KR20170001140U - Apparatus for vehicle rear horn - Google Patents

Abstract

The present invention relates to a vehicle horn device, which is attached to a vehicle to generate a horn. The vehicle rear horn device of the present invention includes: a speaker mounted on a surface of a rear bumper or a surface of a trunk of a vehicle; And a horn control unit for generating a horn sound through the speaker when a predetermined horn generating condition is satisfied.

Description

Apparatus for vehicle rear horn

The present invention relates to a vehicle horn device, which is attached to a vehicle to generate a horn.

In recent years, automobiles have been developed in the automobile market in order to pursue the safety and convenience of the driver. Accordingly, a large number of vehicle assistant systems that can increase the safety and convenience of the driver have been applied to many vehicles.

As such a basic operation assistance device for providing the convenience and safety of the driver, there can be a side mirror and a back mirror mounted on the vehicle.

Side mirrors mounted on both sides of the vehicle are protruded to the outside by about 20 to 30 cm so that when a car passes over a narrow alley, the side mirror is hit and damaged. In order to prevent this, a vehicle in which a side mirror is rotated at the time of a parking time to fold the projected portion is produced.

A back mirror mounted on the vehicle is mounted in the interior of the vehicle and is used when the driver looks to the rear.

The driver uses the side mirrors attached to the left and right doors of the vehicle and the rearview mirror on the driver's seat to move forward or backward while grasping the state of the rear. However, a rear-end collision with the rear vehicle may occur due to carelessness of the rear sight, and a child can not be caught by the watch because the rear trunk can not be seen when the vehicle is backward.

Korean Patent Laid-Open No. 10-2006-0018956

The technical problem of the present invention is to provide a means of detecting the rear of a vehicle and alerting the person behind the vehicle.

The technical problem of the present invention is to provide various warning means as warning means at the rear of the vehicle.

In addition, the technical problem of the present invention is to prevent noise from being generated around the rear of the vehicle when a sound is generated.

The vehicle rear horn device of the present invention includes: a speaker mounted on a surface of a rear bumper or a surface of a trunk of a vehicle; And a horn control unit for generating a horn sound through the speaker when a predetermined horn generating condition is satisfied.

Wherein the vehicle rear horn includes an illumination light beam mounted on a surface of a rear bumper or a trunk of the vehicle, wherein the speaker and the illumination light beam are provided in one housing frame, The illumination light beam can be illuminated.

The condition for generating the horn is satisfied when the driver senses the pressing of the crease or a sudden stop occurs which stops faster than the preset minimum stopping speed or a rear detection sensor that detects the distance to an object behind the vehicle When the distance between the object and the object is shorter than a preset threshold distance.

The rear sensing sensor transmits a direction of a sensed object position to the horn control unit, and the speaker includes a directional speaker module for directing and propagating sound. And a pivoting means for pivoting the directional speaker module, wherein the pivoting means includes: a cylindrical drum body to which the directional speaker module is coupled; And a rotating shaft for rotating the cylinder drum body, wherein the horn control unit drives the rotating unit to control the directional speaker module to be oriented toward the position of the object detected by the rearward sensor.

According to the embodiment of the present invention, it is possible to detect the rear of the vehicle and warn the person behind the vehicle as sound or light, thereby preventing human accidents due to the backward movement of the vehicle.

In addition, according to the embodiment of the present invention, a sound horn is generated as a directional sound wave when a horn sound is generated in the rear of the vehicle, thereby preventing the noise horn in the surroundings.

1 is a block diagram of a configuration of a vehicle rear horn according to an embodiment of the present invention;
2 is a view showing a state in which a rear detection sensor according to an embodiment of the present invention is mounted on a vehicle and detects a rear object.
FIG. 3 is a diagram illustrating a sound generated by a speaker according to an embodiment of the present invention. FIG.
FIG. 4 is a view showing a rotating means combined with a directional speaker module according to an embodiment of the present invention; FIG.
FIG. 5 is a diagram illustrating a speaker of a directional speaker module according to an embodiment of the present invention. FIG.

Hereinafter, advantages and features of the present invention and methods of achieving the same will be apparent from the following detailed description, taken in conjunction with the accompanying drawings. However, it should be understood that the present invention is not limited to the embodiments disclosed below, but may be implemented in various other forms, and is provided to fully inform the person skilled in the art And the present invention is only defined by the scope of the claims.

Further, in the description of the present invention, if it is judged that related art or the like may obscure the gist of the present invention, a detailed description thereof will be omitted. In addition, the present invention is not limited to the embodiments described below but may be embodied in various forms, and these embodiments are not intended to be exhaustive or to limit the scope of the present invention to those skilled in the art. It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

FIG. 1 is a block diagram of a vehicle rear horn according to an embodiment of the present invention. FIG. 2 is a view showing a rear sensing sensor mounted on a vehicle and detecting a rear object according to an embodiment of the present invention. FIG. 3 is a diagram illustrating a sound generated by a speaker according to an embodiment of the present invention. FIG.

The vehicle rear horn device may include a rear detection sensor 120, a speaker 110, and a horn control unit 100 as shown in FIG. And may further include an illumination light beam 130.

The rear detection sensor 120 is a detection sensor that detects a distance to an object behind the vehicle. The rear detection sensor 120 senses the distance to an object behind the vehicle and transmits the sensed distance to the horn control unit 100.

The rear detection sensor 120 may be configured to sense the rear of the vehicle when the vehicle is started, but may detect the rear of the vehicle only when the vehicle is operated in the reverse mode, as the case may be. The vehicle can be mounted on the surface of the rear bumper or the surface of the trunk of the vehicle as occasion demands, and can be mounted on both sides of the vehicle in some cases to detect the rear side.

The rear detection sensor 120 may use various types of detection sensors such as an infrared ray detector, an ultrasonic detector, and a laser beam detector, a camera, and the like.

For example, in the case of an infrared ray detector, it is possible to detect a distance between an object and a vehicle in the rear by receiving infrared ray reflected signals reflected by an object by emitting infrared rays. Similarly, in the case of an ultrasonic wave detector, it is possible to detect a distance between an object and a vehicle in the rear by grasping a reception time of an ultrasonic wave reflection signal reflected by an object by sending out ultrasonic waves.

Similarly, in the case of a laser beam detector, it is possible to detect a distance between an object located in the rear and a vehicle by grasping a reception time of a laser beam reflection signal reflected by an object by sending out the laser beam. In the case of a camera, it is possible to detect the distance between the object and the vehicle by sensing the change in the size of the outline of the object after detecting the outline of the object through the image processing processing by continuously photographing the rear side.

For reference, the camera here may include a lens assembly, a filter, a photoelectric conversion module, and an analog / digital conversion module. The lens assembly includes a zoom lens, a focus lens, and a compensation lens. The focus distance of the lens can be shifted under the control of the focus motor MF.

The filters include an optical low pass filter and an optical low pass filter. And may include an Infra-Red Cut Filter. An optical low-pass filter removes the high-frequency component of optical noise, while the Infra-Red cut filter blocks the infrared component of incident light. The photoelectric conversion module may include an image pickup device such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide-Semiconductor).

The speaker 110 is mounted on the surface of the rear bumper or the surface of the trunk of the vehicle to generate a sound. Horn sounds can have a variety of sounds, including horn sounds, music sounds, and recorded driver's voice.

The sound may be a sound stored in a memory such as a hard disk drive, an SSD drive, a flash memory, a CF card (Compact Flash Card), an SD card A module capable of inputting and outputting information such as a Secure Digital Card, an SM Card, an MMC Card, or a Memory Stick, .

The horn control unit 100 generates a horn sound through the speaker 110 when a predetermined horn generating condition is satisfied.

There are three cases of horn occurrence conditions.

One is that when a driver detects a rearview mirror or a room mirror and detects an object on the rear side and detects a click on the rear wheel, it senses the horn and generates a horn through the speaker 110 installed in the rear of the vehicle. At this time, the cushion may be provided as a separate cushion for allowing the horn of the rear speaker to be sounded.

The other is to detect a sudden stop which stops faster than a predetermined minimum stopping speed and to generate a horn through the speaker 110 installed in the rear of the vehicle. Therefore, it is possible to prevent collision by warning the rear vehicle due to sudden stoppage.

The other is that when the distance to the object sensed by the rear sensing sensor 120 is shorter than a preset threshold distance, a sound is generated through the speaker 110 as shown in FIG.

For example, when the critical distance is set to 2 m, if the distance between the object and the vehicle (sensing sensor) is 3 m, no sound is generated. If the distance between the object and the vehicle is 1.9 m, 1.5 m, 1 m, To generate a sound through the speaker 110. Thus, when a person stands behind the vehicle, it is possible to hear and avoid the sound of a ringing sound from the speaker 110 of the vehicle. Therefore, it is possible to prevent human accidents that may occur when a person stands behind the vehicle.

In addition, the horn control unit 100 can generate the sound volume of the honk sounds differently according to the distance between the object and the vehicle. The closer the distance between the object and the vehicle, the larger the beep sound.

For example, when the critical distance is set to 2m, when the distance between the object and the vehicle (sensing sensor) is 0.5m to 2m, a sound of 10 [dB] is generated and the distance between the object and the vehicle is less than 0.5m It is possible to generate a loud sound as a loud sound of 20 [dB]. Thus, the closer the vehicle is to the person behind it, the louder the sound of a loud sound, so that a person at the rear can accurately sense the accessibility of the vehicle.

Likewise, the horn control section 100 can generate and control the generation interval of the honk sounds differently according to the distance between the object and the vehicle. The closer the distance between the object and the vehicle is, the shorter the interval of generating the sound.

For example, when the critical distance is set to 2 m, when the distance between the object and the vehicle (sensing sensor) is 0.5 m to 2 m, a sound called "bread" is generated at intervals of 1 second. Is less than 0.5 m, it is possible to generate a sound called 'bread', which is a sound of honk sound, at 0.5 second intervals. Thus, the closer the vehicle is to the person behind the vehicle, the faster the distance between the vehicle and the person behind the vehicle.

On the other hand, the vehicle rear horn may include an illuminating light beam 130 mounted on a surface of a rear bumper or a surface of a trunk of the vehicle. The illumination light beam 130 is a lamp for emitting light, and may be embodied in various forms such as a head lamp, a taillight lamp, and a safety lamp.

The illumination light beam 130 may be integrated with the speaker 110.

That is, the illumination light beam 130 and the speaker 110 may be provided together in one single housing frame. As another example, the illumination light beam 130 and the speaker 110 may be provided in the housing frame, not in a single body.

The illumination light beam 130 and the speaker 110 may be implemented as one housing frame and may be provided at two tail lamp positions on both sides of the vehicle. And may be provided at various vehicle rear positions.

When the distance from the object sensed by the rear detection sensor 120 is shorter than a preset threshold distance, the horn control unit 100 generates a beep sound and simultaneously emits the illumination light beam 130. [ Accordingly, when a person is standing behind the vehicle, the light emitted from the illumination light beam 130 of the vehicle can be viewed and avoided. Therefore, it is possible to prevent human accidents that may occur when a person stands behind the vehicle.

Also, the horn control unit 100 can generate and control the light emission amount of the illumination light beam 130 differently according to the distance between the object and the vehicle. As the distance between the object and the vehicle becomes closer, the amount of light emitted from the illumination light beam 130 is increased and generated.

For example, when the critical distance is set to 2 m, when the distance between the object and the vehicle (sensing sensor) is 0.5 m to 2 m, the light emission amount of the illumination light beam 130 is emitted with intensity of 5 [Lux] The light amount of the illumination light beam 130 can be emitted with a high intensity of 30 [Lux]. Thus, the closer the vehicle is to the person behind the vehicle, the higher the intensity of the light emitted by the person behind the vehicle can accurately detect the risk of access to the vehicle.

Further, the horn control unit 100 can control the flashing period of the illumination light beam 130 to be controlled differently according to the distance between the object and the vehicle. The closer the distance between the object and the vehicle is, the faster the blinking period of the illumination light beam 130 is generated.

For example, when the critical distance is set to 2 m, when the distance between the object and the vehicle (detection sensor) is 0.5 m to 2 m, the blinking period of the illumination light beam 130 is emitted with a period of 0.5 [sec] When the distance between the vehicles is less than 0.5 m, the blinking period of the illumination light beam 130 can be made to emit with a period of 0.05 [sec]. Thus, the closer the vehicle is to the person behind the vehicle, the faster the vehicle is flickering, allowing the person behind the vehicle to accurately detect the vehicle's accessibility risk.

On the other hand, when the speaker 110 is used toward the rear and generates a beep sound, all the people in the rear are heard, which may cause noise pollution. Especially in areas where quietness is required, such as near schools and libraries, the rear horn sound is likely to become a noise pollution.

Therefore, in order to solve such a problem, the sound of the speaker 110 may be transmitted with directionality. The direction in which the sound is directed is the sound transmitted only in the direction in which the object is located.

The positional direction of the object can be grasped through the rear detection sensor 120. The rear detection sensor 120 senses the direction of the object position and transmits it to the horn control unit 100.

Various known methods can be used for detection of the direction of the object position. For example, when the rear detection sensor 120 is implemented as an infrared detector, the infrared detector transmits infrared rays at intervals of 20 degrees in the backward direction while rotating, and can detect whether a reflection signal is received.

If a reflection signal is received, it can be detected that there is an object in the direction. When the rear detection sensor 120 is implemented as a camera, it can detect the outline of the object after detecting the outline of the object through the image processing processing by photographing the back side continuously. In addition, there may be various known object position direction detection examples according to the type of the rear detection sensor 120.

As shown in FIG. 4, the speaker 110 includes a directional speaker module 113 for directing and propagating sounds, a rotating unit (not shown) for rotating the directional speaker module 113 111, 112).

The directional speaker module 113 is a speaker 110 means for directing and propagating sound. That is, the directional speaker module 113 has a directional speaker propagation capability that includes conversion means (not shown) for converting audio data into directional sound waves and outputs the converted directional sound waves.

For reference, the known directional sound waves allow the sound waves to be concentrated in a narrow range so that sounds can be heard even far away, and can be heard only within a narrow range. When sound is sent to the sound, it is assumed that it is distorted in advance, and the sound is corrected. In order to prevent the sound from being lost in the atmosphere, it is assumed that the sound is distorted from the beginning, and the sound is converted into a sound laser and outputted.

Generally, all the people around the speaker 110 can hear the sound, but when outputting through the directional loudspeaker 110, only the person in the direction to which the directional loudspeaker 110 is directed can hear the sound, People can not hear the sound.

For example, in the case of a smart phone having a built-in directional speaker 110, the directional speaker 110 can be used for a variety of purposes, You can watch and listen to videos or music.

The horn control unit 100 of the present invention drives the turning means 111 and 112 to control the directional speaker module 113 to be directed toward the object position detected by the rearward sensor 120. [ The rotating means 111 and 112 may be implemented by various means.

For example, as shown in Fig. 4, the rotating means 111 and 112 include a cylinder body 111 in the shape of a cylinder, and a rotating shaft 112 for rotating the cylinder body. Therefore, the directional speaker module 113 attached to the surface of the cylinder drum body 111 can be engaged.

The rotary shaft 112 is rotated by a motor controlled by the horn control unit 100 to determine the direction of the directional speaker module 113 coupled to the cylinder drum body 111.

Therefore, by rotating the cylinder drum 111 about the rotation axis, the directional speaker module 113 is directed in the direction of the object position sensed by the rearward sensor 120, and as shown in FIG. 5, Only the person in the room can hear the honking sound, and people around the other direction can not hear.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the claims of utility model registration described later. Accordingly, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the following claims.

100:
110: Speaker
120: Rear detection sensor
130: Illuminated light beam

Claims (1)

A speaker mounted on a surface of a rear bumper or a surface of a trunk of the vehicle; And
And a horn control unit for generating a horn sound through the speaker when a preset horn generating condition is satisfied,
When the horn generating condition is satisfied,
And a case in which a distance to an object detected by a rear detection sensor that detects a distance to an object behind the vehicle is shorter than a predetermined threshold distance,
The rear detection sensor transmits the direction of the detected object position to the horn control unit,
The speaker comprises: a directional speaker module for directing and propagating sound; And a turning means for rotating the directional speaker module,
Wherein the pivoting means includes a cylindrical drum body in the form of a cylinder to which the directional speaker module is coupled and a rotating shaft for rotating the cylinder drum body,
Wherein the horn control unit drives the rotation unit to control the directional speaker module to be directed in the direction of an object position sensed by the rearward sensor.

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