WO2015068726A1 - Onboard navigation device - Google Patents

Onboard navigation device Download PDF

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Publication number
WO2015068726A1
WO2015068726A1 PCT/JP2014/079335 JP2014079335W WO2015068726A1 WO 2015068726 A1 WO2015068726 A1 WO 2015068726A1 JP 2014079335 W JP2014079335 W JP 2014079335W WO 2015068726 A1 WO2015068726 A1 WO 2015068726A1
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WO
WIPO (PCT)
Prior art keywords
unit
vehicle
navigation device
communication unit
power consumption
Prior art date
Application number
PCT/JP2014/079335
Other languages
French (fr)
Japanese (ja)
Inventor
裕才 石飛
Original Assignee
アルプス電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to JP2015546658A priority Critical patent/JP6154481B2/en
Publication of WO2015068726A1 publication Critical patent/WO2015068726A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0296—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level switching to a backup power supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to an in-vehicle navigation device, and more particularly to an in-vehicle navigation device in which a plurality of communication terminals of a short-range wireless communication system are mounted.
  • an in-vehicle navigation device and a smartphone or the like are connected by a short-range wireless communication means such as BT (BLUETOOTH (registered trademark)) or a wireless LAN, and the vehicle driver can perform a hands-free call even while driving.
  • BT BLUETOOTH (registered trademark)
  • a wireless LAN wireless local area network
  • Patent Document 1 As a conventional in-vehicle navigation device, an in-vehicle navigation device (information terminal device) described in Patent Document 1 below is known.
  • FIG. 6 is a block diagram illustrating functions between information terminal apparatuses that perform wireless data communication.
  • the information terminal device 900 includes a first wireless communication unit 920 capable of wireless communication with low power consumption, and a second wireless communication unit 910 that performs data communication using a wireless LAN.
  • the information terminal device 950 includes a first wireless communication unit 970 that can perform wireless communication with low power consumption, and a second wireless communication unit 960 that performs data communication using a wireless LAN.
  • the second wireless communication unit 910 or the second wireless communication unit 960 is basically put into a sleep operation state.
  • the first wireless communication unit 920 is used to transmit an activation signal to the communication partner information terminal device 950 to activate the second wireless communication unit 960.
  • the first wireless communication unit 970 is used to transmit a stop signal to the counterpart information terminal device 900, and the second wireless communication unit 910 is suspended.
  • transmission of a beacon signal by the second wireless communication unit 910 and the second wireless communication unit 960 can be suppressed, and appropriate power saving can be achieved.
  • the power of the in-vehicle navigation device shifts from on to off, so the short-range wireless communication of the BT unit or the wireless LAN unit between the in-vehicle navigation device that is operating until just before and the smartphone is disconnected.
  • the smartphone or the like cannot be controlled from the in-vehicle navigation device, and there is a problem that a control signal for automatically shifting the BT unit or the wireless LAN unit of the smartphone or the like to the off state cannot be transmitted.
  • the present invention solves the above-described problem. Even when the power of the on-vehicle navigation device is switched from on to off, the BT-LE (BLUETOOTH (registered trademark) LOW ENERGY) unit is close to the smartphone or the like.
  • An object of the present invention is to provide an in-vehicle navigation device capable of performing wireless communication and transmitting a control signal for automatically shifting a BT unit such as a smartphone or a wireless LAN unit to an off state.
  • the vehicle-mounted navigation device is mounted on a vehicle and turned on and off in conjunction with engine start and stop.
  • the information terminal having an information data communication unit that transmits and receives information data by wireless communication and a low power consumption communication unit capable of short-range wireless communication with less power consumption than the information data communication unit
  • the information A first information data communication unit that performs short-range wireless communication with the data communication unit is provided.
  • it is connected to the first low power consumption communication unit that is normally activated and performs near field communication with the low power consumption communication unit, and is connected to the vehicle body control unit that is mounted on the vehicle and is normally activated.
  • the first low power consumption communication unit performs short-range wireless communication with the low power consumption communication unit of the information terminal and transmits a control signal for turning off the information data communication unit of the information terminal. It is characterized by that.
  • the in-vehicle navigation device includes a control unit that controls the in-vehicle navigation device.
  • the first low power consumption communication unit is alternatively connected to either the vehicle body control unit that is mounted on the vehicle and is always activated, or the control unit. When the in-vehicle navigation device is on, the first low power consumption communication unit is connected to the control unit, and when the in-vehicle navigation device is off, the first low power consumption communication unit is It is connected to the vehicle body control unit.
  • the information terminal in which the first low power consumption communication unit is transmitted from the vehicle body control unit when a rider of the driver on the vehicle is detected. A connection request is received. Next, when the first low power consumption communication unit is connected to the low power consumption communication unit of the information terminal by short-range wireless communication, even if the engine is stopped, the information terminal A control signal for starting the information data communication unit is transmitted.
  • the vehicle-mounted navigation device since the vehicle-mounted navigation device turns on and off the power in conjunction with the start and stop of the vehicle engine, the vehicle-mounted navigation device is turned off when the vehicle engine is stopped.
  • a control signal for turning off the BT unit or the wireless LAN unit on the smartphone side by performing short-range wireless communication with the BT-LE unit on the smartphone side. Can be sent.
  • the BT-LE unit when the power of the in-vehicle navigation device is turned on, the BT-LE unit is connected to the control unit of the in-vehicle navigation device, so the short distance of the BT unit or the wireless LAN unit using the same frequency band It is possible to control not to perform communication at the same time so as not to interfere with wireless communication.
  • the BT-LE unit when the power of the in-vehicle navigation system is off, can be connected to the BCM (BODY CONTROL MODULE) via the CAN (CONTROLLER AREA NETWORK), so that the BCM can control the BT-LE unit.
  • the BT unit or the wireless LAN unit on the smartphone side can be turned off.
  • the BCM when the BCM detects that the driver has boarded the vehicle, the BCM controls the BT-LE part of the in-vehicle navigation device via the CAN and tries to connect to the BT-LE part of the smartphone. .
  • the BT unit on the smartphone side can be activated, so that when the vehicle driver starts the vehicle engine, the HFP function can be used immediately using the BT unit. Thus, safety during vehicle travel can be improved.
  • an in-vehicle navigation device that can automatically turn off a BT unit or a wireless LAN unit such as a smartphone even when the power of the in-vehicle navigation device is switched from on to off. Can be provided.
  • FIG. 1 It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus which concerns on 1st Embodiment of this invention. It is a block diagram which shows the structure of the smart phone which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process of the vehicle-mounted navigation apparatus and smart phone at the time of boarding to the vehicle which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process of the vehicle-mounted navigation apparatus and smart phone at the time of alighting from the vehicle which concerns on 1st Embodiment of this invention. It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus of the modification 1. It is a block diagram explaining the function between the information terminal devices of the prior art example 1. FIG.
  • the in-vehicle navigation device 100 includes a first microcomputer 20 as a control unit, a first BT-LE unit 10 as a first low power consumption communication unit, and a first information data communication that performs short-range wireless communication.
  • the first BT unit 40 as a unit and the first wireless LAN unit 30 are configured.
  • the first microcomputer 20 is connected to and controls the first BT-LE unit 10, the first BT unit 40, and the first wireless LAN unit 30, respectively.
  • the first microcomputer 20 is connected to a BCM 300 serving as a vehicle body control unit that is always activated through an interface (not shown).
  • the first BT-LE unit 10 is connected to a CAN 200, which is a terminal of a device-to-device data communication network, via an interface (not shown), and is selectively used as one of the BCM 300 and the first microcomputer 20. It is connected.
  • the first BT-LE unit 10 is always activated because power is supplied from a vehicle battery (not shown) via an interface (not shown).
  • the first BT unit 40 performs data communication with a smartphone 600 as an information terminal described later when the HFP function is operated.
  • the HFP function is prohibited by domestic and foreign laws and regulations from the viewpoint of safety during driving that the driver of the vehicle directly operates the smartphone 600 while driving, so the driver is installed in the vehicle. This is a function for making a call using the mobile phone function of the smartphone 600 in a hands-free manner during driving through a microphone and a speaker (not shown).
  • the first wireless LAN unit 30 performs data communication with a smartphone 600 described later. However, in the ad hoc mode that does not pass through the access point, it is necessary to transmit a beacon signal in order to search for a communication partner.
  • the first wireless LAN unit 30 has a longer communication distance than the first BT-LE unit 10 and the first BT unit 40.
  • the BCM 300 is connected to a microphone and a speaker (not shown) installed in the vehicle via an interface (not shown). Moreover, it connects through the seat sensor etc. which detect the driver
  • the CAN 200 is a communication terminal used for data communication between interconnected devices in the vehicle and is always activated. Further, it is connected to the first BT-LE unit 10 via an interface (not shown). The CAN 200 is connected to the BCM 300.
  • the smart phone 600 and the in-vehicle navigation device 100 register the ID (IDENTIFICATION) code of each other device in advance. Thereby, when short-distance wireless communication is performed between the smart phone 600 and the vehicle-mounted navigation device 100, authentication of the ID code is performed, and short-distance wireless communication is enabled when authentication is established.
  • ID IDENTIFICATION
  • the smartphone 600 includes a second microcomputer 85, a mobile phone unit 50, a second wireless LAN unit 60, a second BT unit 70, a second BT-LE unit 80, and a battery 95.
  • the second microcomputer 85 includes a mobile phone unit 50 as a mobile phone function for transmitting and receiving information data by a wireless communication system, a second wireless LAN unit 60 as an information data communication unit, a second BT unit 70, and low power consumption.
  • the second BT-LE unit 80 as a communication unit is controlled to extend the usage time of the battery 95 mounted on the smartphone 600.
  • the mobile phone unit 50 performs wireless communication with the outside via a mobile phone base station.
  • the voice call function is mainly used.
  • the second wireless LAN unit 60 performs data communication by accessing the public communication network via a normal access point.
  • the second wireless LAN unit 60 in the present embodiment directly transmits and receives information data to and from the first wireless LAN unit 30 of the in-vehicle navigation device 100 in an ad hoc mode that does not pass through an access point.
  • the second BT unit 70 transmits and receives data to and from the mobile phone unit 50 when performing the operation of the HFP function.
  • data related to the HFP function is transmitted to and received from the first BT unit 40 of the in-vehicle navigation device 100.
  • the battery 95 is connected to the second microcomputer 85, the mobile phone unit 50, the second wireless LAN unit 60, the second BT unit 70, and the second BT-LE unit 80 to supply power.
  • the second BT-LE unit 80 performs short-range wireless communication with the first BT-LE unit 10 and turns off the second BT unit 70 or the second wireless LAN unit 60 even when the power of the in-vehicle navigation device 100 is off. A control signal is received.
  • FIG. 3 is a flowchart showing the operation of the in-vehicle navigation device 100 according to the first embodiment.
  • the procedure S1-m shows the processing of the in-vehicle navigation device 100
  • the procedure S2-n shows the processing of the smartphone 600 (m, n is a natural number).
  • step S1-1 since the vehicle engine is stopped, the power of the in-vehicle navigation device 100 is turned off. However, the first BT-LE unit 10 built in the in-vehicle navigation device 100 makes a connection request to the second BT-LE unit 80 of the smartphone 600 at regular time intervals.
  • step S2-1 the second BT-LE unit 80 built in the smartphone 600 makes a connection request to the first BT-LE unit 10 built in the vehicle-mounted navigation device 100 at regular time intervals. .
  • the smartphone 600 since the second BT unit 70 and the second wireless LAN unit 60 built in the smartphone 600 are in an off state, the smartphone 600 operates with low power consumption.
  • step S1-2 the driver carrying the smartphone 600 gets on the vehicle.
  • a seat sensor or the like on the vehicle driver's seat side detects that the driver has boarded the vehicle, and sends a detection signal to the BCM 300 via an interface (not shown).
  • the BCM 300 attempts to communicate with the second BT-LE unit 80 by controlling the first BT-LE unit 10 via the CAN 200 and an interface (not shown).
  • step S1-3 the first BT-LE unit 10 becomes a communication distance range with the second BT-LE unit 80.
  • the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown), and transmits an inquiry signal including an ID code and a connection request to the second BT-LE unit 80.
  • step S2-2 the second BT-LE unit 80 receives the inquiry signal from the first BT-LE unit 10, extracts the connection request and the ID code, and authenticates the ID code registered in advance. Next, a response signal including the ID code is transmitted to the first BT-LE unit 10 to establish a connection between the in-vehicle navigation device 100 and the BT-LE unit of the smartphone 600.
  • step S1-4 the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown) to turn on (start up) the operation of the second BT unit 70 of the smartphone 600.
  • a control signal is transmitted to the LE unit 80.
  • step S2-3 the second BT-LE unit 80 receives the control signal from the first BT-LE unit 10 and sends the control signal to the second microcomputer 85 built in the smartphone 600.
  • the second microcomputer 85 controls to turn on the operation of the second BT unit 70 built in the smartphone 600.
  • step S1-5 the driver who gets on the vehicle starts the vehicle engine. Thereby, the power supply of the vehicle-mounted navigation device 100 shifts from off to on.
  • the first microcomputer 20 built in the vehicle-mounted navigation device 100 controls the first BT unit 40 to turn on the operation in order to perform the operation of the HFP function.
  • step S1-6 the first microcomputer 20 controls the first BT unit 40, and transmits a question signal including an ID code and a connection request to the second BT unit 70 of the smartphone 600.
  • step S2-4 the second BT unit 70 receives the inquiry signal from the first BT unit 40, extracts the connection request and the ID code, and authenticates the ID code registered in advance. Next, a response signal including an ID code is transmitted to the first BT unit 40 to establish a connection between the in-vehicle navigation device 100 and the BT unit of the smartphone 600.
  • step S1-7 the first microcomputer 20 controls the first BT 40 and the BCM 300, and starts the operation of the HFP function.
  • the first BT unit 40 performs short-range wireless communication with the second BT unit 70 and requests to operate the HFP function.
  • the BCM 300 controls a microphone and a speaker (not shown) installed in the vehicle so as to start the operation of the HFP function.
  • step S2-5 the second microcomputer 85 receives a request signal for operating the HFP function from the second BT unit 70, and controls the mobile phone unit 50 built in the smartphone 600 to turn on the operation. .
  • the second microcomputer 85 controls the mobile phone unit 50 and the second BT unit 70 to perform the operation of the HFP function.
  • the driver of the vehicle can make a voice call hands-free with the mobile phone unit 50 via a microphone and a speaker (not shown) installed in the vehicle.
  • the BCM 300 when the BCM 300 detects the ride of the driver on the vehicle, the BCM 300 controls the first BT-LE unit 10 of the in-vehicle navigation device 100 via the CAN 200 and the interface (not shown) to A connection with the 2BT-LE unit 80 is established. Therefore, the BCM 300 can perform control to turn on the second BT unit 70 before the vehicle engine is started. Therefore, when the vehicle driver starts the vehicle engine, it is possible to immediately operate the HFP function using the BT communication, and the safety during traveling of the vehicle can be improved.
  • FIG. 4 is a flowchart showing the operation of the in-vehicle navigation device 100 according to the first embodiment.
  • the procedure S3-m shows the processing of the in-vehicle navigation device 100
  • the procedure S4-n shows the processing of the smartphone 600.
  • step S3-1 since the vehicle engine is operating, the power of the in-vehicle navigation device 100 is turned on.
  • the BCM 300 is connected to the first microcomputer 20 built in the vehicle-mounted navigation device 100 via an interface (not shown) and operates as an HFP function.
  • step S3-2 the first microcomputer 20 controls the first BT unit 40 to operate the HFP function with the smartphone 600.
  • step S4-1 the second microcomputer 85 built in the smartphone 600 controls the second BT unit 70 and the mobile phone unit 50 to operate the HFP function with the in-vehicle navigation device 100. Yes.
  • step S3-3 the vehicle driver stops the vehicle engine.
  • the operations of the first microcomputer 20 and the first BT unit 40 are turned off. Therefore, the smart phone 600 cannot be controlled from the in-vehicle navigation device 100, and the control signal for automatically shifting the second BT unit 70 of the smart phone 600 to the off state cannot be transmitted. Further, the BCM 300 is disconnected from the first microcomputer 20 and switched to the connection with the first BT-LE unit 10 via the CAN 200 and an interface (not shown).
  • step S3-4 the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown) to request the second BT-LE unit built in the smartphone 600 to stop the HFP function. To 80. In addition, the BCM 300 performs control to stop the operation of the HFP function for a microphone and a speaker (not shown) installed in the vehicle.
  • step S4-2 the second BT-LE unit 80 receives the request to stop the HFP function from the first BT-LE unit 10 and sends the request to the second microcomputer 85 built in the smartphone 600.
  • the second microcomputer 85 controls the mobile phone unit 50 and the second BT unit 70 to stop the HFP function.
  • the second microcomputer 85 performs control to shift the second BT unit 70 to the off state.
  • step S3-5 the driver of the vehicle carrying the smartphone 600 gets off the vehicle.
  • a seat sensor or the like on the vehicle driver's seat side detects that the vehicle driver has got off the vehicle, and sends a detection signal to the BCM 300 via an interface (not shown).
  • the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown), and resumes making a connection request to the second BT-LE unit 80 at regular time intervals.
  • the second BT unit is controlled by controlling the smartphone 600 from the in-vehicle navigation device 100 by performing short-range wireless communication with the second BT-LE unit 80 on the smartphone 600 side. 70 can be turned off.
  • the power consumption of the smartphone 600 can be reduced, and the remaining battery level of the battery 95 can be increased.
  • the vehicle-mounted navigation device 100 As described above, the vehicle-mounted navigation device 100 according to the first embodiment of the present invention has been specifically described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Can be implemented. For example, the present invention can be modified as follows, and these embodiments also belong to the technical scope of the present invention.
  • the in-vehicle navigation device 100 includes the first BT-LE unit 10, but the in-vehicle navigation device 400 does not include the third BT-LE unit 90 as shown in FIG. Even so, the third BT-LE unit 90 may perform short-range wireless communication with the smartphone 600 to automatically turn off the second BT unit 70 built in the smartphone 600.
  • First BT-LE unit 20 First microcomputer 30 First wireless LAN unit 40 First BT unit 50 Mobile phone unit 60 Second wireless LAN unit 70 Second BT unit 80 Second BT-LE unit 85 Second microcomputer 90 Third BT-LE unit 95 Battery 100 On-vehicle navigation device 200 CAN 300 BCM 400 In-vehicle navigation device 600 Smartphone 900 Information terminal device 910 Second wireless communication unit 920 First wireless communication unit 950 Information terminal device 960 Second wireless communication unit 970 First wireless communication unit

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Navigation (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

[Problem] To provide an onboard navigation device that, even when powered off, is capable of controlling a smartphone. [Solution] An onboard navigation device (100) is powered on and off when the vehicle engine is started and stopped; therefore, when the vehicle engine is stopped, the onboard navigation device (100) is powered off. However, only a first BT-LE unit (10) is powered by a vehicle battery; therefore, by performing wireless communication with a second BT-LE unit in a smartphone, the smartphone is controlled from the onboard navigation device (100), and the second BT unit of the smartphone or a second wireless LAN unit can be switched off.

Description

車載ナビゲーション装置Car navigation system
　本発明は、車載ナビゲーション装置に関し、特に、近距離無線通信システムの通信端末が複数搭載される車載ナビゲーション装置に関する。 The present invention relates to an in-vehicle navigation device, and more particularly to an in-vehicle navigation device in which a plurality of communication terminals of a short-range wireless communication system are mounted.
　近年、車載ナビゲーション装置と、スマートフォン等をＢＴ（ＢＬＵＥＴＯＯＴＨ（登録商標））または無線ＬＡＮ等の近距離無線通信手段によって接続し、車両の運転者が運転中でもハンズフリーで通話可能となるＨＦＰ（ＨＡＮＤＳ　ＦＲＥＥ　ＰＲＯＦＩＬＥ）機能を有したシステムが車両に搭載されるようになってきた。 In recent years, an in-vehicle navigation device and a smartphone or the like are connected by a short-range wireless communication means such as BT (BLUETOOTH (registered trademark)) or a wireless LAN, and the vehicle driver can perform a hands-free call even while driving. A system having a (PROFILE) function has been mounted on a vehicle.
　スマートフォン等の携帯型の情報端末において、近距離無線通信を行う際の電力は内蔵する電池から供給されるが、このような場合には近距離無線通信の低消費電力化を図って、電池の電池残量を伸ばすことが重要である。特に、アクセスポイントを経由せずに無線通信を行う情報端末同士を無線ＬＡＮ接続する場合（アドホックモード）には、無線通信可能な情報端末の存在を認識するためのビーコン信号の送信が必要となるため、その分は消費電力が大きくなる。このため、無線通信を行わないときには、無線通信機能をほぼ停止するスリープ動作にすることが必要である。 In portable information terminals such as smartphones, power for short-range wireless communication is supplied from a built-in battery. In such a case, the power consumption of the short-range wireless communication is reduced. It is important to increase the battery level. In particular, when information terminals performing wireless communication without going through an access point are connected by wireless LAN (ad hoc mode), it is necessary to transmit a beacon signal for recognizing the existence of information terminals capable of wireless communication. Therefore, the power consumption increases accordingly. For this reason, when wireless communication is not performed, it is necessary to set a sleep operation that substantially stops the wireless communication function.
　従来の車載ナビゲーション装置としては、下記の特許文献１に記載の車載ナビゲーション装置（情報端末装置）が知られている。 As a conventional in-vehicle navigation device, an in-vehicle navigation device (information terminal device) described in Patent Document 1 below is known.
　以下、図６を用いて、特許文献１に記載の情報端末装置について説明する。図６は、無線によるデータ通信を行う情報端末装置間の機能を説明するブロック図である。 Hereinafter, the information terminal device described in Patent Document 1 will be described with reference to FIG. FIG. 6 is a block diagram illustrating functions between information terminal apparatuses that perform wireless data communication.
　情報端末装置９００は、低消費電力で無線通信が可能な第１無線通信部９２０と、無線ＬＡＮによるデータ通信を行う第２無線通信部９１０と、を備えている。同様に、情報端末装置９５０は、低消費電力で無線通信が可能な第１無線通信部９７０と、無線ＬＡＮによるデータ通信を行う第２無線通信部９６０と、を備えている。 The information terminal device 900 includes a first wireless communication unit 920 capable of wireless communication with low power consumption, and a second wireless communication unit 910 that performs data communication using a wireless LAN. Similarly, the information terminal device 950 includes a first wireless communication unit 970 that can perform wireless communication with low power consumption, and a second wireless communication unit 960 that performs data communication using a wireless LAN.
　また、情報端末装置９００と情報端末装置９５０との間で、データ通信を行うアドホックモードでは、原則的に第２無線通信部９１０または第２無線通信部９６０をスリープ動作状態にする。但し、実際のデータ通信が必要なときには第１無線通信部９２０を用いて通信相手の情報端末装置９５０に起動信号を送信し、第２無線通信部９６０を起動させる。 Further, in the ad hoc mode in which data communication is performed between the information terminal device 900 and the information terminal device 950, the second wireless communication unit 910 or the second wireless communication unit 960 is basically put into a sleep operation state. However, when actual data communication is necessary, the first wireless communication unit 920 is used to transmit an activation signal to the communication partner information terminal device 950 to activate the second wireless communication unit 960.
　そして、データ通信が完了すると第１無線通信部９７０を用いて、相手側の情報端末装置９００に停止信号を送信し、第２無線通信部９１０を休止させる。以上により、第２無線通信部９１０と第２無線通信部９６０とによるビーコン信号の送信を抑制して、適切な省電力化が図れる。 Then, when the data communication is completed, the first wireless communication unit 970 is used to transmit a stop signal to the counterpart information terminal device 900, and the second wireless communication unit 910 is suspended. As described above, transmission of a beacon signal by the second wireless communication unit 910 and the second wireless communication unit 960 can be suppressed, and appropriate power saving can be achieved.
米国特許公報７，７８７，８２１号明細書US Pat. No. 7,787,821
　しかしながら、車両エンジンを停止すると、車載ナビゲーション装置の電源はオンからオフに移行するため、直前まで動作中の車載ナビゲーション装置とスマートフォン等間とのＢＴ部または無線ＬＡＮ部の近距離無線通信は切断される。よって、スマートフォン等を車載ナビゲーション装置から制御できなくなり、スマートフォン等のＢＴ部または無線ＬＡＮ部を自動的にオフ状態に移行させる制御信号を送信することができないという課題があった。 However, when the vehicle engine is stopped, the power of the in-vehicle navigation device shifts from on to off, so the short-range wireless communication of the BT unit or the wireless LAN unit between the in-vehicle navigation device that is operating until just before and the smartphone is disconnected. The Therefore, the smartphone or the like cannot be controlled from the in-vehicle navigation device, and there is a problem that a control signal for automatically shifting the BT unit or the wireless LAN unit of the smartphone or the like to the off state cannot be transmitted.
　本発明は、上述した課題を解決するもので、車載ナビゲーション装置の電源がオンからオフに移行しても、スマートフォン等との間でＢＴ－ＬＥ（ＢＬＵＥＴＯＯＴＨ（登録商標）　ＬＯＷ　ＥＮＥＲＧＹ）部による近距離無線通信を行い、スマートフォン等のＢＴ部または無線ＬＡＮ部を自動的にオフ状態に移行させる制御信号を送信することができる車載ナビゲーション装置を提供することを目的とする。 The present invention solves the above-described problem. Even when the power of the on-vehicle navigation device is switched from on to off, the BT-LE (BLUETOOTH (registered trademark) LOW ENERGY) unit is close to the smartphone or the like. An object of the present invention is to provide an in-vehicle navigation device capable of performing wireless communication and transmitting a control signal for automatically shifting a BT unit such as a smartphone or a wireless LAN unit to an off state.
　この課題を解決するために、請求項１に記載の車載ナビゲーション装置は、車両に搭載されて、エンジンの始動および停止と連動して、オンおよびオフされる。また、無線通信により情報データの送受信を行う情報データ通信部と、前記情報データ通信部より少ない消費電力で近距離無線通信が可能な低消費電力通信部とを有する情報端末に対して、前記情報データ通信部との間で近距離無線通信を行う第１情報データ通信部を備える。また、前記低消費電力通信部との間で近距離無線通信を行う常時起動している第１低消費電力通信部に接続され、前記車両に搭載され常時起動している車体制御部に接続される。前記エンジンの停止時には前記第１低消費電力通信部によって、前記情報端末の前記低消費電力通信部と近距離無線通信し、前記情報端末の前記情報データ通信部をオフにする制御信号を送信することを特徴とする。 In order to solve this problem, the vehicle-mounted navigation device according to claim 1 is mounted on a vehicle and turned on and off in conjunction with engine start and stop. In addition, for the information terminal having an information data communication unit that transmits and receives information data by wireless communication and a low power consumption communication unit capable of short-range wireless communication with less power consumption than the information data communication unit, the information A first information data communication unit that performs short-range wireless communication with the data communication unit is provided. In addition, it is connected to the first low power consumption communication unit that is normally activated and performs near field communication with the low power consumption communication unit, and is connected to the vehicle body control unit that is mounted on the vehicle and is normally activated. The When the engine is stopped, the first low power consumption communication unit performs short-range wireless communication with the low power consumption communication unit of the information terminal and transmits a control signal for turning off the information data communication unit of the information terminal. It is characterized by that.
　また、請求項２に記載の前記車載ナビゲーション装置は、前記車載ナビゲーション装置を制御する制御部を備える。また、前記第１低消費電力通信部が、前記車両に搭載され常時起動している前記車体制御部、または、前記制御部のいずれか一方に択一的に接続される。前記車載ナビゲーション装置がオンの場合には、前記第１低消費電力通信部は、前記制御部と接続され、前記車載ナビゲーション装置がオフの場合には、前記第１低消費電力通信部が、前記車体制御部と接続されることを特徴とする。 Further, the in-vehicle navigation device according to claim 2 includes a control unit that controls the in-vehicle navigation device. In addition, the first low power consumption communication unit is alternatively connected to either the vehicle body control unit that is mounted on the vehicle and is always activated, or the control unit. When the in-vehicle navigation device is on, the first low power consumption communication unit is connected to the control unit, and when the in-vehicle navigation device is off, the first low power consumption communication unit is It is connected to the vehicle body control unit.
　また、請求項３に記載の前記車載ナビゲーション装置は、前記車両への運転者の乗車が検知されたときに、前記第１低消費電力通信部が、前記車体制御部から送信される前記情報端末との接続要求を受信する。次に、前記第１低消費電力通信部が、前記情報端末の前記低消費電力通信部と近距離無線通信にて接続されると、前記エンジンの停止中であっても、前記情報端末の前記情報データ通信部を起動する制御信号を送信することを特徴とする。 Further, in the in-vehicle navigation device according to claim 3, the information terminal in which the first low power consumption communication unit is transmitted from the vehicle body control unit when a rider of the driver on the vehicle is detected. A connection request is received. Next, when the first low power consumption communication unit is connected to the low power consumption communication unit of the information terminal by short-range wireless communication, even if the engine is stopped, the information terminal A control signal for starting the information data communication unit is transmitted.
　請求項１の発明によれば、車載ナビゲーション装置は、車両エンジンの始動および停止と連動して電源をオンおよびオフするので、車両エンジンを停止すると車載ナビゲーション装置の電源はオフにされる。しかし、ＢＴ－ＬＥ部のみに車両バッテリーより電源供給されているので、スマートフォン側のＢＴ－ＬＥ部と近距離無線通信を行うことで、スマートフォン側のＢＴ部または無線ＬＡＮ部をオフにする制御信号を送信することができる。 According to the first aspect of the present invention, since the vehicle-mounted navigation device turns on and off the power in conjunction with the start and stop of the vehicle engine, the vehicle-mounted navigation device is turned off when the vehicle engine is stopped. However, since power is supplied from the vehicle battery only to the BT-LE unit, a control signal for turning off the BT unit or the wireless LAN unit on the smartphone side by performing short-range wireless communication with the BT-LE unit on the smartphone side. Can be sent.
　請求項２の発明によれば、車載ナビゲーション装置の電源がオン時には、ＢＴ－ＬＥ部は車載ナビゲーション装置の制御部に接続されるので、同一周波数帯を使用するＢＴ部または無線ＬＡＮ部の近距離無線通信に対して通信妨害を与えないように、同時に通信しない制御をすることができる。また、車載ナビゲーション装置の電源がオフ時には、ＢＴ－ＬＥ部はＣＡＮ（ＣＯＮＴＲＯＬＬＥＲ　ＡＲＥＡ　ＮＥＴＷＯＲＫ）を介してＢＣＭ（ＢＯＤＹ　ＣＯＮＴＲＯＬ　ＭＯＤＵＬＥ）と接続されることにより、ＢＣＭはＢＴ－ＬＥ部を制御することができ、スマートフォン側のＢＴ部または無線ＬＡＮ部をオフにすることができる。 According to the invention of claim 2, when the power of the in-vehicle navigation device is turned on, the BT-LE unit is connected to the control unit of the in-vehicle navigation device, so the short distance of the BT unit or the wireless LAN unit using the same frequency band It is possible to control not to perform communication at the same time so as not to interfere with wireless communication. In addition, when the power of the in-vehicle navigation system is off, the BT-LE unit can be connected to the BCM (BODY CONTROL MODULE) via the CAN (CONTROLLER AREA NETWORK), so that the BCM can control the BT-LE unit. The BT unit or the wireless LAN unit on the smartphone side can be turned off.
　請求項３の発明によれば、ＢＣＭは車両への運転者の乗車を検知すると、ＣＡＮを介して車載ナビゲーション装置のＢＴ－ＬＥ部を制御して、スマートフォンのＢＴ－ＬＥ部との接続を試みる。スマートフォンとの接続が確立されるとスマートフォン側のＢＴ部を起動させることができるので、車両の運転者が車両エンジンを始動したときには、すぐにＢＴ部を使用してＨＦＰ機能を使用することが可能となり、車両走行中の安全性を向上することができる。 According to the invention of claim 3, when the BCM detects that the driver has boarded the vehicle, the BCM controls the BT-LE part of the in-vehicle navigation device via the CAN and tries to connect to the BT-LE part of the smartphone. . When the connection with the smartphone is established, the BT unit on the smartphone side can be activated, so that when the vehicle driver starts the vehicle engine, the HFP function can be used immediately using the BT unit. Thus, safety during vehicle travel can be improved.
　以上により、本発明によれば、車載ナビゲーション装置の電源がオンからオフに移行した場合であっても、スマートフォン等のＢＴ部または無線ＬＡＮ部を自動的にオフにすることができる車載ナビゲーション装置を提供することができる。 As described above, according to the present invention, there is provided an in-vehicle navigation device that can automatically turn off a BT unit or a wireless LAN unit such as a smartphone even when the power of the in-vehicle navigation device is switched from on to off. Can be provided.
本発明の第１実施形態に係る車載ナビゲーション装置の構成を示すブロック図である。It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係るスマートフォンの構成を示すブロック図である。It is a block diagram which shows the structure of the smart phone which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る車両への乗車時の車載ナビゲーション装置とスマートフォンの処理を示すフローチャートである。It is a flowchart which shows the process of the vehicle-mounted navigation apparatus and smart phone at the time of boarding to the vehicle which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る車両からの降車時の車載ナビゲーション装置とスマートフォンの処理を示すフローチャートである。It is a flowchart which shows the process of the vehicle-mounted navigation apparatus and smart phone at the time of alighting from the vehicle which concerns on 1st Embodiment of this invention. 変形例１の車載ナビゲーション装置の構成を示すブロック図である。It is a block diagram which shows the structure of the vehicle-mounted navigation apparatus of the modification 1. 従来例１の情報端末装置間の機能を説明するブロック図である。It is a block diagram explaining the function between the information terminal devices of the prior art example 1. FIG.
　［第１実施形態］
　以下に、本発明の第１実施形態における車載ナビゲーション装置１００について図１から図４までを用いて説明する。 [First Embodiment]
Hereinafter, the in-vehicle navigation device 100 according to the first embodiment of the present invention will be described with reference to FIGS.
　第１実施形態における車載ナビゲーション装置１００の構成について図１を用いて説明する。 The configuration of the in-vehicle navigation device 100 according to the first embodiment will be described with reference to FIG.
　車載ナビゲーション装置１００は図１に示すように、制御部としての第１マイコン２０と、第１低消費電力通信部としての第１ＢＴ－ＬＥ部１０と、近距離無線通信を行う第１情報データ通信部としての第１ＢＴ部４０と、第１無線ＬＡＮ部３０と、を備えて構成される。 As shown in FIG. 1, the in-vehicle navigation device 100 includes a first microcomputer 20 as a control unit, a first BT-LE unit 10 as a first low power consumption communication unit, and a first information data communication that performs short-range wireless communication. The first BT unit 40 as a unit and the first wireless LAN unit 30 are configured.
　第１マイコン２０は、第１ＢＴ－ＬＥ部１０と、第１ＢＴ部４０と、第１無線ＬＡＮ部３０と、にそれぞれ接続され、これらを制御する。また、第１マイコン２０は、図示しないインターフェイスを介して常時起動している車体制御部としてのＢＣＭ３００に接続されている。 The first microcomputer 20 is connected to and controls the first BT-LE unit 10, the first BT unit 40, and the first wireless LAN unit 30, respectively. The first microcomputer 20 is connected to a BCM 300 serving as a vehicle body control unit that is always activated through an interface (not shown).
　第１ＢＴ－ＬＥ部１０は、図示しないインターフェイスを介して、車両内の機器間データ通信ネットワークの端末であるＣＡＮ２００と接続され、ＢＣＭ３００と、第１マイコン２０と、のいずれか一方に択一的に接続されている。また、第１ＢＴ－ＬＥ部１０は、図示しないインターフェイスを介して、図示しない車両バッテリーより電源供給されているので常時起動している。 The first BT-LE unit 10 is connected to a CAN 200, which is a terminal of a device-to-device data communication network, via an interface (not shown), and is selectively used as one of the BCM 300 and the first microcomputer 20. It is connected. The first BT-LE unit 10 is always activated because power is supplied from a vehicle battery (not shown) via an interface (not shown).
　第１ＢＴ部４０は、ＨＦＰ機能の動作時には後述する情報端末としてのスマートフォン６００との間でデータ通信を行う。ＨＦＰ機能は、車両の運転者が運転中にスマートフォン６００を直接操作することを運転中の安全性の観点から、国内外の法令にて禁止されているため、運転者が車両内に設置されている図示しないマイクおよびスピーカー等を介して、運転中でもハンズフリーでスマートフォン６００の携帯電話機能を利用して通話する機能である。 The first BT unit 40 performs data communication with a smartphone 600 as an information terminal described later when the HFP function is operated. The HFP function is prohibited by domestic and foreign laws and regulations from the viewpoint of safety during driving that the driver of the vehicle directly operates the smartphone 600 while driving, so the driver is installed in the vehicle. This is a function for making a call using the mobile phone function of the smartphone 600 in a hands-free manner during driving through a microphone and a speaker (not shown).
　第１無線ＬＡＮ部３０は、後述するスマートフォン６００との間でデータ通信を行う。しかし、アクセスポイントを経由しないアドホックモードでは、通信相手を探すために、ビーコン信号の送信が必要となる。また、第１無線ＬＡＮ部３０は、第１ＢＴ－ＬＥ部１０および第１ＢＴ部４０よりも通信距離が長い。 The first wireless LAN unit 30 performs data communication with a smartphone 600 described later. However, in the ad hoc mode that does not pass through the access point, it is necessary to transmit a beacon signal in order to search for a communication partner. The first wireless LAN unit 30 has a longer communication distance than the first BT-LE unit 10 and the first BT unit 40.
　ＢＣＭ３００は、車両内に設置されている図示しないマイクおよびスピーカー等と図示しないインターフェイスを介して接続されている。また、車両の運転席側に設置されている運転者を検知するシートセンサー等と、図示しないインターフェイスと、を介して接続されている。また、ＢＣＭ３００は、ＣＡＮ２００を介して車両内の他の制御部等と接続し制御するため、常時起動している。 The BCM 300 is connected to a microphone and a speaker (not shown) installed in the vehicle via an interface (not shown). Moreover, it connects through the seat sensor etc. which detect the driver | operator installed in the driver's seat side of a vehicle, and the interface which is not shown in figure. Further, since the BCM 300 is connected to and controlled by other control units in the vehicle via the CAN 200, the BCM 300 is always activated.
　ＣＡＮ２００は、車両内における相互接続された機器間のデータ通信に使用されている通信端末であり常時起動している。また、図示しないインターフェイスを介して第１ＢＴ－ＬＥ部１０と接続されている。また、ＣＡＮ２００は、ＢＣＭ３００と接続されている。 The CAN 200 is a communication terminal used for data communication between interconnected devices in the vehicle and is always activated. Further, it is connected to the first BT-LE unit 10 via an interface (not shown). The CAN 200 is connected to the BCM 300.
　ここで、車載ナビゲーション装置１００と近距離無線通信するスマートフォン６００の構成について、図２を用いて説明する。また、スマートフォン６００と車載ナビゲーション装置１００は、予め互いの機器のＩＤ（ＩＤＥＮＴＩＦＩＣＡＴＩＯＮ）コードを登録しておく。これにより、スマートフォン６００と車載ナビゲーション装置１００との間で、近距離無線通信を行う際にはＩＤコードの認証を行い、認証が成立した場合に近距離無線通信が可能となる。 Here, the configuration of the smartphone 600 that performs near field communication with the in-vehicle navigation device 100 will be described with reference to FIG. In addition, the smart phone 600 and the in-vehicle navigation device 100 register the ID (IDENTIFICATION) code of each other device in advance. Thereby, when short-distance wireless communication is performed between the smart phone 600 and the vehicle-mounted navigation device 100, authentication of the ID code is performed, and short-distance wireless communication is enabled when authentication is established.
　スマートフォン６００は、第２マイコン８５と、携帯電話部５０と、第２無線ＬＡＮ部６０と、第２ＢＴ部７０と、第２ＢＴ－ＬＥ部８０と、電池９５と、を備えて構成される。 The smartphone 600 includes a second microcomputer 85, a mobile phone unit 50, a second wireless LAN unit 60, a second BT unit 70, a second BT-LE unit 80, and a battery 95.
　第２マイコン８５は、無線通信システムにより情報データの送受信を行う携帯電話機能としての携帯電話部５０と、情報データ通信部としての第２無線ＬＡＮ部６０と、第２ＢＴ部７０と、低消費電力通信部としての第２ＢＴ－ＬＥ部８０と、を制御してスマートフォン６００に搭載している電池９５の使用時間を長くする。 The second microcomputer 85 includes a mobile phone unit 50 as a mobile phone function for transmitting and receiving information data by a wireless communication system, a second wireless LAN unit 60 as an information data communication unit, a second BT unit 70, and low power consumption. The second BT-LE unit 80 as a communication unit is controlled to extend the usage time of the battery 95 mounted on the smartphone 600.
　携帯電話部５０は、携帯電話基地局を経由して外部との無線通信を行う。また、ＨＦＰ機能を使用するときは主に音声通話機能を使用する。 The mobile phone unit 50 performs wireless communication with the outside via a mobile phone base station. When using the HFP function, the voice call function is mainly used.
　第２無線ＬＡＮ部６０は、通常アクセスポイントを経由して公衆通信網にアクセスして、データ通信を行っている。また、本実施形態での第２無線ＬＡＮ部６０は、アクセスポイントを経由しないアドホックモードにて、直接、車載ナビゲーション装置１００の第１無線ＬＡＮ部３０との間で、情報データの送受信を行う。 The second wireless LAN unit 60 performs data communication by accessing the public communication network via a normal access point. In addition, the second wireless LAN unit 60 in the present embodiment directly transmits and receives information data to and from the first wireless LAN unit 30 of the in-vehicle navigation device 100 in an ad hoc mode that does not pass through an access point.
　第２ＢＴ部７０は、ＨＦＰ機能の動作を行う際に携帯電話部５０との間でデータの送受信を行う。また、車載ナビゲーション装置１００の第１ＢＴ部４０との間でＨＦＰ機能に関するデータの送受信を行う。 The second BT unit 70 transmits and receives data to and from the mobile phone unit 50 when performing the operation of the HFP function. In addition, data related to the HFP function is transmitted to and received from the first BT unit 40 of the in-vehicle navigation device 100.
　電池９５は、第２マイコン８５と、携帯電話部５０と、第２無線ＬＡＮ部６０と、第２ＢＴ部７０と、第２ＢＴ－ＬＥ部８０と、に接続され電源を供給している。 The battery 95 is connected to the second microcomputer 85, the mobile phone unit 50, the second wireless LAN unit 60, the second BT unit 70, and the second BT-LE unit 80 to supply power.
　第２ＢＴ－ＬＥ部８０は、車載ナビゲーション装置１００の電源がオフの場合でも、第１ＢＴ－ＬＥ部１０との間で近距離無線通信を行い、第２ＢＴ部７０または第２無線ＬＡＮ部６０をオフにする制御信号を受信する。 The second BT-LE unit 80 performs short-range wireless communication with the first BT-LE unit 10 and turns off the second BT unit 70 or the second wireless LAN unit 60 even when the power of the in-vehicle navigation device 100 is off. A control signal is received.
　ここで、車両への運転者の乗車時における車載ナビゲーション装置１００の動作について、図３を用いて、ＨＦＰ機能が開始する場合を説明する。図３は第１実施形態に係る車載ナビゲーション装置１００の動作を示すフローチャートで、手順Ｓ１－ｍは車載ナビゲーション装置１００の処理を示し、手順Ｓ２－ｎはスマートフォン６００の処理を示している（ｍ、ｎは自然数）。 Here, the operation of the in-vehicle navigation device 100 when the driver gets on the vehicle will be described with reference to FIG. 3 when the HFP function starts. FIG. 3 is a flowchart showing the operation of the in-vehicle navigation device 100 according to the first embodiment. The procedure S1-m shows the processing of the in-vehicle navigation device 100, and the procedure S2-n shows the processing of the smartphone 600 (m, n is a natural number).
　手順Ｓ１－１で、車両エンジンは停止中なので車載ナビゲーション装置１００の電源はオフになっている。しかし、車載ナビゲーション装置１００に内蔵している第１ＢＴ－ＬＥ部１０は、一定の時間間隔でスマートフォン６００の第２ＢＴ－ＬＥ部８０に対して接続要求を行っている。 In step S1-1, since the vehicle engine is stopped, the power of the in-vehicle navigation device 100 is turned off. However, the first BT-LE unit 10 built in the in-vehicle navigation device 100 makes a connection request to the second BT-LE unit 80 of the smartphone 600 at regular time intervals.
　手順Ｓ２－１で、スマートフォン６００に内蔵している第２ＢＴ－ＬＥ部８０は、一定の時間間隔で車載ナビゲーション装置１００に内蔵している第１ＢＴ－ＬＥ部１０に対して接続要求を行っている。また、スマートフォン６００に内蔵している第２ＢＴ部７０と、第２無線ＬＡＮ部６０と、はオフ状態となっているため、スマートフォン６００は低消費電力にて動作している。 In step S2-1, the second BT-LE unit 80 built in the smartphone 600 makes a connection request to the first BT-LE unit 10 built in the vehicle-mounted navigation device 100 at regular time intervals. . In addition, since the second BT unit 70 and the second wireless LAN unit 60 built in the smartphone 600 are in an off state, the smartphone 600 operates with low power consumption.
　手順Ｓ１－２で、スマートフォン６００を携帯した運転者が車両に乗車する。次に、車両運転席側のシートセンサー等は、運転者が車両に乗車したことを検知して、図示しないインターフェイスを介してＢＣＭ３００に検知信号を送る。ＢＣＭ３００はＣＡＮ２００と、図示しないインターフェイスと、を介して第１ＢＴ－ＬＥ部１０を制御し、第２ＢＴ－ＬＥ部８０との通信を試みる。 In step S1-2, the driver carrying the smartphone 600 gets on the vehicle. Next, a seat sensor or the like on the vehicle driver's seat side detects that the driver has boarded the vehicle, and sends a detection signal to the BCM 300 via an interface (not shown). The BCM 300 attempts to communicate with the second BT-LE unit 80 by controlling the first BT-LE unit 10 via the CAN 200 and an interface (not shown).
　手順Ｓ１－３で、第１ＢＴ－ＬＥ部１０は、第２ＢＴ－ＬＥ部８０との通信距離範囲となる。次に、ＢＣＭ３００はＣＡＮ２００と、図示しないインターフェイスと、を介して第１ＢＴ－ＬＥ部１０を制御し、第２ＢＴ－ＬＥ部８０に対してＩＤコードと接続要求を含む質問信号の送信を行う。 In step S1-3, the first BT-LE unit 10 becomes a communication distance range with the second BT-LE unit 80. Next, the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown), and transmits an inquiry signal including an ID code and a connection request to the second BT-LE unit 80.
　手順Ｓ２－２で、第２ＢＴ－ＬＥ部８０は、第１ＢＴ－ＬＥ部１０からの質問信号を受信して、接続要求とＩＤコードを抽出し、予め登録されたＩＤコードとの認証を行う。次に、ＩＤコードを含む応答信号を第１ＢＴ－ＬＥ部１０に送信して、車載ナビゲーション装置１００とスマートフォン６００のＢＴ－ＬＥ部間の接続を確立する。 In step S2-2, the second BT-LE unit 80 receives the inquiry signal from the first BT-LE unit 10, extracts the connection request and the ID code, and authenticates the ID code registered in advance. Next, a response signal including the ID code is transmitted to the first BT-LE unit 10 to establish a connection between the in-vehicle navigation device 100 and the BT-LE unit of the smartphone 600.
　手順Ｓ１－４で、ＢＣＭ３００はＣＡＮ２００と、図示しないインターフェイスと、を介して第１ＢＴ－ＬＥ部１０を制御し、スマートフォン６００の第２ＢＴ部７０の動作をオン（起動）にするように、第２ＢＴ－ＬＥ部８０に制御信号を送信する。 In step S1-4, the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown) to turn on (start up) the operation of the second BT unit 70 of the smartphone 600. A control signal is transmitted to the LE unit 80.
　手順Ｓ２－３で、第２ＢＴ－ＬＥ部８０は、第１ＢＴ－ＬＥ部１０からの制御信号を受信して、スマートフォン６００に内蔵している第２マイコン８５に制御信号を送る。次に、第２マイコン８５は、スマートフォン６００に内蔵している第２ＢＴ部７０の動作をオンにするように制御する。 In step S2-3, the second BT-LE unit 80 receives the control signal from the first BT-LE unit 10 and sends the control signal to the second microcomputer 85 built in the smartphone 600. Next, the second microcomputer 85 controls to turn on the operation of the second BT unit 70 built in the smartphone 600.
　手順Ｓ１－５で、車両に乗車した運転者は車両エンジンを始動する。これにより、車載ナビゲーション装置１００の電源はオフからオンに移行する。次に、車載ナビゲーション装置１００に内蔵している第１マイコン２０は、ＨＦＰ機能の動作を行うため、第１ＢＴ部４０を制御し、動作をオンにする。 In step S1-5, the driver who gets on the vehicle starts the vehicle engine. Thereby, the power supply of the vehicle-mounted navigation device 100 shifts from off to on. Next, the first microcomputer 20 built in the vehicle-mounted navigation device 100 controls the first BT unit 40 to turn on the operation in order to perform the operation of the HFP function.
　手順Ｓ１－６で、第１マイコン２０は第１ＢＴ部４０を制御し、スマートフォン６００の第２ＢＴ部７０に対してＩＤコードと接続要求を含む質問信号の送信を行う。 In step S1-6, the first microcomputer 20 controls the first BT unit 40, and transmits a question signal including an ID code and a connection request to the second BT unit 70 of the smartphone 600.
　手順Ｓ２－４で、第２ＢＴ部７０は第１ＢＴ部４０からの質問信号を受信して、接続要求とＩＤコードを抽出し、予め登録されたＩＤコードとの認証を行う。次に、ＩＤコードを含む応答信号を第１ＢＴ部４０に送信して、車載ナビゲーション装置１００とスマートフォン６００のＢＴ部間の接続を確立する。 In step S2-4, the second BT unit 70 receives the inquiry signal from the first BT unit 40, extracts the connection request and the ID code, and authenticates the ID code registered in advance. Next, a response signal including an ID code is transmitted to the first BT unit 40 to establish a connection between the in-vehicle navigation device 100 and the BT unit of the smartphone 600.
　手順Ｓ１－７で、第１マイコン２０は第１ＢＴ４０とＢＣＭ３００を制御し、ＨＦＰ機能の動作を開始する。また、第１ＢＴ部４０は第２ＢＴ部７０と近距離無線通信を行い、ＨＦＰ機能の動作をするように要求する。また、ＢＣＭ３００は、車両内に設置されている図示しないマイクおよびスピーカー等をＨＦＰ機能の動作を始動するように制御する。 In step S1-7, the first microcomputer 20 controls the first BT 40 and the BCM 300, and starts the operation of the HFP function. In addition, the first BT unit 40 performs short-range wireless communication with the second BT unit 70 and requests to operate the HFP function. Further, the BCM 300 controls a microphone and a speaker (not shown) installed in the vehicle so as to start the operation of the HFP function.
　手順Ｓ２－５で、第２マイコン８５は、第２ＢＴ部７０からのＨＦＰ機能の動作を行う要求の信号を受取、スマートフォン６００に内蔵している携帯電話部５０を制御して動作をオンにする。次に、第２マイコン８５は、携帯電話部５０と第２ＢＴ部７０にＨＦＰ機能の動作を行うように制御する。これらにより、車両の運転者は、車両内に設置されている図示しないマイクおよびスピーカー等を介して、携帯電話部５０との間で音声通話をハンズフリーで行うことができる。 In step S2-5, the second microcomputer 85 receives a request signal for operating the HFP function from the second BT unit 70, and controls the mobile phone unit 50 built in the smartphone 600 to turn on the operation. . Next, the second microcomputer 85 controls the mobile phone unit 50 and the second BT unit 70 to perform the operation of the HFP function. As a result, the driver of the vehicle can make a voice call hands-free with the mobile phone unit 50 via a microphone and a speaker (not shown) installed in the vehicle.
　以上説明したように、ＢＣＭ３００は車両への運転者の乗車を検知すると、ＣＡＮ２００と、図示しないインターフェイスと、を介して車載ナビゲーション装置１００の第１ＢＴ－ＬＥ部１０を制御して、スマートフォン６００の第２ＢＴ－ＬＥ部８０との接続を確立する。よって、ＢＣＭ３００は車両エンジンが始動する前に第２ＢＴ部７０をオンにさせる制御を行うことができる。従って、車両の運転者は車両エンジンを始動したときには、すぐにＢＴ通信を使用してＨＦＰ機能を動作させることが可能となり、車両走行中の安全性を向上することができる。 As described above, when the BCM 300 detects the ride of the driver on the vehicle, the BCM 300 controls the first BT-LE unit 10 of the in-vehicle navigation device 100 via the CAN 200 and the interface (not shown) to A connection with the 2BT-LE unit 80 is established. Therefore, the BCM 300 can perform control to turn on the second BT unit 70 before the vehicle engine is started. Therefore, when the vehicle driver starts the vehicle engine, it is possible to immediately operate the HFP function using the BT communication, and the safety during traveling of the vehicle can be improved.
　次に、車両からの運転者の降車時における車載ナビゲーション装置１００の動作について、図４を用いて、ＨＦＰ機能が停止する場合を説明する。図４は第１実施形態に係る車載ナビゲーション装置１００の動作を示すフローチャートで、手順Ｓ３－ｍは車載ナビゲーション装置１００の処理を示し、手順Ｓ４－ｎはスマートフォン６００の処理を示している。 Next, the operation of the in-vehicle navigation device 100 when the driver gets out of the vehicle will be described with reference to FIG. 4 when the HFP function is stopped. FIG. 4 is a flowchart showing the operation of the in-vehicle navigation device 100 according to the first embodiment. The procedure S3-m shows the processing of the in-vehicle navigation device 100, and the procedure S4-n shows the processing of the smartphone 600.
　手順Ｓ３－１で、車両エンジンは動作中なので、車載ナビゲーション装置１００の電源はオンになっている。また、ＢＣＭ３００は、図示しないインターフェイスを介して車載ナビゲーション装置１００に内蔵している第１マイコン２０と接続されて、ＨＦＰ機能の動作をしている。 In step S3-1, since the vehicle engine is operating, the power of the in-vehicle navigation device 100 is turned on. In addition, the BCM 300 is connected to the first microcomputer 20 built in the vehicle-mounted navigation device 100 via an interface (not shown) and operates as an HFP function.
　手順Ｓ３－２で、第１マイコン２０は、第１ＢＴ部４０を制御してスマートフォン６００との間でＨＦＰ機能の動作をしている。 In step S3-2, the first microcomputer 20 controls the first BT unit 40 to operate the HFP function with the smartphone 600.
　手順Ｓ４－１で、スマートフォン６００に内蔵している第２マイコン８５は、第２ＢＴ部７０と、携帯電話部５０と、を制御して車載ナビゲーション装置１００との間でＨＦＰ機能の動作をしている。 In step S4-1, the second microcomputer 85 built in the smartphone 600 controls the second BT unit 70 and the mobile phone unit 50 to operate the HFP function with the in-vehicle navigation device 100. Yes.
　手順Ｓ３－３で、車両の運転者は車両エンジンを停止する。次に、車載ナビゲーション装置１００の電源はオンからオフに移行するので、第１マイコン２０と第１ＢＴ部４０の動作はオフになる。よって、スマートフォン６００を車載ナビゲーション装置１００から制御できなくなり、スマートフォン６００の第２ＢＴ部７０を自動的にオフ状態に移行させる制御信号を送信することができない状態となる。また、ＢＣＭ３００は、第１マイコン２０との接続は切断されて、ＣＡＮ２００と、図示しないインターフェイスと、を介して第１ＢＴ－ＬＥ部１０との接続に切り替える。 In step S3-3, the vehicle driver stops the vehicle engine. Next, since the power supply of the vehicle-mounted navigation device 100 shifts from on to off, the operations of the first microcomputer 20 and the first BT unit 40 are turned off. Therefore, the smart phone 600 cannot be controlled from the in-vehicle navigation device 100, and the control signal for automatically shifting the second BT unit 70 of the smart phone 600 to the off state cannot be transmitted. Further, the BCM 300 is disconnected from the first microcomputer 20 and switched to the connection with the first BT-LE unit 10 via the CAN 200 and an interface (not shown).
　手順Ｓ３－４で、ＢＣＭ３００は、ＣＡＮ２００と、図示しないインターフェイスと、を介して、第１ＢＴ－ＬＥ部１０を制御してＨＦＰ機能を停止する要求をスマートフォン６００に内蔵されている第２ＢＴ－ＬＥ部８０に対して送信する。また、ＢＣＭ３００は、車両内に設置されている図示しないマイクおよびスピーカー等に対して、ＨＦＰ機能の動作を停止する制御を行う。 In step S3-4, the BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown) to request the second BT-LE unit built in the smartphone 600 to stop the HFP function. To 80. In addition, the BCM 300 performs control to stop the operation of the HFP function for a microphone and a speaker (not shown) installed in the vehicle.
　手順Ｓ４－２で、第２ＢＴ－ＬＥ部８０は、第１ＢＴ－ＬＥ部１０からのＨＦＰ機能を停止する要求を受信して、スマートフォン６００に内蔵されている第２マイコン８５に送る。次に、第２マイコン８５は、携帯電話部５０と第２ＢＴ部７０にＨＦＰ機能を停止する制御を行う。次に、第２マイコン８５は、第２ＢＴ部７０をオフ状態に移行する制御を行う。 In step S4-2, the second BT-LE unit 80 receives the request to stop the HFP function from the first BT-LE unit 10 and sends the request to the second microcomputer 85 built in the smartphone 600. Next, the second microcomputer 85 controls the mobile phone unit 50 and the second BT unit 70 to stop the HFP function. Next, the second microcomputer 85 performs control to shift the second BT unit 70 to the off state.
　手順Ｓ３－５で、スマートフォン６００を携帯した車両の運転者が車両から降車する。次に、車両運転席側のシートセンサー等は車両の運転者が車両から降車したことを検知して、図示しないインターフェイスを介してＢＣＭ３００に検知信号を送る。ＢＣＭ３００はＣＡＮ２００と、図示しないインターフェイスと、を介して第１ＢＴ－ＬＥ部１０を制御し、一定の時間間隔で第２ＢＴ－ＬＥ部８０に対して接続要求を行うことを再開する。 In step S3-5, the driver of the vehicle carrying the smartphone 600 gets off the vehicle. Next, a seat sensor or the like on the vehicle driver's seat side detects that the vehicle driver has got off the vehicle, and sends a detection signal to the BCM 300 via an interface (not shown). The BCM 300 controls the first BT-LE unit 10 via the CAN 200 and an interface (not shown), and resumes making a connection request to the second BT-LE unit 80 at regular time intervals.
　以上説明したように、車両の運転者が車両エンジンを停止すると、車載ナビゲーション装置１００の電源はオフにされる。しかし、第１ＢＴ－ＬＥ部１０は常時起動しているので、スマートフォン６００側の第２ＢＴ－ＬＥ部８０と近距離無線通信を行うことで、車載ナビゲーション装置１００からスマートフォン６００を制御して第２ＢＴ部７０をオフにすることができる。 As described above, when the driver of the vehicle stops the vehicle engine, the power of the in-vehicle navigation device 100 is turned off. However, since the first BT-LE unit 10 is always activated, the second BT unit is controlled by controlling the smartphone 600 from the in-vehicle navigation device 100 by performing short-range wireless communication with the second BT-LE unit 80 on the smartphone 600 side. 70 can be turned off.
　よって、スマートフォン６００の消費電力を低減することができ、電池９５の電池残量を伸ばすことができる。 Therefore, the power consumption of the smartphone 600 can be reduced, and the remaining battery level of the battery 95 can be increased.
　以上のように、本発明の第１実施形態に係る車載ナビゲーション装置１００を具体的に説明したが、本発明は上記の実施形態に限定されるものではなく、要旨を逸脱しない範囲で種々変更して実施することが可能である。例えば次のように変形して実施することができ、これらの実施形態も本発明の技術的範囲に属する。 As described above, the vehicle-mounted navigation device 100 according to the first embodiment of the present invention has been specifically described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Can be implemented. For example, the present invention can be modified as follows, and these embodiments also belong to the technical scope of the present invention.
　＜変形例１＞
　第１実施形態において、車載ナビゲーション装置１００は、第１ＢＴ－ＬＥ部１０を内蔵しているが、図５に示すように車載ナビゲーション装置４００では、第３ＢＴ－ＬＥ部９０を内蔵せずに外付けされても、第３ＢＴ－ＬＥ部９０は、スマートフォン６００との間で近距離無線通信を行いスマートフォン６００に内蔵される第２ＢＴ部７０を自動的にオフ状態にさせることにしても良い。 <Modification 1>
In the first embodiment, the in-vehicle navigation device 100 includes the first BT-LE unit 10, but the in-vehicle navigation device 400 does not include the third BT-LE unit 90 as shown in FIG. Even so, the third BT-LE unit 90 may perform short-range wireless communication with the smartphone 600 to automatically turn off the second BT unit 70 built in the smartphone 600.
　１０　　第１ＢＴ－ＬＥ部
　２０　　第１マイコン
　３０　　第１無線ＬＡＮ部
　４０　　第１ＢＴ部
　５０　　携帯電話部
　６０　　第２無線ＬＡＮ部
　７０　　第２ＢＴ部
　８０　　第２ＢＴ－ＬＥ部
　８５　　第２マイコン
　９０　　第３ＢＴ－ＬＥ部
　９５　　電池
　１００　車載ナビゲーション装置
　２００　ＣＡＮ
　３００　ＢＣＭ
　４００　車載ナビゲーション装置
　６００　スマートフォン
　９００　情報端末装置
　９１０　第２無線通信部
　９２０　第１無線通信部
　９５０　情報端末装置
　９６０　第２無線通信部
　９７０　第１無線通信部 10 First BT-LE unit 20 First microcomputer 30 First wireless LAN unit 40 First BT unit 50 Mobile phone unit 60 Second wireless LAN unit 70 Second BT unit 80 Second BT-LE unit 85 Second microcomputer 90 Third BT-LE unit 95 Battery 100 On-vehicle navigation device 200 CAN
300 BCM
400 In-vehicle navigation device 600 Smartphone 900 Information terminal device 910 Second wireless communication unit 920 First wireless communication unit 950 Information terminal device 960 Second wireless communication unit 970 First wireless communication unit

Claims (3)

  1. 　車両に搭載されたエンジンの始動および停止と連動して、オンおよびオフされる車載ナビゲーション装置であって、
    　無線通信により情報データの送受信を行う情報データ通信部と、前記情報データ通信部より少ない消費電力で近距離無線通信が可能な低消費電力通信部と、を有する情報端末に対して、
    　前記情報データ通信部との間で近距離無線通信を行う第１情報データ通信部を備えるとともに、前記低消費電力通信部との間で近距離無線通信を行う第１低消費電力通信部に接続され、
    　前記車両に搭載され常時起動している車体制御部に接続されて、
    　前記エンジンの停止時には前記第１低消費電力通信部によって、前記情報端末の前記低消費電力通信部と近距離無線通信し、
    　前記情報端末の前記情報データ通信部をオフにする制御信号を送信することを特徴とする車載ナビゲーション装置。     An in-vehicle navigation device that is turned on and off in conjunction with the start and stop of an engine mounted on a vehicle,
    For an information terminal having an information data communication unit that transmits and receives information data by wireless communication, and a low power consumption communication unit capable of short-range wireless communication with less power consumption than the information data communication unit,
    A first information data communication unit that performs short-range wireless communication with the information data communication unit and is connected to a first low-power consumption communication unit that performs short-range wireless communication with the low-power consumption communication unit And
    Connected to the vehicle body control unit that is mounted on the vehicle and is always activated,
    When the engine is stopped, the first low power consumption communication unit performs near field communication with the low power consumption communication unit of the information terminal,
    A vehicle-mounted navigation device that transmits a control signal for turning off the information data communication unit of the information terminal.
  2. 　前記第１低消費電力通信部は、前記車両に搭載され常時起動している前記車体制御部、または、前記車載ナビゲーション装置を制御する制御部、のいずれか一方に択一的に接続され、
    　前記車載ナビゲーション装置がオンの場合には、前記第１低消費電力通信部は、前記制御部と接続され、
    　前記車載ナビゲーション装置がオフの場合には、前記第１低消費電力通信部は、前記車体制御部と接続されることを特徴とする請求項１記載の車載ナビゲーション装置。     The first low power consumption communication unit is alternatively connected to either the vehicle body control unit that is mounted on the vehicle and is normally activated, or a control unit that controls the in-vehicle navigation device,
    When the in-vehicle navigation device is on, the first low power consumption communication unit is connected to the control unit,
    The in-vehicle navigation device according to claim 1, wherein when the in-vehicle navigation device is off, the first low power consumption communication unit is connected to the vehicle body control unit.
  3. 　前記第１低消費電力通信部は、前記車両への運転者の乗車が検知されたときに前記車体制御部から送信される前記情報端末との接続要求を受信し、前記情報端末の前記低消費電力通信部と近距離無線通信にて接続されると、前記エンジンの停止中であっても、前記情報端末の前記情報データ通信部を起動する制御信号を送信することを特徴とする請求項１または請求項２のいずれかに記載の車載ナビゲーション装置。 The first low power consumption communication unit receives a connection request with the information terminal transmitted from the vehicle body control unit when a rider of the driver on the vehicle is detected, and the low power consumption of the information terminal The control signal for starting the information data communication unit of the information terminal is transmitted even when the engine is stopped when connected to a power communication unit by short-range wireless communication. Or the vehicle-mounted navigation apparatus in any one of Claim 2.
PCT/JP2014/079335 2013-11-06 2014-11-05 Onboard navigation device WO2015068726A1 (en)

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CN108806675A (en) * 2017-04-27 2018-11-13 丰田自动车株式会社 Voice input-output device, wireless connection method, speech dialogue system
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