CN2545040Y

CN2545040Y - Infrared electronic cipher igniting device for car

Info

Publication number: CN2545040Y
Application number: CN02229551U
Authority: CN
Inventors: 尹志航
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-23
Filing date: 2002-05-23
Publication date: 2003-04-16
Anticipated expiration: 2012-05-23

Abstract

The utility model relates to a vehicle infrared electronic password ignition device which consists of a key body and a locking body; the key body consists of an outer body and an internal circuit; the locking body consists of a shell and a control circuit; the internal circuit of the key body consists of an encode oscillation circuit and an infrared emission circuit; the locking body consists of a shielding body and an external circuit; a coil hollow magnetic core, an infrared receiving tube and a field effective transistor are arranged in the shielding shell; the assembly circuit is communicated with a password detecting circuit, a timing circuit, a key loss failure circuit and an output circuit arranged behind a vehicle instrument board; the key body does not use any battery, is without electromagnetic interference, has novel and unique structure, is safe and reliable, can effectively prevent the vehicle from theft and has great economic and social benefits.

Description

Automotive infrared electronic cipher ignition device

(1) technical field

The utility model relates to a kind of automotive infrared electronic cipher ignition device that is used for automobile burglar.

(2) background technology

Automobile is stolen at present is matter of frequent occurrence, and the society that occurs as of this thing brings very big harm.Stolen for preventing automobile, people have adopted many countrmeasures, developed various anti-joyride devices, as anti-theft column lock, burglar alarm, but these burglary-resisting installations, variation along with development of science and technology and row robber instrument, be easy to be opened or avoid, anti-theft column lock does not have antitheft effect, and burglar alarm loses warning function, therefore, the stolen problem of automobile still can't effectively solve.

(3) the utility model content

The purpose of this utility model provides a kind of later-model automotive infrared electronic cipher ignition device, can solve the stolen problem of automobile effectively;

The purpose of this utility model is achieved like this, constitute by key body and lock body two parts, key body is made of ectosome and internal circuit, lock body is made of housing and control circuit, circuit is made of coding vibration and infrared emission circuit in the key body, lock body is made of shield and extracorporeal circuit thereof, coil, hollow magnetic core and infrared receiving tube and field effect transistor are housed in the shielding case, this built-up circuit with the password testing circuit, the timing circuit that are contained in the Automobile instrument back, lose key inefficacy circuit and output circuit is connected;

The utility model novel structure, uniqueness, safe and reliable, the vehicle electronics key does not use battery, does not have any electromagnetic interference during work, does not need any operation bidirectional just can make automobile enter anti-theft state.It is stolen to effectively prevent automobile, has great society and economic benefit, and Application and Development market is very bright.

(4) description of drawings

Fig. 1 is the utility model key body, shield part-structure figure.

Fig. 2 is a circuit diagram of the present utility model.

(5) specific embodiment

By Fig. 1, Fig. 2 provides, the utility model is by key body, shield and extracorporeal circuit thereof constitute, key body is by infrared-emitting diode 2 on ectosome 1 and the axis line inside thereof, interior anterior induction coil 4 and the coding oscillating circuit that joins and infrared emission circuit constitute, ectosome 1 front portion has igniting to stir tongue 3, shield is by screened housing 8 and inner hollow magnetic core 5, the oscillator coil 6 of coiling on hollow magnetic core 5 and the infrared receiving diode 7 at rear portion and field effect transistor constitute, there is key body patchhole 9 screened housing 8 front portions, infrared receiving diode 7 in the screened housing 8 joins with extracorporeal circuit, and field effect transistor is joined with extracorporeal circuit through resistance and oscillator coil 6; Circuit, the interior circuit of shield and the concrete detailed structure of extracorporeal circuit are provided by Fig. 2 in the key body, in Fig. 2 circuit, induction coil L2 is an induction coil 4 among Fig. 1, infrared-emitting diode D2 is an infrared-emitting diode 2 among Fig. 1, hollow magnetic core M is Fig. 1 hollow magnetic core 5, oscillator coil L1 is an oscillator coil 6 among Fig. 1, and infrared receiving diode D3 is an infrared receiving diode 7 among Fig. 1.

Provide by Fig. 2, coding oscillating circuit in the ectosome 1 of key body is by coding oscillating integrated circuit IC1, resistance R 1, R2, capacitor C 1 constitutes, the infrared emission circuit is by resistance R 4, infrared-emitting diode D2, aerotron T1 constitutes, 11 of IC1,12, be connected to resistance R 1 on 13 pin respectively, R2 and capacitor C 3,16 pin of IC1 connect capacitor C 2, resistance R 4, meet induction coil L2 through diode D1 again, the 8 pin ground connection of IC1,15 pin of IC1 connect the base stage of aerotron T1 through resistance R 3, grounded emitter, the collecting electrode of T1 connects the negative pole of infrared-emitting diode D2, and resistance R 4 connects the positive pole of infrared-emitting diode D2; Circuit in the screened housing 8 of shield is by hollow magnetic core M, oscillator coil L1, infrared receiving diode D3, field effect transistor MOSFET and resistance R 5, R6, capacitor C 3, C4 constitutes, screened housing 8 ground connection, hollow magnetic core M is used for coil L1, transfer of energy between the L2, field effect transistor three utmost points are wiring circle L1 respectively, resistance R 5, R6 and ground connection, coil L1 connects capacitor C 3, C4, C6, integrated oscillator IC7, connect collecting electrode and the capacitor C 7 of aerotron T2 again through three terminal regulator IC8, R14 provides reverse bias for D3, R11 is the load of T5, infrared received signal is amplified to schmidt door G11 through T5 and connects password detection IC 2 again, IC3, invalid code timely locks IC 4, IC6, lose the key IC 5 that ceases to be in force automatically, field effect transistor and coil L1 constitute the oscillator signal amplifying circuit, diode D3 and aerotron T5 base stage link, and the output of aerotron T5 collecting electrode meets Schmidt's not gate G11;

Its extracorporeal circuit of shield is timely locked circuit, is lost cease to be in force automatically circuit and output circuit of key and form by password testing circuit, invalid code, the password testing circuit is made of integrated lock-in circuit IC2, IC3,9 pin of IC2 join with 9 pin and the resistance R 22 of IC3,16 pin of IC2 join with 16 pin and the capacitor C 13 of IC3, the 8 pin ground connection of IC2, IC3, meet oscillation resistance R16, R17, capacitor C 9, C10 respectively on 6,7,10 pin of IC2,11 pin of IC2 connect with door G1 input end and or door G7 input end, 11 pin of IC3 connect the input end with door G2 input end and door G7; Invalid code timely locks circuit and detects IC 4 by password, IC6, unidirectional controllable silicon S CR, or door G6, or door G7, constitute with door G9, the same IC2 of 16 pin of IC4,16 pin of IC3 join, the 12 pin connecting resistance R32 of IC4, R23,

capacitor C

13,2 pin of IC4 connect the trigger electrode of controllable silicon SCR through resistance R 24, the 11 pin connecting resistance R22 of IC4 and door G11, mouth 2 pin of IC6 are through resistance R 29, capacitor C 16 fellow disciple G9, G6 joins, the input end of door G7 output termination door G6,16 pin of IC6 connect the emitter of aerotron T4 and 8 pin of alarming horn vibration IC 9, aerotron T2, the emitter of T3, resistance R 13 and protective tube FU, FU meets automobile storage battery+12V, the base stage of aerotron T2 is through series connected resistance R 12, K switch 1 ground connection, 9 pin of IC6,10 pin, be connected to oscillation resistance R30 on 11 pin, R31, capacitor C 14, the 8 pin ground connection of IC6,12 pin of IC6 meet a G8, connect 1 pin of IC9 through door G8, the common terminating resistor R27 of IC6 fellow disciple G8, R25, controllable silicon SCR anode and door G1, G2 joins, the base stage of aerotron T4 connects capacitor C 15 and resistance R 28 through resistance R 26, and the collecting electrode of aerotron T4 connects the controllable silicon SCR anode through resistance R 25; Lose key and cease to be in force automatically circuit by writing IC 5 and a door G18 constitutes, the data output end 11 pin connecting resistance R18 of IC5 reach the input end with door G3,22 pin of IC5 connect the input end of a G10, the input end of door G4, the mouth of door G2,27 pin of IC5 connect the mouth of a G10, the 14 pin ground connection of IC5,28 pin of IC5 connect 1 pin of 16 pin of IC2, IC8, collecting electrode, resistance R 11, R14 and the capacitor C 7 of aerotron T2; Output circuit is made of door G5, aerotron T3, and the mouth of door G5 connects the base stage of aerotron T3 through resistance R 15, and the collecting electrode sending and receiving motivation of T3 is controlled electric network ECU, and succeeds electrical equipment JQ through ignition lock K2, and 6 pin of IC9 meet loudspeaker SP, 4 pin ground connection.

In present embodiment electricity network, IC1 is that MC145026, IC2, IC3 are that MC145028, IC4 are that MC14040, IC5 are that 28C17, IC6 are that MC14060, IC7 are that MC14069, IC8 are 7809, IC9 is SW1103, G1, G2, G3, G9 are that MC14081, G6, G7, G4 are MC14072, and G5, G8, G10 are that MC14069, G11 are MC14093.

Service condition of the present utility model is, screened housing 8 is installed in the igniting lock core rear portion under the vehicle steering, and password testing circuit, timing circuit, inefficacy circuit and output circuit are contained in the Automobile instrument back, link to each other with circuit in the screened housing by lead.During work, insert when the Electronics Cryptographic Keys body on the hollow magnetic core M of screened housing, connect micro-switch K1 simultaneously, the oscillating circuit that is made of IC7, field effect transistor works on power, and energy reaches coil L2 by coil L1, hollow magnetic core M, and the L2 induced voltage makes IC1, T1, D2 work after the D1 rectification, IC1 has 9 ternary coding sides, 19000 kinds of password combination are arranged, by changing the frequency of operation of IC1, can realize hundreds of thousands of kind password combination again; The infrared ray code signal that D2 produces axially arrives infrared receiving diode D3 by hollow magnetic core M along key body, signal amplifies through T5, password testing circuit and invalid code that IC2, IC3, IC4, IC6 formation are delivered in Schmidt's not gate G11 shaping timely lock circuit (timing circuit), just often, the SCR anode is a high level, and it is high level that the valid password signal makes 11 pin of IC2 (or IC3), G1 or G2 output high level, not gate G5 goes out low level, the T3 conducting, and automobile circuit ECU works on power;

The utility model can have two key bodies, and two the each have their own password of key body, and its circuit is basic identical, and is the coding difference of IC1, thereby constitutes different passwords, and automobile begins to use earlier the first, if the first is lost, could use second.Before the second use, 11 pin of IC5 are high level, and when using first key body, IC2 exports high level like this, G1 goes out high level with door, and with door G3 conducting, not gate G5 goes out low level, the T3 conducting, engine control circuit ECU works on power, and can work by starting relay JQ; Lose the back at first key body and use second key body, the 11 pin output high level of IC3, G2 goes out high level with door, IC5 is in write state, and 11 pin become low level, is in off state all the time with door G3, first key body promptly ceases to be in force automatically, the user needn't worry to lose key body makes automobile by pirate of the open, also needn't go special service station to write password again, makes things convenient for safely.

When using high-tech means robber car to unblank, if the key body circuit work frequency is different with decoding circuit, the illegal scanning of password can not be carried out, and also can not open ignition device; If carry out the illegal sweep test of the identical password of frequency of operation, make up (hundreds of signal impulses approximately) in the time (about 0.1 second) in 3 kinds of illegal password of scanning, IC2 (or IC3) can not export high level, the 2 pin output high level of pulse-scaling circuit IC4, SCR conducting, SCR anode are low level, and G1, G2 turn-off, in a period of time (can set 10 minutes), can not open ignition device after this even be tested to legal password combination; After the timing circuit designated time, (10 minutes) were arrived of IC6 such as have only, 2 pin of IC6 become high level, the T4 short time is by once, the SCR power-off reset, the SCR anode recovers high level, G1, G2 just might open, circuit returns to initial state, again accept the signal input of password, detect the validity of incoming signal again, the application of invalid key lock circuit, making cycle of the illegal detection scanning of same frequency reach tens talentes might open ignition device, it is impossible that robber's car almost becomes, and safety is very high, and owing to adopt IC9 short time alarming horn driving circuit, when running into illegal key body and inserting magnetic core, SCR anode low level makes IC9 send alerting signal, and the user can in time take precautions against robber's car.

Also can find out from the structure that Fig. 1 provides, the utility model is easy to use, reliable operation, the driver only uses an Electronics Cryptographic Keys body that does not need battery to finish and opens car door, start all operations such as automobile, when leaving automobile, do not need any operation bidirectional just can make automobile enter anti-theft state, owing to adopt the fabulous complete shielding construction of magnet coil of electromagnetic compatibility, thereby can not produce radiation signal and disturb automobile equipment work, code signal adopts infrared ray to transmit under closed environment, can not be subjected to the interference of any strong electromagnetic radiation and the interference of extraneous light, serviceability is very reliable, of the present utility model applying must be opened up new bright prospect for automobile burglar.

Claims

1, a kind of automotive infrared electronic cipher ignition device, be by key body, shield and circuit thereof constitute, it is characterized in that it being that key body is by the infrared-emitting diode (2) on ectosome (1) and the axis line inside thereof, interior anterior induction coil (4) and the coding oscillating circuit that joins and infrared emission circuit constitute, ectosome (1) front portion has igniting to stir tongue (3), shield is by screened housing (8) and inner hollow magnetic core (5), go up the oscillator coil (6) of coiling and the infrared receiving diode (7) and the field effect transistor formation at rear portion at hollow magnetic core (5), there is key body patchhole (9) screened housing (8) front portion, infrared receiving diode (7) in the screened housing (8) joins with extracorporeal circuit, and field effect transistor is joined with extracorporeal circuit through resistance and oscillator coil (6).

2, automotive infrared electronic cipher ignition device according to claim 1, it is characterized in that the coding oscillating circuit in the said ectosome (1) is by coding oscillating integrated circuit IC1, resistance R 1, R2, capacitor C 1 constitutes, the infrared emission circuit is by R4, D2, T1 constitutes, 11 of IC1,12, be connected to resistance R 1 on 13 pin respectively, R2 and capacitor C 3,16 pin of IC1 connect capacitor C 2, resistance R 4, meet induction coil L2 through diode D1 again, the pin ground connection of IC1,15 pin of IC1 connect the base stage of aerotron T1 through resistance R 3, grounded emitter, the collecting electrode of T1 connects the negative pole of infrared transmitting tube D2, and resistance R 4 connects the positive pole of infrared transmitting tube D2.

3, automotive infrared electronic cipher ignition device according to claim 1, the interior circuit of screened housing (8) that it is characterized in that said shield is by hollow magnetic core M, oscillator coil L1, infrared receiving diode D3, field effect transistor MOSFE7 and resistance R 5, R6, capacitor C 3, C4 constitutes, screened housing (8) ground connection, hollow magnetic core M is used for coil L1, transfer of energy between the L2, field effect transistor three utmost points are wiring circle L1 respectively, resistance R 5, R6 and ground connection, coil L1 connects capacitor C 3, C4, C6, integrated oscillator IC7, connect collecting electrode and the capacitor C 7 of aerotron T2 again through three terminal regulator IC8, resistance R 14 provides reverse bias for D3, resistance R 11 is the load of aerotron T5, infrared received signal is amplified to schmidt door G11 through T5 and connects password detection IC 2 again, IC3, invalid code timely locks IC 4, IC6, IC 5 ceases to be in force automatically, field effect transistor and coil L1 constitute the oscillator signal amplifying circuit, diode D3 and aerotron T5 base stage link, and the output of aerotron T5 collecting electrode meets Schmidt's not gate G11.

4, automotive infrared electronic cipher ignition device according to claim 1, it is characterized in that said extracorporeal circuit is by the password testing circuit, invalid code timely locks circuit, losing cease to be in force automatically circuit and output circuit of key forms, the password testing circuit is by integrated lock-in circuit IC2, IC3 constitutes, 9 pin of IC2 join with 9 pin and the resistance R 22 of IC3,16 pin of IC2 join with 16 pin and the capacitor C 13 of IC3, IC2, the 8 pin ground connection of IC3,6 of IC2,7, meet oscillation resistance R16 on 10 pin respectively, R17, capacitor C 9, C10,11 pin of IC2 connect with door G1 input end and or door G7 input end, 11 pin of IC3 connect the input end with door G2 input end and door G7; Invalid code timely locks circuit and detects IC 4 by password, IC6, unidirectional controllable silicon S CR, or door G6, or door G7, constitute with door G9, the same IC2 of 16 pin of IC4,16 pin of IC3 join, the 12 pin connecting resistance R32 of IC4, R23, capacitor C 13,2 pin of IC4 connect the trigger electrode of controllable silicon SCR through resistance R 24, the 11 pin connecting resistance R22 of IC4 and door G11, mouth 2 pin of IC6 are through resistance R 29, capacitor C 16 fellow disciple G9, G6 joins, the input end of door G7 output termination door G6,16 pin of IC6 connect the emitter of aerotron T4 and 8 pin of alarming horn vibration IC 9, aerotron T2, the emitter of T3, resistance R 13 and protective tube FU, FU meets automobile storage battery+12U, the base stage of aerotron T2 is through series connected resistance R 12, K switch 1 ground connection, 9 pin of IC6,10 pin, be connected to oscillation resistance R30 on 11 pin, R31, capacitor C 14, the pin ground connection of IC6,12 pin of IC6 meet a G8, connect 1 pin of IC9 through door G8, the common terminating resistor R27 of IC6 fellow disciple G8, R25, controllable silicon SCR anode and door G1, G2 joins, the base stage of aerotron T4 connects capacitor C 15 and resistance R 28 through resistance R 26, and the collecting electrode of aerotron T4 connects the controllable silicon SCR anode through resistance R 25; Lose key and cease to be in force automatically circuit by writing IC 5 and a door G10 constitutes, the data output end 11 pin connecting resistance R18 of IC5 reach the input end with door G3,22 pin of IC5 connect the input end of a G10, the input end of door G4, the mouth of door G2,27 pin of IC5 connect the mouth of a G10, the 14 pin ground connection of IC6,28 pin of IC5 connect 1 pin of 16 pin of IC2, IC8, collecting electrode, resistance R 11, R14 and the capacitor C 7 of aerotron T2; Output circuit is made of door G5, aerotron T3, and the mouth of door G5 connects the base stage of aerotron T3 through resistance R 15, the collecting electrode sending and receiving motivation control circuit ECU of T3, and succeed electrical equipment JQ through K switch 2,6 pin of IC9 meet loudspeaker SP, 4 pin ground connection.