JP2009232073A - Vehicle hand-free device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handsfree device with consideration of safety so as not to disturb a driver's concentration for driving. <P>SOLUTION: The handsfree device has a handsfree unit 2 which performs wireless communications with a cellular phone 1, a speaker 3 which outputs voice received by the cellular phone 1 through the handsfree unit 2, and a microphone 4 which inputs voice to be transmitted to the cellular phone 1 through the handsfree unit 2. In addition, the handsfree device also has a running state detection means 5 for detecting the running state of a vehicle, and a control unit 6 which restricts communication through the handsfree unit 2 with a communication partner of the cellular phone 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hands-free device for a vehicle, and more particularly to a hands-free device for a vehicle that restricts a call according to a traveling state of the vehicle.

  In recent years, hands-free devices using the Bluetooth (registered trademark) standard have been put into practical use. If the hands-free device is used, it is possible to make a call with the other party who has arrived at the mobile phone without having to hold the mobile phone while driving the vehicle.

  An example of such a hands-free device is disclosed in Patent Document 1 below. In the hands-free device described in Patent Literature 1, a defect correction process depending on the model of the mobile phone is performed.

JP 2007-74409 A

  By the way, when the driver should concentrate by driving such as traveling on a winding road, even if the call uses a hands-free device, the driver may concentrate on driving.

  Accordingly, an object of the present invention is to provide a hands-free device in which safety is taken into consideration so as not to hinder driver concentration.

  In order to achieve the above object, a hands-free device of the present invention includes a hands-free unit that performs wireless communication with a mobile phone, and an audio output unit that outputs audio received from the mobile phone via the hands-free unit; Voice input means for inputting voice to be transmitted to the mobile phone via the hands-free unit, a hands-free device comprising: a running state detecting means for detecting a running state of the vehicle; and the running state detecting means Call restriction means for restricting a call through the hands-free unit with a call partner that has arrived at the mobile phone when the vehicle running state detected by the mobile phone corresponds to a predetermined call inadequate state. It is characterized by that.

  As described above, according to the hands-free device of the present invention, when the driver should concentrate by driving such as traveling on the winding road, the call using the hands-free device is restricted. Thereby, a hands-free device in consideration of safety can be provided so as not to disturb the driver's concentration of driving.

In the present invention, it is preferable that the call restriction unit blocks an incoming call when performing the call restriction.
Thereby, it is possible to prevent the concentration of driving from being disturbed by a call.

In the present invention, it is preferable that the call restriction unit notifies the other party of the incoming call by a voice message that the call cannot be made when the call is restricted.
As a result, it is possible to give consideration to the called party while giving consideration to safety so as not to disturb the driver's concentration of driving.

In the present invention, it is preferable that the traveling state detection unit includes a steering angle detection unit that detects a steering angle of the steering of the vehicle, and the unsuitable call state is a change in the steering angle detected by the steering angle detection unit. This includes a state where the amount is equal to or greater than a predetermined rudder angle change amount.
As a result, it is possible to prevent the driver from concentrating on a winding road having continuous curves.

In the present invention, it is preferable that the traveling state detection unit includes a navigation unit having map data, and the unsuitable call state is a state in which a curvature of a traveling path obtained from the map data is a curve having a predetermined curvature or more. including.
Thereby, it is possible to prevent the driver from concentrating on a sharp curve or the like.

In the present invention, it is preferable that the call restriction unit obtains a duration of an unsuitable call from the map data, and informs the other party of the incoming call of a call possible time obtained by adding the duration to the current time. Notify by message.
As a result, the other party can make another call to the mobile phone after the passable time.

In the present invention, it is preferable that the unsuitable call state includes a state in which a vehicle safe driving support device is operating.
Thereby, it is possible to prevent the driver from concentrating on driving when avoiding a collision or deviating from the traveling lane.

In the present invention, it is preferable that the call restriction unit stops the call restriction and stops incoming calls when the vehicle is not suitable after the call restriction. Inform.
As a result, the driver can know that there was an incoming call during call restriction.

  Hereinafter, an embodiment of a hands-free device for a vehicle according to the present invention will be described with reference to the accompanying drawings. First, the configuration of the hands-free device for a vehicle according to the first embodiment will be described with reference to the block diagram of FIG.

  As shown in FIG. 1, the hands-free device according to the present embodiment includes a hands-free unit 2 that performs wireless communication with a mobile phone 1, and an audio output that outputs audio received from the mobile phone 1 via the hands-free unit 2. A hands-free device having a speaker 3 as means and a microphone 4 as voice input means for inputting voice to be transmitted to the mobile phone 1 via the hands-free unit 2, and for detecting the running state of the vehicle When the traveling state of the vehicle detected by the state detection unit 5 and the traveling state detection unit 5 corresponds to a predetermined call inadequate state, a call via the hands-free unit 2 with the call partner that has arrived at the mobile phone 1 is performed. And a control unit 6 as a call restriction means for restricting the call.

  Furthermore, in this embodiment, an amplifier 31 that amplifies a signal output to the speaker 3 and a display 7 are provided. The traveling state detection means 5 includes a throttle sensor 51, a navigation unit 52 having map data, a steering angle sensor 53 that detects the steering angle of the vehicle, a vehicle speed sensor 54, and a road-vehicle communication unit 55.

Next, the operation of the hands-free device of the first embodiment will be described with reference to FIG.
In the first embodiment, when an incoming call is received by the mobile phone (“Yes” in S21), when the vehicle running state corresponds to a predetermined call inadequate state, the handset with the call partner that has received the mobile phone 1 Call restriction is performed by blocking calls through the free unit 2 (S25).

  In the present embodiment, as an unsuitable call state, the vehicle speed of the vehicle is greater than or equal to a predetermined threshold (S22), the amount of change in the steering angle of the vehicle is greater than or equal to a predetermined threshold (S23), and the travel path of the vehicle is A curved road (S24) is set. The vehicle speed is obtained as a detection value of the vehicle speed sensor 54. Any suitable value can be set as the threshold of the vehicle speed. The rudder angle change amount is obtained as the rudder angle change amount detected by the rudder angle sensor 53 per unit time. The threshold value of the steering angle change amount can also be set to any suitable value. In addition, a traveling road is determined to be a curved road when the curvature of the traveling road obtained from the map data is a curve that is equal to or greater than a predetermined threshold (the turning radius R is small). The curvature threshold can be set to any suitable value.

  Next, after the call is restricted, when the driving state of the vehicle is no longer in an unsuitable state, the call restriction is stopped and the incoming sound is activated to notify the incoming call (S28). Here, when the change amount of the steering angle becomes less than the predetermined threshold (S26), or when the travel path is no longer a curved path (S27), it is determined that the call is not suitable.

  If the call is not unsuitable, normal incoming call control is performed (S29, S30). In normal incoming call control, it is possible to make a call via the hands-free unit 2 with a call partner that has arrived at the mobile phone 1. The voice of the other party is output from the speaker 3 via the hands-free unit 2. The driver's voice is input from the microphone 4 and transmitted to the mobile phone 1 via the hands-free unit 2.

  In this way, when using the hands-free device, since the call restriction is selectively performed when the driving state of the vehicle is an unsuitable call state, safety considerations can be taken so as not to disturb the driver's concentration of driving. it can.

Next, the operation of the hands-free device of the second embodiment will be described with reference to FIG.
In the present embodiment, when an incoming call is received from the mobile phone (“Yes” in S31), the mobile phone 1 is received by the so-called manner mode setting when the vehicle running state corresponds to a predetermined call inadequate state. Call restriction of the call through the hands-free unit 2 with the call partner is performed (S35).

  In the manner mode setting, a voice message is sent to the other party on the incoming call to the mobile phone 1 to the effect that the call is not possible. Further, the message of the other party may be recorded.

  Also in the present embodiment, in the same manner as in the first embodiment described above, the vehicle speed of the vehicle is equal to or greater than a predetermined threshold (S32), and the amount of change in the steering angle is equal to or greater than the predetermined threshold, (S33) and that the traveling path of the vehicle is a curved path (S34).

  Next, after the call is restricted, when the driving state of the vehicle is no longer unsuitable, the call restriction is stopped and an incoming call during the call restriction is notified (S38). Here, when the change amount of the steering angle becomes less than the predetermined threshold (S36), or when the travel path is no longer a curved path (S37), it is determined that the call is not suitable. If the call is not unsuitable, normal incoming call control is performed (S39).

Next, the operation of the hands-free device of the third embodiment will be described with reference to FIG.
In the present embodiment, when the mobile phone receives an incoming call (“Yes” in S41), when the vehicle running state corresponds to a predetermined call inadequate state, a so-called manner mode is set and the call resumption time is set. By notifying the other party, the call restriction of the call through the hands-free unit 2 with the other party who has arrived at the mobile phone 1 is performed (S46).

  Also in the present embodiment, as in the first embodiment described above, the vehicle speed of the vehicle is equal to or greater than a predetermined threshold (S42), and the amount of change in the steering angle is equal to or greater than the predetermined threshold, as a call inadequate state. (S43) and that the traveling path of the vehicle is a curved path (S44).

  In the case of the unsuitable call state, in this embodiment, the duration of the unsuitable call state is obtained from the map data of the car navigation unit 52 (S45). For example, the travel distance of the winding road section is obtained from the map data, the section is divided by the vehicle speed, and the time required to pass through the section may be obtained as the duration of the unsuitable call state.

In the manner mode setting, a voice message is sent to the other party on the incoming call to the mobile phone 1 to the effect that the call is not possible. Further, the message of the other party may be recorded.
Furthermore, in the present embodiment, the callable time obtained by adding the duration to the current time is notified to the other party of the incoming call by a voice message (S46). As a result, the called party can make a call again after the unsuitable state is resolved.

  Next, after the call is restricted, when the driving state of the vehicle is no longer unsuitable, the call restriction is stopped and an incoming call during call restriction is notified (S49). Here, when the amount of change in the steering angle is less than the predetermined threshold (S47), or when the travel path is no longer a curved path (S48), it is determined that the call is not suitable. If the call is not unsuitable, normal incoming call control is performed (S50).

Next, the operation of the hands-free device of the fourth embodiment will be described with reference to FIG.
In the present embodiment, when an incoming call is received from the mobile phone (“Yes” in S51), when the vehicle running state corresponds to a predetermined call inadequate state, hands-free with the other party who has received the call to the mobile phone 1 is possible. Call restriction is performed by blocking the call through the unit 2 (S53).

  In the present embodiment, it is determined that the state in which the safe driving support device for the vehicle is operating is an unsuitable call state (S52). The operating state of the safe driving support device refers to, for example, a state where the automatic brake of the collision prevention device is operating, or a state where the automatic steering or voice guide of the lane departure prevention device is operating. In addition, it includes a state where the driver is operating the steering wheel to avoid a collision under the collision warning and a state where the driver is operating the steering wheel so as not to leave the lane under the lane departure warning. . In addition, for example, a sensor installed on the road or on the side of the road detects a road obstacle or a jump from the side road, and the detection result is acquired via the road-to-vehicle communication unit 55 by road-to-vehicle communication. It also includes the case where it operates.

  Next, after the call restriction is performed, when the safe driving support device is not in an activated state (“Yes” in S54), the call restriction is stopped, and the incoming sound is activated to notify the incoming call (S55). When the call is not unsuitable, normal incoming call control is performed (S56, S57). In normal incoming call control, it is possible to make a call via the hands-free unit 2 with a call partner that has arrived at the mobile phone 1.

  In each embodiment mentioned above, although the example which constituted the present invention on specific conditions was explained, the present invention can perform various change and combination, and is not limited to this. For example, in the above-described embodiment, an example in which a specific condition is set as a call inappropriate state has been described. However, the call inappropriate state is not limited to this, and in the present invention, any suitable state is set as a call inappropriate state. Can be set. For example, the running state may be determined based on the opening / closing change amount of the throttle detected by the throttle sensor 51.

It is a block which shows the structure of the hands-free apparatus of embodiment of this invention. It is a flowchart which shows operation | movement of the hands-free apparatus of 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the hands-free apparatus of 2nd Embodiment of this invention. It is a flowchart which shows operation | movement of the hands-free apparatus of 3rd Embodiment of this invention. It is a flowchart which shows operation | movement of the hands-free apparatus of 4th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Hands-free unit 3 Speaker 4 Microphone 5 Running state detection means 6 Control unit 7 Display 31 Amplifier 51 Throttle sensor 52 Navigation unit 53 Steering angle sensor 54 Vehicle speed sensor 55 Road-to-vehicle communication unit

Claims (8)

A hands-free unit for wireless communication with a mobile phone;
Audio output means for outputting audio received from the mobile phone via the hands-free unit;
A hands-free device comprising: voice input means for inputting voice to be transmitted to the mobile phone via the hands-free unit;
Traveling state detecting means for detecting the traveling state of the vehicle;
Call restriction for restricting calls through the hands-free unit with a call partner that has arrived at the mobile phone when the running state of the vehicle detected by the running state detection means corresponds to a predetermined call inadequate state Means,
A hands-free device for a vehicle, comprising: The call restriction means prevents an incoming call when performing the call restriction.
The vehicle hands-free device according to claim 1. The call restriction means notifies the other party of the incoming call with a voice message that the call is not possible when performing the call restriction at the time of an incoming call.
The vehicle hands-free device according to claim 1, wherein the device is a hands-free device. The traveling state detection means includes a steering angle detection means for detecting a steering angle of the steering of the vehicle,
The call inadequate state includes a state in which the amount of change in the steering angle detected by the steering angle detection means is equal to or greater than a predetermined amount of change in the steering angle.
The vehicle hands-free device according to any one of claims 1 to 3. The running state detecting means includes a navigation unit having map data,
The call inadequate state includes a state in which a curvature of a traveling path obtained from the map data is a curve having a predetermined curvature or more.
The vehicle hands-free device according to any one of claims 1 to 4, wherein: The call restriction means obtains a duration of a call inappropriate state from the map data,
Notifying the other party of the incoming call with a voice message the callable time obtained by adding the duration to the current time,
The vehicle hands-free device according to claim 5. The call inadequate state includes a state where a vehicle safe driving support device is operating,
The hands-free device according to any one of claims 1 to 6, wherein: The call restriction means stops the call restriction and notifies the incoming call during the call restriction when the running state of the vehicle is not suitable for the call after the call restriction.
The hands-free device according to any one of claims 1 to 7, wherein the device is a hands-free device.

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