CN103991426A - Anti-theft device and method for engine - Google Patents
Anti-theft device and method for engine Download PDFInfo
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- CN103991426A CN103991426A CN201410223539.3A CN201410223539A CN103991426A CN 103991426 A CN103991426 A CN 103991426A CN 201410223539 A CN201410223539 A CN 201410223539A CN 103991426 A CN103991426 A CN 103991426A
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Abstract
The invention relates to an anti-theft device and method for an engine. The device comprises a transceiving coil and an anti-theft controller. The transceiving coil is mounted on the periphery of an ignition switch, the anti-theft controller is connected with the transceiving coil through a wire and comprises a micro vibration sensor A1, a high-speed integrated electronic switch A2, an electromagnetic relay K, an on-off switch, a GSM wireless transmission module and a voice alarm HA. According to the anti-theft device and method, the transceiving coil in a transceiver of a key serves as a transmission and conversion carrier of electronic data and energy to perform two-way data communication with the anti-theft controller, and accordingly, password recognition is performed; the anti-theft controller can emit confirmation signals only the password recognition is accurate, the engine ignition coil is allowed to be energized, and the engine can be started normally; once the password recognition is failed, alarm can be emitted, the ignition coil circuit is cut off, and the car cannot be started normally, accordingly, the theft resistance can be performed invisibly, and the high anti-theft reliability is provided.
Description
Technical field
The present invention relates to a kind of engine anti-theft device and theft preventing method thereof, belong to automobile burglar equipment technology field.
Background technology
Along with the continuous increase of Global Auto total amount, the stolen problem of automobile is more and more subject to people's attention.10 years development outlines of auto-industry of the U.S. propose: to the 2000 whole new cars of the U.S., all will adopt immobilizer anti-joyride device, the European Community stipulates that all new cars that dispatch from the factory after in October, 1998 must equip immobilizer anti-joyride device.
Engine theftproof system is to grow up on general VATS basis, in antitheft principle, passed on the thinking of VATS, the starting that the password that utilizes key chips mates to come control engine with password in starting electric switch, to reach antitheft object, for the automobile that anti-theft locking system of engine is housed, even if car stealer opens the car door automobile that can not start the engine drives away.
Summary of the invention
Technical matters to be solved by this invention is, for overcoming the shortcoming of prior art, a kind of engine anti-theft device and theft preventing method thereof are provided, by the repeater in key, take transmission and the conversion carrier that dispatch coil is electronic data and energy, carry out two-way data communication with anti-theft controller, when password identification is all correct, anti-theft controller just can send acknowledgment signal, allow the parallel further work of engine igniting coil energising, driving engine is normally started.
In order to solve above technical matters, the invention provides a kind of engine anti-theft device, comprise dispatch coil and anti-theft controller, described dispatch coil is arranged on around ignition lock, described anti-theft controller is connected with described dispatch coil by wire, and described anti-theft controller comprises vibrative sensor A1, high speed integrated electronic switch A2, electromagnetic relay K, on and off switch, gsm wireless transmitter module and phonetic alarm HA;
The positive pole of described vibrative sensor A1 is connected through on and off switch and vehicle power positive pole, the negative earth of vibrative sensor A1, and described on and off switch is connected with described dispatch coil;
Described high speed integrated electronic switch A2 has five pins, the first pin is connected with the positive pole of vibrative sensor A1, the 4th pin is connected with the negative pole of vibrative sensor A1, second and third pin and described anodal being connected of electromagnetic relay K input, described vibrative sensor A1 mouth is connected with described high speed integrated electronic switch A2 the 5th pin with resistance R 2 through diode VD2;
Described electromagnetic relay input negative pole is connected with the negative pole of vibrative sensor A1, the mouth connecting engine high-tension coil of described electromagnetic relay K;
The positive and negative polarities of described phonetic alarm HA and gsm wireless transmitter module are connected with the positive and negative polarities of described electromagnetic relay K respectively.
Further restriction technical scheme of the present invention, aforesaid engine anti-theft device, the two ends of described vibrative sensor A1 are parallel with delay switching circuit, described delay switching circuit is composed in series by the first capacitor C 1, the first resistance R 1 and the first diode VD1, between the first resistance R 1 and the first diode VD1, being provided with branch road is connected with the base stage of aerotron VT, the collecting electrode of described aerotron VT is connected with the mouth of vibrative sensor A1, and emitter is connected with the negative pole of vibrative sensor A1.
Aforesaid engine anti-theft device is provided with and deposits circuit between described diode VD2 and resistance R 2, described in deposit on circuit and be provided with and deposit electric capacity, described in deposit the negative earth of electric electric capacity.
Aforesaid engine anti-theft device, described vibrative sensor A1 is T968A type vibrative sensor, gsm wireless transmitter module is hawk GSM+XY-2000D transmitter module.
Aforesaid engine anti-theft device, described high speed integrated electronic switch A2 is TWH8778 type high-power driving switch integrated circuit or QT3353 high-speed switching circuit.
The invention provides a kind of engine anti-theft method, comprising:
(1) while normally starting vehicle, by the repeater in key, take transmission and the conversion carrier that dispatch coil is electronic data and energy, carry out two-way data communication with anti-theft controller, when password identification all correct, the on and off switch of anti-theft controller disconnects, allow the parallel further work of engine igniting coil energising, driving engine is normally started;
(2) during the improper startup of vehicle, dispatch coil can't accept electronic data in key and the transmission of energy, and the on and off switch of anti-theft controller is closed, the vibrative sensor A1 work of switching on;
(3) vibrative sensor A1 senses the vibrations of vehicle or the vibrations of driving engine, its output port output high level makes high speed integrated electronic switch A2 energising controlled through diode VD2 and resistance R 2, and control phonetic alarm HA and report to the police, start gsm wireless transmitter module simultaneously and send preset SMS to car owner;
(4) by high speed integrated electronic switch A2, control electromagnetic relay K and switch on, and by the current supply circuit of electromagnetic relay K point of cutoff fire coil.
Further, aforesaid engine anti-theft method, in step (2), during vibrative sensor A1 energising work, the switch circuit of start delay simultaneously, avoids vibrative sensor A1 mouth to produce positive pulse signal.
Beneficial effect of the present invention: the present invention take by the repeater in key transmission and the conversion carrier that dispatch coil is electronic data and energy, carries out two-way data communication with anti-theft controller, carries out password identification; Only have password identification all correct, anti-theft controller just can send acknowledgment signal, allows engine igniting coil energising, and driving engine is normally started; Once password identification failure, just can send warning, the loop of point of cutoff fire coil, cannot normally start vehicle simultaneously.Thereby can be antitheft in invisible, there is very high antitheft reliability.
Accompanying drawing explanation
Fig. 1 is contour structures schematic diagram of the present invention.
Fig. 2 is anti-theft controller circuit diagram of the present invention.
The specific embodiment
embodiment 1
The present embodiment provides a kind of engine anti-theft device, structure as depicted in figs. 1 and 2, comprise dispatch coil 1 and anti-theft controller 2, dispatch coil 1 is arranged on around ignition lock, anti-theft controller is connected with dispatch coil by wire, anti-theft controller is provided with connection plug 3, connection plug 3 is connected with the interface of the controller of engine management system, and anti-theft controller 3 comprises vibrative sensor A1, high speed integrated electronic switch A2, electromagnetic relay K, on and off switch SA, gsm wireless transmitter module and phonetic alarm HA; The positive pole of vibrative sensor A1 is connected through on and off switch and vehicle power positive pole, the negative earth of vibrative sensor A1, and on and off switch is connected with dispatch coil; High speed integrated electronic switch A2 has five pins, the first pin is connected with the positive pole of vibrative sensor A1, the 4th pin is connected with the negative pole of vibrative sensor A1, second and third pin is connected with electromagnetic relay K input is anodal, and vibrative sensor A1 mouth is connected with high speed integrated electronic switch A2 the 5th pin with resistance R 2 through diode VD2; Electromagnetic relay input negative pole is connected with the negative pole of vibrative sensor A1, the mouth connecting engine high-tension coil of electromagnetic relay K; The positive and negative polarities of phonetic alarm HA and gsm wireless transmitter module are connected with the positive and negative polarities of electromagnetic relay K respectively.
The two ends of the vibrative sensor A1 of the present embodiment are parallel with delay switching circuit, delay switching circuit is composed in series by the first capacitor C 1, the first resistance R 1 and the first diode VD1, between the first resistance R 1 and the first diode VD1, being provided with branch road is connected with the base stage of aerotron VT, the collecting electrode of aerotron VT is connected with the mouth of vibrative sensor A1, emitter is connected with the negative pole of vibrative sensor A1, between diode VD2 and resistance R 2, be provided with and deposit circuit, deposit on circuit and be provided with and deposit electric capacity, deposit the negative earth of electric capacity.
The vibrative sensor A1 of the present embodiment is T968A type vibrative sensor, and gsm wireless transmitter module is hawk GSM+XY-2000D transmitter module; High speed integrated electronic switch A2 is TWH8778 type high-power driving switch integrated circuit or QT3353 high-speed switching circuit.
The present embodiment is when concrete use: during when normal startup vehicle, by the repeater in key, take transmission and the conversion carrier that dispatch coil is electronic data and energy, carry out two-way data communication with anti-theft controller, when password identification all correct, the on and off switch of anti-theft controller disconnects, allow the parallel further work of engine igniting coil energising, driving engine is normally started.
When the improper startup of vehicle, dispatch coil can't accept electronic data in key and the transmission of energy, and the on and off switch of anti-theft controller is closed, the vibrative sensor A1 work of switching on; During vibrative sensor A1 energising work, the switch circuit of start delay simultaneously, avoids vibrative sensor A1 mouth to produce positive pulse signal.Vibrative sensor A1 senses the vibrations of vehicle or the vibrations of driving engine, its output port output high level makes high speed integrated electronic switch A2 energising controlled through diode VD2 and resistance R 2, and control phonetic alarm HA and report to the police, start gsm wireless transmitter module simultaneously and send preset SMS to car owner; By high speed integrated electronic switch A2, control electromagnetic relay K and switch on, and by the current supply circuit of electromagnetic relay K point of cutoff fire coil.
Above embodiment only, for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought proposing according to the present invention, and any change of doing on technical scheme basis, within all falling into protection domain of the present invention.
Claims (7)
1. an engine anti-theft device, comprise dispatch coil and anti-theft controller, described dispatch coil is arranged on around ignition lock, described anti-theft controller is connected with described dispatch coil by wire, it is characterized in that: described anti-theft controller comprises vibrative sensor A1, high speed integrated electronic switch A2, electromagnetic relay K, on and off switch, gsm wireless transmitter module and phonetic alarm HA;
The positive pole of described vibrative sensor A1 is connected through on and off switch and vehicle power positive pole, the negative earth of vibrative sensor A1, and described on and off switch is connected with described dispatch coil;
Described high speed integrated electronic switch A2 has five pins, the first pin is connected with the positive pole of vibrative sensor A1, the 4th pin is connected with the negative pole of vibrative sensor A1, second and third pin and described anodal being connected of electromagnetic relay K input, described vibrative sensor A1 mouth is connected with described high speed integrated electronic switch A2 the 5th pin with resistance R 2 through diode VD2;
Described electromagnetic relay input negative pole is connected with the negative pole of vibrative sensor A1, the mouth connecting engine high-tension coil of described electromagnetic relay K;
The positive and negative polarities of described phonetic alarm HA and gsm wireless transmitter module are connected with the positive and negative polarities of described electromagnetic relay K respectively.
2. engine anti-theft device according to claim 1, it is characterized in that: the two ends of described vibrative sensor A1 are parallel with delay switching circuit, described delay switching circuit is composed in series by the first capacitor C 1, the first resistance R 1 and the first diode VD1, between the first resistance R 1 and the first diode VD1, being provided with branch road is connected with the base stage of aerotron VT, the collecting electrode of described aerotron VT is connected with the mouth of vibrative sensor A1, and emitter is connected with the negative pole of vibrative sensor A1.
3. engine anti-theft device according to claim 1, is characterized in that: between described diode VD2 and resistance R 2, be provided with and deposit circuit, described in deposit on circuit and be provided with and deposit electric capacity, described in deposit the negative earth of electric electric capacity.
4. engine anti-theft device according to claim 1, is characterized in that: described vibrative sensor A1 is T968A type vibrative sensor.
5. engine anti-theft device according to claim 1, is characterized in that: described high speed integrated electronic switch A2 is TWH8778 type high-power driving switch integrated circuit or QT3353 high-speed switching circuit.
6. an engine anti-theft method, is characterized in that:
(1) while normally starting vehicle, by the repeater in key, take transmission and the conversion carrier that dispatch coil is electronic data and energy, carry out two-way data communication with anti-theft controller, when password identification all correct, the on and off switch of anti-theft controller disconnects, allow the parallel further work of engine igniting coil energising, driving engine is normally started;
(2) during the improper startup of vehicle, dispatch coil can't accept electronic data in key and the transmission of energy, and the on and off switch of anti-theft controller is closed, the vibrative sensor A1 work of switching on;
(3) vibrative sensor A1 senses the vibrations of vehicle or the vibrations of driving engine, its output port output high level makes high speed integrated electronic switch A2 energising controlled through diode VD2 and resistance R 2, and control phonetic alarm HA and report to the police, start gsm wireless transmitter module simultaneously and send preset SMS to car owner;
(4) by high speed integrated electronic switch A2, control electromagnetic relay K and switch on, and by the current supply circuit of electromagnetic relay K point of cutoff fire coil.
7. engine anti-theft method according to claim 6, is characterized in that: in step (2), during vibrative sensor A1 energising work, the switch circuit of start delay simultaneously, avoids vibrative sensor A1 mouth to produce positive pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223539.3A CN103991426A (en) | 2014-05-23 | 2014-05-23 | Anti-theft device and method for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223539.3A CN103991426A (en) | 2014-05-23 | 2014-05-23 | Anti-theft device and method for engine |
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| CN103991426A true CN103991426A (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410223539.3A Pending CN103991426A (en) | 2014-05-23 | 2014-05-23 | Anti-theft device and method for engine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037306A (en) * | 1989-05-04 | 1989-11-22 | 赵习经 | Anti-theft and anti-robbery alarm controller for whole automobile |
| CN2084440U (en) * | 1990-10-25 | 1991-09-11 | 杨德礼 | Vehicles theft-proof device |
| JPH09240432A (en) * | 1996-03-01 | 1997-09-16 | Nissan Motor Co Ltd | Vehicle burglary judging device and vehicle burglary preventing device |
| CN203186295U (en) * | 2013-03-19 | 2013-09-11 | 李小萍 | Intelligent car anti-theft alarm system |
| CN203580882U (en) * | 2013-12-11 | 2014-05-07 | 胡俊 | Automobile antitheft alarm system |
| CN203958070U (en) * | 2014-05-23 | 2014-11-26 | 无锡大星电子有限公司 | A kind of engine anti-theft device |
-
2014
- 2014-05-23 CN CN201410223539.3A patent/CN103991426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037306A (en) * | 1989-05-04 | 1989-11-22 | 赵习经 | Anti-theft and anti-robbery alarm controller for whole automobile |
| CN2084440U (en) * | 1990-10-25 | 1991-09-11 | 杨德礼 | Vehicles theft-proof device |
| JPH09240432A (en) * | 1996-03-01 | 1997-09-16 | Nissan Motor Co Ltd | Vehicle burglary judging device and vehicle burglary preventing device |
| CN203186295U (en) * | 2013-03-19 | 2013-09-11 | 李小萍 | Intelligent car anti-theft alarm system |
| CN203580882U (en) * | 2013-12-11 | 2014-05-07 | 胡俊 | Automobile antitheft alarm system |
| CN203958070U (en) * | 2014-05-23 | 2014-11-26 | 无锡大星电子有限公司 | A kind of engine anti-theft device |
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Application publication date: 20140820 |