KR900004564Y1 - Anti-theft device - Google Patents

Anti-theft device Download PDF

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Publication number
KR900004564Y1
KR900004564Y1 KR2019870003825U KR870003825U KR900004564Y1 KR 900004564 Y1 KR900004564 Y1 KR 900004564Y1 KR 2019870003825 U KR2019870003825 U KR 2019870003825U KR 870003825 U KR870003825 U KR 870003825U KR 900004564 Y1 KR900004564 Y1 KR 900004564Y1
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KR
South Korea
Prior art keywords
theft
flop
ignition
nand gate
vehicle
Prior art date
Application number
KR2019870003825U
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Korean (ko)
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KR880017795U (en
Inventor
윤홍중
Original Assignee
삼성전자 주식회사
한형수
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Priority to KR2019870003825U priority Critical patent/KR900004564Y1/en
Publication of KR880017795U publication Critical patent/KR880017795U/en
Application granted granted Critical
Publication of KR900004564Y1 publication Critical patent/KR900004564Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
    • B60R25/045—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor by limiting or cutting the electrical supply to the propulsion unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

내용 없음.No content.

Description

자동차 도난 방지회로Car anti-theft circuit

도면은 본 고안의 자동차 도난 방지 회로도.Figure is an automobile anti-theft circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 타이머 2 : 레지스터1: Timer 2: Register

3,4 : 플립플롭 5,6,7,8 : 낸드게이트3,4 flip-flop 5,6,7,8 NAND gate

9 : 릴레이 10 : 점화코일9: relay 10: ignition coil

SW1-SW2: 스위치 R1-R2: 저항SW 1 -SW 2 : switch R 1 -R 2 : resistance

C1-C2: 콘덴서 Q1,Q2: 트랜지스터C 1 -C 2 : Capacitor Q 1 , Q 2 : Transistor

ZD : 제너다이오드ZD: Zener Diode

본 고안은 자동차의 도난을 사전에 막을 수 있는 자동차 도난 방지회로에 관한 것이다.The present invention relates to a vehicle anti-theft circuit that can prevent theft of the vehicle in advance.

종래의 자동차 도난을 방지하는 방법은 자동차 운전대를 열쇠로 제어하는 방법과 자동차문에 센서를 부착하여 부저를 울려주는 방법이 있었다.Conventional methods of preventing theft of a vehicle include a method of controlling a car steering wheel with a key and a method of attaching a sensor to a car door to ring a buzzer.

본 고안은 종래의 방법과는 다른, 계전기에 점화코일을 연결하여 점화코일에 오프될 때 엔진의 시동이 꺼지도록하여 자동차 도난을 막는 자동차도난 방지회로로써, 자동차의 도난을 방지하는 데 그 목적이 있다.The present invention, unlike the conventional method, by connecting the ignition coil to the relay to turn off the engine when the ignition coil is turned off by the vehicle theft prevention circuit to prevent theft of the vehicle, the purpose of preventing theft of the vehicle have.

이하에 첨부된 도면을 참조하면, 운전자가 차를 떠날 때 계기판 밑의 보이지 않는 적당한 위치에 설치된 도난방지용 스위치(SW1)가 온이 되며 시스템 전체가 동작상태로된다. 이때 베이스가 분압저항(R1R2)을 통해 바테리 전원(A)과 스위치(SW1)에 접속되고, 콜렉터가 바테리전원(A)의 분압된 전압을 일정전위로 유지시키는 제너다이오드(ZD)에 접속된 트랜지스터(Q1)가 온이 되어 회로에 전원이 공급되고, 점화용 스위치(SW2)를 온시키면서 낸드게이트(5)의 분압저항(R5,R6)과 낸드게이트(5)를 통해서 점화용 토글 플립플롭(3)이 동작하며, 이 때 타이머(1)에서 발생되는 주기(T)의 펄스가 2개의 쉬프트 레지스터(Shift register)로 구성된 복합형 4비트 스태틱(Static) 레지스터(2)에 인가된다.Referring to the accompanying drawings below, when the driver leaves the car, the anti-theft switch SW 1 installed at an invisible proper position under the instrument panel is turned on and the entire system is in an operating state. At this time, the base is connected to the battery power source A and the switch SW 1 through the voltage divider R 1 R 2 , and the collector maintains the divided voltage of the battery power source A at a constant potential ZD. The transistor Q 1 connected to is turned on to supply power to the circuit, and the voltage dividing resistors R 5 and R 6 and the NAND gate 5 of the NAND gate 5 are turned on while the ignition switch SW 2 is turned on. Toggle flip-flop (3) for ignition through the operation, at this time, the pulse of the period (T) generated from the timer (1) is a complex four-bit static register consisting of two shift registers (Shift register) 2) is applied.

펄스의 주기(T)는 타이머(1)에 접속된 저항(R7,R8)과 콘덴서(C2)에 의해 결정된다. 즉, 주기(T)는 다음과 같다.The period T of the pulse is determined by the resistors R 7, R 8 and the capacitor C 2 connected to the timer 1. That is, the period T is as follows.

듀티사이클(D)은 다음과 같다.Duty cycle (D) is as follows.

저항(R7,R8)과 콘덴서(C2)에 의해 설정된 주기(T)가 지나면 쉬프트 레지스터(2)에 인가된 펄스에 의해 낸드게이트(6)의 출력이 하이상태(H)가 되어 트랜지스터(Q2)는 온이 되므로 릴레이(9)의 접점(NC)이 열리고, 점화코일(10)의 1차측 전원이 차단된다.When the period T set by the resistors R 7, R 8 and the capacitor C 2 passes, the output of the NAND gate 6 becomes a high state H by a pulse applied to the shift register 2. Since Q 2 is turned on, the contact NC of the relay 9 opens, and the primary power supply of the ignition coil 10 is cut off.

다음에 타이머(1)에서 쉬프트 레지스터(2)에 둘이상의 펄스가 인가되지만, 낸드게이트(6)의 출력이 로우상태(L)이 되어서 트랜지스터(Q2)가 오프되고, 릴레이(9)의 접점(NO)이 연결되어 점화코일(10)의 1차측에 전원이 인가되며, 점화코일(10)의 2차측에 전압이 유도된다.Next, two or more pulses are applied to the shift register 2 by the timer 1, but the output of the NAND gate 6 becomes the low state L, so that the transistor Q 2 is turned off, and the relay 9 contacts. NO is connected to supply power to the primary side of the ignition coil 10, and a voltage is induced to the secondary side of the ignition coil 10.

그러나 주기(T)가 반복되고 점화전압토글 플립플롭(4)이 동작되면, 트랜지스터(Q2)가 계속 온이 되어 점화코일(10)은 오프되므로 엔진에 시동이 걸리지 않게 된다.However, when the cycle T is repeated and the ignition voltage toggle flip-flop 4 is operated, the transistor Q 2 is continuously turned on so that the ignition coil 10 is turned off so that the engine is not started.

이 상태는 다시 도난 방지용 스위치(SW1)가 오프될때까지는 계속된다.This state continues until the anti-theft switch SW 1 is turned off.

상기한 바와같은 본 고안의 회로를 자동차에 연결하면, 자동차의 도난을 방지할 수 있다.If the circuit of the present invention as described above is connected to a vehicle, theft of the vehicle can be prevented.

Claims (1)

자동차의 도난을 사전에 예방하는 도난방지회로에 있어서, 회로에 전원을 공급하도록 도난방지용 스위치(SW1)가 트랜지스터(Q1)의 베이스에 연결되고, 점화용 토글 플립플롭(3)이 동작되도록 점화용 스위치(SW2)가 낸드게이트(5)의 분압저항(R5,R6)과 낸드게이트(5)를 통해서 플립플롭(2)에 연결되며, 타이머(1)에 접속된 저항(R7,R8)과 콘덴서(C2)에 의해 결정된 주기(T)의 펄스가 두 개의 4비트 쉬프트레지스터로 구성된 복합형 4비트 스태틱 레지스터(2)에 인가되도록 연결되고, 플립플롭(3)과 레지스터(2)의 출력을 받아서 점화 전압 토글 플립플롭(4)이 낸드게이트(6)를 통해 트랜지스터(Q2)의 베이스에 연결되어 릴레이(9)를 구동시키고 점화코일(10)을 차단함으로써 엔진에 시동이 걸리지 않도록 연결되어지는 것을 특징으로 하는 자동차 도난 방지 회로.In the anti-theft circuit which prevents theft of the vehicle in advance, the anti-theft switch SW 1 is connected to the base of the transistor Q 1 so as to supply power to the circuit, and the ignition toggle flip-flop 3 is operated. The ignition switch SW 2 is connected to the flip-flop 2 via the voltage divider R 5 and R 6 of the NAND gate 5 and the NAND gate 5, and is connected to the timer 1. 7 , R 8 ) and the pulse of the period T determined by the capacitor C 2 are connected to be applied to the complex 4-bit static register 2 composed of two 4-bit shift registers, and the flip-flop 3 The ignition voltage toggle flip-flop 4 is connected to the base of the transistor Q 2 via the NAND gate 6 by receiving the output of the resistor 2 to drive the relay 9 and shut off the ignition coil 10. Anti-theft vehicle, characterized in that connected to prevent starting .
KR2019870003825U 1987-03-25 1987-03-25 Anti-theft device KR900004564Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870003825U KR900004564Y1 (en) 1987-03-25 1987-03-25 Anti-theft device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870003825U KR900004564Y1 (en) 1987-03-25 1987-03-25 Anti-theft device

Publications (2)

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KR880017795U KR880017795U (en) 1988-10-27
KR900004564Y1 true KR900004564Y1 (en) 1990-05-25

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KR2019870003825U KR900004564Y1 (en) 1987-03-25 1987-03-25 Anti-theft device

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KR880017795U (en) 1988-10-27

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