CN1362569A - Programmable electronic lock for automobile - Google Patents
Programmable electronic lock for automobile Download PDFInfo
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- CN1362569A CN1362569A CN 01105002 CN01105002A CN1362569A CN 1362569 A CN1362569 A CN 1362569A CN 01105002 CN01105002 CN 01105002 CN 01105002 A CN01105002 A CN 01105002A CN 1362569 A CN1362569 A CN 1362569A
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Abstract
The programmable electronic lock for automobile comprises electronic key with coder and contact and a decoder and a lockbody set with contact at the inner wall of key hole which correspondent to the contact of electronic key. The coder of electronic key possesses decoding circuit containing integrated block IC3 and coding circuit containing integrated block IC4, and the interior of lock body possesses a light-emitting circuit which is connected with correspondent contact being in key hole and contains light-emitting diode and resistor and a coder which contains integrated block IC 1 and is controlled by optical guide switch circuit containing integrated block IC2, photosensitive element and resistor, and has a shading disk which can be turned by means of key and is equipped with some loopholes, and decoder possesses decoding circuit containing integrated block IC8 and programmable execution signal output circuit containing programmable integrated block IC 9.
Description
The invention relates to lockset, particularly the electric lockset of using about automobile.
Lock is a kind of anti-theft appliance that often uses in people's daily life, and door lock, Safe lock, bicycle lock, Automotive lock etc. are arranged, and it is of a great variety, structure differs.But on the whole nothing more than mechanical lock and electronic lock two big classes.Mechanical lock generally uses lock cylinder and key, perhaps figure disc lock core and key switch; Electronic lock then adopts encoder, decoder and executive circuit to constitute.Present lock, particularly electric switch that uses on the automobile or the ignition switch lock that mostly is frame for movement greatly, its lock body is provided with lock cylinder, and is controlled it by this lock cylinder position of rotation and contacts or the supplementary contact of disconnection.Key is inserted in the lockhole of lock cylinder, remove the blocking of pellet shot from a slingshot, can be in different positions by rotary locking cylinder, make each supplementary contact closed as required, thereby start the required circuit of automobile by different situations to lock core.Therefore yet this Lock for automobile is limited by marble amount, causes the password limited amount of composition, and key thing that can drive several locks often has what is heard.More very the person's is, this type of automotive lock is very easily pried open, and does not therefore need key, car can be started as long as will be connected in the simple connection of electric wire of starter, ignition coil and other electrical equipment on the supplementary contact, so there is unsafe factor.Electronic lock is accepted to start automobile circuit after the instruction by executing agency owing to output is signal of telecommunication instruction, therefore be not afraid of picking lock, but initial electronic lock is inputed password because of keyboard, and it is big not only to take up room, and is easily spied on from the side by the people, the theft password.Occurred the wireless telecontrol electronic lock for this reason, after being received system and accepting by the remote controller output signal, unblanked.But these signals through aerial transmission are are also easily intercepted and captured and are given away secrets.And then developed the electronic lock of various use electron keys again, and so-called electron key is to be built-in with the code data memory, appearance has the key of the hard contact that links to each other with each relevant node of data storage.Decoder and instruction output circuit then are set in lock body.When electron key inserts in the key hole of lock body, each hard contact on the electron key respectively be arranged on lock body key hole in each respective metal contact contact, the data storage of electron key is connected with power supply and decoder respectively, then electron key is exported preset password to decoder, as electron key and lock body is supporting, and then decoder output signal makes the electrical equipment or the circuit that instruct the output circuit connection to be controlled carry out work.Therefore, this Automobile Electronie Lock with electron key not only can prevent picking lock effectively, and as long as without other people hand, just can there be the stolen possibility of password in electron key, safety has very big assurance, is a kind of more satisfactory electronic vehicle lock.But as long as an energising gets final product the output password data,, the stolen possibility of code data is just arranged, so there is the hidden danger of safety if key storage is improper owing to this electron key.In addition, this electronic vehicle lock has only a kind of instruction output signal, can only control a circuit that weighing apparatus is fixed, and the various automobiles of incompatibility are opened the needs of different circuit under varying environment.
The object of the present invention is to provide a kind of programmable electronic lock for automobile, it has is not afraid of picking lock and password is difficult for stolen security performance, even do not have the hidden danger of password leakage at other people hand of electron key process yet, and can adapt to various automobiles are opened different circuit under varying environment demand.
Secondary objective of the present invention is that when key and lock body do not match decoder is locked and in a considerable time, even supporting electron key inserts, decoder is not accepted correct password input yet, in case auto theft person's examination is to password.
Another purpose of the present invention is when auto theft person steals car with the electron key that does not match, and can in time give the alarm.
The object of the present invention is achieved like this:
A kind of programmable electronic lock for automobile: comprise electron key with encoder and contact, decoder and key hole inwall are provided with the lock body with corresponding contact, electron key contact, it is characterized in that: the encoder of described electron key is provided with the decoding circuit that comprises ic chip 3 and comprises the coding circuit of ic chip 4; Be provided with in the described lock body with corresponding contacts in the key hole and be connected by the encoder that comprises ic chip 1 of the illuminating circuit that comprises light emitting diode and resistance more than a group with the photoconductive switch circuit control that comprises ic chip 2, light-sensitive element and resistance; The blanking disc with some loopholes by key turns is set in the described lock body; Described decoder is provided with the decoding circuit that comprises ic chip 8 and comprises the execution signal output apparatus able to programme of ic chip 9 able to programme.
Above-mentioned programmable electronic lock for automobile is characterized in that: the encoder of described electron key is provided with the lock-in circuit that comprises ic chip 5, resistance R 18～R22, capacitor C 2, diode D1 and triode BG6 of locking ic chip 4 inputs.
Above-mentioned programmable electronic lock for automobile is characterized in that: the encoder setting of described electron key comprises the modulation circuit of ic chip 5, resistance R 23～R25, capacitor C 3; Described decoder setting comprises the demodulator circuit of ic chip 6, resistance R 27～R28, capacitor C 8～C10.
Above-mentioned programmable electronic lock for automobile is characterized in that: described decoder setting comprises the locking warning circuit of ic chip 7, diode D3～D5, resistance R 31～R33, capacitor C 11.
The present invention compares with the electronic lock of the existing electron key that uses has following advantage:
1. because electron key only behind the proper password that obtains to be awarded by the lock body inner encoder, could export the password that is stored in its coding circuit after its decoding circuit checking, even so the acquisition key also can't obtain electronic cipher.
2. in lock body and key, adopt the measure of dual coding decoding, not only improve confidentiality, and increase the quantity of password with geometric progression, but 8 address wires of each tool of ic chip 1, IC3, IC4 and IC9, then the password number reaches more than 400,000,000, and foot applies and uses, and can not have repeated code.
3. be provided with lock-in circuit, when key and lock body did not match, cryptochannel was lockable.Even the key that does not match is extracted, insert matched key, but can not accept the proper password of this electron key at a suitable time (about 15 minutes) inner demoder.Therefore can prevent effectively that auto theft person's examination to password, greatly improving the security performance of lock.
4. electron key changes in the key hole and ends diverse location by the loophole on the blanking disc, starts different photoconductive switch circuit, opens different circuit through execution signal output apparatus able to programme, adapts to the needs of various automobiles under the varying environment condition.
5. signalization modulation circuit, the built-in password of electron key becomes pulse signal output after modulation, and more difficult the deciphering decoded and given away secrets.
6. decoder is in the locked phase, with alarm sound equipment or light to warn.
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is coding circuit, illuminating circuit and the photoconductive switch circuit theory diagrams in the lock body of the present invention.
Fig. 2 is arranged on the blanking disc structural representation in the lock body.
Fig. 3 is the circuit theory diagrams of electron key of the present invention.
Fig. 4 is the circuit theory diagrams of decoder.
Fig. 5 is the waveform schematic diagram at each reference point place in the circuit of Fig. 1, Fig. 3 and Fig. 4.
Referring to Fig. 1, the coding circuit comprise ic chip 1 (PT2262) is set in the lock body of the present invention, comprises five groups of photoconductive switch circuit of ic chip 2 (CD4584), phototriode BG1-BG5, resistance R 11～R15 and comprise five groups of illuminating circuits of resistance R 6～R10, LED 3～7; The inwall of its key is provided with contact A, B, C.Contact C ground connection.Contact B links to each other with power supply (automobile storage battery) and decoder by wiring E; And link to each other with ic chip 1 the 18th pin through resistance R 2.Contact A links to each other with ic chip 1 the 17th pin through resistance R 5.Ic chip 1 the 9th pin ground connection, series resistance R1 between the 15th, 16 pin, the 1st～8 pin are address wire.When the 1st pin was unsettled, the 2nd to the 8th pin all can have " 1 ", " 0 ", four kinds of states of " unsettled " and " linking to each other with the 1st pin ", so can have 4
7=16384 codings; And when the 1st pin was in " 1 " or " 0 ", the 2nd to the 8th pin can have " 1 ", " 0 ", " unsettled " three state, then can obtain 2 * 3
7=4374 codings.Ic chip 1 can have sum to reach 20758 codings like this.The 10th～14 pin of ic chip 1 is a data wire.Every group of photoconductive switch circuit is made of a unit of ic chip 2, a light-sensitive element and a resistance; For example shown in Figure 1ly constitute one group of photoconductive switch circuit by ic chip 2-a, phototriode BG5 and resistance R 15, wherein the output of ic chip 2-a (the 1st pin) links to each other with the emitter stage of phototriode BG5 jointly with resistance 15, an end.The grounded collector of the phototriode BG1～BG5 of every group of photoconductive switch circuit, the other end of resistance R 11～R15 is interconnected to the lead D that ic chip 1 the 18th pin communicates, and the input of ic chip 2-a～IC2-e (the 2nd, 4,6,8,10 pin) links to each other with the 10th～14 pin of ic chip 1 respectively.Constitute by a light emitting diode (as LED3) and a resistance (as R6) serial connection with every group of corresponding illuminating circuit of organizing that is provided with of photoconductive switch circuit respectively, the other end of resistance R 6～R10 is interconnected to lead D, the other end ground connection of LED 3～LED7.Be provided with shadow shield 1 (see figure 2) between above-mentioned illuminating circuit and photoconductive switch circuit, its middle part is provided with the key hole 2 sub-key of power supply and passes rotation, is provided with some loopholes 3 on demand at the diverse location of plate face.Above-mentioned light emitting transistor BG1～BG5 can replace with photodiode or light resistor.Also be provided with on the lock body with the LED 2 of series connection, the lead F that resistance R 4 is connected with lead D, and resistance R 3 and LED 1 can be set between lead F and ground connection.
Referring to Fig. 3, electron key of the present invention surface is provided with and lock body key hole inwall contact A, the corresponding contact A of B, C ', B ', C '; Its inner encoder that the decoding circuit that comprises ic chip 3 (PT2272) is set and comprises the coding circuit composition of ic chip 4 (PT2262).Contact C ' ground connection; Contact B ' links to each other with the 18th pin of ic chip 3 and IC4 respectively through resistance R 25, makes dc source enter integrated package by the capacitor C 4 and the C5 filtering of parallel series between resistance R 25 and ground connection; Contact A ' the code signal input of self-locking body in the future links to each other with ic chip 3 the 14th pin.Being provided with of ic chip 1 in the setting of the 1st～8 pin address wire of ic chip 3 and the supporting lock body is identical; The 15th～16 pin links to each other with resistance R 17; The 10th～13 pin links to each other with ic chip 4 jack per line pin; The 17th pin links to each other with ic chip 4 the 14th pin, the 9th pin ground connection.Ic chip 4 the 9th pin ground connection, the 15th～16 pin links to each other with resistance R 16; The 1st～8 pin is an address wire, and its method to set up is identical with above-mentioned ic chip 1, equally 20758 codings can be set, and therefore password number of the present invention is 20758
2=4.3 * 10
8Individual.The modulation circuit of output signal and the lock-in circuit of input signal also can be set in the electron key.This modulation circuit comprises a of ic chip 5 (CD5093) and two unit of b, resistance R 23 and R24, capacitor C 3.Wherein IC5-a and IC5-b series connection, its the 1st pin links to each other with ic chip 4 the 17th pin, be serially connected with resistance 23 and capacitor C 3 between its 2nd pin and the 4th pin, resistance R 24 1 ends are connected that the other end is connected between IC5-a and the IC-6 between resistance 23 and the electric capacity 23, the base stage of triode BG7 links to each other with IC5 the 4th pin, emitter stage links to each other with contact B ', and colelctor electrode is by resistance 26 ground connection.Lock-in circuit comprises c and two unit of d of ic chip 5, resistance R 18～R22, capacitor C 2, diode D1 and triode BG6.Wherein the 8th pin of ic chip 5-c links to each other with ic chip 3 the 17th pin, and the 10th pin links to each other with ic chip 4 the 14th pin, and the 9th pin links to each other with IC5-d the 11st pin.Ic chip 5-d the 12nd and 13 pin are through the resistance 22 and capacitor C 2 ground connection of series connection.Triode BG6 base stage is joined by resistance R 20 and integrated package the 17th pin, grounded collector, and emitter stage is connected between resistance 22 and the capacitor C 2 through resistance 21.Resistance R 18 1 ends link to each other with ic chip 3 the 14th pin, and the other end links to each other with the resistance R 19 of ground connection and the non-earth terminal of capacitor C 2 respectively by diode D1.
Referring to Fig. 4, decoder of the present invention comprises the decoding circuit of ic chip 8 (PT2272) and comprises the execution signal output apparatus able to programme of ic chip 9 (EEPROM2864).The 28th pin of ic chip 8 the 18th pin and ic chip 9 jointly the lead D on lock body link to each other with automobile storage battery with obtain dc source (+5V).Ic chip 8 the 14th pin is connected (or with lead E be connected with demodulator circuit by the locking warning circuit) with lead E on the lock body, the 9th pin ground connection, the 15th links to each other with resistance R 34 with 16 pin, and the 10th～13 pin links to each other with the 10th～7 pin of IC9 respectively.Integrated package the 11st～19 pin is connected with automobile circuit of being controlled or electrical equipment respectively; The 14th pin ground connection.If electron key is provided with modulation circuit, then decoder must be provided with the demodulation electrical equipment that comprises ic chip 6 (LM567), resistance R 27 and R28, capacitor C 7～C10.Ic chip 6 the 1st and 2 pin are respectively by capacitor C 10 and C9 ground connection, the 7th pin ground connection, the 6th pin passes through capacitor C 8 ground connection and links to each other with the 5th pin by resistance R 27 respectively, the 4th pin is connected with lead D, series resistance R28 between the 4th pin and the 8th pin, the 3rd pin links to each other with lead E by capacitor C 7, the 8th pin directly or by the locking warning circuit links to each other with ic chip 8 the 14th pin, between capacitor C 7 and lead E, the signal amplification circuit that comprises triode BG8, resistance R 29 and R30, capacitor C 6 can also be set, will amplify from the pulse signal of electron key.Wherein resistance R 29 and capacitor C 6 are serially connected between capacitor C 7 and lead E; Triode BG8 base stage is connected on 6 of resistance 29 and capacitor C, and emitter stage joins with capacitor C 7 and resistance R 30 1 ends respectively, and colelctor electrode is ground connection then; Resistance R 30 other ends are connected with lead D.Decoder also can be provided with the locking warning circuit that comprises ic chip 7 (CD4584), resistance R 31～R33, capacitor C 11, diode D3～D5.Wherein ic chip 7-a the 1st pin links to each other with the 8th pin of the ic chip 6 of demodulator circuit; The 2nd pin is respectively by resistance R 31, diode D3, capacitor C 11 ground connection, links to each other with ic chip 4 the 18th pin in the decoding circuit by resistance R 33; Ic chip 7-b the 4th pin respectively be connected in ic chip 8 the 14th pin and link to each other with diode D5, the 3rd pin links to each other with lead F with ic chip 7-d the 8th pin respectively by diode D4; Resistance R 32 1 end ground connection, the other end link to each other with capacitor C 1 non-earth terminal with ic chip 7-b the 3rd pin respectively; Ic chip 7-c the 5th, 6 pin link to each other with capacitor C 1 non-earth terminal with ic chip 7-b the 3rd pin respectively; Ic chip 7-c the 5th, 6 pin link to each other with ic chip 7-b the 4th pin and ic chip 9 the 23rd pin respectively; Ic chip 7-d the 9th pin links to each other with ic chip 8 the 17th pin.Also pass through the key hole of shadow shield when the key hole of the electron key insertion lock body that matches with lock body, contact A on ring-type contact A in this moment key hole, B, C and the electron key ', B ', C ' contact respectively, with coding circuit in the lock body and the encoder conducting in the electron key.The rotating electron key drives shadow shield and goes to each position, corresponding one group or some groups of photoconductive switch circuit are illuminated and conducting, thereby data terminal (the 10th～13 pin) and the output control terminal (the 14th pin) of control integrated package IC1, with corresponding password ripple (its waveform of ordering at L is seen Fig. 5) by output (the 17th pin) through contact A, A ' reaches the decoding circuit ic chip 3 of electron key, because the address among the IC3 is identical with ic chip 1 address pin, the output control terminal of IC3 (the 17th pin) is a high level, be the input control end (14th pin) of low level by ic chip 5-c upset to ic chip 4, then the output of IC3 (the 10th～13 pin) output data is to coding circuit ic chip 4, the password that ic chip 4 will be preset after computing is exported (its M order waveform see Fig. 5) through the 17th pin, and the d. c. voltage signal (its N order waveform see Fig. 5) that is become to contain the pulse composition by modulating circuit modulates acts on contact B by contact B '.The output of ic chip 4 the 17th pin also by the resistance R 20 trigger triode BG6 of lock-in circuit, gives capacitor C 2 discharges by resistance R 21, makes its voltage be lower than 1/3 supply voltage always, makes the 9th pin of ic chip 5-c keep high level, makes IC4 not locked.Signal after the modulation reaches decoder by the lead E that joins with contact B, amplify (P point waveform is seen Fig. 5) through signal amplification circuit triode BG8, by demodulator circuit demodulation (waveform after the demodulation of Q point is seen Fig. 5) after the ic chip 7-a (R point waveform see shown in Figure 5) of locking in the warning circuit, resistance R 33 sends the ic chip 8 of decoder to, because of its address pin identical with IC4, its 10-14 pin output data is identical with the output data (also being the output data of ic chip 1) of ic chip 4, the high level of the 17th pin of ic chip 8 output simultaneously, ic chip 7-d output low level, light LED 2 by lead F, expression is because key is effective.When electron key is threaded to diverse location in lock body, each situation of opening of organizing the photoconductive switch circuit is different, the data of ic chip 1 output are also different thus, and ic chip 9 is just by these different input data, by the default different circuit of programming Control, to adapt to the needs under the automobile varying environment condition.
If electron key and lock body do not match, ic chip 1 is different with the address of IC3, the output control terminal of IC3 (the 17th pin) output low level then, ic chip 5-c upset output high level, ic chip 4 the 17th pin output low level, triode BG6 in the lock-in circuit ends, the pulse voltage of lock body ic chip 1 is by contact A at this moment, A ' gives capacitor C 2 chargings through resistance R 18 and diode D1, about about 0.5 second, C2 voltage rises to 2/3 supply voltage, ic chip 5-d output low level and with the locking of the input control end (the 14th pin) of ic chip 4, no longer receive the data of ic chip 3 outputs, ic chip 4 is not exported pulse yet, have only electron key is extracted, treat that resistance R 19 will use up (about 5 minutes) for capacitor C 2 discharges, this electron key can reuse, if electron key coding circuit ic chip 4 is different with the address pin of the ic chip 8 of decoder, the output control terminal of ic chip 8 (the 17th pin) output low level then, the ic chip 7-d output high level of locking warning circuit, diode (LED) 1 is lighted.Simultaneously, capacitor C 11 is by resistance 31 and diode D3 charging, after about 0.5 second, its voltage reaches 2/3 supply voltage, ic chip 7-b output low level then is clamped to the low level locking by diode D5 with the input (the 14th pin) of integrated package, and pulse signal can't be imported.Meanwhile, and ic chip 7-c output high level is opened alarm (sound equipment or light) by ic chip 9.High voltage on the capacitor C 11 is only extracted lock body after resistance R 32 is discharged at electron key, and about voltage of capacitor C 11 that just can make in 15 minutes is lower than 1/3 supply voltage, and the locking of ic chip 8 is disengaged, and alarm also cuts out,
Above-mentioned electron key is in the 18th pin and the contact A of ic chip 3 and IC4 ' between the overvoltage protection that comprises diode D2 and capacitor C 1 can be set.
In each above-mentioned circuit, ic chip 1 and IC4 available VD5026, YYH26 model except that the PT2262 model are replaced; IC3 and IC8 available VD5027, YYH27 except that the PT2272 model replace; IC9 can replace with the EPROM or the EEPROM of any model, and ic chip 2 and IC7 are except that replacing with also available CD40106 or CD4069 the CD4584, and ic chip 5 available CD4011 except that CD5093 replaces; Ic chip 6 is except that LM567, and available other phase-locked loop circuit such as CD4046 replace.
Claims (4)
1, a kind of programmable electronic lock for automobile: comprise electron key with encoder and contact, decoder and key hole inwall are provided with the lock body with corresponding contact, electron key contact, it is characterized in that: the encoder of described electron key is provided with the decoding circuit that comprises ic chip 3 and comprises the coding circuit of ic chip 4; Be provided with in the described lock body with corresponding contacts in the key hole and be connected by the encoder that comprises ic chip 1 of the illuminating circuit that comprises light emitting diode and resistance more than a group with the photoconductive switch circuit control that comprises ic chip 2, light-sensitive element and resistance; The blanking disc with some loopholes by key turns is set in the described lock body; Described decoder is provided with the decoding circuit that comprises ic chip 8 and comprises the execution signal output apparatus able to programme of ic chip 9 able to programme.
2, programmable electronic lock for automobile according to claim 1 is characterized in that: the encoder of described electron key is provided with the lock-in circuit that comprises ic chip 5, resistance R 18～R22, capacitor C 2, diode D1 and triode BG6 of locking ic chip 4 inputs.
3, programmable electronic lock for automobile according to claim 1 is characterized in that: the encoder setting of described electron key comprises the modulation circuit of ic chip 5, resistance R 23～R25, capacitor C 3; Described decoder setting comprises the demodulator circuit of ic chip 6, resistance R 27～R28, capacitor C 8～C10.
4, programmable electronic lock for automobile according to claim 1 is characterized in that: described decoder setting comprises the locking warning circuit of ic chip 7, diode D3～D5, resistance R 31～R33, capacitor C 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105002 CN1362569A (en) | 2001-01-02 | 2001-01-02 | Programmable electronic lock for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105002 CN1362569A (en) | 2001-01-02 | 2001-01-02 | Programmable electronic lock for automobile |
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| Publication Number | Publication Date |
|---|---|
| CN1362569A true CN1362569A (en) | 2002-08-07 |
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ID=4654091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01105002 Pending CN1362569A (en) | 2001-01-02 | 2001-01-02 | Programmable electronic lock for automobile |
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| CN (1) | CN1362569A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100497050C (en) * | 2004-01-26 | 2009-06-10 | 东芝解决方案株式会社 | Security system, authentication system for vehicle, method and program |
| CN101789144B (en) * | 2010-02-09 | 2012-01-04 | 林文宾 | Optical code circuit and opening method thereof and optical code unit |
-
2001
- 2001-01-02 CN CN 01105002 patent/CN1362569A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100497050C (en) * | 2004-01-26 | 2009-06-10 | 东芝解决方案株式会社 | Security system, authentication system for vehicle, method and program |
| CN101789144B (en) * | 2010-02-09 | 2012-01-04 | 林文宾 | Optical code circuit and opening method thereof and optical code unit |
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