JP2602259Y2 - door mirror - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door mirror having a function of detecting the approach of an emergency vehicle and notifying the driver of the approach.

[0002]

2. Description of the Related Art Recent automobiles have high sound insulation, and it is difficult to hear outside sounds when the windows are closed. This tendency is particularly strong when listening to a car audio device at a large volume. For this reason, even if the emergency vehicle is approaching, it is delayed to notice this, and the emergency vehicle may be troubled.

In order to solve such inconveniences, JP-A-2-274007 and JP-A-3-6.
No. 797 has been conventionally proposed. This is done by placing a microphone outside the vehicle and collecting sounds outside the vehicle, detecting the alarm sound emitted by the emergency vehicle from among them, reducing or reducing the volume of the car audio device, or interrupting music playback. A message notifying the approach of the emergency vehicle is mixed into a car audio device and reproduced from a speaker, thereby notifying a driver or the like of the approach of the emergency vehicle.

[0004]

In the above-mentioned conventional emergency vehicle approach notification system, the arrangement of a microphone outside the vehicle, the arrangement of an alarm sound detection circuit for detecting an alarm sound from a microphone sound collection signal, and the detection of an alarm sound are performed. At times, the arrangement of the informing means for informing it is not particularly taken into consideration, and there is a problem in that installation and wiring are troublesome depending on the installation location.

[0005] Further, when the alarm sound detection circuit is arranged in a dashboard inside a vehicle or the like and a microphone outside the vehicle is connected to the alarm sound detection circuit via a long cable,
Since the signal flowing through this cable is an extremely small signal, it is susceptible to noise, and malfunctions such as detection of an emergency vehicle not approaching or detection of an emergency vehicle not approaching. There was a fear. In addition, when a warning message is detected, a message notifying that an emergency vehicle is approaching is mixed into the audio device body, injected and reproduced from the speaker, and the effect cannot be obtained unless the car audio device is operating. was there.

This invention is intended to solve the above-mentioned problems in the prior art and to facilitate the arrangement of an emergency vehicle approach notification system to a vehicle.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a vehicle flow.
Between the sash section of the door and the front pillar
The outer part of the car and the inner part of the car are separated in the
A base fixed to the front door and the base;
To the outer part of the car
With the front door protruding and retracted
And a body part displaceably disposed in the
An amirror, a microphone disposed on a portion of the door mirror outside the vehicle , and a microphone built in the door mirror.
A signal cable through which the sound pickup signal output from the
Built in the door mirror, guided through the signal cable
Enter the sound pickup signals of the microphone to be a warning sound detecting circuit for detecting an alarm sound generated by the emergency vehicle from said population sound signal,
Built in the door mirror, output from the alarm sound detection circuit
Input a warning sound detection signal and output a predetermined notification signal.
Output part to be pressed, and
Driven by a notification signal output from the output unit.
Is, those formed by and a notifying means for notifying that the alarm sound is detected in the vehicle.

In addition, this invention is built in the door mirror.
An alarm sound detection signal output from the alarm sound detection circuit.
Number to control other units outside the door mirror.
Additional output to other units that send control signals
Can also be provided.

[0009]

According to the invention, a door mirror car is provided.
A microphone located on the outside collects sound outside the vehicle,
The alarm signal detection circuit built into the Amirror
Alarm sound is detected, and the output unit built in the door mirror is
Disposed on the inner side portion of the base of the door mirror through
Driving the alarm means that the alarm sound was detected.
Will be notified within.

According to the invention of claim 2, the door mirror is provided.
Other unit via an output unit to another unit built into the unit.
A control signal is sent to the unit and the other units are
An appropriate control is performed.

[0011]

An embodiment of the present invention will be described below. FIG.
(A) shows an arrangement example of a microphone and a notification means when the present invention is applied to a door mirror on the driver's seat side.
Is a state viewed from the outside of the vehicle, and (b) is a state viewed from the inside of the vehicle.

The door mirror 10 is a front door 1 of a vehicle.
In the sash portion triangular zone 20 sandwiched between the sash portion 16 and the front pillar 18 of the second door glass 14, the sash portion is attached to the front door 12. Door mirror 1
Reference numeral 0 denotes a base portion 22 fixed to the front door 12 and a body portion attached to the base portion 22 so as to be rotatable in a horizontal direction and displaceably disposed so as to protrude and retract from the front door 12. 24. A mirror 26 is mounted on the body 24. In the door mirror 10, the entirety of the body portion 24 and the portion of the base portion 22 outside the vehicle constitute a door mirror vehicle exterior 28, and the portion of the base portion 22 inside the vehicle is the door mirror vehicle interior 3
0.

The body 24 located outside the vehicle has a waterproof,
A microphone 32 having a windproof and anti-vibration structure is incorporated, and collects environmental sounds outside the vehicle. Also, a speaker 3 as a notification means is provided on a bracket cover 34 of the base portion 22 inside the vehicle.
6 and a display 38 such as a lamp and an LED are attached to the inside of the vehicle. The speaker 36 can also serve as a reproduction speaker of the car audio device. Further, a microphone 32 is provided at any part of the door mirror 10.
The alarm sound detection circuit for detecting the alarm sound 42 emitted from the emergency vehicle 40 from the sound collection signal of the above is built in and incorporated.

According to the above configuration, the emergency vehicle 40 outside the vehicle
Is approaching while sounding the alarm sound 42, the alarm sound 42 is collected by the microphone 32 on the outside of the vehicle, detected by the alarm sound detection circuit, and is output from the speaker 36 on the inside of the vehicle to the alarm buzzer sound or “beep! An alert message such as "Emergency vehicle is approaching. Slow down to the left!" Is issued, and the driver is informed that the emergency vehicle 40 is approaching by lighting or blinking the display 38. At the same time, the door glass 12 (power window) can be automatically opened slightly.

FIG. 1 shows an embodiment of an alarm sound detection circuit arranged in the door mirror 10. An alarm sound detection circuit 44 and an output section 46 for driving the speaker 36 and the display 38 based on the detection output are provided. , Are waterproofed and built in the body part 24.

The sound pickup signal output from the microphone 32 is stably amplified to a certain level by an amplifier circuit 48 with an automatic level control (ALC), and then a band-pass filter 50 is provided for a range of an alarm sound generated by various emergency vehicles. Only the components are extracted. The specific frequency detection circuits 52 and 54 detect a frequency component corresponding to the alarm sound (peak sound) of the ambulance from the output signal of the band-pass filter 50.
That is, in the detection circuit 52, 770 Hz corresponding to the peep sound
And the detection circuit 54 detects the component 9
A component at 60 Hz is detected. The detection circuits 56 and 58
Is calculated from the output signal of the band-pass filter 50 as a frequency component corresponding to a warning sound (woo-woo sound) of a fire engine.
820 Hz and 880 Hz frequency components are detected.

The peak sound period comparison circuit 60 measures the period of occurrence of the detected peak sound and compares it with a specified period of generation of the peak sound. Output. The woofer sound cycle comparison circuit 62 measures the detected woofer sound generation cycle, compares the detected woofer sound generation cycle with the specified woofer sound generation cycle, and outputs a woofer sound detection signal S2 when the two coincide. I do. The peak sound detection signal S1 and the woofer sound detection signal S2 are input to an OR circuit 64, and the OR circuit 64
Outputs an alarm sound detection signal S3 of an ambulance or a fire engine.

The alarm sound detection signal S3 is input to the output unit 46. In the output section 46, the voice synthesizing circuit 66 stores an alarm message. When the alarm sound detection signal S3 is input, the voice synthesizing circuit 66 reads out the alarm message (notification signal) , amplifies it with the amplifier 68, and outputs it from the speaker 36. Reproduce. When the alarm / sound detection signal S3 is input, the LED / lamp driver 70 outputs a signal (notification signal) for turning on or blinking the display 38, and turns on the display 38.
Or flashing . The output unit 72 to another unit sends the alarm sound detection signal S3 to another unit and can be used for various controls. That is, for example, the output sound can be sent to a car audio device to reduce or attenuate the output sound, or can be sent to a control device for a driver side power window to slightly open the window. The power supply for driving the alarm sound detection circuit 44 and the output unit 46 is supplied from the vehicle body via a power cable 70 to the main key-on (ACC) of the vehicle.
Always supply with ON). In the case of an electric door mirror (a door mirror in which the mirror body is rotated and the mirror angle is adjusted by driving a motor), the power cable 70 may be used as the power cable. It is also possible to mount a solar cell on any part of the door mirror 10, arrange a rechargeable cell inside, and drive with the electric power.

As described above, the driver can know the approach of the emergency vehicle by the warning message from the speaker 36 or the lighting or blinking of the display. In particular, since the door mirror is one of the few automotive parts that has both the exterior and interior of the vehicle, the exterior microphone is used to collect the exterior sound using a microphone outside the vehicle, as shown in this embodiment. 38, which is optimal for arranging an emergency sound approach notification system. In addition, the microphone 32, the alarm sound detection circuit 44, and the notification means 36, 38
If you prepare the one built in the door mirror 10,
By attaching to the vehicle, these components are also attached to the vehicle at the same time, so that the mounting of the notification system to the vehicle is simplified. Further, since the distance of the signal cable 74 from the microphone 32 to the microphone amplifier 48 of the alarm sound detection circuit 44 can be shortened, there is little possibility of malfunction due to the influence of noise, and wiring is easy. Further, since the alarm sound is not mixed with the car audio device main body, the present notification system can be operated even when the car audio device is not operating.

When the speaker 36 also serves as the speaker of the car audio device, for example, as shown in FIG.
Input to W1 and switch SW1 in accordance with the output signal of output unit 72 to other units (always connected to audio playback side when no emergency sound is detected, and switched to alarm message side when emergency sound is detected). be able to.

[0021]

[Modification] In the above embodiment, a warning message is issued from the speaker 36. However, a buzzer or the like may be provided in place of the speaker 36 to notify by a buzzer sound or other various sounds.

In the above embodiment, both the sound and the light are used for notification, but only one of them may be used.

In the above embodiment, the door mirror is disposed on the driver side door mirror, but may be disposed on the passenger side door mirror or on both door mirrors.

In the above-described embodiment, the alarm sound of an ambulance or a fire engine is detected. However, an alarm sound of a police car (Huang Huang sound) and other various alarm sounds can be detected.

[0025]

As described above, according to the first aspect of the present invention, door mirrors are few among automobile sound products.
Utilizing that it is a part that has both the exterior and interior of the car
Place the microphone outside the car,
Alarm means on the vehicle interior part of the
The circuit and output are built into the door mirror.
Can detect the alarm sound outside the vehicle and notify the inside of the vehicle.
You. Therefore, the microphone, the notification means, the alarm sound detection circuit and
And a unit with the output unit incorporated in the door mirror in advance.
If this is done, attachment to the vehicle becomes easy. Moreover, the door
Since the mirror combines the exterior and interior of the car,
Wiring of the electrical system connecting the
is there. Also, alarm sound detection circuit and microphone and alarm sound detection
Signal cable for connecting to the circuit is built into the door mirror
Therefore, the length of the signal cable can be reduced, and the noise
There is little risk of malfunction due to sound. In addition, the notification means
Inside the door mirror base near the position of the passenger in the seat
Located on the part, the passenger will be aware of the alert
be able to.

According to the invention of claim 2, another unit is provided.
Door control signal output from the output
Appropriate controls on other units outside the
Can be.

[Brief description of the drawings]

FIG. 1 is a control block diagram showing an embodiment of the present invention.

FIG. 2 is an external view of a door mirror to which the present invention is applied.
(A) is a state viewed from outside the vehicle, and (b) is a state viewed from inside the vehicle.

FIG. 3 is a diagram illustrating an example of a switching configuration of a circuit when a speaker for notification and a speaker for reproduction of a car audio device are also used.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Door mirror 12 Front door 16 Sash part 18 Front pillar 20 Sash part triangular zone 22 Base part 24 Body part 28 Car exterior 30 Car interior 32 Microphone 36 Speaker (notification means) 38 Lamp, LED (notification means) 40 Emergency vehicle 42 Alarm sound 44 Alarm sound detection circuit 72 Output unit 74 to other units Signal cable

Claims (2)

(57) [Scope of request for utility model registration] 1. A sash portion of a front door of a vehicle and Freon.
Outside and inside the vehicle in the sash triangular area sandwiched by top pillars
The front door is placed around the front door so as to separate the sides.
The base part and the outside part of the base part
Pivotally mounted on and protrudes from the front door
Body that is displaceable between the retracted and retracted states
In the door mirror formed by and a chromatography unit, and a microphone disposed in a portion of the exterior of the door mirror, current output from the microphone is built into the door mirror
A signal cable through which a sound signal is guided, and a signal cable built in the door mirror and guided through the signal cable.
Enter the sound pickup signals of the microphone wither, the warning sound detecting circuit for detecting an alarm sound generated by the <br/> et emergency vehicle or said population sound signal, is incorporated in the door mirror, the output from the alarm sound detecting circuit
Input a warning sound detection signal and output a predetermined notification signal.
An output unit for applying pressure, and an output unit disposed on the inner side of the base unit,
It is driven by the broadcast signal et output, formed by and a notifying means for informing the vehicle that the alarm sound is detected the door mirror. 2. The alarm sound detection device, which is built in the door mirror,
The alarm sound detection signal output from the output circuit is input and the
Sends control signals to other units outside the Amirror
2. The apparatus according to claim 1, further comprising an output unit to another unit.
The described door mirror.