WO2021192447A1 - Wireless communication device, vehicle provided with same, and wireless communication system - Google Patents

Wireless communication device, vehicle provided with same, and wireless communication system Download PDF

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Publication number
WO2021192447A1
WO2021192447A1 PCT/JP2020/046489 JP2020046489W WO2021192447A1 WO 2021192447 A1 WO2021192447 A1 WO 2021192447A1 JP 2020046489 W JP2020046489 W JP 2020046489W WO 2021192447 A1 WO2021192447 A1 WO 2021192447A1
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Prior art keywords
communication device
communication
wireless
polling
wireless communication
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PCT/JP2020/046489
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French (fr)
Japanese (ja)
Inventor
紀博 清水
信吾 望月
洋介 大橋
啓太 祖父江
Original Assignee
株式会社東海理化電機製作所
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Publication of WO2021192447A1 publication Critical patent/WO2021192447A1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • 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

Definitions

  • the present disclosure relates to a wireless communication device, a vehicle equipped with the wireless communication device, and a wireless communication system.
  • Patent Document 1 discloses a wireless communication system including a portable device capable of bidirectional communication and an in-vehicle communication device.
  • short-range wireless communication for example, wireless communication using a communication method according to the standard of NFC (Near Field Communication), hereinafter referred to as "NFC communication” or simply "NFC”
  • NFC communication Near Field Communication
  • Wireless communication is performed between the portable device and the in-vehicle communication device, and the vehicle door can be unlocked and locked or the engine can be started from the portable device (see Patent Document 1).
  • the present disclosure has been made to solve such a problem, and an object of the present disclosure is a dark current in a wireless communication device including a communication device for wireless communication with a mobile device, a vehicle equipped with the communication device, and a wireless communication system. Is to reduce.
  • the wireless communication device of the present disclosure includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices.
  • the communicable distance of the first communicator is longer than the communicable distance of the second communicator.
  • Each of the first and second communication devices is configured to perform polling to detect a mobile device capable of wireless communication.
  • the controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
  • the wireless communication system of the present disclosure includes a wireless communication device and a portable device that performs wireless communication with the wireless communication device.
  • the wireless communication device includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices.
  • the communicable distance of the first communicator is longer than the communicable distance of the second communicator.
  • Each of the first and second communicators is configured to poll to detect a mobile device.
  • the controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
  • the above wireless communication device includes first and second communication devices, and the communication range of the first communication device is longer than the communication range of the second communication device. Therefore, the connection between the second communication device and the mobile device is not made before the wireless connection between the first communication device and the mobile device is made. Therefore, in this wireless communication device, polling by the second communication device is started when the wireless connection between the first communication device and the mobile device detected by polling is completed. As a result, it is possible to reduce the dark current due to polling before the wireless connection between the first communication device and the mobile device is completed.
  • the vehicle equipped with the wireless communication device, and the wireless communication system the dark current can be reduced.
  • FIG. 1 is an overall block diagram of a wireless communication system according to the embodiment of the present disclosure.
  • the wireless communication system includes a vehicle 10 and a portable device 50.
  • the vehicle 10 includes an NFC communication device 12, a BLE (Bluetooth Low Energy, “Bluetooth” is a registered trademark) communication device 14, and a wireless controller 16.
  • the NFC communication device 12, the BLE communication device 14, and the wireless controller 16 constitute a wireless communication device that wirelessly communicates with the mobile device 50.
  • the NFC communication device 12 is a communication device that wirelessly communicates with the mobile device 50 by using a communication method according to the NFC standard.
  • the NFC communication device 12 operates by receiving power supplied from the battery 26, and performs NFC communication with the NFC communication device 52 of the mobile device 50 through an antenna (not shown).
  • the reader / writer function is implemented in the NFC communication device 12.
  • an inter-device communication (P2P) function may be implemented.
  • the NFC communication device 12 executes polling for detecting the mobile device 50 according to the instruction from the wireless controller 16. That is, the NFC communication device 12 transmits a request signal to the surroundings at regular intervals according to the NFC standard, and receives the response signal transmitted from the NFC communication device 52 of the mobile device 50 in response to the request signal. When the NFC communication device 12 receives the response signal, the NFC communication device 12 demodulates the authentication data (ID information) included in the response signal and outputs it to the wireless controller 16.
  • the BLE communication device 14 is a communication device that wirelessly communicates with the mobile device 50 using a communication method that conforms to the BLE communication standard.
  • the BLE communication device 14 also operates by receiving power supplied from the battery 26, and performs BLE communication with the BLE communication device 54 of the mobile device 50 through an antenna (not shown).
  • the communicable range of BLE communication is several meters or more, which is wider than the communicable range of NFC communication (about 10 cm).
  • the BLE communication device 14 also executes polling for detecting the mobile device 50 according to the instruction from the wireless controller 16. That is, the BLE communication device 14 transmits a request signal to the surroundings at regular intervals according to the BLE communication standard, and receives the response signal transmitted from the BLE communication device 54 of the mobile device 50 in response to the request signal. .. When the BLE communication device 14 receives the response signal, it demodulates the authentication data (ID information) included in the response signal and outputs it to the wireless controller 16.
  • the wireless controller 16 includes a processing device (not shown) and a memory 18, and controls the NFC communication device 12 and the BLE communication device 14. Specifically, when a predetermined polling condition is satisfied, the wireless controller 16 outputs a command instructing the BLE communication device 14 having a wide communicable range among the NFC communication device 12 and the BLE communication device 14 to execute polling (). Polling process).
  • the wireless controller 16 receives the ID information received and demodulated by the BLE communication device 14, the wireless controller 16 collates the ID information with the ID information stored in the memory 18 (authentication processing). Then, when the matching of the ID information is confirmed as a result of the collation, the authentication of the mobile device 50 is completed. As a result, the certified portable device 50 can be used to operate the door lock device 22 (unlock the door for getting on and off), start the engine (not shown), and the like.
  • the ID information stored in the memory 18 may be stored in the memory (not shown) of the vehicle control device 20, or may be stored in each of the NFC communication device 12 and the BLE communication device 14. good.
  • this communication establishment is also referred to as "BLE connection"
  • this communication establishment is also referred to as "BLE connection"
  • a command for instructing the NFC communication device 12 to execute polling is output. That is, in the wireless communication system according to the present embodiment, polling by the BLE communication device 14 starts when a predetermined polling condition is satisfied, and polling by the NFC communication device 12 starts when the BLE connection and authentication are completed. This point will be described in detail later.
  • the NFC communication device 12 receives the response signal transmitted from the NFC communication device 52 from the mobile device 50 in response to the polling by the NFC communication device 12 (hereinafter, the NFC communication device 12 receives the response signal).
  • the establishment of communication between the NFC communication devices 12 and 52 is also referred to as "NFC connection"), and it is assumed that the door lock device 22 has been unlocked using the portable device 50. Switches to the unlocked state.
  • the vehicle 10 further includes a vehicle control device 20, a door lock device 22, and a battery 26.
  • the door lock device 22 is configured to switch the door for getting on and off of the vehicle 10 between a locked state (locked state) and an unlocked state (unlocked state).
  • the vehicle control device 20 is configured to include a CPU (Central Processing Unit), a memory, a signal input / output port, and the like (none of them are shown).
  • the vehicle control device 20 controls the vehicle 10 in various ways. As an example, when the vehicle control device 20 receives a notification from the wireless controller 16 that the authentication of the mobile device 50 is completed, the vehicle control device 20 permits the operation of the door lock device 22 (door unlocking). Then, the vehicle control device 20 outputs an unlock command (unlock command) to the door lock device 22 according to the unlock request of the door for getting on and off, and a lock command (lock command) to the door lock device 22 according to the lock request of the door for getting on and off. ) Is output.
  • a CPU Central Processing Unit
  • the battery 26 is an auxiliary battery for the vehicle 10, and is composed of, for example, a lead storage battery.
  • the battery 26 supplies operating power to the NFC communication device 12, the BLE communication device 14, the wireless controller 16, and the vehicle control device 20.
  • the portable device 50 includes an NFC communication device 52, a BLE communication device 54, a control device 56, an input device 62, a display device 64, and a battery 66.
  • the NFC communication device 52 is a communication device that wirelessly communicates with the vehicle 10 using a communication method that conforms to the NFC standard.
  • the NFC communication device 52 performs NFC communication with the NFC communication device 12 of the vehicle 10 through an antenna (not shown).
  • the NFC communication device 52 includes a passive tag (IC tag) that is operated by radio waves from the NFC communication device 12. That is, the NFC communication device 52 operates by the radio wave received from the NFC communication device 12 without receiving the power supply from the battery 66. Therefore, the NFC communication device 52 can communicate with the NFC communication device 12 of the vehicle 10 even when the power of the mobile device 50 is turned off.
  • IC tag passive tag
  • the NFC communication device 52 Upon receiving the request signal emitted from the NFC communication device 12, the NFC communication device 52 generates and modulates a response signal including ID information unique to the mobile device 50 written in the passive tag (IC tag) to the vehicle. It is transmitted to 10 NFC communication devices 12.
  • the BLE communication device 54 is a communication device that wirelessly communicates with the vehicle 10 using a communication method that conforms to the BLE communication standard.
  • the BLE communication device 54 operates by receiving electric power from the battery 66, and performs BLE communication with the BLE communication device 14 of the vehicle 10 through an antenna (not shown).
  • the BLE communication device 54 When the BLE communication device 54 receives the request signal emitted from the BLE communication device 14, the BLE communication device 54 acquires the ID information unique to the mobile device 50 from the memory 60 of the control device 56. Then, the BLE communication device 54 generates and modulates a response signal including the acquired ID information, and transmits the response signal to the BLE communication device 14 of the vehicle 10.
  • the control device 56 includes a CPU 58, a memory 60, a signal input / output port (not shown), and the like.
  • the control device 56 controls the mobile device 50 in various ways.
  • the control device 56 reads the ID information of the portable device 50 stored in the memory 60 from the memory 60 and outputs the ID information to the BLE communication device 54 in accordance with the request from the BLE communication device 54.
  • the input device 62 is a device that receives various input operations of the user to the mobile device 50, and is, for example, a touch sensor that detects a touch operation on the display device 64 and various operation buttons provided on the mobile device 50.
  • the display device 64 displays various information of the mobile device 50, information corresponding to an input operation from the input device 62, and the like.
  • the input device 62 and the display device 64 may be integrally configured by a touch panel sensor.
  • the battery 66 is a rechargeable and dischargeable secondary battery, and is composed of, for example, a lithium ion secondary battery.
  • the battery 66 can be charged by an external power source using a charging device (not shown). Then, the battery 66 supplies the operating power to the BLE communication device 54, the control device 56, the input device 62, and the display device 64.
  • the NFC communication device 52 is configured to include a passive tag that operates by radio waves from the NFC communication device 12, so that power is not supplied from the battery 66.
  • NFC communication between NFC communication devices 12 and 52 and BLE communication between BLE communication devices 14 and 54 are possible.
  • NFC communication and BLE communication as shown in FIG. 2, the communicable range of BLE communication is wider than the communicable range of NFC communication.
  • BLE communication is impossible because the operating power is not supplied from the battery 66 to the BLE communication device 54 when the power of the mobile device 50 is turned off, but NFC communication does not require the power supply from the battery 66. Since it is a passive type, communication is possible regardless of the power state of the mobile device 50.
  • the door lock device 22 when the authentication of the mobile device 50 is completed through BLE communication, the door lock device 22 can be locked / unlocked by performing an operation such as touching a sensor provided on the door knob. Further, in the wireless communication system according to this embodiment, in addition to the above operation, the door lock device 22 can be operated by using the portable device 50. Specifically, the door lock device 22 can be locked / unlocked by holding the mobile device 50 over a predetermined position where the NFC communication device 12 is provided in the vehicle 10 to form an NFC connection.
  • the NFC communication device 12 and the BLE communication device 14 of the vehicle 10 detect the mobile device 50.
  • Polling is done.
  • radio waves request signals
  • the dark current associated with this polling is large, problems such as the battery 26 being unintentionally exhausted may occur.
  • the wireless controller 16 starts polling by the NFC communication device 12. Since the communicable range of BLE communication is wider than the communicable range of NFC communication, the NFC connection is not performed before the BLE connection. Therefore, in the present embodiment, polling by the NFC communication device 12 is started when the BLE connection is completed. This makes it possible to reduce the dark current due to polling before the BLE connection is completed.
  • NFC polling polling by the NFC communication device 12
  • BLE polling polling by the BLE communication device 14
  • the NFC polling stop conditions are, for example, when the BLE connection is cut off, when the boarding of the user is confirmed, when the ignition key or the like is turned on to enter the Ready-ON state, or when the vehicle 10 starts running. Etc. can be established.
  • FIG. 3 is a timing chart showing an example of polling by the BLE communication device 14 and the NFC communication device 12 of the vehicle 10.
  • the polling condition is satisfied at the time t0, and the request signal is transmitted from the BLE communication device 14 toward the surroundings (BLE polling).
  • the polling condition can be satisfied, for example, when the ignition key or the like is turned off to enter the Ready-OFF state, and the passenger gets off and the door is locked. Even before the time t0, the request signal is transmitted at regular intervals after the polling condition is satisfied.
  • the response signal transmitted from the BLE communication device 54 of the portable device 50 in response to the request signal transmitted from the BLE communication device 14 is received by the BLE communication device 14, and the radio between the BLE communication devices 14 and 54 is received. Connection (BLE connection) is completed.
  • BLE connection connection
  • the wireless controller 16 When the BLE connection and the authentication of the mobile device 50 are completed, the wireless controller 16 outputs a polling start command to the NFC communication device 12, and the NFC polling starts.
  • the NFC polling When the NFC polling is started, the user of the vehicle 10 releases the door lock device 22 by holding the mobile device 50 over the predetermined position where the NFC communication device 12 is provided in the vehicle 10 to form an NFC connection. It can be switched to the locked state (unlocked state). Then, according to the wireless communication system according to this embodiment, the NFC polling is stopped until the BLE connection is completed, so that the dark current due to the polling can be reduced.
  • FIG. 4 is a flowchart showing an example of a processing procedure executed by the wireless controller 16 of the vehicle 10. The series of processes shown in this flowchart are repeatedly executed at predetermined intervals.
  • the wireless controller 16 determines whether or not the polling condition for the BLE communication device 14 to execute polling is satisfied (step S10).
  • the polling condition can be satisfied, for example, when the vehicle 10 is in the Ready-OFF state and the door is locked after the passenger gets off the vehicle. If the polling condition is not satisfied (NO in step S10), the process shifts to return.
  • step S10 When it is determined in step S10 that the polling condition is satisfied (YES in step S10), the wireless controller 16 outputs a command instructing the BLE communication device 14 to execute polling (step S20). As a result, the BLE communication device 14 transmits a request signal to the surroundings at regular intervals.
  • the wireless controller 16 determines whether or not communication is established between the BLE communication devices 14 and 54 (BLE connection) and the authentication of the mobile device 50 is completed through the BLE communication (step S30). Specifically, the response signal transmitted from the BLE communication device 54 of the mobile device 50 in response to the request signal from the BLE communication device 14 is received by the BLE communication device 14, and the ID information included in the response signal is collated. Based on the result, it is determined whether or not the authentication of the portable device 50 is completed.
  • step S30 when it is determined in step S30 that the BLE connection and the authentication of the mobile device 50 are completed (YES in step S30), the wireless controller 16 outputs a command instructing the NFC communication device 12 to execute polling. (Step S40). That is, the NFC polling starts when the BLE connection and the authentication of the mobile device 50 are completed.
  • the wireless controller 16 determines whether or not there is a request to unlock the door lock device 22 (step S50). Specifically, in the wireless controller 16, whether the communication is established between the NFC communication devices 12 and 52 by the user holding the mobile device 50 over the predetermined position where the NFC communication device 12 is provided in the vehicle 10. That is, it is confirmed whether the NFC connection is formed, and when the NFC connection is confirmed, it is determined that the unlocking of the door lock device 22 is requested.
  • step S50 when it is determined in step S50 that the door lock device 22 has been requested to be unlocked (YES in step S50), the wireless controller 16 instructs the vehicle control device 20 to unlock the boarding door. , The door lock device 22 is switched to the unlocked state (step S60). Although not shown in particular, the door lock device 22 can be switched to the unlocked state by the user performing an operation such as touching a sensor provided on the door knob.
  • step S30 If the BLE connection and authentication are not completed in step S30 (NO in step S30), or if there is no unlock request for the door lock device 22 in step S50 (NO in step S50), the process shifts to return. Will be done.
  • the polling by the NFC communication device 12 is started. .. Therefore, according to the present embodiment, it is possible to reduce the dark current due to polling before the BLE connection by the BLE communication devices 14 and 54 is completed.
  • the portable device 50 is placed at a predetermined position of the vehicle 10. Since it is also possible to hold it over, the options for unlocking the door will increase and convenience will improve.
  • the NFC polling is started when the BLE connection and the authentication of the mobile device 50 are completed.
  • the NFC polling is started when the BLE connection is completed. You may. In this case, the NFC side may perform the authentication.
  • FIG. 5 is a flowchart showing an example of a processing procedure executed by the wireless controller 16 in this modified example. The series of processes shown in this flowchart are also repeatedly executed at predetermined intervals.
  • steps S110 and S120 are the same as the processes of steps S10 and S20 shown in FIG. 4, respectively.
  • the wireless controller 16 determines whether or not the communication is established between the BLE communication devices 14 and 54, that is, whether or not the BLE connection is formed. (Step S130). Specifically, when a response signal is transmitted from the BLE communication device 54 of the mobile device 50 in response to the request signal from the BLE communication device 14 and the response signal is received by the BLE communication device 14, a BLE connection is formed. It is judged that it is a Bluetooth.
  • step S130 When it is determined in step S130 that the BLE connection has been formed (YES in step S130), the wireless controller 16 outputs a command instructing the NFC communication device 12 to execute polling (step S140). That is, in this modification, NFC polling starts only when the BLE connection is formed.
  • the wireless controller 16 determines whether or not the communication is established between the NFC communication devices 12 and 52 (NFC connection) and the authentication of the mobile device 50 is completed through the NFC communication (step S150). Specifically, the response signal transmitted from the NFC communication device 52 of the mobile device 50 in response to the request signal from the NFC communication device 12 is received by the NFC communication device 12, and the ID information included in the response signal is collated. Based on the result, it is determined whether or not the authentication of the mobile device 50 is completed.
  • step S150 determines whether or not there is a request to unlock the door lock device 22.
  • Determine For example, when the user holds the mobile device 50 at a predetermined position where the NFC communication device 12 is provided in the vehicle 10 and the communication between the NFC communication devices 12 and 52 continues for a predetermined time or longer, the wireless controller 16 may be used. It is determined that the door lock device 22 has been requested to be unlocked.
  • step S160 when it is determined in step S160 that the door lock device 22 has been requested to be unlocked (YES in step S160), the wireless controller 16 instructs the vehicle control device 20 to unlock the boarding door. , The door lock device 22 is switched to the unlocked state (step S170).
  • the door lock device 22 can also be operated by the user touching the sensor provided on the doorknob. Can be switched to the unlocked state.
  • step S130 If the BLE connection is not formed in step S130 (NO in step S130), the NFC connection and the authentication of the mobile device 50 are not completed in step S150 (NO in step S150), or the door lock is performed in step S160. If there is no unlock request for the device 22 (NO in step S160), the process shifts to return.
  • the NFC communication device 52 is mounted on the mobile device 50, but the NFC communication device 52 is a card or the like that does not have a power supply and is different from the mobile device 50. It may be mounted on.
  • the wireless controller 16 is provided separately from the vehicle control device 20, but the vehicle control device 20 may have the function of the wireless controller 16. ..
  • a UWB communication device that performs wireless communication using a communication method that conforms to an ultra-wideband (UWB (Ultra Wide Band)) communication standard is used. It may be provided for both the vehicle 10 and the portable device 50. Further, in addition to the BLE communication devices 14 and 54, the UWB communication device may be provided in both the vehicle 10 and the portable device 50.
  • UWB Ultra Wide Band
  • the NFC communication device 12, the BLE communication device 14, and the wireless controller 16 are mounted on the vehicle 10, but the range of the present disclosure is mounted on the vehicle. It is not limited to wireless communication devices.
  • the NFC communication device 12, the BLE communication device 14, and the wireless controller 16 may be provided in the house or the delivery box, and the portable device 50 may be used as a key for unlocking the door of the house or the delivery box.
  • the wireless communication device in one embodiment includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices.
  • the communicable distance of the first communicator is longer than the communicable distance of the second communicator.
  • Each of the first and second communication devices is configured to perform polling to detect a mobile device capable of wireless communication.
  • the controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
  • the wireless communication system in one aspect includes a wireless communication device and a portable device that performs wireless communication with the wireless communication device.
  • the wireless communication device includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices.
  • the communicable distance of the first communicator is longer than the communicable distance of the second communicator.
  • Each of the first and second communicators is configured to poll to detect a mobile device.
  • the controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
  • the second communication device may be an NFC communication device that uses a communication method that conforms to the NFC standard.
  • the first communication device may include at least one of a BLE communication device that uses a communication method that conforms to the BLE communication standard and a UWB communication device that uses a communication method that conforms to the UWB communication standard.
  • the above wireless communication device includes first and second communication devices, and the communication range of the first communication device is longer than the communication range of the second communication device. Therefore, the connection between the second communication device and the mobile device is not made before the wireless connection between the first communication device and the mobile device is made. Therefore, in this wireless communication device, polling by the second communication device is started when the wireless connection between the first communication device and the mobile device detected by polling is completed. As a result, it is possible to reduce the dark current due to polling before the wireless connection between the first communication device and the mobile device is completed.
  • the controller starts polling by the second communication device, and the second communication device and the mobile device detected by the polling are connected to each other.
  • a command for instructing the execution of a predetermined function may be output.
  • the predetermined function can be executed by the wireless connection between the second communication device and the mobile device.
  • the controller starts polling by the second communication device, and wireless connection and authentication with the mobile device in the second communication device.
  • a command permitting the execution of a predetermined function may be output.
  • this wireless communication device polling by the second communication device is started and authentication is performed by the second communication device as long as the wireless connection with the mobile device is completed in the first communication device. As a result, it is possible to avoid a situation in which polling by the second communication device is not started because the authentication is not completed in the first communication device.
  • the wireless communication device is mounted on the vehicle, and the function permitted by the authentication may include unlocking the door of the vehicle using a portable device.
  • the door of the vehicle is unlocked by using the portable device through the second communication device. You can also do it.

Abstract

A vehicle (10) comprises: an NFC communication device (12) using a communication system conforming to the NFC standard; a BLE communication device (14) using a communication system conforming to the BLE communication standard; and a wireless controller (16). The communicable distance of the BLE communication device (14) is longer than the communicable distance of the NFC communication device (12). Each of the NFC communication device (12) and the BLE communication device (14) is configured to perform polling for sensing a portable device (50). When a wireless connection between the BLE communication device (14) and the portable device (50) is completed, the wireless controller (16) starts polling by the NFC communication device (12).

Description

無線通信装置及びそれを備える車両並びに無線通信システムWireless communication device, vehicle equipped with it, and wireless communication system
　本開示は、無線通信装置及びそれを備える車両並びに無線通信システムに関する。 The present disclosure relates to a wireless communication device, a vehicle equipped with the wireless communication device, and a wireless communication system.
　スマートフォン等の携帯機器を用いて車両や住宅等のドアの解錠及び施錠等を行なう技術が知られている。たとえば、特開２０１３－１００６４５号公報（特許文献１）には、双方向に通信可能な携帯機器及び車載通信機を備える無線通信システムが開示されている。この無線通信システムでは、近距離無線通信（たとえば、ＮＦＣ（Near　Field　Communication）の規格に従う通信方式を用いる無線通信であり、以下「ＮＦＣ通信」或いは単に「ＮＦＣ」等と称する。）等を用いて、携帯機器と車載通信機との間で無線通信が行なわれ、携帯機器から車両ドアの解錠及び施錠又はエンジンの始動を行なうことができる（特許文献１参照）。 The technology for unlocking and locking the doors of vehicles and houses using mobile devices such as smartphones is known. For example, Japanese Patent Application Laid-Open No. 2013-160465 (Patent Document 1) discloses a wireless communication system including a portable device capable of bidirectional communication and an in-vehicle communication device. In this wireless communication system, short-range wireless communication (for example, wireless communication using a communication method according to the standard of NFC (Near Field Communication), hereinafter referred to as "NFC communication" or simply "NFC") or the like is used. , Wireless communication is performed between the portable device and the in-vehicle communication device, and the vehicle door can be unlocked and locked or the engine can be started from the portable device (see Patent Document 1).
特開２０１３－１００６４５号公報Japanese Unexamined Patent Publication No. 2013-100645
　上記のような無線通信システムでは、携帯機器を所持する利用者が車両等に近づいたことを検知するために、車両等に設けられる通信機において、携帯機器を検知するためのポーリングが行なわれる。このポーリングに伴なう暗電流が大きいと、通信機へ作動電力を供給するバッテリが意図せず枯渇する等の問題が生じる可能性がある。 In the wireless communication system as described above, in order to detect that the user who owns the mobile device has approached the vehicle or the like, polling is performed to detect the mobile device in the communication device provided in the vehicle or the like. If the dark current associated with this polling is large, there is a possibility that the battery that supplies the operating power to the communication device will be unintentionally exhausted.
　本開示は、かかる問題を解決するためになされたものであり、本開示の目的は、携帯機器と無線通信を行なう通信機を備える無線通信装置及びそれを備える車両並びに無線通信システムにおいて、暗電流を低減することである。 The present disclosure has been made to solve such a problem, and an object of the present disclosure is a dark current in a wireless communication device including a communication device for wireless communication with a mobile device, a vehicle equipped with the communication device, and a wireless communication system. Is to reduce.
　本開示の無線通信装置は、互いに異なる通信方式を用いて無線通信を行なう第１及び第２の通信機と、第１及び第２の通信機を制御するコントローラとを備える。第１の通信機の通信可能距離は、第２の通信機の通信可能距離よりも長い。第１及び第２の通信機の各々は、無線通信可能な携帯機器を検知するためのポーリングを行なうように構成される。コントローラは、第１の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始する。 The wireless communication device of the present disclosure includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices. The communicable distance of the first communicator is longer than the communicable distance of the second communicator. Each of the first and second communication devices is configured to perform polling to detect a mobile device capable of wireless communication. The controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
　また、本開示の無線通信システムは、無線通信装置と、無線通信装置と無線通信を行なう携帯機器とを備える。無線通信装置は、互いに異なる通信方式を用いて無線通信を行なう第１及び第２の通信機と、第１及び第２の通信機を制御するコントローラとを含む。第１の通信機の通信可能距離は、第２の通信機の通信可能距離よりも長い。第１及び第２の通信機の各々は、携帯機器を検知するためのポーリングを行なうように構成される。コントローラは、第１の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始する。 Further, the wireless communication system of the present disclosure includes a wireless communication device and a portable device that performs wireless communication with the wireless communication device. The wireless communication device includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices. The communicable distance of the first communicator is longer than the communicable distance of the second communicator. Each of the first and second communicators is configured to poll to detect a mobile device. The controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
　上記の無線通信装置は、第１及び第２の通信機を備えており、第１の通信機の通信可能距離は、第２の通信機の通信可能距離よりも長い。そのため、第１の通信機と携帯機器との無線による接続が行なわれる前に、第２の通信機と当該携帯機器との接続が行なわれることはない。そこで、この無線通信装置では、第１の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始する。これにより、第１の通信機と当該携帯機器との無線による接続が完了する前の、ポーリングによる暗電流を低減することができる。 The above wireless communication device includes first and second communication devices, and the communication range of the first communication device is longer than the communication range of the second communication device. Therefore, the connection between the second communication device and the mobile device is not made before the wireless connection between the first communication device and the mobile device is made. Therefore, in this wireless communication device, polling by the second communication device is started when the wireless connection between the first communication device and the mobile device detected by polling is completed. As a result, it is possible to reduce the dark current due to polling before the wireless connection between the first communication device and the mobile device is completed.
　本開示の無線通信装置及びそれを備える車両並びに無線通信システムによれば、暗電流を低減することができる。 According to the wireless communication device of the present disclosure, the vehicle equipped with the wireless communication device, and the wireless communication system, the dark current can be reduced.
本開示の実施の形態に従う無線通信システムの全体ブロック図である。It is an overall block diagram of the wireless communication system according to the embodiment of this disclosure. ＢＬＥ通信及びＮＦＣ通信の通信可能範囲を示す図である。It is a figure which shows the communicable range of BLE communication and NFC communication. 車両のＢＬＥ通信機及びＮＦＣ通信機によるポーリングの一例を示すタイミングチャートである。It is a timing chart which shows an example of polling by a BLE communication device and an NFC communication device of a vehicle. 車両の無線コントローラにより実行される処理の手順の一例を示すフローチャートである。It is a flowchart which shows an example of the procedure of the process executed by the wireless controller of a vehicle. 変形例における無線コントローラにより実行される処理の手順の一例を示すフローチャートである。It is a flowchart which shows an example of the procedure of the process executed by the wireless controller in the modification.
　以下、本開示の実施の形態について、図面を参照しながら詳細に説明する。なお、図中同一又は相当部分には同一符号を付してその説明は繰り返さない。 Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated.
　図１は、本開示の実施の形態に従う無線通信システムの全体ブロック図である。図１を参照して、無線通信システムは、車両１０と、携帯機器５０とを備える。車両１０は、ＮＦＣ通信機１２と、ＢＬＥ（Bluetooth　Low　Energy、「Bluetooth」は登録商標）通信機１４と、無線コントローラ１６とを含む。ＮＦＣ通信機１２、ＢＬＥ通信機１４、及び無線コントローラ１６は、携帯機器５０と無線通信を行なう無線通信装置を構成する。 FIG. 1 is an overall block diagram of a wireless communication system according to the embodiment of the present disclosure. With reference to FIG. 1, the wireless communication system includes a vehicle 10 and a portable device 50. The vehicle 10 includes an NFC communication device 12, a BLE (Bluetooth Low Energy, “Bluetooth” is a registered trademark) communication device 14, and a wireless controller 16. The NFC communication device 12, the BLE communication device 14, and the wireless controller 16 constitute a wireless communication device that wirelessly communicates with the mobile device 50.
　ＮＦＣ通信機１２は、ＮＦＣ規格に従う通信方式を用いて携帯機器５０と無線通信を行なう通信機である。ＮＦＣ通信機１２は、バッテリ２６から電力の供給を受けて作動し、図示しないアンテナを通じて、携帯機器５０のＮＦＣ通信機５２との間でＮＦＣ通信を行なう。ＮＦＣ通信機１２には、ＮＦＣ通信機能のうち、少なくともリーダライタ機能が実装される。リーダライタ機能に加えて機器間通信（Ｐ２Ｐ）機能が実装されてもよい。 The NFC communication device 12 is a communication device that wirelessly communicates with the mobile device 50 by using a communication method according to the NFC standard. The NFC communication device 12 operates by receiving power supplied from the battery 26, and performs NFC communication with the NFC communication device 52 of the mobile device 50 through an antenna (not shown). Of the NFC communication functions, at least the reader / writer function is implemented in the NFC communication device 12. In addition to the reader / writer function, an inter-device communication (P2P) function may be implemented.
　ＮＦＣ通信機１２は、無線コントローラ１６からの指示に従って、携帯機器５０を検知するためのポーリングを実行する。すなわち、ＮＦＣ通信機１２は、ＮＦＣ規格に従って、周囲に対して一定期間毎にリクエスト信号を送信し、リクエスト信号に応答して携帯機器５０のＮＦＣ通信機５２から送信されるレスポンス信号を受信する。ＮＦＣ通信機１２は、レスポンス信号を受信すると、レスポンス信号に含まれる認証データ（ＩＤ情報）を復調して無線コントローラ１６へ出力する。 The NFC communication device 12 executes polling for detecting the mobile device 50 according to the instruction from the wireless controller 16. That is, the NFC communication device 12 transmits a request signal to the surroundings at regular intervals according to the NFC standard, and receives the response signal transmitted from the NFC communication device 52 of the mobile device 50 in response to the request signal. When the NFC communication device 12 receives the response signal, the NFC communication device 12 demodulates the authentication data (ID information) included in the response signal and outputs it to the wireless controller 16.
　ＢＬＥ通信機１４は、ＢＬＥ通信規格に従う通信方式を用いて携帯機器５０と無線通信を行なう通信機である。ＢＬＥ通信機１４も、バッテリ２６から電力の供給を受けて作動し、図示しないアンテナを通じて、携帯機器５０のＢＬＥ通信機５４との間でＢＬＥ通信を行なう。ＢＬＥ通信の通信可能範囲は数ｍ以上であり、ＮＦＣ通信の通信可能範囲（１０ｃｍ程度）よりも広い。 The BLE communication device 14 is a communication device that wirelessly communicates with the mobile device 50 using a communication method that conforms to the BLE communication standard. The BLE communication device 14 also operates by receiving power supplied from the battery 26, and performs BLE communication with the BLE communication device 54 of the mobile device 50 through an antenna (not shown). The communicable range of BLE communication is several meters or more, which is wider than the communicable range of NFC communication (about 10 cm).
　ＢＬＥ通信機１４も、無線コントローラ１６からの指示に従って、携帯機器５０を検知するためのポーリングを実行する。すなわち、ＢＬＥ通信機１４は、ＢＬＥ通信規格に従って、周囲に対して一定期間毎にリクエスト信号を送信し、リクエスト信号に応答して携帯機器５０のＢＬＥ通信機５４から送信されるレスポンス信号を受信する。ＢＬＥ通信機１４は、レスポンス信号を受信すると、レスポンス信号に含まれる認証データ（ＩＤ情報）を復調して無線コントローラ１６へ出力する。 The BLE communication device 14 also executes polling for detecting the mobile device 50 according to the instruction from the wireless controller 16. That is, the BLE communication device 14 transmits a request signal to the surroundings at regular intervals according to the BLE communication standard, and receives the response signal transmitted from the BLE communication device 54 of the mobile device 50 in response to the request signal. .. When the BLE communication device 14 receives the response signal, it demodulates the authentication data (ID information) included in the response signal and outputs it to the wireless controller 16.
　無線コントローラ１６は、図示しない処理装置と、メモリ１８とを含んで構成され、ＮＦＣ通信機１２及びＢＬＥ通信機１４を制御する。具体的には、無線コントローラ１６は、所定のポーリング条件が成立すると、ＮＦＣ通信機１２及びＢＬＥ通信機１４のうち通信可能範囲の広いＢＬＥ通信機１４へポーリングの実行を指示する指令を出力する（ポーリング処理）。 The wireless controller 16 includes a processing device (not shown) and a memory 18, and controls the NFC communication device 12 and the BLE communication device 14. Specifically, when a predetermined polling condition is satisfied, the wireless controller 16 outputs a command instructing the BLE communication device 14 having a wide communicable range among the NFC communication device 12 and the BLE communication device 14 to execute polling (). Polling process).
　また、無線コントローラ１６は、ＢＬＥ通信機１４により受信され復調されたＩＤ情報を受けると、そのＩＤ情報をメモリ１８に記憶されているＩＤ情報と照合する（認証処理）。そして、照合の結果、ＩＤ情報の一致が確認されると、携帯機器５０の認証が完了する。これにより、認証された携帯機器５０を用いて、ドアロック装置２２の操作（乗降用ドアの解施錠）やエンジン（図示せず）の始動等が可能となる。なお、メモリ１８に記憶されているＩＤ情報は、車両制御装置２０のメモリ（図示せず）に記憶されていてもよいし、ＮＦＣ通信機１２及びＢＬＥ通信機１４の各々に記憶されていてもよい。 Further, when the wireless controller 16 receives the ID information received and demodulated by the BLE communication device 14, the wireless controller 16 collates the ID information with the ID information stored in the memory 18 (authentication processing). Then, when the matching of the ID information is confirmed as a result of the collation, the authentication of the mobile device 50 is completed. As a result, the certified portable device 50 can be used to operate the door lock device 22 (unlock the door for getting on and off), start the engine (not shown), and the like. The ID information stored in the memory 18 may be stored in the memory (not shown) of the vehicle control device 20, or may be stored in each of the NFC communication device 12 and the BLE communication device 14. good.
　また、無線コントローラ１６は、ＢＬＥ通信機１４が携帯機器５０からレスポンス信号を受信することでＢＬＥ通信機１４，５４間の通信が確立し（以下、この通信確立を「ＢＬＥ接続」とも称する。）、当該レスポンス信号により携帯機器５０の認証が完了すると、ＮＦＣ通信機１２へポーリングの実行を指示する指令を出力する。すなわち、本実施の形態に従う無線通信システムでは、所定のポーリング条件が成立すると、ＢＬＥ通信機１４によるポーリングが開始し、ＢＬＥ接続及び認証が完了すると、ＮＦＣ通信機１２によるポーリングが開始する。この点については、後ほど詳しく説明する。 Further, in the wireless controller 16, communication between the BLE communication devices 14 and 54 is established when the BLE communication device 14 receives a response signal from the mobile device 50 (hereinafter, this communication establishment is also referred to as "BLE connection"). When the authentication of the mobile device 50 is completed by the response signal, a command for instructing the NFC communication device 12 to execute polling is output. That is, in the wireless communication system according to the present embodiment, polling by the BLE communication device 14 starts when a predetermined polling condition is satisfied, and polling by the NFC communication device 12 starts when the BLE connection and authentication are completed. This point will be described in detail later.
　そして、ＮＦＣ通信機１２によるポーリングに応答して携帯機器５０からのＮＦＣ通信機５２から送信されたレスポンス信号をＮＦＣ通信機１２が受信すると（以下では、ＮＦＣ通信機１２がレスポンス信号を受信することでＮＦＣ通信機１２，５２間の通信が確立することを「ＮＦＣ接続」とも称する。）、携帯機器５０を用いてドアロック装置２２の解錠操作が行なわれたものとされ、ドアロック装置２２が解錠状態に切り替わる。 Then, when the NFC communication device 12 receives the response signal transmitted from the NFC communication device 52 from the mobile device 50 in response to the polling by the NFC communication device 12 (hereinafter, the NFC communication device 12 receives the response signal). The establishment of communication between the NFC communication devices 12 and 52 is also referred to as "NFC connection"), and it is assumed that the door lock device 22 has been unlocked using the portable device 50. Switches to the unlocked state.
　車両１０は、さらに、車両制御装置２０と、ドアロック装置２２と、バッテリ２６とを含む。ドアロック装置２２は、車両１０の乗降用ドアを施錠状態（ロック状態）と解錠状態（アンロック状態）とのいずれかに切り替えるように構成される。 The vehicle 10 further includes a vehicle control device 20, a door lock device 22, and a battery 26. The door lock device 22 is configured to switch the door for getting on and off of the vehicle 10 between a locked state (locked state) and an unlocked state (unlocked state).
　車両制御装置２０は、ＣＰＵ（Central　Processing　Unit）、メモリ、信号入出力ポート等を含んで構成される（いずれも図示せず）。車両制御装置２０は、車両１０の各種制御を行なう。一例として、車両制御装置２０は、携帯機器５０の認証が完了した旨の通知を無線コントローラ１６から受けると、ドアロック装置２２の操作（ドアの解施錠）を許可する。そして、車両制御装置２０は、乗降用ドアの解錠要求に従ってドアロック装置２２へ解錠指令（アンロック指令）を出力し、乗降用ドアの施錠要求に従ってドアロック装置２２へ施錠指令（ロック指令）を出力する。 The vehicle control device 20 is configured to include a CPU (Central Processing Unit), a memory, a signal input / output port, and the like (none of them are shown). The vehicle control device 20 controls the vehicle 10 in various ways. As an example, when the vehicle control device 20 receives a notification from the wireless controller 16 that the authentication of the mobile device 50 is completed, the vehicle control device 20 permits the operation of the door lock device 22 (door unlocking). Then, the vehicle control device 20 outputs an unlock command (unlock command) to the door lock device 22 according to the unlock request of the door for getting on and off, and a lock command (lock command) to the door lock device 22 according to the lock request of the door for getting on and off. ) Is output.
　バッテリ２６は、車両１０の補機用バッテリであり、たとえば鉛蓄電池によって構成される。バッテリ２６は、ＮＦＣ通信機１２、ＢＬＥ通信機１４、無線コントローラ１６、及び車両制御装置２０へ作動電力を供給する。 The battery 26 is an auxiliary battery for the vehicle 10, and is composed of, for example, a lead storage battery. The battery 26 supplies operating power to the NFC communication device 12, the BLE communication device 14, the wireless controller 16, and the vehicle control device 20.
　携帯機器５０は、ＮＦＣ通信機５２と、ＢＬＥ通信機５４と、制御装置５６と、入力装置６２と、表示装置６４と、バッテリ６６とを含む。 The portable device 50 includes an NFC communication device 52, a BLE communication device 54, a control device 56, an input device 62, a display device 64, and a battery 66.
　ＮＦＣ通信機５２は、ＮＦＣ規格に従う通信方式を用いて車両１０と無線通信を行なう通信機である。ＮＦＣ通信機５２は、図示しないアンテナを通じて、車両１０のＮＦＣ通信機１２との間でＮＦＣ通信を行なう。ＮＦＣ通信機５２は、ＮＦＣ通信機１２からの電波によって作動するパッシブタグ（ＩＣタグ）を含んで構成される。すなわち、ＮＦＣ通信機５２は、バッテリ６６から電力の供給を受けずに、ＮＦＣ通信機１２から受ける電波によって作動する。したがって、ＮＦＣ通信機５２は、携帯機器５０の電源がオフされた状態であっても、車両１０のＮＦＣ通信機１２と通信を行なうことができる。 The NFC communication device 52 is a communication device that wirelessly communicates with the vehicle 10 using a communication method that conforms to the NFC standard. The NFC communication device 52 performs NFC communication with the NFC communication device 12 of the vehicle 10 through an antenna (not shown). The NFC communication device 52 includes a passive tag (IC tag) that is operated by radio waves from the NFC communication device 12. That is, the NFC communication device 52 operates by the radio wave received from the NFC communication device 12 without receiving the power supply from the battery 66. Therefore, the NFC communication device 52 can communicate with the NFC communication device 12 of the vehicle 10 even when the power of the mobile device 50 is turned off.
　ＮＦＣ通信機５２は、ＮＦＣ通信機１２から発せられるリクエスト信号を受信すると、パッシブタグ（ＩＣタグ）に書き込まれている当該携帯機器５０に固有のＩＤ情報を含むレスポンス信号を生成し変調して車両１０のＮＦＣ通信機１２へ送信する。 Upon receiving the request signal emitted from the NFC communication device 12, the NFC communication device 52 generates and modulates a response signal including ID information unique to the mobile device 50 written in the passive tag (IC tag) to the vehicle. It is transmitted to 10 NFC communication devices 12.
　ＢＬＥ通信機５４は、ＢＬＥ通信規格に従う通信方式を用いて車両１０と無線通信を行なう通信機である。ＢＬＥ通信機５４は、バッテリ６６から電力の供給を受けて作動し、図示しないアンテナを通じて車両１０のＢＬＥ通信機１４との間でＢＬＥ通信を行なう。 The BLE communication device 54 is a communication device that wirelessly communicates with the vehicle 10 using a communication method that conforms to the BLE communication standard. The BLE communication device 54 operates by receiving electric power from the battery 66, and performs BLE communication with the BLE communication device 14 of the vehicle 10 through an antenna (not shown).
　ＢＬＥ通信機５４は、ＢＬＥ通信機１４から発せられるリクエスト信号を受信すると、当該携帯機器５０に固有のＩＤ情報を制御装置５６のメモリ６０から取得する。そして、ＢＬＥ通信機５４は、その取得されたＩＤ情報を含むレスポンス信号を生成し変調して車両１０のＢＬＥ通信機１４へ送信する。 When the BLE communication device 54 receives the request signal emitted from the BLE communication device 14, the BLE communication device 54 acquires the ID information unique to the mobile device 50 from the memory 60 of the control device 56. Then, the BLE communication device 54 generates and modulates a response signal including the acquired ID information, and transmits the response signal to the BLE communication device 14 of the vehicle 10.
　制御装置５６は、ＣＰＵ５８、メモリ６０、信号入出力ポート（図示せず）等を含んで構成される。制御装置５６は、携帯機器５０の各種制御を行なう。一例として、制御装置５６は、ＢＬＥ通信機５４からの要求に従って、メモリ６０に記憶されている当該携帯機器５０のＩＤ情報をメモリ６０から読み出してＢＬＥ通信機５４へ出力する。 The control device 56 includes a CPU 58, a memory 60, a signal input / output port (not shown), and the like. The control device 56 controls the mobile device 50 in various ways. As an example, the control device 56 reads the ID information of the portable device 50 stored in the memory 60 from the memory 60 and outputs the ID information to the BLE communication device 54 in accordance with the request from the BLE communication device 54.
　入力装置６２は、携帯機器５０に対する利用者の各種入力操作を受け付ける装置であり、たとえば、表示装置６４上のタッチ操作を検出するタッチセンサや、携帯機器５０に設けられる各種操作ボタンである。表示装置６４は、携帯機器５０の各種情報や、入力装置６２からの入力操作に応じた情報等を表示する。入力装置６２及び表示装置６４は、タッチパネルセンサによって一体的に構成してもよい。 The input device 62 is a device that receives various input operations of the user to the mobile device 50, and is, for example, a touch sensor that detects a touch operation on the display device 64 and various operation buttons provided on the mobile device 50. The display device 64 displays various information of the mobile device 50, information corresponding to an input operation from the input device 62, and the like. The input device 62 and the display device 64 may be integrally configured by a touch panel sensor.
　バッテリ６６は、充放電可能な二次電池であり、たとえばリチウムイオン二次電池によって構成される。バッテリ６６は、図示しない充電装置を用いて外部の電源により充電することができる。そして、バッテリ６６は、ＢＬＥ通信機５４、制御装置５６、入力装置６２、及び表示装置６４へ作動電力を供給する。 The battery 66 is a rechargeable and dischargeable secondary battery, and is composed of, for example, a lithium ion secondary battery. The battery 66 can be charged by an external power source using a charging device (not shown). Then, the battery 66 supplies the operating power to the BLE communication device 54, the control device 56, the input device 62, and the display device 64.
　なお、ＮＦＣ通信機５２は、上述のように、ＮＦＣ通信機１２からの電波によって作動するパッシブタグを含んで構成されるため、バッテリ６６から電力の供給を受けない。 As described above, the NFC communication device 52 is configured to include a passive tag that operates by radio waves from the NFC communication device 12, so that power is not supplied from the battery 66.
　上記の無線通信システムでは、ＮＦＣ通信機１２，５２間のＮＦＣ通信と、ＢＬＥ通信機１４，５４間のＢＬＥ通信とが可能である。ＮＦＣ通信とＢＬＥ通信とについては、図２に示されるように、ＢＬＥ通信の通信可能範囲の方が、ＮＦＣ通信の通信可能範囲よりも広い。一方、ＢＬＥ通信は、携帯機器５０の電源がオフされた状態ではバッテリ６６からＢＬＥ通信機５４へ作動電力が供給されないので不可であるけれども、ＮＦＣ通信は、バッテリ６６からの電力供給を必要としないパッシブタイプであるので、携帯機器５０の電源状態に拘わらず通信可能である。 In the above wireless communication system, NFC communication between NFC communication devices 12 and 52 and BLE communication between BLE communication devices 14 and 54 are possible. Regarding NFC communication and BLE communication, as shown in FIG. 2, the communicable range of BLE communication is wider than the communicable range of NFC communication. On the other hand, BLE communication is impossible because the operating power is not supplied from the battery 66 to the BLE communication device 54 when the power of the mobile device 50 is turned off, but NFC communication does not require the power supply from the battery 66. Since it is a passive type, communication is possible regardless of the power state of the mobile device 50.
　この無線通信システムでは、ＢＬＥ通信を通じて携帯機器５０の認証が完了すると、たとえばドアノブに設けられたセンサに触れる等の操作を行なうことにより、ドアロック装置２２の施錠／解錠を切り替えることができる。さらに、この実施の形態に従う無線通信システムでは、上記操作に加えて、携帯機器５０を用いてドアロック装置２２を操作することもできる。具体的には、車両１０においてＮＦＣ通信機１２が設けられている所定位置に携帯機器５０をかざしてＮＦＣ接続を形成することによっても、ドアロック装置２２の施錠／解錠を切り替えることができる。 In this wireless communication system, when the authentication of the mobile device 50 is completed through BLE communication, the door lock device 22 can be locked / unlocked by performing an operation such as touching a sensor provided on the door knob. Further, in the wireless communication system according to this embodiment, in addition to the above operation, the door lock device 22 can be operated by using the portable device 50. Specifically, the door lock device 22 can be locked / unlocked by holding the mobile device 50 over a predetermined position where the NFC communication device 12 is provided in the vehicle 10 to form an NFC connection.
　ＮＦＣ通信でもＢＬＥ通信でも、携帯機器５０を所持する利用者が車両１０に近づいたことを検知するために、車両１０のＮＦＣ通信機１２及びＢＬＥ通信機１４において、携帯機器５０を検知するためのポーリングが行なわれる。ポーリング中は、車両１０に接近した携帯機器５０を検知するために、周囲に対して一定期間毎に電波（リクエスト信号）が出力されるため、暗電流が流れる。このポーリングに伴なう暗電流が大きいと、バッテリ２６が意図せず枯渇する等の問題が生じる可能性がある。 In both NFC communication and BLE communication, in order to detect that the user who owns the mobile device 50 approaches the vehicle 10, the NFC communication device 12 and the BLE communication device 14 of the vehicle 10 detect the mobile device 50. Polling is done. During polling, radio waves (request signals) are output to the surroundings at regular intervals in order to detect the mobile device 50 approaching the vehicle 10, so that a dark current flows. If the dark current associated with this polling is large, problems such as the battery 26 being unintentionally exhausted may occur.
　そこで、本実施の形態に従う無線通信システムでは、ＢＬＥ通信の確立（ＢＬＥ接続）及び携帯機器５０の認証が完了した場合に、無線コントローラ１６は、ＮＦＣ通信機１２によるポーリングを開始する。ＢＬＥ通信の通信可能範囲は、ＮＦＣ通信の通信可能範囲よりも広いため、ＢＬＥ接続の前にＮＦＣ接続が行なわれることはない。そこで、本実施の形態では、ＢＬＥ接続が完了した場合に、ＮＦＣ通信機１２によるポーリングを開始することとしたものである。これにより、ＢＬＥ接続が完了する前の、ポーリングによる暗電流を低減することができる。 Therefore, in the wireless communication system according to the present embodiment, when the establishment of BLE communication (BLE connection) and the authentication of the mobile device 50 are completed, the wireless controller 16 starts polling by the NFC communication device 12. Since the communicable range of BLE communication is wider than the communicable range of NFC communication, the NFC connection is not performed before the BLE connection. Therefore, in the present embodiment, polling by the NFC communication device 12 is started when the BLE connection is completed. This makes it possible to reduce the dark current due to polling before the BLE connection is completed.
　ＮＦＣ通信機１２によるポーリング（以下「ＮＦＣポーリング」と称し、これに対して、ＢＬＥ通信機１４によるポーリングを「ＢＬＥポーリング」と称する場合がある。）は、所定のＮＦＣポーリング停止条件が成立した場合に停止される。ＮＦＣポーリング停止条件は、たとえば、ＢＬＥ接続が切れた場合、利用者の搭乗が確認された場合、イグニッションキー等がオン操作されてＲｅａｄｙ－ＯＮ状態となった場合、車両１０の走行が開始した場合等に成立するものとすることができる。 Polling by the NFC communication device 12 (hereinafter referred to as "NFC polling", whereas polling by the BLE communication device 14 may be referred to as "BLE polling") is when a predetermined NFC polling stop condition is satisfied. Is stopped at. The NFC polling stop conditions are, for example, when the BLE connection is cut off, when the boarding of the user is confirmed, when the ignition key or the like is turned on to enter the Ready-ON state, or when the vehicle 10 starts running. Etc. can be established.
　図３は、車両１０のＢＬＥ通信機１４及びＮＦＣ通信機１２によるポーリングの一例を示すタイミングチャートである。図３を参照して、時刻ｔ０の時点でポーリング条件が成立しており、ＢＬＥ通信機１４から周囲に向けてリクエスト信号が発信されている（ＢＬＥポーリング）。 FIG. 3 is a timing chart showing an example of polling by the BLE communication device 14 and the NFC communication device 12 of the vehicle 10. With reference to FIG. 3, the polling condition is satisfied at the time t0, and the request signal is transmitted from the BLE communication device 14 toward the surroundings (BLE polling).
　なお、ポーリング条件は、たとえば、イグニッションキー等がオフ操作されてＲｅａｄｙ－ＯＦＦ状態となり、搭乗者が降車してドアが施錠された場合等に成立するものとすることができる。リクエスト信号は、時刻ｔ０以前においても、ポーリング条件の成立後は一定期間毎に発信されている。 Note that the polling condition can be satisfied, for example, when the ignition key or the like is turned off to enter the Ready-OFF state, and the passenger gets off and the door is locked. Even before the time t0, the request signal is transmitted at regular intervals after the polling condition is satisfied.
　時刻ｔ１において、ＢＬＥ通信機１４から発信されたリクエスト信号に応答して携帯機器５０のＢＬＥ通信機５４から送信されたレスポンス信号がＢＬＥ通信機１４により受信され、ＢＬＥ通信機１４，５４間の無線による接続（ＢＬＥ接続）が完了している。なお、特に図示していないが、ＢＬＥ通信機５４からのレスポンス信号がＢＬＥ通信機１４により受信されると、当該レスポンス信号に含まれるＩＤ情報の照合が行なわれ、携帯機器５０の認証が行なわれる。 At time t1, the response signal transmitted from the BLE communication device 54 of the portable device 50 in response to the request signal transmitted from the BLE communication device 14 is received by the BLE communication device 14, and the radio between the BLE communication devices 14 and 54 is received. Connection (BLE connection) is completed. Although not particularly shown, when the response signal from the BLE communication device 54 is received by the BLE communication device 14, the ID information included in the response signal is collated and the mobile device 50 is authenticated. ..
　ＢＬＥ接続及び携帯機器５０の認証が完了すると、無線コントローラ１６からＮＦＣ通信機１２へポーリング開始指令が出力され、ＮＦＣポーリングが開始する。ＮＦＣポーリングが開始することにより、車両１０の利用者は、車両１０においてＮＦＣ通信機１２が設けられている所定位置に携帯機器５０をかざしてＮＦＣ接続を形成することによって、ドアロック装置２２を解錠状態（アンロック状態）に切り替えることができる。そして、この実施の形態に従う無線通信システムによれば、ＢＬＥ接続が完了するまでは、ＮＦＣポーリングを停止しているので、ポーリングによる暗電流を低減することができる。 When the BLE connection and the authentication of the mobile device 50 are completed, the wireless controller 16 outputs a polling start command to the NFC communication device 12, and the NFC polling starts. When the NFC polling is started, the user of the vehicle 10 releases the door lock device 22 by holding the mobile device 50 over the predetermined position where the NFC communication device 12 is provided in the vehicle 10 to form an NFC connection. It can be switched to the locked state (unlocked state). Then, according to the wireless communication system according to this embodiment, the NFC polling is stopped until the BLE connection is completed, so that the dark current due to the polling can be reduced.
　図４は、車両１０の無線コントローラ１６により実行される処理の手順の一例を示すフローチャートである。このフローチャートに示される一連の処理は、所定の周期毎に繰り返し実行される。 FIG. 4 is a flowchart showing an example of a processing procedure executed by the wireless controller 16 of the vehicle 10. The series of processes shown in this flowchart are repeatedly executed at predetermined intervals.
　図４を参照して、無線コントローラ１６は、ＢＬＥ通信機１４がポーリングを実行するためのポーリング条件が成立しているか否かを判定する（ステップＳ１０）。ポーリング条件は、たとえば、車両１０の状態がＲｅａｄｙ－ＯＦＦ状態となり、搭乗者の降車後にドアが施錠された場合等に成立するものとすることができる。ポーリング条件が成立していないときは（ステップＳ１０においてＮＯ）、リターンへ処理が移行される。 With reference to FIG. 4, the wireless controller 16 determines whether or not the polling condition for the BLE communication device 14 to execute polling is satisfied (step S10). The polling condition can be satisfied, for example, when the vehicle 10 is in the Ready-OFF state and the door is locked after the passenger gets off the vehicle. If the polling condition is not satisfied (NO in step S10), the process shifts to return.
　ステップＳ１０においてポーリング条件が成立しているものと判定されると（ステップＳ１０においてＹＥＳ）、無線コントローラ１６は、ＢＬＥ通信機１４へポーリングの実行を指示する指令を出力する（ステップＳ２０）。これにより、ＢＬＥ通信機１４は、周囲に対して一定期間毎にリクエスト信号を発信する。 When it is determined in step S10 that the polling condition is satisfied (YES in step S10), the wireless controller 16 outputs a command instructing the BLE communication device 14 to execute polling (step S20). As a result, the BLE communication device 14 transmits a request signal to the surroundings at regular intervals.
　次いで、無線コントローラ１６は、ＢＬＥ通信機１４，５４間で通信が確立し（ＢＬＥ接続）、ＢＬＥ通信を通じて携帯機器５０の認証が完了したか否かを判定する（ステップＳ３０）。具体的には、ＢＬＥ通信機１４からのリクエスト信号に応答して携帯機器５０のＢＬＥ通信機５４から送信されたレスポンス信号がＢＬＥ通信機１４により受信され、当該レスポンス信号に含まれるＩＤ情報の照合結果に基づいて、携帯機器５０の認証が完了したか否かが判定される。 Next, the wireless controller 16 determines whether or not communication is established between the BLE communication devices 14 and 54 (BLE connection) and the authentication of the mobile device 50 is completed through the BLE communication (step S30). Specifically, the response signal transmitted from the BLE communication device 54 of the mobile device 50 in response to the request signal from the BLE communication device 14 is received by the BLE communication device 14, and the ID information included in the response signal is collated. Based on the result, it is determined whether or not the authentication of the portable device 50 is completed.
　そして、ステップＳ３０において、ＢＬＥ接続及び携帯機器５０の認証が完了したものと判定されると（ステップＳ３０においてＹＥＳ）、無線コントローラ１６は、ＮＦＣ通信機１２へポーリングの実行を指示する指令を出力する（ステップＳ４０）。すなわち、ＮＦＣポーリングは、ＢＬＥ接続及び携帯機器５０の認証が完了した場合に開始する。 Then, when it is determined in step S30 that the BLE connection and the authentication of the mobile device 50 are completed (YES in step S30), the wireless controller 16 outputs a command instructing the NFC communication device 12 to execute polling. (Step S40). That is, the NFC polling starts when the BLE connection and the authentication of the mobile device 50 are completed.
　次いで、無線コントローラ１６は、ドアロック装置２２の解錠要求が有ったか否かを判定する（ステップＳ５０）。具体的には、無線コントローラ１６は、車両１０においてＮＦＣ通信機１２が設けられている所定位置に利用者が携帯機器５０をかざすことで、ＮＦＣ通信機１２，５２間で通信が確立したか、すなわちＮＦＣ接続が形成されたかを確認し、ＮＦＣ接続が確認された場合に、ドアロック装置２２の解錠が要求されたものと判定する。 Next, the wireless controller 16 determines whether or not there is a request to unlock the door lock device 22 (step S50). Specifically, in the wireless controller 16, whether the communication is established between the NFC communication devices 12 and 52 by the user holding the mobile device 50 over the predetermined position where the NFC communication device 12 is provided in the vehicle 10. That is, it is confirmed whether the NFC connection is formed, and when the NFC connection is confirmed, it is determined that the unlocking of the door lock device 22 is requested.
　そして、ステップＳ５０において、ドアロック装置２２の解錠要求が有ったものと判定されると（ステップＳ５０においてＹＥＳ）、無線コントローラ１６は、車両制御装置２０へ搭乗用ドアの解錠を指示し、ドアロック装置２２が解錠状態に切り替えられる（ステップＳ６０）。なお、特に図示しないが、利用者がドアノブに設けられたセンサに触れる等の操作を行なうことでも、ドアロック装置２２を解錠状態に切り替えることができる。 Then, when it is determined in step S50 that the door lock device 22 has been requested to be unlocked (YES in step S50), the wireless controller 16 instructs the vehicle control device 20 to unlock the boarding door. , The door lock device 22 is switched to the unlocked state (step S60). Although not shown in particular, the door lock device 22 can be switched to the unlocked state by the user performing an operation such as touching a sensor provided on the door knob.
　なお、ステップＳ３０においてＢＬＥ接続及び認証が完了していない場合（ステップＳ３０においてＮＯ）、又はステップＳ５０においてドアロック装置２２の解錠要求が無い場合は（ステップＳ５０においてＮＯ）、リターンへ処理が移行される。 If the BLE connection and authentication are not completed in step S30 (NO in step S30), or if there is no unlock request for the door lock device 22 in step S50 (NO in step S50), the process shifts to return. Will be done.
　以上のように、本実施の形態においては、相対的に通信可能距離の長いＢＬＥ通信機１４，５４間の通信が確立してＢＬＥ接続が完了した場合に、ＮＦＣ通信機１２によるポーリングを開始する。したがって、本実施の形態によれば、ＢＬＥ通信機１４，５４によるＢＬＥ接続が完了する前の、ポーリングによる暗電流を低減することができる。 As described above, in the present embodiment, when the communication between the BLE communication devices 14 and 54 having a relatively long communicable distance is established and the BLE connection is completed, the polling by the NFC communication device 12 is started. .. Therefore, according to the present embodiment, it is possible to reduce the dark current due to polling before the BLE connection by the BLE communication devices 14 and 54 is completed.
　また、本実施の形態によれば、ドアロック装置２２を解錠状態に切り替える操作として、利用者がドアノブに設けられたセンサに触れる等の操作に加えて、携帯機器５０を車両１０の所定位置にかざす操作でも可能となるので、ドア解錠操作の選択肢が増え、利便性が向上する。 Further, according to the present embodiment, as an operation of switching the door lock device 22 to the unlocked state, in addition to an operation such as a user touching a sensor provided on the door knob, the portable device 50 is placed at a predetermined position of the vehicle 10. Since it is also possible to hold it over, the options for unlocking the door will increase and convenience will improve.
　［変形例］
　上記の実施の形態では、ＢＬＥ接続及び携帯機器５０の認証が完了した場合にＮＦＣポーリングが開始されるものとしたが、ＢＬＥ側での認証に拘わらず、ＢＬＥ接続の完了をもってＮＦＣポーリングを開始してもよい。この場合、ＮＦＣ側で認証を行なうようにしてもよい。 [Modification example]
In the above embodiment, the NFC polling is started when the BLE connection and the authentication of the mobile device 50 are completed. However, regardless of the authentication on the BLE side, the NFC polling is started when the BLE connection is completed. You may. In this case, the NFC side may perform the authentication.
　図５は、この変形例における無線コントローラ１６により実行される処理の手順の一例を示すフローチャートである。このフローチャートに示される一連の処理も、所定の周期毎に繰り返し実行される。 FIG. 5 is a flowchart showing an example of a processing procedure executed by the wireless controller 16 in this modified example. The series of processes shown in this flowchart are also repeatedly executed at predetermined intervals.
　図５を参照して、ステップＳ１１０，Ｓ１２０の処理は、それぞれ図４に示したステップＳ１０，Ｓ２０の処理と同じである。そして、この変形例では、ステップＳ１２０においてＢＬＥポーリングが実行されると、無線コントローラ１６は、ＢＬＥ通信機１４，５４間で通信が確立したか否か、すなわちＢＬＥ接続が形成されたか否かを判定する（ステップＳ１３０）。具体的には、ＢＬＥ通信機１４からのリクエスト信号に応答して携帯機器５０のＢＬＥ通信機５４からレスポンス信号が送信され、ＢＬＥ通信機１４によりレスポンス信号が受信されると、ＢＬＥ接続が形成されたものと判定される。 With reference to FIG. 5, the processes of steps S110 and S120 are the same as the processes of steps S10 and S20 shown in FIG. 4, respectively. Then, in this modification, when the BLE polling is executed in step S120, the wireless controller 16 determines whether or not the communication is established between the BLE communication devices 14 and 54, that is, whether or not the BLE connection is formed. (Step S130). Specifically, when a response signal is transmitted from the BLE communication device 54 of the mobile device 50 in response to the request signal from the BLE communication device 14 and the response signal is received by the BLE communication device 14, a BLE connection is formed. It is judged that it is a Bluetooth.
　ステップＳ１３０においてＢＬＥ接続が形成されたものと判定されると（ステップＳ１３０においてＹＥＳ）、無線コントローラ１６は、ＮＦＣ通信機１２へポーリングの実行を指示する指令を出力する（ステップＳ１４０）。すなわち、この変形例では、ＢＬＥ接続が形成されたことのみをもってＮＦＣポーリングが開始する。 When it is determined in step S130 that the BLE connection has been formed (YES in step S130), the wireless controller 16 outputs a command instructing the NFC communication device 12 to execute polling (step S140). That is, in this modification, NFC polling starts only when the BLE connection is formed.
　次いで、無線コントローラ１６は、ＮＦＣ通信機１２，５２間で通信が確立し（ＮＦＣ接続）、ＮＦＣ通信を通じて携帯機器５０の認証が完了したか否かを判定する（ステップＳ１５０）。具体的には、ＮＦＣ通信機１２からのリクエスト信号に応答して携帯機器５０のＮＦＣ通信機５２から送信されたレスポンス信号がＮＦＣ通信機１２により受信され、当該レスポンス信号に含まれるＩＤ情報の照合結果に基づいて、携帯機器５０の認証が完了したか否かが判定される。 Next, the wireless controller 16 determines whether or not the communication is established between the NFC communication devices 12 and 52 (NFC connection) and the authentication of the mobile device 50 is completed through the NFC communication (step S150). Specifically, the response signal transmitted from the NFC communication device 52 of the mobile device 50 in response to the request signal from the NFC communication device 12 is received by the NFC communication device 12, and the ID information included in the response signal is collated. Based on the result, it is determined whether or not the authentication of the mobile device 50 is completed.
　そして、ステップＳ１５０において、ＮＦＣ接続及び携帯機器５０の認証が完了したものと判定されると（ステップＳ１５０においてＹＥＳ）、無線コントローラ１６は、ドアロック装置２２の解錠要求が有ったか否かを判定する（ステップＳ１６０）。たとえば、車両１０においてＮＦＣ通信機１２が設けられている所定位置に利用者が携帯機器５０をかざして、ＮＦＣ通信機１２，５２間の通信が所定時間以上継続した場合に、無線コントローラ１６は、ドアロック装置２２の解錠が要求されたものと判定する。 Then, when it is determined in step S150 that the NFC connection and the authentication of the mobile device 50 have been completed (YES in step S150), the wireless controller 16 determines whether or not there is a request to unlock the door lock device 22. Determine (step S160). For example, when the user holds the mobile device 50 at a predetermined position where the NFC communication device 12 is provided in the vehicle 10 and the communication between the NFC communication devices 12 and 52 continues for a predetermined time or longer, the wireless controller 16 may be used. It is determined that the door lock device 22 has been requested to be unlocked.
　そして、ステップＳ１６０において、ドアロック装置２２の解錠要求が有ったものと判定されると（ステップＳ１６０においてＹＥＳ）、無線コントローラ１６は、車両制御装置２０へ搭乗用ドアの解錠を指示し、ドアロック装置２２が解錠状態に切り替えられる（ステップＳ１７０）。なお、特に図示しないが、ステップＳ１５０において携帯機器５０の認証が完了した後は（ステップＳ１５０においてＹＥＳ）、利用者がドアノブに設けられたセンサに触れる等の操作を行なうことでも、ドアロック装置２２を解錠状態に切り替えることができる。 Then, when it is determined in step S160 that the door lock device 22 has been requested to be unlocked (YES in step S160), the wireless controller 16 instructs the vehicle control device 20 to unlock the boarding door. , The door lock device 22 is switched to the unlocked state (step S170). Although not particularly shown, after the authentication of the mobile device 50 is completed in step S150 (YES in step S150), the door lock device 22 can also be operated by the user touching the sensor provided on the doorknob. Can be switched to the unlocked state.
　なお、ステップＳ１３０においてＢＬＥ接続が形成されていない場合（ステップＳ１３０においてＮＯ）、ステップＳ１５０においてＮＦＣ接続及び携帯機器５０の認証が完了していない場合（ステップＳ１５０においてＮＯ）、又はステップＳ１６０においてドアロック装置２２の解錠要求が無い場合は（ステップＳ１６０においてＮＯ）、リターンへ処理が移行される。 If the BLE connection is not formed in step S130 (NO in step S130), the NFC connection and the authentication of the mobile device 50 are not completed in step S150 (NO in step S150), or the door lock is performed in step S160. If there is no unlock request for the device 22 (NO in step S160), the process shifts to return.
　この変形例によっても、上記の実施の形態と同様の効果が得られる。
　なお、上記の実施の形態及び変形例では、ＮＦＣ通信機５２は、携帯機器５０に搭載されるものとしたが、ＮＦＣ通信機５２は、携帯機器５０とは別の、電源を持たないカード等に搭載されてもよい。 The same effect as that of the above-described embodiment can be obtained by this modification.
In the above-described embodiment and modification, the NFC communication device 52 is mounted on the mobile device 50, but the NFC communication device 52 is a card or the like that does not have a power supply and is different from the mobile device 50. It may be mounted on.
　また、上記の実施の形態及び変形例では、車両１０において、無線コントローラ１６は、車両制御装置２０とは別に設けられるものとしたが、無線コントローラ１６の機能を車両制御装置２０が備えてもよい。 Further, in the above-described embodiment and modification, in the vehicle 10, the wireless controller 16 is provided separately from the vehicle control device 20, but the vehicle control device 20 may have the function of the wireless controller 16. ..
　また、上記の実施の形態及び変形例において、ＢＬＥ通信機１４，５４に代えて、超広帯域無線（ＵＷＢ（Ultra　Wide　Band））通信の規格に従う通信方式を用いて無線通信を行なうＵＷＢ通信機を車両１０及び携帯機器５０の双方に備えてもよい。また、ＢＬＥ通信機１４，５４に加えて、車両１０及び携帯機器５０の双方にＵＷＢ通信機を備えてもよい。 Further, in the above-described embodiment and modification, instead of the BLE communication devices 14 and 54, a UWB communication device that performs wireless communication using a communication method that conforms to an ultra-wideband (UWB (Ultra Wide Band)) communication standard is used. It may be provided for both the vehicle 10 and the portable device 50. Further, in addition to the BLE communication devices 14 and 54, the UWB communication device may be provided in both the vehicle 10 and the portable device 50.
　また、上記の実施の形態及び変形例では、ＮＦＣ通信機１２、ＢＬＥ通信機１４、及び無線コントローラ１６は、車両１０に搭載されるものとしたが、本開示の射程範囲は、車両に搭載される無線通信装置に限定されるものではない。たとえば、ＮＦＣ通信機１２、ＢＬＥ通信機１４、及び無線コントローラ１６が住宅や宅配ＢＯＸに設けられ、住宅や宅配ＢＯＸのドアの解施錠を行なうキーとして携帯機器５０が用いられてもよい。 Further, in the above-described embodiment and modification, the NFC communication device 12, the BLE communication device 14, and the wireless controller 16 are mounted on the vehicle 10, but the range of the present disclosure is mounted on the vehicle. It is not limited to wireless communication devices. For example, the NFC communication device 12, the BLE communication device 14, and the wireless controller 16 may be provided in the house or the delivery box, and the portable device 50 may be used as a key for unlocking the door of the house or the delivery box.
　今回開示された実施の形態は、全ての点で例示であって制限的なものではないと考えられるべきである。本開示により示される技術的範囲は、上記した実施の形態の説明ではなくて請求の範囲によって示され、請求の範囲と均等の意味及び範囲内での全ての変更が含まれることが意図される。 The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The technical scope indicated by the present disclosure is indicated by the scope of claims rather than the description of the embodiment described above, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims. ..
　以上に説明した例示的な形態は、以下の態様の具体例である。
　一態様における無線通信装置は、互いに異なる通信方式を用いて無線通信を行なう第１及び第２の通信機と、第１及び第２の通信機を制御するコントローラとを備える。第１の通信機の通信可能距離は、第２の通信機の通信可能距離よりも長い。第１及び第２の通信機の各々は、無線通信可能な携帯機器を検知するためのポーリングを行なうように構成される。コントローラは、第１の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始する。 The exemplary form described above is a specific example of the following aspect.
The wireless communication device in one embodiment includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices. The communicable distance of the first communicator is longer than the communicable distance of the second communicator. Each of the first and second communication devices is configured to perform polling to detect a mobile device capable of wireless communication. The controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
　また、一態様における無線通信システムは、無線通信装置と、無線通信装置と無線通信を行なう携帯機器とを備える。無線通信装置は、互いに異なる通信方式を用いて無線通信を行なう第１及び第２の通信機と、第１及び第２の通信機を制御するコントローラとを含む。第１の通信機の通信可能距離は、第２の通信機の通信可能距離よりも長い。第１及び第２の通信機の各々は、携帯機器を検知するためのポーリングを行なうように構成される。コントローラは、第１の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始する。 Further, the wireless communication system in one aspect includes a wireless communication device and a portable device that performs wireless communication with the wireless communication device. The wireless communication device includes first and second communication devices that perform wireless communication using different communication methods, and a controller that controls the first and second communication devices. The communicable distance of the first communicator is longer than the communicable distance of the second communicator. Each of the first and second communicators is configured to poll to detect a mobile device. The controller starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by polling is completed.
　第２の通信機は、ＮＦＣ規格に従う通信方式を用いるＮＦＣ通信機であってもよい。また、第１の通信機は、ＢＬＥ通信規格に従う通信方式を用いるＢＬＥ通信機、及びＵＷＢ通信規格に従う通信方式を用いるＵＷＢ通信機の少なくとも一方を含んでもよい。 The second communication device may be an NFC communication device that uses a communication method that conforms to the NFC standard. Further, the first communication device may include at least one of a BLE communication device that uses a communication method that conforms to the BLE communication standard and a UWB communication device that uses a communication method that conforms to the UWB communication standard.
　上記の無線通信装置は、第１及び第２の通信機を備えており、第１の通信機の通信可能距離は、第２の通信機の通信可能距離よりも長い。そのため、第１の通信機と携帯機器との無線による接続が行なわれる前に、第２の通信機と当該携帯機器との接続が行なわれることはない。そこで、この無線通信装置では、第１の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始する。これにより、第１の通信機と当該携帯機器との無線による接続が完了する前の、ポーリングによる暗電流を低減することができる。 The above wireless communication device includes first and second communication devices, and the communication range of the first communication device is longer than the communication range of the second communication device. Therefore, the connection between the second communication device and the mobile device is not made before the wireless connection between the first communication device and the mobile device is made. Therefore, in this wireless communication device, polling by the second communication device is started when the wireless connection between the first communication device and the mobile device detected by polling is completed. As a result, it is possible to reduce the dark current due to polling before the wireless connection between the first communication device and the mobile device is completed.
　コントローラは、第１の通信機において携帯機器との無線による接続及び認証が完了した場合に、第２の通信機によるポーリングを開始し、第２の通信機とポーリングにより検知された携帯機器との無線による接続が完了した場合に、予め定められた機能の実行を指示する指令を出力するようにしてもよい。 When the wireless connection and authentication with the mobile device are completed in the first communication device, the controller starts polling by the second communication device, and the second communication device and the mobile device detected by the polling are connected to each other. When the wireless connection is completed, a command for instructing the execution of a predetermined function may be output.
　この無線通信装置では、第１の通信機において認証が完了した場合に、第２の通信機によるポーリングが開始する。これにより、第２の通信機において認証が行なわれなくても、第２の通信機と携帯機器との無線による接続をもって、予め定められた機能を実行させることができる。 In this wireless communication device, polling by the second communication device starts when the authentication is completed in the first communication device. As a result, even if the second communication device is not authenticated, the predetermined function can be executed by the wireless connection between the second communication device and the mobile device.
　また、コントローラは、第１の通信機において携帯機器との無線による接続が完了した場合に、第２の通信機によるポーリングを開始し、第２の通信機において携帯機器との無線による接続及び認証が完了した場合に、予め定められた機能の実行を許可する指令を出力するようにしてもよい。 Further, when the wireless connection with the mobile device is completed in the first communication device, the controller starts polling by the second communication device, and wireless connection and authentication with the mobile device in the second communication device. When is completed, a command permitting the execution of a predetermined function may be output.
　この無線通信装置では、第１の通信機において携帯機器との無線による接続が完了しさえすれば、第２の通信機によるポーリングが開始し、認証は第２の通信機において行なわれる。これにより、第１の通信機において認証が完了しないために第２の通信機によるポーリングが開始しないような事態を回避することができる。 In this wireless communication device, polling by the second communication device is started and authentication is performed by the second communication device as long as the wireless connection with the mobile device is completed in the first communication device. As a result, it is possible to avoid a situation in which polling by the second communication device is not started because the authentication is not completed in the first communication device.
　無線通信装置は、車両に搭載され、認証により許可される機能は、携帯機器を用いた車両のドアの解錠を含んでもよい。 The wireless communication device is mounted on the vehicle, and the function permitted by the authentication may include unlocking the door of the vehicle using a portable device.
　これにより、たとえば車両のドアノブに設けられたセンサに触れる等してドアの解錠を行なう解錠操作に加えて、第２の通信機を通じて、携帯機器を用いて車両のドアの解錠を行なうこともできる。 As a result, in addition to the unlocking operation of unlocking the door by touching the sensor provided on the door knob of the vehicle, for example, the door of the vehicle is unlocked by using the portable device through the second communication device. You can also do it.
　１０　車両、１２，５２　ＮＦＣ通信機、１４，５４　ＢＬＥ通信機、１６　無線コントローラ、１８，６０　メモリ、２０　車両制御装置、２２　ドアロック装置、２６，６６　バッテリ、５０　携帯機器、５６　制御装置、５８　ＣＰＵ、６２　入力装置、６４　表示装置。 10 vehicles, 12, 52 NFC communication devices, 14, 54 BLE communication devices, 16 wireless controllers, 18, 60 memories, 20 vehicle control devices, 22 door lock devices, 26, 66 batteries, 50 portable devices, 56 control devices, 58 CPU, 62 input device, 64 display device.

Claims (10)

  1. 　互いに異なる通信方式を用いて無線通信を行なう第１及び第２の通信機と、
    　前記第１及び第２の通信機を制御するコントローラとを備え、
    　前記第１の通信機の通信可能距離は、前記第２の通信機の通信可能距離よりも長く、
    　前記第１及び第２の通信機の各々は、無線通信可能な携帯機器を検知するためのポーリングを行なうように構成され、
    　前記コントローラは、前記第１の通信機と前記ポーリングにより検知された携帯機器との無線による接続が完了した場合に、前記第２の通信機によるポーリングを開始する、無線通信装置。     The first and second communication devices that perform wireless communication using different communication methods,
    A controller for controlling the first and second communication devices is provided.
    The communicable distance of the first communicator is longer than the communicable distance of the second communicator.
    Each of the first and second communication devices is configured to perform polling to detect a mobile device capable of wireless communication.
    The controller is a wireless communication device that starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by the polling is completed.
  2. 　前記第２の通信機は、近距離無線通信規格に従う通信方式を用いるＮＦＣ通信機である、請求項１に記載の無線通信装置。 The wireless communication device according to claim 1, wherein the second communication device is an NFC communication device that uses a communication method according to a short-range wireless communication standard.
  3. 　前記第１の通信機は、ＢＬＥ通信規格に従う通信方式を用いるＢＬＥ通信機、及びＵＷＢ通信規格に従う通信方式を用いるＵＷＢ通信機の少なくとも一方を含む、請求項１又は請求項２に記載の無線通信装置。 The wireless communication according to claim 1 or 2, wherein the first communication device includes at least one of a BLE communication device that uses a communication method that conforms to the BLE communication standard and a UWB communication device that uses a communication method that conforms to the UWB communication standard. Device.
  4. 　前記コントローラは、
    　前記第１の通信機において前記携帯機器との無線による接続及び認証が完了した場合に、前記第２の通信機によるポーリングを開始し、
    　前記第２の通信機と前記ポーリングにより検知された携帯機器との無線による接続が完了した場合に、予め定められた機能の実行を指示する指令を出力する、請求項１から請求項３のいずれか１項に記載の無線通信装置。     The controller
    When the wireless connection and authentication with the mobile device are completed in the first communication device, polling by the second communication device is started.
    Any of claims 1 to 3, which outputs a command instructing execution of a predetermined function when the wireless connection between the second communication device and the mobile device detected by the polling is completed. The wireless communication device according to item 1.
  5. 　前記コントローラは、
    　前記第１の通信機において前記携帯機器との無線による接続が完了した場合に、前記第２の通信機によるポーリングを開始し、
    　前記第２の通信機において前記携帯機器との無線による接続及び認証が完了した場合に、予め定められた機能の実行を許可する指令を出力する、請求項１から請求項３のいずれか１項に記載の無線通信装置。     The controller
    When the wireless connection with the mobile device is completed in the first communication device, polling by the second communication device is started.
    Any one of claims 1 to 3, which outputs a command permitting execution of a predetermined function when wireless connection and authentication with the mobile device are completed in the second communication device. The wireless communication device described in.
  6. 　前記無線通信装置は、車両に搭載され、
    　前記認証により許可される機能は、前記携帯機器を用いた前記車両のドアの解錠を含む、請求項４又は請求項５に記載の無線通信装置。     The wireless communication device is mounted on a vehicle and
    The wireless communication device according to claim 4 or 5, wherein the function permitted by the authentication includes unlocking the door of the vehicle using the portable device.
  7. 　請求項１から請求項６のいずれか１項に記載の無線通信装置を備える車両。 A vehicle equipped with the wireless communication device according to any one of claims 1 to 6.
  8. 　無線通信装置と、
    　前記無線通信装置と無線通信を行なう携帯機器とを備え、
    　前記無線通信装置は、
    　互いに異なる通信方式を用いて無線通信を行なう第１及び第２の通信機と、
    　前記第１及び第２の通信機を制御するコントローラとを含み、
    　前記第１の通信機の通信可能距離は、前記第２の通信機の通信可能距離よりも長く、
    　前記第１及び第２の通信機の各々は、前記携帯機器を検知するためのポーリングを行なうように構成され、
    　前記コントローラは、前記第１の通信機と前記ポーリングにより検知された携帯機器との無線による接続が完了した場合に、前記第２の通信機によるポーリングを開始する、無線通信システム。     Wireless communication device and
    It is equipped with the wireless communication device and a portable device that performs wireless communication.
    The wireless communication device is
    The first and second communication devices that perform wireless communication using different communication methods,
    Including a controller for controlling the first and second communication devices,
    The communicable distance of the first communicator is longer than the communicable distance of the second communicator.
    Each of the first and second communication devices is configured to perform polling to detect the mobile device.
    The controller is a wireless communication system that starts polling by the second communication device when the wireless connection between the first communication device and the mobile device detected by the polling is completed.
  9. 　前記第２の通信機は、近距離無線通信規格に従う通信方式を用いるＮＦＣ通信機である、請求項８に記載の無線通信システム。 The wireless communication system according to claim 8, wherein the second communication device is an NFC communication device that uses a communication method according to a short-range wireless communication standard.
  10. 　前記無線通信装置は、車両に搭載され、
    　前記第１及び第２の通信機の一方において前記携帯機器の認証が完了した場合に、前記認証により許可される機能は、前記携帯機器を用いた前記車両のドアの解錠を含む、請求項８又は請求項９に記載の無線通信システム。      The wireless communication device is mounted on a vehicle and
    A claim that, when the authentication of the portable device is completed in one of the first and second communication devices, the function permitted by the authentication includes unlocking the door of the vehicle using the portable device. 8 or the wireless communication system according to claim 9.
PCT/JP2020/046489 2020-03-23 2020-12-14 Wireless communication device, vehicle provided with same, and wireless communication system WO2021192447A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015059398A (en) * 2013-09-20 2015-03-30 株式会社デンソー Vehicle controller
WO2018216459A1 (en) * 2017-05-22 2018-11-29 フェリカネットワークス株式会社 Communication device, communication method, and program

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015059398A (en) * 2013-09-20 2015-03-30 株式会社デンソー Vehicle controller
WO2018216459A1 (en) * 2017-05-22 2018-11-29 フェリカネットワークス株式会社 Communication device, communication method, and program

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