JP2017175372A - Communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication device that can reduce operation by a user.SOLUTION: An on-vehicle device 1 connects with a plurality of smart apparatuses 21-23 by Wi-Fi communication. The smart apparatuses 21-23 transmits information such as song titles of retained content to the on-vehicle device 1. Upon receiving the information such as song titles of content, the on-vehicle device 1 creates and displays an integrated play list. If the on-vehicle device 1 determines that content of the smart apparatus 22 not connected by BT is selected, it disconnects connection with the smart apparatus 21 connected by BT, and then connects with the smart apparatus 22.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication device, a communication method, and a communication program.

  Conventionally, an audio device that reproduces music data held by a plurality of portable terminals is known (Patent Document 1). This audio device receives a song name and terminal ID of music data from a plurality of portable terminals, and creates a list thereof. The acoustic device transmits the created list to a plurality of portable terminals. The mobile terminal displays the transmitted list. When the user selects one song name from the displayed list, the mobile terminal transmits a reproduction request for the selected song name to the audio device. The audio device requests the portable terminal having the terminal ID corresponding to the selected song name to transmit the music data of the song name. In response to this, the audio device reproduces the received music data.

  The acoustic device described above is based on the premise that one-to-multiple terminals can be connected and music data can be received. For example, Wi-Fi can connect one-to-multiple terminals and is widespread, but must receive a standard called DLNA (registered trademark) in order to receive music data. As an audio device that can receive music data, a device that can only be connected one-to-one, such as Bluetooth (registered trademark), is mainstream.

  When attempting to reproduce music data held by a plurality of terminals with an audio device that can only be connected in a one-to-one connection, the mobile terminal and the audio device that are selected and operated after disconnecting the currently connected mobile terminal and the audio device Connection operation is performed. After the song name has been selected, it is necessary to disconnect the portable terminal that has been selected and the acoustic device, and then perform a connection operation between the portable terminal that holds the music data and the acoustic device. The problem that there are many operations is an example.

JP 2008-21337 A

  This invention makes it an example of a subject to cope with such a problem. That is, an object of the present invention is to provide a communication device that can reduce, for example, user operations.

  In order to solve the above-described problem, the communication device according to claim 1 is connectable to one device among a plurality of devices, and includes a first communication unit that acquires content held by the device; Of the content identification information acquired by the second communication means that can be connected simultaneously with a plurality of devices and that acquires the content identification information held by the devices, the first communication A connection control unit that determines that the identification information of the content held by one device that has not been connected by the unit has been selected, and establishes a connection between the one device and the first communication unit. It is characterized by that.

  The communication method according to claim 6 is a communication method that controls a first communication unit that is connectable to one of a number of devices and acquires content held by the device, Of the content identification information held by the device acquired by the second communication means that can be connected simultaneously with the other device, the content held by one device that has not been connected by the first communication means It is characterized by determining that identification information has been selected, and establishing a connection between the one device and the first communication means.

It is a figure which shows an example of the vehicle equipment as a communication apparatus of this invention. It is a block diagram for demonstrating the structure of the vehicle equipment shown in FIG. It is a flowchart which shows the integrated playlist creation process procedure which the vehicle equipment shown in FIG. 1 performs. It is a figure which shows the integrated playlist which the vehicle equipment shown in FIG. 1 produces. It is a flowchart which shows the reproduction | regeneration processing procedure which the vehicle equipment and smart device shown in FIG. 1 perform. It is a flowchart which shows the reproduction | regeneration processing procedure which the vehicle equipment and smart device shown in FIG. 1 perform.

  Hereinafter, a communication apparatus according to an embodiment of the present invention will be described. The communication apparatus according to an embodiment of the present invention can be connected to one of a plurality of devices, and can be connected simultaneously to the first communication means for acquiring content held in the device and the plurality of devices. Among the second communication means for acquiring the content identification information held by the device and the content identification information acquired by the second communication means, the connection is not established by the first communication means. A connection control unit that determines that the identification information of the content held by the first device is selected and establishes a connection between the first device and the first communication unit. As a result, when content held by one device that has not been connected by the first communication unit is selected, the connection control unit automatically sets the connection control unit even if the user does not perform a connection operation with the one device. Establish a connection between the device and the first communication means. Therefore, user operations can be reduced. In addition, the second communication unit acquires the identification information of the content held by the device from a plurality of devices. Thereby, content identification information can be easily obtained from a plurality of devices.

  Moreover, you may make it have a display means to display the identification information of the content which several apparatuses hold | maintain. Thereby, the user can easily select content held by a plurality of devices.

  The second communication unit acquires device identification information for identifying the device from a plurality of devices, and the connection control unit holds the device identification information of the device connected by the first communication unit and the selected content. If the device identification information does not match, it may be determined that the identification information of the content held by one device that has not been connected by the first communication means is selected. Thereby, it can be easily determined by comparing the device identification information that the content held by one device that has not been connected by the first communication means is selected.

  Further, the connection control means determines that the identification information of the content held by the one device that has not been connected by the first communication means is selected, and the connection with the first communication means is established. You may make it establish the connection of one apparatus and a 1st communication means after cut | disconnecting a connection with another apparatus. Thereby, even if the user does not perform a disconnection operation with another device, the connection control means automatically disconnects the connection between the other device and the first communication means. Therefore, the user's operation can be further reduced.

  Further, the display means may display the identification information of the content held by a plurality of devices in one list. This makes it easier for the user to select content.

  A communication method according to an embodiment of the present invention is a communication method that controls a first communication unit that is connectable to one of a plurality of devices and acquires content held by the device. Of the content identification information held by the device acquired by the second communication means that can be connected simultaneously with a plurality of devices, the content held by one device that has not been connected by the first communication means Determining that the identification information is selected, and establishing a connection between the first device and the first communication means. As a result, when content held by one device that has not been connected by the first communication unit is selected, the connection control unit automatically sets the connection control unit even if the user does not perform a connection operation with the one device. Establish a connection between the device and the first communication means. Therefore, user operations can be reduced. In addition, the second communication unit acquires the identification information of the content held by the device from a plurality of devices. Thereby, content identification information can be easily obtained from a plurality of devices.

  Moreover, it is good also as a communication program which performs the communication method mentioned above by computer. 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.

  Next, the communication apparatus, communication method, and communication program described above will be described below with reference to FIG. FIG. 1 is a block diagram showing an example of an in-vehicle device as a communication device of the present invention. An in-vehicle device 1 shown in FIG. 1 is composed of, for example, an in-vehicle device mounted on a vehicle, and has a navigation function for guiding a route to a destination.

  In the present embodiment, the in-vehicle device 1 can be wirelessly connected to a plurality of smart devices 21 to 23 (= a plurality of devices) such as a smart phone and a tablet. Note that any of the plurality of smart devices 21 to 23 may be simply referred to as a smart device 2. The in-vehicle device 1 according to the present embodiment has a list creation function for creating an integrated playlist of contents such as music data held in all the smart devices 21, 22, and 23 that are wirelessly connected. Furthermore, the in-vehicle device 1 of the present embodiment has a content reproduction function for reproducing content selected from the created integrated playlist.

  The in-vehicle device 1 includes a control unit 3 as a connection control unit that controls the entire apparatus, a display device 4 as a display unit, an audio output unit 5, a BT communication unit 6 as a first communication unit, 2 includes a Wi-Fi communication unit 7 as a communication unit, an input unit 8, and a recording unit 9 as a recording unit, which are connected by a bus 12. The control unit 3 is configured by a CPU (Central Processing Unit) including a memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory). The CPU of the control unit 3 operates according to a communication program recorded in the ROM.

  The display device 4 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 unit 5 includes, for example, a DAC (digital / analog signal converter), an amplifier, a speaker, and the like. The music data output from the control unit 3 is D / A converted by the DAC and then amplified by the amplifier. Output as sound waves from the speaker.

  The BT communication unit 6 includes a BT (Bluetooth (registered trademark)) module, and can be wirelessly connected to the smart devices 21, 22, and 23. In this embodiment, the BT communication unit 6 can establish a one-to-one connection, but cannot establish a one-to-many connection. The BT communication unit 6 can establish a connection with only one of the plurality of smart devices 21, 22, and 23, and can acquire content held in the established connection.

  The Wi-Fi communication unit 7 includes a Wi-Fi module, and can be wirelessly connected to a plurality of smart devices 21, 22, and 23 simultaneously. In this embodiment, the Wi-Fi communication unit 7 is a communication unit that can be connected in a one-to-many manner and cannot acquire content held by the smart devices 21, 22, and 23, but the song name, artist name, and album name of the content (Hereinafter sometimes abbreviated as “content identification information”) or “content identification information”.

  The input unit 8 includes operation buttons, a touch panel provided on the display device 4, and the like, and performs a content selection operation, a destination input operation, and the like.

  The recording unit 9 records an integrated playlist, which will be described later.

  The vehicle-mounted device 1 further includes a GPS receiving unit 10 for receiving position information and a map DB (database) 11 and is connected by a bus 12 in order to realize a navigation function. Since this navigation function is general, a detailed description thereof is omitted here.

  Next, the operation in the integrated playlist creation function of the vehicle-mounted device 1 having the above-described configuration will be described with reference to the flowchart of FIG.

  The control unit 3 of the in-vehicle device 1 (hereinafter sometimes abbreviated as “in-vehicle device”) controls the BT communication unit 6 and establishes a connection with one device capable of BT connection by a known procedure. To do. In the example illustrated in FIG. 1, the in-vehicle device 1 is connected to one smart device 21 among the three smart devices 21, 22, and 23. The smart device 21 is, for example, a device that is first selected by the user among the three smart devices 21, 22, and 23 in the BT connection area. Further, the in-vehicle device 1 controls the Wi-Fi communication unit 7 by a well-known procedure to connect to a device capable of Wi-Fi connection. In the example illustrated in FIG. 1, the in-vehicle device 1 is connected to three smart devices 21, 22, and 23 via Wi-Fi.

  Thereafter, the in-vehicle device 1 performs an integrated playlist creation process shown in FIG. First, the in-vehicle device 1 checks whether or not there is a smart device 2 connected to the Wi-Fi communication unit 7 (step S1). This check is performed when the vehicle-mounted device 1 is turned on, when the smart device 2 is connected via Wi-Fi, or when the user performs an operation for creating an integrated playlist.

  Next, the in-vehicle device 1 controls the Wi-Fi communication unit 7 to make a transmission request for content identification information to the smart device 2 connected via Wi-Fi (step S2). In response to this transmission request, each smart device 2 transmits content identification information and its own device identification information such as Bluetooth (registered trademark) Device Address (hereinafter referred to as BD_ADDR) by Wi-Fi communication. When the Wi-Fi communication unit 7 receives (acquires) the content identification information and BD_ADDR from each smart device 2, the in-vehicle device 1 associates the content identification information with the BD_ADDR and records them in the recording unit 9. (Step S4).

  Thereafter, the in-vehicle device 1 creates an integrated playlist and records it in the recording unit 9 (step S5). As shown in FIG. 4, the integrated playlist is a list of song names and the like of content held by a plurality of smart devices 2 that are performing Wi-Fi communication. In the integrated playlist shown in FIG. 4, BD_ADDR is added in addition to the music title of the content, but BD_ADDR need not be added.

  Thereafter, the in-vehicle device 1 controls the Wi-Fi communication unit 7 to transmit the created integrated playlist and its own BD_ADDR to the smart device 2 (step S6). The in-vehicle device 1 displays the integrated playlist created in step S5 on the display device 4 (step S7), and ends the process. The smart device 2 displays the received integrated playlist and holds the BD_ADDR of the in-vehicle device 1 in a recording unit (not shown).

  Next, an outline of the operation in the playback function of the integrated playlist of the in-vehicle device 1 having the above-described configuration will be described.

  Now, as shown in FIG. 1, the case where the smart devices 21, 22, and 23 are Wi-Fi connected to the in-vehicle device 1 and only the smart device 21 is BT-connected to the in-vehicle device 1 will be described. The smart device 21 holds contents C1 and C2, and holds “11: 22: 33: 44: 55: 66” as BD_ADDR. The smart device 22 holds contents C3 and C5, and holds “AA: BB: CC: DD: EE: FF” as BD_ADDR. The smart device 23 holds contents C4 and C6, and holds “00: 00: 00: 00: 00” as BD_ADDR. In the in-vehicle device 1, “99: 99: 99: 99: 99: 99” is held as BD_ADDR.

  Consider a case where the content C3 is selected from the integrated playlist displayed on the smart devices 21, 22, 23 and the in-vehicle device 1. For example, the user can perform a content selection operation by touching a display unit (not shown) of the smart devices 21, 22, and 23 on which the integrated playlist is displayed or the display device 4 of the in-vehicle device 1. When the selection operation is performed using the smart devices 21, 22, and 23, the selection operation information is transmitted from the smart devices 21, 22, and 23 to the in-vehicle device 1 through Wi-Fi communication.

  The in-vehicle device 1 confirms BD_ADDR (AA: BB: CC: DD: EE: FF) corresponding to the song name of the selected content C3 based on the recording of the recording unit 9. Next, the vehicle-mounted device 1 collates with the BD_ADDR (11: 22: 33: 44: 55: 66) of the smart device 21 that is connected to the BT. If the BD_ADDR does not match, the in-vehicle device 1 functions as a connection control unit, determines that the content held by the smart device 22 that has not been connected by the BT communication unit 6 has been selected, and the smart device 21 ( Disconnect the BT connection with the other device. Thereafter, the in-vehicle device 1 controls the BT communication unit 6 to make a BT connection with the smart device 22 (one device), and makes a transmission request for the content C3 to the smart device 22. When the in-vehicle device 1 receives the content C3 from the smart device 22, the in-vehicle device 1 reproduces the content C3.

  The details of the operation in the playback function of the integrated playlist of the in-vehicle device 1 having the configuration described above will be described with reference to FIGS. When the integrated playlist creation process ends, the in-vehicle device 1 performs the reproduction process illustrated in FIGS. 5 and 6. When the content is selected using the smart device 2 or the input unit 8 of the in-vehicle device 1 (step S10), the in-vehicle device 1 is connected to the content identification information selected from the recording unit 9 by the BD_ADDR. “A” is confirmed (step S11). Next, if the BT connection has already been made (Y in step S12), the in-vehicle device 1 determines whether or not the BD_ADDR “B” of the smart device 2 that is in the BT connection matches the confirmed BD_ADDR “A”. Determination is made (step S13). If they match (Y in step S13), the in-vehicle device 1 makes a transmission request for the selected content to the smart device 2 that is connected to the BT, and reproduces the content transmitted along with this (step S25).

  On the other hand, if they do not match (N in step S13), the in-vehicle device 1 causes the display device 4 to display "Can I disconnect from the connected smart device?" If “No” is selected (N in Step S14), the in-vehicle device 1 is immediately terminated without disconnecting the BT connection with the connected smart device 2, and the selected content is not reproduced. .

  If “Yes” is selected, the in-vehicle device 1 disconnects the BT connection with the smart device 2 of BD_ADDR “B” (Y in step S14). Thereafter, the in-vehicle device 1 controls the Wi-Fi communication unit 7 to transmit a connection request flag to the smart device 2 with BD_ADDR “A” (step S15). If no BT connection is established with any smart device 2 (N in step S12), the in-vehicle device 1 proceeds to step S15. In step S15, the vehicle-mounted device 1 controls the Wi-Fi communication unit 7 and immediately transmits a connection request flag to the smart device 2 with BD_ADDR “A” (step S15).

  When receiving the connection request flag addressed to itself (step S30), the smart device 2 determines whether or not a BT connection is being established with a terminal other than the in-vehicle device 1 (for example, headphones) (Y in step S31). If the BT connection is being made (Y in step S31), the smart device 2 displays "Can I disconnect from the connected terminal" on a display screen (not shown). At this time, if “No” is selected (N in Step S32), the smart device 2 transmits a flag that cannot be transmitted by Wi-Fi communication to the in-vehicle device 1 (Step S40).

  On the other hand, if “Yes” is selected, the smart device 2 disconnects the BT connection (Y in step S32), and then transmits a response flag by Wi-Fi communication (step S33). Thereafter, the smart device 2 confirms the stored BD_ADDR “C” of the in-vehicle device 1 (step S34). Next, the smart device 2 checks whether there is C in the pairing history (step S35). If there is C in the pairing history (Y in step S35), the smart device 2 waits for connection without performing pairing (Y in step S36).

  On the other hand, when the response flag from the smart device 2 is received (step S16), the in-vehicle device 1 confirms whether or not BD_ADDR “A” exists in the pairing history (step S17). If it is confirmed that the smart device 2 has C in the pairing history (Y in step S35), the in-vehicle device 1 is also confirmed to have A in the pairing history (Y in step S17). If there is A in the pairing history (Y in step S17), the in-vehicle device 1 performs BT connection to the smart device 2 of BD_ADDR “A”. When the BT connection is completed (Y in step S19), the in-vehicle device 1 makes a transmission request for the selected content to the smart device 2 of BD_ADDR “A”, and reproduces the content transmitted along with this request (step S25). ).

  On the other hand, if there is no C in the pairing history (N in step S35), the smart device 2 automatically enters the pairing mode, and becomes a discoverable state by issuing, for example, BD_ADDR by BT communication (step S37). In this case, it is determined that there is no A in the pairing history even in the in-vehicle device 1 (N in step S17), and automatically enters the pairing mode and scans the smart device 2 outputting BD_ADDR (step S20). .

  When the smart device 2 that outputs BD_ADDR is found (Y in step S20), the in-vehicle device 1 determines whether or not the BD_ADDR of the smart device 2 matches A (step S21). If they match (Y in step S21), the in-vehicle device 1 transmits a pairing request to the smart device 2 of BD_ADDR “A”, and performs pairing such as ID exchange / registration (step S22). When the pairing is completed (Y in step S23), the in-vehicle device 1 proceeds to step S25 and reproduces the selected content.

  On the other hand, when receiving the pairing request from the in-vehicle device 1, the smart device 2 similarly performs pairing such as ID exchange / registration (step S38). When pairing is completed (step S39), the smart device 2 ends the process.

  The in-vehicle device 1 can be found when the connection with the smart device 2 with the BD_ADDR “A” is not completed even after a predetermined time has elapsed (step S19), or the smart device 2 cannot be found (N in step S20). Even if BD_ADDR does not match A (N in step S21), or pairing is not completed even after a predetermined time has elapsed (step S23), the smart device 2 of BD_ADDR “B” that has disconnected the BT connection And BT connection again (step 24), the process is terminated.

  In addition, the smart device 2 sets a flag that cannot be connected by Wi-Fi communication when the BT connection cannot be established with the in-vehicle device 1 even after a predetermined time has elapsed (N in step S36) or the pairing is not completed (step S39). It transmits to the vehicle equipment 1 (step S40), and a process is complete | finished. When the in-vehicle device 1 receives the flag that cannot be transmitted, the in-vehicle device 1 stops the current processing and immediately proceeds to step S24 to make BT connection again with the smart device 2 of BD_ADDR “B”.

  According to the embodiment described above, the BT communication unit 6 establishes a connection with only one of the plurality of smart devices 21, 22, and 23, and acquires the content held by the one. In the recording unit 9, content identification information held by the plurality of smart devices 21, 22, and 23 is recorded. When the control unit 3 determines that the content identification information held by the smart device 22 in which the BT connection is not established is selected from the content identification information recorded in the recording unit 9, the smart device 22 and the BT communication unit 6 is established. As a result, when the content held by the smart device 22 to which the connection is not established in the BT communication unit 6 is selected, the control unit 3 is automatically smart even if the user does not perform a connection operation with the smart device 22. A connection between the device 22 and the BT communication unit 6 is established. Therefore, user operations can be reduced.

  Further, according to the above-described embodiment, the display device 4 displays the titles of the contents held by the plurality of smart devices 21, 22, and 23 as an integrated playlist. Thereby, the user can easily select content held by the plurality of smart devices 21, 22, and 23.

  Further, according to the above-described embodiment, the Wi-Fi communication unit 7 can be connected simultaneously with the plurality of smart devices 21, 22, 23, and the smart devices 21, 22, 23 can be connected to the smart devices 21, 22, 23. , 23 is acquired. As a result, content identification information can be easily obtained from the plurality of smart devices 21, 22, and 23.

  Further, according to the above-described embodiment, the Wi-Fi communication unit 7 acquires BD_ADDR that identifies a device from the plurality of smart devices 21, 22, and 23, and the control unit 3 is connected by the BT communication unit 6. If the BD_ADDR of the smart device 2 and the BD_ADDR of the smart device 2 that holds the selected content do not match, the content held by the smart device 2 that has not been connected by the BT communication unit 6 has been selected. Judging. Thereby, it can be easily determined by comparing the BD_ADDR that the content held by the smart device 2 to which the connection is not established by the BT communication unit 6 has been selected.

  Further, according to the above-described embodiment, the control unit 3 determines that the content held by the smart device 22 that has not been connected by the BT communication unit 6 is selected, and connects to the BT communication unit 6. After disconnecting the connection with the smart device 21 for which the smart device 22 is established, the connection between the smart device 22 and the BT communication unit 6 may be established. As a result, the control unit 3 automatically disconnects the connection between the smart device 21 and the BT communication unit 6 without the user performing a disconnection operation with the smart device 21. Therefore, the user's operation can be further reduced.

  The display device 4 displays content identification information held by the plurality of smart devices 21 to 23 in one list. This makes it easier for the user to select content.

  According to the above-described embodiment, the integrated playlist is displayed on both the in-vehicle device 1 and the smart device 2 so that the content can be selected from both. However, the present invention is not limited to this. The integrated playlist may be displayed on only one of the in-vehicle device 1 and the smart device 2, and the content may be selected using only one of them.

  Further, according to the above-described embodiment, content identification information is transmitted from the smart device 2 to the vehicle-mounted device 1 using Wi-Fi communication, but the present invention is not limited to this. Any other communication that can be connected in a one-to-many manner may be used. Further, for example, content identification information may be transmitted from the smart device 2 to the in-vehicle device 1 using BT communication. In this case, the in-vehicle device 1 performs a BT scan in advance before connection with the smart device 2. At this time, in addition to BD_ADDR, content identification information may be transmitted to the smart device 2 so as to be in a discoverable state. It is also conceivable that the in-vehicle device 1 is connected to a plurality of smart devices 2 in order by time-sharing BT communication and content identification information is transmitted.

  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 In-vehicle device (communication device)
2 Smart equipment (equipment)
3 Control unit (connection control means)
4. Display device (display means)
6 BT communication unit (first communication means)
7 Wi-Fi communication section (second communication means)
9 Recording section (recording means)
21 Smart devices (equipment)
22 Smart equipment (equipment)
23 Smart devices

Claims (7)

A first communication unit that is connectable to one of a plurality of devices and acquires content held by the device;
A second communication unit that is connectable simultaneously with the plurality of devices and obtains identification information of content held by the devices;
Of the content identification information acquired by the second communication means, it is determined that the content identification information held by one device not connected by the first communication means is selected, and the one And a connection control means for establishing a connection between the device and the first communication means. The communication apparatus according to claim 1, further comprising display means for displaying identification information of content held by the plurality of devices. The second communication means acquires device identification information for identifying a device from the plurality of devices,
The connection control means establishes a connection with the first communication means when the device identification information of the equipment connected with the first communication means does not match the device identification information holding the selected content. The communication apparatus according to claim 2, wherein it is determined that the identification information of the content held by one device that has not been selected is selected. The connection control means determines that the identification information of the content held by one device that is not connected by the first communication means is selected, and the connection with the first communication means is established. The communication apparatus according to any one of claims 1 to 3, wherein a connection between the one device and the first communication unit is established after disconnecting the connection with another device. The communication device according to claim 2, wherein the display unit displays the identification information of the content held by a plurality of devices in one list. A communication method that controls a first communication means that can be connected to one of a plurality of devices and acquires content held by the device,
Of the content identification information held by the device acquired by the second communication means that can be connected simultaneously with the plurality of devices, held by one device that has not been connected by the first communication means A communication method comprising determining that content identification information has been selected and establishing a connection between the one device and the first communication means. A communication program that causes a computer to execute the communication method according to claim 6.

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