JPH05338507A - Electric apparatus on vehicle - Google Patents

Abstract

PURPOSE:To emit operation confirmation sound (beep sound) for each electric apparatus on vehicle collectively from an audio unit. CONSTITUTION:An oscillating circuit 25 which is operated by beep sound instruction transmitted from a control microcomputer 24 for an audio unit 20 is provided, the oscillating circuit 25 is constructed so that it can be oscillated by beep sound instruction transmitted from a control microcomputer 29 for apparatuses other than the audio unit such as air conditioners, etc., and signals oscillated from the oscillating circuit 25 are applied to a loud speaker 27 through a power amplifier 23 to produce beep sound from the audio unit and other electric apparatuses.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beep sound (a confirmation sound generated to notify that an operation has been reliably performed) generated from each electric device such as an audio device mounted on a vehicle and an air conditioner. The present invention relates to a vehicle-mounted electric device that can generate all of the above from an audio device.

[0002]

2. Description of the Related Art FIG. 4 shows a configuration of a conventional vehicle-mounted electric device having a beep sound generation function. In FIG. 4, 1
Is a radio circuit as a unit of the audio device (hereinafter referred to as “audio unit”), and 2 and 3 are powers for the right channel and the left channel for amplifying the right and left channel audio signals output from the radio circuit 1, respectively. Amplifier, and each of these power amplifiers 2, 3
Speakers 4 and 5 are separately connected to.

Reference numeral 6 is a radio circuit 1 and an oscillation circuit 7 described later.
Is a microcomputer for audio (hereinafter simply referred to as a microcomputer) for controlling the. This microcomputer 6 has a key input port 6a and a beep sound output port 6b,
The beep sound output port 6b has an oscillation circuit 7 for beep sound.
Is connected, and the oscillation signal of the oscillation circuit 7 is output to the power amplifier 2 for the right channel.

When a key input signal for operating the audio unit is input to the key input port 6a in the on-vehicle electrical equipment constructed as described above, the microcomputer 6 controls the radio circuit 1 according to the key input signal. A signal is output and the output level of the output port 6b is changed when the conditions for producing a beep sound are met. For example, the output of the output port 6b is set to "H
i ". When this “Hi” signal is input to the oscillation circuit 7, the oscillation circuit 7 oscillates for the time when the input is “Hi”, and the oscillation signal is amplified by the power amplifier 2 and then applied to the speaker 4. , A beep sound is generated from the speaker 4, and the user is asked to confirm the operation.

FIG. 5 shows the structure of a conventional air conditioner having a beep sound generation function. In FIG. 5, 10 is a microcomputer for an air conditioner (not shown), and this microcomputer 10 is a key input port 10a.
And a beep sound output port 10b, and an output port 1
A piezoelectric buzzer 11 is connected to 0b.

In the air conditioner thus configured, when a key input signal for operating the air conditioner is input to the key input port 10a,
The microcomputer 10 outputs a control signal to the air conditioner, and changes the output of the output port 10b when the conditions for producing a beep sound are met. For example, the output of the output port 10b is set to “H
i ". When this “Hi” signal is applied to the piezoelectric buzzer 11, the piezoelectric buzzer 11 vibrates during the “Hi” time and makes a beep sound. This allows you to check the operation of the air conditioner.

[0007]

However, in the conventional vehicle-mounted electric equipment as described above, since the audio unit itself already has a speaker for generating a sound, a function for newly generating a beep sound is added. Since it does not require major modification, it can be configured at low cost, but if you try to generate a beep sound from another device such as an air conditioner other than the audio unit,
There is a problem that a sounding device such as a piezoelectric buzzer is required, which makes it expensive.

Further, the conventional audio unit, air conditioner, and other electrical equipment have different beeper sounds from different beeper sound generators, so that the sound quality is different and the quality is deteriorated. However, there was a problem of giving unnecessary sense of incongruity.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to collect the beep sounds (operation confirmation sounds) of each electric device mounted on a vehicle from an audio unit. An object of the present invention is to provide an in-vehicle electric device that can be generated.

[0010]

In order to achieve the above object, the present invention provides an in-vehicle electrical equipment including another device including an audio device, wherein the audio device generates a predetermined audio signal. And an external input terminal for receiving an audio signal generation instruction signal emitted from the other device, and a control device for generating an audio signal in the audio signal generation source in response to the audio signal generation instruction signal from the external input terminal. It is configured to have and.

[0011]

According to the present invention, the control means supplies the operation command signal from the operation means of the audio device or the operation command signal from another device through the external input terminal of the audio device to the audio signal generating source. Then, by driving the audio output means, a confirmation sound for confirming the operation of the entire apparatus can be generated collectively.

[0012]

【Example】

(First Embodiment) FIG. 1 shows a first embodiment of an in-vehicle electric device according to the present invention.
2 shows the configuration of the embodiment.

In FIG. 1, reference numeral 20 denotes a unit (hereinafter referred to as "audio unit") which constitutes an audio device, and includes a radio circuit 21 as a sound source of an audio signal, and right and left channels output from the radio circuit 21. Right and left channel power amplifiers 22 and 23 for amplifying the respective audio signals
And an audio microcomputer (hereinafter abbreviated as "microcomputer") for controlling the oscillator circuit 25 for generating a signal for confirming the operation of the radio circuit 21 and its operation section (not shown).
24, the microcomputer 24 has a key input port 24a and a beep sound output port 24b.

The oscillator circuit 25 is used for the audio unit 20.
It is also used as an oscillation signal source of a beep sound signal of the air conditioner, which will be described later, and is connected between the beep sound output port 24b of the microcomputer 24 and the right channel power amplifier 22. A right channel speaker 26 is connected to the output end of the right channel power amplifier 22, and a left channel speaker 27 is connected to the output end of the left channel power amplifier 23.

Reference numeral 28 is a control unit for the air conditioner, which is provided with a microcomputer (hereinafter abbreviated as "microcomputer") 29 for controlling the air conditioner and generating a beep sound command signal for confirming the operation of the air conditioner. Has a key input port 29a and a beep sound command output port 29b. Beep command output port 2
9b is connected to an output terminal 28a provided on the control unit 28, and the output terminal 28a is connected to the audio unit 20.
Is connected to the input terminal 20a provided on the. The input terminal 20a is connected to the input side of the oscillation circuit 25 and the standby terminal 22a of the right channel power amplifier 22.

Next, the operation of the first embodiment constructed as described above will be explained.

When a key input signal for operating the audio unit 20 is input to the key input port 24a,
The microcomputer 24 outputs a control signal to the radio circuit 21 in response to a key input signal, and at the time when a condition for producing a beep sound is met, a beep sound command is sent from the output port 24b. When this beep sound command is input to the oscillation circuit 25, the oscillation circuit 25 is supplied while the beep sound command is being sent.
Oscillates and outputs the oscillation signal to the power amplifier 23.

On the other hand, when a beep sound command is applied to the standby terminal 23a of the power amplifier 23, the power amplifier 2
3 is activated, the speaker 27 is driven by amplifying the oscillation signal from the oscillation circuit 25 and applying it to the speaker 27,
Generates a beep sound. By listening to this beep sound, the user can confirm that the operation of the audio unit 20 has been performed.

Next, the operation when the air conditioner side is operated will be described.

When a key input signal for operating the air conditioner is input to the key input port 29a, the microcomputer 29 outputs a control signal to an air conditioner (not shown) in response to the key input and makes a beep sound. When the conditions are met, a beep sound command is sent from the output port 29b. This beep command is output from the output terminal 28.
When input to the oscillation circuit 25 through a and the input terminal 20a of the audio unit 20, the oscillation circuit 25 oscillates while the beep sound command is being sent out as described above. When the beep sound command is input to the standby terminal 23a of the power amplifier 23, the power amplifier 23 is activated and a signal oscillated from the oscillation circuit 25 is amplified and added to the speaker 27. Therefore, a beep sound is generated from the speaker 27, and it can be confirmed that the air conditioner is operated.

As described above, according to the first embodiment, the beep sound of the air conditioner mounted on the vehicle can be generated by using the beep sound oscillation circuit and the speaker on the audio unit side. The beep sound oscillating circuit and the piezoelectric buzzer on the conditioner side can be omitted, and the cost can be significantly reduced.

Further, since a beep sound having the same sound quality is generated regardless of whether the audio unit or the air conditioner is operated, the quality of the vehicle-mounted electric device can be improved.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIGS.

FIG. 2 shows the overall construction of the on-vehicle electrical equipment. In FIG. 2, reference numeral 30 denotes an audio unit, which is a radio circuit 31 as a sound source of an audio signal.
And a power amplifier (AF amplifier) 32 that amplifies the audio signal output from the radio circuit 31, and a microcomputer (hereinafter abbreviated as microcomputer) 33 that has a control function of the radio circuit 31 and a beep sound generation function. A speaker 34 is connected to the power amplifier 32.

The microcomputer 33 includes an arithmetic control unit 33a and a sound source unit 33b for generating a beep sound.
The input port 35 of the air conditioner unit 3
6 is connected.

Next, the operation of the second embodiment constructed as described above will be described with reference to the flow chart shown in FIG.

First, in step S1, the key input port 3 provided in the microcomputer 33 of the audio unit 30.
The audio unit 30 is driven by inputting a key input signal from 3c.

In the next step S2, it is determined whether or not there is a beep sounding request command. If there is a request command, the process proceeds to step S3. In step S3, the sound source unit 33 is operated based on the beep sounding request command from the arithmetic control unit 33a.
drive b. By outputting the beep sound signal transmitted from the sound source section 33b to the speaker 34 via the power amplifier 32, the speaker 34 is driven to generate a beep sound. Then, in the next step S4, it is determined whether the system power supply is off. Here, when the system power is on, the process returns to step S2, and when the system power is off, the program ends.

It should be noted that it is not necessary to determine whether the system power is turned off in the steps shown in FIG. 3, and it may be determined after step S1.

In the second embodiment as described above, it is not necessary to provide a beep sound source separately, and the beep sound source can be built in the microcomputer 33, and the same effect as in the first embodiment can be obtained. Needless to say, the present invention can be similarly applied to a type in which the sound source unit is not built in the microcomputer although it has the form of FIG.

[0031]

As is apparent from the above-described embodiments, the present invention uses the beep sound generating means such as the beep sound source section and the speaker provided in the audio device of the on-vehicle electrical equipment to replace the beep sound of devices other than the audio device. Since it is also configured to generate a beep sound, it is not necessary to provide an element for generating a beep sound in the other device, cost can be reduced, and a beep sound with the same sound quality can be generated, which makes the user feel uncomfortable. There is an effect that the quality as an in-vehicle electric device can be improved without giving

[Brief description of drawings]

FIG. 1 is a block diagram of an in-vehicle electric device according to a first embodiment of the present invention.

FIG. 2 is a block diagram of an in-vehicle electric device according to a second embodiment of the present invention.

FIG. 3 is a flowchart showing a processing procedure in a second embodiment.

FIG. 4 is a block diagram of a conventional vehicle-mounted on-vehicle electrical device.

FIG. 5 is a block diagram of a conventional vehicle-mounted air conditioner.

[Explanation of symbols]

 20 audio unit 21 radio circuit 22,23 power amplifier 24 microcomputer 25 oscillating circuit 26, 27 speaker 28 air conditioner control unit 29 microcomputer 30 audio unit 31 radio circuit 32 power amplifier 33 microcomputer 33a arithmetic control unit 33b beep sound source unit

Claims (2)

[Claims] 1. An in-vehicle electrical device including at least one audio device, wherein the audio device includes an audio signal generation source that generates a predetermined audio signal in response to an operation of the audio device, and a device other than the audio device. An external input terminal for receiving an audio signal generation instruction signal emitted from the device; and a control device for generating an audio signal in the audio signal generation source in response to the audio signal generation instruction signal from the external input terminal. In-vehicle electrical equipment characterized by: 2. The on-vehicle electrical device according to claim 1, wherein the predetermined audio signal is a beep sound indicating an operation confirmation.