KR20060088650A - Controlling apparatus and method of car audio - Google Patents

Abstract

Car audio control apparatus according to the present invention comprises a control unit for operating the control state of the car audio; A car audio driver controlled by the controller to operate car audio; A memory for storing predetermined information necessary for the determination of the controller; The control unit includes an information detection unit for detecting a change state of the user and / or the external environment, the information detected by the information detection unit and the setting value stored in the memory is compared, the car audio driver according to the determination Characterized in that the operating state of the change.

According to the present invention, the driver has an advantage of driving the vehicle more safely. In addition, there is an advantage that can be more safely driving adaptive to the driver's state or the external environment of the vehicle.

Safe driving, car, car audio

Description

Controlling apparatus and method of car audio

1 is a block diagram of a car audio control apparatus according to the spirit of the present invention.

2 is a perspective view of a vehicle illustrating an installation state of an external sound microphone.

3 is a diagram for illustratively explaining an acoustic pattern for the horn sound of a vehicle;

4 is a flowchart for explaining a method of controlling car audio for a horn sound.

5 is a diagram illustrating a configuration of a driver position detecting unit.

6 is a diagram illustrating the case of a sensed state of a user.

7 is a flowchart illustrating a control method of car audio for detecting and alerting a drowsiness state of a driver.

8 is a flowchart illustrating a method of controlling car audio by the moisture sensing unit.

<Explanation of symbols for the main parts of the drawings>

10 control unit 11 memory 12 car audio drive unit

13 driver position detection unit 14 moisture detection unit 15 external sound microphone

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device and a control method of car audio, and more particularly, to a control device and a control method of car audio for allowing a user to safely drive a vehicle. More specifically, the present invention relates to a control apparatus and a control method of car audio, by which the car audio is appropriately controlled according to the driving state of the vehicle, thereby enhancing the safety of the user.

Car audio is a device that can be mounted in a vehicle for convenient listening to music and radio. It is a device that provides various information to the driver.

However, when the volume of the car audio is too loud, the external sound is not transmitted to the inside of the car, which may cause a problem that adversely affects driving, and in this case an accident occurs because the driver may not know the external situation. There is a disadvantage that the risk is increased. In addition to such a problem, when the user is deeply inclined to the car audio and fails to properly respond to the external situation, the car audio mounted to make the driving safe and convenient often interferes with the safe driving.

The present invention is proposed to improve the above problems, and relates to a car audio control device and a car audio control method for more convenient use of car audio.

In addition, an object of the present invention is to propose a car audio control device and a car audio control method that enable the use of car audio in response to external situations.

Car audio control apparatus according to the present invention for achieving the above object is a control unit for controlling the car audio control state; A car audio driver controlled by the controller to operate car audio; A memory for storing predetermined information necessary for the determination of the controller; The control unit includes an information detection unit for detecting a change state of the user and / or the external environment, the information detected by the information detection unit and the setting value stored in the memory is compared, the car audio driver according to the determination Characterized in that the operating state of the change.

In addition, the control method of the car audio according to the present invention comprises the steps of sensing the information of the user and / or the change state of the external environment; And changing the operation state of the car audio based on the detected information.

By the control device and the control method of the present invention as proposed, the driver's safety is further enhanced, and the driver has the advantage of driving the vehicle more conveniently.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the accompanying embodiments, and those skilled in the art who understand the spirit of the present invention may easily add other embodiments by adding, changing, deleting, and adding components within the scope of the same idea. It may be suggested, but this is also included within the scope of the present invention.

1 is a block diagram of a car audio control apparatus according to the spirit of the present invention.

Referring to FIG. 1, an apparatus for controlling car audio according to the present invention includes a controller 10 for controlling car audio as a whole, an information sensor for transmitting various information to the controller, and an operation of the controller 10. The memory 11 includes a memory 11 for storing predetermined information required in advance, and a car audio driver 12 that is appropriately operated according to a control signal of the controller 10 to perform car audio operation.

In addition, three information sensing units are provided. First, an external sound microphone 15 for detecting an external sound of the vehicle, a moisture sensing unit 14 for detecting a moisture state around the vehicle, and a seated interior of the vehicle are provided. Driver position sensing unit 13 for detecting the state and position of the driver is included.

In detail, the external sound microphone 15 is a microphone that is specialized to detect noise outside the vehicle, in particular, the sound of the horn of another vehicle adjacent thereto. When the external sound is sensed by the external sound microphone 15 and the horn sound of another vehicle is detected, the car audio driver 12 transmits the fact to the control unit 10 according to the determination of the control unit 10. By controlling so that the operation of the car audio is paused or muted, the driver can quickly determine the vehicle driving state according to the horn sound of the external vehicle.

In detail, the moisture detecting unit 14 detects a moisture state of the outside of the vehicle, for example, a precipitation state, and if it rains, the car audio driving unit 12 is controlled according to the determination of the controller 10 so that the weather broadcasting is performed. To change the channel automatically. As a result, the driver is forced to listen to the weather broadcast to drive more safely.

In detail, the driver position detecting unit 13 detects a change in the user's body and, for example, when it is detected that the user is dozing, the operation state of the car audio is changed to an operation such as increasing the volume. In addition, the user may be driven to pay attention.

As described briefly above, the car audio control device according to the present invention is characterized in that the driver continues to drive while paying more attention according to the change of the external situation or the change of the user's situation. Hereinafter, the control device and control method of the car audio according to each state will be described in more detail.

2 is a perspective view of a vehicle illustrating an installation state of the external sound microphone.

Referring to FIG. 2, the car audio 2 mounted in the interior space of the vehicle 1 and the external sound microphone 15 mounted on the outside of the vehicle are provided.

Preferably, the external sound microphone 15 is installed at the rear of the vehicle, so that the user can more accurately recognize the horn sound of the rear vehicle that the user cannot visually observe. Of course, the external sound microphone 15 may be installed on the side of the vehicle in order to completely detect the horn sound of the vehicle placed on the blind spot of the rearview mirror.

In addition, the controller 10 determines a sound information input through the external sound microphone 15 to determine whether it is a horn of the vehicle or other noise such as a start sound of the vehicle. do. The method of determining whether or not the vehicle's horn is sound may include a sound input through the external sound microphone 15 and a sound frequency and / or sound pattern of the vehicle's horn sound previously stored in the memory 11. By comparing the sounds stored in the memory 11, if they match, it is determined that the sound of the vehicle horn can be performed to perform a predetermined control operation.

3 illustrates an acoustic pattern for the horn sound of the vehicle. Referring to FIG. 3, it can be seen that the frequency diagram 20 of the vehicle horn noise has a specific pattern, and other sounds have different sounds. It can be seen that it has a frequency pattern. Therefore, when the sound input through the external sound microphone 15 coincides with the frequency line 20 of the vehicle horn noise to some extent, it may be determined that the horn sound of the vehicle is generated. The determination of the coincidence may be performed by a predetermined control algorithm. For example, the coincidence of the sound may be determined by an algorithm such as comparing the degree of coincidence of the peak volume (db) frequencies or comparing patterns of frequencies. Could be.

The control method of the car audio by the above-described configuration will be described with reference to FIG.

First, an external sound is input through the external sound microphone 15 (St 11). Then, it is determined whether the input external sound is the horn sound of the vehicle by the control unit 10 (St 12). The operation of the controller 10 may be determined by comparing the frequency diagram of the vehicle horn noise recorded in the memory with the frequency diagram of the sound input through the external sound microphone 15.

When it is determined by the determination step St 12 that the horn sound of the vehicle is input, a predetermined car audio control operation is performed (St 13). The control operation of the car audio may be performed such that the power of the car audio is turned off, the sound is muted or the bass sound is changed, or a pre-input warning sound is broadcast.

According to such a control method, even if the driver listens to the car audio at a high volume, when the external vehicle sounds the horn, the car audio becomes quiet or a horn sound is generated, whereby the driver can quickly recognize the external condition. have. Therefore, the driver can listen to the car audio more safely.

5 is a view for explaining the configuration of the driver position detection unit.

Referring to FIG. 5, a plurality of sensors are installed in a door adjacent to a place where the driver 21 sits. For example, the sensors may include first, second, third, and fourth sensors 131, 132, 133, and 134. In addition, the sensor may be an approach sensor that detects the proximity of the object. Therefore, it is possible to detect a change in the position of the user, in particular the position of the head according to the driver's approach state.

By such a configuration, when the detection state of the sensors 131, 132, 133 and 134 is changed at a predetermined cycle due to the driver's tightening during driving or the like, it is determined that the user is dozing and the car audio A predetermined warning message can be sent. In addition, a sensing period of a sensor in which the location of the user is determined to be dozing off may be stored in the memory 11 in advance.

FIG. 6 is a diagram illustrating a sensing state of the sensor, and the uppermost side may be recognized as a state in which all sensors are sensed and the lowermost state is not detected in all sensors. Therefore, when the uppermost sensor detection state is called No. 1 and the lowest detection state is called No. 12, when the change patterns such as 6, 8, 10, etc. continue to occur, the user is determined to be asleep. The driver will be alerted.

As described above, the driver's drowsiness can be detected by periodically changing the predetermined pattern.

On the other hand, when the proximity sensor cannot be used, such as when the output is weak output, a transmitting sensor is installed on one side of the driver, a receiving sensor is installed on the other side of the driver to receive the signal transmitted from the transmitting sensor. Depending on whether it is detected by the sensor, it is also possible to determine the user's position movement. In addition, the position and number of the sensors 131, 132, 133, and 134 may be changed to an appropriate state, and the period may be set in advance in the memory 11 or may be set by operation for each driver. have.

7 is a flowchart illustrating a control method of car audio for detecting and alerting a drowsiness state of a driver.

Referring to FIG. 7, while detecting a driver's state according to a change in the detection state of the sensors 131, 132, 133, and 134 (St 21), the controller 10 and the driver doze off. If determined by the memory 11 (St 22), the car audio driver 12 is driven to send an alarm message to the user (St 23).

Of course, the user who hears the alarm message can wake up from the drowsy driving state and drive safely. The alarm message may be preset to a state of music and volume preset by the user.

8 is a flowchart illustrating a method of controlling car audio by the moisture sensing unit.

Referring to FIG. 8, the moisture detector 14 detects a moisture condition outside the vehicle. If the moisture detector 14 detects a large amount of moisture, the moisture detector 14 detects a large amount of moisture than the information stored in the memory 11. If it is large, it may be determined that the rain is coming, and thus the operation state of the car audio may be manipulated to broadcast the weather broadcast. In addition, even if a large amount of moisture is not detected, if there is a lot of moisture in the air and it is determined that the fog, it is possible to send the announcement through the car audio or to operate the car audio in a preset state.

In addition, the moisture detection unit 41 may be a sensor used for the operation of the wiper.

In detail, while moisture in the environment in which the vehicle is placed is continuously detected by the moisture detecting unit 41, when moisture of a predetermined level or more is detected (St 31), a predetermined control operation is performed by car audio ( St 32).

In the control operation of the car audio, the car audio may be turned on and automatically tuned in to a weather broadcasting channel so that the broadcast is listened to. In addition, a message may be sent asking whether to change to a weather broadcasting channel according to the user's selection, so that the broadcasting channel may be automatically changed to the weather broadcasting channel according to the user's selection.

According to the present invention, the driver has an advantage of driving the vehicle more safely. In addition, there is an advantage that can be safely driving adaptive to the driver's state or the vehicle's external environment.

Claims (8)

A control unit for operating a control state of the car audio; A car audio driver controlled by the controller to operate car audio; A memory for storing predetermined information necessary for the determination of the controller; The control unit includes an information sensing unit for detecting a change state of the user and / or external environment, The information detected by the information sensing unit and the setting value stored in the memory are compared, the operation state of the car audio control unit is changed in accordance with the determination. The method of claim 1, The information sensor includes a car audio control device that includes an external sound microphone for detecting the sound of the horn of another vehicle. The method of claim 1 The information sensor includes a driver audio position detection unit for detecting the position of the driver. The method of claim 1, The information detection unit includes a control unit of the car audio includes a moisture detection unit for sensing the moisture. Detecting information of a change state of a user and / or an external environment; And And controlling an operation state of the car audio based on the detected information. The method of claim 5, wherein And the information includes location change information of the user. The method of claim 5, wherein The control method of the car audio including the moisture information on the outside of the vehicle. The method of claim 5, wherein And the information includes a horn sound outside the vehicle.

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