WO2017081871A1 - Terminal device and device selection method - Google Patents

Terminal device and device selection method Download PDF

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Publication number
WO2017081871A1
WO2017081871A1 PCT/JP2016/004866 JP2016004866W WO2017081871A1 WO 2017081871 A1 WO2017081871 A1 WO 2017081871A1 JP 2016004866 W JP2016004866 W JP 2016004866W WO 2017081871 A1 WO2017081871 A1 WO 2017081871A1
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WIPO (PCT)
Prior art keywords
wireless communication
terminal device
display
control unit
communication unit
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PCT/JP2016/004866
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French (fr)
Japanese (ja)
Inventor
拓真 足立
松永　繁樹
貴 石崎
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パナソニックＩｐマネジメント株式会社
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Publication of WO2017081871A1 publication Critical patent/WO2017081871A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • 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
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04W4/04—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • 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

  • This disclosure relates to a terminal device and a device selection method.
  • Patent Document 1 discloses a mobile device in which a user can select one of a plurality of monitors mounted on a vehicle and transfer and reproduce data of a mobile device such as a portable player brought into the vehicle. Disclosed is a multiple monitor selective transfer system for device data. Thereby, when there are a plurality of monitors in the vehicle and the mobile device is brought into the vehicle, an image of the mobile device can be easily displayed on a predetermined monitor.
  • the terminal device is a terminal device that identifies a device to be linked from a plurality of devices, and includes a first wireless communication unit, a second wireless communication unit, and a control unit.
  • the first wireless communication unit performs first wireless communication capable of measuring the radio field intensity of the received signal.
  • the second wireless communication unit performs second wireless communication capable of transmitting and receiving a device search signal.
  • the control unit determines a device to be linked based on the radio wave intensity of the signal received from the plurality of devices using the first wireless communication and the device information obtained as a result of the device search using the second wireless communication. Identify.
  • the device selection method in the present disclosure is a device selection method for specifying a device to be linked from a plurality of devices.
  • the device selection method includes a step of measuring radio field intensity of signals received from a plurality of devices using first wireless communication, a step of transmitting and receiving a device search signal using second wireless communication, Identifying a device to be linked based on the radio field intensity of the signal received using the first wireless communication and the device information obtained as a result of the device search using the second wireless communication.
  • the selection operation is unnecessary because the device that performs the linking operation with the terminal device is automatically selected.
  • FIG. 1 is a diagram illustrating an example of a vehicle according to the first embodiment of the present disclosure.
  • FIG. 2 is a block diagram illustrating a configuration example of the display according to the first embodiment of the present disclosure.
  • FIG. 3 is a block diagram illustrating a configuration example of the terminal device according to the first embodiment of the present disclosure.
  • FIG. 4 is a flowchart for describing a device selection processing procedure according to the first embodiment of the present disclosure.
  • FIG. 5 is a diagram illustrating a configuration example of an advertisement packet.
  • FIG. 6 is a diagram illustrating an example of radio wave intensity in BLE communication.
  • FIG. 7 is a sequence diagram illustrating a device selection processing operation according to the first embodiment of the present disclosure.
  • FIG. 8 is a diagram for describing an operation example of the first embodiment of the present disclosure.
  • Embodiment 1 will be described by taking as an example a case where a terminal device brought into a vehicle selects one of a plurality of displays installed in the vehicle.
  • FIG. 1 is a diagram illustrating an outline of a vehicle according to the first embodiment of the present disclosure.
  • the vehicle 100 includes a front seat 201, a front seat 202, a rear seat 203, and displays 301 to 304.
  • the display 301 and the display 302 are installed in the vicinity of the front seat 201 and the front seat 202, respectively.
  • the display 303 and the display 304 are installed on the back of the front seat 201 and the front seat 202, respectively.
  • Each display is assumed to be connected by WiFi communication.
  • FIG. 1 shows the case where two displays are installed in the front seat and two in the rear seat, the number of displays is not limited to four. Similarly, the number of seats is not limited to that shown in FIG.
  • FIG. 1 shows a case where the terminal device 400 is brought into the rear seat 203 behind the front seat 202.
  • the terminal device 400 is a device that performs an linking operation with any of the displays 301 to 304, and is, for example, a smartphone.
  • the terminal device 400 may be a portable terminal device such as a mobile phone, a PDA (Personal Digital Assistant), or a notebook personal computer.
  • the display device closest to the terminal device 400 is automatically selected as the cooperation device that operates in cooperation with the terminal device 400.
  • WiFi and Ethernet used for inter-device communication cannot measure the distance between devices.
  • BLE communication Bluetooth (registered trademark) Low Energy
  • BLE communication can detect the entry and exit of devices in a narrow area with high accuracy, and can measure the approximate distance from the radio wave intensity of the signal to be communicated. Is possible. Therefore, in the present disclosure, a device is discovered and a distance between devices is measured using a beacon signal called an advertisement packet of BLE communication.
  • the terminal device 400 receives signals transmitted from the displays 301 to 304 through BLE communication, and selects linked devices based on the radio field intensity of the received signals.
  • BLE communication since BLE communication operates with low power consumption, it can communicate very little data. Therefore, in BLE communication, it is difficult to perform a linkage operation such as transmitting data of the terminal device 400 to a selected display. Therefore, in the present disclosure, after the display is selected, the terminal device 400 and the selected display communicate with each other using WiFi communication.
  • the displays 301 to 304 and the terminal device 400 according to the present disclosure operate by switching between BLE communication corresponding to the first wireless communication and WiFi communication corresponding to the second wireless communication.
  • FIG. 2 is a block diagram illustrating a configuration example of the display according to the first embodiment of the present disclosure.
  • the displays 301 to 304 have the same configuration
  • FIG. 3 shows the configuration of the display 301 as an example.
  • the display 301 includes a control unit 311, a first wireless communication unit 312, a memory 313, a second wireless communication unit 314, a display control unit 315, and a display unit 316.
  • the control unit 311 includes, for example, a nonvolatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, an input / output port, and a processor that executes the program.
  • the control unit 311 performs communication control using the first wireless communication unit 312 and the second wireless communication unit 314, selection of a display that performs a cooperative operation, display control of the display control unit 315, and the like.
  • the first wireless communication unit 312 is a communication interface that performs BLE communication capable of measuring the radio field intensity of a received signal.
  • the first wireless communication unit 312 periodically transmits an advertisement packet that is a broadcast signal of BLE communication.
  • the memory 313 is used to store a device ID that can uniquely identify the work memory and display of the control unit 311.
  • the memory 313 includes a volatile memory such as a DRAM (Dynamic Random Access Memory) and a nonvolatile memory such as a flash memory.
  • the second wireless communication unit 314 is a communication interface that performs WiFi communication capable of transmitting and receiving a device search signal.
  • the second wireless communication unit 314 receives control information transmitted from the terminal device 400 and transmits a response to the control signal to the terminal device 400.
  • the display control unit 315 controls information displayed on the display unit 316 and a display method.
  • the display unit 316 is a display output device having a display screen such as an LCD (Liquid Crystal Display).
  • LCD Liquid Crystal Display
  • FIG. 3 is a block diagram illustrating a configuration example of the terminal device according to the first embodiment of the present disclosure.
  • the terminal device 400 includes a control unit 401, a first wireless communication unit 402, a memory 403, a second wireless communication unit 404, and a display unit 405.
  • the control unit 401 includes, for example, a nonvolatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, an input / output port, and a processor that executes the program.
  • the control unit 401 measures the radio field intensity of the signals received from the displays 301 to 304 via the first wireless communication unit 402, and selects a display that operates in cooperation based on the measured radio field intensity.
  • the control unit 401 communicates with the selected display via the second wireless communication unit 404 and performs a linkage operation.
  • the first wireless communication unit 402 is a communication interface that performs BLE communication.
  • the first wireless communication unit 402 receives advertisement packets transmitted from the displays 301 to 304.
  • the memory 403 associates the radio field intensity of the signal received via the work memory of the control unit 401 or the first wireless communication unit 402 with the device ID that uniquely indicates the display included in the received signal, and the radio field intensity list. Used to store as The memory 403 is used to store the device ID included in the device information packet received by the control unit 401 via the second wireless communication unit 404 as a device ID list.
  • the memory 403 includes a volatile memory such as a DRAM and a nonvolatile memory such as a flash memory.
  • the second wireless communication unit 404 is a communication interface that performs WiFi communication capable of transmitting and receiving a device search signal.
  • the second wireless communication unit 404 transmits a control signal to the displays 301 to 304 and receives responses from the displays 301 to 304.
  • the display unit 405 is a display output device having a display screen such as an LCD.
  • the display unit 405 includes a touch panel and also serves as an operation unit.
  • FIG. 4 is a flowchart for describing a device selection processing procedure according to the first embodiment of the present disclosure.
  • Step S401 The control unit 401 of the terminal device 400 receives the advertisement packet transmitted from each of the first wireless communication units 312 of the displays 301 to 304 via the first wireless communication unit 402.
  • Fig. 5 shows an example of the structure of an advertising packet.
  • the displays 301 to 304 store a device ID 511 for identifying a display in a PUD (Protocol Data Unit) payload 501 of the advertisement packet 500.
  • PUD Protocol Data Unit
  • Step S402 The control unit 401 measures the radio field intensity of the received advertisement packet 500.
  • the control unit 401 stores, in the memory 403, a radio wave intensity list in which the device ID 511 stored in the received advertisement packet 500 is associated with the measured radio wave intensity.
  • Steps S401 and S402 are performed every time the advertisement packet 500 is received.
  • the control unit 401 registers or updates a set of the device ID 511 and the radio wave intensity stored in the received advertisement packet 500 in the radio wave intensity list as needed.
  • Step S403 The control unit 401 searches for devices in the vehicle 100 using the UPnP (Universal Plug and Play) SSDP (Simple Service Discovery Protocol) via the second wireless communication unit 404. That is, the control unit 401 searches the displays 301 to 304 via the second wireless communication unit 404.
  • the control unit 401 transmits a device search packet using multicast.
  • the device search packet is one of device search signals.
  • Step S404 The control unit 401 receives the device information packet transmitted from the second wireless communication unit 314 of the device (displays 301 to 304) responding to the device search packet.
  • the device information packet is one of device search signals.
  • the control unit 401 extracts the device ID stored in the received device information packet and registers it in the device ID list. This operation is performed every time a device information packet is received.
  • the control unit 401 registers or updates the searched device ID at any time in the device ID list.
  • Step S405 The control unit 401 selects a linked device for each preset period using the device ID list and the radio wave intensity list stored in the memory 403.
  • the control unit 401 extracts a device ID registered in both the device ID list and the radio wave intensity list.
  • the control unit 401 selects a device having a device ID with the highest radio wave intensity among the extracted device IDs as a linked device. As a result, one of the displays 301 to 304 is selected as the cooperation device.
  • FIG. 6 is a diagram for explaining the radio wave intensity in BLE communication.
  • the antenna position P indicates the antenna position of the first wireless communication unit 402 of the terminal device 400
  • the antenna positions P1 to P4 indicate the antenna positions of the first wireless communication unit 312 of the displays 301 to 304.
  • concentric circles L1, L2, L3, and L4 with respect to the antenna position P indicate a radio field intensity range with respect to the antenna position P.
  • the radio field intensity of the concentric circle L1 is F1
  • the radio field intensity of the concentric circle L2 is F2
  • the radio field intensity of the concentric circle L3 is F3
  • the radio field intensity of the concentric circle L4 is F4
  • the relationship is F1> F2> F3> F4.
  • the radio wave intensity of the signal transmitted from the display 304 installed at the position closest to the terminal device 400 is the strongest, and the radio wave intensity of the signals received in the order of the display 303, the display 302, and the display 301 becomes weaker. .
  • the control unit 401 of the terminal device 400 selects the display having the device ID with the strongest radio field intensity as the cooperation device.
  • the control unit 401 does not perform device cooperation processing when a device ID that matches the radio wave intensity list and the device ID list is not found. At this time, the control unit 401 may notify the terminal device 400 that there is no linked device.
  • step S401 and S402 may be reversed. That is, step S401 and step S402 may be executed after step S403 and step S404.
  • FIG. 7 is a sequence diagram illustrating a device selection processing operation according to the present disclosure.
  • WiFi communication is possible within vehicle 100.
  • Step S701 When the vehicle 100 is in an ignition-on state, the displays 301 to 304 are in a power-on state.
  • the displays 301 to 304 are connected to the wireless LAN in the vehicle 100 via the second wireless communication unit 314.
  • Step S702 The control unit 311 of the displays 301 to 304 reads the device ID from the memory 313, and causes the first wireless communication unit 312 to periodically broadcast an advertisement packet storing the device ID.
  • the displays 301 to 304 each store their own device IDs ID01 to ID04 in an advertisement packet and transmit them.
  • ID01 to ID04 correspond to ID1 to ID4 in FIG. 7, respectively.
  • the control unit 401 of the terminal device 400 is connected to the wireless LAN in the vehicle 100 via the second wireless communication unit 404.
  • Step S703 The control unit 401 of the terminal device 400 associates the radio wave intensity of the advertised packet received by the first wireless communication unit 402 with the device ID stored in the advertised packet as a radio wave intensity list.
  • the control unit 401 receives the advertised packet, stores the radio wave intensity, and the device ID for a predetermined period. Each time the control unit 401 receives an advertisement packet, the control unit 401 registers or updates the set of the radio wave intensity and the device ID in the radio wave intensity list.
  • Step S704 The control unit 401 of the terminal device 400 broadcasts a device search packet via the second wireless communication unit 404.
  • Step S705 The control unit 311 of the displays 301 to 304 receives the device search packet from the terminal device 400 via the second wireless communication unit 314.
  • the control unit 311 transmits a device information packet storing its own device ID stored in the memory 313 as a response to the device search packet via the second wireless communication unit 314.
  • the displays 301 to 304 store the device IDs ID01 to ID04 in the device information packet and transmit them.
  • the terminal device 400 extracts the device ID stored in the device information packet received via the second wireless communication unit 404, registers it in the device ID list, and stores it in the memory 403.
  • Step S706 The control unit 401 of the terminal device 400 checks the radio wave intensity list and the device ID list stored in the memory 403, and extracts the device ID registered in both lists. In the case of FIG. 7, the device IDs (ID01 to ID04) of the displays 301 to 304 are extracted. The control unit 401 determines the device ID having the strongest radio wave intensity among the extracted device IDs (ID01 to ID04) as the cooperation device. In this case, as shown in FIG. 6, since the radio field strength of the advertisement packet received from the display 304 is the highest, the control unit 401 selects the display 304 as a linked device.
  • Step S707 The control unit 401 establishes a wireless connection with the cooperation device using the device information stored in the device information packet of the device selected as the cooperation device.
  • the terminal device 400 establishes a wireless connection with the display 304.
  • Step S708 The control unit 401 of the terminal device 400 transmits a device control command to the display 304.
  • Step S709 The control unit 311 of the display 304 performs an operation according to the device control command received via the second wireless communication unit 314, and reports the operation result to the terminal device 400.
  • the operation means, for example, displaying data reproduced by the terminal device on the display 304.
  • the terminal device 400 and the display 304 repeat the operations in steps S708 and 709.
  • step S702 may be performed periodically. By performing the operation periodically, for example, even when a passenger with the terminal device 400 moves a seat, it is possible to select a display closest to the moved seat as a linked device.
  • FIG. 8 illustrates an operation example according to the first embodiment of the present disclosure.
  • the display states of the respective displays 301 to 304 are shown for the sake of explanation.
  • FIG. 8 shows that a cooperative operation for displaying the data displayed on the terminal device 400 on the display 304 is being performed.
  • the plurality of displays 301 to 304 periodically use the first wireless communication capable of measuring the radio field intensity of the received signal to uniquely identify the device ID.
  • the terminal device 400 measures the radio field intensity of the received signal using the first wireless communication.
  • the terminal device 400 performs device search using second wireless communication capable of transmitting and receiving a device search signal, and the plurality of displays 301 to 304 use device information storing device IDs as second responses as responses to the device search. Transmit using wireless communication.
  • the terminal device 400 receives device information using the second wireless communication.
  • the terminal device 400 selects a cooperation device from a display having a device ID included in both the signal received using the first wireless communication and the device information.
  • the terminal device 400 selects the display having the device ID with the highest radio field intensity as the cooperation device.
  • the terminal device 400 can select the display at the closest position among the displays communicable by the second wireless communication as the cooperation device.
  • the terminal device 400 can automatically perform selection of the linked device accompanying the movement of the user of the terminal device 400.
  • the first embodiment has been described as an example of the technique disclosed in the present application.
  • the technology in the present disclosure is not limited to this, and can also be applied to embodiments that have been changed, replaced, added, omitted, and the like.
  • the seat position of the passenger can be estimated by selecting the cooperative display. Thereby, sound field control for passengers, control of air conditioner and lighting, and the like are also possible.
  • the approximate distance and direction (vector) from the terminal device to the display can be determined. Accordingly, for example, by swiping the screen of the terminal device in the direction of the display, it becomes possible to skip an operation request to a specific display.
  • the first wireless communication unit 312 is disposed only on the displays 301 to 304, but in addition to the displays 301 to 304, for example, the front seat 201, the front seat 202, and the rear seat 203 Alternatively, the first wireless communication unit 312 may be provided. In addition to the displays 301 to 304, the first wireless communication unit 312 is arranged in the seat, and each first wireless communication unit 312 performs the first wireless communication with the terminal device 400, so that the terminal device can be more accurately performed. 400 positions can be identified.
  • the present disclosure can also be applied when a plurality of terminal devices are brought into a vehicle.
  • the operation authority of the display may be set as appropriate. For example, priority may be given to a terminal device that has established communication earliest, or all terminal devices that have established communication may be capable of operating the target display.
  • the present disclosure is targeted for a plurality of displays as linked devices
  • the present disclosure may be applied to an electronic device having the same wireless communication function as the display of the present disclosure.
  • an advertisement packet of BLE communication is transmitted from the first wireless communication unit 312 of a plurality of devices attached in the vehicle. Outside the vehicle, a first wireless communication unit (corresponding to the first wireless communication unit 402) of the smartphone corresponding to the terminal device 400 or a mobile terminal having a key shape receives the advertisement packet.
  • the terminal device 400 measures the radio field intensity and identifies the device with the highest communication sensitivity from among a plurality of devices having the first wireless communication unit 312. If the distance between the identified device and the terminal device 400 is estimated, the distance between the vehicle and the terminal device 400 can also be known.
  • the estimated value is compared with a predetermined reference value. For example, if the estimated value is equal to or less than the predetermined reference value or less than the predetermined reference value, the key can be automatically unlocked and locked.
  • the device ID registered in both the radio wave intensity list and the device ID list is extracted, and then the device ID having the highest radio wave intensity is selected.
  • the selection method of the cooperation device is not limited to this. For example, it may be selected in order from the device ID having the higher radio field intensity than the radio field intensity list, and it is checked whether it is stored in the device ID list.
  • BLE communication is used as the first wireless communication and WiFi communication is used as the second wireless communication.
  • WiFi communication is used as the second wireless communication.
  • Bluetooth registered trademark
  • This disclosure is useful when it is desired to provide an individual service using a terminal device brought into a vehicle.

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Abstract

Provided is a terminal device (400) that identifies, from a plurality of devices (301-304), a device with which to link, said terminal device (400) being provided with a first wireless communication unit, a second wireless communication unit, and a control unit. The first wireless communication unit performs a first wireless communication with which it is possible to measure the radio wave strength of a received signal. The second wireless communication unit performs a second wireless communication with which it is possible to transmit and receive a device search signal. The control unit identifies a device with which to link on the basis of the radio wave strength of a signal received from the devices using the first wireless communication, and the device information resulting from searching for devices using the second wireless communication.

Description

端末装置及び機器選択方法Terminal device and device selection method
　本開示は、端末装置及び機器選択方法に関する。 This disclosure relates to a terminal device and a device selection method.
　特許文献１は、車両に搭載された複数のモニタのいずれかを利用者が選択して、車内に持ち込んだ携帯プレーヤ等のモバイル機器のデータを転送して再生することができるようにした、モバイル機器データの複数モニタ選択転送システムを開示する。これにより、車内に複数のモニタが存在し、モバイル機器を車内に持ち込んだとき、モバイル機器の画像を所定のモニタに容易に表示することができる。 Patent Document 1 discloses a mobile device in which a user can select one of a plurality of monitors mounted on a vehicle and transfer and reproduce data of a mobile device such as a portable player brought into the vehicle. Disclosed is a multiple monitor selective transfer system for device data. Thereby, when there are a plurality of monitors in the vehicle and the mobile device is brought into the vehicle, an image of the mobile device can be easily displayed on a predetermined monitor.
特開２０１０－９３５１５号公報JP 2010-93515 A
　本開示における端末装置は、複数の機器から、連携する機器を特定する端末装置であって、第１の無線通信部と、第２の無線通信部と、制御部と、を備える。第１の無線通信部は、受信した信号の電波強度が測定可能な第１の無線通信を行う。第２の無線通信部は、機器探索信号を送受信可能な第２の無線通信を行う。制御部は、複数の機器から第１の無線通信を用いて受信した信号の電波強度と、第２の無線通信を用いて機器探索を行った結果の機器情報とを基に、連携する機器を特定する。 The terminal device according to the present disclosure is a terminal device that identifies a device to be linked from a plurality of devices, and includes a first wireless communication unit, a second wireless communication unit, and a control unit. The first wireless communication unit performs first wireless communication capable of measuring the radio field intensity of the received signal. The second wireless communication unit performs second wireless communication capable of transmitting and receiving a device search signal. The control unit determines a device to be linked based on the radio wave intensity of the signal received from the plurality of devices using the first wireless communication and the device information obtained as a result of the device search using the second wireless communication. Identify.
　本開示における機器選択方法は、複数の機器から、連携する機器を特定する機器選択方法である。この機器選択方法は、第１の無線通信を用いて、複数の機器から受信した信号の電波強度を測定するステップと、第２の無線通信を用いて、機器探索信号を送受信するステップと、第１の無線通信を用いて受信した信号の電波強度と、第２の無線通信を用いて機器探索を行った結果の機器情報とを基に、連携する機器を特定するステップと、を備える。 The device selection method in the present disclosure is a device selection method for specifying a device to be linked from a plurality of devices. The device selection method includes a step of measuring radio field intensity of signals received from a plurality of devices using first wireless communication, a step of transmitting and receiving a device search signal using second wireless communication, Identifying a device to be linked based on the radio field intensity of the signal received using the first wireless communication and the device information obtained as a result of the device search using the second wireless communication.
　本開示における端末装置及び機器選択方法によれば、端末装置と連係動作を行う機器の選択が自動で行われるので、選択操作が不要となる。 According to the terminal device and the device selection method according to the present disclosure, the selection operation is unnecessary because the device that performs the linking operation with the terminal device is automatically selected.
図１は、本開示の実施の形態１における車両の一例を示す図である。FIG. 1 is a diagram illustrating an example of a vehicle according to the first embodiment of the present disclosure. 図２は、本開示の実施の形態１におけるディスプレイの一構成例を示すブロック図である。FIG. 2 is a block diagram illustrating a configuration example of the display according to the first embodiment of the present disclosure. 図３は、本開示の実施の形態１における端末装置の一構成例を示すブロック図である。FIG. 3 is a block diagram illustrating a configuration example of the terminal device according to the first embodiment of the present disclosure. 図４は、本開示の実施の形態１における機器選択の処理手順を説明するフローチャートである。FIG. 4 is a flowchart for describing a device selection processing procedure according to the first embodiment of the present disclosure. 図５は、アドバタイズパケットの構成例を示す図である。FIG. 5 is a diagram illustrating a configuration example of an advertisement packet. 図６は、ＢＬＥ通信における電波強度の一例を示す図である。FIG. 6 is a diagram illustrating an example of radio wave intensity in BLE communication. 図７は、本開示の実施の形態１の機器選択の処理動作を示すシーケンス図である。FIG. 7 is a sequence diagram illustrating a device selection processing operation according to the first embodiment of the present disclosure. 図８は、本開示の実施の形態１の動作例を説明するための図である。FIG. 8 is a diagram for describing an operation example of the first embodiment of the present disclosure.
　以下、適宜図面を参照しながら、実施の形態を詳細に説明する。但し、必要以上に詳細な説明は省略する場合がある。例えば、既によく知られた事項の詳細説明や実質的に同一の構成に対する重複説明を省略する場合がある。これは、以下の説明が不必要に冗長になるのを避け、当業者の理解を容易にするためである。 Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.
　なお、添付図面および以下の説明は、当業者が本開示を十分に理解するために、提供されるのであって、これらにより請求の範囲に記載の主題を限定することは意図されていない。 The accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the claimed subject matter.
　（実施の形態１）
　以下、図１～７を用いて、実施の形態１を説明する。 (Embodiment 1)
The first embodiment will be described below with reference to FIGS.
　実施の形態１においては、車両に持ち込まれた端末装置が、車両に設置された複数のディスプレイのうちの１つを選択する場合を例にとって説明する。 Embodiment 1 will be described by taking as an example a case where a terminal device brought into a vehicle selects one of a plurality of displays installed in the vehicle.
　［１．構成］
　［１－１．車両］
　図１は、本開示の実施の形態１における車両の概要を示す図である。 [1. Constitution]
[1-1. vehicle]
FIG. 1 is a diagram illustrating an outline of a vehicle according to the first embodiment of the present disclosure.
　車両１００は、前席２０１、前席２０２、後席２０３と、ディスプレイ３０１～３０４を備える。ディスプレイ３０１、ディスプレイ３０２は、各々、前席２０１、前席２０２の近傍に設置される。ディスプレイ３０３、ディスプレイ３０４は、各々前席２０１、前席２０２の背面に設置される。各ディスプレイは、ＷｉＦｉ通信で接続されているとする。なお、図１では、前席に２つ、後ろ席に２つ、ディスプレイを設置した場合について示しているが、ディスプレイの数は４つに限定されるものではない。同様に、座席数も図１の場合に限定されるものではない。 The vehicle 100 includes a front seat 201, a front seat 202, a rear seat 203, and displays 301 to 304. The display 301 and the display 302 are installed in the vicinity of the front seat 201 and the front seat 202, respectively. The display 303 and the display 304 are installed on the back of the front seat 201 and the front seat 202, respectively. Each display is assumed to be connected by WiFi communication. Although FIG. 1 shows the case where two displays are installed in the front seat and two in the rear seat, the number of displays is not limited to four. Similarly, the number of seats is not limited to that shown in FIG.
　また、図１は、前席２０２の後方の後席２０３に端末装置４００が持ち込まれた場合を示している。端末装置４００は、ディスプレイ３０１～３０４のいずれかと連係動作を行う装置であり、例えば、スマートフォン等である。端末装置４００としては、他に、携帯電話、ＰＤＡ（Ｐｅｒｓｏｎａｌ　Ｄｉｇｉｔａｌ　Ａｓｓｉｓｔａｎｔ）やノートブックパソコンといった携帯可能な端末装置であってもよい。 FIG. 1 shows a case where the terminal device 400 is brought into the rear seat 203 behind the front seat 202. The terminal device 400 is a device that performs an linking operation with any of the displays 301 to 304, and is, for example, a smartphone. The terminal device 400 may be a portable terminal device such as a mobile phone, a PDA (Personal Digital Assistant), or a notebook personal computer.
　本開示では、端末装置４００と連係動作する連携機器として、端末装置４００に一番近い位置にあるディスプレイを自動で選択する。 In the present disclosure, the display device closest to the terminal device 400 is automatically selected as the cooperation device that operates in cooperation with the terminal device 400.
　一般に機器間通信として用いられるＷｉＦｉやＥｔｈｅｒｎｅｔ（登録商標）は、機器間の距離を計測することができない。一方で、ＢＬＥ通信（Ｂｌｕｅｔｏｏｔｈ（登録商標）　Ｌｏｗ　Ｅｎｅｒｇｙ）は、狭い領域での機器の出入りを高い精度で検出することが可能で、通信する信号の電波強度から、おおよその距離を計測することが可能である。そこで、本開示では、ＢＬＥ通信のアドバタイズパケットと呼ばれるビーコン信号を用いて、機器の発見と機器間の距離の計測を行う。 Generally, WiFi and Ethernet (registered trademark) used for inter-device communication cannot measure the distance between devices. On the other hand, BLE communication (Bluetooth (registered trademark) Low Energy) can detect the entry and exit of devices in a narrow area with high accuracy, and can measure the approximate distance from the radio wave intensity of the signal to be communicated. Is possible. Therefore, in the present disclosure, a device is discovered and a distance between devices is measured using a beacon signal called an advertisement packet of BLE communication.
　すなわち、本開示の端末装置４００は、ディスプレイ３０１～３０４から送信される信号を、ＢＬＥ通信にて受信し、受信した信号の電波強度に基づいて、連係機器を選択する。 That is, the terminal device 400 according to the present disclosure receives signals transmitted from the displays 301 to 304 through BLE communication, and selects linked devices based on the radio field intensity of the received signals.
　ここで、ＢＬＥ通信は、低消費電力で動作するため、非常に少ないデータしか通信することができない。そのため、ＢＬＥ通信では、端末装置４００のデータを選択したディスプレイに送信するなどの連係動作を行うのは困難である。そこで、本開示では、ディスプレイを選択した後は、端末装置４００と選択したディスプレイとは、ＷｉＦｉ通信を用いて通信を行う。 Here, since BLE communication operates with low power consumption, it can communicate very little data. Therefore, in BLE communication, it is difficult to perform a linkage operation such as transmitting data of the terminal device 400 to a selected display. Therefore, in the present disclosure, after the display is selected, the terminal device 400 and the selected display communicate with each other using WiFi communication.
　このように、本開示のディスプレイ３０１～３０４と端末装置４００は、第１の無線通信に相当するＢＬＥ通信と、第２の無線通信に相当するＷｉＦｉ通信を用途によって切替えて動作するものとする。 As described above, it is assumed that the displays 301 to 304 and the terminal device 400 according to the present disclosure operate by switching between BLE communication corresponding to the first wireless communication and WiFi communication corresponding to the second wireless communication.
　［１－２．ディスプレイ］
　図２は、本開示の実施の形態１におけるディスプレイの一構成例を示すブロック図である。本開示では、ディスプレイ３０１～３０４は同じ構成とし、図３は、一例としてディスプレイ３０１の構成を示す。 [1-2. display]
FIG. 2 is a block diagram illustrating a configuration example of the display according to the first embodiment of the present disclosure. In the present disclosure, the displays 301 to 304 have the same configuration, and FIG. 3 shows the configuration of the display 301 as an example.
　ディスプレイ３０１は、制御部３１１、第１の無線通信部３１２、メモリ３１３、第２の無線通信部３１４、表示制御部３１５、表示部３１６を備える。 The display 301 includes a control unit 311, a first wireless communication unit 312, a memory 313, a second wireless communication unit 314, a display control unit 315, and a display unit 316.
　制御部３１１は、例えば、プログラムが格納された不揮発性メモリ、プログラムを実行するための一時的な記憶領域である揮発性メモリ、入出力ポート、プログラムを実行するプロセッサなどを有する。制御部３１１は、第１の無線通信部３１２や第２の無線通信部３１４を用いた通信制御、連携動作を行うディスプレイの選択、表示制御部３１５の表示制御などを行う。 The control unit 311 includes, for example, a nonvolatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, an input / output port, and a processor that executes the program. The control unit 311 performs communication control using the first wireless communication unit 312 and the second wireless communication unit 314, selection of a display that performs a cooperative operation, display control of the display control unit 315, and the like.
　第１の無線通信部３１２は、受信した信号の電波強度が測定可能なＢＬＥ通信を行う通信インターフェースである。第１の無線通信部３１２は、ＢＬＥ通信のブロードキャスト信号であるアドパタイズパケットを定期的に送信する。 The first wireless communication unit 312 is a communication interface that performs BLE communication capable of measuring the radio field intensity of a received signal. The first wireless communication unit 312 periodically transmits an advertisement packet that is a broadcast signal of BLE communication.
　メモリ３１３は、制御部３１１のワークメモリやディスプレイを一意に識別可能な機器ＩＤを格納するのに用いる。メモリ３１３は、ＤＲＡＭ（Ｄｙｎａｍｉｃ　Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）などの揮発性メモリやフラッシュメモリなどの不揮発性メモリからなる。 The memory 313 is used to store a device ID that can uniquely identify the work memory and display of the control unit 311. The memory 313 includes a volatile memory such as a DRAM (Dynamic Random Access Memory) and a nonvolatile memory such as a flash memory.
　第２の無線通信部３１４は、機器探索信号を送受信可能なＷｉＦｉ通信を行う通信インターフェースである。第２の無線通信部３１４は、端末装置４００から送信される制御情報を受信し、制御信号に対するレスポンスを端末装置４００へ送信する。 The second wireless communication unit 314 is a communication interface that performs WiFi communication capable of transmitting and receiving a device search signal. The second wireless communication unit 314 receives control information transmitted from the terminal device 400 and transmits a response to the control signal to the terminal device 400.
　表示制御部３１５は、表示部３１６に表示する情報や表示方法を制御する。 The display control unit 315 controls information displayed on the display unit 316 and a display method.
　表示部３１６は、ＬＣＤ（Ｌｉｑｕｉｄ　Ｃｒｙｓｔａｌ　Ｄｉｓｐｌａｙ）等の表示画面を有する表示出力装置である。 The display unit 316 is a display output device having a display screen such as an LCD (Liquid Crystal Display).
　［１－３．端末装置］
　図３は、本開示の実施の形態１における端末装置の一構成例を示すブロック図である。 [1-3. Terminal device]
FIG. 3 is a block diagram illustrating a configuration example of the terminal device according to the first embodiment of the present disclosure.
　端末装置４００は、制御部４０１、第１の無線通信部４０２、メモリ４０３、第２の無線通信部４０４、表示部４０５を備える。 The terminal device 400 includes a control unit 401, a first wireless communication unit 402, a memory 403, a second wireless communication unit 404, and a display unit 405.
　制御部４０１は、例えば、プログラムが格納された不揮発性メモリ、プログラムを実行するための一時的な記憶領域である揮発性メモリ、入出力ポート、プログラムを実行するプロセッサなどを有する。制御部４０１は、第１の無線通信部４０２を介して、ディスプレイ３０１～３０４から受信した信号の電波強度を測定すると共に、測定した電波強度に基づいて連携動作するディスプレイを選択する。また、制御部４０１は、選択したディスプレイと第２の無線通信部４０４を介して通信し、連係動作を行う。 The control unit 401 includes, for example, a nonvolatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, an input / output port, and a processor that executes the program. The control unit 401 measures the radio field intensity of the signals received from the displays 301 to 304 via the first wireless communication unit 402, and selects a display that operates in cooperation based on the measured radio field intensity. In addition, the control unit 401 communicates with the selected display via the second wireless communication unit 404 and performs a linkage operation.
　第１の無線通信部４０２は、ＢＬＥ通信を行う通信インターフェースである。第１の無線通信部４０２は、ディスプレイ３０１～３０４が送信するアドバタイズパケットを受信する。 The first wireless communication unit 402 is a communication interface that performs BLE communication. The first wireless communication unit 402 receives advertisement packets transmitted from the displays 301 to 304.
　メモリ４０３は、制御部４０１のワークメモリや、第１の無線通信部４０２を介して受信した信号の電波強度を、受信した信号に含まれるディスプレイを一意に示す機器ＩＤと対応付けて電波強度リストとして記憶するのに用いる。また、メモリ４０３は、制御部４０１が第２の無線通信部４０４を介して受信した機器情報パケットに含まれている機器ＩＤを機器ＩＤリストとして記憶するのに用いる。メモリ４０３は、ＤＲＡＭなどの揮発性メモリやフラッシュメモリなどの不揮発性メモリからなる。 The memory 403 associates the radio field intensity of the signal received via the work memory of the control unit 401 or the first wireless communication unit 402 with the device ID that uniquely indicates the display included in the received signal, and the radio field intensity list. Used to store as The memory 403 is used to store the device ID included in the device information packet received by the control unit 401 via the second wireless communication unit 404 as a device ID list. The memory 403 includes a volatile memory such as a DRAM and a nonvolatile memory such as a flash memory.
　第２の無線通信部４０４は、機器探索信号を送受信可能なＷｉＦｉ通信を行う通信インターフェースである。第２の無線通信部４０４は、ディスプレイ３０１～３０４へ制御信号を送信し、ディスプレイ３０１～３０４からのレスポンスを受信する。 The second wireless communication unit 404 is a communication interface that performs WiFi communication capable of transmitting and receiving a device search signal. The second wireless communication unit 404 transmits a control signal to the displays 301 to 304 and receives responses from the displays 301 to 304.
　表示部４０５は、ＬＣＤ等の表示画面を有する表示出力装置である。また、スマートフォンなどの場合、表示部４０５は、タッチパネルを備え、操作部も兼ねる。 The display unit 405 is a display output device having a display screen such as an LCD. In the case of a smartphone or the like, the display unit 405 includes a touch panel and also serves as an operation unit.
　［２．動作］
　以上のように構成され端末装置について、その動作を以下説明する。 [2. Operation]
The operation of the terminal device configured as described above will be described below.
　［２－１．ディスプレイの特定］
　図４は、本開示の実施の形態１における機器選択の処理手順を説明するフローチャートである。 [2-1. Identification of display]
FIG. 4 is a flowchart for describing a device selection processing procedure according to the first embodiment of the present disclosure.
　（ステップＳ４０１）端末装置４００の制御部４０１は、第１の無線通信部４０２を介して、ディスプレイ３０１～３０４の各第１の無線通信部３１２が送信するアドパタイズパケットを受信する。 (Step S401) The control unit 401 of the terminal device 400 receives the advertisement packet transmitted from each of the first wireless communication units 312 of the displays 301 to 304 via the first wireless communication unit 402.
　図５にアドパタイズパケットの構成例を示す。実施の形態１においては、ディスプレイ３０１～３０４は、アドパタイズパケット５００のＰＵＤ（Ｐｒｏｔｏｃｏｌ　Ｄａｔａ　Ｕｎｉｔ）ペイロード５０１にディスプレイを識別するための機器ＩＤ５１１を格納している。 Fig. 5 shows an example of the structure of an advertising packet. In the first embodiment, the displays 301 to 304 store a device ID 511 for identifying a display in a PUD (Protocol Data Unit) payload 501 of the advertisement packet 500.
　（ステップＳ４０２）制御部４０１は、受信したアドパタイズパケット５００の電波強度を測定する。制御部４０１は、受信したアドパタイズパケット５００に格納されている機器ＩＤ５１１と測定した電波強度を対応付けた電波強度リストをメモリ４０３に格納する。ステップＳ４０１とステップＳ４０２はアドパタイズパケット５００を受信する度に行われる。制御部４０１は、受信したアドパタイズパケット５００に格納されている機器ＩＤ５１１と電波強度の組を随時電波強度リストに登録または更新する。 (Step S402) The control unit 401 measures the radio field intensity of the received advertisement packet 500. The control unit 401 stores, in the memory 403, a radio wave intensity list in which the device ID 511 stored in the received advertisement packet 500 is associated with the measured radio wave intensity. Steps S401 and S402 are performed every time the advertisement packet 500 is received. The control unit 401 registers or updates a set of the device ID 511 and the radio wave intensity stored in the received advertisement packet 500 in the radio wave intensity list as needed.
　（ステップＳ４０３）制御部４０１は、第２の無線通信部４０４を介して、ＵＰｎＰ（Ｕｎｉｖｅｒｓａｌ　Ｐｌｕｇ　ａｎｄ　Ｐｌａｙ）のＳＳＤＰ（Ｓｉｍｐｌｅ　Ｓｅｒｖｉｃｅ　Ｄｉｓｃｏｖｅｒｙ　Ｐｒｏｔｏｃｏｌ）を用いて、車両１００内の機器探索を行う。すなわち制御部４０１は、第２の無線通信部４０４を介して、ディスプレイ３０１～３０４を探索する。制御部４０１は、マルチキャストを使って、機器探索パケットを送信する。機器探索パケットは、機器探索信号の一つである。 (Step S403) The control unit 401 searches for devices in the vehicle 100 using the UPnP (Universal Plug and Play) SSDP (Simple Service Discovery Protocol) via the second wireless communication unit 404. That is, the control unit 401 searches the displays 301 to 304 via the second wireless communication unit 404. The control unit 401 transmits a device search packet using multicast. The device search packet is one of device search signals.
　（ステップＳ４０４）制御部４０１は、機器探索パケットにレスポンスした機器（ディスプレイ３０１～３０４）の第２の無線通信部３１４から送信された機器情報パケットを受信する。機器情報パケットは、機器探索信号の一つである。制御部４０１は、受信した機器情報パケットに格納されている機器ＩＤを取出し、機器ＩＤリストに登録する。この動作は機器情報パケットを受信する度に行われる。制御部４０１は、機器ＩＤリストに、探索された機器ＩＤを随時登録または、更新する。 (Step S404) The control unit 401 receives the device information packet transmitted from the second wireless communication unit 314 of the device (displays 301 to 304) responding to the device search packet. The device information packet is one of device search signals. The control unit 401 extracts the device ID stored in the received device information packet and registers it in the device ID list. This operation is performed every time a device information packet is received. The control unit 401 registers or updates the searched device ID at any time in the device ID list.
　（ステップＳ４０５）制御部４０１は、予め設定された期間毎に、メモリ４０３に格納されている機器ＩＤリストと電波強度リストを用いて連携機器を選択する。制御部４０１は、機器ＩＤリストと電波強度リストのいずれにも登録されている機器ＩＤを抽出する。制御部４０１は、抽出した機器ＩＤの中で、最も大きい電波強度の機器ＩＤを保有する機器を、連携機器として選択する。これにより、ディスプレイ３０１～３０４のうちのいずれかが、連携機器として選択される。 (Step S405) The control unit 401 selects a linked device for each preset period using the device ID list and the radio wave intensity list stored in the memory 403. The control unit 401 extracts a device ID registered in both the device ID list and the radio wave intensity list. The control unit 401 selects a device having a device ID with the highest radio wave intensity among the extracted device IDs as a linked device. As a result, one of the displays 301 to 304 is selected as the cooperation device.
　図６は、ＢＬＥ通信における電波強度を説明するための図である。 FIG. 6 is a diagram for explaining the radio wave intensity in BLE communication.
　図６において、アンテナ位置Ｐは端末装置４００の第１の無線通信部４０２のアンテナ位置、アンテナ位置Ｐ１～アンテナ位置Ｐ４は、ディスプレイ３０１～３０４の第１の無線通信部３１２のアンテナ位置を示す。また、アンテナ位置Ｐを基準とする同心円Ｌ１、Ｌ２、Ｌ３、Ｌ４は、アンテナ位置Ｐを基準とした電波強度範囲を示す。ここで、同心円Ｌ１の電波強度をＦ１、同心円Ｌ２の電波強度をＦ２、同心円Ｌ３の電波強度をＦ３、同心円Ｌ４の電波強度をＦ４とすると、Ｆ１＞Ｆ２＞Ｆ３＞Ｆ４の関係になる。 6, the antenna position P indicates the antenna position of the first wireless communication unit 402 of the terminal device 400, and the antenna positions P1 to P4 indicate the antenna positions of the first wireless communication unit 312 of the displays 301 to 304. In addition, concentric circles L1, L2, L3, and L4 with respect to the antenna position P indicate a radio field intensity range with respect to the antenna position P. Here, assuming that the radio field intensity of the concentric circle L1 is F1, the radio field intensity of the concentric circle L2 is F2, the radio field intensity of the concentric circle L3 is F3, and the radio field intensity of the concentric circle L4 is F4, the relationship is F1> F2> F3> F4.
　図６の場合、端末装置４００に最も近い位置に設置されたディスプレイ３０４から送信される信号の電波強度が一番強く、ディスプレイ３０３、ディスプレイ３０２、ディスプレイ３０１の順に受信した信号の電波強度は弱くなる。 In the case of FIG. 6, the radio wave intensity of the signal transmitted from the display 304 installed at the position closest to the terminal device 400 is the strongest, and the radio wave intensity of the signals received in the order of the display 303, the display 302, and the display 301 becomes weaker. .
　電波強度は、端末装置４００からの距離に依存することから、最も電波強度が強い信号を送信したディスプレイが端末装置４００に最も近い位置にあると判断できる。端末装置４００の制御部４０１は、最も電波強度が強かった機器ＩＤを有するディスプレイを連携機器に選択する。 Since the radio wave intensity depends on the distance from the terminal device 400, it can be determined that the display that has transmitted the signal having the strongest radio wave intensity is located closest to the terminal device 400. The control unit 401 of the terminal device 400 selects the display having the device ID with the strongest radio field intensity as the cooperation device.
　なお、制御部４０１は、電波強度リストと機器ＩＤリストに一致する機器ＩＤが見つからなかった場合、機器連携の処理を行わない。この時、制御部４０１は連携機器がないことを端末装置４００に通知してもよい。 The control unit 401 does not perform device cooperation processing when a device ID that matches the radio wave intensity list and the device ID list is not found. At this time, the control unit 401 may notify the terminal device 400 that there is no linked device.
　また、電波強度の測定に関する処理（ステップＳ４０１及びステップＳ４０２）と機器情報の受信に関する処理（ステップＳ４０３及びステップＳ４０４）の順序は逆でも構わない。すなわちステップＳ４０３及びステップＳ４０４の後、ステップＳ４０１及びステップＳ４０２を実行してもよい。 Also, the order of the processing related to the measurement of the radio wave intensity (steps S401 and S402) and the processing related to the reception of the device information (steps S403 and S404) may be reversed. That is, step S401 and step S402 may be executed after step S403 and step S404.
　［２－２．処理動作のシーケンス］
　図７は、本開示における機器選択の処理動作を示すシーケンス図である。実施の形態１においては、車両１００内はＷｉＦｉ通信が可能とする。 [2-2. Processing operation sequence]
FIG. 7 is a sequence diagram illustrating a device selection processing operation according to the present disclosure. In the first embodiment, WiFi communication is possible within vehicle 100.
　（ステップＳ７０１）車両１００がイグニッションオン状態になるとディスプレイ３０１～３０４が電源ＯＮ状態になる。ディスプレイ３０１～３０４は、第２の無線通信部３１４を介して、車両１００内の無線ＬＡＮに接続する。 (Step S701) When the vehicle 100 is in an ignition-on state, the displays 301 to 304 are in a power-on state. The displays 301 to 304 are connected to the wireless LAN in the vehicle 100 via the second wireless communication unit 314.
　（ステップＳ７０２）ディスプレイ３０１～３０４の制御部３１１は、メモリ３１３から機器ＩＤを読み出し、第１の無線通信部３１２に機器ＩＤを格納したアドパタイズパケットを定期的にブロードキャストさせる。図７においては、ディスプレイ３０１～３０４は各々、自身の機器ＩＤであるＩＤ０１～ＩＤ０４をアドパタイズパケットに格納して送信する。ＩＤ０１～ＩＤ０４は、それぞれ図７のＩＤ１～ＩＤ４に対応する。 (Step S702) The control unit 311 of the displays 301 to 304 reads the device ID from the memory 313, and causes the first wireless communication unit 312 to periodically broadcast an advertisement packet storing the device ID. In FIG. 7, the displays 301 to 304 each store their own device IDs ID01 to ID04 in an advertisement packet and transmit them. ID01 to ID04 correspond to ID1 to ID4 in FIG. 7, respectively.
　ここで、図１に示すように、前席２０２の後方の後席２０３に端末装置４００を持った同乗者が車両１００に乗り込んだとする。端末装置４００の制御部４０１は、第２の無線通信部４０４を介して車両１００内の無線ＬＡＮに接続する。 Here, as shown in FIG. 1, it is assumed that a passenger having the terminal device 400 gets into the vehicle 100 in the rear seat 203 behind the front seat 202. The control unit 401 of the terminal device 400 is connected to the wireless LAN in the vehicle 100 via the second wireless communication unit 404.
　（ステップＳ７０３）端末装置４００の制御部４０１は、第１の無線通信部４０２が受信したアドパタイズパケットの電波強度とアドパタイズパケットに格納されている機器ＩＤを対応付けて、電波強度リストとして、メモリ４０３に格納する。制御部４０１は、アドパタイズパケットの受信と電波強度と機器ＩＤの格納を所定の期間行う。制御部４０１は、アドパタイズパケットを受信する度に、電波強度と機器ＩＤの組を電波強度リストに登録または更新する。 (Step S703) The control unit 401 of the terminal device 400 associates the radio wave intensity of the advertised packet received by the first wireless communication unit 402 with the device ID stored in the advertised packet as a radio wave intensity list. Store in the memory 403. The control unit 401 receives the advertised packet, stores the radio wave intensity, and the device ID for a predetermined period. Each time the control unit 401 receives an advertisement packet, the control unit 401 registers or updates the set of the radio wave intensity and the device ID in the radio wave intensity list.
　（ステップＳ７０４）端末装置４００の制御部４０１は、第２の無線通信部４０４を介して、機器探索パケットをブロードキャストする。 (Step S704) The control unit 401 of the terminal device 400 broadcasts a device search packet via the second wireless communication unit 404.
　（ステップＳ７０５）ディスプレイ３０１～３０４の制御部３１１は第２の無線通信部３１４を介して、端末装置４００からの機器探索パケットを受信する。制御部３１１は、機器探索パケットに対するレスポンスとして、メモリ３１３に格納している自身の機器ＩＤを格納した機器情報パケットを、第２の無線通信部３１４を介して送信する。図７の場合、ディスプレイ３０１～３０４は、各々、機器ＩＤであるＩＤ０１～ＩＤ０４を機器情報パケットに格納して、送信する。端末装置４００は、第２の無線通信部４０４を介して受信した機器情報パケットに格納されている機器ＩＤを取出して、機器ＩＤリストに登録し、メモリ４０３に格納する。 (Step S705) The control unit 311 of the displays 301 to 304 receives the device search packet from the terminal device 400 via the second wireless communication unit 314. The control unit 311 transmits a device information packet storing its own device ID stored in the memory 313 as a response to the device search packet via the second wireless communication unit 314. In the case of FIG. 7, the displays 301 to 304 store the device IDs ID01 to ID04 in the device information packet and transmit them. The terminal device 400 extracts the device ID stored in the device information packet received via the second wireless communication unit 404, registers it in the device ID list, and stores it in the memory 403.
　（ステップＳ７０６）端末装置４００の制御部４０１は、メモリ４０３に格納されている電波強度リストと機器ＩＤリストを調べ、どちらのリストにも登録されている機器ＩＤを抽出する。図７の場合は、ディスプレイ３０１～３０４の機器ＩＤ（ＩＤ０１～ＩＤ０４）が抽出される。制御部４０１は、抽出した機器ＩＤ（ＩＤ０１～ＩＤ０４）の中で、最も強い電波強度の機器ＩＤを連携機器に決定する。この場合、図６に示すようにディスプレイ３０４から受信したアドパタイズパケットの電波強度が最も高い結果となるため、制御部４０１は、ディスプレイ３０４を連携機器として選択する。 (Step S706) The control unit 401 of the terminal device 400 checks the radio wave intensity list and the device ID list stored in the memory 403, and extracts the device ID registered in both lists. In the case of FIG. 7, the device IDs (ID01 to ID04) of the displays 301 to 304 are extracted. The control unit 401 determines the device ID having the strongest radio wave intensity among the extracted device IDs (ID01 to ID04) as the cooperation device. In this case, as shown in FIG. 6, since the radio field strength of the advertisement packet received from the display 304 is the highest, the control unit 401 selects the display 304 as a linked device.
　（ステップＳ７０７）制御部４０１は、連携機器として選択した機器の機器情報パケットに格納されている機器情報を用いて、連携機器と無線接続を確立する。図７においては、端末装置４００は、ディスプレイ３０４と無線接続を確立する。 (Step S707) The control unit 401 establishes a wireless connection with the cooperation device using the device information stored in the device information packet of the device selected as the cooperation device. In FIG. 7, the terminal device 400 establishes a wireless connection with the display 304.
　（ステップＳ７０８）端末装置４００の制御部４０１は、ディスプレイ３０４に対して、機器制御コマンドを送信する。 (Step S708) The control unit 401 of the terminal device 400 transmits a device control command to the display 304.
　（ステップＳ７０９）ディスプレイ３０４の制御部３１１は第２の無線通信部３１４を介して受信した機器制御コマンドに応じた操作を行い、操作結果を端末装置４００に報告する。ここで、操作とは、例えば、端末装置で再生していたデータをディスプレイ３０４で表示させることなどである。端末装置４００とディスプレイ３０４はステップＳ７０８とステップ７０９の動作を繰り返す。 (Step S709) The control unit 311 of the display 304 performs an operation according to the device control command received via the second wireless communication unit 314, and reports the operation result to the terminal device 400. Here, the operation means, for example, displaying data reproduced by the terminal device on the display 304. The terminal device 400 and the display 304 repeat the operations in steps S708 and 709.
　なお、図７においては、端末装置４００を持った同乗者が車両１００に乗り込んだ場合を例にとって説明したが、この場合に限定するものではない。ステップＳ７０２からの動作は定期的に行ってもよい。定期的に動作を行うことで、例えば、端末装置４００を持った同乗者が座席を移った場合でも、移動した座席に最も近いディスプレイを連携機器として選択することが可能となる。 In FIG. 7, the case where a passenger having the terminal device 400 gets into the vehicle 100 has been described as an example, but the present invention is not limited to this case. The operation from step S702 may be performed periodically. By performing the operation periodically, for example, even when a passenger with the terminal device 400 moves a seat, it is possible to select a display closest to the moved seat as a linked device.
　［２－３．動作例］
　図８に、本開示の実施の形態１における動作例を示す。図８においては、説明のために、各ディスプレイ３０１～３０４の表示状態が分かるようにしている。 [2-3. Example of operation]
FIG. 8 illustrates an operation example according to the first embodiment of the present disclosure. In FIG. 8, the display states of the respective displays 301 to 304 are shown for the sake of explanation.
　図８は、端末装置４００に表示されていたデータを、ディスプレイ３０４に表示させる連携動作が行われていることを示している。 FIG. 8 shows that a cooperative operation for displaying the data displayed on the terminal device 400 on the display 304 is being performed.
　［３．効果等］
　以上のように、本実施の形態において、複数のディスプレイ３０１～３０４は、定期的に、受信した信号の電波強度が測定可能な第１の無線通信を用いて、自身を一意に識別する機器ＩＤを格納した信号を送信し、端末装置４００は、第１の無線通信を用いて受信した信号の電波強度を測定する。端末装置４００は、機器探索信号を送受信可能な第２の無線通信を用いて機器探索を行い、複数のディスプレイ３０１～３０４は、機器探索に対するレスポンスとして、機器ＩＤを格納した機器情報を第２の無線通信を用いて送信する。端末装置４００は、第２の無線通信を用いて機器情報を受信する。端末装置４００は、第１の無線通信を用いて受信した信号と機器情報のいずれにも含まれる機器ＩＤを有するディスプレイの中から連携機器を選択する。端末装置４００は、最も大きい電波強度の機器ＩＤを有するディスプレイを連携機器として選択する。 [3. Effect]
As described above, in the present embodiment, the plurality of displays 301 to 304 periodically use the first wireless communication capable of measuring the radio field intensity of the received signal to uniquely identify the device ID. The terminal device 400 measures the radio field intensity of the received signal using the first wireless communication. The terminal device 400 performs device search using second wireless communication capable of transmitting and receiving a device search signal, and the plurality of displays 301 to 304 use device information storing device IDs as second responses as responses to the device search. Transmit using wireless communication. The terminal device 400 receives device information using the second wireless communication. The terminal device 400 selects a cooperation device from a display having a device ID included in both the signal received using the first wireless communication and the device information. The terminal device 400 selects the display having the device ID with the highest radio field intensity as the cooperation device.
　これにより、端末装置４００は、第２の無線通信で通信可能なディスプレイの中で、最も近い位置にあるディスプレイを連携機器として選択することができる。 Thereby, the terminal device 400 can select the display at the closest position among the displays communicable by the second wireless communication as the cooperation device.
　従って、端末装置４００の利用者の移動に伴った連携機器の選択を、端末装置４００は自動に行うことが可能となる。 Therefore, the terminal device 400 can automatically perform selection of the linked device accompanying the movement of the user of the terminal device 400.
　（他の実施の形態）
　以上のように、本出願において開示する技術の例示として、実施の形態１を説明した。しかしながら、本開示における技術は、これに限定されず、変更、置き換え、付加、省略などを行った実施の形態にも適用できる。また、上記実施の形態１で説明した各構成要素を組み合わせて、新たな実施の形態とすることも可能である。 (Other embodiments)
As described above, the first embodiment has been described as an example of the technique disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments that have been changed, replaced, added, omitted, and the like. Moreover, it is also possible to combine each component demonstrated in the said Embodiment 1, and it can also be set as a new embodiment.
　そこで、以下、他の実施の形態を例示する。 Therefore, other embodiments will be exemplified below.
　なお、車両においては、座席とディスプレイの位置が予め決まっているため、連携ディスプレイを選択することにより、同乗者の座席位置を推定することができる。これにより、同乗者に対する音場制御やエアコン及び照明の制御なども可能になる。 In the vehicle, since the position of the seat and the display is determined in advance, the seat position of the passenger can be estimated by selecting the cooperative display. Thereby, sound field control for passengers, control of air conditioner and lighting, and the like are also possible.
　また、同乗者の座席位置が推定できることにより、端末装置からディスプレイへのおよその距離と方向（ベクトル）を判定することができる。これにより、例えば、端末装置の画面上をそのディスプレイの方向にスワイプすることで、特定のディスプレイに操作要求を飛ばすことが可能になる。 Also, since the passenger's seat position can be estimated, the approximate distance and direction (vector) from the terminal device to the display can be determined. Accordingly, for example, by swiping the screen of the terminal device in the direction of the display, it becomes possible to skip an operation request to a specific display.
　また、本開示では、第１の無線通信部３１２をディスプレイ３０１～３０４のみに配置する例を示したが、ディスプレイ３０１～３０４に加えて、たとえば前席２０１、前席２０２、及び後席２０３にも、それぞれ第１の無線通信部３１２を配置していてもよい。ディスプレイ３０１～３０４の他に座席にも第１の無線通信部３１２を配置し、それぞれの第１の無線通信部３１２が端末装置４００と第１の無線通信を行うことで、より正確に端末装置４００の位置を特定できる。特に、ＢＬＥ通信において、アドバタイズパケットの送出モジュールである第１の無線通信部３１２と、受信モジュールである第１の無線通信部４０２との間に人が入った場合、信号が大きく減衰し、電波強度の計測に誤りが生じ易い。しかし第１の無線通信部３１２の数を増やすことで、誤りを軽減できる。 Further, in the present disclosure, an example in which the first wireless communication unit 312 is disposed only on the displays 301 to 304 has been described, but in addition to the displays 301 to 304, for example, the front seat 201, the front seat 202, and the rear seat 203 Alternatively, the first wireless communication unit 312 may be provided. In addition to the displays 301 to 304, the first wireless communication unit 312 is arranged in the seat, and each first wireless communication unit 312 performs the first wireless communication with the terminal device 400, so that the terminal device can be more accurately performed. 400 positions can be identified. In particular, in BLE communication, when a person enters between the first wireless communication unit 312 that is an advertisement packet transmission module and the first wireless communication unit 402 that is a reception module, the signal is greatly attenuated, Errors in strength measurement are likely to occur. However, errors can be reduced by increasing the number of first wireless communication units 312.
　また、本開示においては、端末装置の数が１台の場合について説明したが、複数台の端末装置が車両に持ち込まれた場合も適用可能である。ディスプレイの設置位置によっては、複数の端末装置が同じディスプレイを選択する場合が考えられる。その場合、ディスプレイの操作権限は適宜設定すればよい。例えば、最も早く通信確立した端末装置を優先してもよいし、通信確立した端末装置全てが対象ディスプレイを操作可能としてもよい。 In the present disclosure, the case where the number of terminal devices is one has been described. However, the present disclosure can also be applied when a plurality of terminal devices are brought into a vehicle. Depending on the installation position of the display, there may be a case where a plurality of terminal devices select the same display. In that case, the operation authority of the display may be set as appropriate. For example, priority may be given to a terminal device that has established communication earliest, or all terminal devices that have established communication may be capable of operating the target display.
　また、センサを用いて、座席の使用状況を判別し、未使用座席のディスプレイでは、ＢＬＥ通信のアドバタイズパケットを送信しないようにすることで、連携機器の判別精度を上げることができる。 Also, by using the sensor to determine the seat usage status and not displaying the BLE communication advertisement packet on the unused seat display, it is possible to improve the discrimination accuracy of the linked device.
　また、本開示は連携機器として、複数のディスプレイを対象としたが、本開示のディスプレイと同様の無線通信機能を有する電子機器に適用してもよい。例えば、各座席に設置された音響機器、エアーコンディショナ、照明の選択なども可能となる。この場合、例えば、機器ＩＤに機器の種類の情報も付加しておくことで、端末装置に機器の種類毎に最も近い機器との連携操作が可能となる。 In addition, although the present disclosure is targeted for a plurality of displays as linked devices, the present disclosure may be applied to an electronic device having the same wireless communication function as the display of the present disclosure. For example, it is possible to select an acoustic device, an air conditioner, and lighting installed in each seat. In this case, for example, by adding information on the device type to the device ID, it is possible to perform a cooperative operation with the device closest to the terminal device for each device type.
　更に本開示は、車両の鍵の開錠及び施錠へ適用することもできる。具体例を挙げる。たとえば車内に取り付けられた複数の機器の第１の無線通信部３１２から、ＢＬＥ通信のアドバタイズパケットを送信する。車外では、端末装置４００に相当するスマートフォンや鍵の形状をしたモバイル端末の第１の無線通信部（第１の無線通信部４０２に相当）が、アドバタイズパケットを受信する。端末装置４００は、電波強度を計測し、第１の無線通信部３１２を有する複数の機器の中から、最も通信感度の高い機器を特定する。特定された機器と端末装置４００との距離を推定すれば、車両と端末装置４００との距離も分かる。推定された値と、所定の基準値とを比較し、たとえば所定の基準値以下、あるいは所定の基準値未満であれば、自動的に鍵の開錠及び施錠を行うよう設定できる。 Furthermore, the present disclosure can also be applied to unlocking and locking a vehicle key. A specific example is given. For example, an advertisement packet of BLE communication is transmitted from the first wireless communication unit 312 of a plurality of devices attached in the vehicle. Outside the vehicle, a first wireless communication unit (corresponding to the first wireless communication unit 402) of the smartphone corresponding to the terminal device 400 or a mobile terminal having a key shape receives the advertisement packet. The terminal device 400 measures the radio field intensity and identifies the device with the highest communication sensitivity from among a plurality of devices having the first wireless communication unit 312. If the distance between the identified device and the terminal device 400 is estimated, the distance between the vehicle and the terminal device 400 can also be known. The estimated value is compared with a predetermined reference value. For example, if the estimated value is equal to or less than the predetermined reference value or less than the predetermined reference value, the key can be automatically unlocked and locked.
　また、本開示では、電波強度リストと機器ＩＤリストのいずれにも登録されている機器ＩＤを抽出した後、最も大きな電波強度を有する機器ＩＤを選択した。連携機器の選択方法は、これに限るものではない。例えば、電波強度リストより電波強度の大きい機器ＩＤから順に選択し、機器ＩＤリストに格納されているかを調べてもよい。 In the present disclosure, the device ID registered in both the radio wave intensity list and the device ID list is extracted, and then the device ID having the highest radio wave intensity is selected. The selection method of the cooperation device is not limited to this. For example, it may be selected in order from the device ID having the higher radio field intensity than the radio field intensity list, and it is checked whether it is stored in the device ID list.
　また、実施の形態１では、第１の無線通信としてＢＬＥ通信、第２の無線通信としてＷｉＦｉ通信を用いたがこれに限定しない。例えば、第２の無線通信としてＢｌｕｅｔｏｏｔｈ（登録商標）などを用いてもよい。 In the first embodiment, BLE communication is used as the first wireless communication and WiFi communication is used as the second wireless communication. However, the present invention is not limited to this. For example, Bluetooth (registered trademark) may be used as the second wireless communication.
　本開示は、車両内に持ち込まれた端末装置を用いて個別サービスを提供したい場合に有用である。 This disclosure is useful when it is desired to provide an individual service using a terminal device brought into a vehicle.
１００　車両
２０１，２０２　前席
２０３　後席
３０１，３０２，３０３，３０４　ディスプレイ
３１１，４０１　制御部
３１２，４０２　第１の無線通信部
３１３，４０３　メモリ
３１４，４０４　第２の無線通信部
３１５　表示制御部
３１６，４０５　表示部
４００　端末装置
５００　アドパタイズパケット
５０１　ＰＵＤペイロード
５１１　機器ＩＤ 100 Vehicle 201, 202 Front seat 203 Rear seat 301, 302, 303, 304 Display 311, 401 Control unit 312, 402 First wireless communication unit 313, 403 Memory 314, 404 Second wireless communication unit 315 Display control unit 316 , 405 Display unit 400 Terminal device 500 Advertise packet 501 PUD payload 511 Device ID

Claims (5)

  1. 複数の機器から、連携する機器を特定する端末装置であって、
    受信した信号の電波強度が測定可能な第１の無線通信を行う第１の無線通信部と、
    機器探索信号を送受信可能な第２の無線通信を行う第２の無線通信部と、
    前記複数の機器から前記第１の無線通信を用いて受信した信号の電波強度と、前記第２の無線通信を用いて機器探索を行った結果の機器情報とを基に、前記連携する機器を特定する制御部と、
    を備える端末装置。     A terminal device that identifies a device to be linked from a plurality of devices,
    A first wireless communication unit that performs first wireless communication capable of measuring a radio field intensity of a received signal;
    A second wireless communication unit that performs second wireless communication capable of transmitting and receiving a device search signal;
    Based on the radio field intensity of signals received from the plurality of devices using the first wireless communication and device information obtained as a result of device search using the second wireless communication, A control unit to identify;
    A terminal device comprising:
  2. 前記第１の無線通信の通信範囲は、前記第２の無線通信の範囲より狭い請求項１記載の端末装置。 The terminal device according to claim 1, wherein a communication range of the first wireless communication is narrower than a range of the second wireless communication.
  3. 前記第１の無線通信は、ＢＬＥ通信であり、前記第２の無線通信は、ＷｉＦｉである請求項１記載の端末装置。 The terminal device according to claim 1, wherein the first wireless communication is BLE communication, and the second wireless communication is WiFi.
  4. 前記複数の機器はディスプレイである請求項１記載の端末装置。 The terminal device according to claim 1, wherein the plurality of devices are displays.
  5. 複数の機器から、連携する機器を特定する機器選択方法であって、
    第１の無線通信を用いて、前記複数の機器から受信した信号の電波強度を測定するステップと、
    第２の無線通信を用いて、機器探索信号を送受信するステップと、
    前記第１の無線通信を用いて受信した信号の電波強度と、前記第２の無線通信を用いて機器探索を行った結果の機器情報とを基に、前記連携する機器を特定するステップと、
    を備える機器選択方法。     A device selection method for identifying a linked device from a plurality of devices,
    Measuring the radio field intensity of signals received from the plurality of devices using first wireless communication;
    Transmitting and receiving a device search signal using second wireless communication;
    Identifying the cooperating device based on the radio wave intensity of the signal received using the first wireless communication and the device information obtained as a result of the device search using the second wireless communication;
    A device selection method comprising:
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110196696A (en) * 2018-02-27 2019-09-03 精工爱普生株式会社 Terminal installation, communication system, storage medium and display control method
US11314389B2 (en) 2017-12-22 2022-04-26 Samsung Electronics Co., Ltd. Method for presenting content based on checking of passenger equipment and distraction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008228271A (en) * 2007-02-13 2008-09-25 Ricoh Co Ltd Radio communication terminal unit, display method therefor, and radio communication network system
JP2012186602A (en) * 2011-03-04 2012-09-27 Casio Comput Co Ltd Portable terminal device and program
JP2015073231A (en) * 2013-10-03 2015-04-16 キヤノン株式会社 Communication device, communication method and program
JP2015170922A (en) * 2014-03-05 2015-09-28 キヤノン株式会社 Communication apparatus, control method of the same, and program
JP2015185851A (en) * 2014-03-20 2015-10-22 カシオ計算機株式会社 Communication device, operation control method, and program
JP2016225711A (en) * 2015-05-27 2016-12-28 カシオ計算機株式会社 Communication system, electronic apparatus, communication terminal, apparatus retrieval method and program

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008228271A (en) * 2007-02-13 2008-09-25 Ricoh Co Ltd Radio communication terminal unit, display method therefor, and radio communication network system
JP2012186602A (en) * 2011-03-04 2012-09-27 Casio Comput Co Ltd Portable terminal device and program
JP2015073231A (en) * 2013-10-03 2015-04-16 キヤノン株式会社 Communication device, communication method and program
JP2015170922A (en) * 2014-03-05 2015-09-28 キヤノン株式会社 Communication apparatus, control method of the same, and program
JP2015185851A (en) * 2014-03-20 2015-10-22 カシオ計算機株式会社 Communication device, operation control method, and program
JP2016225711A (en) * 2015-05-27 2016-12-28 カシオ計算機株式会社 Communication system, electronic apparatus, communication terminal, apparatus retrieval method and program

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11314389B2 (en) 2017-12-22 2022-04-26 Samsung Electronics Co., Ltd. Method for presenting content based on checking of passenger equipment and distraction
EP3502862B1 (en) * 2017-12-22 2022-11-30 Samsung Electronics Co., Ltd. Method for presenting content based on checking of passenger equipment and distraction
CN110196696A (en) * 2018-02-27 2019-09-03 精工爱普生株式会社 Terminal installation, communication system, storage medium and display control method

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