KR19990026676U - Audio security devices - Google Patents

Abstract

The present invention relates to an audio anti-theft device, and in particular, a key switch 10 for detecting whether a vehicle key is inserted; A transistor 20 connected to an output terminal of the key switch 10 and turned on / off according to an output signal thereof; An infrared sensor 30 which detects whether the audio 1 is separated from the vehicle by infrared rays; A relay 40 connected to the output terminals of the transistor 20 and the infrared sensor 30 to receive their output signals and change a contact point thereof; The airbag electronic control unit 50 and the inflator 60 are connected to the output terminal of the relay 40 and receive the output signal thereof to determine the theft of the audio 1 and to deploy the airbag to injure an intruder in the vehicle. When the audio is released without the vehicle key being inserted into the key cylinder, the airbag is deployed to injure the intruder in the vehicle for theft of the audio, making it easy for criminals to arrest and prevent theft of the audio. can do.

Description

Audio security devices

The present invention relates to an audio anti-theft device, and in particular, if there is someone who breaks into the vehicle and leaves the audio from the vehicle for the purpose of theft of the vehicle audio, the airbag is deployed to injure the intruder to prevent the criminal from being caught and prevent theft of the audio. It relates to an audio anti-theft device.

In general, the conventional vehicle does not have a separate audio anti-theft device, there is a problem that can easily be separated from the vehicle if the intruder to intrude into the vehicle for the purpose of audio theft.

The present invention devised to solve the problems as described above is to prevent theft of the audio by invading the intruder into the interior of the vehicle to deploy the airbag installed in the vehicle to cause fatal injury to the intruder to easily arrest the criminal to prevent audio theft There is this.

1 is a block circuit diagram showing an audio anti-theft device according to the present invention,

Figure 2 is an installation state showing a state in which the infrared sensor of the audio anti-theft device according to the present invention is installed.

* Description of the symbols for the main parts of the drawings *

1: audio 2: chassis

10 key switch 20 transistor

30: infrared sensor 40: relay

50: airbag electronic control unit 60: inflator

B: battery

In order to achieve the above object, an audio anti-theft device according to the present invention includes: key detecting means for detecting whether a vehicle key is inserted; Audio theft detection means for detecting whether the audio is stolen; Switching means connected to the output terminals of the key detecting means and the audio detecting means and receiving their output signals; And an airbag deployment means connected to an output terminal of the switching means and receiving an output signal thereof to determine audio theft and deploying an airbag to injure an intruder in a vehicle.

Hereinafter, a preferred embodiment of an audio anti-theft device according to the present invention will be described in detail with reference to the accompanying drawings. R in the figure, which is not described, is for current control.

1 is a block circuit diagram showing an audio anti-theft device according to the present invention, Figure 2 is an installation state diagram showing the infrared sensor installed in the audio anti-theft device according to the present invention.

The anti-theft device according to the present invention comprises a key switch 10, a transistor 20, an infrared sensor 30, a relay 40, an airbag electronic control unit 50, and an inflator 60. do.

First, the key switch 10 is connected to the output terminal of the battery B to output a signal by changing the contact point depending on whether the vehicle key is inserted, is installed on one side of the key cylinder (not shown).

The transistor 20 is connected to its output terminal to operate according to the output signal of the key switch 10. Here, the transistor 20 is turned on when the vehicle key is inserted into the key switch 10 to cut off the battery B. When the vehicle key is separated from the key switch 10, the transistor 20 is turned off to turn off the battery ( B) Apply power to the other end.

In addition, the infrared sensor 30 is installed in the rear chassis of the audio 1 to detect the infrared signal when the audio 1 is separated from the vehicle and output a signal.

In addition, the relay 40 is connected to the output terminal of the transistor 20 and the infrared sensor 30 to be operated according to whether the vehicle key is inserted and whether the audio 1 is separated. In this case, the relay 40 is powered by the battery B from the transistor 20, and when the deviation of the audio 1 is detected by the infrared sensor 30 to output a signal, the relay 40 is magnetized to contact the contacts.

On the other hand, the airbag electronic control unit 50 is connected to the output terminal of the relay 40 to compare / determine the input signal with the pre-stored data and output a control signal to the inflator 60 when the audio 1 is stolen. . The inflator 60 is connected to its output end to explode a squib in accordance with a control signal of the airbag electronic control unit 50 to generate gas.

Hereinafter, the operation of the audio anti-theft device according to the present invention will be described.

First, when the vehicle key is removed from the key switch 10, the transistor 20 is turned off, and thus the relay 40 is supplied with the battery B power. In this state (i.e., parking stop), if an intruder in the vehicle removes the audio 1 from the chassis 2 for theft of the audio 1, the infrared sensor 30 detects the movement of the object and outputs a signal. do.

As a result, the relay 40 is magnetized, and the contacts come into contact with each other to output a signal.

Then, the airbag electronic control unit 50 connected to the output terminal of the relay 40 receives the output signal and determines that the audio 1 is stolen and outputs the control signal to the inflator 60.

Accordingly, the squib of the inflator 60 is exploded, gas is generated, and airbags installed in the driver's seat and the passenger seat are deployed to injure an intruder.

On the contrary, if the audio 1 is released when the vehicle key is inserted into the key switch 10, the transistor 20 is turned on so that the battery B is not supplied to the relay 40 so that the airbag is not deployed. Do not.

Therefore, when leaving the chassis 2 for checking the audio 1, the vehicle key may be removed in the state of being inserted into the key switch 10.

As described above, when the audio is released without the vehicle key being inserted into the key cylinder, the airbag may be deployed to injure the intruder in the vehicle for the purpose of theft of the audio, and the criminal may be easily arrested. It is effective in preventing theft.

Claims (5)

Key detecting means for detecting whether a vehicle key is inserted; Audio theft detection means for detecting whether the audio is stolen; Switching means connected to the output terminals of the key detecting means and the audio detecting means and receiving their output signals; And an airbag deployment means connected to an output terminal of the switching means and configured to deploy an airbag to receive an output signal thereof and determine audio theft to injure an intruder in a vehicle. 2. The apparatus of claim 1, wherein the key detecting means comprises: a key switch installed at one side of the key cylinder and switched according to whether a vehicle key is inserted; And an transistor connected to an output terminal of the key switch and receiving an output signal thereof and outputting different signals according to the input signal. The audio anti-theft device according to claim 1, wherein the audio theft detecting means is an infrared sensor installed in the audio rear chassis and installed in the audio rear chassis to detect whether the audio is separated from the vehicle. 2. The anti-theft device of claim 1, wherein the switching means is a relay which is connected to an output terminal of the key detecting means and the audio theft detecting means and whose contacts change according to their output signals. The airbag electronic control unit of claim 1, further comprising: an airbag electronic control unit connected to an output terminal of the switching means and receiving an output signal thereof to determine whether the vehicle is stolen and to output a control signal; And an inflator connected to an output end of the airbag electronic control unit to deploy an airbag according to a control signal thereof.