JPH10264731A - On-vehicle volume control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make no correction on instantaneously high level volume caused by door closing sound of a vehicle by constituting an on-vehicle volume control system in such a way that a DSP control means receives a door opening signal from detecting means and controls to switch off the volume correcting function of a DSP at the time of the door being opened. SOLUTION: A sound device 10 is mounted with a DSP 3, and the DSP 3 has a volume correcting function 3a. A microphone 12 for detecting noise is connected to the DSP 3, and a plurality of speakers 11 are connected to the sound device 10. Upon the input of information indicating door opening from any one of door opening/closing detecting means 1a-1d, a DSP control means 2 controls to switch off the volume correcting function 3a of the DSP 3, and upon the input of information indicating that all the doors are closed, the DSP control means 2 controls to switch on the volume correcting function 3a of the DSP 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle sound volume control system, and more particularly, to an on-vehicle sound volume control system for a vehicle having a DSP mounted on an audio device.

[0002]

2. Description of the Related Art In a vehicle equipped with a DSP in an acoustic device, one of the functions using the DSP is a volume correction function. The volume correction function performs noise detection using a microphone or the like, and detects the detected noise level. In this system, the sound volume is automatically corrected in response to the noise, and the sound of closing the door is also regarded as noise, and the sound volume is automatically corrected.

[0003]

However, the above-mentioned correction by the door closing sound which is instantaneously judged to be a high level of noise may give a sense of incongruity in hearing, and the correction is performed by the door closing sound. There are many opinions from users that it is better not to use them. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and requires a DSP when closing a door.
A vehicle-mounted volume adjustment control system capable of controlling the volume correction function of the vehicle to be in an off state and preventing the volume from being corrected by a door closing sound that is instantaneously determined to be a high level of noise. It is intended to be.

[0004]

Means for Solving the Problems and Effects There is provided a vehicle-mounted volume adjustment control system (1) according to the present invention for achieving the above object. A DSP control means for controlling the DSP, and a detection means for detecting opening of the door, wherein the DSP control means receives a door opening signal from the detection means,
It is characterized in that the volume control function of the SP is controlled to be turned off.

According to the on-vehicle sound volume adjustment control system (1), when any one of the doors of the vehicle is open, the sound volume correction function is controlled to be turned off.

Therefore, when the door is closed, the volume correction function is in the OFF state, so that a high-level volume correction is not instantaneously performed by the sound of closing the door, giving a sense of incompatibility. This solves the user's needs.

A vehicle-mounted sound volume adjustment control system (2) according to the present invention is the vehicle-mounted sound volume adjustment control system (1) according to the present invention, further comprising detection means for detecting opening of a trunk lid, wherein the DSP control means comprises: A trunk lid opening signal from the detecting means is received, and when the trunk lid of the vehicle is opened, control is performed so as to turn off the volume correction function of the DSP.

[0008] According to the vehicle-mounted volume adjustment control system (2), when the trunk lid of the vehicle is open, the volume correction function is turned off.

Therefore, when the trunk lid is closed, the volume correction function is in the OFF state, so that a momentarily high level volume correction by the closing sound of the trunk lid is not performed, and the The feeling of strangeness is eliminated.

A vehicle-mounted sound volume adjustment control system (3) according to the present invention is the vehicle-mounted sound volume adjustment control system (1) or (2) described above, further comprising a detecting means for detecting opening of the hood. Means for receiving a bonnet opening signal from the detection means and controlling to turn off the volume correction function of the DSP when the hood of the vehicle is opened.

According to the on-vehicle sound volume adjustment control system (3), when the hood of the vehicle is open, the sound volume correction function is turned off.

Therefore, when the bonnet is closed, the volume correction function is in the OFF state, so that a high-level volume correction due to the closing sound of the hood is not instantaneously performed, and the audibility is uncomfortable. The embrace is eliminated.

Further, in the vehicle-mounted volume adjustment control system (4) according to the present invention, in the vehicle-mounted volume adjustment control system (1), the detecting means for detecting the opening of the door may include a lamp when the door of the vehicle is opened. It is characterized in that information for turning on is taken in.

Normally, the vehicle is provided with a means for detecting the opening and closing of the door and outputting a signal for turning on the lamp. According to the above-mentioned on-vehicle volume control system (4), the lamp is opened when the vehicle is opened. It is configured to take in information for turning on, and it is not necessary to provide a new means for detecting the open / closed state of the door.

Further, in the vehicle-mounted sound volume adjustment control system (5) according to the present invention, in the vehicle-mounted sound volume adjustment control system (1), the detecting means for detecting the opening of the door includes a door opening lever of the vehicle. It is characterized by taking in operated information.

According to the on-vehicle sound volume adjustment control system (5), it is possible to detect the open / closed state of the door by taking in information on the operation of the door opening lever of the vehicle. Therefore, it is possible to accurately determine the off control of the volume correction function using the information.

The vehicle-mounted volume control system (6) according to the present invention is the vehicle-mounted volume control system according to any one of the above-mentioned vehicle-mounted volume control systems (1) to (5). When the DSP control means receives a closed state signal from the detection means, and all the open / close parts formed on the outer surface of the vehicle body are closed, The DSP
Is controlled to turn on the volume correction function.

According to the vehicle-mounted sound volume adjustment control system (6), when all of the open / close portions (doors, hoods, etc.) formed on the outer surface of the vehicle body are closed,
The volume correction function can be turned on. Therefore, when the opening / closing portion is opened (for example, the left front door is opened), the volume correction function that has been turned off is changed to the opening / closing portion (opening / closing portions such as the door including the left front door and the hood). By being closed,
It can be turned on again.

The vehicle-mounted sound volume adjustment control system (7) according to the present invention is the vehicle-mounted sound volume adjustment control system according to any one of the above-described vehicle-mounted sound volume adjustment control systems (1) to (6). The feature is that the constant is set long.

According to the vehicle-mounted sound volume adjustment control system (7), since the time constant is set long,
It does not cause a sense of hearing discomfort that may occur when the control in the volume correction function is turned off instantaneously.

The vehicle-mounted sound volume adjustment control system (8) according to the present invention is the vehicle-mounted sound volume adjustment control system according to any one of the above-described vehicle-mounted sound volume adjustment control systems (1) to (7), when the control in the sound volume correction function is ON. The feature is that the constant is set long.

According to the on-vehicle volume adjustment control system (8), the time constant is set to be long,
The sound volume correction can be started gently, and when the control in the sound volume correction function is turned on, a sense of incongruity that may be caused by the instantaneous sound volume correction is not caused.

A vehicle-mounted volume adjustment control system (9) according to the present invention is the vehicle-mounted volume adjustment control system (1) to (8) for determining whether or not to activate the DSP control means. It is characterized in that it comprises a selection means for allowing the user to select any desired.

According to the vehicle-mounted sound volume adjustment control system (9), the state of the audio device can be set in a desired mode by providing the selection means for selecting whether to activate the DSP control means. Can be set.

[0025]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of an on-vehicle sound volume adjustment control system according to the present invention. FIG. 1 is a block diagram schematically showing a main part of an in-vehicle volume adjustment control system according to Embodiment (1). In the figure, reference numeral 10 denotes an audio device, and the audio device 10 has a DS.
The P3 is mounted, and the DSP 3 has a volume correction function 3a. A microphone 12 for noise detection is connected to the DSP 3, and a plurality of speakers 11 are connected to the audio device 10.

Also, reference numerals 1a to 1d denote door open / close detecting means for detecting a door open / close state of the vehicle.
1a is for the right front door, 1b is for the left front door, 1
c indicates the right rear door, and 1d indicates the left rear door. The door opening / closing detecting means 1a to 1d are respectively connected to the DSP control means 2, and the DSP control means 2 is connected to the DSP 3.

The DSP control means 2 includes a door open / close detection means 1
When the information of the door opening is input from any of a to 1d, the volume control function 3a of the DSP 3 is controlled to be turned off, and the doors are all closed by the door open / close detecting means 1a to 1d. When the information that there is
3 is controlled to be turned on.

The operation of the DSP control means 2 in the on-vehicle sound volume adjustment control system according to the embodiment (1) will be described with reference to the flowchart shown in FIG. First, in step 1, a door open signal is received from the door open / close detecting means 1a to 1d, and then the process proceeds to step 2. In step 2, it is determined whether or not the right front door is open. If it is in the open state, the process proceeds to step 7, and if not, the process proceeds to step 3.

In step 3, it is determined whether or not the left front door is open. If it is in the open state, the process proceeds to step 7, and if not, the process proceeds to step 4.
In step 4, it is determined whether or not the right rear door is open. If it is in the open state, the process proceeds to step 7, and if not, the process proceeds to step 5. In step 5,
It is determined whether the left rear door is open. If it is in the open state, proceed to step 7; if it is not in the open state,
Move to step 6.

In step 6, since the doors are all closed, control is performed to turn on the volume correction function 3a of the DSP 3. In step 7, since any one of the doors is open, the DSP 3 The sound volume correction function 3a is controlled to be turned off.

According to the on-vehicle sound volume control system according to the first embodiment, when at least one of the vehicle doors is open, the sound volume correction function 3a of the DSP 3 is turned off. Is controlled so that the volume correction function 3a of the DSP 3 is turned on when the doors are all closed.

Therefore, when the door is closed, the volume correction function 3a is in the off state, so that a high level of volume correction is not instantaneously performed due to the door closing sound, which gives a sense of incompatibility. This solves the user's needs. Further, by closing all the doors, the volume correction function 3a that has been in the off state can be turned on again.

Normally, the vehicle is provided with a means for detecting the opening and closing of the door and outputting a signal for lighting the lamp. The door opening / closing detecting means 1a to 1d takes in information for lighting the lamp when the door is opened. With this configuration, it is not necessary to provide a new means for detecting the open / closed state of the door.

Further, the door opening / closing state can be detected by configuring the door opening / closing detecting means 1a to 1d to take in information on the operation of the door opening lever. Therefore, it is possible to accurately determine the off control of the volume correction function 3a of the DSP 3 using the information.

FIG. 3 is a block diagram schematically showing a main part of a vehicle-mounted sound volume adjustment control system according to the embodiment (2). Here, the description of the same configuration as that of the vehicle-mounted volume adjustment control system shown in FIG. 1 is omitted. A trunk lid opening / closing detecting means 4 for detecting a trunk lid opening / closing state of the vehicle and a hood opening / closing detecting means 5 for detecting a bonnet opening / closing state are each provided with a DS.
It is connected to P control means 2.

The DSP control means 2 includes a door open / close detection means 1
a to 1d, when opening information is input from any of the trunk lid opening / closing detecting means 4 and the bonnet opening / closing detecting means 5, the DSP 3 controls the volume correction function 3a of the DSP 3 to be turned off, and detects the door opening / closing. When the information that the door, the trunk lid, and the hood are all closed is input from the means 1a to 1d, the trunk lid opening / closing detecting means 4, and the hood opening / closing detecting means 5, the volume correction function 3a of the DSP 3 is turned on. To control.

The operation of the DSP control means 2 in the on-vehicle sound volume adjustment control system according to the embodiment (2) will be described with reference to the flowchart shown in FIG. First, in step 11, a door opening signal from the door opening / closing detecting means 1a to 1d, a trunk lid opening signal from the trunk lid opening / closing detecting means 4, and a hood opening signal from the hood opening / closing detecting means 5 are received. Proceed to. In step 12, it is determined whether or not the right front door is open. If it is open, step 19
If not, the process proceeds to step 13.

At step 13, it is determined whether or not the left front door is open. If it is in the open state, the process proceeds to step 19; otherwise, the process proceeds to step 14. In step 14, it is determined whether or not the right rear door is open. If it is in the open state, the process proceeds to step 19; otherwise, the process proceeds to step 15. In step 15, it is determined whether or not the left rear door is open. If it is in the open state, the process proceeds to step 19; otherwise, the process proceeds to step 16.

In step 16, it is determined whether or not the trunk lid is open. If it is in the open state, the process proceeds to step 19; otherwise, the process proceeds to step 17. In step 17, it is determined whether or not the hood is open. If it is in the open state, the process proceeds to step 19; otherwise, the process proceeds to step 18.

In step 18, since the door, the trunk lid, and the hood are all closed, control is performed to turn on the volume correction function 3a of the DSP 3, and step 1
In 9, since any one of the door, the trunk lid, and the hood is in the open state, control is performed to turn off the volume correction function 3 a of the DSP 3.

According to the vehicle-mounted sound volume adjustment control system according to the embodiment (2), when any one of the door, the trunk lid and the hood of the vehicle is open, the sound volume of the DSP 3 is corrected. The function 3a is controlled so as to be turned off, and when the door, the trunk lid and the hood are all closed, the volume correction function 3a
Is turned on.

Therefore, the volume of the sound is not instantaneously corrected at a high level by any of the closing sounds of the door, the trunk lid, and the hood, so that the user does not feel uncomfortable, and meets the needs of the user. be able to. In addition, when the door, the trunk lid, and the hood are all closed, the volume correction function 3a that has been in the off state can be turned on again.

As the trunk lid opening / closing detecting means 4 and the bonnet opening / closing detecting means 5, a sensor for detecting the open / closed state of the trunk lid and the bonnet may be provided.

FIG. 5 is a block diagram schematically showing a main part of an on-vehicle sound volume adjustment control system according to the embodiment (3). Here, the description of the same configuration as that of the vehicle-mounted volume adjustment control system shown in FIG. 1 is omitted. In the figure, reference numeral 6 denotes a selection means that allows the user to arbitrarily select whether to operate the DSP control means 2.
Is connected to the DSP control means 2.

The operation of the selection means 6 in the on-vehicle sound volume adjustment control system according to the embodiment (3) will be described with reference to the flowchart shown in FIG. First, in step 21, it is determined whether or not the operation has been performed by the user. If the operation has been performed, the process proceeds to step 22; otherwise, the process returns to step 21. In step 22, it is determined whether the operation selection is on or off. If it is determined to be on, the process proceeds to step 23, where the DSP control means 2
Is operated, and if it is determined to be off, the process proceeds to step 24 and the DSP control means 2 is not operated.

According to the on-vehicle sound volume adjustment control system according to the above-described embodiment (3), the selection means 6 for enabling the user to select whether or not to operate the DSP control means 2 is provided. Can be set to the state of the acoustic device 10.

In any of the on-vehicle volume adjustment control systems according to the above-described embodiments (1) to (3),
By setting a long time constant when the control in the sound volume correction function 3a of the SP3 is turned off, a sense of incongruity that may occur when the control is turned off instantaneously is not caused.

In any of the on-vehicle volume adjustment control systems according to the above-mentioned embodiments (1) to (3),
By setting a long time constant when the control in the volume correction function 3a of SP3 is turned on, the volume can be gradually corrected, and when the control is turned on, the volume is corrected instantaneously. It does not cause any possible auditory discomfort.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing a main part of an in-vehicle volume adjustment control system according to Embodiment (1) of the present invention.

FIG. 2 is a flowchart showing an operation of a DSP control unit in the vehicle-mounted volume adjustment control system according to the embodiment (1).

FIG. 3 is a block diagram schematically showing a main part of an in-vehicle volume adjustment control system according to a second embodiment.

FIG. 4 is a flowchart showing an operation of a DSP control unit in the vehicle-mounted volume adjustment control system according to the embodiment (2).

FIG. 5 is a block diagram schematically showing a main part of an in-vehicle volume adjustment control system according to Embodiment (3).

FIG. 6 is a flowchart showing an operation of a selection unit in the vehicle-mounted volume adjustment control system according to the embodiment (3).

[Explanation of symbols]

 1a Right front door open / close detecting means 1b Left front door open / close detecting means 1c Right rear door open / close detecting means 1d Left rear door open / close detecting means 2 DSP control means 3 DSP 3a Volume correction function 4 Trunk lid open / close detecting means 5 Bonnet open / close detecting means 6 selecting means Reference Signs List 10 sound device 11 speaker 12 microphone

Claims (9)

[Claims] 1. An audio device includes a DSP (Digital Signal Pro).
a vehicle-mounted volume control system for a vehicle equipped with a cessor, comprising: DSP control means for controlling the DSP; and detection means for detecting opening of the door, wherein the DSP control means detects a door from the detection means. An on-vehicle sound volume adjustment control system for receiving an opening signal and controlling the sound volume correction function of the DSP to be turned off when the vehicle door is opened. 2. A device for detecting opening of a trunk lid, wherein the DSP control unit receives a trunk lid opening signal from the detecting unit, and turns off a volume correction function of the DSP when the trunk lid of the vehicle is opened. The on-vehicle sound volume adjustment control system according to claim 1, wherein the control is performed so that the sound volume is adjusted. And a detecting means for detecting opening of the bonnet, wherein the DSP control means receives a bonnet opening signal from the detecting means, and turns off the volume correction function of the DSP when the hood of the vehicle is opened. The on-vehicle volume adjustment control system according to claim 1 or 2, wherein the system controls the volume control. 4. A detecting means for detecting opening of the door,
2. The on-vehicle sound volume adjustment control system according to claim 1, wherein information for turning on a lamp when the vehicle door is opened is taken in. 5. A detecting means for detecting opening of the door,
2. The on-vehicle sound volume adjustment control system according to claim 1, wherein information for operating a door opening lever of the vehicle is taken. 6. The DS according to claim 1, further comprising a detection unit configured to detect a closed state of an opening / closing portion formed on an outer surface of a body of the vehicle.
P control means receives the closed state signal from the detection means,
6. The control device according to claim 1, wherein when the open / close portion formed on the outer surface of the body of the vehicle is completely closed, control is performed to turn on the volume correction function of the DSP. The vehicle-mounted sound volume control system according to the paragraph. 7. The in-vehicle sound volume adjustment control system according to claim 1, wherein a time constant when control in the sound volume correction function is turned off is set to be long. 8. The in-vehicle sound volume adjustment control system according to claim 1, wherein a time constant when control in the sound volume correction function is turned on is set to be long. 9. The on-vehicle vehicle according to claim 1, further comprising a selection unit that allows a user to arbitrarily select whether to activate the DSP control unit. Volume control system.