CN1110745A - Single-key decrypt type anti-theft lock circuit - Google Patents

Abstract

The anti-theft lock circuit can recognize single cipher key and the number of pressing key. Anti-theft lock phase cipher setting switch is connected respectively to counter and locking circuit. The output of counter is connected respectively via positive-phase and reverse-phase setting switches with electromagnetic lock and error detecting circuit. If operation sequence is wrong, it will alarm.

Description

Single-key decrypt type anti-theft lock circuit

The present invention is a kind of single-key decrypt type anti-theft lock circuit, be mainly a kind of only to the electronic type theftproof lock of single password button and continuous compression number identification, to exempt the inconvenience of the long string of memory password.Be used in the combination type theftproof lock at vehicle or gate, all belong to a kind of pattern of setting a lot of password, when password is imported when correct, promptly open car door electromagnetic lock or gate electromagnetic lock automatically, and when the password input error surpasses a set point number, promptly start alarm buzzer and produce the alarm sound, reach anti-theft effect, though and these combination type theftproof locks have good anti-theft effect, the not only inconvenience of right this isometric string password of memory, and promptly may cause correctly opening car door or gate because of omitting the one password figure in the reality use, so the inventor desires to provide a kind of password input kenel of being convenient to remember promptly in view of remembering under the comparatively inconvenient phenomenon of long string password.

Main purpose of the present invention promptly is: a kind of single-key decrypt type anti-theft lock circuit is provided, promptly changing the long string of tradition password input mode is a kind of theftproof lock that only needs to be opened with the single password button car door or gate, only need on the mode of operation according to button of setting and compression number carry out that this particular key is pushed and the pressing operation of same number after, can open car door lock or door lock, make the operator only need remember single password key and compression number and get final product, when the inconvenience that can exempt the long string of memory password.

Of the present invention time a purpose is: a kind of single-key decrypt type anti-theft lock circuit is provided, more need when setting the last pressing operation of compression number, the push action beginning of long period need be carried out and car door lock or door lock can be opened, if last compressing time is too short, promptly can't open, these designs also strengthen its identification and antitheft function.

The invention provides single-key decrypt type anti-theft lock circuit, by a plurality of password input buttons, just anti-phase button configuration switch, reset circuit, counter, input is connected with the error detection circuit of the phase inverter formation of electric capacity, the electromagnetic lock circuit, lock-in circuit and circuit for alarming and touch potential configuration switch are formed, it is characterized in that: each password input button one end points ground connection in parallel, the other end connects just anti-phase button configuration switch respectively, just, the end in addition of the anti-button configuration switch end points that forms in parallel is connected on counter and the lock-in circuit, each terminal count output of counter is connected with the touch potential configuration switch, this touch potential configuration switch just has, anti-phase two groups of switches, its positive switch and phase-veversal switch end points are connected in parallel in the input of electromagnetic lock circuit and error detection circuit, the error detection circuit output is connected in the lock-in circuit input, the lock-in circuit output connects circuit for alarming, can carry out the singly-bound button, the three stages identification of touch potential and button time length.

Described single-key decrypt type anti-theft lock circuit is characterized in that: should can constitute a kind of remote control signal transmission by transmitting set and radio receiver by the wire line between between just anti-phase button configuration switch and counter and lock-in circuit.

Described single-key decrypt type anti-theft lock circuit is characterized in that: this counter is ten to select one counter.

Described single-key decrypt type anti-theft lock circuit is characterized in that: be serially connected with a phase inverter on the sequential end of this counter.

Described single-key decrypt type anti-theft lock circuit is characterized in that: the sequential end of this counter more is connected in the base stage of an electric crystal, and the emitter-base bandgap grading of electric crystal more is connected in the input of electromagnetic lock circuit and debug circuit.Described single-key decrypt type anti-theft lock circuit is characterized in that: be serially connected with a diode between the inverter output of this electromagnetic lock circuit and debug circuit input end.

Described single-key decrypt type anti-theft lock circuit is characterized in that: be connected with a transistor between the sequential end of the output of this lock-in circuit and counter.

Described single-key decrypt type anti-theft lock circuit is characterized in that: this circuit for alarming is that RC differential resistance electric capacity, phase inverter, transistor and an alarm buzzer constitute.

Described single-key decrypt type anti-theft lock circuit is characterized in that: the inverter output of this electromagnetic lock circuit connects a transistor and is connected with electromagnetic lock.

Further specify architectural feature of the present invention and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a calcspar of the present invention.

Fig. 2 is the embodiments of the invention calcspar.

Fig. 3 is a detailed circuit diagram of the present invention.

As shown in Figure 1, calcspar for theftproof lock of the present invention, for having positive button configuration switch 21 and the anti-phase button configuration switch 22 that password input switch 10 both sides that a plurality of buttons constitute connect a respective keys quantity respectively with one group, and this just, anti-phase button configuration switch 21,22 output is connected to 10 respectively and selects on a counter 30 and the lock-in circuit 70, this ten select be connected with a reset circuit 40(on the counter 30 so that regularly replacement effect of counter to be provided), counter 30 individual count outputs are sent into an inside also for just containing, in the number of times configuration switch 23 of anti-phase configuration switch, and number of times configuration switch 23 is sent the correct and wrong signal of representative respectively and is entered in an electromagnetic lock circuit 50 and the error detection circuit 60 thus, error detection circuit 60 output signals then are connected with circuit for alarming 80 and counter 30 respectively through lock-in circuit 70, and under the above-mentioned annexation, this just is being positioned at two groups of drawing left side, anti-phase button configuration switch 21, the 22nd, confession setting input switch 10 a wherein button is a cryptographic key, and it is set at mode and is made as connection (ON) for making the positive button configuration switch 21 corresponding position of the switch, otherly then be made as disconnection (OFF), then be made as disconnection (OFF) in the anti-phase button configuration switch 22 corresponding position of the switch, otherly be made as connection (ON), make this ten select a counter 30 only can see through the switch that this positive button configuration switch 21 is set at connection partly to be communicated with password input switch 10 corresponding keys, and can be when pushing the password key of this setting, promptly sending into signal to ten via positive button configuration switch 21 selects in the counter 30, so that carry out the calculation times operation of button compression number, and this anti-phase button configuration switch 22 is communicated with lock-in circuit 70 for making other key switches beyond the password key, so can be when password be pushed mistake, promptly directly send into signal to lock-in circuit 70, lock circuit 70 is sent signal to alarm buzzer 80 and is produced the alarm sound by this, and send signal to ten simultaneously and select a counter 30 to make it be locked in static (not counting) state, reach the password identification effect of phase I.

The user is except need are pushed this single specific keys, when it more need be pressed into a set point number continuously and the last time push action need prolong the appropriate time beginning and can reach the effect of unblanking as scheduled, and this compression number and the last password identification target that needs the prolongation compressing time promptly to be respectively second stage of the present invention and phase III, wherein second stage password compression number identification effect, rheme is set at the number of times configuration switch 23 on Fig. 1 right side before being mat, this number of times configuration switch 30 is also just aforementioned for being similar to, anti-phase button configuration switch 21,22 structure and setting means, also just be set at respectively for having two groups, anti-phase switches set, if be set at when pushing three times, be about to its 3rd positive corresponding to counter 30 the 3rd terminal count output, anti-phase number of times configuration switch is made as connection (ON) respectively and cuts off (OFF), otherly then be made as opposite keying state, the positive of this number of times configuration switch 23 and phase-veversal switch are for being connected to respectively on electromagnetic lock circuit 50 and the error detection circuit 60, that is only constitute connected loop at counter 30 the 3rd terminal count output and electromagnetic lock circuit 50, when the password of this setting is pushed three times and make rolling counters forward to three, promptly send high potential by the 3rd output, be fed through electromagnetic lock circuit 50 through number of times configuration switch 23, with the formation loop of unblanking, when if compression number is not inconsistent, promptly carry out used for timing operation by error detection circuit 60, treat that timing time later and aforementioned electromagnetic lock circuit 50 when not starting yet, promptly sending signal to lock-in circuit 70 gives counter 30 lockings and makes circuit for alarming 80 produce alarm, and finish the compression number identification step of second stage, but when aforementioned compression number identification is errorless, also need carry out the push action of long period the last time, that is be provided with charging capacitor structure at these electromagnetic lock circuit 50 inputs, under the step that needs to push in this long period, make that this charging capacitor is chargeable to trigger the internal logic lock to high potential beginning, so, if only do the short time when pushing, promptly because electric capacity undercharge and still can't open door lock, so theftproof lock of the present invention only begins can expectably unblank to finish the 3rd section the identification of unblanking knowing under the situation of its compression number.

Therefore, by as can be known aforementioned, the present invention promptly constitutes a kind of singly-bound with the aforementioned circuit of respectively organizing, the single key stroke formula theftproof lock of compression number and the last three stages identification that need push the long period, so the user only need remember this singly-bound and compression number and get final product, the usefulness of being convenient to remember should be arranged, and under aforementioned three stages identification operation, excellent anti-theft effect is also arranged, and on practice, also can be just at this, the anti-phase configuration switch 21 of pushing, the wireless remote control mode that 22 and ten modes of selecting the lead of 70 of a counter 30 and lock-in circuits directly to be communicated with are changed into by being constituted with transmitting set 91 and radio receiver 92 shown in the embodiment of Fig. 2 is transmitted related signal, to exempt wiring problem therebetween, should be the design of a tool practicality and progressive.

About detailed circuit of the present invention aspect, can be referring to shown in Figure 3, the left side is promptly with most password input buttons 10 of vertical arrangement and on a left side, right both sides are corresponding respectively just to connect respective numbers, anti-phase button configuration switch 2122, and be that parallel connection is ground state at an end points of this password input button 10, and be that its password key of setting is 13 in drawing, so import button 10 left sides corresponding to the 13rd password, the anti-phase configuration switch 221 of right position and positive configuration switch 211 are made as cut-out (OFF) respectively and connect (ON), other switches then are respectively inverse state, these positive button configuration switch 21 outputs promptly are fed through ten through a phase inverter 31 and select in the sequential end CK of a counter 30, counter 30 upper ends connect the reset circuit 40 that contains phase inverter 41 and RC network, to supply its replacement signal, counter 30 each terminal count output 1～9 promptly with majority are just also inputing to respectively, on the central end points of the number of times configuration switch 23 that phase-veversal switch constitutes, the left side of number of times configuration switch 23, the contact of right both sides is connected in parallel respectively and is fed through in electromagnetic lock circuit 50 and the error detection circuit 60, be assumed to be in the drawing when being set in three times, even just corresponding to ten the 3rd terminal count outputs that select a counter 30, phase-veversal switch 231,232 are respectively connection and disconnection, other then is inverse state, this electromagnetic lock circuit 50 is about about 2 seconds by be provided with the integrating capacitor 51(charging interval with an input) phase inverter 52 and transistor 53 and the electromagnetic lock 54 that is connected phase inverter 52 outputs formed, that is select a counter 30 the 3rd output to keep high potential after 2 seconds ten, beginning can make phase inverter 52 transitions, make follow-up electromagnetic lock 54 energisings open, this is aforementioned what is called and pushes the reason place that need were pushed with the long period the last time, and this error detection circuit 60 also constitutes for the phase inverter 62 that is provided with timing integrating capacitor 61 with an input, the output of phase inverter 62 constitutes the loop with circuit for alarming 80 again for lock-in circuit 70 inputs that are connected to the drawing below through a diode 64, the input Asia of this lock-in circuit 70 also is connected with the anti-phase button configuration switch 22 in drawing left side, lock-in circuit 70 also has integrating capacitor 71 and phase inverter 72 equally, and circuit for alarming 80 is with RC differential resistance 83 electric capacity 82, phase inverter 81 and through transistor driving one alarm buzzer 84, in addition, phase inverter 72 outputs at this lock-in circuit 70 also are connected with aforementioned counter 30 sequential end CK through a transistor 73, can be when phase inverter 72 outputs change high electricity into, 73 conductings of mat transistor, and can make counter 30 sequential ends be locked in electronegative potential, and can't go input signal and counting action again, and ten select 31 of the phase inverters in a counter 30 left sides also to be provided with a transistor 32 between the input of aforementioned electromagnetic lock circuit 50 and error detection circuit 60 and at this, to make two integration charging capacitors 51,61 can be discharged when counter 30 begins to receive signal, again charge treating, to avoid misoperation, moreover, phase inverter 52 outputs in electromagnetic lock circuit 50 more are connected with phase inverter 62 inputs of error detection circuit 60 with a diode 63, and can make phase inverter 52 output high potentials in electromagnetic lock circuit 50 action the time, can make integrating capacitor 61 discharge offs of error detection circuit 60, with this error detection circuit 60 of resetting, reach and prevent to produce alarm.

On its manner of execution, when pushing the 13 password input button 101 of this setting, even a low-potential state makes phase inverter 31 outputs form a high potential pulse through positive button configuration switch 211, so make ten to select a counter 30 countings, and make first terminal count output 1 of counter 30 be high potential, and when pushing this password key 101 continuously for the third time the time, be that counter 30 the 3rd terminal count output 3 promptly changes high potential (the other electronegative potential that is output as) into, being about to this high potential signal this moment enters to electromagnetic lock circuit 50 through the positive switch 231 of number of times configuration switch 23 and gives integrating capacitor 51 chargings, and push in the process in the long period that this is pushed for the third time, promptly continue to send into high potential when integrating capacitor 51 charges to high potential state, make phase inverter 52 outputs change electronegative potential into, so make transistor 53 conductings reach to electromagnetic lock 54 energisings, reach the effect of unblanking according to this, and in the process of aforementioned continuous pressing keys, though the high potential signal that sent by counter 30 other terminal count outputs at these error detection circuit 60 inputs charges, so because of the electric weight deficiency, can't start, and after this electromagnetic lock circuit 50 triggers, also by the electronegative potential of phase inverter 52 outputs, error detection circuit 60 discharge is reset, reach and make follow-up lock-in circuit 70 and circuit for alarming 80 be non-action state.

If when the cryptographic key mistake of pushing, promptly send into electronegative potential to lock-in circuit 70 through the contact of anti-phase button configuration switch 22, give integrating capacitor 71 discharges of its input side, treat key errors and when making integrating capacitor 71 be discharged to low-potential state, even phase inverter 72 outputs change high potential into, give through transistor 73 conductings outside counter 30 lockings, also send into circuit for alarming 80 simultaneously, form a timing effect through its RC differential resistance 83 electric capacity 82, through phase inverter 81, transistor and trigger the alarm sound that alarm buzzer 84 sends one section timing time reaches the anti-theft alarm and the locking action of password mistake.

When compression number is not inconsistent as if push correct at aforementioned password key, phase shape makes counter 30 make the terminal count output of non-setting be high potential in regular turn, and successively the integrating capacitor 61 of error detection circuit 60 is charged, to be charged during to high potential, even its phase inverter 62 outputs change electronegative potential into, make the input integrating capacitor 71 of lock-in circuit 70 discharge rapidly through diode 64,, also provide antitheft effect so carry out lock count device 30 and make circuit for alarming 80 produce the alarm song of an appropriate time.

And conform to and when compression number also conforms in aforementioned this pressing keys, if the deficiency of time pushed for the last time and when still can't opening, though can't start the alarm buzzer action, so use under the unwitting situation the thieves or robbers who act under cover of night, promptly may think wrong and push one or many again, so, even error detection circuit 60 inputs are increased to high potential state, reach and trigger lock-in circuit 70 and circuit for alarming 80, still have suitable anti-theft security effect.

So with aforementioned to related description of the present invention as can be known, the three stages identification of promptly dividing into singly-bound password and compression number and pushing for a long time for the last time, really can reach good anti-theft effect, also can avoid the user to remember the inconvenience of long string password, it really is the design that is imbued with novel structure and progressive, should accord with the patent application important document, file an application in the whence in accordance with the law.

Claims (9)

1, a kind of single-key decrypt type anti-theft lock circuit, by a plurality of password input buttons, just anti-phase button configuration switch, reset circuit, counter, input is connected with the error detection circuit of the phase inverter formation of electric capacity, the electromagnetic lock circuit, lock-in circuit and circuit for alarming and touch potential configuration switch are formed, it is characterized in that: each password input button one end points ground connection in parallel, the other end connects just anti-phase button configuration switch respectively, just, the end in addition of the anti-button configuration switch end points that forms in parallel is connected on counter and the lock-in circuit, each terminal count output of counter is connected with the touch potential configuration switch, this touch potential configuration switch just has, anti-phase two groups of switches, its positive switch and phase-veversal switch end points are connected in parallel in the input of electromagnetic lock circuit and error detection circuit, the error detection circuit output is connected in the lock-in circuit input, the lock-in circuit output connects circuit for alarming, can carry out the singly-bound button, the three stages identification of touch potential and button time length.

2, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: should constitute a kind of remote control signal transmission by transmitting set and radio receiver by the wire line between between just anti-phase button configuration switch and counter and lock-in circuit.

3, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: this counter is ten to select one counter.

4, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: be serially connected with a phase inverter on the sequential end of this counter.

5, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: the sequential end of this counter also is connected in a transistorized base stage, and transistorized emitter stage also is connected in the input of electromagnetic lock circuit and error detection circuit.

6, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: be serially connected with a diode between the inverter output of this electromagnetic lock circuit and debug circuit input end.

7, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: be connected with a transistor between the sequential end of the output of this lock-in circuit and counter.

8, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: this circuit for alarming is that RC differential resistance electric capacity, phase inverter, transistor and an alarm buzzer constitute.

9, single-key decrypt type anti-theft lock circuit according to claim 1 is characterized in that: the inverter output of this electromagnetic lock circuit connects a transistor and is connected with electromagnetic lock.

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