JP2010130531A - Hands-free device and radio connection method for hands-free device and portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To preferentially connect a portable telephone n of a driver to an in-vehicle hands-free system 100 regardless of the situation of getting in a vehicle. <P>SOLUTION: This hands-free device has: a detection part 10 for detecting a vehicle signal input to a vehicle side at the start of vehicle operation; a selection part 20 for, when the vehicle signal is detected by the detection part 10, selecting a portable telephone n whose priority is the highest from among connectable portable telephones 1 to n by referring to priority information 21 associating the preliminarily prepared identifier of the portable terminal with the priority of radio connection with the hands-free system 100; and a connection part 30 for executing radio connection processing between the portable telephone n selected by the selection part 20 and the hands-free system 100. The hands-free system 100 is also provided with: an input device 40 including a microphone 41 and a touch panel 42; and an output device 50 including a speaker 51 and a display 52. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hands-free device that is mounted on a vehicle and is connected to a portable terminal that is brought into the vehicle, and a wireless connection method between the hands-free device and the portable terminal.

  When there is a connection request from a mobile device, the device with the highest priority is detected, and if the mobile device with the highest priority is detected within a certain time, it is connected with that device and is not detected within a certain time. In such a case, a technique for connecting to a portable device for which a connection request is first made is known (see Patent Document 1).

Japanese Patent Publication No. 2008-160646

  However, in this technology, when the mobile device with the highest priority is not detected within a certain time, the connection processing with the mobile device that requested the connection first is performed. If another occupant gets into the vehicle before the driver who owns it, the connection processing with the portable device owned by the other occupant will be processed, so the connection to the portable device owned by the driver must be switched again There was a problem.

  The problem to be solved by the present invention is to preferentially connect the driver's portable terminal to the in-vehicle hands-free device regardless of the state of boarding.

  In the present invention, one mobile terminal and a hands-free device that are selected when a vehicle signal that is input when driving starts is detected with reference to the priority of the mobile terminal that is wirelessly connected to the hands-free device. The above-mentioned problem is solved by wirelessly connecting.

  According to the present invention, the mobile terminal used by the driver can be recognized regardless of the state of boarding, so that the driver's mobile terminal can be preferentially connected to the in-vehicle hands-free device.

<First Embodiment>
The best mode of the hands-free system 100 according to the present invention will be described based on the drawings.

  A hands-free system 100 according to the first embodiment is a device that is mounted on a vehicle, wirelessly connects to one of portable terminals brought into the vehicle interior, and communicates with the outside.

  FIG. 1 is a functional block diagram of an in-vehicle device 1000 including a hands-free system 100. As shown in FIG. 1, the in-vehicle device 1000 includes a hands-free system 100, a vehicle controller 200, and in-vehicle sensors 300 (301 to 311). The hands-free system 100, the vehicle controller 200, and each in-vehicle sensor 300 are connected by a CAN (Controller Area Network) or other in-vehicle LAN, and exchange information with each other.

  The hands-free system 100 can be wirelessly connected to mobile phones 1 to 3 (also expressed as n). In this embodiment, an example using mobile phones 1 to 3 as an example of a mobile terminal will be described. However, the present invention is not limited to this. A personal computer having a wireless communication function, a PDA (Personal Digital Assistant having a wireless communication function) is used. ) Can be used as a portable terminal.

  The hands-free system 100 of the present embodiment includes a detection unit 10 that detects a vehicle signal, a selection unit 20 that selects one mobile phone to be wirelessly connected, a hands-free system 100, and mobile phones 1 to 3. And a connection unit 30 that performs wireless connection.

  In addition, the hands-free system 100 according to the present embodiment includes a microphone 41 that receives voice input, a touch panel 42 that receives user input commands, an input device 40 including other input devices, a speaker 51 that outputs voice, and character information. And a display 52 for outputting image information.

  The detection unit 10, the selection unit 20, and the connection unit 30 of the hands-free system 100 are stored in a ROM (Read Only Memory) that stores a program for executing the wireless connection process according to the present embodiment, and the ROM. By executing the program, a CPU (Central Processing Unit) as an operation circuit that functions as the hands-free system 100 and a RAM (Random Access Memory) that functions as an accessible storage device are provided. As an operation circuit, instead of or in addition to a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), etc. Can be used. The hardware cooperates with software that realizes a vehicle signal detection function, a selection function for selecting the highest-priority mobile phone, and a connection function for performing wireless connection, and the hands-free system 100 and the mobile phone. A wireless disconnection process with the telephone n is executed.

  Each configuration will be described below.

First, the detection unit 10 will be described. The detection unit 10 detects a vehicle signal input to the vehicle side when driving of the vehicle is started. It is preferable that the vehicle signal has a value that changes when the vehicle starts driving. A signal that changes according to a change in the state of the vehicle, a signal that changes according to the driver's input, and the presence of the driver. It includes a signal that changes according to The detection unit 10 acquires a vehicle signal obtained by the in-vehicle sensor 300 directly or via the vehicle controller 200, and detects a predetermined vehicle signal defined in advance. Specifically, the detection unit 10 is a vehicle signal related to the vehicle speed. A vehicle signal including one or more signals input in response to a vehicle signal related to the travel distance and other vehicle state changes is detected. The “vehicle signal related to the vehicle speed” is detected by the vehicle speed sensor 301, and the “vehicle signal related to the travel distance” is detected by the travel distance sensor 302.

  Further, the detection unit 10 changes the vehicle signal related to the release of the vehicle parking range, the vehicle signal related to the setting of the drive range of the vehicle, the vehicle signal related to the release of the parking brake of the vehicle, and the change of the side mirror position of the vehicle. One or more of a vehicle signal, a vehicle signal related to depression of a vehicle brake pedal, a vehicle signal related to depression of a vehicle accelerator pedal, a vehicle signal related to depression of a vehicle clutch pedal, and other signals input by a driver are included. A vehicle signal is detected.

  The “vehicle signal related to the cancellation of the parking range of the vehicle” and the “vehicle signal related to the setting of the drive range of the vehicle” are detected by the range position sensor 303. The “vehicle signal related to the release of the vehicle parking brake” is detected by the parking brake sensor 304, and the “vehicle signal related to the change of the vehicle side mirror position” is detected by the side mirror position sensor 305, The “vehicle signal related to the depression of the vehicle” is detected by the brake sensor 306, the “vehicle signal related to the depression of the accelerator pedal of the vehicle” is detected by the accelerator opening sensor 307, and the “vehicle signal related to the depression of the clutch pedal of the vehicle” The steering angle sensor 309 detects the “vehicle signal relating to the change in the steering angle” detected by the sensor 308.

  In addition, the detection unit 10 includes one or more vehicle signals related to wearing of a seat belt in the driver's seat of the vehicle, vehicle signals related to seating of the driver's seat of the vehicle, and other signals input according to the presence of the driver. A vehicle signal is detected.

  The “vehicle signal related to the seat belt installation of the driver seat of the vehicle” is detected by the seat belt sensor 310, and the “vehicle signal related to the seating of the driver seat of the vehicle” is detected by the driver seat seat sensor 311.

  The configuration of each vehicle sensor 300 used in the present embodiment is not particularly limited, and a known one can be used.

  Next, the selection unit 20 will be described.

  The selection unit 20 of the present embodiment has priority order information 21 prepared in advance. The priority information 21 is information in which the priority for wireless connection with the hands-free system 100 is defined for each mobile phone n. Specifically, as shown in FIG. 2, “cell phone n identifier” and “portable terminal name” are associated with “priority for wireless connection with the hands-free system 100”. . The priority order information 21 may be generated by the user inputting information via the touch panel 42. Although not particularly limited, the priority information 21 may be automatically defined by a method of counting the number of times of connection in the past for each of the mobile phones 1 to n and setting the priority higher as the number of connections increases. . Further, the priority order information 21 may be automatically defined by a method of setting a higher priority order for the mobile phone n connected recently.

  When the detection unit 10 detects a vehicle signal, the selection unit 20 selects a mobile terminal with the highest priority among the mobile phones 1 to n brought into the vehicle. The selection unit 20 determines the timing at which driving of the vehicle is started based on the vehicle signal, that is, the timing at which the driver gets into the vehicle, and the highest priority among the plurality of mobile phones 1 to n that can communicate at that time. A high portable terminal n is selected.

  Thereby, even if a person other than the driver gets into the vehicle before the driver, the portable terminal used by the driver can be preferentially selected.

  Next, the connection unit 30 will be described.

  The connection unit 30 executes a wireless connection process with the cellular phones 1 to n selected by the selection unit 20.

  The connection unit 30 executes a wireless communication connection between the hands-free system 100 and the mobile phone n according to the Bluetooth (registered trademark) standard. The connection unit 30 can use a normal wireless communication connection method used in a Bluetooth standard communication device. The connection unit 30 includes the antenna 31 for wireless communication and a connection processing unit 32 that performs Bluetooth communication. The connection processing unit 32 includes a portion that performs processing of a lower layer layer of Bluetooth, a portion that defines a protocol for performing communication, and a portion that performs processing of an upper layer layer of Bluetooth. The connection processing unit 32 reads information on the mobile phone n received from the antenna 31 via hardware including a CPU, and transmits a command signal to the mobile phone n via the antenna 31.

  In this example, wireless connection processing according to the Bluetooth standard will be described, but a wireless communication method based on other standards such as UWB (Ultra Wide Band) and DSRC (Dedicated Short Range Communication) may be used.

  Next, the control procedure of the hands-free system 100 of this embodiment will be described.

  In step S101, the detection unit 10 detects a predetermined vehicle signal. This process is repeated until a vehicle signal can be detected (No routine in S101). This is because the driving of the vehicle is started, that is, the timing at which the driver gets on the vehicle is detected. This vehicle signal is a signal that is input to the vehicle side when the vehicle operation is started, which is detected by each of the in-vehicle sensors 301 to 311. In this step, when a predetermined vehicle signal is detected, the process proceeds to step S102 (S101). The detection unit 10 sends a signal indicating that a predetermined vehicle signal has been detected to the selection unit 20.

  Subsequently, in step S102, the selection unit 20 refers to the priority order information prepared in advance using a detection of a predetermined vehicle signal as a trigger (S102).

  In step S103, the priority information referred in S102 is referred to, and the mobile phone n having the highest priority is selected from the connectable mobile phones 1 to n (S103). That is, the mobile phone n having the highest priority is selected after a predetermined vehicle signal is detected.

  The selection unit 20 acquires identifiers (device addresses) of the connectable mobile phones 1 to n from the connection unit 30. A method (inquiry method) for searching for the mobile phones 1 to n in which the hands-free system 100 serving as a master (parent device) serves as a slave (child device) (connectable) is not particularly limited. In this example, since the Bluetooth device is used, the mobile phones 1 to n are searched by the following method. First, the connection unit 30 of the hands-free system 100 serving as a master (master device) continuously transmits IQ (Inquiry) packets (inquiry processing). On the other hand, the mobile phones 1 to n as slaves (slave devices) prepare to receive IQ (Inquiry) packets. When the mobile phones 1 to n receive the IQ (Inquiry) packet, the mobile phone n that has received the IQ packet shifts to a response operation, and the FHS (Frequency Hopping Synchronization) packet including the mobile phone's own Bluetooth address, clock, etc. Is transmitted (inquiry response processing). The connection unit 30 of the hands-free system 100 searches for one or two or more mobile phones n that can be connected (communicable) using the received FHS (Frequency Hopping Synchronization) packet.

  Thereafter, in step S104, the connection unit 30 wirelessly connects the mobile phone n selected in S103 and the hands-free system 100. A method (connection method) in which the hands-free system 100 serving as a master (parent device) is connected to the selected mobile phone n serving as a slave (child device) (connectable) is not particularly limited. In this example, since a Bluetooth device is used, connection with the mobile phone n is established by the following method. The connection unit 30 of the hands-free system 100 serving as a master (parent device) transmits an ID (Identification) packet generated based on the Bluetooth address of the mobile phone n to the selected mobile phone n. When the mobile phones 1 to n receive ID (Identification), ID (Identification) as a response signal is returned. The connection unit 30 of the hands-free system 100 transmits an FHS (Frequency Hopping Synchronization) packet to the mobile phone n. When the mobile phone n receives an FHS (Frequency Hopping Synchronization) packet, it returns an ID (Identification). In this way, the wireless connection between the selected mobile phone n and the hands-free system 100 is established.

  Since the hands-free system 100 of the first embodiment is configured and functions as described above, the following effects can be obtained.

  According to the hands-free system 100 of the present embodiment, since the mobile terminal (mobile phone n) used by the driver can be recognized regardless of the state of boarding, the mobile terminal (mobile phone n) of the driver is used. It is possible to preferentially connect to the in-vehicle hands-free system 100.

  That is, according to the hands-free system 100 of the present embodiment, a mobile signal (mobile phone n) to be connected is selected after a vehicle signal input to the vehicle side is detected when driving of the vehicle is started. Even if another occupant gets into the vehicle before the driver, the mobile terminal (mobile phone n) used by the driver is always a candidate for selection, so the driver's mobile phone with high priority A terminal (cell phone n) can be connected to an in-vehicle hands-free device. That is, it is possible to prevent the occurrence of a situation in which a mobile terminal of another passenger who gets into the vehicle before the driver is connected to the hands-free system 100 and then the connection must be switched to the mobile terminal of the driver again. can do.

  Also, in order to automatically determine that the driver has boarded the vehicle based on a vehicle signal input to the vehicle side when the vehicle starts to drive, a special operation is required from the driver and other occupants. The above effects can be obtained without any problem.

  In addition, as a vehicle signal, by adopting a signal input according to a change in the state of the vehicle, a signal input by the driver, or a signal input according to the presence of the driver, a change in the vehicle itself, It is possible to determine that the driver has boarded the vehicle from various viewpoints such as the behavior of the driver and the presence of the driver.

  Furthermore, as a vehicle signal, a vehicle signal related to vehicle speed, a vehicle signal related to travel distance, and other signals input in response to changes in the state of the vehicle, a vehicle signal related to the release of the parking range of the vehicle, and a drive range of the vehicle are set. Vehicle signal related to release of vehicle parking brake, vehicle signal related to change of vehicle side mirror position, vehicle signal related to depression of vehicle brake pedal, vehicle signal related to depression of accelerator pedal of vehicle, vehicle The vehicle signal related to the depression of the clutch pedal, the vehicle signal related to the change of the steering angle or other signals input by the driver, the vehicle signal related to the seat belt installation of the driver seat of the vehicle, or the vehicle driver seat One or more of these vehicle signals can be combined using a vehicle signal related to seating or other signals input depending on the presence of the driver. By combining the timing of operation of the vehicle is started, i.e. it is possible occupant to accurately determine the timing board the vehicle.

  Accordingly, the driver's mobile terminal (mobile phone n) can be preferentially connected to the in-vehicle hands-free system 100 regardless of the state of boarding.

  Further, the wireless connection method between the hands-free system 100 and the portable terminal n used by the hands-free system 100 of the first embodiment has the same operations and effects as the hands-free system 100 ′ of the first embodiment described above. .

<Second Embodiment>
Hereinafter, the hands-free system 100 ′ of the second embodiment will be described based on the drawings. The basic configuration of the hands-free system 100 ′ of this embodiment is basically the same as that of the hands-free system 100 of the first embodiment. Here, in order to avoid redundant description, different points will be mainly described.

  FIG. 4 is a functional block diagram of the hands-free system 100 ′ of the second embodiment. As shown in FIG. 4, the configuration of the hands-free system 100 ′ is basically the same as that of the hands-free system 100 of the first embodiment shown in FIG. 1, and the selection unit 20 of the second embodiment replaces the reselection unit 22. And the connection part 30 has a disconnection state detection part 33.

  The hands-free system 100 ′ of the present embodiment will be described focusing on this point.

  When the reselection unit 22 of the selection unit 20 of the present embodiment detects the disconnection of the wireless connection between the selected mobile phone n and the hands-free system 100 ′, when the vehicle signal is detected after the disconnection of the wireless connection The priority order information 21 is referred to, and the mobile phone n having the highest priority is selected from the connectable mobile phones 1 to n.

  The reselection unit 22 acquires information indicating that the wireless connection between the mobile phone n and the hands-free system 100 ′ has been disconnected from the disconnection state detection unit 33 of the connection unit 30. When the disconnection state detection unit 33 acquires a wireless connection disconnection command, or when a state in which a signal from the mobile phone n cannot be received for a predetermined time or more for some reason, the mobile phone n and the hands-free system 100 ′ It is determined that the wireless connection with is disconnected.

  Note that the method of selecting the mobile phone n having the highest priority among the connectable mobile phones 1 to n is the same as that of the first embodiment, and the priority information 21 is also that of the first embodiment. It is the same.

  FIG. 5 is a flowchart for explaining a control procedure of the hands-free system 100 ′ of the present embodiment.

  As shown in FIG. 5, steps S101 to S104 are processes common to steps S101 to S104 in the first embodiment described in FIG.

  In the present embodiment, steps S201 to S205 are performed after steps S101 to S104.

  In step S201, when the reselection unit 22 recognizes the disconnection of the wireless connection, the processing of steps S201 to S205 is started (S202). When the disconnection state detection unit 33 of the connection unit 30 detects that the wireless connection between the mobile phone n and the hands-free system 100 ′ is disconnected, the disconnection state detection unit 33 notifies the reselection unit 22 of the selection unit 20 to that effect.

  In step S202, the reselection unit 22 executes the processing after step S203 when a predetermined vehicle signal (such as a vehicle signal related to the vehicle speed) is detected by the detection unit 10 after the wireless connection is disconnected. S202).

  In step S203, the reselection unit 22 refers to the priority order information 21 (S203). The priority order information 21 is common to the priority order information 21 (see FIG. 2) in the first embodiment.

  In step S204, the reselection unit 22 refers to the priority information 21 and selects the mobile phone n having the highest priority (S204). As described above, even after the wireless connection is broken, a predetermined vehicle signal is detected, that is, by checking that the driver exists in the passenger compartment and then selecting the mobile phone n, the highest priority is obtained. The mobile phone with the highest priority can be selected from the mobile terminals including the mobile phone of the driver with a high level.

  Subsequently, in step S205, the connection processing unit 32 reestablishes a wireless connection between the mobile phone n and the hands-free system 100 ′ (S205).

  Subsequently, another aspect of the processing of the second embodiment will be described. The configuration of the hands-free system 100 ′ of another aspect described here is the same as that of the second embodiment shown in FIG. 4.

  In this aspect, the reselection unit 22 of the selection unit 20 of the present embodiment is configured so that the priority order information is obtained when the mobile phone n that is wirelessly connected before the disconnection state detection unit 33 detects disconnection cannot communicate. 21, the mobile phone n having the highest priority is selected from the connectable mobile phones 1 to n.

  The reason for the disconnection of the wireless connection is that the owner (for example, the driver) of the mobile phone n that was wirelessly connected immediately before gets off the vehicle and cannot communicate with the mobile phone n, or the wireless connection immediately before There may be a case where communication with the mobile phone n is temporarily disabled due to a malfunction of the mobile phone n.

  In this embodiment, after the disconnection of the wireless connection between the mobile phone n and the hands-free system 100 ′ is detected, the possibility of the wireless connection with the mobile phone n is confirmed again, and the connection is impossible. Determines that the wireless disconnection is not temporary, but is persistent, such as when the owner of the mobile phone n (for example, the driver) gets off, and again detects the mobile phone n with the highest priority at present. To do.

  FIG. 6 is a flowchart for explaining another example of the control procedure of the hands-free system 100 ′ shown in FIG.

  As shown in FIG. 6, steps S101 to S104 are processes common to steps S101 to S104 in the first embodiment described in FIG. 3, and steps S201 to S205 are in the second embodiment described in FIG. This process is common to steps S201 to S205.

  In the process illustrated in FIG. 6, after the disconnection state detection unit 33 detects disconnection of the wireless connection in Step 201, Steps S <b> 210 and S <b> 220 are executed. In step S210, the disconnection state detection unit 33 detects whether or not it can be connected to the mobile phone that is wirelessly connected immediately before.

  A method (connection method) in which the hands-free system 100 serving as a master (parent device) attempts to connect to a mobile phone n serving as a slave (slave device) that has been connected immediately before (connectable) is not particularly limited. In this example, since a Bluetooth device is used, connection establishment with the mobile phone n is attempted by the following method. The connection unit 30 of the hands-free system 100 serving as a master (parent device) transmits an ID (Identification) packet generated based on the Bluetooth address of the mobile phone n that is wirelessly connected immediately before. If the mobile phone n can receive ID (Identification), it returns ID (Identification) as a response signal. Thereafter, the connection unit 30 of the hands-free system 100 transmits an FHS (Frequency Hopping Synchronization) packet to the mobile phone n. When the mobile phone n receives an FHS (Frequency Hopping Synchronization) packet, it returns an ID (Identification).

  In step S210, the disconnection state detection unit 33 determines that connection with the mobile phone that is wirelessly connected immediately before is possible if such a packet can be transmitted and received (No in S210), and wireless connection is established immediately before. The mobile phone is reconnected to the mobile phone (S220).

  On the other hand, in step S210, the disconnection state detection unit 33 determines that connection with a mobile phone that is wirelessly connected immediately before is impossible if such a packet cannot be transmitted and received (Yes in S210), The processes after step S202 are executed (S202 to S205). That is, after a predetermined vehicle signal defined in advance is detected (S202), the priority order information 21 is referred to (S203), the mobile phone n having the highest priority is selected at present (S204), and the mobile A wireless connection between the telephone n and the freehand system is executed (S205).

  Since the hands-free system 100 ′ of the second embodiment is configured and functions as described above, the following effects can be obtained.

  The hands-free system 100 ′ of the first embodiment operates in the same manner as the first embodiment and has the same effects.

  Furthermore, according to the hands-free system 100 ′ of the second embodiment, when the wireless connection is interrupted for some reason while the vehicle is traveling (for example, when the battery of the mobile phone n runs out), the driver Even when the vehicle gets off and another driver drives, the mobile phone n of the person with the highest priority at present and the hands-free system 100 'can be automatically connected.

  In addition, when the wireless connection is interrupted for some reason while the vehicle is running, it is confirmed that the mobile terminal n that has been wirelessly connected before the disconnection cannot communicate. If the connection is temporarily interrupted, such as when it is disconnected, it can be wirelessly connected to the same mobile phone again, and the connection is disconnected continuously, such as when the driver gets off and another driver drives. In this case, the cellular phone n of the person with the next highest priority can be connected to the hands-free system 100 ′.

  Thereby, the mobile phone n with the highest priority can be automatically connected to the hands-free system 100 ′ regardless of the state of boarding.

  In addition, the wireless connection method between the hands-free system 100 ′ and the mobile terminal n used by the hands-free system 100 ′ of the second embodiment is the same as that of the hands-free system 100 ′ of the second embodiment described above. Play.

  The embodiment described above is described for facilitating the understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

  That is, in the present specification, as an example of the hands-free device according to the present invention, a hands-free system 100 constituting a part of the in-vehicle device 1000 will be described as an example. However, the present invention is not limited to this. Absent.

  Further, in the present specification, as one aspect of the hands-free device, a hands-free device including a detection unit 10 as an example of a detection unit, a selection unit 20 as an example of a selection unit, and a connection unit 30 as an example of a connection unit. Although the system 100 will be described, it is not so limited.

  Further, in this specification, the selection unit 20 that stores therein the predefined priority information 21 as an example of a selection unit that refers to the priority will be described, but the present invention is not limited to this.

  Furthermore, in this specification, as another aspect of the hands-free device, the detection unit 10 as an example of the detection unit, the selection unit 20 including the reselection unit 22 as an example of the selection unit, and the connection unit as an example Although the hands-free system 100 provided with the connection part 30 provided with the disconnection state detection part 33 is demonstrated, it is not limited to this.

  As an example of the vehicle signal, a vehicle signal related to the vehicle speed detected by the vehicle speed sensor 301, a vehicle signal related to the travel distance detected by the travel distance sensor 302, and a vehicle related to the release of the parking range of the vehicle detected by the range position sensor 303. Signal, a vehicle signal related to the release of the parking brake of the vehicle detected by the parking brake sensor 304, a vehicle signal related to a change in the side mirror position of the vehicle detected by the side mirror position sensor 305, and a brake pedal of the vehicle detected by the brake sensor 306 The vehicle signal related to the depression of the vehicle, the vehicle signal related to the depression of the accelerator pedal of the vehicle detected by the accelerator opening sensor 307, the vehicle signal related to the depression of the clutch pedal of the vehicle detected by the clutch sensor 308, and the steering angle sensor 309 Vehicle signals related to changes in steering angle, The vehicle signal related to the seat belt installation of the driver seat of the vehicle detected by the belt sensor 310 and the vehicle signal related to the seat of the driver seat detected by the driver seat sitting sensor 311 have been described. However, the present invention is not limited to this. .

  Moreover, although this specification demonstrated the example using the mobile phones 1-n as an example of a portable terminal, it is not limited to this.

It is a functional block diagram of hands free system 100 of a 1st embodiment. It is a figure which shows an example of priority information. It is a flowchart figure for demonstrating the control procedure of the hands-free system 100 of 1st Embodiment. It is a functional block diagram of hands free system 100 'of a 2nd embodiment. It is a flowchart figure for demonstrating the control procedure of hands-free system 100 'of 2nd Embodiment. It is a flowchart figure for demonstrating the other example of the control procedure of hands-free system 100 'of 2nd Embodiment shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1000 ... In-vehicle apparatus 1-n ... Mobile phone, portable terminal 100 ... Hands free system 10 ... Detection part 20 ... Selection part 21 ... Priority information 30 ... Connection part 31 ... Antenna 32 ... Connection processing part 33 ... Disconnection state detection part 200 ... Vehicle controller 300, 301 to 311 ... In-vehicle sensor

Claims (8)

A hands-free device mounted on a vehicle and wirelessly connected to one mobile terminal,
Detecting means for detecting a vehicle signal input to the vehicle side when driving of the vehicle is started;
When a vehicle signal is detected by the detection means, the priority of the mobile terminal that can be connected is determined by referring to a priority that associates the identifier of the mobile terminal prepared in advance with the priority for wireless connection with the hands-free device. A selection means for selecting the mobile device with the highest priority,
A hands-free device having connection means for executing wireless connection processing with the portable terminal selected by the selection means. The hands-free device according to claim 1,
When the selection means detects disconnection of the wireless connection with the selected mobile terminal, the connectable mobile terminal refers to the priority order when the vehicle signal is detected after the disconnection of the wireless connection. Hands-free device that selects the mobile terminal with the highest priority. The hands-free device according to claim 2,
The selection unit further refers to the priority order when the mobile terminal that is wirelessly connected before the disconnection cannot communicate, and selects the mobile terminal with the highest priority among the connectable mobile terminals. Hands-free device. The hands-free device according to any one of claims 1 to 3,
The vehicle signal is a hands-free device including one or more signals input in response to a vehicle signal related to vehicle speed, a vehicle signal related to travel distance, and other vehicle state changes. The hands-free device according to any one of claims 1 to 4,
The vehicle signal is a vehicle signal related to the release of the parking range of the vehicle, a vehicle signal related to the setting of the drive range of the vehicle, a vehicle signal related to the release of the parking brake of the vehicle, a vehicle signal related to the change of the side mirror position of the vehicle, Vehicle signal related to depression of vehicle brake pedal, vehicle signal related to depression of vehicle accelerator pedal, vehicle signal related to depression of vehicle clutch pedal, vehicle signal related to change in steering angle, and other signals input by driver Hands-free device containing one or more. The hands-free device according to any one of claims 1 to 5,
The vehicle signal includes one or more of a vehicle signal related to wearing of a seat belt in a driver's seat of a vehicle, a vehicle signal related to seating of a driver's seat of a vehicle, and other signals input in response to the presence of a driver. apparatus. Detects a vehicle signal input to the vehicle when the vehicle starts driving,
When the vehicle signal is detected, reference is made to a priority order that associates an identifier of a portable terminal prepared in advance with a priority for wireless connection with the hands-free device, and the priority among portable terminals that can be connected. Select the mobile device with the highest
A wireless connection method between a hands-free device and a portable terminal that executes wireless connection processing with the selected portable terminal. A wireless connection method between the hands-free device according to claim 7 and a portable terminal,
In the selection process of the portable terminal, when the disconnection of the wireless connection with the selected portable terminal is detected, when the vehicle signal is detected after the disconnection of the wireless connection, the priority order is referred to, A wireless connection method between a portable terminal and a hands-free device that selects a portable terminal with the highest priority among portable terminals brought into the network.

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