a mobile phone or the like, the content acquired via the Internet and temporarily stored may be used.
　また、上述した実施例によれば、ナビゲーション装置１に接続されるオーディオ機器Ａ、Ｂは２つを例に挙げて説明していたが、これに限ったものではない。３つ以上のオーディオ機器が接続できるようにしてもよい。この場合、３つ以上のオーディオ機器の全部がＡＶＲＣＰ接続され、３つ以上のオーディオ機器のうち最新の再生要求を出力しているもののみがＡ２ＤＰ接続される。 Further, according to the above-described embodiment, the audio devices A and B connected to the navigation device 1 have been described by taking two examples, but the present invention is not limited to this. Three or more audio devices may be connected. In this case, all of the three or more audio devices are AVRCP connected, and only the one that outputs the latest reproduction request among the three or more audio devices is A2DP connected.
　また、上述した実施例によれば、ナビゲーション装置１は、オーディオ機器ＡのＡ２ＤＰ接続中に、オーディオ機器Ｂからの再生要求を受信すると、オーディオ機器ＡのＡ２ＤＰ接続を切断すると共に、オーディオ機器Ａから音楽データを受信中であればオーディオ機器Ａに対して停止命令を送信することにより、オーディオ機器ＡとのＡ２ＤＰ接続を制限していたが、これに限ったものではない。オーディオ機器Ａに対する停止命令の送信と、オーディオ機器ＡのＡ２ＤＰ接続の切断と、の何れか一方のみ行うようにしてもよい。また、オーディオ機器ＡとのＡ２ＤＰ接続の切断も停止命令の送信も行わずに、オーディオ機器Ａからの音楽データを受信しないようにしてもよい。 Further, according to the above-described embodiment, when the navigation apparatus 1 receives a reproduction request from the audio device B during the A2DP connection of the audio device A, the navigation device 1 disconnects the A2DP connection of the audio device A and from the audio device A. If music data is being received, the A2DP connection with the audio device A is limited by transmitting a stop command to the audio device A, but this is not restrictive. Only one of the stop command transmission to the audio device A and the disconnection of the A2DP connection of the audio device A may be performed. Further, the music data from the audio device A may not be received without disconnecting the A2DP connection with the audio device A and transmitting the stop command.
　また、上述した実施例によれば、ナビゲーション装置１は、オーディオ機器Ｂを再生要求の送信をトリガにしてＡ２ＤＰ接続していたが、これに限ったものではない。例えば、初めから全てのオーディオ機器Ａ、ＢとＡ２ＤＰ及びＡＶＲＣＰ接続をするようにしてもよい。この場合、音切れが発生させないようにするため、オーディオ機器Ａからの音楽データ受信中に、オーディオ機器Ｂからの再生要求を受信すると、オーディオ機器Ａに停止命令を送信して、オーディオ機器Ｂからの音楽データのみＡ２ＤＰで受信するようにしてもよい。 Further, according to the above-described embodiment, the navigation apparatus 1 is connected to the audio device B by A2DP triggered by transmission of a reproduction request, but the present invention is not limited to this. For example, all audio devices A and B may be connected to A2DP and AVRCP from the beginning. In this case, when a reproduction request is received from the audio device B during reception of music data from the audio device A, a stop command is transmitted to the audio device A so that the sound is not interrupted. Only music data of A2DP may be received.
　また、前述した実施例は本発明の代表的な形態を示したに過ぎず、本発明は、実施形態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。 Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.
　１　ナビゲーション装置（通信制御装置）
　２　システム制御部（通信制御部、出力制御部）
　４　音声出力装置（出力部）
　５　通信部（第一通信部、第二通信部）
　Ａ　オーディオ機器（通信相手装置）
　Ｂ　オーディオ機器（他の通信相手装置） 1 Navigation device (communication control device)
2 System controller (communication controller, output controller)
4. Audio output device (output unit)
5 communication units (first communication unit, second communication unit)
A Audio equipment (communication partner device)
B Audio equipment (other communication partner device)

Claims (8)

  1. 　第一通信方式によって通信相手装置と接続され、当該通信相手装置からコンテンツを受信する第一通信部と、
    　第二通信方式によって同時に複数の通信相手装置と接続可能であり、当該通信相手装置から制御指令を受信する第二通信部と、
    　前記第一通信部により受信した前記コンテンツを出力部に出力させるための制御を行う出力制御部と、
    　前記第一通信部を制御する通信制御部と、を備え、
    　前記第一通信部が通信相手装置と接続中に、前記第二通信部が他の通信相手装置からコンテンツ出力要求を示す制御指令を受信すると、前記通信制御部が、前記他の通信相手装置と前記第一通信部とを接続させると共に前記第一通信部に当該他の通信相手装置から送信されるコンテンツを受信させ、前記出力制御部が、当該受信した前記他の通信相手装置からのコンテンツを前記出力部に出力させると共に、接続中の前記通信相手装置からのコンテンツ出力中であれば当該コンテンツの出力を停止させる
    　ことを特徴とする通信制御装置。     A first communication unit that is connected to the communication partner device by the first communication method and receives content from the communication partner device;
    A second communication unit that can be simultaneously connected to a plurality of communication partner devices by the second communication method and receives a control command from the communication partner device;
    An output control unit that performs control for causing the output unit to output the content received by the first communication unit;
    A communication control unit for controlling the first communication unit,
    When the second communication unit receives a control command indicating a content output request from another communication partner device while the first communication unit is connected to the communication partner device, the communication control unit communicates with the other communication partner device. The first communication unit is connected to the first communication unit and content transmitted from the other communication partner device is received by the first communication unit, and the output control unit receives the received content from the other communication partner device. A communication control apparatus that outputs the content to the output unit and stops the output of the content if the content is being output from the communication partner apparatus being connected.
  2. 　請求項１に記載の通信制御装置において、
    　前記第一通信方式と前記第二通信方式とは、それぞれ近距離無線通信の通信プロファイルである
    　ことを特徴とする通信制御装置。     The communication control device according to claim 1,
    The first communication method and the second communication method are communication profiles for short-range wireless communication, respectively.
  3. 　請求項１又は２に記載の通信制御装置において、
    　前記通信制御部は、前記第一通信部が通信相手装置と接続中に、前記第二通信部が他の通信相手装置からコンテンツ出力要求を示す制御指令を受信すると、接続中の前記通信相手装置と前記第一通信部との接続を制限する
    　ことを特徴とする通信制御装置。     In the communication control device according to claim 1 or 2,
    When the second communication unit receives a control command indicating a content output request from another communication partner device while the first communication unit is connected to the communication partner device, the communication control unit is connected to the communication partner device. A communication control device that restricts connection between the first communication unit and the first communication unit.
  4. 　請求項１～３何れか１項に記載の通信制御装置において、
    　前記第二通信部が、前記通信相手装置及び前記他の通信相手装置に接続され、前記他の通信相手装置からコンテンツ出力要求を示す制御指令を受信しても、前記通信相手装置との接続は維持する
    　ことを特徴とする通信制御装置。     The communication control device according to any one of claims 1 to 3,
    Even if the second communication unit is connected to the communication partner device and the other communication partner device and receives a control command indicating a content output request from the other communication partner device, the connection with the communication partner device is not A communication control device characterized by maintaining.
  5. 　第一通信方式によって通信相手装置と接続され、当該通信相手装置からコンテンツを受信する第一通信部と、
    　第二通信方式によって同時に複数の通信相手装置と接続可能であり、当該通信相手装置から制御指令を受信する第二通信部と、
    　前記第一通信部により受信した前記コンテンツを出力部に出力させるための制御を行う出力制御部と、
    　前記第一通信部を制御する通信制御部と、を備え、
    　前記第二通信部は、複数の通信相手装置がある場合、全ての通信相手装置と接続され、
    　前記通信制御部は、前記複数の通信相手装置のうち最新のコンテンツ出力要求を示す制御指令を送信した１つから送信されるコンテンツのみ前記第一通信部に受信させる
    　ことを特徴とする通信制御装置。     A first communication unit that is connected to the communication partner device by the first communication method and receives content from the communication partner device;
    A second communication unit that can be simultaneously connected to a plurality of communication partner devices by the second communication method and receives a control command from the communication partner device;
    An output control unit that performs control for causing the output unit to output the content received by the first communication unit;
    A communication control unit for controlling the first communication unit,
    The second communication unit is connected to all communication partner devices when there are a plurality of communication partner devices,
    The communication control unit causes the first communication unit to receive only content transmitted from one of the plurality of communication partner devices that has transmitted a control command indicating the latest content output request. .
  6. 　通信相手装置と第一通信方式及び第二通信方式で接続し、第一通信方式によってコンテンツを受信すると共に、前記第二通信方式によって制御指令を受信し、当該受信した制御命令に従って、受信したコンテンツを出力する工程と、
    　他の通信相手装置と前記第二通信方式のみで接続し、前記他の通信相手装置から第二通信方式によって再生の要求を取得すると、前記通信相手装置のコンテンツの出力を停止する工程と、
    　前記他の通信相手装置から第二通信方式によって再生の要求を取得すると、前記通信相手装置との第一通信方式での接続を停止すると共に前記他の通信相手装置との第一通信方式での接続を行う工程と、
    　前記他の通信相手装置から受信したコンテンツを出力部に出力させる工程と、を含む
    　ことを特徴とする通信制御方法。     Connected to the communication partner device by the first communication method and the second communication method, receives the content by the first communication method, receives the control command by the second communication method, and receives the received content according to the received control command A process of outputting
    Connecting to another communication partner device only by the second communication method, and obtaining a reproduction request from the other communication partner device by the second communication method, stopping the output of the content of the communication partner device;
    When the reproduction request is acquired from the other communication partner device by the second communication method, the connection with the communication partner device is stopped in the first communication method and the first communication method with the other communication partner device is stopped. Connecting, and
    Outputting the content received from the other communication partner device to an output unit. A communication control method comprising:
  7. 　請求項６に記載の通信制御方法を、コンピュータにより実行させる
    　ことを特徴とする通信制御プログラム。     A communication control program that causes a computer to execute the communication control method according to claim 6.
  8. 　請求項７に記載の通信制御プログラムを格納した
    　ことを特徴とするコンピュータ読み取り可能な記録媒体。     A computer-readable recording medium, wherein the communication control program according to claim 7 is stored.
PCT/JP2014/058924 2014-03-27 2014-03-27 Communication control device WO2015145678A1 (en)

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Publication number Priority date Publication date Assignee Title
JP2018082305A (en) * 2016-11-16 2018-05-24 パイオニア株式会社 Electronic device, communication system, and communication method

Citations (2)

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JP2008278238A (en) * 2007-04-27 2008-11-13 Toshiba Corp Reproducing device and communicating method for the reproducing device
WO2012117452A1 (en) * 2011-03-03 2012-09-07 パイオニア株式会社 Electronic apparatus, speaker, communication system, communication control method of electronic apparatus and program

Patent Citations (2)

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JP2008278238A (en) * 2007-04-27 2008-11-13 Toshiba Corp Reproducing device and communicating method for the reproducing device
WO2012117452A1 (en) * 2011-03-03 2012-09-07 パイオニア株式会社 Electronic apparatus, speaker, communication system, communication control method of electronic apparatus and program

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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