KR200345101Y1 - Stealing protection apparatus for vehicles using ultrasonic sensors - Google Patents

Abstract

The present invention relates to a vehicle anti-theft device using an ultrasonic sensor, the key detection sensor unit 20 for outputting a high signal when the vehicle key is inserted into the key insertion opening (11); Ultrasonic sensor unit 30 for detecting whether the foreign matter is inserted into the gap (A) between the door panel 10 and the glass window 12, and outputs a low signal when the foreign matter is detected; An AND gate 40 for outputting the door actuator driving signal to the door actuator by performing an AND logic operation on the output signals of the key sensor 20 and the ultrasonic sensor 30; An inverter 50 inverting and outputting an output signal of the ultrasonic sensor unit 30; And an alarm unit 60 that outputs a door actuator driving prohibition signal to the door actuator and outputs an alarm signal when a high signal indicating insertion of foreign matter is output from the inverter 50.

Accordingly, the vehicle thief injects a foreign object such as a hook or wire into the gap between the door panel 10 and the glass window 12 to forcibly drive the door actuator to block the attempt to unlock the door lock. It is effective in preventing accidents.

Description

Vehicle theft prevention device using ultrasonic sensor {STEALING PROTECTION APPARATUS FOR VEHICLES USING ULTRASONIC SENSORS}

The present invention relates to an anti-theft device for a vehicle, and more particularly, to a vehicle anti-theft device for detecting an abnormal door opening attempt of the vehicle by using an ultrasonic sensor to generate an alarm and prohibit driving of the door actuator.

In general, the door lock device installed in the door of the vehicle is driven by a key or a remote control key inserted into the key insertion port of the door to control the door opening and closing.

For example, when the driver attempts to open the door by using a vehicle key or a remote control key, the driver may open the door as the door actuator of the door lock device mounted in the door panel of the vehicle is driven to unlock the door lock.

However, the door lock device as described above has a defect that a vehicle thief can insert a foreign material such as a hook or wire into a gap between the door panel and the glass window to force the door actuator to unlock the door lock.

The present invention is to solve the above-mentioned problems, the purpose of the present invention is to detect the presence of foreign matter such as hooks or wires into the gap between the door panel and the glass window using the ultrasonic sensor installed inside the door panel of the vehicle In addition, the present invention provides an anti-theft device using an ultrasonic sensor that generates an alarm when a foreign material is inserted and prohibits the driving of a door actuator.

The vehicle anti-theft device using an ultrasonic sensor for achieving the object of the present invention, the key detection sensor unit for outputting a high signal when the vehicle key is inserted into the key insertion port installed in the door panel; An ultrasonic sensor unit installed inside the door panel of the vehicle to detect whether foreign matter is inserted into a gap between the door panel and the glass window, and output a low signal when foreign matter is detected; An AND gate for performing an AND logic operation on the output signals of the key detection sensor unit and the ultrasonic sensor unit to output a door actuator driving signal of the door lock device mounted in the door panel of the vehicle to the door actuator; An inverter for inverting and outputting an output signal of the ultrasonic sensor unit; And an alarm unit that outputs a door actuator driving prohibition signal to the door actuator and outputs an alarm signal when a high signal indicating insertion of foreign matter is output from the inverter.

1 is a block diagram showing a vehicle anti-theft device using an ultrasonic sensor according to the present invention.

2 is a configuration diagram showing a state in which the ultrasonic sensor is installed on the door panel of the vehicle.

Figure 3 is a cross-sectional view showing a state in which the ultrasonic sensor is installed on the door panel of the vehicle.

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

10: door panel 11: key opening

12: glass window 20: key detection sensor unit

30: ultrasonic sensor unit 31: ultrasonic transmitter

32: ultrasonic receiver 40: AND gate

50: inverter 60: alarm unit 60

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 3, the key detecting sensor unit 20 outputs a high signal when the vehicle key is inserted into the key insertion opening 11 installed in the door panel 10, and the vehicle key is inserted into the key insertion opening 11. If not inserted, outputs a low signal.

The ultrasonic sensor unit 30 is installed in the door panel 10 of the vehicle to detect whether foreign matter such as hooks or wires is inserted into the gap A between the door panel 10 and the glass window 12.

The ultrasonic sensor unit 30 outputs a low signal when foreign matter is detected, and outputs a high signal when foreign matter is not detected.

The ultrasonic sensor unit 30 is installed on one panel of the door panel 10 of the vehicle having a double structure and is installed on the other panel and the other panel to transmit the ultrasonic wave transmitted from the ultrasonic transmitter 31 When receiving the ultrasonic wave is composed of an ultrasonic receiver 32 for outputting a high signal.

The AND gate 40 performs an AND logic operation on the output signals of the key detecting sensor unit 20 and the ultrasonic sensor unit 30 to drive the door actuator driving signal of a known door lock device mounted in the door panel 10 of the vehicle. Is output to a door actuator (not shown).

The AND gate 40 outputs a door actuator drive signal only when the key sensor 20 outputs a high signal and the ultrasonic sensor 30 outputs a high signal. Otherwise, the AND gate 40 does not output a signal. Do not.

The inverter 50 inverts and outputs the output signal of the ultrasonic sensor unit 30.

When the ultrasonic sensor unit 30 detects the foreign matter and outputs a low signal, the inverter 50 inverts the low signal and outputs the high signal.

The alarm unit 60 outputs a door actuator driving prohibition signal to a known door actuator (not shown) and outputs an alarm signal (eg, an alarm sound generation signal, Alarm lamp lighting signal) is output.

Vehicle anti-theft device using the ultrasonic sensor according to the present invention configured as described above operates as follows.

When a driver who is a vehicle owner inserts a vehicle key into the key inserting portion 11, the key detecting sensor unit 20 outputs a high signal, and the ultrasonic receiving unit 32 of the ultrasonic sensor unit 30 normally ultrasonics. Since the ultrasonic wave of the transmitter 31 is received, the ultrasonic wave receiver 32 outputs a high signal.

Accordingly, when the AND gate 40 performs an AND logic operation on the output signals of the key sensor 20 and the ultrasonic sensor 30, the AND gate 40 obtains a logic value in a high state. A door actuator driving signal of a known door locking device mounted inside the door panel 10 is output to a door actuator (not shown) to unlock the door lock.

In this case, since the inverter 50 inverts the high signal of the ultrasonic sensor unit 30 and outputs it as a low signal, a low signal is input to the alarm unit 60, and accordingly, the alarm unit 60 outputs no signal. I never do that.

On the other hand, when the vehicle key is not inserted into the key insertion unit 11, the vehicle thief is provided with foreign matter such as hooks or wires in the door panel 10 of the vehicle, so that the door panel 10 and the glass window 12 are provided. In the case of insertion into the gap A, the key sensor 20 outputs a low signal, and the ultrasonic receiver 32 of the ultrasonic sensor 30 does not receive the ultrasonic waves of the ultrasonic transmitter 31. The ultrasonic receiver 32 outputs a low signal.

Accordingly, when the AND gate 40 performs an AND logic operation on the output signals of the key sensor 20 and the ultrasonic sensor 30, the AND gate 40 obtains a logic value in a low state. Also do not output.

In this case, since the inverter 50 inverts the low signal of the ultrasonic sensor unit 30 and outputs it as a high signal, the high signal is input to the alarm unit 60, and accordingly, the alarm unit 60 prohibits driving the door actuator. A signal is output to a known door actuator (not shown) to prohibit the unlocking of the door lock, and at the same time, an alarm signal is output to generate an alarm sound or to turn on an alarm light to indicate that there is a vehicle viscosity detector.

As described above, the vehicle anti-theft device using the ultrasonic sensor according to the present invention, using the ultrasonic sensor installed inside the door panel of the vehicle detects the insertion of foreign matter such as hooks or wires into the gap between the door panel and the glass window, When a foreign object is detected, an alarm is issued and the door actuator is prohibited from driving. Therefore, a car thief inserts a foreign object such as a hook or wire into the gap between the door panel and the glass window to force the door actuator to drive the door lock. By blocking the original attempt to unlock the effect has the effect of preventing the vehicle theft accident.

What has been described above is just one embodiment for implementing the vehicle anti-theft device using the ultrasonic sensor according to the present invention, the present invention is not limited to the above-described embodiment, which is claimed in the utility model registration claims below Without departing from the gist of the present invention, anyone with ordinary knowledge in the field to which the present invention belongs will have a technical spirit of the present invention to the extent that various modifications can be made.

Claims (2)

A key detection sensor unit 20 for outputting a high signal when the vehicle key is inserted into the key insertion opening 11 installed in the door panel 10; Ultrasonic sensor unit 30 is installed inside the door panel 10 of the vehicle to detect whether foreign matter is inserted into the gap A between the door panel 10 and the glass window 12, and outputs a low signal when foreign matter is detected. ; An AND gate for outputting the door actuator driving signal of the door lock device mounted in the door panel 10 of the vehicle by AND logic operation of the output signals of the key sensor 20 and the ultrasonic sensor 30 to the door actuator. 40; An inverter (50) for inverting and outputting the output signal of the ultrasonic sensor unit (30); And The alarm unit 60 outputs a door actuator driving prohibition signal to the door actuator and outputs an alarm signal when a high signal indicating insertion of a foreign substance is output from the inverter 50. Vehicle anti-theft device using an ultrasonic sensor, characterized in that consisting of. The method of claim 1, wherein the ultrasonic sensor unit 30 An ultrasonic transmitter 31 installed on one side panel of the door panel 10 of the vehicle having a double structure to transmit ultrasonic waves; And The ultrasonic receiver 32 installed on the other panel of the door panel 10 of the vehicle having the dual structure and outputs a high signal when receiving the ultrasonic wave transmitted from the ultrasonic transmitter 31. Vehicle anti-theft device using an ultrasonic sensor, characterized in that consisting of.