JP3711786B2 - Hands-free system for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hand-free system for a vehicle in which a microphone different from a microphone included in a telephone is arranged in a vehicle interior and a call is made using the microphone.
[0002]
[Prior art]
A conventional vehicle hands-free system stores a mobile phone in a telephone holder and is connected to an external microphone, an external speaker, and an information service device. In general, the external microphone is often attached to the driver side A-pillar or the vicinity thereof in order to collect the sound from the driver most easily when the driver is driving.
[0003]
In addition, the information service device has a display unit for displaying service contents, and this display unit is usually used together with the display unit of the navigation device, and is installed near the center console, for example. There are many.
[0004]
During communication with the information service center, the user speaks to the external microphone, hears the operator's voice from the external speaker, and displays a character or the like peculiar to the information service.
[0005]
[Problems to be solved by the invention]
However, when the information service device is used when the vehicle is stopped, the operator talks with the operator while viewing the characters displayed on the display unit installed near the center console.
[0006]
At this time, since the direction of the driver's seat side A pillar where the external microphone is installed is different from the direction of the talking display (center console), the voice from the driver is collected using the external microphone. There was a problem that it was impossible to receive information services comfortably.
[0007]
Further, in a vehicle having a large vehicle interior and a relatively long distance from the rear seat to the driver side A-pillar, a rear seat display unit may be provided. In such a vehicle, the passenger sitting in the rear seat speaks toward the character displayed on the display unit for the rear seat. At this time, there is a problem in that the voice of the passenger sitting in the rear seat cannot be collected using the external microphone arranged in the driver side A pillar.
[0008]
The present invention has been made in view of the above, and an object thereof is to provide a vehicular hand-free system that can easily collect voice according to the driving state of the driver and can receive a comfortable information service. There is to do.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 receives a telephone set for making a telephone call outside the vehicle via a communication line and information from the information center outside the vehicle via the telephone set and displays the information on the display. An information service device, a first microphone arranged near the driver's seat side pillar, a second microphone arranged near the display of the information service device, and travel detection for detecting whether or not the vehicle is traveling And a switching means for connecting the first microphone to the telephone when the vehicle is running, and connecting the second microphone to the telephone when the vehicle is not running. .
[0010]
In order to solve the above-mentioned problem, the travel detection means uses any one of a side brake operation signal, a shift position signal, a brake pedal operation signal, a steering holding signal, and a vehicle speed signal. The gist is to detect whether or not the vehicle is running.
[0011]
In order to solve the above-mentioned problem, the invention according to claim 3 includes a plurality of the information service devices, and arranges the respective displays at different positions, and arranges the second microphones near the respective displays, A connection detection means for detecting from which information service device the information center is connected, and a microphone arranged in the vicinity of the display of the information service device connected to the information center when switching to the second microphone by the switching means Is connected to the telephone.
[0012]
According to a fourth aspect of the present invention, in order to solve the above-mentioned problem, a speaker used in a pair is disposed in each of the microphones, and the switching means is a speaker paired with the microphone connected to the telephone. Is switched to connect to the telephone.
[0013]
【The invention's effect】
According to the first aspect of the present invention, when the vehicle is traveling, the first microphone disposed near the driver side pillar is connected to the telephone, while when the vehicle is not traveling, the information service device By connecting a second microphone placed near the display to the telephone, the microphone attached near the driver's side pillar can be used while the driver should concentrate on driving. During a stop that can be concentrated on the display of the service device, since a microphone arranged near the display unit of the information service device can be used, it is possible to easily collect voice according to the driving state of the driver, We can receive comfortable information service.
[0014]
According to the second aspect of the present invention, it is determined whether or not the vehicle is running by using any one of the side brake operation signal, the shift position signal, the brake pedal operation signal, the steering holding signal, and the vehicle speed signal. By detecting this, it is possible to determine whether the driver is traveling and should be concentrated on driving, or whether the driver is in a stop where the driver can concentrate on the display of the information service device.
[0015]
According to the third aspect of the present invention, it is detected which information service device is connected to the information center from among the plurality of information service devices, and is arranged near the display of the information service device connected to the information center. By switching the connected microphone to connect to the telephone, the information service from the information center can be comfortably received through the display of the information service apparatus that the passenger wants to use and the microphone arranged in the vicinity thereof.
[0016]
According to the fourth aspect of the present invention, each microphone is provided with a pair of speakers, and switching is performed so that the speaker paired with the microphone connected to the telephone is connected to the telephone. Thus, the driver's attention is paid in the direction in which the speaker is arranged, and the voice of the driver can be more easily collected by the microphone.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
(First embodiment)
FIG. 1 is a diagram showing a system configuration of a vehicle hands-free system according to a first embodiment of the present invention. Note that an information service device is connected to the vehicle hands-free system, and is configured to obtain service provision from the information center.
[0019]
Here, the configuration of the vehicle hands-free system will be described.
[0020]
The telephone holder 10 accommodates a mobile telephone 11, and further, an information service apparatus 12, a microphone switching apparatus 13, and an external speaker 16 are connected to the telephone holder 10.
[0021]
The microphone switching device 13 is connected to a first microphone 14 and a second microphone 15, and further receives a vehicle state signal from the vehicle. As this vehicle state signal, for example, a side brake operation signal indicating whether the side brake is being pulled, a shift position signal indicating which position the shift lever is in, and a brake pedal operation indicating whether the brake pedal is depressed A signal, a steering holding signal indicating whether or not the steering wheel is held, a vehicle speed signal from a vehicle speed detection encoder provided on the wheel, and the like are input to the microphone switching device 13. Based on the vehicle state represented by these vehicle state signals, the microphone switching device 13 determines whether the vehicle is traveling, stopped or traveling at a low speed, and either the first microphone 14 or the second microphone 15 is selected. One of them is switched to connect to the mobile phone 11.
[0022]
The first microphone 14 is attached to the driver's seat side A pillar 18 or the vicinity thereof so as to easily collect voice from the driver during traveling. The second microphone 15 is installed in the vicinity of the information service device 12 mounted in the center console. The use of the second microphone 15 is such that, for example, when a character is displayed on the display unit 17 of the information service device 12 while the vehicle is stopped or traveling at a low speed, the driver The information service is often requested while watching the information, and the second microphone is used to easily collect the driver's voice.
[0023]
Next, FIG. 2 is a diagram illustrating an internal configuration of the microphone switching device 13.
[0024]
The microphone switching device 13 includes an internal ROM that stores a control program, a CPU 20 having a timer and an internal RAM, and a relay RL1 that switches a microphone connection in accordance with a control signal from the CPU 20.
[0025]
Next, a microphone switching operation in the vehicle hands-free system will be described with reference to FIGS. 1 and 2.
[0026]
First, when the vehicle state signal from the vehicle is off, the CPU 20 of the microphone switching device 13 is in a state where, for example, the side brake is not pulled, a state where the shift lever is in a position other than the parking position or the neutral position, It is determined that the vehicle is running when the vehicle is not depressed for a certain period of time or when the steering wheel is held in the hand. Here, when the vehicle state signal from the vehicle is a vehicle speed signal, the CPU 20 is set to a vehicle speed value equal to or higher than a preset vehicle speed value, or less than a preset time value and preset. When the vehicle speed is lower than the predetermined value, it is determined that the vehicle is traveling.
[0027]
On the other hand, when the vehicle state signal from the vehicle is in the on state, the CPU 20 of the microphone switching device 13 holds the brake pedal for a certain time, for example, when the side brake is pulled, when the shift lever is in the parking position or the neutral position. It is determined that the vehicle is stopped when the vehicle is stepped over the value or when the steering wheel is not held in the hand. Here, when the vehicle state signal from the vehicle is a vehicle speed signal, when the vehicle state signal is lower than a preset vehicle speed value, or is greater than a preset time value and set in advance. When the vehicle speed is less than or equal to the vehicle speed value, it is determined that the vehicle is stopped or traveling at a low speed.
[0028]
Next, when the CPU 20 of the microphone switching device 13 determines that the vehicle is traveling, it outputs an ON control signal to the relay RL1. Then, the solenoid coil provided in the relay RL1 is excited to open the contact a and connect the contact b and the contact c. As a result, the first microphone 14 attached to the driver side A pillar is connected to the mobile phone 11.
[0029]
On the other hand, when the CPU 20 of the microphone switching device 13 determines that the vehicle is stopped or traveling at a low speed, it outputs an off control signal to the relay RL1. And the excitation of the solenoid coil provided in relay RL1 is cancelled | released, the contact b is open | released, and the contact a and the contact c are connected. As a result, the second microphone 15 attached in the vicinity of the information service device 12 is connected to the mobile phone 11.
[0030]
As described above, according to the first embodiment, when the vehicle is traveling, the first microphone arranged near the driver's side pillar is switched to be connected to the telephone, while the vehicle is not traveling. By switching the second microphone placed near the display of the information service device to connect to the telephone, it was attached near the driver's side pillar when the driver should concentrate on driving While the microphone can be used and the driver is able to concentrate on the display of the information service device, the microphone placed near the display unit of the information service device can be used. Sound collection can be facilitated and a comfortable information service can be received.
[0031]
In addition, by using any one of the side brake operation signal, the shift position signal, the brake pedal operation signal, the steering holding signal, and the vehicle speed signal, it is detected whether the driver is driving or not. It is possible to determine whether the vehicle should be concentrated or whether the driver can stop on the display of the information service device.
[0032]
(Second Embodiment)
FIG. 3 is a diagram showing a system configuration of a vehicle hands-free system according to the second embodiment of the present invention. In the second embodiment, as in the first embodiment, an information service device is connected to the vehicular hand-free system, and the service provision from the information center can be obtained. .
[0033]
The feature of the second embodiment is that, in addition to the first embodiment, not only the microphone but also the speaker is switched simultaneously.
[0034]
For this reason, as shown in FIG. 4, the switching device 23 and the second speaker are provided for the first embodiment.
[0035]
The switching device 23, a first microphone 24, in addition to the second microphone 25, a first speaker 26, a second spin over mosquito 27 is connected.
[0036]
The second microphone 25 is installed in the vicinity of the information service device 22. When a character is displayed on the display unit 28 of the information service device 22 while the vehicle is stopped or traveling at a low speed, the driver often requests an information service while looking at the direction of the display unit 28. The microphone 2 makes it easier to collect the driver's voice. The second speaker 27 is attached in the vicinity of the information service device 22 so that the driver pays attention to the second microphone.
[0037]
Next, FIG. 4 is a diagram illustrating an internal configuration of the switching device 23.
[0038]
The switching device 23 includes an internal ROM that stores a control program, a timer and an internal RAM, a relay RL1 that switches a microphone connection according to a control signal from the CPU 20, a relay RL2 that switches a speaker connection according to a control signal from the CPU 20. It has.
[0039]
Next, with reference to FIG. 3 and FIG. 4, the operation of switching between the microphone and the speaker in the vehicle hands-free system will be described.
[0040]
Next, when the CPU 20 of the switching device 23 determines that the vehicle is traveling as described in the first embodiment, it outputs an on control signal to the relays RL1 and RL2. Then, the solenoid coils provided in the relays RL1 and RL2 are excited to open the contact point a and connect the contact points b and c. As a result, the first microphone 14 and the first speaker 26 attached to the driver side A pillar are connected to the mobile phone 11.
[0041]
On the other hand, when the CPU 20 of the microphone switching device 13 determines that the vehicle is stopped or traveling at a low speed as described in the first embodiment, it outputs an off control signal to the relays RL1 and RL2. And the excitation of the solenoid coil provided in relay RL1, RL2 is cancelled | released, each contact b is open | released, and the contact a and the contact c are connected. As a result, the second microphone 15 and the second speaker 27 attached in the vicinity of the information service device 12 are connected to the mobile phone 11.
[0042]
In this way, each microphone is provided with a pair of speakers, and a speaker that is paired with a microphone connected to the telephone is switched to be connected to the telephone, whereby the direction in which the speaker is arranged Therefore, the driver's attention can be paid and the voice of the driver can be collected more easily with the microphone.
[0043]
(Third embodiment)
FIG. 5 is a diagram showing a system configuration of a vehicle hands-free system according to the third embodiment of the present invention. Note that, in the third embodiment, an information service device is connected to the vehicle hands-free system in the same manner as the first embodiment, and the service provision from the information center can be obtained. .
[0044]
The telephone holder 10 accommodates the mobile phone 11 and is connected to the first information service device 12, the switching device 33 for switching the connection between the microphone and the speech force, and the second information service device 40 arranged for the rear seat. Has been.
[0045]
The switching device 33 includes a third microphone 42 and a second microphone installed in the vicinity of the second information service device 40 in addition to the first microphone 14 and the second microphone 15, the first speaker 16 and the second speaker 27. 3 speakers 43 are connected.
[0046]
The second information service device 40 is used for a rear seat and has a display unit 41. The display unit 41 has the same function as the display unit 38 of the first information service device 32, and has a button for connecting to the information service center on the display screen.
[0047]
In addition, each of the first information service device 32 and the second information service device 40 records the information service device from which the connection request is issued when connecting to the information service center. A unique identification information ID signal (0001, 0002) is output to the telephone holder 30 for each service device.
[0048]
Further, the third microphone 42 and the third speaker are installed in the vicinity of the second information service device 40.
[0049]
Next, FIG. 6 is a diagram illustrating an internal configuration of the switching device 33.
[0050]
The switching device 33 switches the speaker connection according to the control signal from the CPU 20 having the internal ROM, timer and internal RAM for storing the control program, relays RL1 and RL3 for switching the microphone connection according to the control signal from the CPU 20, and so on. Relays RL2 and RL4 are provided.
[0051]
Next, with reference to FIG. 5 and FIG. 6, a microphone and speaker switching operation in the vehicle hands-free system will be described.
[0052]
Now, it is assumed that a connection request button (not shown) to the information service center is displayed on the screen of the display unit 41 provided in the second information service device 40.
[0053]
When this connection request button is pressed by a passenger sitting in the rear seat, for example, a communication line is connected to the information service center via the mobile phone 11 and the second information service device 40 is connected. An identification information ID signal (0002) indicating that there is a request is output to the telephone holder 10.
[0054]
When the CPU 20 of the switching device 33 receives this identification information ID signal (0002) from the telephone holder 10, it outputs an ON control signal to the relays RL3 and RL4. Then, the solenoid coils provided in the relays RL3 and RL4 are excited to open the contact e to connect the contact d and the contact f. As a result, the third microphone 42 and the third speaker 43 attached to the rear seat side are connected to the mobile phone 11.
[0055]
On the other hand, it is assumed that a connection request button (not shown) to the information service center is displayed on the screen of the display unit 17 provided in the first information service device 12. When this connection request button is pressed by a passenger sitting in the passenger seat, for example, a communication line is connected to the information service center via the mobile phone 11 and the first information service device 12 is connected. An identification information ID signal (0001) indicating that there is a request is output to the telephone holder 10.
[0056]
When the CPU 20 of the switching device 33 receives this identification information ID signal (0001) from the telephone holder 10, it outputs an on control signal to the relays RL1 and RL2, and outputs an off control signal to the relays RL3 and RL4. Then, the solenoid coils provided in the relays RL1 and RL2 are excited to open the contact b and connect the contact a and the contact c. Further, the excitation of the solenoid coils provided in the relays RL3 and RL4 is released, the contact d is opened, and the contact e and the contact f are connected. As a result, the second microphone 15 and the second speaker 27 are connected to the mobile phone 11.
[0057]
In addition, with reference to FIG. 5, although the case where two information service apparatuses that can be connected to the information service center are provided in the vehicle has been described, there are three or more such information service apparatuses, and each information service apparatus The same operation is performed even when a microphone and a speaker are installed in the main body.
[0058]
In this way, it is detected which information service device is connected to the information center from among a plurality of information service devices, and the microphone arranged near the display of the information service device connected to the information center is connected to the telephone. By switching to, the information service from the information center can be comfortably received through the display of the information service device that the passenger wants to use and the microphone arranged in the vicinity thereof.
[Brief description of the drawings]
FIG. 1 is a diagram showing a system configuration of a vehicle hands-free system according to a first embodiment of the present invention.
FIG. 2 is a diagram showing an internal configuration of a microphone switching device 13;
FIG. 3 is a diagram showing a system configuration of a vehicle hands-free system according to a second embodiment of the present invention.
4 is a diagram showing an internal configuration of a microphone switching device 23. FIG.
FIG. 5 is a diagram showing a system configuration of a vehicle hands-free system according to a third embodiment of the present invention.
6 is a diagram showing an internal configuration of a microphone switching device 33. FIG.
[Explanation of symbols]
4 External Speaker 10 Telephone Holder 11 Mobile Phone 12 Information Service Device 13 Microphone Switching Device 14 First Microphone 15 Second Microphone 17 Information Service Device Display 18 Driver Side A Pillar

Claims (4)

A telephone for making calls outside the vehicle via a communication line;
An information service device for receiving information from an information center outside the vehicle via the telephone and displaying the information on a display;
A first microphone disposed near the driver side pillar;
A second microphone arranged near the display of the information service device;
Traveling detection means for detecting whether or not the vehicle is traveling;
When the vehicle is running, the first microphone is connected to the telephone. When the vehicle is not running, the second microphone is connected to the telephone, so that the outside of the vehicle can be adjusted according to the running state of the vehicle. A vehicle hands-free system comprising switching means for switching a microphone used for a call with an information center between a first microphone and a second microphone . The travel detection means includes
2. The vehicle according to claim 1, wherein whether the vehicle is running is detected by using any one of a side brake operation signal, a shift position signal, a brake pedal operation signal, a steering holding signal, and a vehicle speed signal. Hands-free system for vehicles. A plurality of the information service devices;
Each indicator is arranged at a different position, and the second microphone is arranged near each indicator,
Connection detection means for detecting from which information service device the information center is connected;
The vehicle hands-free according to claim 1, wherein when switching to the second microphone by the switching means, a microphone disposed near a display of an information service device connected to the information center is connected to the telephone. system. Each microphone is provided with a pair of speakers used,
The switching means is
2. The vehicle hands-free system according to claim 1, wherein a speaker that is paired with a microphone connected to the telephone is switched to be connected to the telephone.

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